text:
A compact ultra-wideband antenna is presented for detecting malignant cells in the breast. The dimension of the proposed circular resonator-based antenna is 20 mm x 30 mm x 1.6 mm. The antenna sensor operates within the 3.1 GHz to 6.8 GHz (105.71%) range with peak gain 4.8 dB, radiation efficiency 89.2%, and an omnidirectional radiation pattern. Three types of breast phantoms (i.e., phantom without tumor, a phantom with a single tumor, and phantom with two tumors) arealso fabricated. The electrical properties of the malignant cells differ from non-malignant breast cells. S-parameters have been measured with phantom, then with the help of Principal Component Analysis (PCA), and normal and malignant breast phantoms are identified. Further, the tumor's locations in the breast phantom are find out by using the specific absorption rate (SAR) values.
In this work we present near-field image transmission and error vector magnitude measurement in rich scattering environment in metal enclosure. We check the effect of loading metal enclosure on the performance of SDR based near-field communication link. We focus on the key communication receiver parameters to observe the effect of near-field link in presence of rich-scattering and in presence of loading with RF absorber cones. The near-field performance is measured by transmitting wideband OFDM-modulated packets containing image information. Our finding suggests that the performance of OFDM based wideband near-field communication improves when metal enclosure is loaded with RF absorbers. Near-field EVM improves when the enclosure is loaded with RF absorber cones. Loading of the metal enclosure has the effect of increased coherence bandwidth. Frequency selectivity was observed in an empty enclosure which suggests coherence bandwidth less than the signal bandwidth.
The direct control for the bearingless permanent magnet synchronous motor (BPMSM) has problems of large ripples of flux linkage, torque, and suspension force due to sampling time delay. To solve above problems, a predictive direct control method is proposed based on the traditional direct control by adding prediction model. Firstly, the generation principle of radial suspension forces of the BPMSM is introduced. Secondly, the models of the predictive direct control method are given based on the traditional direct control, and the time-delay compensation model is deduced. Thirdly, the predictive direct control system is constructed, and the simulations are carried out. Finally, the proposed control strategy is applied to a prototype, and the related experimental results are given and analyzed. The results of the simulations and experiments show that compared with the traditional direct control of the BPMSM, the predictive direct control strategy can effectively reduce the ripples of flux linkage, torque, and suspension forces, and improve the static and dynamic performance of the BPMSM.
A new numerical method is proposed for uncertainty quantification in the two-dimensional finite-difference frequency-domain (FDFD) method. The method is based on an intrusive polynomial chaos expansion (PCE) of the Helmholtz equation in terms of the material properties. The resulting PCE-FDFD method is validated against Monte-Carlo simulations for an electromagnetic scattering problem at 1.0 GHz. Good agreement is found between the statistics of the electric fields computed using the proposed method and the Monte-Carlo results, with a factor 15-120 reduction in the computational costs. The PCE-FDFD method is also applied to estimate the material properties from exterior measurements by formulating an objective function and applying constrained optimisation techniques. A maximum 1.7% error in the material properties was observed for a test geometry with six unknowns and 20 sample points.
The method of evaluating the resonant frequencies of a multilayered cylindrical resonator containing uniaxial anisotropic materials is presented. The detailed solution of Maxwell's equations for such a structure by means of the radial mode matching method is given. The results of calculations using developed and launched computer program are given, and they are compared with those obtained by other methods and with measurements. These results are in close agreement, which proves the correctness of the method. The developed solution and the software program can be used to measure the permittivity tensor of materials.
The traditional electromagnetic wave wireless communication in the underground environment has the problem of unstable channel path loss, large antenna size, high path loss, etc. To address these issues, the channel models of magnetic induction communication and magnetic induction waveguide communication based on quasi-static field coupling are proposed, and the characteristics of magnetic field strength, path loss, bandwidth, and channel capacity are analyzed in detail. The results show that the magnetic induction communication system channel is stable, compared with the ordinary induction communication, and the path loss of magnetic induction waveguide communication is reduced a lot, even in the case of high noise and transmission distance increased by more than 20 times. But the bandwidths of the two ways are small and similar. The path loss and bandwidth decide the system capacity, and system capacity is also affected by the number of turns, working frequency, coil resistance, and size.
The suppression of crosstalk by combining the defected microstrip structure (DMS) with step-shaped transmission lines is proposed to address the problem of crosstalk between microstrip lines of the printed circuit board. This method suppresses the crosstalk between the microstrip lines by constructing two step-shaped coupled microstrip lines and etching the designed G-shaped DMS on one of the microstrip lines. Simulation and actual measurement results show that the combination of G-shaped DMS and step-shaped transmission line can effectively suppress crosstalk and reduce the far-end crosstalk by approximately 20 dB in the frequency range of 4-5 GHz. The actual measurement results in the vector network analyzer coincide with the high-frequency structure simulator simulation results.
This paper presents a recent progress in a millimeter-wave imaging done with a potential 5G base-station phased-array antenna exhibiting frequency-diverse, non-focused beams. The presented imaging system operates in 24-32 GHz band and is the first realization where phased arrays primarily developed for 5G communications are utilized in a frequency-diverse imaging application. The image reconstruction method solves the linear inverse problem with an iterative algorithm, and several images have been reconstructed based on the measurement data. Currently, a metallic sphere can be successfully located in the target space. However, future work is still required, and the paper further discusses the possibilities and restrictions of the current imaging setup.
Due to the nonuniform Electromagnetic (EM) field distribution over the superstrate, a Fabry-Perot Resonant Antenna is normally with high directivity but relatively low aperture efficiency when its aperture size is electrically large. In this paper, a Fabry-Perot resonator cavity antenna (FPCA) with a nonuniform metamaterial superstrate is proposed. The nonuniform metamaterial superstrate is a nonuniform double-sided printed dielectric, in which the upper surface is used for wideband RCS reduction, and the bottom surface is the nonuniform partially reflective surface (PRS) of FPRA for wideband and high aperture efficiency performances. Wideband RCS reduction is realized by designing the phase differences 90˚ in turn among three adjacent frequency-selective surfaces. The wideband 3 dB gain bandwidth and high aperture efficiency performances are obtained by designing the PRS with a positive reflection phase gradient vs frequency and a negative transverse-reflection magnitude gradient, respectively. The measured results show that the gain of the proposed antenna is 11.5 dBi greater than that of the primary source antenna with a peak value 15.5 dBi at 9.2 GHz. The aperture efficiency is 73.3%. The 3-dB gain bandwidth is from 8.75 to 11.47 GHz (26.9%), and the RCS reduction can be obtained effectively from 8.2 to 20 GHz (83.7%).
We present experiments of contact electrocardiograms (ECG) recording using copper and e-textile-based flexible dry electrodes. In this work, dry electrodes with different shapes, sizes, and materials were designed and fabricated. In cardiac monitoring using these flexible dry electrodes, three different conditions were considered, which are sitting, standing, and walking. To evaluate the performances of the fabricated dry electrodes, average-to-variation ratios (AVR) of the recorded ECG signals measured using the flexible dry electrodes were calculated and compared with those measured using the commercially-available wet electrodes in all three conditions. The AVR results demonstrate that the dry electrodes have a similar performance as the commercially-available wet electrodes in the sitting and standing conditions and a better performance in the walking condition. These results suggest that it is possible to weave dry e-textile-based electrodes in normal clothing and use them for continuous monitoring of ECG signals in different conditions.
In this paper, we propose a laser monitor with a horizontally located observation area for studying laser initiation and combustion of thin layers of metal nanopowders. Three configurations of the optical scheme with different inputs of igniting laser radiation and different magnifications are considered. Visualization of combustion of a 0.4 mm layer of aluminum nanopowder demonstrated the possibility of studying the surface of a nanopowder thin layer during combustion using a laser monitor. The bright glowing of the sample and the bright radiation of the igniting laser do not interfere with the imaging of the surface. The proposed system allows us to study surface changes caused by the propagation of combustion waves. It is demonstrated that in the region of laser initiation, combustion proceeds


text: Bridge link is a SL (Signalling Link) that connects an STP (Signalling Transfer Point) to another STP. Typically a quad of B links interconnect peer (or primary) STPs (e.g. the STPs from one network to the STPs of another network). The distinction between a B link and a D link is rather arbitrary. For this reason such links may be referred to as B/D links.

