Relevant bibliographies by topics / Pullet

Academic literature on the topic 'Pullet'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Pullet"

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Fayazi, J., M. R. Ghorbani, M. Nazari, J. Momeni, A. Jaferian, and A. Aghaeei. "Growth curve models for commercial pullets under severe heat stress condition." Proceedings of the British Society of Animal Science 2009 (April 2009): 234. http://dx.doi.org/10.1017/s1752756200030738.

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The objectives of our study were to propose a growth curve and to develop a mathematical model to describe the body weight of pullet experiencing severe heat stress (42°C). Poultry producers who raise their own replacement pullets can control their pullet’s growth, condition and development. Many of the problems which occur during the early part of lay can be traced back to insufficient or improper type of body weight attained during the various stages of the growing period. In order to avoid these problems, the body weight of pullets must be controlled. Rearing conditions for pullets vary depending on environmental pressures and can affect growth rate. Without the basic knowledge of the flock grow-out, it is virtually impossible to understand and possibly solve problems which may later occur during the laying period. It must be kept in mind that once egg production begins, it is too late to solve problems resulting from growing period. The two most important criteria of pullet quality are uniformity within the flock and proper body weight at a specific age. Almost anything that adversely affects a pullet will usually be reflected in lower body weights and poorer flock uniformity. High ambient temperatures can be devastating to commercial pullet growth rate; coupled with high humidity they can have an even more harmful effect on proper and recommended body weight. Heat stress interferes with the poultry comfort and suppresses performance efficiency. In order to verify the effect of heat stress on pullet growth rate, many curve modelled, fitted and verified to proposed best one.
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van Staaveren, Nienke van, Caitlin Decina, Christine F. Baes, Tina M. Widowski, Olaf Berke, and Alexandra Harlander-Matauschek. "Housing and Management Practices on 33 Pullet Farms in Canada." Animals 9, no. 2 (February 6, 2019): 49. http://dx.doi.org/10.3390/ani9020049.

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Although Canada is one of the first to provide guidelines on pullet rearing in a new Code of Practice which came into effect in March 2017, little information is available about the housing and management of pullets on Canadian farms. We surveyed 99 pullet farmers and received useable responses from 33 pullet farmers (33.3% response rate) who took part in the Start Clean-Stay Clean™ program through their provincial egg boards across Canada during October–December 2017 as part of a larger study. Most flocks were housed in conventional cage systems (42.4%), followed by single-tier (33.3%) and multi-tier systems (24.2%). Flocks ranged from 1–19 weeks of age (average: 10.5 weeks of age) and were white- (58.1%) or brown-feathered (41.9%). In general, non-cage farmers met the new requirements set out in the Code of Practice for space, perches and litter provision during pullet rearing during this transitional period. Conventional caged flocks did not have opportunities for perching and foraging, but developing new methods to provide pullets with opportunities to perch and forage will become more important as the laying hen housing system transition from conventional cages to furnished cage and non-cage housing systems in Canada progresses. Additionally, clear litter management recommendations for farmers to ensure good litter quality are needed for non-cage housing systems.
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LEESON, S., and J. D. SUMMERS. "PERFORMANCE OF LEGHORN PULLETS AND LAYING HENS IN RELATION TO HATCHING EGG SIZE." Canadian Journal of Animal Science 69, no. 2 (June 1, 1989): 449–58. http://dx.doi.org/10.4141/cjas89-050.

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In trial 1, eggs from young (28 wk) and old (65 wk) leghorn breeders were categorized into groups with mean weights of 54, 59 or 64 g. Female chicks were cage-reared to 18 wk of age; three rearing treatments involved five replicate cages of nine pullets from each egg size category, while treatment 4 involved a mixed population. The largest eggs contained most yolk fat and protein and albumen protein (P < 0.05). Egg size had no effect on male chick composition (P < 0.05). There was no overall effect of egg size or breeder age on feed intake of pullets, although up to 8 wk of age, pullets from small eggs were consistently smaller than those from large eggs. Egg size and breeder flock age had no effect on pullet weight at 18 wk. Pullets reared as a combination group of small:medium:large (3:3:3, treatment 4) showed a significant (P < 0.05) egg size effect on pullet weight at 18 wk of age. In a second trial, eggs were collected from a 45-wk-old flock of commercial leghorn breeders. Eggs were set according to weight, with mean egg weights of 56.4, 61.1 or 66.8 g. Rearing treatments related to the three egg size categories were represented by 10 replicate groups of nine birds each. A fourth treatment involved 26 groups of three chicks from each of the egg weight treatments. Breeder egg size had a significant effect on pullet weight at 126 d. With this differential maintained through the first 12 wk of lay. Breeder egg size had no effect on egg production (P > 0.05), although mean commercial egg weight and feed intake (P < 0.01) were directly proportional to hatching egg size (P < 0.01). It is concluded that hatching egg size can have a significant effect on life-cycle performance of leghorns, and as such, there may be scope for differential management of pullets hatched from different sizes of egg. Key words: Pullet, egg size, egg composition
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Akanbi, Olatunde Babatunde, and Victor Olusegun Taiwo. "Mortality and Pathology Associated with Highly Pathogenic Avian Influenza H5N1 Outbreaks in Commercial Poultry Production Systems in Nigeria." International Scholarly Research Notices 2014 (October 22, 2014): 1–7. http://dx.doi.org/10.1155/2014/415418.

