text:
AAS/AIAA Astrodynamics Specialist Conference, Utah, United States Of America, 19 - 23 August 2018, vol.167, pp.883-895
Rendezvous and docking problem of a pair of low Earth orbit spacecraft is addressed. Equations for the nonlinear orbital relative motion of spacecraft are derived and a simulation code for this motion is developed. For the control algorithm, linearized Hill-Clohessy-Wiltshire (HCW) equations are used in chaser target spacecraft configuration. All authority is given to the chaser spacecraft, and the target is kept passive. The HCW equations are linearized assuming a circular orbit. Model Predictive Control (MPC) strategy is applied with safety constraints including debris avoidance and Line of Sight constraint. This includes the avoidance of a relatively moving debris with an unbounded motion. Simulation results are given and discussed. A parametric study is also performed to obtain the proper prediction horizon as well as weighting matrices to be used in the simulations.


text:
Remnants of a century-old dam
Located south of 16th Street in the Haughville neighborhood, this low-head dam was constructed in 1899 for aesthetic and recreation purposes as part of the development of Riverside Park upstream. More recently it provided for emergency intake pumps for Indy's municipal water supply. The dam partially collapsed in 2018, lowering the water levels it was holding back by at least six feet and will be replaced by a smaller, safer, and more ecologically-friendly rock dam upstream. This dam is owned by the City of Indianapolis, and prior to its collapse altered the river for 4.3 miles upstream.
Dam Safety! Never go near low-head dams. Water flows swiftly over the wall-like structures and create vortex currents that can trap even the strongest swimmers under water.
There is no formal portage around the dam, but you can make your way along shore on either side of the river.

source: m-a-p/FineFineWeb


text:
Use the video and step-by-step drawing instructions below to learn how to draw Starfire from Teen Titans Go! Stay tooned for more tutorials!
Stay tooned for more free drawing lessons by:
- Liking us on Facebook>>
- Subscribing on YouTube.com>>
- Visit How2DrawAnimals.com for free animal drawing tutorials>>
All of the free art lessons on EasyDrawingTutorials.com are good drawing tutorials for beginners and experienced artists alike. The online tutorials are easy to follow; they teach you the how to draw basics while showing you how to draw fun cartoon characters step by step. Each cartoon character has a video drawing tutorial option, as well as step-by-step photos and written text to follow.
To draw Starfire step by step, follow along with the video tutorial below and pause the video after each step to go at your own pace. You may find it easier to follow the step-by-step drawings below. The new lines in each step are shown in red, and each step is explained in the text below the photo, so you'll know exactly what to draw in each step. You may want to open the video in a new tab and use both drawing methods! Take your time and draw at your own pace.
The written step-by-step video tutorial:
Intro: Start off with a pencil sketch. In the beginning stages, don't press down too hard. Use light, smooth strokes for sketching.
Step 1: Draw a big circle near the top of the paper as a guide for Starfire's head. First make four marks to determine the circle's height and width. Then connect the marks using curved lines. If you're struggling to draw the circle, just trace the outer rim of a circular object like a coin or a lid.
Step 2: Inside the head, draw a curved, horizontal line as a guide to help you place Starfire's facial features later. Add a curved, vertical line across the circle for another construction guide line.
Step 3: Under Starfire's head, draw two short lines as guides for the neck and a small triangle as a guide for the torso. Make the triangle thin. Pay attention to the size of it in relation to this Teen Titans Go character's head.
Step 4: Under that, draw another small, triangle-like shape as a guide for the lower part of the torso. This triangle will dictate the shape of Starfire's skirt. The top of this triangle will be hidden behind the first triangle.
Step 5: Starting on the top, left side of Starfire's body, draw a long, sloping line as a guide for the first arm. At the end of the line, draw a small circle as a guide for the fist. On the right side, draw another long, sloping line with a circle at the end as a guide for the other arm and fist.

source: openbmb/Ultra-FineWeb


UC Davis offers innovative programs and policies that helps balance work-life and cultivates a culture of wellness.
We work to maximize the potential of each individual on campus. Engaging in these resources can help support you year-round and through the changing stages of your life and career.
Wellness encompasses two of the seven aspects of the realm of WorkLife at UC Davis:
 1. Caring for Dependents:
 2. Health and Wellness
 3. Workplace Flexibility
 4. Financial Support for Economic Security
 5. Paid and Unpaid Time Off
 6. Community Involvement
 7. Transforming Organizational Culture
How do we define a life well-lived?
After surveying people in more than 150 countries, partnering with leading economists, psychologists, sociologists and physicians for several years, Gallup News has uncovered five distinct factors of wellbeing that transcend countries and cultures:


cloud bank
Also found in: Dictionary, Thesaurus.
cloud bank
[′klau̇d ‚baŋk]
(meteorology)
A fairly well-defined mass of cloud observed at a distance; covers an appreciable portion of the horizon sky, but does not extend overhead.
cloud bank
A well-defined mass of cloud observed at a distance. It covers an appreciable portion of the sky, but cloud cover does not extend to the overhead position.
References in periodicals archive ?
The tops of a cloud bank glow with the light of the moon.
Above, the air war continues as the Internet expands, widening the skies as new cloud banks of applications appear every day.
A westbound trip on Hawaii's Kona-Kohala Coast on a sun-kissed day takes you into lazy, low-hanging cloud banks.
We enjoy watching Fourth of July fireworks turn the cloud banks red, white, and blue.
The researchers point out that global warming is forecasted to push cloud banks higher up the mountains, with a 1-2[degrees]C temperature rise likely to raise the height of the cloud layer by 100-200 m.
Among the Saintongeais peasantry, the association of malevolent cures with devastating storms produced the indigenous phrase "priests' shanks" (jambes de pretres) to describe rays of sunlight shining through thick, lowering cloud banks.
It also ignores the fact that if a smart weapon has only so-so accuracy under ideal conditions, performance is unlikely to improve in cloud banks.
When cloud banks glide over the water's surface and change the color from azure to emerald green, one can understand why the Indians considered the lake sacred territory,'' he writes.
The Galileo spacecraft that has studied Jupiter and its moons for the past eight years made one last circuit of the giant gas planet before plunging into its thick cloud banks at almost 108,000mph.
Galileo dived into Jupiter's thick cloud banks at almost 108,000mph.


text:
Flickr as a Paintbrush [cartogrammar.com] reveals the recorded colors of our surrounding landscape, both in a physical and cultural sense. In short, Andy Woodruff created a set of geographic heatmaps that represent the average colors of images taken on locations surrounding a specific landmark. In other words, the resulting maps reveal the colors that people on the ground should be looking at.
Technically, these maps are based on the most recent 2,000 photos uploaded to Flickr that were geotagged within a specified bounding box. These were then averaged by hue. As an emergent result, the color red reveals the dominance of brick, while green/yellow colors naturally denote grass and trees. However, some unexpected patterns appear as well, such as blue/purple in the map of Boston.

source: HuggingFaceFW/fineweb-edu


text:
Sometimes businesses need the transfer of ownership; be it LLP of Private Limited Company. There are many reasons for this. There may be statutory requirements because of which one may need to transfer the ownership. For example, if it is not possible to be the owner of more than one business enterprise at the same time.
The willful transfer of ownership is also possible. Meaning, if the owners desire to transfer the ownership, it can be done. Both the LLP and PLC have got a different due procedure that needs to be followed to transfer the ownership.
Transferring of ownership of an LLP
Formation of an LLP takes place with the combination of partners and designated partners. Under the law, it is required to have a minimum of two designated partners. The transfer of ownership will require the agreement to add or remove a partner in LLP and thereby by substituting the current designated partners for the new ones. Once appointed, a partner or a designated partner can be changed, removed or appointed.
Here is the procedure to add or remove partner in LLP:
1. Applying for a digital signature certificate
It is essential for verifying an individual's identity and for signing the form digitally. Submit the following documents for obtaining such a certificate:
- PAN Card of the applicant
- Address proof of the applicant
- Photo of the applicant
- Email Id of the applicant
- Phone number
2. Apply for DIN Number
In the form named DIR-3, the Director Identification Number of the Director will be applied along with the address proof and the identity proof of the applicant.
- After this, all the existing partners of the LLP will call a meeting and pass a resolution to add a designated partner in an LLP.
- The supplementary LLP agreement must be drafted to add a new partner.
- The acceptance of the incoming partner is necessary for writing.
- Filing of Form-4 within 30 days of the appointment is essential.
- After that, filling of form no-3 is essential along with the supplementary and the original LLP agreement within 30 days of entering into a supplementary agreement.
- After this, the name of such new partners reflects and will be on the website in the Ministry of Corporate Affairs.
For a private limited company
For transfer0 of ownership of the company, one has to transfer the shares of the said company or even add or remove a director in the company. Preference is given to the existing shareholders and then to the outsiders.
Steps to transfer Shares of a Private Limited Company
Step1: Going through the articles of association of the company to check that they do not contain any restriction.
Step 2: Obtain the share transfer deed in the prescribed format.
Step 3: Executing the share transfer agreement duly signed by the Transferor and Transferee.
Step4: Stamping of the share transfer agreement is necessary.
Step4: Have a witness sign on the share transfer agreement with his/her name and address.
Step5: Attaching the share certificate with the transfer agreement and delivering the same to the Company.
Step6: Company will a resolution and issue
A comparative outlook of the transfer of ownership between LLP and PLC reveals some essential steps. Moreover, these steps are very necessary to transfer the ownership of either the PLC or the LLP. We can conclude that both the LLP and PLC involve some essential due process. However, it is clear from this study that the transfer of ownership in LLP is a somewhat tedious task in comparison with PLC, many times it involves an additional step of the addition of designated partners.
Furthermore, in LLP, filing of different forms is necessary, unlike in the case of the PLC. Hence, we can conclude that both the processes are different but have the same objective. Both are unique in their way.


text:
13 April 2013
Halfway Bush Primary SchoolDunedin
Halfway Bush Primary used part of the school's field to create an outdoor educational space surrounded in native trees and plants.
A reading area was established along with an edible garden where the students can gain hands-on knowledge of native fauna and flora including fruit, vegetables and herbs.
A specially designed bird watching area was constructed for the students to learn about the different species of birds.