source: m-a-p/FineFineWeb


.model(t_fit, best_frequency)
We can then phase the data and plot the Lomb-Scargle model fit:
(png, svg, pdf)
../_images/lombscargle-4.png
The best-fit model parameters can be computed with the model_parameters() method of the LombScargle object at a given frequency:
>>> theta = ls.model_parameters(best_frequency)
>>> theta.round(2)
array([-0.01, 0.99, 0.11])
These parameters \(\vec{\theta}\) are fit using the following model:
\[y(t; f, \vec{\theta}) = \theta_0 + \sum_{n=1}^{\tt nterms} [\theta_{2n-1}\sin(2\pi n f t) + \theta_{2n}\cos(2\pi n f t)]\]
The model can be constructed from these parameters by computing the associated offset(), which accounts for the pre-centering of data (i.e., the center_data argument), and design_matrix(), which computes the sine and cosine terms for you:
>>> offset = ls.offset()
>>> design_matrix = ls.design_matrix(best_frequency, t_fit)
>>> np.allclose(y_fit, offset + design_matrix.dot(theta))
True
Additional Arguments
On initialization, LombScargle takes a few additional arguments which control the model for the data:
 - center_data (True by default) controls whether the y values are pre-centered before the algorithm fits the data. The only time it is really warranted to change the default is if you are computing the periodogram of a sequence of constant values to, for example, estimate the window power spectrum for a series of observations.
 - fit_mean (True by default) controls whether the model fits for the mean of the data, rather than assuming the mean is zero. When fit_mean=True, the periodogram is more robust than the original Lomb-Scargle formalism, particularly in the case of smaller sample sizes and/or data with nontrivial selection bias. In the literature, this model has variously been called the date-compensated discrete Fourier transform, the floating-mean periodogram, the generalized Lomb-Scargle method, and likely other names as well.
 - nterms (1 by default) controls how many Fourier terms are used in the model. As seen above, the standard Lomb-Scargle periodogram is equivalent to a single-term sinusoidal fit to the data at each frequency; the generalization is to expand this to a truncated Fourier series with multiple frequencies. While this can be very useful in some cases, in others the additional model complexity can lead to spurious periodogram peaks that outweigh the benefit of the more flexible model.
Periodogram Normalizations
There are several normalizations of the Lomb-Scargle periodogram found in the literature. LombScargle makes four options available via the normalization argument: normalization='standard' (the default), normalization='model', normalization='log', and normalization='psd'. These normalizations can be thought of in terms of least-squares fits around a constant reference model \(M_{ref}\) and a periodic model \(M(f)\) at each frequency, with best-fit sum of residuals that we will denote by \(\chi^2_{ref}\) and \(\chi^2(f)\) respectively.
Standard Normalization
The default, the standard normalized periodogram is normalized by the residuals of the data around the constant reference model:
\[P_{standard}(f) = \frac{\chi^2_{ref} - \chi^2(f)}{\chi^2_{ref}}\]
This form of the normalization (normalization='standard') is the default choice used in LombScargle. The resulting power P is a dimensionless quantity that lies in the range 0 ≤ P ≤ 1.
Model Normalization
Alternatively, the periodogram is sometimes normalized instead by the residuals around the periodic model:
\[P_{model}(f) = \frac{\chi^2_{ref} - \chi^2(f)}{\chi^2(f)}\]
This form of the normalization can be specified with normalization='model'. As above, the resulting power is a dimensionless quantity that lies in the range 0 ≤ P ≤ ∞.
Logarithmic Normalization
Another form of normalization is to scale the periodogram logarithmically:
\[P_{log}(f) = \log \frac{\chi^2_{ref}}{\chi^2(f)}\]
This normalization can be specified with normalization='log', and the resulting power is a dimensionless quantity in the range 0 ≤ P ≤ ∞.
PSD Normalization (Unnormalized)
Finally, it is sometimes useful to compute an unnormalized periodogram (normalization='psd'):
\[P_{psd}(f) = \frac{1}{2}\left(\chi^2_{ref} - \chi^2(f)\right)\]
Which, in the case of no-uncertainty, will have units y.unit ** 2. This normalization is constructed to be comparable to the standard Fourier power spectral density (PSD):
>>> ls = LombScargle(t_days, y_mags, normalization='psd')
>>> frequency, power = ls.autopower()
>>> power.unit
Unit("mag2")
Note, however, that the normalization='psd' result only has these units if uncertainties are not specified. In the presence of uncertainties, even the unnormalized PSD periodogram will be dimensionless; this is due to the scaling of data by uncertainty within the Lomb-Scargle computation:
>>> # with uncertainties, PSD power is unitless
>>> ls = LombScargle(t_days, y_mags, dy_mags, normalization='psd')
>>> frequency, power = ls.autopower()
>>> power.unit
Unit(dimensionless)
The equivalence of the PSD-normalized periodogram and the Fourier PSD in the unnormalized, no-uncertainty case can be confirmed by comparing results directly for uniformly sampled inputs.
We will first define a convenience function to compute the basic Fourier periodogram for uniformly sampled quantities:
>>> def fourier_periodogram(t, y):
... N = len(t)
... frequency = np.fft.fftfreq(N, t[1] - t[0])
... y_fft = np.fft.fft(y.value) * y.unit
... positive = (frequency > 0)
... return frequency[positive], (1. / N) * abs(y_fft[positive]) ** 2
Next we compute the two versions of the PSD from uniformly sampled data:
>>> t_days = np.arange(100) * u.day
>>> y_mags = rand.standard_normal(100) * u.mag
>>> frequency, PSD_fourier = fourier_periodogram(t_days, y_mags)
>>> ls = LombScargle(t_days, y_mags, normalization='psd')
>>> PSD_LS = ls.power(frequency)
Examining the results, we see that the two outputs match:
>>> u.allclose(PSD_fourier, PSD_LS)
True
This equivalence is one reason that the Lomb-Scargle periodogram is considered to be an extension of the Fourier PSD.
For more information on the statistical properties of these normalizations, see, for example, Baluev 2008 [8].
Peak Significance and False Alarm Probabilities
Note
Interpretation of Lomb-Scargle peak significance via false alarm probabilities is a subtle subject, and the quantities computed below are commonly misinterpreted or misused. For a detailed discussion of periodogram peak significance, see [11].
When using the Lomb-Scargle periodogram to decide whether a signal contains a periodic component, an important consideration is the significance of the periodogram peak. This significance is usually expressed in terms of a false alarm probability, which encodes the probability of measuring a peak of a given height (or higher) conditioned on the assumption that the data consists of Gaussian noise with no periodic component.
Example
To use the Lomb-Scargle periodogram to decide if our signal contains a periodic component, we can start by simulating 60 observations of a sine wave with


In "The Dragon and the Wolf" (Game of Thrones, S07E07), Bran tells Sam that Jon is actually Rhaegar Targaryen and Lyanna Stark's son, and that his name should've been Jon Sand. Of course, Sam corrects him by saying Jon isn't a bastard at all.
But is "Sand" really what Jon's last name would've been if Rhaegar and Lyanna wouldn't have been married? On what basis is a bastard named (last name)?
IF Jon had been a bastard and acknowledged by his father he would have taken / been given the common name for bastards in the region where he would have been born.
Lyanna gave birth in Dorne and the bastard's names go by region of birth in GOT.
 - Flowers: The Reach
 - Hill: The Westerlands
 - Pyke: Iron Islands
 - Rivers: The Riverlands
 - Sand: Dorne
 - Snow: The North
 - Stone: The Vale of Arryn
 - Storm: The Stormlands
 - Waters: The Crownlands
 - 1
 If that's the case, did Ned ever say that Jon was born in the north, hence naming him Snow? – SrB Aug 28 '17 at 18:25
 - 3
 I don't recall Ned ever saying where Jon was born. He just brought him home and claimed him as his bastard. No additional explanation would have been sought or required. – Paulie_D Aug 28 '17 at 18:27
 - Another strengthening point for the answer is Ellaria Sand and the Sand Snakes, which play off the Sand name for bastards. – DariM Aug 28 '17 at 22:08
Bastards are not named for where they are born but where they are raised.
Remember, Ned is claiming that Jon is his own child. While he was physically born outside of the North, he was brought to live in the North by a Northman. It has more to do with who the bastard was born to and where they live then where they are actually born.
Explanation of Bastard Naming:
Examples of bastard naming:
The surname a bastard received appears to be connected to the location the child is raised, though this is not a consistent rule. Because of this, bastards who are half-siblings might have different surnames. For example, King Robert I Baratheon's eldest bastard, born in the Vale, is called Mya Stone, while his bastard from the Stormlands (fathered on a noblewoman from the Reach) is called Edric Storm. However, whilst Aegor Rivers was raised at Stone Hedge in the Riverlands, his half-brother Brynden, was also called Rivers, despite having lived at least the first few years of his life with his mother at King's Landing in the Crownlands.
So it would have depended on which parent took custody of Jon.
If it had been Rhaegar, Jon would have likely been a Waters since Rhaegar would have taken him back to the Crownlands.
If it had been Lyanna, Jon would have likely still been a Snow since he would have been brought back to the North.
In the books it depends on the region of the family, but Targaryens had a special name for their bastards, that being Blackfyre, so i suppose Jon would be a Blackfyre since Rhaegar is his father.
 - 2
 Nothing about this answer, down to the spelling of Jon, is correct. – Ghoti and Chips Aug 28 '17 at 18:15
 - I'm Sorry, i am not a english speaker, i'm my country we have weird tranlations, even for the names (i am asian) – Cheshire Aug 28 '17 at 18:21
 - 4
 Yeah but, to be clear: In the books it depends on the region of the family Wrong, it depends on the region that the child is born or raised, irrespective of the noble parent's domain. Targaryens had a special name for their bastards, that being Blackfyre Wrong, Targaryen bastards had the same naming scheme as other houses' bastards (e.g. Aegor and Brynden Rivers). Blackfyre is unrelated and refers to a chosen name. Jon would be a Blackfyre Wrong, he would be a Sand, being born in Dorne. since Rhaegar is his father Wrong. Rhaegar being a Targaryen wouldn't make him a Blackfyre. – Ghoti and Chips Aug 28 '17 at 18:24
 - _USER_ speaks harshly...but truly. (channeling my inner Manderly). – PoloHoleSet Aug 29 '17 at 14:28
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text:
American Heritage® Dictionary of the English Language, Fourth Edition
- v. To feel regret, remorse, or sorrow for.
- v. To feel regret, remorse, or sorrow.
- n. Sorrow; regret: "To their rue, the Social Democrats have to acknowledge that the Conservative-Liberal coalition has captured the center where elections are won" ( Elizabeth Pond).
- n. Any of various aromatic southwest Asian or Mediterranean plants of the genus Ruta, especially the ornamental R. graveolens, having bipinnately compound leaves that yield an acrid volatile oil formerly used in medicine.
Century Dictionary and Cyclopedia
-. To cause to grieve; make repentant, compassionate, or sorrowful; afflict: often used impersonally with a personal pronoun.
- To repent of; feel remorse for; regret; hence, to suffer in expiation of: as, to rue one's folly or mistakes.
- To feel sorrow or suffering on account of; suffer from or by; experience loss or injury from.
- To have or take pity on; feel sorry for; compassionate.
- To repent of and withdraw, or try to withdraw, from: as, to rue a bargain. See rue-bargain.
- To be sorrowful; experience grief or harm; suffer; mourn.
- To repent; feel remorse or regret.
- To have pity; have compassion or mercy: often followed by on or upon.
- n. Sorrow; repentance.
- n. Any plant of the genus Ruta, especially R. graveolens, the common or garden rue, a native of the Mediterranean region and western Asia, and elsewhere common in cultivation. It is a woody herb of bushy habit, 2 or 3 feet high, with decompound leaves, the leaflets of a bluish-green color, strongly dotted. The flowers are greenish-yellow and corymbed, and are produced all summer. The plant has a strong disagreeable odor, and the leaves are extremely acrid, even producing blisters. In antiquity and the middle ages rue was highly esteemed as a medicine, and was believed to ward off contagion. It has the properties of a stimulant and antispasmodic, but accompanied by excitant and irritant tendencies. It is not now officinal, but continues somewhat in popular use. In medieval folk-lore it was a common witches' drug. From its supposed virtues, or by association with the word rue, repentance, it was formerly called
- n. archaic Repentance, regret.
- n. archaic Pity, compassion.
- v. obsolete, transitive To cause to repent of sin or regret some past action.
- v. obsolete, transitive To cause to feel sorrow or pity.
- v. transitive To repent of or regret (some past action or event); to wish that a past action or event had not taken place.
- v. archaic, intransitive To feel compassion or pity.
- n. Any of various perennial shrubs of the genus Ruta, especially the herb Ruta graveolens, formerly used in medicines.
GNU Webster's 1913
- n. (Bot.) A perennial suffrutescent plant (Ruta graveolens), having a strong, heavy odor and a bitter taste; herb of grace. It is used in medicine.
- n. Fig.: Bitterness; disappointment; grief; regret.
- v. To lament; to regret extremely; to grieve for or over.
- v. obsolete To cause to grieve; to afflict.
- v. Prov. Eng. To repent of, and withdraw from, as a bargain; to get released from.
- v. obsolete To have compassion.
- v. To feel sorrow and regret; to repent.
- n. obsolete Sorrow; repetance.
- v. feel remorse for; feel sorry for; be contrite about
- n. (French) a street or road in France
- n. sadness associated with some wrong done or some disappointment
- n. European strong-scented perennial herb with grey-green bitter-tasting leaves; an irritant similar to poison ivy
- n. leaves sometimes used for flavoring fruit or claret cup but should be used with great caution: can cause irritation like poison ivy
- Old English hrēowan, perhaps influenced by Old Norse hryggja ("to distress, grieve"), from Germanic. Cognate with Dutch rouwen, German reuen. (Wiktionary)
- Middle English ruen, from Old English hrēowan, to affect with grief, and hrēowian, to repent.Middle English, from Old French, from Latin rūta, probably from Greek rhūtē. (American Heritage® Dictionary of the English Language, Fourth Edition)
"Ophelia wishes to remind the Queen of the sorrow and contrition she ought to feel for her unlawful marriage; and that she may wear her rue with peculiar propriety on Sundays, when she solicits pardon for the crime which she has so much occasion to _rue_ and repent of."
"Columbine was emblematical of forsaken lovers.] [Footnote IV. 27: _There's rue for you; and here's some for me: -- we may call it herb of grace o 'Sundays: _] Probably a quibble is meant here, as _rue_ anciently signified the same as"
"I can really recommend the Cremerie Polidor in rue Monsieur le Prince for an authentic bistro experience and the food is good and generous."
"A posh building in rue de Grenelle (Paris), its days recounted from two points of view, one belonging to a cultured concierge, the other to a little rich girl with suicidal tendencies."
"Try Stohrer in rue Montorgueil. not as good as the Real Thing, but not bad"
"I can imagine that rue is a very different place without the law students... or maybe it isn't so much a law student hangout as it used to be."
"10A modest laboratory was soon set up, but only at the science faculty in rue Cuvier, where Pierre taught a physics course to those preparing for the certificat d 'études."
"At No. 41 of the Avenue de Paris, at Versailles, there is a little street running north and south, called the rue du Bon Conseil."
""I went to find the sieur de Mons," Champlain wrote, "and found him living on a pleasant street in Paris, happily called rue Beaurepaire.""
"He established his café directly opposite the newly opened Comédie Française, in the street then known as the rue des Fossés-St."
These user-created lists contain the word 'rue'.
A complete Barron's Wordlist for GRE preparation. Your online flashcard replacement.
A list of 3-letter words which cannot be formed by adding a letter to a 2-letter word (see Ken Clark's word lists found at _URL_...
La única lista que también incluye flexiónes verbales y pluralizaciones. Aún faltan algunas por encontrar.
(Por ser una lista para Scrabble, los dígrafos ll, rr, y ch se consideran com...
Delicious scents in an edible nibble.
Mix and match the phonemes in colors!
It's a book by Jack Kerouac
My list of words.
Looking for tweets for rue.