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Commercial layer-type, pullet, cockerel, and broiler chicken flocks infected with highly pathogenic avian influenza (HPAI) H5N1 in Nigeria between 2006 and 2008 were investigated for morbidity, mortality, and pathology. Of the one hundred and fifty-three (153) farms confirmed with HPAI infection, one hundred and twenty-seven (127) were layer-type farms, nine (9) were pullet and broiler farms each, and eight (8) were cockerel rearing farms. This study revealed the morbidity and mortality of a total of 939,620 commercial layer chickens, 16,421 pullets, 3,109 cockerels, and 6,433 broilers. Mortality rates were 11.11% in commercial layers, 26.84% in pullets, 45.51% in cockerels, and 73.92% in broilers in a total of eighteen (18) states and the Federal Capital Territory, Abuja. A total of 316 carcasses were examined of which 248 were commercial layer, 25 were pullet, 14 were cockerel, and 29 were broiler. Main clinical and pathologic findings were observed in the nervous, circulatory, respiratory, integumentary, musculoskeletal, hemopoietic, gastrointestinal, and reproductive systems and, occasionally, lesions were generally nonspecific and multisystemic. Lesions occurred more frequently, severely, and in most of the carcasses examined, irrespective of chicken type.
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Nääs, Irenilza de A., Daniela E. Graciano, Rodrigo G. Garcia, Mayara R. de Santana, and Diego P. Neves. "Heat loss in one day old pullets inside a hatchery." Engenharia Agrícola 34, no. 4 (August 2014): 610–16. http://dx.doi.org/10.1590/s0100-69162014000400001.

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After hatching, pullets are transported to brooding area and vaccinated. One day old chicks have not already developed thermoregulation ability; thus, brooding temperature variations may affect pullet quality leading to broiler meat production losses. This research aimed to calculate sensible heat loss in one day old pullets in hatching area and vaccination room. Ten one day old pullets were randomly selected from hatching area of a commercial hatchery. Infrared images were used to calculate bird surface temperature. Exposure areas for the two conditions were quantified, and both air temperature and wind speed was recorded. Total sensible heat loss was calculated as heat loss by radiation plus heat loss by convection. It was found that heat transfer occurs in different ways at different bird body parts. Total heat loss found for hatching baskets was equivalent to 0.81 J s-1 while for vaccination room was 1.16 J s-1. Pullet nutrition is based on energy loss from brooding to farm, and the overall pullet heat loss from hatchery to farm accepted is 13.95 J s-1. Thus, "starter feed" has relevant excess of energy input. These findings indicate that less energy can be used in initial feed, once heat loss is lower than assumed nowadays. Improved knowledge on these conditions may enhance broiler farm feeding strategies and economics during first rearing week.
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Campbell, Dana L. M., Priscilla F. Gerber, Jeff A. Downing, and Caroline Lee. "Minimal Effects of Rearing Enrichments on Pullet Behaviour and Welfare." Animals 10, no. 2 (February 18, 2020): 314. http://dx.doi.org/10.3390/ani10020314.

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In Australia, free-range pullets are typically reared indoors, which may hinder later adjustment to outdoor access. Rearing enrichments could optimise pullet development. Hy-Line Brown® chicks (n = 1700) were reared indoors across 16 weeks with 3 enrichment treatments: (1) a standard control; (2) novel objects (novelty) provided weekly or (3) perching structures (structural) provided. All pullets were weighed at 5, 8, 12, and 16 weeks old. Pullets (n = 87) were tested in a novel arena at 9 weeks and manual restraint (n = 90) at 16 weeks. At 15 weeks, lymphoid organs were extracted and weighed from 90 pullets. Pullets were transferred to the free-range facility at 16 weeks and housed in 9 identical pens within rearing treatments. Hens perching were counted via video recordings across the first week. The structural pullets had the highest relative adrenal weights (p = 0.03) but differences may not have been biologically relevant. Structural hens perched less than the novelty hens in the layer facility (p = 0.02). There were no other consistent rearing treatment differences. The rearing environments had minimal effects on pullet behaviour and welfare, but data from the adult hens did show some longer-term welfare impacts.
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Li, Guoming, Baoming Li, Zhengxiang Shi, Yang Zhao, Qin Tong, and Yu Liu. "Diurnal rhythms of group-housed layer pullets with free choices between light and dim environments." Canadian Journal of Animal Science 100, no. 1 (March 1, 2020): 37–46. http://dx.doi.org/10.1139/cjas-2019-0009.