How to Create a Ubuntu Packer Image and Deploy on a Bare Metal Server
How to Create a Ubuntu Packer Image and Deploy on a Bare Metal Server
Chitrabasu Khare
Chitrabasu Khare
Apr 27th, 2021
In this blog post, we will discuss how you can create a minimalistic raw Ubuntu image using Packer and then deploy it on a bare-metal server using the provisioning engine, Tinkerbell. Let's get started!
What is Packer?
Packer by HashiCorp is an awesome tool to create pre-configured machine images which can be directly used to create an instance. This should not be seen as a replacement for other configuration tools like Ansible, Chef etc. Instead, you can use the same tools to pre-configure your image, and with Packer, you can automate the management of your machine images like pushing to an image repository or ensuring your CI pipelines have updated image. Packer also helps you to create parallel builds, i.e you can create multiple images for different platforms using a single template. This enables you to ensure changes in your applications can be tested on multiple platforms simultaneously. It can also be seen as a factor to reduce the parity between developer and production builds.
How to create a Ubuntu Packer machine image?
A Packer template can be defined using a set of constructs and each of these constructs has a separate role in creating a machine image. Currently, Packer does not officially provide a way to make bare metal machine images. So, in this example, we will use virtualbox-iso builder to create a Virtual Machine Disk (VDMK) and then convert it to a raw image. This raw image can then used to deploy an OS on a bare metal server. For our use case, we will manage the deployment using Tinkerbell.
Preseed and config files for Ubuntu 20.04
When building an image using virtualbox-iso, the preseed file will help with automating the deployment. While the config file will have the configuration under constructs on how to build the machine image. You may notice that the config references the location of the preseed file in the boot_command list of the builders object.
The files will need to be placed in the directory structure of the Packer image builder.
ubuntu_packer_image
├── http
│ └── preseed.cfg
└── config.json
Below are the preseed file and the config file for creating a minimalistic Ubuntu 20.04 image.
 - pressed.cfg
choose-mirror-bin mirror/http/proxy string
d-i base-installer/kernel/override-image string linux-server
d-i clock-setup/utc boolean true
d-i clock-setup/utc-auto boolean true
d-i finish-install/reboot_in_progress note
d-i grub-installer/only_debian boolean true
d-i grub-installer/with_other_os boolean true
d-i partman-auto/disk string /dev/sda
d-i partman-auto-lvm/guided_size string max
d-i partman-auto/choose_recipe select atomic
d-i partman-auto/method string lvm
d-i partman-lvm/confirm boolean true
d-i partman-lvm/confirm boolean true
d-i partman-lvm/confirm_nooverwrite boolean true
d-i partman-lvm/device_remove_lvm boolean true
d-i partman/choose_partition select finish
d-i partman/confirm boolean true
d-i partman/confirm_nooverwrite boolean true
d-i partman/confirm_write_new_label boolean true
d-i pkgsel/include string openssh-server cryptsetup build-essential libssl-dev libreadline-dev zlib1g-dev linux-source dkms nfs-common docker-compose
d-i pkgsel/install-language-support boolean false
d-i pkgsel/update-policy select none
d-i pkgsel/upgrade select full-upgrade
d-i time/zone string UTC
tasksel tasksel/first multiselect standard, ubuntu-server
d-i console-setup/ask_detect boolean false
d-i keyboard-configuration/layoutcode string us
d-i keyboard-configuration/modelcode string pc105
d-i debian-installer/locale string en_US.UTF-8
# Create vagrant user account.
d-i passwd/user-fullname string vagrant
d-i passwd/username string vagrant
d-i passwd/user-password password vagrant
d-i passwd/user-password-again password vagrant
d-i user-setup/allow-password-weak boolean true
d-i user-setup/encrypt-home boolean false
d-i passwd/user-default-groups vagrant sudo
d-i passwd/user-uid string 900
In the config file, the builder type is set to virtualbox-iso to generate the VMDK and the post-processor type is set to compress to generate a tar file.
 - config.json
{
 "builders": [
 {
 "boot_command": [
 "<esc><wait>",
 "<esc><wait>",
 "<enter><wait>",
 "/install/vmlinuz<wait>",
 " initrd=/install/initrd.gz",
 " auto-install/enable=true",
 " debconf/priority=critical",
 " netcfg/get_domain=vm<wait>",
 " netcfg/get_hostname=vagrant<wait>",
 " grub-installer/bootdev=/dev/sda<wait>",
 " preseed/url=http://:/preseed.cfg<wait>",
 " -- <wait>",
 "<enter><wait>"
 ],
 "boot_wait": "10s",
 "guest_os_type": "ubuntu-64",
 "guest_additions_mode": "disable",
 "disk_size": 8192,
 "http_directory": "http",
 "iso_urls": [
 "ubuntu-18.04.5-server-amd64.iso",
 "_URL_
 ],
 "iso_checksum": "sha256:8c5fc24894394035402f66f3824beb7234b757dd2b5531379cb310cedfdf0996",
 "shutdown_command": "echo 'vagrant' | sudo -S shutdown -P now",
 "ssh_password": "vagrant",
 "ssh_username": "vagrant",
 "ssh_wait_timeout": "10000s",
 "type": "virtualbox-iso",
 "vm_name": "packer-ubuntu-64-20-04"
 }
 ],
 "post-processors": [
 {
 "type": "compress",
 "compression_level": 9,
 "output": "test.tar",
 "keep_input_artifact": true
 }
 ]
}
Both files are reference files, if you wish to modify something, you can make the changes accordingly. The steps to generate the image will remain the same.
Generating the VMDK
Run packer build to generate the VMDK and tar file.
PACKER_LOG=1 packer build config.json
Setting PACKER_LOG will allow you to see the logs of the Packer build step.
When you run packer build with the example config file, the VMDK will be inside the output directory, while tar will be at the root directory.
Converting the image
Currently, the raw image can not be built directly from the virtualbox-iso builder, so we will convert and then compress it. Please note, If you are using the qemu builder type instead of the virtualbox-iso builder, then you can skip the conversion step as Packer lets you directly create a raw image.
First, get the qemu-img CLI tool.
apt-get install -y qemu-utils
Then use the tool to convert the VMDK into a raw filesystem.
qemu-img convert -f vmdk -o raw output-virtualbox-iso/packer-ubuntu-64-20.04-disk001.vmdk test_packer.raw
Once you have a raw filesystem image, you can compress the raw image.
gzip test_packer.raw
The result is a test_packer.raw.gz file which can now be deployed via Tinkerbell. You can also use the raw file test_


- The Solar Journey
Episode #004 - Christian Breyer
Episode #004 with Torsten Brammer & Christian Breyer:
Our guest in episode #004 of The Solar Journey is Christian Breyer. Christian is a professor of solar economy at the renowned finlandian LUT University. Prior to engaging in world-changing research, and publishing more than 250 scientific papers and 20 books and book chapters, Christian worked at Q-Cells in various roles in R&D and the market development department.
Christian is a co-founder of Energy Watch Group which regularly publishes cutting edge research about the energy future of our society. As part of his roles, he co-authors the "Global Energy System Based on 100% Renewable Energy" report. In this extensive report, it is clearly stated that a transition to 100% renewable energy is feasible with current technologies and most likely we, as a society, will even save money if we do it!
If you want to connect with Christian Breyer you can find him on LinkedIn.
Show Notes:
Interesting points covered in this episode for those of us on our own Solar Journey):
 - Hear an innovative approach to shift the corporate culture of established utility companies.
 - How did Christian make a move from a tax advisor to physicist and then professor of the solar economy?
 - What opportunities lead Christian to Finland, of all places, considering Finland doesn't have a lot of sun?
 - Hear some insights into the manmade nature of global warming.
 - Climate change is more dangerous than COVID-19: Why does humanity struggle with recognizing its threat?
 - What are the required resources to compute his hallmark 100% renewable energy model with 50M variables and 50M constraints in a stable way?
 - Hear a discussion of the three key scenarios on how to get to a 100% sustainable energy system.
 - Learn the number of installed solar Gigawatts required to run a 100% sustainable global economy.
 - How reliable is the IEA Global Energy Outlook?
 - What is the outline of a pathway to a sustainable aviation industry?
 - Who has to make the call to get all of us on the path towards a sustainable future and ensure our survival?
[00:00:03.430] - Torsten
OK. So welcome, everybody, to a new episode of The Solar Journey. Today we have Christian Breyer as our guest, welcome Christian.
[00:00:16.930] - Christian
It's a pleasure to discuss with you, Torsten.
[00:00:20.380] - Torsten
So let me just briefly introduce Christian. So he's currently a professor of solar economy in Finland. He's with the Lappeenranta-Lahdi University of Technology, in short, LUT. And he focuses on research and teaching solar economy. Energy scenarios and their market mechanisms. And before that, he was a managing director and scientific director of the ReinerLemoine Institut in Germany in Berlin. And this institute does research on how mankind can get to 100 percent renewables. And how we can manage the energy transition. He holds a Ph.D. on economics of hybrid photovoltaic power plants.
[00:01:10.850] - Torsten
He also worked in the solar industry, as in the R&D and Market Development Department of Q-Cells a former and still world market leader in solar cell manufacturing and solar plant engineering. This is actually where we met, Christian. When was that? Few years ago, 2000?
[00:01:30.410] - Christian
Well, roughly 10 years ago from now.
[00:01:34.790] - Torsten
And he's on top of that. A co-founder of the DESERTEC Foundation engaged in the photovoltaic power systems program of the International Energy Agency.
[00:01:46.790] - Torsten
And the chairman of, for renewable energy of the energy watch group. And he has published more than 250 scientific papers and about 20 books or book chapters, major reports and also coal editor and contributor. So, again, a warm welcome Christian. I personally, I would call you the Oracle for the future of renewables in Europe. I don't know about the world, but possibly also that.
[00:02:22.950] - Torsten
I don't know anyone who's got that. Focus on the subject, of the solar economy. Who in the world would you regard as working on your eye level? And who would you admire for that kind of research you also do? Who do you look up to in your area?
[00:02:44.910] - Christian
To be honest, as a researcher, you always work or you overstand on the shoulders of the Giants before you. And as a researcher then you in the very end, you add a small piece of insight to what had been all available. But maybe answering your question in more detail, I would take a kind of a broader perspective cause nowadays, it's easy to be for a sustainable world. However, where did this really... the real triumph started?
[00:03:21.300] - Christian
It had been a complete, different world. Just think back to the 1960s when Rachel Carson wrote a book called The Silent Spring, where finally all the birds died due to chemicals all around, OK. Nowadays, we, accelerate the process with dying insects and due to that huge loss of birds. But that was a kind of initial step to get huge nongovernmental organizations like Greenpeace and others in the consequence founded.
[00:03:54.480] - Christian
So these are the real giants or then in the 70s. Was the Club of Rome the limits to growth? So where we really understood for the first time, we cannot go for an ever lasting exponential growth. And maybe that's then a follow up question. What does it mean for renewables? But now, coming closer to solar economy, the first to really catch down what solar economy means was Hermann Scheer, finally, a politician with background in social sciences.
[00:04:24.210] - Christian
He wrote a book. Now, more than 20 years ago, and in the English version, the title of the book is Solar Economy. And it was really catched down what it really means. But to be honest, the real triumph from the scientific point of view had been the person practically no one knows it. Bent Sörensen. He is from Denmark and he published in the mid 70s, the first one hundred percent renewable energy research article in a full analytical way, though.
[00:04:57.170] - Christian
And even in the 90s, 1990s. Such analysis for the entire growth. And it took more than fifteen years that a second researcher re-did the job.
[00:05:10.950] - Christian
So he was obviously half a generation or even more than that ahead of the rest of the planet. Another real giant, what we nowadays do is just to do it better. What already exists!
[00:05:24.510] - Torsten
Yeah. Interesting. Interesting. So Solar Economy, Hermann Scheer you think. Chiseled that name. He defined the time of the Department of Research or activity as the first person.
[00:05:42.130] - Christian
Yeah to be honest, it's not only research, in the social sciences or in psychology. We know that in the very end, you have only a few persons defining a new field and they have maybe a visionary power with new ideas. And if these ideas are really good, then others maybe will understand that and then follow them and then spread the idea to society. And without such visionary power, there are no followers. And obviously, Hermann Scheer had been one of the very first really thinking on that.
[00:06:21.720] - Christian
I would not say that everything is 100 percent perfect. What he ever said. I'm far from that. But the core of everything is great. But of course, this is just the visionary power to get started. At the end, of course, it has to be elaborated. It has to be discussed in the societal discourse that really a broad society with various stakeholders can check it from their individual perspective so that finally it's a kind of a societal commonsense to get it executed, a kind of a transition in society.
[00:06:53.250] - Torsten
And of course, we should not forget to mention such giants like Hans Joseph Fell, who finally together with Hermann Scheer in Germany 20 years ago, by the way, roughly 20 years ago, now and introduced the feed-in tariff law in Germany, which was a copy paste law for more than 100 countries, and spreading renewables around the planet on a very clever, innovative idea and innovative idea is we have a simple law in the beginning, a simple law.
[00:07:23.220] - Christian
Then it was destroyed later on by opponents. But anyway, a simple law that everyone can contribute to a revolution to get a sustainable energy system. And I think this is a great invention from a political field, from a societal point of view, and finally also from a legal point of view, because it enables everyone to be part of the energy revolution, not only the usual suspects like large utility companies or others.
[00:07:51.240] - Torsten
Excellent let me come. Thanks a lot