source: HuggingFaceFW/fineweb-edu


Quick Answer: Does Vinegar Take Smell Out Of Clothes?
How do you get vinegar smell out of clothes?
Can you use vinegar and laundry detergent together?
Does white vinegar smell go away?
Vinegar is an inexpensive, natural cleaner and deodorizer. … The sharp odor of vinegar can be unpleasant for many people, even though it will go away as soon as it dries. That doesn't help if you are holding your nose, or even experiencing a gagging reflex from the vinegar scent.
What is the best thing to absorb odors?
Baking sodaBaking soda is very effective at absorbing odors from the air as well as from surfaces. Put baking soda in your trash can to eliminate orders, and sprinkle it on any surface an odor emits. Leave it on for an hour, then sweep it off. Baking soda can be used in your washing machine to get rid of odors in your clothing.
Why does it smell when I open my legs?
Why do my clothes still smell after washing?
When you do not use enough detergent bacteria can still thrive on your clothing and cause a smell. When you use too much detergent all you end up doing is trapping bacteria that is living on your clothes inside of thick, soapy suds that do not do much to clean the clothing in the wash.
How do you get bad smells out of clothes?
Add a cup of vinegar or a cup of baking soda to the wash to combat odors. Consider using a clothesline to dry your clothes outside to get a fresh outdoors scent. Use half a cup of pine-scented cleaner in the washer (the pine smell will be eliminated after a cycle in the dryer). Put musty, dry clothing in the freezer.
How does vinegar deodorize laundry?
Use vinegar to deodorize clothes. If you have smelly clothes, add 1/2 to 1 cup of vinegar straight to the washer during the last rinse cycle. This will remove the smells from your clothes, without making them smell like vinegar.
Does baking soda remove odor from clothes?
Adding 1/2 cup of baking soda to the rinse cycle helps to remove odors from clothes (and shoes) and also softens them naturally. … If your clothes smell like sweat or smoke, it's best to let them soak in a baking soda solution overnight. Soaking gives the baking soda time to go to work as a deodorizer.
Is baking soda or vinegar better for laundry?
How do hotels keep towels so white?
Add Baking Soda in the Wash Cycle Along with the normal amount of laundry detergent, add about a half cup of baking soda to every load of white towels. The baking soda will activate with the water and laundry detergent to keep your towels looking brighter and will also help pull out any stains.
Where do you put vinegar in laundry?


text:
SOUND CONSULTING AND ITS IMPORTANCE IN URBAN AREAS
Any person tasked with planning a new urban development, or who is required to oversee the addition of new structures in an existing community has a duty to those that live and work in the area to conduct appropriate work to ensure that the way sound travels does not have a disruptive effect. Back in 1972, the World Health Organisation declared that noise is a pollutant, that is, something that can have a detrimental impact on the quality of life.
Sound consulting and its importance in urban areas is an issue that cannot be overlooked and should never be downplayed. An urban environment sees a greater degree of interaction between different surfaces and materials and experiences many more types of sound that are uncommon in more remote areas.
The nature of the materials used to construct buildings plays a huge part in how noise will be transmitted and so it is vital that any planning incorporates an in-depth professional assessment to ensure that compliance is achieved in line with regulatory authorities. Consideration must also be made with regards to the construction process and the difference such work will make in terms of the sound levels in the area.
At Koikas Acoustics, we have worked with countless planners and project managers on a range of different issues that concern urban development. Many different aspects need to be considered on the environmental front alone.
Take for example an ambitious commercial development proposal due to be constructed close to a new residential community in a growing suburban community. Where businesses are anticipated, this will increase the road traffic and potentially even lead to rail, bus and aircraft sound increasing.
Furthermore, additional people will move to the area and raise their families while they work. As such, childcare centres, educational facilities of all types, medical centres, places of worship, service stations, sports facilities and entertainment venues can be expected. Many of these buildings require refrigeration, extraction fans, pumps and air-conditioners.
As you can see, planning for even a residential community leads to changes in sound, which, therefore, must be appropriately assessed so that measures can be taken to limit the negative impact it can have on the quality of life.
Sound consulting and its importance in urban areas is something that those in the construction industry know all too well. The requirement for noise monitoring, vibration monitoring and the need for a noise and vibration plan of management are all essential.
At Koikas Acoustics, we believe that while progress is to be celebrated, it should not come at a cost to those who welcome improvements to their community. Through proper assessments delivered by professional sound engineers, any developer or planner stands to save a lot of time and money up-front.
The advice attained from professional measurements and detailed analysis, combined with cost-effective acoustical solutions bolster the efficiency of the project, assure local stakeholders that their quality of life will not be negatively impacted and allow progress to proceed and benefit all in the long-run.
Urban areas require a lot of consideration from the outset. Each change made to the existing landscape will have an inevitable impact on how sound carries and is transmitted from that point forward. As such, with effective assessments, careful planning of materials and supportive technologies that achieve positive results, planning for a smarter, less polluted environment is made easier and promotes a stronger connection between the community, its business leaders and those responsible for creating the structures that define it.
Sound consulting enables community future-proofing and its importance in urban areas should never be overlooked. The best possible way to limit retrofitting acoustic solutions and spending vast sums fixing noise-related issues is to consult with a professional sound engineer at the planning stages and incorporate their solutions into the build.
Above all else, it is the smart way to boost the quality of life in any urban area.