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Chickens under appropriate light–dark programs can develop diurnal rhythms. However, actual needs of layer pullets for the light and dark environments are not fully understood. This study was to investigate the diurnal rhythms of pullets in the light (30 lx) and dim (<1 lx) environments. The preferences of pullets on the light and dim environments were examined. The testing system contained four identical compartments (0.96 m length × 1.20 m width × 2.00 m height for each). A light-emitting diode tube, a camera, and weighing sensors were installed in each compartment. Four groups of eight Chinese domestic layer pullets, Jingfen, were used at the weeks 15–18. Choices of environments and feeding behaviors were monitored by weighing sensors, and activity was measured by digital image processing. The results show that pullets spent on average 35.5 ± 2.2 min under the light and 24.5 ± 2.1 min under the dim in each hour. Human inspection can stimulate bird feeding and activity. Overall, pullets behaved more actively under the light than under the dim environment. Pullets stayed in the light and dim environments throughout each hour of a day, which may suggest that lighting environments with free choices in a pullet house might better serve for pullet preference.
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Ologhobo, A. D., and A. M. Balogun. "The Value of Dried Fish Silage for Pullet and The layer Hen." Nigerian Journal of Animal Production 14 (January 16, 2021): 67–76. http://dx.doi.org/10.51791/njap.v14i.2610.

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Two experiments were conducted with golden Hubbard pullet chicks to investigate the replacement effects of locally prepared fish silage for imported fish meal in pullet and layers' rations. Acidic and neutral fish silage preparations concentrated with either maize or cassava plus groundnut meal and wheat offals, were fed as a substitute for fish meal. Results with pullets showed good feed consumption for all dietary treatments but feed efficiency was decreased (P<0.05) for neutral cassava, acidic maize and acidic cassava fish silage treatments. Pullet mortality was between 0.18 and 4.17%, being significantly (P<0.05) highest in the acidic fish silage diets. Lipid retention, metabolizable energy (ME) and efficiency of energy utilization (ME%) were similar across all treatments except for neutral maize fish silage, in which ME was slightly high and lipid retention low. Egg production and egg size significantly (P<0.05) decreased among groups of birds fed acidic maize acidic cassava and neutral cassava fish silage diets. Similarly, the efficiency of feed conversion to eggs decreased (P<0.05) in all fish silage substituted diets.
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Egbeyale, L., S. Abiola, O. Sogunle, and M. Ozoje. "Potencial de crecimiento post-eclosión de pollitas Dominant Black y Yaffa Brown con huevos de diferentes pesos." Archivos de Zootecnia 64, no. 247 (December 10, 2015): 347–53. http://dx.doi.org/10.21071/az.v64i248.419.

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The study was conducted to determine the effect of egg size on post-hatching performance of pullet chicks obtained from Dominant Black (DB) and Yaffa Brown (YB) strains of pullet. A total of eight hundred and ten hatching pullet eggs (405 eggs per strain) were grouped into three egg sizes (small, medium and large) per strain resulting in six treatment groups which were replicated three times with forty-five eggs per replicate. Post-hatching performance of one hundred and sixty two pullets from both strains was monitored till first egg was laid. Feed and water were supplied ad libitum throughout the period. Three eggs per replicate were used to determine both internal and external egg qualities. Data obtained were subjected to analysis of variance in a 2 x 3 factorial experimental design. The results showed that average body weight, feed and protein intake of the birds during starter phase of pullet chicks significantly (p0.05). Age at first lay, weight of bird at first lay and egg quality parameters were not affected (p>0.05) by egg size and strain. The egg size also increased (p0.05) influence on all the parameters measured throughout the study. It was concluded that egg size could only be beneficial if the target is to sell chicks at the end of growing phase. However, setting of different egg sizes could be encouraged since the effect at maturity (laying) is not significant.
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Nworgu, F. C., and F. O. Fasogbon. "Centrosema (Centrosema pubescens) Leaf Meal as Protein Supplement for Pullet Chicks and Growing Pullets." International Journal of Poultry Science 6, no. 4 (March 15, 2007): 255–60. http://dx.doi.org/10.3923/ijps.2007.255.260.

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Dissertations / Theses on the topic "Pullet"

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Magar, Vivek Dattatray. "Effect of juvenile dietary regime and time of beak trimming on pullet growth, subsequent egg production and incidence of prolapse in Leghorns." Thesis, Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/53229.