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text:
THE University of Sydney has joined forces with technology commercialisation firm Hazer Group to scale up the Hazer Process, which produces hydrogen and graphite from natural gas.
Sydney's Laboratory of Sustainable Technologies (LST) will be the main collaboration partner, and was selected due to its expertise in graphite, nanomaterials and the hydrogen economy. The lab's facilities are ideally suited for the scaleup work, which aims to increase production by 100 times, to kilogrammes per day.
The Hazer Process was developed by researchers at the University of Western Australia (UWA), and the Hazer Group was assigned the intellectual property rights for commercial development. The proprietary Hazer Process uses natural gas and similar feedstocks, and reacts the feedstock over an iron ore process catalyst, to make 'clean' hydrogen and high purity, crystalline, synthetic graphite.
Hazer believes that once commercialised, the hydrogen and synthetic graphite could in fact be lower in cost than the natural commodities, due to the low-cost starting materials and production costs. In addition, the CO2 emissions are "negligible", which would allow Hazer to tap into the growing clean energy market for hydrogen. The exact morphology of the graphite produced can be tailored through the process, which Hazer says will allow it to target multiple end users and specialised markets.
Hazer's chief technical officer Andrew Cornejo will move to LST to work with two specially appointed full-time university researchers on the project. Hazer will fund the development work. The new project will also include work to characterise and analyse the graphite produced to determine the optimum conditions to produce different graphite morphologies.
The collaboration is expected to be formalised within the next six weeks.
Catch up on the latest news, views and jobs from The Chemical Engineer. Below are the four latest issues. View a wider selection of the archive from within the Magazine section of this site.


text:
The eagle is the embodiment of courage, splendor, and freedom. The proud bearing of this example was first done as a model, carved with care and skill by the designer.
These Steuben designs represent the brand's uncompromising excellence in materials, design, and craft. They are being made using fine lead crystal for which Steuben was known.
- Design by Donald Pollard,1975
- Approximately 5.5" L.
- This product is being sold exclusively through The Corning Museum of Glass Shops. All proceeds benefit the educational mission of the museum.


example if Alice must generate 2 $α$-pairs for $(a_1,b_1)$ i $(a_2,b_2)$, and calculation of new pair is based on multiplication respectively by $c1$ i $c2$ so the truth is: $b' = c_1\cdot b_1 + c_2 \cdot b_2 = c_1 (\alpha \cdot a_1) + c_2(\alpha\cdot a_2) = \alpha (c_1\cdot a_1 + c_2\cdot a_2) = \alpha\cdot a'.$
4. The Verifiable Blind Evaluation Protocol
Let's combine all the things we concepts we already presented in order to define verifiable blind evaluation protocol which will "force" Alice to generate "correct" polynomial:
 1. Bob has some homomorphic function $E(x)=x⋅g$. He chooses some value of coefficient $α$. He sends to Alice the values: $E(x)$ : $E(s^0), E(s^1), …, E(s^d)$ (so the values $s^0⋅g, s^1⋅g,…,s^d⋅g$) and also the values of $E(x⋅α)$ – what means exactly: $α⋅(s^0⋅g), α⋅(s^1⋅g),…, α⋅(s^d⋅g)$
 2. Alice has some polynomial $P(x)$ degree of $d$. She calculates $a= E(P(s)) = P(s)⋅g$ and $b=α⋅E(P(s)) = α⋅P(s)⋅g$. She can do it because values calculated by her are linear combinations of Bob's values of homomorphic function (algorithm from point 2 – blind evaluation).
 3. Bob verifies if true is the equation $b=α⋅a$ and accepts only if so.
Using the blind evaluation protocol and KCA we proposed the algorithm which allows to verify the correctness of Alice's polynomial. In given way Alice can provide to Bob the value $E(P(s))$ not knowing the $s$ and Bob can verify if it's correct. In that moment correct polynomial means: having expected degree.
The mechanisms we now learned already allows us to define the zk-SNARK protocol. The goal is allowing to prove some statements and then to verify them. The statement in that meaning is some kind of math formula. The prover side presenting the proof would like to indeed prove that can solve the formula however the verifier side has to be able to verify the proof without knowing the formula solution. Let's present then the important zk-SNARK problem: how to present the formulas (statements) in some generic way – giving the possibility to define any statement as a formula?
5. Quadratic Arithmetic Program
QAP is general method for presenting the statement which should be proved with zero knowledge. The statement written in QAP gives the possibility to decompose it to polynomials for whose it's easy to find the solution. In other words: we have possibility to define statements to prove in some QAP form for which we can easy verify if the solution is correct.
It's worth to mention that the statement to prove with zk-SNARK algorithm should already be polynomial. QAP is not the method to translate the statement implemented in some programming language to the polynomial form (e.g. the program which implements the function $C(x,y)$, which proves that Alice knows the value $x$ for which the hash is $y$, so $C(x,y) == true$). QAP is the method to translate statement to prove which are already in form of polynomial (so in practice the program code already presented in form of polynomial) to QAP polynomials form. It's generic method – algorithm to transform statements to prove to some required form, which thanks to algebraic transformations and homomorphic function will later be used to implement concrete zk-SNARK functions (for proving and verifying the proofs).
6. Pinocchio Protocol
Using QAP and taking all the previously described features we can propose given mechanism: Alice can prove to Bob that she knows the solution of $(c1⋅c2)⋅(c1+c3)=7$ (some example polynomial) what means that she knows c1, c2, c3 and she doesn't need to discolose these values in order to prove it to Bob. Protocol (called Pinocchio Protocol) of proceeding given scenario is given:
 1. The statement polynomial $(c1⋅c2)⋅(c1+c3)=7$ presented in QAP form consists of polynomials $P, L, R, O$ which are created by Alice using the solution of the polynomial she knows. If she has the correct solution – she knows such $c1, c2, c3$ for whose $(c1⋅c2)⋅(c1+c3)=7$ and it means that defined polynomials by her also fulfill the equity: $P = L⋅R – O$. Moreover if she knows correct $c1, c2, c3$ she can also define such polynomial $H$ that $P = H⋅T$.
 2. Bob chooses some value of $s$ and sends to Alice the value of $E(T(s))$. The polynomial T is known for Bob because it's also the result of QAP presented statement to prove.
 3. Alice sends back to Bob values: $E(L(s)),E(R(s)),E(O(s)),E(H(s))$
 4. Bob checks if $E(P(s)) = E(T(s)*H(s))$, exactly if $E(L(s)⋅R(s)−O(s))=E(T(s)⋅H(s))$
This protocol gives the possibility to present by Alice the proof of having solution without exposing the solution. Bob can verify the proof on the assumption that Alice returned correct value, expected by Bob.
Above scenario is already good starting point to define general protocol for defining easy to prove statements (using QAP) and verification the solutions of these statements (blind evaluation and QAP). Unfortunately given protocol is still vulnerable: Alice can provide the proof to Bob, however there still not the certainty that she already did it – theoretically she can return the values which Bob will evaluate as correct (in point 4), but these values will not be exactly the "correct" values possessed by Alice.
7. zk-RKS, almost zk-SNARK
Pinocchio Protcol is the base for creating complete zero proof knowledge algorithm. In order to get complete zk-SNARK protocol we need to solve few issues yet.
7.1 Problem: Bob must have correct homomorphic function E
Correct means the one which supports multiplication. Previously we didn't introduce any concrete function. The solution of that problem is using the homomorphic function based on ecliptic curves.
7.2 Problem: Alice must generate correct polynomials – having correct degree and be based on the correct solution of the statement to prove
This is the problem we deal from the beginning. In the Pinocchio Protocol Alice generates the polynomials $P, L, R, O$ using own solution. The protocol allows Bob to verify if Alice has the correct QAP solution, so she has the solution for the statement to prove. However Bob has to sure that Alice really provided correct QAP solution based on the statement solution.
Solving this problem in practice is possible by using the characteristics of QAP. Presenting the statement in QAP form allows to verify the solution. Using also homomorphic function adds the possibility to "hide" the real value. This is what was done in Pinocchio Protocol. Mixing above with mechanics of linear combinations allows also the real verification of statements in QAP. Let's define the group of polynomials $Fi$ which are the result of combination polynomials $L, R, O$ with the QAP solution. Bob can ask Alice for proving him that Alice can write $F(s)$ – it's the result of combining many $Fi$ values. This proof will allow Bob to verify that Alice indeed uses real solution of the QAP and the real solution of the statement. Now we have complete zero-proof-knowledge.
8. Complete zk-SNARK
The Pinocchio Protocol with the fixes included in point 7 so far is zk-RKS (Zero Knowledge Argument Of Knowledge). It means that we can already define zero knowledge proofs and verify them, however the process is not yet fast enough and still requires interaction between participants (too complex and too long interaction).
How to make it zk-SNARK (Zero Knowledge Succinct Non Interactive Argument of Knowledge)? How to reduce the required amount of interactions between participants, reduce it single message between verifier and prover? The solution of that is simply based on removing the necessity of sending by Bob values to Alice which are required by her to generate the proof.
Creating complete zk-SNARK is simple: required values can prepare and set in the protocol (CRS). In other words implementation of zk