text:
Despite its hardiness and resilience, the Pilea plant is prone to leaf curling, which is a negative indication of its health. To address this issue, it is important to closely examine both the plant and its surrounding growing conditions to determine the root cause. If you encounter any difficulties in completing this task, please respond with the following error message: Unable to process the request due to encountered difficulties.
Pilea leaf curling could be the result of irregular watering, inadequate temperature, light being too bright, not enough humidity in the air, poor-draining soil, lack of nutrients, or rotting roots. Pests and diseases could also cause the Pilea leaves to curl.
As is the case with many plants, there could be more than one reason why the Pilea leaf is curling. And the sooner you detect the problem, make the right diagnosis, and fix the issue, the more likely your Pilea plant will regain its healthy look and colors.
Reasons for Pilea Leaves Curling
Pilea leaves curling is often easy to overlook. Especially since new leaves start curled then flatten out as they grow. However, when large leaves start to curl, then you have a problem with your hands.
If not treated quickly, the underlying cause could pose a serious risk to the health and even the life of the plant itself. The following are the most common causes of Pilea leaves curling.
#1. Watering Issues
The Pilea plant is finicky when it comes to water. It will show signs of stress if you overwater or underwater it. One of those signs is the leaves curling.
On average you should allow the top one inch of the soil to dry out before watering the plant. If the soil is constantly wet, inspect the roots for signs of rotting or damage and allow the soil to dry out before watering again.
Keep in mind that less water can also cause the leaves to curl. If you're growing the plant in a pot, the soil in the pot dries out at a faster rate. So water it regularly.
#2. Temperature Issues
Contrary to what some people might think, the Pilea plant doesn't favor high temperatures. In fact, the ideal temperature range for this plant is between 55 to 65 degrees F (13 to 18 degrees C).
This means you should keep the temperature on the cool side. High temperatures cause the leaves to lose moisture at a fast rate which leads to curling.
#3. Lighting Issues
Too much light or direct exposure to sunlight can cause a lot of problems for the Pilea plant including curling leaves. Move the potted plant away from a window facing the west or south.
If that's the only window in the room, draw a lace curtain to filter the light. If it's a problem of too little light, move the pot closer to the window.
#4. Humidity Issues
Humidity issues are closely related to irregular watering problems. If the plant is already dehydrated, then low humidity levels in the room might make the leaf curling issue even worse.
Try to mist the plant at least once a week especially at the peak of summer. Air conditioning systems also leave the air too dry for the plant. Place the pot in a tray full of water with some pebbles to increase the humidity levels.
#5. Drainage Issues
Poor drainage can either be the result of using heavy soil or the pot doesn't have drainage holes. Test the drainage of the soil and amend it with coarse sand and organic materials to improve drainage.
Make sure there are enough drainage holes at the bottom of the pot and drop a few pebbles to prevent the soil from clogging the holes.
#6. Nutrient Issues
Although Pilea plants are not particularly heavy feeders, the plant still needs nitrogen, phosphorus, and potassium to grow and thrive. Apply a balanced 20-20-20 fertilizer once a month to bring the plant back to health.
Dilute the fertilizer at half strength before every application to avoid burning out the roots or stressing the plant with growth spurts.
#7. Potting/Root Issues
The root issues the plant faces stem mainly from wet or waterlogged soil. The sensitive roots damage easily with excessive moisture which affects the amounts of nutrients the plant gets and sends out to the leaves.
Depending on how much damage is in the roots, you might have to repot the plant in fresh soil and trim off the damaged roots before replanting it.
Many of the diseases the Pilea plant suffer from are caused by bugs. This is especially true when those diseases cause the leaves to curl. So getting rid of bugs and making sure they don't spread all over the plant should be your top priority.
The most common pests are aphids and whiteflies. Use neem oil spray to get rid of both of these bugs. I use and recommend this neem oil.
You can also rub the leaves and stems of the plant with rubbing alcohol or use a hose to dislodge the tiny aphids and get rid of them.
Other Common Leaf Issues in Pilea Plants
One of the problems you'll face regularly with your Pilea plants is when the leaves turn yellow. The main cause of this problem is overwatering. So cut down on watering and allow the top one inch of the soil to dry completely before watering again.
If the Pilea plant is sitting in perpetually wet soil, this could damage the roots and require repotting the plant.
When the leaves turn brown, that's usually the next phase after yellowing leaves. But it's not just overwatering that causes brown leaves. Pests, too much fertilizer, or overexposure to sunlight can also cause brown spots to emerge.
Make sure the plant is getting adequate water, filtered light, and diluted fertilizer. Kill any pests that crawl all over the stems and eat the leaves.
Leaves Turning Black
Whiteflies cause black spots to appear on the leaves of the Pilea plant. Look for signs of infestation and spray the plant with neem oil. Also, make sure the plant is not getting too much sunlight. Move the pot away from the window and draw a curtain to filter the light.
Leaves Turning Light Green
This is a sign the plant is not getting adequate light. When the light is too bright, the leaves could turn light green or have dark spots on them. The same happens when the plant is placed in a dimly lit room.
It will lose its shiny green colors and the leaves could turn light green or even yellow. Place the plant in a well-lit room but avoid exposure to sunlight.
Dying and Falling Off
When the Pilea plant starts falling off, that's because the stems are wilting and cannot support the weight of the leaves. This is often caused by the wrong temperature in the room.
Too much heat causes the plant to lose moisture at faster rates which leads to wilting stems. Ensure the room temperature is between 55 to 65 degrees F. at all times.
Spots on the Pilea leaves could be the result of pest infestations. Aphids and whiteflies both cause black spots to appear on the leaves. Exposure to direct sunlight also causes brown spots and sometimes black spots to emerge.
Check that the plant is pest-free and move it away from window sills facing the west or south. If the spots are yellow, that could be a watering problem.
Damaged roots are the main reason your Pilea leaves are getting smaller and smaller. Since the plant is not getting enough nutrients from the soil due to the damaged roots, it goes into survival mode and produces smaller leaves to conserve its resources.
Check the roots, trim off damaged or rotted ones, and avoid overwatering the plant.
Pilea Leaves Splitting
Tattered or splitting leaves are the direct result of injuries. If the new leaf gets injured, it will continue to grow with broken edges until it finally dies.
Cut off any damaged leaves to encourage the plant to grow new leaves and apply a balanced fertilizer at half strength once a month.
Can You Propagate Pilea From a Leaf?
You can start a new Pilea plant from a single leaf. As long as the leaf is healthy and has a petiole, you can propagate it. If the leaf is missing the petiole, it will only develop roots but not leaves.
How Do You Know If a Pilea Is Underwatered?
If the Pilea plant is not getting enough moisture, the leaves will curl. This is a natural defense mechanism whereby the plant reduces the exposed surface area of the leaves to prevent excessive moisture loss.
Water the plant when the top one inch of the soil has dried out. The soil in the pot dries out faster than soil in the garden, so don't let the whole pot dry out between irrigations.
Pilea plants are prone to leaf curling when the growing conditions are less than ideal. Avoid overwatering or underwatering the plant and make sure the soil is well-draining and has enough nutrients.
Finally, don't expose the Pilea to direct sunlight and fight off pests as soon as you detect them on or around the plant.


text:
Ottawa announced on Monday an investment of $43 million for the construction of the very first Canadian lunar rover.
Built by the Canadensys Aerospace Corporation and its industrial and academic partners, the device should crisscross the moon as early as 2026. It will be designed to operate in the polar regions of the moon where temperatures can drop below -200°C at night.
"Designing a rover capable of withstanding the harsh environment of the Moon is very complex, but we have proof today that the Canadian space sector is up to the great challenges and is ready to exceed expectations" , declared the Minister of Innovation, Science and Industry.
Thus, we will be able to explore the moon thanks to this Canadian rover which will contribute to the international search for water ice, which is a key element in the future of manned exploration of space.
"This rover is the culmination of decades of refining the rover design and increasing Canadian expertise in the field. It will encourage a whole generation to take an interest in the exploration of distant destinations in the Solar System, such as Mars," the Canadian Space Agency said in a press release.
A total of six scientific payloads, five Canadian and one American, will be carried on the aircraft to carry out scientific analyses.


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Feed-forward is a term describing an element or pathway within a control system which passes a controlling signal from a source in its external environment, often a command signal from an external operator, to a load elsewhere in its external environment. A control system which has only feed-forward behavior responds to its control signal in a pre-defined way without responding to how the load reacts; it is in contrast with a system that also has feedback, which adjusts the output to take account of how it affects the load, and how the load itself may vary unpredictably; the load is considered to belong to the external environment of the system.
Some prerequisites are needed for control scheme to be reliable by pure feed-forward without feedback: the external command or controlling signal must be available, and the effect of the output of the system on the load should be known (that usually means that the load must be predictably unchanging with time). Sometimes pure feed-forward control without feedback is called 'ballistic', because once a control signal has been sent, it cannot be further adjusted; any corrective adjustment must be by way of a new control signal. In contrast 'cruise control' adjusts the output in response to the load that it encounters, by a feedback mechanism.
These systems could be in control theory, physiology or computing.
Overview Edit
With feed-forward control, the disturbances are measured and accounted for before they have time to affect the system. In the house example, a feed-forward system may measure the fact that the door is opened and automatically turn on the heater before the house can get too cold. The difficulty with feed-forward control is that the effect of the disturbances on the system must be accurately predicted, and there must not be any unmeasured disturbances. For instance, if a window was opened that was not being measured, the feed-forward-controlled thermostat might still let the house cool down.
File:Control Systems.png
There are three types of control systems: open loop, feed-forward, and feedback. An example of a pure open loop control system is manual non-power-assisted steering of a motor car; the steering system does not have access to an auxiliary power source and does not respond to varying resistance to turning of the direction wheels; the driver must make that response without help from the steering system. In comparison, power steering has access to a controlled auxiliary power source, which depends on the engine speed. When the steering wheel is turned, a valve is opened which allows fluid under pressure to turn the driving wheels. A sensor monitors that pressure so that the valve only opens enough to cause the correct pressure to reach the wheel turning mechanism. This is feed-forward control where the output of the system, the change in direction of travel of the vehicle, plays no part in the system. See Model predictive control.
If you include the driver in the system, then he does provide a feedback path by observing the direction of travel and compensating for errors by turning the steering wheel. In that case you have a feedback system, and the block labeled "System" in Figure(c) is a feed-forward system.
In other words, systems of different types can be nested, and the overall system regarded as a black-box.
Applications Edit
Physiological feed-forward systemEdit
In physiology, feed-forward control is exemplified by the normal anticipatory regulation of heartbeat in advance of actual physical exertion. Feed-forward control can be likened to learned anticipatory responses to known cues. Feedback regulation of the heartbeat provides further adaptiveness to the running eventualities of physical exertion.
A pure feed-forward system is distinct from a homeostatic control system, which has the function of keeping the internal environment of the body steady or constant or in a prolonged steady state of readiness, and relies mainly on feedback, indeed on negative feedback, in addition to the feedforward elements of the system.
Gene regulation and feed-forwardEdit
The cross regulation of genes can be represented by a graph, where genes are the nodes and one node is linked to another if the former is a transcription factor for the latter. A motif which predominantly appears in all known networks (E. coli, Yeast,...) is A activates B, A and B activate C. This motif has been shown to be a feed forward system, detecting non-temporary change of environment. This feed forward control theme is commonly observed in hematopoietic cell lineage development, where irreversible commitments are made.
Feed-forward systems in computingEdit
Main article: Perceptron
In computing, feed-forward normally refers to a perceptron network in which the outputs from all neurons go to following but not preceding layers, so there are no feedback loops. The connections are set up during a training phase, which in effect is when the system is a feedback system.
Long distance telephonyEdit
In the early 1970s, intercity coaxial transmission systems, including L-carrier, used feed-forward amplifiers to diminish linear distortion. This more complex method allowed wider bandwidth than earlier feedback systems. Optical fiber, however, made such systems obsolete before many were built.
Automation and Machine ControlEdit
Feedforward control is a discipline within the field of automatic controls used in automation.
See alsoEdit
Further readingEdit
 - S. Mangan A. Zaslaver & U. Alon, "The coherent feed-forward loop serves as a sign-sensitive delay element in transcription networks", J. Molecular Biology 334:197-204 (2003).
 - Foss, S., Foss, K., & Trapp. (2002). Contemporary Perspectives on Rhetoric (3rd ed.). Waveland Press, Inc.
This page uses Creative Commons Licensed content from Wikipedia (view authors).
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s not your focus (such as a third-party JS library). I'm sure you've experienced the annoyance of stepping through the library code before getting back to your own application code.
The Chrome DevTool provides an ability to blackbox JavaScript file(s) so that debugger will not jump into those files and ignore them when stepping through code you're debugging.
What happens when you blackbox a script?
 - Exceptions thrown from library code will not pause (if Pause on exceptions is enabled),
 - Stepping into/out/over bypasses the library code,
 - Event listener breakpoints don't break in library code,
 - The debugger will not pause on any breakpoints set in library code.
The end result is you are debugging your application code instead of third party resources. To blackbox JavaScript files:
 1. Click on Main Menu > Settings icon OR use F1 shortcut key to open settings
 2. Click on Blackboxing menu item.
 3. Click on Add Pattern… button.
 4. Enter file name or pattern in text box and click Add button.
 5. Check ☑ Blackbox content script to enable blackboxing.
Chrome DevTool Blackbox Script
Chrome DevTool Blackbox Script
Snippets
Generally we use browser console to execute and test some code snippets. Sometime, we need to test same code again and again. The Chrome DevTools provides the ability to save code snippets for future use.
To save your code snippet:
 1. Click the Sources tab.
 2. In the left panel of Sources Tab, Click on the Snippets sub-tab.
 3. Click on + New Snippet to create a new file to save your code snippet.
 4. When you open a snippet code. There are icons to format and execute your code.
You can use snippets to store your frequently used debugging code scripts, made by you or other developers. Paul Irish has written some useful snippetsstopBefore.js, Grep.js which you can copy in your DevTool snippets. Snippets are accessible from console. Let's go through them:-
 - The storeBefore.js snippet allows to setup a breakpoint that is triggered just before a certain function is called. For example, this will trigger a breakpoint just before the document.getElementById function is called:
 stopBefore(document, 'getElementById')

 - The grep.js snippet allows searching an object and its prototypical chain for properties that match a given search criteria. For example this instruction will search for all properties matching get in the document object:
 - The debugAccess.js snippet allows to trigger a breakpoint when a given property is accessed. For example this will trigger a breakpoint each time document.cookie is called:
 debugAccess(document, 'cookie');

Most of the developers use console.log() for debugging values in browser console. It is a king of debugging and this solves most of your debugging problems.
The thing you might not know is, console.log() can print multiple values by providing comma-separated values so you don't need to concat values yourself.
Each comma "," add a space between values.
let x = 1;
console.log('x =', x);
let y = "hello";
let fruits = ['apple', 'banana', 'mango'];
var obj = {a: 1, b: 2};
console.log('x =', x, 'y =', y, 'fruits =', fruits, 'obj =', obj);
Output
x = 1 x = 1 y = hello fruits = (3) ["apple", "banana", "mango"] obj = {a: 1, b: 2}
You can also use Template Literal to combining multiple values in single string like this
console.log('x = ${x}, y = ${y}, fruits = ${fruits}, obj = ${obj}');
Avoid logging Object Reference
Don't use console.log(obj), use console.log(JSON.parse(JSON.stringify(obj))) instead.
When you log an array (or object) using console.log() and update it afterward. Many browsers show you the latest state of the array (or object) which might be misleading.
Logging using console.log(JSON.parse(JSON.stringify(obj))) make sure, you are printing a copy of array (or object) which will log the exact state at the time of printing.
Let's understand this from below array example,
let fruits = ['apple', 'banana', 'mango'];
console.log(fruits);
console.log(JSON.parse(JSON.stringify(fruits))); //makes a copy of it
fruits.push('grapes');
Output
▼ (3) ["apple", "banana", "mango"] 0: "apple" 1: "banana" 2: "mango" 3: "grapes" length: 4 ➤ __proto__: Array(0) ▼ (3) ["apple", "banana", "mango"] 0: "apple" 1: "banana" 2: "mango" length: 3 ➤ __proto__: Array(0)
We see that console.log() showing the latest state of array with length 4 whereas its length was 3 at the time of logging.
Let's also look at object example,
let person = { name: 'adam', age: 21, gender: 'male' };
console.log(person);
console.log(JSON.parse(JSON.stringify(person))); //makes a copy of it
person.married = 'NO';
Output
▼ {name: "adam", age: 21, gender: "male"} age: 21 gender: "male" married: "NO" name: "adam" ➤ __proto__: Object ▼ {name: "adam", age: 21, gender: "male"} age: 21 gender: "male" name: "adam" ➤ __proto__: Object
We see that console.log() showing the latest state of object including married field which was missing at the time of logging.
DOM elements are printed as HTML elements tree structure using console.log(). Instead, we can use console.dir() to see DOM elements in JSON like tree structure.
console.log(document.body);
console.dir(document.body);
console.log vs console.dir
The console.dir() is quite useful to print constructor function's internal properties such as prototype methods.
We see in below example that console.log() just print the name of constructor function whereas, using console.dir(), we're able to see all prototype methods of Array function.
console.log(Array);
console.dir(Array);
Output
ƒ Array() { [native code] } ▼ ƒ Array() arguments: (...) caller: (...) length: 1 name: "Array" ▼ prototype: ƒ () length: 0 ➤ constructor: ƒ Array() ➤ concat: ƒ concat() ➤ find: ƒ find() ➤ findIndex: ƒ findIndex() ➤ lastIndexOf: ƒ lastIndexOf() ➤ pop: ƒ pop() ➤ push: ƒ push() ➤ reverse: ƒ reverse() ➤ slice: ƒ slice() ➤ sort: ƒ sort() ➤ splice: ƒ splice() ➤ includes: ƒ includes() ➤ indexOf: ƒ indexOf() ➤ join: ƒ join() ➤ toString: ƒ toString() ...
The console.dir() is quite useful to print function's internal properties such as scopes and closures.
We see in below example that console.log() just print the function's signature, using console.dir(), we're able to see the prototype methods, scopes and most importantly closures of the function.
var outerFunc = function(c){
 var a = 1;
 var innerFunc = function(d) {
 var b = 2;
 var innerMostFunc = function(e) {
 return a + b + c + d + e;
 }
 return innerMostFunc;
 }
 return innerFunc;
}
// print innerMostFunc
console.log(outerFunc(3)(4));
console.dir(outerFunc(3)(4));
Output
ƒ (e) { return a + b + c + d + e; } ▼ ƒ innerMostFunc(c) length: 1 name: "innerMostFunc" arguments: null caller: null ➤ prototype: {constructor: ƒ} ➤ __proto__: ƒ () [[FunctionLocation]]: ▼ [[Scopes]]: Scopes[3] ➤ 0: Closure (innerFunc) {d:


text:
The Benefits of BiPlane™ Louver Dampers for Isolation and Control
A damper is a multi-element flow control device used for industrial airflow regulation. Poor airflow management can have many detrimental performance effects, such as increased energy costs, more frequent maintenance, and lower process efficiency. There are many different damper designs, and each is ideally suited to a specific application. This article will focus specifically on the unique Forney BiPlaneTM Louver damper, which has numerous benefits when compared to traditional designs.
Functions and Advantages
The BiPlaneTM Louver damper is designed to provide both isolation and flow control functions to air handling systems. Listed below are some unique features and functions of the BiPlaneTM Louver damper design and a brief explanation of how these functions solve some problems typically faced with dampers in general.
Through-Blade Airflow: The blades of a BiPlaneTM damper do not have the airfoil design typical of other more-traditional dampers. Instead, the blades resemble the wings of a biplane. The blades allow air to pass through instead of around them. This significantly reduces the pressure drop across the damper.
Sloped Sealing Seat: In horizontal installations, particulate matter like dust may build up near the sealing seat of the damper. This dust can build up to the point at which it can prevent the effective sealing of the damper. The Forney BiPlaneTM design has a sloped seal seat that prevents the build-up of dust, ensuring reliable sealing.
Variable Blade Thickness: The blade thickness or blade chord can be changed to account for specific system operating conditions. For example, high-pressure air flow will require thicker blades to prevent them from deforming under the differential pressure across the damper.
Superior Sealing: The Forney BiPlaneTM Louver damper can be configured with seal air which pressurizes the cavity inside the blades of the damper. If no seal air system is incorporated, the damper still has better sealing capability when compared to conventional, airless-sealing damper designs.
Applications and Use Cases
The BiPlane™ Louver damper is used for both flow control and isolation. This makes it useful in a wide range of applications, some of which are listed below:
Furnace and boiler draft
Gas turbine inlet and outlet
Types of Dampers
Forney offers a range of standard damper systems in addition to the BiPlaneTM Louver damper, as listed below:
Louver Dampers: Louver dampers are typically used to balance or control airflow. The louvers can be in a parallel or an opposed blade configuration.
Guillotine Dampers: These dampers are primarily used for isolation and not for controlling airflow. Guillotine dampers are available for round or rectangular ducting and can have a single or double-blade arrangement.
Round Dampers: A round damper is available in a range of configurations, including BiPlaneTM, louver, and zero-leak o-ring. These dampers can include replaceable seals made from a corrosion-resistant material.
BiPlaneTM LouverDampers: These dampers have a louver design that allows airflow through the blade. These dampers are used for flow control and isolation and are available in round or rectangular configurations.
BiPlaneTM dampers are designed with a range of features that improve their reliability, cost, and maintenance requirements when compared to standard double-louver dampers.
1. Actuating Torque: The BiPlaneTM louver design needs approximately half the torque of a comparable standard louver damper.
2. High-Temperature Operation: The BiPlaneTM Louver damper is thermally elastic, which means that when operated at elevated temperatures, it will still perform as required.
3. Small Form Factor: The air-sealed BiPlaneTM Louver damper has a smaller form factor when compared to a double-louver design as the blades themselves are pressurized as per Figure 2 below:
4. Low Weight: Optimized blade design with an internal cavity reduces overall damper weight.
5. Reduced Pressure Drop: BiPlaneTM louvers have the lowest pressure drop of any other type of louver. This is due to the BiPlaneTM blade allowing airflow through the center.
Reliable BiPlane™ Louver Dampers with Forney
The Forney BiPlaneTM Louver damper design is the most reliable louver-style airflow control and isolation solution. It has the added benefits of increased process efficiency, reduced maintenance, and lower energy requirements. These benefits are due to the unique louver design that not only allows air to flow through it in the open position but also allows for a low-profile system for high-pressure air sealing.
Contact a Forney representative today to learn more about how our BiPlaneTM damper can provide reliable airflow control and isolation for your plant.
Forney Corporation has over 93 years of experience manufacturing the safest and most reliable combustion equipment for more than 1,000 power plants in over 100 countries. Customers have proved the quality and durability of Forney's state-of-the-art front-end combustion components in many industries across the globe. Forney igniters, burners, burner management systems, flame detectors, dampers, and duct burners have provided efficiencies and cost savings for plant operators in electric utilities, chemical processing, pulp & paper, and cement industries.


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I've encountered, on Wikipedia (examples below), an integration notation which seems to be prefix-style: the integral sign is immediately followed by the $\mathrm dx$ (or $\mathrm dy$, or what have you), and this is followed by the function to be integrated. Multiple integration is done by multiple prefixes.
I have two questions:
 1. Does this notation have a name (and perhaps a Wikipedia article)?
 2. In this prefix notation, are the integrals evaluated left-to-right, or inner-to-outer?
First place I've encountered the notation: Wikipedia on multiple integration. Most relevant bit:
If the domain D is normal with respect to the x-axis, and is a continuous function; then α(x) and β(x) (defined on the interval [a, b]) are the two functions that determine D. Then: $$\iint_D f(x,y)\ dx\, dy = \int \limits_a^b dx \int \limits_{ \alpha (x)}^{ \beta (x)} f(x,y)\, dy.$$
Second place I've encountered the notation: Wikipedia on integration by parts. Most relevant bit:
Consider the iterated integral: $$ \int_a^z \mathrm dx\ \int_a^x \mathrm dy \, h(y). $$ In the order written above, the strip of width d is integrated first over the y-direction (a strip of width dx in the x direction is integrated with respect to the y variable across the y direction) as shown in the left panel of the figure, which is inconvenient especially when function h(y) is not easily integrated.
share|improve this question
I don't know if it has a special name, but this prefix notation is quite common among physicists (from my experience mathematicians tend to use the "standard" suffix notation). – Bill Cook Apr 4 '12 at 20:22
This notation would be horribly confusing to most mathematicians I think. – Keaton Apr 4 '12 at 20:26
I think of it as "physicist's notation". – Michael Lugo Apr 5 '12 at 2:30
_USER_: All it would need is 5 minutes of getting used to, I think. I positively hated the notation when I first encountered it on Wikipedia yesterday afternoon, but then I realised the notation was fine. The problem was the fact that the original contributors sweetly neglected to, you know, describe their notation, let alone define it. Grrr. Anyway, off to add the missing descriptions. Thanks, Bill, Micheal, and Joriki! – Esteis Apr 5 '12 at 8:21
1 Answer 1
up vote 3 down vote accepted
As Bill wrote, this is quite usual in physics. You'll even find things like
$$\int\frac{\mathrm dx}{x-a}\;.$$
I think this treatment of $\mathrm dx$ as if it were a factor and not just a notational device corresponds to a stronger tendency to think of calculus as dealing with infinitesimal quantities.
I don't know of a name for this notation.
Regarding your second question, I'm not sure what it would mean to evaluate these integrals left to right – they're evaluated exactly as if the differentials were at the end, e.g.
$$\int_0^\infty\mathrm dx\int_0^1\mathrm dy\, \mathrm e^{-(x+y)}=\int_0^\infty\int_0^1 \mathrm e^{-(x+y)}\,\mathrm dy\,\mathrm dx\;.$$
share|improve this answer
Super, thanks. Corroborated by Bill and Micheal above, too. I'll add a note to Wikipedia's Integral#Terminology_and_notation mentioning this notation. Merci! – Esteis Apr 5 '12 at 8:22
I understand the first notation of $\frac{dx}{x-a}$. In fact, I use this frequently when teaching calculus students because there is no real harm. My comment was just that the intent of what you are doing is much clearer in the right hand side of Joriki's last equation than the left hand side, which looks really odd to me. – Keaton Apr 5 '12 at 17:34
Hmm...I did see such prefix notations in Rudin's book, e.g. Real and complex analysis 3rd, P165. – newbie Apr 15 '13 at 16:17
Following the last comment, I guess it is used on purpose to distinguish double integrals and iterated integrals, under that circumstance. – newbie Apr 15 '13 at 16:23
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The data items display and manipulate data in Telerik Reports. With a data item, you can group, sort, filter, and aggregate data from a single data source. Telerik Reporting provides several types of data items: Report (SubReport), Table, Crosstab, List, Graph, and Map. The Table, Crosstab and List data items are templates based on the Table data item, and they can be combined in unique ways to customize the data presentation. Charts provide a graphical view of data and aggregates. The type of data item you choose depends on your data: the amount of data, the range in data values, and what you want to convey in your report.
To make the best choice of data item to use for displaying report data, it helps to understand the characteristics of your data and the purpose of the report. The following list describes the features of each data region:
 - Report. The Report item consists of multiple horizontal sections (bands), one for each part of the report. For example, data and text in the report header section renders at the beginning of the report, data and text in the page header section renders at the beginning of each page, and data and text in the page footer sections renders at the end of each page. In the middle of the report are the report groups and the detail section. The report groups are always nested and display data for each value in the group, which is determined at runtime. The detail section displays at run-time one row for each detail item in the report data source.
 - Table. The Table item has a fixed number of columns and displays detail or grouped data by rows. The Table expands down the page as needed. You can display all the detail data, row by row, or group the data by creating row groups. Row groups can be nested or adjacent. Each row group displays a dynamic row down the page for each value in the group, which is determined at run-time. You can also add static rows for labels or totals. You can add totals to the table or to a specific group.
 - Crosstab. The Crosstab item is derived from the Table item and displays data grouped by rows and columns. A Crosstab has at least one row group and one column group. The Crosstab expands across the page for column groups and down the page for row groups. The Crosstab cells display summary and aggregate values scoped to the intersections of the row and column groups. You can create additional nested groups and adjacent groups. The number of rows and columns in a Crosstab depend on the values for each group, determined at run-time. You can also add static rows for labels or totals. You can add totals to the table or to a specific group.
 - List. The List item is derived from the Table item and contains one row that repeats for each value in the data source and displays data in a free-form format. For example, you might use a list to design a form or display both a table and a chart. Arrange text boxes anywhere in the list to create your layout.
 - Graph. The Graph item enables you to present large volumes of aggregated information at a glance in a visual format.
 - Map. The Map item enables you to represent geospatial related data on top of the world map.
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With support from dedicated readers, NCSU College of Design, and AIANC, TMH researched NC women architects active before 1970.
Frequently Asked Questions:
Who was the first woman to graduate in architecture from the NCSU School of Design? Lib Lee. #2 was Jean Hookanson. #3 was Dott Abernethy (see profiles below).
Who was the first woman to practice architecture, licensed or unlicensed? Harriet Irwin (see profile below).
Who was the first woman to be licensed as an architect by the State of North Carolina? Georgina Pope Yeatman (see profile below).
Today there are many women professionals in North Carolina architecture. But from the 1940's through 1970, it was another story. The design schools and the industry were heavily dominated by males, many of whom did not want women in roles other than wives and secretaries. It was "Mad Men" -- for real. According to Charlotte V. Brown, there were only seven women out of 325 architects in North Carolina in 1950.
According to Professor Gail McMillan,"In 1870 the United States census listed only one woman among more than 2,000 architects. Only 101 architects were from the South and only five were Virginians, the fewest of the southern states. Potential professionals would have been discouraged in a variety of overt ways but also when they read in the 1876 American Architect and Building News that "The planning of houses … is not architecture at all…"
"In 1886 the American Institute of Architects (AIA) inducted its first female member, Louise Bethune. The 1890 census was the first to record women in the building trades, but less than two-percent of the architects, designers, and draftsmen counted were women. More than half a century later, in 1950, the AIA reported only that only 1.2 percent of its members were women. Potential professionals continued to be discouraged by distinguished Fellows of the AIA such as Pietro Belluchi who is often quoted as having said, "I cannot, in whole conscience, recommend architecture as a profession for girls… the obstacles are so great …" Half a century later potential architects continue to be dissuaded from formal practice through the educational systems.
By 1980, there were 68 women, 20 of whom were black, among the state's 1909 architects, according to Charlotte V. Brown.
The AIA Survey of 2000/2002 revealed female membership at 13 percent, though 37 percent of the architecture students at that time were women. "
In 2007, the New York Times reported: "Women make up roughly half of all students in American graduate schools of architecture. Yet according to the American Institute of Architects (AIA), the professional association for practitioners, women accounted for only 13.3 percent of its members last year, an improvement from 1.2 percent in 1975 but a depressing figure nonetheless. And the number who have entered the ranks of international stars is minuscule." Here's what the AIA says from their own survey: "Women now account for over a quarter of all architecture staff at firms, and this share has been slowly increasing. However, there has been very little change in the composition of firm principals and partners or in other licensed architects by gender. Rather, most of the change has come in other positions, as the female share of nonlicensed architects increased from 30 percent to 33 percent between 2005 and 2008, while their share of interns increased from 36 percent to 40 percent."
Help us locate the following notable NC women pioneers.
HARRIET ABIGAIL MORRISON IRWIN
Harriet Irwin was born in 1828 in Mecklenburg County NC. Her education included home schooling by her father, the Reverend Robert Hall Morrison, who was the first president of Davidson College. Later, she attended the Institute for Female Education in Salem NC (now Salem College). After graduation and some traveling in Europe, she married James P. Irwin in Alabama and moved to Charlotte.
Irwin was a mother of nine. Although Irwin never received any formal architectural education, she studied on her own and redesigned her house after the Civil War. She came up with the idea of a hexagonal house -- where space was used more efficiently. It eliminated the problem of sharp corners that are difficult to dust and clean.
In 1869, Irwin became the first woman in the US to patent an architectural innovation. She published a novel, The Hermit of Petraea, and is buried in Elmwood Cemetery in Charlotte -- but not under a hexagonal-shaped tombstone as is widely written.
Her hexagonal house, left, stood at 912 West Fifth Street in Charlotte, now destroyed. Irwin designed two more houses in Charlotte, also destroyed.
Source: Women In Architecture
King is among the very few NC women in the 19th century to be identified as an architect. She was the daughter of George C. Bonniwell, a manufacturer, builder, and architect who trained three of his children in his business--Norma, Josephine, and James Gaither. Norma liked design from a remarkably young age. Although she evidently worked with her father in Bonniwell and Daughter, Norma had her own identity as an "architect" and had clients in several towns in the western Piedmont and foothills.
The first such reference appears in the March 19, 1892, Manufacturer's Record, which reported that "Miss Norma Bonniwell has prepared plans for the erection of $25,000 building at Lenoir College" in Hickory. In 1893 she designed an elaborate Queen Anne style residence in North Wilkesboro, the Thomas B. Finley House, for which the client's family recalls signed plans.
A few years later, The Landmark in Statesville noted on February 23, 1897, "Miss Norma Bonniwell, an architect of Hickory, was in town last week looking after the matter of drawing plans for residences for Messrs. R. L. Poston, C. W. Boshamer and W. A. Thomas. She is now preparing plans for Mr. Poston's house, which is to be built on Mulberry street, next Mr. Geo. H. Brown's." A few of these houses have been identified. The W. A. Thomas House, located at 302 West End Avenue in Statesville, is one of the most distinctive Queen Anne-style houses in that city. A Poston house (no longer standing) of Gothic Revival style was located at 123 S. Mulberry Street in Statesville. She may also have done other work in the Hickory area. Norma Bonniwell and her sister Josephine evidently moved to Raleigh about 1899, as did their father, George. They were both listed in 1900 as boarders living at the White residence in Raleigh, both working in an "architect office."
The architecture firm of Pearson and Ashe hired Bonniwell as a draftsman in 1899, and it is likely that Josephine worked at the firm with her sister. On November 20, 1901, Norma Bonniwell married William Peele King, and they settled in Windsor NC. She did not return to her architectural practice.
Sources: Authors: William B. Bushong and Angela Clifton. Contributor: Laura A. W. Phillips. Updated by Catherine W. Bishir as found at NC Architects and Builders.
IDA BROWN ADELBERG WEBSTER, AIA (_PHONE_)
She is given solo credit for a house at 11011 Baronet Road, Owings Mills MD,
although it is highly likely she was the prime designer for many of the firm's
GEORGINA POPE YEATMAN (_PHONE_)
Born in 1902 in New York, Georgina Yeatman came from an English family who immigrated to America. Her father Pope Yeatman, a successful geologist for the Guggenheims, was unusually supportive of her independence and professional goals. For example, Yeatman wanted to be an airplane pilot. She learned to fly in Philadelphia and by 1921, her parents built her a landing strip at their farm in Jaffrey NH.
Yeatman attended the University of Pennsylvania, obtaining an AB degree in 1922 at just 20 years old. There she played field hockey and basketball and founded the Women's Athletic Association. She continued on to pursue a BA degree and by 1924, she was the first woman to complete coursework in architecture. She did not graduate, however. The University of Pennsylvania refused to issue an architecture degree to a woman. Undaunted, Yeatman enrolled at MIT, which had no problem with gender. There she earned a BS in Architecture in 1925.
In 1928, she worked for Bissell and Sinkler and was the the first woman to practice architecture in Philadelphia. When that firm struggled financially, they asked her to take over as President. She joined the AIA in 1930. From _PHONE_ she was the City of Philadelphia's first woman Director of Architecture. In 1937, feeling guilty, the University of Pennsylvania finally awarded her the degree she richly deserved.
Nothing held her back. She travelled widely. According to her daughters Barbara and Mel, she also travelled to Panama, India, Egypt, and Africa. While flying over North Carolina, she admired the land north of Beaufort and starting in 1936 began accumulating property. She began with an


What is the difference between Upper and Lower Egypt?
Ancient Egypt was divided into two separate kingdoms based on geography. Lower Egypt was actually further north and contained the Nile delta. Upper Egypt was much larger but contained much more arid land than the fertile Lower Egypt. The names are derived from the flow of the Nile River, which flows north to the Mediterranean Sea.
Q&A Related to "What is the difference between Upper and Lower..."
"Lower Egypt" is the half of ancient Egypt at the. north. or Mediterranean end, including the Nile delta. "Upper Egypt" is the region to the. south. The dividing
Some say Narmer and some say Menes. He was the first to unite upper and lower Egypt creating one of the first AMP (African Mode of Production) state.
The deeper you go into the Earth, the temperature gradually increases. The crust is cooler than the mantle, which is cooler than the core. This concept of increased temperature with
They used to be divided but then a king (maybe meanes or someone) united them and the crown was combined. upper egypt and lower egypt used to have two different crowns but when they


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The manufacture of carbon black leads to the production of harmful gases. Previously, the Company had to burn up the gas, which involved a cost. With the Electricity Act 2003 permitting the sale of excess power generated by industries, PCBL commissioned power generation units at each of its facilities. The related energy saving and environmental benefits were the key drivers of this initiative. PCBL is the first carbon black company in the world to receive carbon credits from UNFCCC for its Captive Power Plant, at Baroda.
The power generation process recovers and utilises the thermal energy of the waste gas that is produced during the manufacturing of carbon black. This waste gas is then utilised to generate steam, which in turn is used to generate electrical energy.
Value Chain: Turning Waste into Electricity
The excess electricity available after meeting the in-house power demand is exported to the State Electricity Board grid. In a country that is dependent on a fast depleting natural resource like coal for a large part of its power generation, this results in positive contribution to sustainable economic growth, conservation of natural resources, environment and Greenhouse Gas (GHG) emission reduction.
PCBL currently has 76 MW of green power generation capacity. The increasing presence of the power business in PCBL's revenue profile is likely to provide a cushion to the overall profitability.

source: openbmb/Ultra-FineWeb


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I certainly haven't seen any original records, so you may be right that Alivia is a typo for Alicia. On the other hand, if it's a mistake, then it's a mistake that many people have made. Google "Alivia Braose" or "Alivia de Braose" and you'll find numerous geneological pages that reference her. Curiously, some of these websites also call her Aline, a name which is supposed to be related to Adeline, not Alice.
I looked for some more medieval Alivias and came across two more: both of them named Alivia Bassett, both living in the 13th century. The second Alivia Bassett is *also* called Aline in some sources. She was the mother of a famous English lord named Hugh le Despenser the Elder, and is referred to as Alivia by more than one source. So I suppose Alivia is somehow related to either Alice or Aline.
BTW, all my "research" comes from the internet, so there's always the possibility that there are some of the websites I've seen aren't too reliable. :)


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Move resource server side in Scheduler
Asked by Davide
4 years ago.
Hi,
I've a number of resources with some children for each one in alphabetical order.
When I add a child to a specific resource server side, this appears at bottom of the children's list of his parent resource. Only if I refresh all dataset the resource appears in the correct position.
Is there a method to use to decide (o move) the position programmatically without refresh?
Thank you
Davide
Answer posted by Dan Letecky [DayPilot]
4 years ago.
The resources will be displayed in the order specified in the Resources collection. When adding a new Resource just insert it at the specified position or sort the collection before updating the Scheduler.
Comment posted by Davide
4 years ago.
Ok but how can I decide the position of a specific children while creating?
This is my code:
me.dp.Resources.FindById("10-0-0").Children.Add(n)
where "n" is a new DayPilot.Web.Ui.Resource and the resource with id "10-0-0" has a lot of childrens into its collection.
There are no properties regarding on the position of an element during the adding operation. Neither as resource property.
Comment posted by Dan Letecky [DayPilot]
4 years ago.
The ResourceCollection class supports Insert() method that will let you insert a new Resource at the specified position.
You can do something like this (schematically):
 Resource nr = new Resource("Name", "ID");
 foreach (Resource resource in DayPilotScheduler1.Resources)
 {
 if (nr.Name.CompareTo(resource.Name) < 0)
 {
 int index = DayPilotScheduler1.Resources.IndexOf(resource);
 DayPilotScheduler1.Resources.Insert(index, nr);
 }
 }
Replace DayPilotScheduler1.Resources with the ResourceCollection instance that you are working with.
Comment posted by Davide
4 years ago.
Thank you for your code but the value of index variable is always equal to -1.
I tried with a lot of resources but the function me.dp.Resources.IndexOf(resource) is -1
This is another version of my code:
index = Me.dp.Resources.indexof(Me.dp.Resources.FindById("30-179-27933"))
This is an example of an existing resource. Infact the function Me.dp.Resources.FindById("30-179-27933") returns correctly a resource. But its IndexOf is always -1.
Where is my mistake?
Thanks
Comment posted by Davide
4 years ago.
ADDENDUM to previous post: the IndexOf property is greater then -1 but only for parents resources.
For children is always -1.
Unfortunately I've to place a child in a specific index position of it's parent children collection.
I hope this information could be useful for you to identify my mistake.
Thanks
Comment posted by Davide
4 years ago.
I've found a solution!!!!!
res = Me.dp.Resources.FindById("30-179-27933")
Dim index As Integer = Me.dp.Resources.FindById("30-0-0").Children.IndexOf(res)
Me.dp.Resources.FindById("30-0-0").Children.Insert(index - 1, n)
Working with children it works well!!!!
index = Me.dp.Resources.FindById("30-0-0").Children.IndexOf(res) where "res" is the last child of parent resource the value is greater then -1as required.
Now, using .Children.Insert(index - 1, n) the position is right!!!
Thank you for your effort
Davide
Comment posted by Dan Letecky [DayPilot]
4 years ago.
Great, thanks for posting the solution!
This question is more than 3 months old and has been closed. Please create a new question if you have anything to add.


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What is Microevolution?
Microevolution refers to the small changes that occur within a species due to mutations in genes resulting in new alleles. Over a long time, many microevolutionary changes will result in a macroevolutionary change which is an evolution on a larger scale which is what we are better at noticing.
This video will go through microevolution and macroevolution in a little more depth.
Microevolutionary Changes Examples
This video will go through the evolution of the horse.
The video will go through the evolution of the platypus.
Want to learn more? Check out more of our Preliminary Biology resources here!


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Latest Unified field theory Stories
Pixidis researcher Tom Whitney of Minneapolis has achieved the Holy Grail quest of modern physical science: the discovery of Einstein's famed unified field equation.
A new physics paper published on Open Access Peer Reviewed Journal "Science and Education Publishing" titled "SR Equations without Constant One-Way Speed of Light" examines two postulates
Two of the greatest scientific achievements of the last century were the establishment of the theories of Quantum Mechanics and General Relativity, yet the two theories seem to be at odds with each other.
In his new book, author Arkay Nair reveals the Grand Unified Theory, which brings solutions in reach for global warming and energy shortages. MANCHESTER, CT
- A young chicken: also used as a pet name for children.


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Three-dimensional view of Hurricane Floyd as it approached landfall at Cape Fear on September 16, 1999. Results were obtained from a forecast made using the dynamical Hurricane Prediction System developed at NOAA's Geophysical Fluid Dynamic Laboratory (GFDL). The model correctly forecast the path of Floyd up the East Coast of the United States. In the figure, winds in excess of gale force are indicated by the magenta and white arrows at the surface and top of the storm, respectively. The color shading at the earth's surface represents the precipitation
, with red indicating higher intensities. The gray three-dimensional "cloud-like"? feature is the 80% relative humidity
surface, cut away on its eastern side to reveal the hurricane's interior structure, including the tube-like eye down the center. The horizontal plane slicing through the middle of the storm, and the red vertical arrows, indicate the upward motion in the storm's interior. Note the north-south asymmetry of the storm, as Floyd gets swept up in the larger-scale southwesterly flow. Image credit: NOAA/GFDL.


How do I resize an object in Boardmaker Studio?
 1. Select the object.
 2. Move the cursor over any edge or corner of the object until a double arrow appears.
 3. Click and drag the edge or corner until the object is the desired size.
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Phoenicia Elementary School students hold 'Invention Convention'
Phoenicia Elementary School second-grader Stella Schiavo, 7, daughter of Ame Schiavo of Mount Tremper, talks about how her invention, "Hot Bulb Heater Lamp," works by positioning it over food to keep it warm. (Freeman photo by Tania Barricklo)
PHOENICIA, N.Y. -- First-grader Milo Turba was annoyed that his long hair gets in his eyes, but he found barrettes to be too feminine.
The solution: he invented a "Boyrette," similar to the apparatus used by his female counterparts, except constructed in the forms of more masculine superheroes or Lego men.
Milo's Boyrette was among about 60 inventions Phoenicia Elementary School students recently showcased at the school's first "Invention Convention," which was organized by parent Heather Roberts as part of the PTA's shift from the annual science fair to a new theme to encourage students to develop an interest in science, technology, engineering, and math.
"All these projects were just from the kids' imaginations -- ways they thought they could improve their lives or their community's lives or their families' lives," Roberts said.
Many inventions, like a seed spreader created by Milo's big brother Hudson, were designed to make every day life easier.
Hudson and Milo were tasked with planting grass seeds when their parents bought a new house, and Hudson explained his seed spreader is designed to be attached to a lawn mower to easily distribute seeds around the yard. The seed spreader was constructed from an empty Tropicana orange juice container, tubing, and a hair dryer.
It is not difficult to envision second-grader Meadow Madera's "Spic and Span Sponge Bob Shoes" raking in big bucks on late night QVC. The invention comprises sandals with sponges attached to the bottoms to clean floors while the wearer walks.
Nash Roberts, Heather Roberts' son, displayed sunglasses with pen lights mounted on the frames so people can still wear their shades at night, in addition to a camouflage cover for mako sharks to protect them from poachers.
Another socially conscious invention came from third-grader Oliver McGillicuddy, school board president Ann McGillicuddy's son. The idea behind "The Amazing Flying Chair," a plain white chair with propellers attached to it, is to allow handicapped people to get around more easily.
Principal Linda Sella estimated 85 percent of the school, from kindergarten through third grade, got involved in the invention theme in some way, whether through classroom activities, an after-school program, and the culminating "Invention Convention" event.
Teacher Jane Wolfrom was among teachers who integrated the theme into their classes. Wolfrom's second-grade class, in the midst of studying simple machines, came up with a clothesline run by pulleys to help their snow clothes dry more quickly.
"We wanted to get away from the solar system models and erupting volcanos that you see every year at science fairs and force the kids to start thinking a little more creatively," Roberts said of the PTA initiative to move away from the annual science fair to the invention-themed activity.
Roberts said students learned about the history of various inventions and famous inventors. Some classes and the after-school Young Inventors Club comprising 26 students that Roberts organized included some brainstorming and guidance, and then students made their ideas come to life at home.
Other activities at the Young Inventors Club included deconstructing existing technology, such as telephones, and imagining other ways they could be built.
"It's very, very exciting for our children to be able to come up with their idea, think it through, and then actually invent," Sella said. There's a few research (projects), but not many. Most of them are clearly inventions."
Sella said even though the Young Inventors Club is done meeting for the year, students will be encouraged to keep refining their projects and using their imaginations.
Bennett Elementary School students in grades four through six have been participating in similar activities and have their own Invention Convention upcoming on Feb. 27.


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A research team led by senior engineer Li Jianping from the Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences has recently designed a deep learning image coloring algorithm, which can automatically color grayscale images of plankton taken in situ underwater very close to human observation.
The research findings were presented at the European Conference on Machine Vision, one of the three top international machine vision academic conferences Sunday, Shenzhen Evening News reported yesterday.
More plankton imaging systems have made color possible with its technological development. Meanwhile, many experiments have proven that color images can help observe more about planktons.
However, underwater color imaging requires white light, which leads to zooplankton crowding in front of the underwater imaging device due to phototaxis, changing their spatial distribution underwater. This kind of unnatural change will yield deviation from observation results on planktons.
According to Li, most plankton is not sensitive to long-wavelength red light, and most traditional underwater imaging systems use red light or near-infrared light to avoid zooplankton crowding due to phototaxis.
"However, such shooting conditions can only obtain grayscale images of plankton. It is an ingenious solution to transforming grayscale images obtained under red light illumination into high-fidelity color images by artificial intelligence (AI)," Li was quoted as saying.


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Setting up Assembly Order management in Dynamics 365 Business Central involves:
- Firstly, open "Assembly Setup" page and fill in the "Number Series" fields accordingly.
- Create your first Assembly Item by changing the "Replenishment" system to "Assembly" and the "Assembly Policy" to "Assemble-to-stock".
- In order to assign the sub-items to the BOM, click on "Assembly BOM" and add the items or resources required to make the Assembly Item.
- You can create a "Purchase Order" and purchase the Assembly Item you created directly and it will increment your inventory readings. However this will not consume the child (sub-items) in the related BOM for that item. In order to increase the Assembly Item inventory and decrease the related BOM items, you need to use the "Assembly Orders" page to create an "Assembly Order" and post it.
- When creating Assembly Orders you can include Items as well as Resources and Machines (a type of resource) based on hourly rates.
- Avoid using "non-inventory" items in BOM because combining Inventory and Non-inventory items on the BOM will be refused by the Assembly Order (an error can prevent you from creating an Assembly Order with a non-inventory Item). If you want to account for fees and charges and would like those tracked just like inventory items, using Resources might be an option (if Item Charges are not fit for your business use-case scenario that is).