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Beak trimming at two different ages, Week-1 and Week-8, under four dietary regimens, varying in percent crude protein (CP) and metabolizable energy (ME) were compared. The dietary regimens were conventional high energy (CHE), conventional medium energy (CME), conventional low energy (CLE) and step-up protein regimen (SUP). At 20 weeks of age, 192 birds from each beak-dietary treatment were housed in laying cages for 24 weeks of egg production. One-half of the birds were provided with high light intensity ranging from 20 to 70 lux and one-half with low intensity from 2.5 to 22 lux. Cumulative feed intake through 20 weeks of age for the CHE fed birds was significantly lower than that for the CLE fed birds but did not differ from that of the CME or the SUP fed birds. The feed intake of the CME and CLE groups did not differ from each other; however, both were significantly greater than that of the SUP fed birds. Birds reared on CME had the lowest protein consumption with no difference in protein consumption between CHE, CLE and SUP fed birds. Birds reared on the SUP regimen had the lowest ME intake followed by the CLE group with no significant difference between CHE and CME groups. By 20 weeks of age, there was no significant difference in body weight for CHE, CME and CLE birds with those on SUP being significantly lower than all other treatments. Livability for the 20-week growing phase did not differ among dietary treatments. The influence of age when beaks were trimmed (Week-1 or Week-8) on feed, protein, and energy intake, body weight or livability for the 20-week growing period did not differ between the two beak treatments. By 44 weeks of age, there were no significant body weight differences among any of the juvenile dietary treatments. Age at 50% production, hen-day and hen-housed egg production, egg weight, shell quality, feed per egg, livability and mortality due to prolapse per se did not differ significantly among juvenile dietary treatments for the six 28-day production period. Birds reared on SUP regimen laid a significantly higher number of pee-wee eggs (< 42.5 g) and a significantly lower number of extra-large eggs (63.8 - 70.8 g) than those fed the other diets. Age at beak trimming and level of light intensity did not influence any of the parameters evaluated during the laying period.
Master of Science
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CARLETO, NIVALDO. "Projeto, construção e caracterização de um modulador pulsado para a operação de uma válvula magnetron de potência." reponame:Repositório Institucional do IPEN, 2005. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11275.

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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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Cohen, Jacob Arthur. "Measuring the electric field of picosecond to nanosecond pulses with high spectral resolution and high temporal resolution." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37179.

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We demonstrate four experimentally simple methods for measuring very complex ultrashort light pulses. Although each method is comprised of only a few optical elements, they permit the measurement of extremely complex pulses with time-bandwidth products greater than 65,000. First, we demonstrate an extremely simple frequency-resolved-optical gating (GRENOUILLE) device for measuring the intensity and phase of pulses up to ~20ps in length. In order to achieve the required high spectral resolution and large temporal range, it uses a few-cm-thick second harmonic-generation crystal in the shape of a pentagon. This has the additional advantage of reducing the device's total number of components to three. Secondly, we introduce a variation of spectral interferometry (SI) using a virtually imaged phased array and grating spectrometer for measuring long complex ultrashort pulses up to 80 ps in length. Next, we introduce a SI technique for measuring the complete intensity and phase of relatively long and very complex ultrashort pulses. It involves making multiple measurements using SI (in its SEA TADPOLE variation) at numerous delays, measuring many temporal pulselets within the pulse, and concatenating the resulting pulselets. Its spectral resolution is the inverse delay range--many times higher than that of the spectrometer used. The waveforms were measured with ~ fs temporal resolution over a temporal range of ~ns and had time-bandwidth products exceeding 65,000, which to our knowledge is the largest time-bandwidth product ever measured with ~fs temporal resolution. Finally, we demonstrate a single-shot measurement technique that temporally interleaves hundreds of measurements with ~fs temporal resolution. It is another variation of SI for measuring the complete intensity and phase of relatively long and complex ultrashort pulses in a single shot. It uses a grating to introduce a transverse time delay into a reference pulse which gates the unknown pulse by interfering it at the image plane of an imaging spectrometer. It provided ~125 fs temporal resolution and a temporal range of 70 ps using a low-resolution spectrometer.
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Bordyugov, Grigory. "Dynamics and stability of pulses and pulse trains in excitable media." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=981984177.

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Fernández, González Alma. "Chirped pulse oscillators generating microjoule femtosecond pulses at megahertz repetition rate /." [S.l.] : [s.n.], 2007. http://edoc.ub.uni-muenchen.de/archive/00006967.

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Fernández, González Alma. "Chirped Pulse Oscillators: Generating microjoule femtosecond pulses at megahertz repetition rate." Diss., lmu, 2007. http://nbn-resolving.de/urn:nbn:de:bvb:19-69673.

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Bolatbek, Zhanibek. "Detection and Pulse Shaping of Continuous Wave and Pulsed Broadband Light." University of Dayton / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1619634310138999.

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Somasundaram, Meena Sivalingam. "Pulsed power and load-pull measurements for microwave transistors." [Tampa, Fla] : University of South Florida, 2009. http://purl.fcla.edu/usf/dc/et/SFE0003293.

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Chauhan, Vikrant Chauhan Kumar. "Pulse compression and dispersion control in ultrafast optics." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/37153.

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Pulse Compression and Dispersion Control in Ultrafast Optics Vikrant K. Chauhan 116 Pages Directed by Dr. Rick P. Trebino In this thesis, we introduced novel pulse compressors that are easy to align and which also compensate for higher order dispersion terms. They use a single dispersive element or a combination of dispersive elements in single-element-geometry. They solve the problem of extra-cavity pulse compression by providing control of the pulse width in almost all of the experiments performed using ultrashort pulses, and they even compensate for higher order dispersion. We performed full spatiotemporal characterization of these compressors and demonstrated their performance. We also developed a theoretical simulation of pulse compressors which is based on a matrix based formalism. It models the full spatiotemporal characteristics of any dispersion control system. We also introduced a simple equation, in its most general form, to relate the total dispersion and magnification introduced by an arbitrary sequence of dispersive devices. Pulse compressor characterization was done using interferometric measurements in the experiments presented in this work, but we also developed a method to measure pulses that uses polarization gating FROG for measuring two unknown pulses. In the last part, we briefly discuss the designing of a high energy chirped pulse amplification system.
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Bao, Ainan. "Ignition of hydrocarbon fuels by a repetitively pulsed nanosecond pulse duration plasma." Columbus, Ohio : Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1198975288.

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Books on the topic "Pullet"

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The pullet surprise: A year on an urban farm. Vancouver: Raincoast Books, 1997.

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Kuntz, Darcy, and Gryffon Turner (Translator). The Black Pullet: Or the Hen With the Golden Eggs (Kabbalistic-Grimoire Series No. 2): The Science of Magical Talismans from the French. Sequim, WA.: Holmes Pub Group Llc, 1998.

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Armentrout, Patricia. The pulley. Vero Beach, Fla: Rourke Press, 1997.

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McNeill, Moyra. Pulled thread. London: Bell & Hyman, 1986.

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Dodge Wood Split Pulley Co. Revised illustrated catalogue and price list, 1891, of the Dodge Wood Split Pulley Co. [Toronto?: s.n., 1991.

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Niemann. Volle pulle. München: Piper, 1993.

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McNeill, Moyra. Pulled thread embroidery. New York,NY: Dover Pubns., 1994.

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McNeill, Moyra. Pulled thread embroidery. New York: Dover Publications, 1993.

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Field guide to laser pulse generation. Bellingham, Wash: SPIE Press, 2008.

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Zheltov, K. A. Pikosekundnye silʹnotochnye ėlektronnye uskoriteli. Moskva: Ėnergoatomizdat, 1991.

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Book chapters on the topic "Pullet"

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Nielsen, Jens H., Dominik Pentlehner, Lars Christiansen, Benjamin Shepperson, Anders A. Søndergaard, Adam S. Chatterley, James D. Pickering, et al. "Laser-Induced Alignment of Molecules in Helium Nanodroplets." In Topics in Applied Physics, 381–445. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-94896-2_9.

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AbstractModerately intense, nonresonant laser pulses can be used to accurately control how gas phase molecules are oriented in space. This topic, driven by intense experimental and theoretical efforts, has been ever growing and developed for more than 20 years, and laser-induced alignment methods are used routinely in a number of applications in physics and chemistry. Starting in 2013, we have demonstrated that laser-induced alignment also applies to molecules dissolved in helium nanodroplets. Here we present an overview of this new work discussing alignment in both the nonadiabatic (short-pulse) and adiabatic (long-pulse) limit. We show how femtosecond or picosecond pulses can set molecules into coherent rotation that lasts for a long time and reflects the rotational structure of the helium-solvated molecules, provided the pulses are weak or, conversely, results in desolvation of the molecules when the pulses are strong. For long pulses we show that the 0.4 K temperature of the droplets, shared with the molecules or molecular complexes, leads to exceptionally high degrees of alignment. Upon rapid truncation of the laser pulse, the strong alignment can be made effectively field-free, lasting for about 10 ps thanks to slowing of molecular rotation by the helium environment. Finally, we discuss how the combination of strongly aligned molecular dimers and laser-induced Coulomb explosion imaging enables determination of the structure of the dimers. As a background and reference point, the first third of the article introduces some of the central concepts of laser-induced alignment for isolated molecules, illustrated by numerical and experimental examples.
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Gooch, Jan W. "Puller." In Encyclopedic Dictionary of Polymers, 596. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_9597.

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Gooch, Jan W. "Pulled Surface." In Encyclopedic Dictionary of Polymers, 596. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_9596.

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Gooch, Jan W. "Sprue Puller." In Encyclopedic Dictionary of Polymers, 693. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_11086.

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Lichtenberg, S., and P. Habermeyer. "Pulley Lesions." In Shoulder Arthroscopy and MRI Techniques, 213–27. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-642-55604-3_13.

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Nischwitz, Sebastian P., David B. Lumenta, Stephan Spendel, and Lars-Peter Kamolz. "Minimally Invasive Technologies for Treatment of HTS and Keloids: Pulsed-Dye Laser." In Textbook on Scar Management, 263–69. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44766-3_31.

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AbstractWe present another minimally invasive technology for the treatment of hypertrophic scars and keloids: the pulsed-dye laser. Being first introduced by two groups around Schaefer (Germany) and Sorokin & Lankard (USA) in 1966, the pulsed dye laser is a rather new technology. The first clinical use of pulsed-dye lasers was reported in 1983 for the treatment of naevus flammeus, and was the first laser used for the treatment of keloids in the mid-1990s.Its efficacy is based on the principle of selective photothermolysis, enabling a selective destruction of defined structures absorbing the respective wavelength used, as compared to other lasers working based on thermal coagulation or ablative tissue interaction. The preferred wavelengths being used are 585 or 595 nm, which makes small cutaneous vessels the main targets. Their destruction leads to a diminished blood supply of the irradiated area, thus reducing symptoms of hypertrophic scars like itching, vascularity, and redness, and secondary – probably by the induced hypoxemia – a reduction in scar height and pliability. This therapeutic approach also implies the use of pulsed-dye laser in the prevention of pathologic scars. While significant side effects are usually rare, slight signs of use like edema or scab formation can pertain for several days. Since the sensory impact of laser pulses are comparable to needle pricks, some form of analgesia during the application is highly recommended. The elusive data and still existing scarcity of high-quality studies on the use of pulsed-dye laser, however, make it hard to develop clear recommendations.
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Li, Yiheng, Chengzhe Shu, Shan Jiang, and Tao Peng. "Development of 20 T Split Pulsed Magnet for Repetitive Pulses." In The Proceedings of the 9th Frontier Academic Forum of Electrical Engineering, 463–71. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6609-1_41.

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Aslan Seyhan, Irem. "Brief History of the Pulleys and Explanation of Chief Instructor Ishaq Efendi’s Work on Pulleys and Pulley Systems." In Explorations in the History and Heritage of Machines and Mechanisms, 406–18. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-98499-1_33.

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Gooch, Jan W. "Pulled-In Filling." In Encyclopedic Dictionary of Polymers, 596. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_9595.

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Moutet, François, M. Bouyer, Denis Corcella, Alexandra Forli, and Alessandro Semere. "Climber’s Pulley Injuries." In Sports Injuries of the Hand and Wrist, 81–99. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-02134-4_5.

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Conference papers on the topic "Pullet"

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DeLand, Trevor S., Ross E. Dudgeon, Michael W. Orth, Darrin M. Karcher, and Roger C. Haut. "Effect of Housing System on Properties of Pullet Bones." In ASME 2012 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/sbc2012-80631.

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Recently, attention has been brought to the welfare of laying hens and the benefits provided by progressive housing systems [3]. Conventional battery cage (CC) systems provide each bird with access to feed and water at all times with room to move. One of the new housing types being implemented, referred to as a cage-free aviary system (AV), is much larger than conventional cages and houses more birds. Aviary systems comprise multiple levels providing more opportunity for movement and exercise. Hens can forage and dust bathe in an open communal area, have access to perches, and nest boxes. However, for mature hens to fully utilize an AV, pullets (pre-egg production birds) must be reared in a similar environment.
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Cândido, Márcia Gabrielle Lima, Ilda de Fátima Ferreira Tinôco, Rafaella Resende Andrade, Isabella Theresa de Almeida Martins, Leticia Cibele da Silva Ramos Freitas, and Richard S. Gates. "Evaluation of Environmental Temperature in Pullet Weight Gain and Uniformity." In 10th International Livestock Environment Symposium (ILES X). St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2018. http://dx.doi.org/10.13031/iles.18-140.

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Yang, Xiao, Lilong Chai, Ramesh Bahadur Bist, Sachin Subedi, and Yangyang Guo. "Variation of litter quality in cage-free houses during pullet production." In 2022 Houston, Texas July 17-20, 2022. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2022. http://dx.doi.org/10.13031/aim.202200925.

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Morgan D Hayes, Hongwei Xin, and Hong Li. "An Evaluation of Pullet and Young Laying Hen Ammonia Aversion Using a Preference Test Chamber." In 2009 Reno, Nevada, June 21 - June 24, 2009. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2009. http://dx.doi.org/10.13031/2013.27348.

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Ron MacDonald, Katie Gibb, Mike Kazmaier, and Dick Karton. "Pullet Housing Comparison of Dimmable Incandescent Lamps vs. Incandescent Flexitube Lite vs. Compact Fluorescent Light Systems." In 2009 Reno, Nevada, June 21 - June 24, 2009. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2009. http://dx.doi.org/10.13031/2013.27255.

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Hasyim, Aulia Rahmad, Khadijah El Ramija, Khairiyah, and Alwiyah. "Pengembangan Ayam Kampung Unggul Balitbangtan-1 (KUB) di Sumatera Utara." In The 2nd National Conference of Applied Animal Science (CAAS) 2021. Politeknik Negeri Jember, 2021. http://dx.doi.org/10.25047/animpro.2021.5.

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Ayam KUB-1 merupakan ayam yang dihasilkan dari seleksi ayam kampung yang dilakukan oleh Balitnak. Ayam KUB-1 memiliki keunggulan berupa tingginya produksi telur. BPTP Sumatera Utara merupakan salah satu unit pelaksana teknis yang mengembangkan ayam KUB di Sumatera Utara. Sebagai kooperator adalah petani-peternak yang sudah ditentukan untuk peternak inti dan peternak plasma. Dilakukan Pembangunan kandang inti dan pembangunan kandang plasma.Ayam pullet KUB-1 populasi 500 ekor di kandang inti dan 250 ekor DOC didistribusikan ke kandang plasma 1 di Desa Galang Suka Kec. Galang Kab. Deli Serdang, Plasma 2 di Kelurahan Sari Rejo Kec. Medan Polonia Kota Medan dan Plasma 3 di Desa Pematang Cengal Barat Kec. Tanjung Pura Kab Langkat. Produktivitas produksi ayam KUB-1 di ketiga kandang tidak berbeda jauh hanya kandang Desa Galang Suka Kabupaten Deli Serdang lebih rendah jika dibandingkan dengan kandang Sari Rejo Kota Medan dan kandang Desa P.Cengal Kabupaten Langkat. Nilai IOFC terendah dimiliki oleh peternak yang berasal dari kandang plasma Desa Galang Suka, Kabupaten Deli Serdang dan nilai IOFC yang tertinggi adalah kandang plasma Desa P. Cengal Kabupaten Langkat.
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Sozzi, Michele, Katia Tragni, Stefano Selleri, Annamaria Cucinotta, Adrian H. A. Lutey, Pier Gabriele Molari, and Simone Carmignato. "Picosecond and Nanosecond Pulsed Laser Ablation of Aluminium Foil." In ASME 2013 International Manufacturing Science and Engineering Conference collocated with the 41st North American Manufacturing Research Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/msec2013-1189.

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The pulsed laser ablation of 20 micron thick aluminium foil is investigated by exposing moving samples to picosecond pulses of wavelength 1064nm and nanosecond pulses of wavelength 515nm and 1030nm. Ablation thresholds and depths are determined for a range of conditions using an optical microscope and 3D optical profiler. Complete three-dimensional crater profiles for single and multiple pulses are presented. The results reveal a variation in ablation threshold with wavelength, pulse duration and the number of pulses; a large reduction is observed for picosecond pulses. Ablation rates per pulse are expressed by general equations and found to vary strongly with both laser type and the number of pulses. The green nanosecond laser is found to ablate most efficiently for fluences above 10J/cm2, whilst the picosecond source is instead advantageous for low fluences. A large reduction in ablation depth per pulse is observed with an increasing number of pulses. The present work affords prediction of scribe and cut parameters for the processing of thin aluminium layers and, more generally, characterises the driving parameters of pulsed picosecond and nanosecond laser ablation of metals.
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Cheng, Gary J., Daniel Pirzada, Xin Ai, and Ben Li. "Numerical Simulation on Short Pulsed Laser Heating of Semiconductor Thin Films: The Case of GaAs." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-16214.

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The results of numerical simulation of heat transfer phenomena in GaAs thin films irradiated by a pulsed laser are presented. A numerical algorithm involving a discontinuous Galerkin finite element method for the solution of hyperbolic heat conduction is used to solve the dual-phase-lag heat conduction equation The effects of different process parameters on heat propagation are analyzed. The heat conduction mode after pulsed laser irradiation is strongly dependent upon the incident laser energy density, film thickness and pulse duration. The heat transfer behavior for nano-, pico- and femto- second pulses has been studied and compared. A wave-type heat transfer phenomena was observed when pulse duration is of the order of relaxation time of the material being heated. It was found that for sub-picosecond pulses, the heat transfer occurs only by a thermal shock wave.
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Chepusov, A. S., A. A. Komarskiy, S. R. Korzhenevskiy, and O. D. Krasniy. "Study of field electron emission properties of commercial graphite cathodes in pulse-repetitive mode." In VIII Information school of a young scientist. Central Scientific Library of the Urals Branch of the Russian Academy of Sciences, 2020. http://dx.doi.org/10.32460/ishmu-2020-8-0007.

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The article considers field emission cathodes from industrial graphites MG, MPG-7, and GMZ operated in the pulse-periodic mode with the pulse repetitionrate of 1 to 30 Hz. The operation of field emitters in the pulsed mode differs from operation at a constant voltage. Under stabilization of the high potential level, the amplitude of the pulses of the emission current decreases that leads to increasing the operating voltage in the pulsed mode. During operation of the graphite cathode (when the pulse current is recorded), the operating voltage at the anode stabilizes and oscillates within 5%. Operation in the direct current mode under similar conditions is accompanied by a change in the voltage value by more than 10 %.
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Beikmann, R. S., Noel C. Perkins, and A. G. Ulsoy. "Nonlinear Coupled Response of Serpentine Belt Drive Systems." In ASME 1993 Design Technical Conferences. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/detc1993-0036.

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Abstract This theoretical and experimental study identifies a key nonlinear mechanism that promotes strongly coupled dynamics of serpentine belt drive systems. Attention is focused on a prototype three-pulley system that contains the essential features of automotive serpentine drives having automatic (spring-loaded) tensioners. A theoretical model is presented that describes pulley and tensioner arm rotations, and longitudinal and transverse belt response. A recent investigation demonstrates that infinitesimal belt stretching creates a linear mechanism that couples transverse belt response to tensioner arm rotation. Here, it is further demonstrated that finite belt stretching creates a nonlinear mechanism that may lead to strongly coupled response in the presence of an internal resonance. Theoretical and experimental results confirm the existence of this nonlinear coupling mechanism. In particular, it is shown that very large transverse belt vibrations can result from small resonant torque pulses applied to the crankshaft or accessory pulleys.
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Reports on the topic "Pullet"

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Ragalwar, Ketan, William Heard, Brett Williams, Dhanendra Kumar, and Ravi Ranade. On enhancing the mechanical behavior of ultra-high performance concrete through multi-scale fiber reinforcement. Engineer Research and Development Center (U.S.), September 2021. http://dx.doi.org/10.21079/11681/41940.

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Steel fibers are typically used in ultra-high performance concretes (UHPC) to impart flexural ductility and increase fracture toughness. However, the mechanical properties of the steel fibers are underutilized in UHPC, as evidenced by the fact that most of the steel fibers pull out of a UHPC matrix largely undamaged during tensile or flexural tests. This research aims to improve the bond between steel fibers and a UHPC matrix by using steel wool. The underlying mechanism for fiber-matrix bond improvement is the reinforcement of the matrix tunnel, surrounding the steel fibers, by steel wool. Single fiber pullout tests were performed to quantify the effect of steel wool content in UHPC on the fiber-matrix bond. Microscopic observations of pulled-out fibers were used to investigate the fiber-matrix interface. Compared to the control UHPC mixture with no steel wool, significant improvement in the flexural behavior was observed in the UHPC mixtures with steel wool. Thus, the addition of steel wool in steel fiber-reinforced UHPC provides multi-scale reinforcement that leads to significant improvement in fiber-matrix bond and mechanical properties of UHPC.
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Kaertner, Franz X. Single-cycle Optical Pulses and Isolated Attosecond Pulse Generation. Fort Belvoir, VA: Defense Technical Information Center, February 2012. http://dx.doi.org/10.21236/ada565327.

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G. Shvets, N. J. Fisch, A. Pukhov, and J. Meyer-ter-Vehn. Pulse compression in plasma: Generation of femtosecond pulses without CPA. Office of Scientific and Technical Information (OSTI), July 2000. http://dx.doi.org/10.2172/758641.

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Olson, A. L. Development and testing of a rotary disc pulser for pulse column application. Office of Scientific and Technical Information (OSTI), October 1988. http://dx.doi.org/10.2172/6917841.

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Sprangle, Phillip, Joseph Penano, Bahman Hafizi, and Chris Kapetanakos. Ultrashort Laser Pulses and Electromagnetic Pulse Generation in Air and on Dielectric Surfaces. Fort Belvoir, VA: Defense Technical Information Center, July 2003. http://dx.doi.org/10.21236/ada416663.

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Dethlefsen, R. Design concepts for a pulse power test facility to simulate EMP surges. Part II. Slow pulses. Office of Scientific and Technical Information (OSTI), October 1985. http://dx.doi.org/10.2172/6280383.

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Pharaon, Jean W. Tracked Vehicle Road Wheel Puller. Fort Belvoir, VA: Defense Technical Information Center, February 2009. http://dx.doi.org/10.21236/ada496121.

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Volfbeyn, P., and W. P. Leemans. Guiding of high intensity ultrashort laser pulses in plasma channels produced with the dual laser pulse ignitor-heater technique. Office of Scientific and Technical Information (OSTI), July 1998. http://dx.doi.org/10.2172/666050.

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Pritzkau, David P. RF Pulsed Heating. Office of Scientific and Technical Information (OSTI), January 2002. http://dx.doi.org/10.2172/798978.

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Weber, Peter M. Ultrashort Electron Pulses. Fort Belvoir, VA: Defense Technical Information Center, November 1999. http://dx.doi.org/10.21236/ada378937.

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