text:
Electric heaters are considered one of the most commonly popular types of electronic appliance that is available in almost every household.
It has its significant use in cold climate areas where you need hot water for a variety of purposes. In today's article, we will discuss what size Breaker is recommended to use for an electric heater.
Electric heater breaker size
It is important to use the right-sized breaker for your household electronic appliances because a wrong breaker can cause damage to the circuits and lead to burning. People choose breaker sizes for 220/240V breakers. The ideal breaker size for an electric water heater should be a 20 amps breaker.
If you are living in a cold climate area, having an electric heater for you is a must. The electric heater is considered one of the most commonly used electric appliance that almost every household have.
These electric heaters can provide you with a form of radiant heat that will help you to provide natural air to change its temperature and circulate heat into a room. But before installing the electric heater, you need to determine the breaker size for it.
It is important to determine the size of the breaker for running an electric heater because the wrong sized breaker can damage the electric circuits and can even lead to burning.
In addition to that, the installation of a breaker for an electric heater is considered an advanced household electrical project, which should be done by a proper electrician or heating contractor.
They have a better idea and mind which size heater is important for your house. Depending on that, they will provide you with the proper consultancy of using the right sized breaker for your house.
In most cases, the electric heaters are powered by a 120- or 240-Volt circuit. However, the electricians recommend using 240 Volt circuits to run the electric heaters because it will help them to use lower amperage to become more energy efficient.
Generally, when you determine the breaker size for your electric heater, you need to know the wattage consumption of your electric heater.
In addition to that, if you use a slightly larger breaker compared to the amperage value of an electric heater, it will not interfere with the other appliances running in the circuit.
That is why it is highly recommended to use a 20 amps breaker for a 1500 watts electric heater to run the appliance properly along with the other appliances available in the house.
Below is a brief discussion on the breaker size for different types of electric heaters:
Electric water heater:
Generally, the electric water heater is one of the most common appliances that people tend to have in their house. To run an electric water heater in a 240 Volt dedicated circuit, you need to use a 30-amp double pole breaker.
Electric baseboard heater:
In most cases, the electric baseboard heaters require 240 Volt circuits. To run the electric baseboard heater efficiently using 240 Volt circuits, you need to use a 20- or 30-amp double pole circuit breaker.
Electric garage heater:
Generally, the wattage consumption value of an electric garage heater should be around 4000 watts. Considering that you can use a 20 amps electric circuit breaker to run your electric garage heater efficiently.
How many amps does a 1500w electric heater draw?
As there are several types of electric heaters available to use for a variety of purposes, they have different voltage consumption values. One of the common electric heaters that are used in the most household has a wattage value of 1500 watts.
In addition to that, it is very easy to run a 1500-Watt electric heater on a 120 Volt circuit. A 1500-Watt electric heater requires a breaker of 15.6 amps.
Considering that a 15-amp breaker would be small for the electric heater to operate, that is why it is ideal if you can choose a 20 amps breaker for the electric heater to operate properly.
It is always recommended to go for a slightly large-sized breaker compared to the amperage value of an electric heater because it will enable the electric heater to run properly.
In some cases, it is ideal and efficient to use a slightly large breaker for the electric heater, because if you replace the electric heater with a more powerful one, it will require a higher voltage-consuming electric circuit breaker to run properly.
How many heaters can you run on a 20 amps breaker?
How many electric heaters you can run with a 20 amps electric breaker depends on the wattage consumption of the heater. Generally, electric heaters are available in many different sizes based on the purpose of functionality.
You can either have a garage electric heater or a baseboard electric heater for your house. They do not have the same type of wattage consumption.
That is why to determine how many heaters you can run on a 20 amps breaker; you need to figure out the voltage consumption value that can be provided using a 20 amps breaker.
Generally, a 20 amps breaker can run a combination of electric heaters that have a wattage value of 3840 watts.
So, you can make a combination of multiple electric heaters to run on a 20 amps breaker. That is why, if you want to use one thermostat, you can install two 1500 Watts heaters or three 1000 Watts heaters.
3 factors that determine breaker size for the electric heater
It is important to determine the breaker size for the electric heater that you use regularly to meet your needs. Generally, the electric heater is considered a commonly used household appliance that most people have in their house.
Different types of electric heaters are used for a variety of purposes. Considering that, they have different power consumption rates. Generally, the power consumption of an electric heater is determined by the wattage consumption value.
As there are different types of electric heaters available, they have different wattage consumption values. So, it is important to determine a few things before choosing the right sized breaker for your electric heater.
Having a wrong sized-electric heater can cause damage to the circuit and can even lead to burning.
That is why you should be very careful when determining the size of the breaker for the electric heater. Below is a brief discussion on a few factors that determine the size of the breaker for an electric heater:
Type of heater:
Generally, different types of electric heaters are used for a variety of purposes. Based on that, the breaker sizes may differ.
It is important to install a breaker based on determining the wattage consumption of an electric heater. So, this will help you to figure out the size of the breaker that will enable the other appliances to run efficiently.
Most breakers are compatible with 120- or 240-volt circuits. So, you need to determine the circuit size as well before you choose the right sized breaker for the electric heaters.
How do determine breaker size for an electric heater?
Determining the breaker size for an electric heater is important because it will enable the heater to run efficiently and properly along with the other appliances in the house.
It is important to determine the electric circuit breaker for the heater because having a wrong-sized breaker can cause the circuit to get significantly damaged and even lead to burning.
That is why you should be very careful when determining the breaker size for an electric heater. There are several types of electric heaters in the market that are used for a variety of purposes.
Based on that, you should choose the right sized electric circuit breaker for the heaters. In addition to that, it is important to follow the National Electric Code when choosing the breakers for your electric heater.
You can simply follow the easy, simple steps below to determine the breaker size for an electric heater:
Follow the NEC rule:
Generally, the NEC or National Electric code recommends that the rating of a circuit breaker should be at least 125% larger than the circuit it controls. That is why you should be careful about the NEC rule.
Apply the current by 125%:
To figure out the right sized circuit breaker for your electric heater, you need to multiply the value of current by 125% to determine the value of the circuit breaker that is required to run the electric heater.
Use a slightly larger breaker:
Suppose you're using a 1500 watts electric heater, the amperage value should be 15.6 amps. In that case, you should use a 20 amps breaker.
Several types of electric heaters are used in a household for a variety of purposes. Generally, a standard-sized electric heater should have a power consumption value of 1500 watts. In that case, using a 20 amps breaker will be ideal and efficient for the appliance.


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Installing a JBoss AS 7 module using the CLI

The release 7.2 of JBoss AS introduces the capability to install a module using the Command Line Interface. In this tutorial we will show how you can install a data source as a module using a CLI script.
 Modules are the heart of the new application server release. If you want to install a library as a module, in order to share with your applications, you have to create a directory structure for it and add the module.xml file descriptor and the JAR libraries. See this tutorial for more information about installing a module on your AS 7 file system.
This might be a little lenghty approach or simply it can be you don't have access to the JBoss AS file system. (e.g. a remote server installation). In order to install modules using the CLI, you have to download a JBoss AS 7.2 latest build from Jenkins _URL_
As you can see, once you connect with the CLI (jboss-cli.cmd / jboss-cli.sh) some new commands are available, by pressing the tab key.
jboss as 7 module cli
The command we will use is "module" and you need to provide three arguments: the module name, the resources (JAR files) and the dependencies used. Optionally you can add a module slot, in case your module uses several different implementations.
Here's the script for creating a MySQL module (line 1) + driver (line 2) + data source (line 3).
module add --name=org.mysql --resources=mysql-connector-java-5.1.18-bin.jar --dependencies=javax.api,javax.transaction.api

/subsystem=datasources/jdbc-driver=mysql:add(driver-module-name=org.mysql,driver-name=mysql,driver-class-name=com.mysql.jdbc.Driver)

/subsystem=datasources/data-source=MySQLDS:add(jndi-name=java:jboss/datasources/MySQLDS, driver-name=mysql, connection-url=jdbc:mysql://localhost:3306/as7development,user-name=root,password=admin)
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The Russellville Police Department was not always a Police Department. The City of Russellville was incorporated in 1870 and officially recognized as a town. The city grew in large part to the railroad and coal mining industry in the 1800's. The center of the mining was in the City of Dover area. The coal would be transported to Russellville to be shipped by train. Dover was the original county seat but due to the importance of the railroad and expanding population of Russellville the county seat was moved to Russellville.
During this time the first Russellville law enforcement officer entered the scene. This first officer was referred to as the "The City Marshall". The position was an elected post and a one-man job. The City Marshall was responsible for 'controlling the criminal element, collecting fines or writs, to suppress all riots and disturbances and breaches of peace.' The original method of payment at the time was based on your job performance. The Marshall received as payment $0.75 for each warrant served, criminal taken to jail, summoning each jury before the mayor, and $0.25 for summoning each witness, and $0.50 for mileage in serving.
The transition from a City Marshall service to a Police service date is unknown at this time. However, we do know that there was a Russellville Police Force in 1941. In 1941 the Russellville Police Department consisted of three officers. The Police Chief at the time was Chief Cecil McCarley and he had a 24-year tenure as the Chief of Police. He retired in 1964 and the department had increased in size to an eight-man department.
The department slowly grew through the 70's and 80's in response to the expanding Russellville city limits. In 1982, the police department was a sixteen-man department with two detectives and dispatch center with dispatchers.
The current department now employs 57 sworn full-time officers and a support staff of 6 civilians. The department is housed at 115 West H Street, Russellville, AR and is excited about the future of the City and its potential growth. The department will rise to meet the needs of the citizens of Russellville and continue the time-honored tradition of "Serving Our Community."
RPD History 1RPD History 2


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This is a broad question so for simplicity I will use Seal of Fire and Naturalize.
Scenario 1: Common exchangecreating a baseline.
 - Player A uses Naturalize on Seal of Fire
 - Player B Sacrifices SoF in response. SoF is highest on the stack and goes off first.
 - This leaves Naturalize without a valid target.
Scenario 2: Complicated exchangeIs this legal?
 - Player B Sacrifices SoF.
 - In response Player A targets it with Naturalize.
 - SoF is on the stack and it's ability has not resolved. Player B (as above) sacrifices SoF in response to the Naturalize.
Can Seal of Fire be placed back on the stack by re-activating its ability, potentially with a new target?
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2 Answers 2
No, your second example is not possible using the game rules.
Player A cannot target SoF with Naturalize, because it is currently in the graveyard. If they wanted to target the SoF, they need to do so when they had priority. Player A cannot prevent the SoF from being sacrificed for its ability anyway, since the ability exists independently of the source that created it. Seal of Fire says, "Sacrifice Seal of Fire: Seal of Fire deals 2 damage to target creature or player." It is an activate ability whose [Cost] is "Sacrifice Seal of Fire." If Player B paid the cost to activate SoF, it would no longer be on the battlefield by the time the Active Player received priority.
112.3b Activated abilities have a cost and an effect. They are written as "[Cost]: [Effect.] [Activation instructions (if any).]" A player may activate such an ability whenever he or she has priority. Doing so puts it on the stack, where it remains until it's countered, it resolves, or it otherwise leaves the stack. See rule 602, "Activating Activated Abilities."
116.1. Unless a spell or ability is instructing a player to take an action, which player can take actions at any given time is determined by a system of priority. The player with priority may cast spells, activate abilities, and take special actions.
 - It is not possible to sacrifice a permanent twice. After you sacrifice a permanent, it is placed into its owner's graveyard.
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I was under the impression that because the ability had not resolved, as it was interrupted by the naturalize, it was placed on the stack before the card reached the graveyard. – Stormchild Mar 3 '12 at 19:29
_USER_ You pay all costs at the time you activate an ability (i.e. put it on the stack). The actions you take as part of paying costs don't use the stack. – Alex P Mar 3 '12 at 20:14
To put Alex's comment another way, the card goes to the graveyard at the same time as the ability is first placed on the stack. There is no opportunity for you or your opponent to do anything between the ability being placed on the stack and the moving of the Seal to the graveyard. The casting of Naturalize happens well after both of those actions. – David Z Mar 4 '12 at 7:46
user1873 is right. Scenario 2 is not legal since the sacrificing is a cost. To try to it clarify further: If Seal of Fire instead did "T: Destroy ~this~ and deal 2 damage to target player" it would still deal 2 damage to the player if you destroyed it before the ability resolved.
112.7a Once activated or triggered, an ability exists on the stack independently of its source. Destruction or removal of the source after that time won't affect the ability. Note that some abilities cause a source to do something (for example, "Prodigal Sorcerer deals 1 damage to target creature or player") rather than the ability doing anything directly. In these cases, any activated or triggered ability that references information about the source because the effect needs to be divided checks that information when the ability is put onto the stack. Otherwise, it will check that information when it resolves. In both instances, if the source is no longer in the zone it's expected to be in at that time, its last known information is used. The source can still perform the action even though it no longer exists.
A common analogy is that of a soldier throwing a grenade at you. Shooting the soldier after he has thrown the grenade won't prevent the grenade from killing you
The only way you can stop it is either counter the ability (Stifle) or prevent it from fulfill other restrictions like destroying mountains for Valakut, the molten pinnacle's land limit.
Credit: _URL_
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Your Answer


Sun Java System Web Server 7.0 Update 4 NSAPI Developer's Guide
Installing the AddLog() Example
To load the shared object containing your functions, add the following directive in the Init section of the magnus.conf file:
Init fn=load-modules
To call brief-init to open the log file, add the following code to the Init section in magnus.conf. This line must come after the one that loads the library containing brief-init.
Init fn=brief-init
AddLog fn=brief-log
The source code for this example is in addlog.c file in the install-dir/samples/nsapi directory.


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Let $M$ and $N$ be two smooth manifolds, and $f: M \to N$ be a submersion, ${{f}^{-1}}(y)$ is compact for all $y$ in $N$. Then prove for any $x$ in $N$ there is an open neighborhood $U$ of $x$ such that ${{f}^{-1}}(U)$ is diffeomorphic to $U\times {{f}^{-1}}(x)$. I've thought this problem for a long time, but I don't know to use which method. Cobordism can help to solve this question?
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I don't see how cobordism would help. I would try using the implicit function theorem instead. – Neal Feb 23 '12 at 14:10
show that $f$ is proper and look at en.wikipedia.org/wiki/Ehresmann%27s_fibration_theorem – Blah Feb 23 '12 at 16:59
You are missing some hypothesis to conclude that $f$ is proper. For example, without any additional hypothesis, we have a counterexample $M=(0,2)$, $N=S^1$ (the unit circle in the complex plane), and $f(t)=e^{2\pi i t}$. – Marcos Cossarini Apr 28 '14 at 0:27
1 Answer 1
As Blah said in the comments, if we can show that $f$ is proper (and in fact it is!), your statement is just Ehresmann fibration theorem.
To give a proof of Ehresmann fibration theorem, we will use theorem of tubular neighborhoods. This result says that a neighborhood $W$ of $M_y := f^{-1}(y)$ in $M$ is diffeomorphic to a neighborhood of $M_y$ in its normal bundle, and in particular that there exists a differentiable retraction $r : W \to M_y$. But then, consider the map $$(r,f):W \to M_y \times N.$$ This map has a differential (which is invertible along $M_y$). As $M_y$ is compact, there exists an open set $W' \subset W$ containing $M_y$ such that $(r,f)_{|W'}$ is an embedding. Finally, as $f$ is proper, $W'$ contains an open set $W''$ of the form $f^{-1}(U)$, where $U \subset N$ is a neighborhood of $y$. Then clearly $(r,f)(W'') = M_y \times U$ and we have shown that $(r,f)$ is a diffeomorphism from $f^{-1}(U)$ to $M_y \times U$.
share|improve this answer
@ Jacob:Thanks!But I'll make a completment.I've seen somewhere that ${{f}^{-1}}(x)\ and\ {{f}^{-1}}(y)$ is also diffeomorphism.This is a stronger conclusion.How can we get this? – henry Feb 24 '12 at 17:04
This is the link:link – henry Feb 24 '12 at 17:15
I've just responded you here. math.stackexchange.com/questions/47373/… – Jacob Ikabruob Feb 24 '12 at 17:36
@ Jacob: Thank you!I've understood.But where have you learnt these beautiful theorem like Ehresmann fibration theorem?Can you recommended me some modern books about differetial topology?I've read some books which are a little basic that they don't involve some advanced topics. – henry Feb 25 '12 at 3:24
Dear Henry: I read this theorem on Claire Voisin's book "Hodge theory and complex algebraic geometry" chapter $9$, when dealing with family of complex manifolds. By the way, it would be nice if you accept the answer that you consider helpful ;) – Jacob Ikabruob Feb 25 '12 at 8:19
Your Answer


text:
pairs contained in $insert_hash. Values will be automatically qualified according to column datatypes so don't pre-qualify them. For date values, the canonical format is assumed (see qualify()) unless $date_format is specified.
This method is useful because it automagically qualifies each insert value using qualify(). Also, if the table has an integral primary key, and the corresponding key in $insert_hash was not given, a value for will be generated.
MySQL users: This assumes the primary key was declared with AUTO_INCREMENT, so no extra work is done except to pass the newly generated value back in $rv.
Oracle users: The situation described above assumes an Oracle sequence object named SEQ_$table_name has been created. This is the conventional naming scheme so that this feature can be taken advantage of in most cases. E.g., if inserting into table MEMBER, an associated SEQUENCE object named SEQ_MEMBER must also exist. See
In short, you generally don't have to supply a table's primary key if that primary key is a sequenced ID column.
Return the generated pk ID value or -1.2 if there wasn't a value generated (e.g. if the table has a multi-column pk) If there was no data to insert, -1.1 is returned. Return undef if error.
$row = $io->fetch($id_val_or_id_hash,[$key_name]);
Return a row in hashref form (COLUMN_NAME => value pairs). All date values are returned in the canonical format (see DBIx::IO::GenLib).
The row to be fetched is identified depending on the datatype of $id_val_or_id_hash.
If $id_val_or_id_hash is a scalar, the value is used in conjunction with $key_name. $key_name defaults to the table's primary key. If $id_val_or_id_hash is a hash ref it is interpreted as column => value pairs to be AND'ed together in a WHERE clause.
This method assumes that key(s) given form a unique key, so only 1 row is returned.
Oracle users: LOB columns won't be retreived because they aren't supported in DBD::Oracle (as of v1.19). LONG columns seem to work fine though so if you can get away with using a LONG over a LOB, do that. $DBIx::IO::GenLib::LONG_READ_LENGTH gives the limit size of a long that will be returned. If the table is a concrete table (rather than a view, for instance) ROWID will be included as a column with ROWID datatype. You may find this useful for updates and deletes (See also DBIx::IO::GenLib for a ROWID column name constant).
Return undef if error. Return 0 if no row was found.
$rv = $io->delete_by_id($id_value,[$key_name]);
Delete a row where $key_name = $id_value. $key_name defaults to the primary key.
Returns the number of rows deleted or false if error (0 is represented as '0E0' which is true). A maximum of 1 row can be deleted here, it is up to you to make sure that the given key is unique, otherwise unexpected results can occur. See also delete_all().
$rv = delete_all($id_hash);
Delete all rows that satisfy $id_hash, where $id_hash is a hash of COLUMN => value pairs that will be AND'ed together for the WHERE clause of the DELETE statement.
Returns the number of rows affected or false if error (0 is represented as '0E0' which is true). Return -1 if $id_hash is empty or not a reference.
$rv = $io->update_hash($update_hash,$id_val_or_id_hash,[$date_format],[$hint]);
Update a row with name value pairs contained in $update_hash, a hashref of COLUMN_NAME => new_value pairs. Values will be automatically qualified according to column datatypes so don't pre-qualify them. For date values, the canonical format is assumed unless $date_format is specified (see qualify()).
The row(s) to be updated are identified depending on the datatype of $id_val_or_id_hash.
If $id_val_or_id_hash is a scalar, the value is used as the primary key. If $id_val_or_id_hash is a hash ref it is interpreted as COLUMN_NAME => value pairs to be AND'ed together in a WHERE clause.
This method supports driver-specific SQL hints contained in $hint.
Return the number of rows affected or false if error (0 is represented as '0E0' which is true). Return -1 if there was no data to update.
No known bugs.
Reed Sandberg,
Copyright (C) 2000-2008 Reed Sandberg
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
The full text of the license can be found in the LICENSE file included with this module.


text:
Q&A: Inpatient Certification
Q: What elements must be included for inpatient certification?
A: The inpatient certification may be made with a specific separate certification form or constructively through the forms, notes, or records signed by the certifying physician. There are three elements to the certification:
- The reason for continued hospitalization of the patient or the special or unusual services for cost outlier cases
- The estimated time the patient will need to remain in the hospital
- Plans for postdischarge care, if appropriate
For more information, see the Patient Status Training Toolkit for Utilization Review.


text:
Congressional Budget Office Cost Estimate: H.R. 1495, Water Resources Development Act of 2007 [open pdf - 28KB]
This is the Congressional Budget Office (CBO) Cost Estimate as reported by the House Committee on Transportation and Infrastructure on March 15, 2007. From the Summary: "H.R. 1495 would authorize the Army Corps of Engineers (Corps) to conduct water resource studies and undertake specified projects and programs for flood control, inland navigation, shoreline protection, and environmental restoration. The bill would authorize the agency to conduct studies on water resource needs, to complete feasibility studies for specified projects, and to convey ownership of certain federal properties. Finally, the bill would extend, terminate, or modify existing authorizations for various water projects and would authorize new programs to develop water resources and protect the environment."


text:
EXPENSE REPORTING POLICY
Expense Reporting Requires Compliance
With ExpenseVisor, each business expense report can incorporate it's own set of expense reporting policy compliance statements. You can also incorporate company guidelines and your complete travel and entertainment expense reporting handbook online and have it available online for each employee.
The Sarbanes-Oxley Act
Sarbanes-Oxley (SOX) is part of current business for U.S. public corporations. Compliance is essential to maintaining shareholder confidence and avoiding penalties. In the U.S. SOX is the most important corporate governance and disclosure legislation in over 70 years.
Section 404 of the Sarbanes-Oxley Act mandates company management must demonstrate that adequate internal controls exist to ensure compliance in the accuracy of all financial reporting.
How Does ExpenseVisor Help With Expense Policy Compliance?
ExpenseVisor helps regulatory expense reporting policy requirements and reduces your risk of fraud by detecting many erroneous expense entries.
ExpenseVisor does not allow exact duplicate expense reports and exact duplicate expense items are rejected even if entered on different reports.
When ExpenseVisor'sniffs out' similar expense items, users are alerted. If they believe the item is legitimate and submit it for payment, the system will alert your accounting department of the duplication for their review.
Optimized Expense Reporting
The ExpenseVisor experience provides the following as well as options and customizations:
- Mobile and Desktop
- Simplified and intuitive user interface
- Unlimited accounts, projects, vendors, etc
- Receipt imaging via mobile app
- Credit card pre-population
- Currency conversion
- Automated approval paths
- Management reports and graphs
- Business rules for policy enforcement
- Automatic notifications via external emails
- Built-in audit trails
- Seamless integration
How Does ExpenseVisor Limit Risk, Improve Accountability?
ExpenseVisor provides you with the following expense reporting policy benefits and controls:
- Expense allocations based on defaults or option.
- Expense types selected from pre-defined list.
- Automated audit trail of every expense report.
- Expense controlled by spending limits and rules.
- Automatically prompts and requires expense detail.
- Pre-allocation of corporate credit card expenses.
- Requires/allows comments for each expense item.
- Automatically checks for duplicated expenses.
- Receipt rules can be set per expense type.
- Allows for authorized proxy submitters and approvers.
- All corporate policies are highlighted at entry.
- Automated email to approvers and originators.
- Aging parameters alert approvers to timely approvals.
- Optional pre-authorized trip or expense approval.
- Expense reports flagged if rules violated.
- Flexible approval path allows for correct approval routing.
- Expense policies are configurable and easily customized.
- Seamless integration into 3rd party software.
- Expense charged correctly to G/L and business unit.
- Restricts users from selecting incorrect expense types.
- Provides complete history of every expense.
- Flags spending violations.
- Reduces duplicated or mis-allocated expense.
- Capture expense simply and correctly.
- Documents any exceptions to travel policy.
- Prevents reimbursements for duplicated expenses.
- Requires users to certify and include receipts.
- Audit trail records all proxy transactions.
- Ensures users are aware of potential policy violations.
- Reduces processing time and workflow.
- Eliminates slow approval and processing.
- Assures expenses are pre-approved before they occur.
- Approvers act on rules violations.
- Approval paths meet your corporate criteria.
- System customizes to your spending policies.
- Eliminates duplicated work and reduces error.


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StudHumSci_2_93.pdf 758 KB
Relationship between positive-negative affect and performance in a golf competition
The first objective of this study was to investigate the relationship between positive and negative affect at three phases of a golf competition and performance in the competition. The second objective was to investigate the relationship between changes in positive and negative affect during the competition and performance in the competition. Thirty golfers who belonged to university golf clubs participated. The golfers answered the PANAS questionnaire immediately prior to the competition, immediately after the first half 9 holes, and immediately after the latter half 9 holes of the competition. Their performance in the competition was calculated by the mean score of the last 10 rounds of golf minus the score of the competition. Correlation coefficient showed that the performance in the first half 9 holes was significantly related to the positive affect immediately after the first 9 holes (r =.38), and the negative affect immediately after the first 9 holes (r =-.35). In addition, the correlation coefficient between the increased positive affect in the first 9 holes and the performance in the first half 9 holes (r =.46) and that between the increased negative affect in the first 9 holes and the performance in the first half 9 holes (r =-.38) was significant. These findings indicated that the positive and negative affect during a golf competition changed depending on the golfers' performance in the competition.
広島大学大学院総合科学研究科紀要. I, 人間科学研究
Copyright (c) 2006 Graduate School of Integrated Arts and Sciences, Hiroshima University. All rights reserved.


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Samsung second-generation eye mouse significantly enhances ease-of-use for people with disabilities
Samsung Electronics today introduced its second-generation eye mouse that allows people with disabilities to compose and edit documents as well as browse the web through simple eye movement. EYECAN+ is the first of its kind, as it does not require users to wear any device, such as glasses. Instead, EYECAN+ is a single-unit, portable box that sits below the monitor, and works by wirelessly calibrating with the user's eye. EYECAN+ requires the user to be situated between 60cm and 70cm from the monitor, and does not require the user to be in any specific position, as it can be used while seated or lying down.
Calibration is only required for first-time users, as EYECAN+ will remember each user's eye characteristics. Users can also adjust the sensitivity of EYECAN+ for both calibration and actual use. Once calibrated, the EYECAN+ user interface (UI) will appear as a pop-up menu in one of two different modes, rectangular menu board or floating menu wheel, both of which contain 18 different commands. Both menu types can be configured to remain at the fore of the screen. The use of all 18 commands solely requires eye movement and blinking, and each command can be selected by looking directly at the relevant icon and blinking once.
The 18 commands include "copy," "paste" and "select all," as well as "drag and drop," "scroll" and "zoom in." Additional custom commands can also be created to include existing keystroke commands, such as "close program" ("Alt+F4") and "print" ("Ctrl+P"). While Samsung will not commercialize EYECAN+, the company will manufacture a limited quantity to donate to charity organizations. Both the technology and design of EYECAN+ will soon be made open source, and made accessible to companies and organizations that wish to commercialize the eye mouse.


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This post explains how to calibrate two 2Touch screens to work with an extended desktop configuration – where the desktop spans across two display screens, with the Windows task bar in the left-hand screen and an extended working area in the right-hand screen.
Implementing interactive touch for the above configuration requires two units both of which are equipped with both serial and USB communications.
(Note: The other common multiple-screen configuration is the Stretched Desktop.)
Extending the desktop across two monitors is simply achieved in Windows "Display Properties" dialog. Note: both monitors must have the same Screen Resolution settings.
The two touch screens are calibrated separately, one using USB communications and the other using serial communications. We will call the two 2Touch screens "Touch Panel 1" and "Touch Panel 2" respectively.
Calibrating Touch Panel 1
1. Connect the power supply to Touch Panel 1 and then connect the USB cable.
2. Carry out the simple four-point Calibration procedure.
Calibrating Touch Panel 2
1. Install NextWindow's Touch+ Software, making sure you select "Run serial runtime on Windows startup."
2. Locate the Serial Runtime directory.
The default is here:
C:\Program Files\NextWindow\Touch+ #.#.#\Serial Runtime
3. Create a text file called SerialRuntime.ini and enter the following lines:
Note the parameter OffsetX=32767 in the [Main] Section. This pushes the calibration points for the serial connection over to the extended screen.
4. Connect the serial cable from Touch Panel 2 to the computer.
5. Run the SerialConfig program, select [Port Detect] and then click the [Calibration] button to start the Calibration sequence for Touch Panel 2.
This completes the calibration procedure. Now both monitors are touch enabled.


Sex Advice
6 Ways To Use Heat To Banish Painful Sex and Make Pleasure…Hotter
Gabrielle Kassel
Photo: Getty Images/Jena Ardell
Hot. *Fire emoji*. Smokin'. Heat-conjuring words are often called upon to describe good sex, but what if actual heat had a pain-diminishing and pleasure-improving place in the bedroom? According to sex educators, it absolutely can: For vulva-owners who struggle with dyspareunia, or painful sex, heat can prove especially helpful strategy for claiming some real-deal pleasure.
"Heat can ramp up sexual pleasure because it ramps up circulation, which helps prep vaginal tissues and genital nerves for heightened sensation and pleasure," says somatic sex expert, Kiana Reeves sex and community educator with pleasure-product company Foria.
Vulva-owners with tight, aka hypertonic, pelvic floor muscles or vaginismus (painful contractions of the vaginal floor muscles), "may find that heat application helps the muscles soften, instead of keeping the body from fighting penetration," says Reeves. In many cases, she adds, heat application can be the difference between ouch and oooh.
Keep reading for 6 ways you can use heat as a painful sex remedy.
1. Hold a heating pad to your lower abdomen and pubic mound
Cramps—whether from a period or penetrative sex—are essentially aggressive muscle contractions and overactive muscles at work, says Reeves, who adds that the heat can help quell the associated pain. "For vulva-owners who experience cramping after penetration, placing a heating pad on their lower abdomen before, during and/or after can help," says Reeves.
2. Keep it classic with oral sex
Fun fact: Cunnilingus is a free, heat-producing act that can help minimize painful sex. "The heat a partner's mouth creates against your vulva during oral sex is actually enough in some cases to help the pelvic floor muscles relax," says Reeves. It can be called upon to prep the body for penetration or as the main sexual event.
3. Use a stainless steel or glass wand
Both these materials are great for temperature play because they hold heat (and coldness) well. "Warm your wand up under warm water, or let it sit in a bowl of warm water," says sex educator and sex-toy reviewer Indigo Wolfe. When you're ready to use it, press it against the back of your hand or inner lip to test the temperature and, from there, start slow.
"Use it or have your partner use it against your thighs, then pubic mound, then labia," says Wolfe. If you want to explore penetration, wait until your labia are engorged and are firm to the touch, because both are signs of arousal, says Reeves. And for some shopping inspiration, consider the nJoy Eleven, $400 or nJoy Pure Wand, $130.
4. Take a bath
"The warm water will help all your muscles, head-to-toe, relax," says Wolfe. "You even might try making the water a little warmer than you can normally handle to make your non-genital erogenous zones even more sensitive to touch," they say. (Just be mindful not to burn yourself.)
5. Explore vaginal steaming
Reeves says a number of the vulva-owners she's worked with who have hypotonic (or tight) pelvic-floor muscles have found vaginal steaming to be pain-relieving. "Think about the way shower steam relaxes your trap muscles after a longggg day of typing. Vaginal steaming is like that," she says, but just for, you know, your vagina, because the heat brings blood flow to tissues, which trains the muscles to relax.
6. Try CBD lube
While heat-use should never replace lube, Reeves says heat can support the body's natural lubrication process. "The heat draws blood flow to the vaginal tissues, which is part of the arousal response that tells the body to become lubricated," she says.
And while CBD lube is not a warming product itself, it may function similarly to heat application. "The primary benefits of using CBD lube are the same as the primary benefits of heat application: muscle relaxation and circulation promotion," says Reeves. For folks who are wary about (literally) turning up the heat on their vulva, CBD lube is a great alternative, she says. Just keep in mind that many CBD lubes (like Foria's Awaken, $48 and Privy Peach Intimate Oil, $45) are oil-based, meaning, they're not condom-compatible.
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Fido Manual
A file watcher and notification utility
INTRODUCTION
Fido is a highly configurable log watch utility. It can peruse multiple files simultaneously for user defined patterns. It supports extended regular expressions. Fido works in a manner similar to UNIX tail but it checks for file truncation so it will continue to function after log rotation.
The name comes from the proverbial dog of yore. During the Second World War, an Italian kiln worker found a street dog and nursed him back to health. He named the dog Fido from the latin word for "faithful one." It was a good choice.
Every day Fido would follow the kiln worker to the public square where he would catch a bus to work. Fido would wait faithfully for his master to return at night. One day, the kiln worker was killed in an airstrike. His dog waited patiently for his return. His master never came. For the rest of his life, Fido went daily to the square and patiently waited for his master to get off the bus. He continued this pattern faithfully until his death in 1958. This program is a tribute to the dog.
RUNNING FIDO
The format for running fido is this:
fido [options]
Fido is built with GNU's long options. Each option can be invoked in either long or short form. Both long and short can be used in the same startup. The program supports the following options:
-V
–version
VERSION, prints version number to screen.
-h
–help
HELP, prints the fido help message which closely resembles this section of the manual.
-f /path/file
–file=/path/file
FILE, an alternative config file (default: /etc/fido/fido.conf)
-C
–config
CONFIG, displays the default settings and exits. This option works best when its invoked with -f it gives you a chance to inspect the configuration of that file
-d
–daemon
DAEMON, runs the background as a daemon. This is the default setting and one you will probably want to use. Non-daemon mode is good for config troubleshooting or for development testing.
-l arg
–log=arg
LOG, this allows you to set the logging option. The choices for 'arg' are 'syslog' or '/path/to/file' If you select the former, it will use the system's syslog mechanism. If you select the latter, it will create a log file and write to that.
-p /path/file
–pid=/path/file
PID, set an alternative path to a process ID file. The default pid is: /var/run/fido.pid
On RedHat systems, it's recommended that you install the RedHat startup scripts and run fido from service, i.e., service fido start / service fido stop. The startup scripts are located in the utils directory of the source code. There is also a script to help you install them. As root, run:
utils/install-startup
CONFIGURATION
Fido is configured with a fido.conf file. By default it loops through the following files in search of a configuration:
/etc/fido/fido.conf
/etc/fido.conf
/usr/local/etc/fido/fido.conf
/usr/local/etc/fido.conf
At run time, fido uses the first first fido.conf file it finds. If you have one in /etc/fido/fido.conf and /usr/local/etc/fido/fido.conf, then it will only read the first one. You can set an alternative configuration file with -f /path/file.
Since fido can be configured in one-to-many mode (one fido can monitor several files), some of its directives can be set at both the global level and the file level. In this section of the manual we'll detail the configuration directives. If a directive is GLOBAL, then it's set outside of a file block. If it's FILE, then it's set inside a file block. And if it's BOTH, then it can be set globally or inside a file block. If a both directive is used inside a file block, then it will override the global directive for that block.
daemon = true | false
GLOBAL: This directive tells fido to run in the background as a UNIX daemon. Generally speaking, you'll want to run it in this manner. In the foreground, it's useful for config testing or development debugging. Generally speaking, 'false' is more beneficial to fido developers than fido users.
rulesdir = /path/to/directory
GLOBAL: This directive tells fido where to look for a rules file that was specified inside a file block. If your rulesdir is set to '/etc/fido/rules' and you specify 'rules = downloads.conf' inside a file block, then fido will look for /etc/fido/rules/downloads.conf
user = name
GLOBAL: This directive tells fido under which UNIX name it should run. As a rule, you should run fido as the least privileged user possible. You will need adequate permission to set a pid file and log to disk. Fortunately, fido allows you to change the path of both those files.
group = name
GLOBAL: Like the user directive, this one tells fido under which group name it should run. You will need the necessary privileges to run under the group you select.
log = '/path/to/file' OR syslog
BOTH: This directive tells fido how to log its messages. If you specify a file, it will create a file and log its messages there. If you select syslog, then it will use the system's syslog mechanism. This directive can be set at both the global level and the file block level. It's possible to log global messages in syslog and file block messages inside a specified file.
pid = '/path/to/file'
GLOBAL: This directive tells file where to write it's pid file. The default value is /var/run/fido.pid. If you don't have permission to write to that directory, then you can certainly specify an alternative location for the pid file, i.e., pid = /home/jeff/var/fido.pid
action = /path/to/script
FILE: When fido matches a pattern inside a file it's watching, it responds by issuing a command. The action directive tells it what to run. If your rules directive has a prefix label (see rules), then fido will pass that as an argument. Here's an example: LABEL: .*fido-.*tar.gz.* If fido matches that pattern inside an apache access log, it will run /path/to/script LABEL
capture = true | false
FILE: This directive tells fido to capture the output of the action command inside the logging mechanism. If your action is echo "whoo hoo!" | sendmail -v [email protected]then fido will write all the sendmail verbosity to its log. (Good for debugging action commands)
rules = filename.conf | regex
FILE: This directive tells fido what it's looking for inside a file it watches. If your rules point to a file inside $rulesdir, then fido will read them into a list and loop through that list looking for a match. Alternatively, you can specify a single value for rules and set it in the config file, i.e., rules = LABEL: .*OutOfMemoryError.*
Comments
Fido treats # and ' as comment designations. You can place them on a line by themselves or they can trail a directive. Like all config file comments, this allows you to make secret notes for yourself.
# This is a comment
key = value # and so is this
key = value ' this is, too, but we don't like this style as much
Globals
A fido configuration file is broken into two parts, global and file blocks. Global directives are simply ones that are not inside a file block. These are 'key = value' pairs that are detailed above. By convention, global values are placed at the top of the file while file blocks are placed below it. In reality, it doesn't matter where you place your globals as long as they're outside a file block.
File Blocks
Inside the configuration file, a file block specifies a file that we parse and issue a response. Any file can be configured as a block as long as you follow this format: it's a path and file followed by brackets. Inside the brackets you can define directives. Here's an example:
/usr/local/jboss/server/haha/log/console.log {
 action = /home/jboss/bin/haha
 rules = MEMORY: .*OutOfMemoryError.*
 log = /home/jboss/var/fido.log
}
The rules assignment can also be a file name. In the example below, we set rules to downloads.txt. Fido will look for that file inside its rules directory (The default rules directory is /etc/fi


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StartSmart Greece 2015: Morning Sessions
Foteini Agrafioti, Chief Innovation Officer, Architech
"The Process to Authenticate the Human Heart"
Biomedical authentication was a congested field when Foteini Agrafioti started her postgraduate work at University of Toronto. Unsure whether to pursue research in the spectrum of typical biomed technologies, Dr. Agrafioti instead took a cross-disciplinary approach, reading everything of interest. In her reading, one idea kept surfacing: the use of the human heartbeat to identify people.
In this session, Dr. Agrafioti will walk you through her journey from the idea phase to commercializing her research, an automatic human identification system from cardiac signals. The challenges along the way were numerous: there were no universal standards to measuring the heartbeat as a biometric identifier, and the idea had plenty of naysayers. Dr. Agrafioti will share with you the steps in her journey to commercialization: the proof of concept phase, the obstacles, the findings, and the options.
-Justifications and challenges to the idea of using the heartbeat as an authentication signal
-Setting the stage in the biometrics arena
-Searching for a next step: taking a "blue sky" approach
-Building a database: signals, algorithms and pizza


Books tagged: the scarlet letter
Found 2 results
Aprenda Ingles! Learn Spanish! LA LETRA ESCARLATA: En Ingles y Espanol
Price: $2.99 USD. Words: 139,320. Language: English. Published: April 21, 2012 by Kryptic Books. Category: Fiction » Historical » USA
THE SCARLET LETTER/LA LETRA ESCARLATA: This unique book features paragraph by paragraph translations from English to Spanish, allowing the reader to learn Spanish vocabulary and sentence structure while enjoying a classic. This is a fun and affordable way to learn a second language. Previous experience with Spanish is recommended, but ambitious beginners are welcome to give it a try.
The Scarlet Letter: Review Guide
Price: $2.99 USD. Words: 5,110. Language: English. Published: February 17, 2013. Category: Nonfiction » Education and Study Guides » Study guides - Literature
This eBook is a short and concise review guide of The Scarlet Letter by Nathaniel Hawthorne. The review includes a short summary of the whole novel, major themes in the novel and explanations of those themes relations to the book, a character guide with brief details on the characters, and chapter reviews written in bullet point that go into more detail than the book summary.


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This paper reports a numerical investigation of a periodic metallic structure sandwiched between two quartz plates. The volume comprised between the quartz plates and the metallic structure is infiltrated by a mixture of azo-dye-doped liquid crystal. The exposure to a low power visible light beam modifies the azo dye molecular configuration, thus allowing the wavelength shift of the resonance of the system. The wavelength shift depends on the geometry of the periodic structure and it also depends on the intensity of the visible light beam.
Optical Society of America. Journal B: Optical Physics, 2014, Vol 31, Issue 2, p. 360-365


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I am trying to measure phases of the five sinusoids in a loopback configuration with LimdSDR mini in GNU Radio environment.
The flowgraph is described below.
I set the FFT size as 2048, and the five carriers are spaced with integer multiples of FFT bin spacing, thus resulting the period of the combined signal as 128 samples.
I monitor the phase of the FFT bin at the carrier frequency to extract the phase of the carrier.
This perfectly gives the phases of five carriers in a simulation.
However, when I utilize the LimeSuite Sink blocks, there are unpredictable RX timing jumps over time, which screws the carrier phases except the DC carrier.
Please see the captured measurement screen below.
The upper scope shows the received waveform, the middle one shows the phase of the 4th carrier (FFT bin near 6.4 us indicates the phase), and the lower one shows the magnitude of the signal FFT.
Does anyone have good idea for solving this problem?
I want the phase to be static during the measurement.


Homology of Holomorphs of Free Groups
@inproceedings{Jensen2003HomologyOH,
 title={Homology of Holomorphs of Free Groups},
 author={Craig A. Jensen},
 year={2003}
}
The holomorph of a free group Fn is the semidirect product Fn oAut(Fn). Using the methods of Hatcher and Vogtmann in [10] and [11], we derive stability results and calculate the mod-p homology of these holomorphs for odd primes p in dimensions 1 and 2, and their rational homology in dimensions 1 through 5. Calculations of the twisted (where Aut(Fn) acts by… CONTINUE READING


A. what is the elevation of point x?
b. what is the elevation of point y?
c. what is the difference in elevation in meters between point x and point y?
you must have three parts to your answer for this question.
A is on the 1600 contour line so it's 1600.
B. Y is on 1240
C. 360
A. 1600 m
B. 1240 m
C. 360 m
In a topographic map, the contour lines are used to determine elevations, and are made by connecting points of equal elevations. Index contour lines are generally darker and are marked with their elevations. Lighter contour lines don't have elevations, but can be determined counting up or down the nearest index contour line and multiplying by the contour interval, which tells the difference in altitude between contour lines. The contour interval is stated on every topographic map. In this case, the contour interval is 20m. So, to determine the altitude of point Y, we have to count 2 contour intervals from the Index contour line that shows altitude 1200, and multiply it by the contour interval:
2 * 20m = 40m
So, the difference in altitude from the Index contour line 1200 to Y is 40m. We can conclude that we have to add this elevation, because the next Index contour line is 1300, so the elevation at point Y is 1240m.
Point X is part of the Index contour line 1600, so its elevation is 1600m.
To get the difference between the 2 points, we simply subtract X - Y
So, 1600m - 1240m = 360m
Do you know the answer?
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Convertize Autopilot is a responsive Multi-Armed Bandit solution, so you can automate your A/B Tests and receive maximum conversions.
Put your A/B tests on Autopilot
You can now test your website without risking conversions. Convertize manages your traffic with an advanced 'Multi-Armed Bandit' algorithm, called Autopilot. The algorithm monitors your pages to see which is converting best and sends more of your traffic to that page.
- Maximise conversions whilst running A/B tests
- Respond instantly to behaviour trends
- Never miss a conversion
Traditional "Multi-Armed Bandits" direct traffic to the page with the highest conversion rate. But what if something changes? Responding much faster than other tools, Convertize always sends your traffic in the right direction.
Create, Launch, Relax
Because Autopilot maximises your conversions and collects data as efficiently as possible, there is no need to manage your test. Whilst your team is busy producing content and managing campaigns, our A/B testing algorithm ensures your tests get results quickly and safely.
- Use historical data to optimize conversions
- Respond to patterns in visitor behaviour
- Create tests with peace of mind
Most A/B testing tools struggle to balance experimentation and optimization. Convertize solves the 'Explore vs Exploit' dilemma with a responsive A/B testing algorithm.
Why the Autopilot is better than Multi-Armed Bandit algorithm
Most A/B testing solutions divide your traffic 50/50 between page A and B. But testing can take weeks and you need to make every visitor count. Multi-Armed Bandit solutions allocate traffic between page A and B based on historical Conversion Rate data. Autopilot offers a more dynamic approach:
- Phase 1 – Page A performs best – Autopilot gradually increases traffic to A
- Phase 2 – Page B begins to convert more frequently – Traffic is quickly reallocated
- Phase 3 – Page B continues to outperform A – Autopilot maintains traffic allocation
- Phase 4 – Page B is still performing better than A – Your test finishes. Page B wins and has received the majority of your traffic
Without having to do anything, Autopilot optimizes your traffic and conversions.


24 October 2006 Optimizing slip-mean-time used in estimating nonstationary random vibration signal's PSD
Author Affiliations +
Abstract
The aircraft has always suffered non-stationary random vibration in the booster-phase of the launch process. Obtain the relationship between the slip-mean-time and the bias error and that between the slip-mean-time and the random error in the estimation of a non-stationary random vibration signal's power spectral density (PSD) by analyzing the estimation of the signal's variable mean square (MS). Based on this, Obtain the analytic relationship between the variable MS of a sample of a non-stationary random vibration signal and the optimum slip-mean-time which causes the smallest total error in the spectrum analysis of the signal, propose an approach for optimizing the slip-mean-time in the estimation of a non-stationary random vibration signal's PSD. Present an appliance for a signal sample of a random vibration process which is caused during an aircraft booster-phase. Used the orthogonal polynomial approximation to get the analytic format of the process's MS, confirm the optimum slip-mean-time used in estimating the signal's PSD.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Feiyu Huang, Hongjie Yuan, Chuanri Li, "Optimizing slip-mean-time used in estimating nonstationary random vibration signal's PSD", Proc. SPIE 6357, Sixth International Symposium on Instrumentation and Control Technology: Signal Analysis, Measurement Theory, Photo-Electronic Technology, and Artificial Intelligence, 635707 (24 October 2006); doi: 10.1117/12.716689; _URL_
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Solve, correct, and avoid critical material failure problems
Expertly analyze failures in common materials with Failure Analysis of Engineering Materials. This investigatory/analytical tool by Charles R. Brooks and Ashok Choudhury is a time-saving, one-stop reference for engineers. A soundly written introduction to principals and practices, it's invaluable for failure inquiries involving metals, ceramics, plastics, composites, and electronic materials. You get:
* Practical, hands-on help with selecting and justifying analytic methods * Numerous case studies that illustrate the use of analytical tools to determine the condition of the material * Comparative fractographs to help you pinpoint fracture type.
If You Enjoy "Failure Analysis of Engineering Materials (Hardcover)", May We Also Recommend: