Relevant bibliographies by topics / Collari

Academic literature on the topic 'Collari'

Author: Grafiati
Published: 11 March 2023

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Journal articles on the topic "Collari"

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Alibhai, Sky K., and Zoë C. Jewell. "Hot under the collar: the failure of radio-collars on black rhinoceros Diceros bicornis." Oryx 35, no. 4 (October 2001): 284–88. http://dx.doi.org/10.1046/j.1365-3008.2001.00196.x.

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AbstractRadio-collaring is widely used as a monitoring tool in the conservation of the black rhinoceros Diceros bicornis. We examined rates and causes of radio-transmitter collar failure on black rhino in the Sinamatella Intensive Protection Zone (IPZ), Zimbabwe, between September 1993 and February 2000. Two collar designs, hose and strap, were fitted on immobilized rhinos in four main collaring operations. Eighty nine collars were monitored: 28 hose and 61 strap. Within 12 months of placement, all hose collars had failed. Of the strap collars, 73 per cent of those on males and 44 per cent on females had failed within 12 months. Failure rates were significantly higher in males for both collar types. For strap collars older males had higher failure rates than younger males. There was some evidence of a higher failure rate of strap collars during the wet season. Thirteen per cent of strap and 4 per cent of hose collars were removed because of poor transmission; 15 per cent of strap collars were removed because of injury. The implications of collar failure rates and the use of radio-collaring as a routine protection and /or monitoring strategy are discussed.
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Persson, Hakon. "Neck collar retention in a Greylag Goose Anser anser population." Ornis Svecica 10, no. 3–4 (October 1, 2000): 155–60. http://dx.doi.org/10.34080/os.v10.22874.

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A total of 179 recaptures, obtained one to eleven years after collar placement, was used to estimate neck collar retention rates in a marked breeding population of Greylag Goose Anser anser in Scania, southernmost Sweden. Owing to a very high year-round re-sighting frequency, all calculations were made on the total time neck collars had been exposed to potential losses. The overall annual neck collar retention rate was 97.1±0.7%. The annual loss rate was four times higher in males than in females (5.5±1.5% vs 1.4±0.5%), twice as high among birds collared as goslings than among those collared as breeders, both in males (8.4±4.0% vs 4.6±1.6%) and in females (1.7±0.9% vs 0.7±0.7%) and markedly higher among individuals wintering in southwestern Spain than among those spending the winter elsewhere, both in males (9.1±3.1% vs 2.5±1.4%) and in females (2.3±1.1% vs 0.6±0.6%). Shooting was the main cause of neck collar loss, but most collars did not actually fall off until during the following breeding season. Suggestions are presented of how these results ought to influence the analysis of survival rates based on re-sightings of neck-collared individuals from this population.
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Hennig, Jacob D., J. Derek Scasta, Jeffrey L. Beck, Kathryn A. Schoenecker, and Sarah R. B. King. "Systematic review of equids and telemetry collars: implications for deployment and reporting." Wildlife Research 47, no. 5 (2020): 361. http://dx.doi.org/10.1071/wr19229.

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Abstract Data from animals equipped with global positioning system collars have advanced our understanding of vertebrates, but this technology has rarely been employed to study feral equids. Hesitation to equip feral equids with telemetry collars in the USA can often be attributed to safety concerns stemming from one study from the 1980s, where injuries were sustained by feral horses (Equus ferus caballus) equipped with radio-collars. Improvements in collar design over the ensuing quarter-century may have decreased risk of collar-related complications; however, telemetry-based studies on feral equids continue to be limited. In the present review, studies from wild and feral equids worldwide were systematically reviewed to better understand the mortality and injury risk in application of telemetry collars to equids. Our goals were to: (1) report the number of individual equids fitted with telemetry collars (1979–2017); and (2) document the number of individual equids that reportedly died or suffered injuries from collars or other sources. A comparative review of elk (Cervus canadensis), mule deer (Odocoileus hemionus) and pronghorn (Antilocapra americana) was also conducted to evaluate the relative risk of collar-related complications among equids and routinely collared North American ungulates. In total, 1089 wild and feral telemetered equids were identified across 48 studies. Of these, 87 (8.0%) were reported to have died, with only one (0.09%) mortality attributable to a collar. Comparatively, 23.0% (1095) of 4761 elk, mule deer and pronghorn fitted with telemetry collars were found to have died in the same number of studies, though no mortalities were reported to be related to the collar. Although wild and feral equids did not experience increased natural mortality compared with the other ungulates, studies have not provided sufficient information to assess relative risk of collar-related complications. Explicit reporting and discussion of telemetry collar impacts in future publications of all animal species are recommended, especially equids, to improve understanding of how telemetry collars can affect study individuals.
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Nelson, Michael E., and L. David Mech. "Wolves, Canis lupus, Carry and Cache the Collars of Radio-collared White-tailed Deer, Odocoileus virginianus, they Killed." Canadian Field-Naturalist 125, no. 1 (January 1, 2011): 67. http://dx.doi.org/10.22621/cfn.v125i1.1130.

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Wolves (Canis lupus) in northeastern Minnesota cached six radio-collars (four in winter, two in spring-summer) of 202 radio-collared White-tailed Deer (Odocoileus virginianus) they killed or consumed from 1975 to 2010. A Wolf bedded on top of one collar cached in snow. We found one collar each at a Wolf den and Wolf rendezvous site, 2.5 km and 0.5 km respectively, from each deer's previous locations.
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Colgan, D., D. McTague, P. O'Donnell, and E. G. Little. "Three-dimensional embedded strain gauge analysis of the effect of collared versus collarless prostheses on cement mantle stresses in a femoral model of a total hip replacement." Journal of Strain Analysis for Engineering Design 31, no. 5 (September 1, 1996): 329–39. http://dx.doi.org/10.1243/03093247v315329.

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Experimental and finite element analyses have attributed considerable significance to the role of the prosthetic collar in load transfer to the proximal femur; however, some clinical evidence suggests that collar/calcar contact is unnecessary and detrimental. This study investigates the effects of collared versus collarless prostheses on cement mantle stresses in a model analysis of the proximal femur. Three-dimensional embedded strain gauging is used in a three-times full-size model of an implanted left femur. Tensor stresses in the cement mantle are derived for a collarless Exeter™ stem, a small and a large medial-collared stem and a full-collared prosthesis. Results show that the collar causes an increase in proximal-medial compressive longitudinal stresses, with other proximal stresses significantly reduced. Subsidence of the stem in the cement mantle is prevented, inducing unfavourable pivoting of the prosthesis about the calcar into varus. The collar type produces only minor additional effects in the mechanism of load transfer. The analysis suggests that collars may inhibit the prosthesis from attaining long-term secondary stability, by preventing the stem subsidence evident with cemented collarless implants. Derived stresses also illustrate the considerable variation in the mechanism of load transfer between collared and collarless prostheses in both the proximal and distal regions.
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Pouliquen, Odile, Michelle Leishman, and Trevor D. Redhead. "Effects of radio collars on wild mice, Mus domesticus." Canadian Journal of Zoology 68, no. 7 (July 1, 1990): 1607–9. http://dx.doi.org/10.1139/z90-239.

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Experiments were conducted in the laboratory and in the field to test the effects of radio collars (1.7–1.9 g) on wild house mice (Mus domesticus). There was a decrease in the activity of the collared animals in the laboratory immediately after collar attachment. There were no adverse effects on social interactions in the laboratory, nor on survival for 4–5 days in the field. Provided that the collar is well adjusted, there should be no need to keep wild animals captive for more than 1 h after collar attachment. These results are consistent with those of other researchers on the effect of transmitters on some species of small mammals.
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Qin, Xiao, Shanshan Ya, Changan Yuan, Dingjia Chen, Long Long, and Huixian Liao. "MFANet: A Collar Classification Network Based on Multi-Scale Features and an Attention Mechanism." Mathematics 11, no. 5 (February 27, 2023): 1164. http://dx.doi.org/10.3390/math11051164.

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The collar is an important part of a garment that reflects its style. The collar classification task is to recognize the collar type in the apparel image. In this paper, we design a novel convolutional module called MFA (multi-scale features attention) to address the problems of high noise, small recognition target and unsatisfactory classification effect in collar feature recognition, which first extracts multi-scale features from the input feature map and then encodes them into an attention weight vector to enhance the representation of important parts, thus improving the ability of the convolutional block to combat noise and extract small target object features. It also reduces the computational overhead of the MFA module by using the depth-separable convolution method. Experiments on the collar dataset Collar6 and the apparel dataset DeepFashion6 (a subset of the DeepFashion database) show that MFANet is able to perform at a relatively small number of collars. MFANet can achieve better classification performance than most current mainstream convolutional neural networks for complex collar images with less computational overhead. Experiments on the standard dataset CIFAR-10 show that MFANet also outperforms current mainstream image classification algorithms.
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Fink, Heidi, Sara Wennogle, Wendell L. Davis, Cristiano Von Simson, and Michael R. Lappin. "Field comparison of tolerance of a collar containing 10.0% imidacloprid/4.5% flumethrin (Seresto) and a placebo collar placed on cats." Journal of Feline Medicine and Surgery 18, no. 12 (July 10, 2016): 1031–33. http://dx.doi.org/10.1177/1098612x15599824.

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Objectives A collar containing 10.0% imidacloprid/4.5% flumethrin (Seresto; Bayer Animal Health) controls flea and tick infestations for 8 months and is effective in preventing transmission of Bartonella henselae and Cytauxzoon felis among cats. The purpose of this study was to compare tolerance of client-owned cats for the 10.0% imidacloprid/4.5% flumethrin collar or a physically identical placebo collar. Methods A total of 96 client-owned cats were enrolled in the study. Cats that were systemically ill, of hairless breed or declawed in all four limbs were excluded. Cats were randomized by household to wear a placebo collar for 14 days followed by the 10.0% imidacloprid/4.5% flumethrin collar for 14 days or the 10.0% imidacloprid/4.5% flumethrin collar for 28 days. Examinations by a veterinarian were performed on days 0, 14 and 28. Owners recorded daily systemic and local health observations. Results All but two cats, including one that entrapped the mandible in the collar and one that developed local pyodermatitis (10.0% imidacloprid/4.5% flumethrin collar), completed the 28 day study. The majority of the local lesions or licking associated with the collars occurred in the first 14 days, and licking (but not skin lesions) was more common in cats wearing the 10.0% imidacloprid/4.5% flumethrin collars. No local lesions were reported for placebo cats after switching to the 10.0% imidacloprid/4.5% flumethrin collar, and only one cat wearing the 10.0% imidacloprid/4.5% flumethrin collar had reports of licking after day 14. Housing status, single or multiple cat household, and whether a collar had been worn previously were not associated with side effects. Conclusions and relevance Adverse events detected for cats wearing 10.0% imidacloprid/4.5% flumethrin collars were similar to those for cats wearing placebo collars and to cats wearing identification collars in a separate study. The data suggest that most cats originally intolerant of collars become receptive over time.
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Mech, L. David. "Gray Wolf (Canis lupus) Movements and Behavior Around a Kill Site and Implications for GPS Collar Studies." Canadian Field-Naturalist 125, no. 4 (August 13, 2012): 353. http://dx.doi.org/10.22621/cfn.v125i4.1263.

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Global Positioning System (GPS) radio-collars are increasingly used to estimate Gray Wolf (Canis lupus) kill rates. In interpreting results from this technology, researchers make various assumptions about wolf behavior around kills, yet no detailed description of this behavior has been published. This article describes the behavior of six wolves in an area of constant daylight during 30 hours, from when the pack killed a Muskox (Ovibos moschatus) calf and yearling on Ellesmere Island, Nunavut, Canada, to when they abandoned the kill remains. Although this is only a single incident, it demonstrates one possible scenario of pack behavior around a kill. Combined with the literature, this observation supports placing a radio-collar on the breeding male to maximize finding kills via GPS collars and qualifying results depending on whatever other information is available about the collared wolf’s pack.
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Juarbe-Diaz, SV, and KA Houpt. "Comparison of two antibarking collars for treatment of nuisance barking." Journal of the American Animal Hospital Association 32, no. 3 (May 1, 1996): 231–35. http://dx.doi.org/10.5326/15473317-32-3-231.

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Two commercially available antibarking collars (i.e., a citronella spray collar and an electronic shock collar) were evaluated for efficacy and user satisfaction as reported by owners after a two-week trial period for each collar. While both collars were effective in decreasing barking (88.9% for the citronella spray collar and 44.4% for the electronic shock collar), most owners expressed a preference for the citronella spray collar. Owners perceived it as being more humane and indicated that they willingly would use it on a long-term basis to decrease their dogs' nuisance barking. While the citronella spray collar has some drawbacks, it is another tool for managing excessive barking.
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Dissertations / Theses on the topic "Collari"

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Ventolini, Nicola. "La popolazione di Cignoreale nella zona costiera del Friuli Venezia Giulia." Doctoral thesis, Università degli studi di Trieste, 2008. http://hdl.handle.net/10077/2655.

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2006/2007
L’organo gestore (SBIC, Stazione Biologica Isola della Cona) della Riserva Naturale Regionale della Foce dell’Isonzo,collaborando con il Dipartimento di Biologia dell’Università degli Studi di Trieste, ha avviato una ricerca di carattere eco-etologico al fine di analizzare l’attuale stato della specie e le possibili problematiche relative all’incremento della popolazione della zona costiera del Friuli Venezia Giulia. Obiettivo sarà mettere in luce l’andamento stagionale della popolazione per comprendere in che misura essa è costituita da individui stanziali e quanto da individui erratici, che frequentano l’area periodicamente. Analizzeremo la valenza delle diverse aree per l’attività trofica e durante le fasi di muta, nidificazione e svernamento. Dal monitoraggio degli individui marcati con collare colorato ci si propone di capire le dinamiche individuali e di popolazione nell’alto Adriatico e le possibili rotte da e verso altre popolazioni estere. Esamineremo nel dettaglio la riproduzione ed il successo riproduttivo della specie, al fine di quantificare l’attuale trend della popolazione, in che misura è determinato dai pulli nati in regione e quanto da afflussi da zone esterne. Indagheremo le peculiarità tra i siti di nidificazione a struttura territoriale e coloniale nonché la frequenza del polimorfismo immutabilis nei pulli e la sua rilevanza sull’involo dei giovani. Al fine di comprendere la pressione dell’attività trofica della specie sulle praterie di fanerogame analizzeremo gli spostamenti dello stormo della foce dell’Isonzo.
XX Ciclo
1976
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Collard-Fréchette, Etienne. "Optimisation des plages dynamiques des convertisseurs analogique-numérique Sigma-Delta." Mémoire, École de technologie supérieure, 2012. http://espace.etsmtl.ca/984/1/COLLARD%2DFR%C3%89CHETTE_%C3%89tienne.pdf.

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Les convertisseurs Sigma-Delta combinent les techniques de mise en forme du bruit de quantification et du suréchantillonnage du signal pour diminuer l’impact du bruit de quantification sur le rapport signal à bruit (SNR). Pour maximiser les performances des convertisseurs, de nombreux paramètres doivent être optimisés durant le processus de conception. La problématique principale de cet ouvrage est l’optimisation des coefficients interétage dumodulateur Sigma-Delta. Ces coefficients peuvent être utilisés pour réduire l’amplitude de sortie des intégrateurs, ce qui permet de réduire la distorsion harmonique ainsi que la consommation en puissance. Cependant, le bruit thermique généré par chaque étape d’intégration est amplifié ce qui réduit le SNR à la sortie du convertisseur. Un compromis acceptable est habituellement atteint au terme d’un processus de conception intuitif après quelques itérations de simulations. Ce mémoire présente deux nouvelles techniques d’optimisation des convertisseurs Sigma- Delta. La première, appelée méthode des fenêtres, se concentre à minimiser l’amplitude de sortie des intégrateurs en fonction d’une pénalité en SNR. Il s’agit d’un processus itératif qui s’exécute à l’intérieur d’une fenêtre d’opération. La seconde méthode utilise une fonction d’optimisation multicritère afin de minimiser simultanément l’amplitude de sortie des intégrateurs et la somme des capacités du modulateur. La réduction de la taille des capacités permet de réduire la taille du circuit et la puissance consommée. Chacune de ces deux méthodes est illustrée par un exemple d’utilisation. Avec la méthode des fenêtres, l’amplitude de sortie des intégrateurs est davantage réduite. Cependant, cela est obtenue au prix d’une augmentation significative de la somme des capacités du modulateur. La méthode de minimisationmulticritère peut facilement s’intégrer au processus de conception au niveau système en remplaçant la fonction Matlab généralement utilisée pour effectuer la mise à l’échelle des plages dynamique. Afin de valider la méthode de minimisation multicritère, des simulations au niveau transistors sont effectuées sur trois configurations différentes. Les deux premières sont issues du processus d’optimisation, l’une favorisant la réduction de l’amplitude des intégrateurs tandis que l’autre favorise la réduction de la taille des capacités. La troisième configuration, issue d’un processus de conception standard, sert de point de référence. Les résultats de ces simulations démontre qu’une configuration optimisée en priorisant la minimisation de l’amplitude des intégrateurs obtient les meilleures performances. Le SNR maximal est supérieur de 3,8 dB et la plage dynamique est supérieure de 2 dB par rapport aux perfomances de la configuration de référence.
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Bethune, Richard Alan. "Profiling white-collar criminals : what is white-collar crime, who perpetrates it and why?" Thesis, University of Edinburgh, 2015. http://hdl.handle.net/1842/10609.

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Following a period of resurgence in academic interest in the subject over the last 30-40 years, white-collar crime has found greater prominence within criminology. Efforts over this period have however failed to produce a single satisfactory and agreed-upon definition, a consistent and coherent body of research, and a single theory which can account for all forms of white-collar crime. This thesis aims to address certain shortcomings in the current state of white-collar crime theory and understanding. Part 1) addresses the issues of both conceptual definition of white-collar crime and specific behaviours as proscribed within the Legislation. Part 2) examines current criminological theory and research on individual differences (arguably the biggest gap in current knowledge in the area of white-collar crime); it examines the origins and current state of offender profiling in crime prevention, before Part 3) presents original research on establishing offence-specific white-collar criminal profiles based on demographic, sociological, psychological, organisational and motivational factors. Part 4) examines why certain individuals may perpetrate certain crimes in certain situations, beginning with a review of those few white-collar crime specific theories that do exist, before reviewing traditional sociological theories and attempting to apply them to white-collar crime; finally in Part 5) a new conceptual framework for white-collar crime is presented, which is referred to as the theory of ‘Differential Assimilation’. I bring together each of these chapters and situate the thesis within current research and literature, summarising how it engages and contributes to the field of white-collar crime. I include suggestions for the practical application of certain white-collar crime prevention techniques within organisations.
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Olid, Rodríguez Christian Ignacio. "Blue-Collar crime and finance." Tesis, Universidad de Chile, 2018. http://repositorio.uchile.cl/handle/2250/151527.

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Feesey, Terrence James. "An investigation of variables influencing the experience of unemployment for blue collar and white collar workers." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/26811.

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This study was designed to probe the experience of white collar unemployment. Some research results suggest that white collar people have an easier time with unemployment than do blue collar people while other findings suggest the contrary. A questionnaire format instrument was designed to record self-reported changes of an affective and behavioural nature in a sample of 66 white collar and 24 blue collar unemployed adults. It was hypothesized that on the whole, the blue collar sample would report a more difficult response to unemployment than the white collar sample. It was further hypothesized that after an unspecified period of time the unemployed white collar sample would become passive and depressed. Twelve variables focusing on learned helplessness, self-esteem, depression, locus of control, social interaction, time structure, personal meaning and perceived measures of health and finances were recorded and intercorrelated in this relationship study. Correlation matrices were constructed for the general sample, the white collar and the blue collar sub-samples. Reliability and validity coefficients of the instrument were calculated on each variable and were found to be acceptable for the purpose of this study. The relationships among the variables supported the notion that generally, the people in the blue collar unemployed sample experienced more difficulty with unemployment than did those people in the white collar sample. The white collar sample subjects did not, however, show a significant disposition toward passivity and depression as a function of time. Instead, the data suggested the presence of a second white collar subgroup who appeared to be experiencing great personal difficulties regardless of the duration of their unemployment. It was suggested that the appearance of a bi-modal white collar sample was the result of the sampling technique, and further that these results may reflect the state of the real world. This position is offered as a possible justification for the contradictory white collar unemployment findings in the past.
Education, Faculty of
Educational and Counselling Psychology, and Special Education (ECPS), Department of
Graduate
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Kundu, Ina, Sean Rice, Kevin Klug, Hao Chen, Elizabeth Marquez, and Yizhou Zhong. "Collar-Integrated Small Mammal GPS Tracker." International Foundation for Telemetering, 2013. http://hdl.handle.net/10150/579699.

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ITC/USA 2013 Conference Proceedings / The Forty-Ninth Annual International Telemetering Conference and Technical Exhibition / October 21-24, 2013 / Bally's Hotel & Convention Center, Las Vegas, NV
A position beaconing system for tracking small mammals, such as the Golden Lion Tamarin, was developed and tested. GPS acquires location of the animal. The system utilizes a VHF radio transmitter tuned to 144.390 MHz, which is located in the amateur radio band. APRS was selected as the protocol for position, transmission, and recovery. This allows users to benefit from any existing APRS enabled devices. The beacon was designed by attempting to optimize operational longevity and minimize size. Consequently, the system is implemented on a single board and enclosed for protection. As the system must be comfortable for the mammal, it was manufactured from lightweight components and enclosed in a plastic housing. To attach the case to the mammal, it is connected to a flexible, zig-zag, wearable antenna, which functions as a collar.
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Mascolo, Robert. "The significance of white-collar crime /." Staten Island, N.Y. : [s.n.], 2004. http://library.wagner.edu/theses/business/2004/thesis_bus_2004_masco_signi.pdf.

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Kim, Carolyn Y. "The fit of men's dress shirt collars." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-08042009-040404/.

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Schaesberg, Petrus. "Konzept der Collage." Diss., lmu, 2004. http://nbn-resolving.de/urn:nbn:de:bvb:19-23721.

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Stout, Deborah Marie Schuda. "Graphing Beyond Collatz." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1366226820.

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Books on the topic "Collari"

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Blue collar, white collar, no collar: Stories of work. New York: Harper Perennial, 2011.

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Esau, Terry. Blue collar God: White collar God. Nashville, Tenn: W Pub. Group, 2001.

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Cyril Collard. [Paris]: Flammarion, 1995.

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Publishing, Fox Chapel. Necklines & collars. East Petersburg, PA: Fox Chapel Pub., 2011.

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Hayden, Mark. Changing collars. Dublin: Columba Press, 2007.

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Monti, Rosanna Bertacchi. Il collare. Bergamo: P. Lubrina, 1991.

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Lubrano, Alfred. Limbo: Blue-collar roots, white-collar dreams. New York: Wiley, 2003.

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Lubrano, Alfred. Limbo: Blue-collar roots, white-collar dreams. Hoboken, NJ: Wiley, 2004.

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Schrader, Paul. Blue collar. Hollywood: Script City, 1990.

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Brigstocke, Marcus. God collar. London: Bantam Press, 2011.

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Book chapters on the topic "Collari"

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McConnell, Larissa. "Collars." In Foundations of Flat Patterning and Draping, 217–27. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003022619-13.

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Abbasi, Adeel, Francis DeRoos, José Artur Paiva, J. M. Pereira, Brian G. Harbrecht, Donald P. Levine, Patricia D. Brown, et al. "C-Collar." In Encyclopedia of Intensive Care Medicine, 513. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-00418-6_3056.

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Krafsur, E. S., R. D. Moon, R. Albajes, O. Alomar, Elisabetta Chiappini, John Huber, John L. Capinera, et al. "Flea Collar." In Encyclopedia of Entomology, 1474. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6359-6_5041.

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Taştan, Seçil. "White-Collar Criminals and Organizational Criminology." In Advances in Library and Information Science, 296–322. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-6310-5.ch016.

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From a multidisciplinary view, this chapter presents a conceptualization of white-collar criminality and enables understanding the psychological, organizational, and situational motives behind white-collar crimes. This chapter is noteworthy for integrating environmental, psychological, and situational factors influencing the white-collars to engage in crimes in organizations. Specifically, in the study, organization-based situational variables such as perceived ethical climate and opportunities for rule bending are examined among potential antecedents of white-collar crimes. This study enhances organizations to recognize their code of conducts and ethical climate aspects and helps to understand the causes of rule bending and criminal behaviors among white-collars. Further, the chapter provides implications for the practice and the academics regarding the importance of developing effective business ethics codes, prevention issues, and creating a strong ethical climate.
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"Collars and Reverse-Collars." In Option Spread Strategies, 64–93. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118531631.ch3.

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"Collars." In The Complete Book of Option Spreads and Combinations, 139–54. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118819326.ch9.

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"Collars." In Apparel Manufacturing Technology, 273–80. Boca Raton : Taylor & Francis, a CRC title, part of the Taylor &: CRC Press, 2016. http://dx.doi.org/10.1201/9781315367507-16.

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"Collars." In Pattern Cutting and Making Up, 102–30. Routledge, 2012. http://dx.doi.org/10.4324/9780080937946-11.

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Sharma, Akhilesh, and Chanchal Rana. "Collard." In Vegetable Crops Science, 335–44. CRC Press, 2017. http://dx.doi.org/10.1201/9781315116204-37.

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"collar." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 251. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_33158.

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Conference papers on the topic "Collari"

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Ewing, Cameron. "Development of Stress Intensification Factors for Collared Type Piping Joints." In ASME 2020 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/pvp2020-21255.

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Abstract Stress Intensification Factors or SIFs allow piping to be analyzed using beam theory, with a SIF representing local effects of specific piping geometry. However, the current piping codes do not explicitly provide SIFs for collared type piping joints for use in pipe stress calculations. The objective of this paper is to describe the methodology on how a finite element analysis (FEA) was to model the behavior of collared joints, and to ultimately develop appropriate SIFs that can be used in pipe stress analyses. This paper describes a real-life analysis example on collared joints installed on a set of existing fuel transfer lines. The lines, which ranged in size from DN200 to DN350, were concrete lined carbon steel with the collars fillet welded to the carbon steel section of the piping. Test coupons cut from existing pipe-collar sections were tested in a laboratory to determine the forces required to break the collar welds. Using FEA, the same test coupons were modelled to replicate the failure tests. Multiple iterations were undertaken to determine an appropriate bi-linear stress-strain curve fit for the weld material. The curves of different weld electrode materials were considered. The curve which lead to results similar to those observed in physical testing was selected. From this, a failure stress across the weld could be determined. This stress, 435MPa was then used in subsequent models to determine the point at which the weld fails under bending loads. Multiple tests were analyzed to allow for possible effects of inclusions and voids. Finite element models of the collar geometries were constructed and non-linear analyses were undertaken using the weld strengths determined from the coupon testing data. A simple cantilever type arrangement with a point load at one end was analyzed, inducing a bending moment across the collar. The peak stress resulting from the bending moment across the collar weld at the center of the cantilevered pipe arrangement, was investigated across various pipe diameters, wall thicknesses, weld sizes and collar geometries. Based on the results, a relationship between the pipe geometry and SIF was developed. Hence a pipe stress model of the transfer lines could ultimately be developed using these SIFs to predict the behavior of the piping.
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Zeng, Yan, Tat Loon Chng, and Her Mann Tsai. "Experimental Investigation Of Collared Jets With Different Collar Exit Geometries." In 37th AIAA Fluid Dynamics Conference and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2007. http://dx.doi.org/10.2514/6.2007-4496.

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Kang, Kyungdae. "Dynamic Model Development and Analysis of Multiple Rotors Coupled With Thrust Collars." In ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-76392.

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The core model of integrally geared centrifugal compressor/expander equipped with thrust collars is developed using finite element model. Each rotor model is coupled through the equivalent stiffness due to thrust collar and the gear web. Subsynchronous vibration caused by the transmitted frequency components from other shafts is analyzed through forced vibration analysis. Unlike conventional frequency response function (FRF), directional FRF technique is adopted because rotordynamic analysis requires that forward and backward mode responses should be identified according to the rotational force direction exerted on the rotor. Previous analysis results utilizing 3D FE model of geared rotors equipped with thrust collars revealed that transmitted vibration level is mostly affected by thrust collars, rather than gear tooth. The rotordynamic model developed in this paper ensures reliability and efficiency in the multi-rotor design equipped with thrust collars providing a systematic way to analyze the multi-rotor vibration responses due to the transmitted forces from one shaft to the other.
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Tang, Hung-Jie, and Ray-Yeng Yang. "Hydrodynamic Behaviors of Aquaculture Net Cages After the Successive Mooring Lines Failure." In ASME 2021 40th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/omae2021-62253.

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Abstract This paper aims to study the successive mooring line failure (also known as the domino effect) and the collision between floating collars for aquaculture net cages subjected to currents. The numerical model of this study is developed based on the Morison equation and the lumped-mass scheme in the time domain. This model is then applied to see if the domino effect of moorings will happen after releasing the anchor point #1 on the upstream side. In this study, we adopt four different current speeds (0.5, 1.0, 1.5, 2.0 m/s) and three different safety factors (SF, 1.0, 1.5, 2.0) settings to calculate the number of mooring failures, and to see whether it will cause floating collars collision. The results show that in the case of the SF is 2.0, the domino effect will not be triggered, and the floating collar collision will not occur. When the SF is 1.5, and the current speed is up to 1.0 m/s or higher, only the two anchor points on the upstream side will fail and no collision will occur. However, if the SF is not considered (that is, 1.0), the domino effect will occur under all the four current speeds, and the floating collar collision will all occur. Therefore, we suggest that in order to avoid the domino effect of the mooring system of aquaculture net cages from currents, the SF of the mooring system design must be at least 2 times.
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de Sousa, Jose´ Renato M., Carlos Magluta, Ney Roitman, Gilberto B. Ellwanger, Edison C. P. Lima, and Arnaldo Papaleo. "Analysis of the Response of Flexible Risers to the Loads Imposed by Hydraulic Collars." In ASME 2003 22nd International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2003. http://dx.doi.org/10.1115/omae2003-37039.

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Despite being largely used to install flexible risers, neither the loads imposed by hydraulic collars nor the response of the flexible riser to these loads have been previously studied. Hence, this paper aims at presenting a finite element (FE) model to calculate not only the loads imposed by a typical hydraulic collar to a flexible riser, but also the response of this structure to the imposed loads. A 9,5” flexible riser is analyzed and the obtained results are compared to the ones from experimental tests carried out by PETROBRAS and COPPE/UFRJ.
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Bai, Xiao-Dong, Yun-Peng Zhao, Guo-Hai Dong, and Chun-Wei Bi. "Investigation on the Probabilistic Distribution of the Stress Range of Net Cage Floater of Fish Cage for Fatigue Life Prediction." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-78760.

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The failure risk of fish cages has increased in the harsher environmental conditions as fish farms have moved into the open sea in recent years. Fatigue failure is an important limit state for the floating system of the fish cage under the long-term action of waves. This study is presented to investigate the applicable probability density function for estimating fatigue life of the high-density polyethylene (HDPE) floating collars. The stress response of the floating collars system in random wave is firstly analyzed based on the finite element analysis combined with a hydrodynamic model. The stress histories of floating collars under each sea state are counted using the rainflow method as a benchmark for fatigue frequency domain analysis. The distribution of stress range was fitted by various probability density functions including Rayleigh, Weibull, Gamma and generalized extreme value (GEV) distributions. Comparisons of the estimated fatigue life using different distributions with rainflow statistic results were performed. Results indicate fatigue estimation based on the GEV and Gamma distributions by removing the negligible low stress range give much more accurate fatigue damage results of the short-term stress range distribution. While Weibull distribution overestimates the fatigue lifetime of the floating collar based on the short-term distribution of stress ranges.
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Herke, Patrick, Abhishek Kumar, and Hunter B. Gilbert. "Using Granular Jamming and a Parallel Compliant Mechanism to Provide a Rapidly Deployable, Custom-Fitted Cervical Collar." In ASME 2022 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/imece2022-94672.

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Abstract Cervical collars are medical devices commonly used to restrict motion of the cervical spine after trauma or surgical intervention. Improvements to the kinematic adjustability of collars and the rigidity of the contact surface between the patient’s body and the collar would result in better restriction of motion while maintaining comfort and fit. This paper reports on the initial design and prototyping of a new design concept for cervical collars consisting of pouches of granular material along the inside of two rings which are of similar geometry to the neck. The rings are connected by six adjustable length struts, analogous to the classical Stewart-Gough platform. Granular jamming is a reversible process in which a bladder containing a granular material, such as coffee grounds, becomes stiff when a vacuum is drawn on it. Thus, the pouches allow for a moldable interface with the neck with adjustable rigidity. The 3D printed rings are designed to accommodate the geometry of individual wearers by flexure hinges approximating a continuously deformable structure. The geometry of the rings was selected by surface modeling of the body geometry followed by extraction of coordinate curves and flattening. The struts provide patient specific adjustments for neck height and variance in head shape.
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Marzo, Asier, and Oscar Ardaiz. "CollARt." In the 21st ACM international conference. New York, New York, USA: ACM Press, 2013. http://dx.doi.org/10.1145/2502081.2502154.

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Bhalla, Kenneth, Lixin Gong, and George McKown. "Implementation of a Bottom-Hole Assembly Program." In ASME 2007 26th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2007. http://dx.doi.org/10.1115/omae2007-29467.

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A state of the art windows graphical user interface (GUI) program has been developed to predict and design the bottom-hole assembly (BHA) performance for drilling. The techniques and algorithms developed in the program are based upon those developed by Lubinski and Williamson. The BHA program facilitates in conducting parametric studies, and in making field decisions for optimal performance. The input parameters may include: formation class, dip angle, hole size, drill collar size, number of stabilizers, stabilizer spacing. The program takes into consideration bit-formation characteristics and interaction, drill collar sizes, square collars, shock absorbers, MWD tools, reamer tools, directional tools, rotary steerable systems etc. The output may consist of hole curvature (build up or drop rate), hole angle, weight on bit and is presented in drilling semantics. Additionally, the program can perform mechanical analyses and solve for the bending moments and reactions forces. Moreover, the program has the capability to predict the wellpath using a drill ahead algorithm. The program consists of a mathematical model which makes assumptions of 2-D, static, constant hole curvature resulting in a robust computationally efficient tool that produces rapid reliable results in the field.
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Taghipour, Ali, Jan David Ytrehus, and Anna Stroisz. "Casing Removal Tests in Laboratory Setup." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-77875.

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Through the life-time of a production field in the offshore petroleum industry it is normal to drill several new wells for both production and injection purposes. The initial well template, either at the platform or at a subsea installation, has space for a fixed total number of wells. When this limit is reached an old well needs to be plugged and the well slot reused to allow new wells to be drilled. In order to re-use well slots and benefit from full diameter when constructing the new well, it is required to remove the tubulars in the upper part of the plugged well. The outside of these tubulars are normally in contact with cement or settled particles from shut-in drilling fluids. Removing the tubular through the cement or settled particle is always challenging and there is need for using new techniques. In order to address the dominating effects in these operations, down-scaled laboratory tests are performed. The experiments reported here are performed by pulling steel pipes out of a cemented annulus. The pipes used in the tests are down-scaled from typical casing sizes. They are either normal pipes, grooved pipes or pipes with and without collars. Two setups with different geometries are used. The first is selected to study the de-bonding effect from the cemented annulus and the mechanical friction that must be overcome to remove the pipe. The other setup is designed to show the effect of collars when pulling out the tubulars. Since most tubulars in wells have collars between each stand with extended diameter, this effect is important to consider when comparing laboratory results to field operations. Results show that the loosening force (de-bonding) and pulling force can be significantly reduced by manipulating the pipes with grooves prior to pulling them out. Further, the results show that the most significant resistance when pulling the tubulars are caused by the collars outside the pipe. It is also observed that the effect of collar is significantly reduced when the pipe is grooved between the collars. In total these results provide improved understanding on the dominating effects when pulling pipes from packed wellbore annulus.
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Reports on the topic "Collari"

1

Menlove, Howard Olsen, William H. Geist, Margaret A. Root, and Sarah Elizabeth Sarnoski. Experimental Evaluation of the Fast-Neutron Passive Collar (FNPC) Performance and Comparison with Scintillation Based Collars. Office of Scientific and Technical Information (OSTI), December 2019. http://dx.doi.org/10.2172/1578024.

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Hu, Jianwei, Stephen Croft, and Robert Dennis McElroy. Boron-Coated Straw Collar for Uranium Neutron Coincidence Collar Replacement. Office of Scientific and Technical Information (OSTI), January 2017. http://dx.doi.org/10.2172/1339397.

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Dixon, Marvin W., and Joseph B. Long. Automated Shirt Collar Manufacturing. Volume 2. Collar Band Folding and Fixing. Fort Belvoir, VA: Defense Technical Information Center, June 1992. http://dx.doi.org/10.21236/ada267967.

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Prasad, M. K., D. Shumaker, N. Snyderman, J. Verbeke, and J. Wong. Prototype Stilbene Neutron Collar. Office of Scientific and Technical Information (OSTI), October 2016. http://dx.doi.org/10.2172/1333398.

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Paul, F. W. Robot Assisted Material Handling for Shirt Collar Manufacturing - Automated Shirt Collar Manufacturing. Fort Belvoir, VA: Defense Technical Information Center, June 1992. http://dx.doi.org/10.21236/ada268284.

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Prasad, Manoj K., Phil Kerr, Steven Sheets, Dan Shumaker, Jerome M. Verbeke, and James L. Wong. Prototype Stilbene Neutron Collar II. Office of Scientific and Technical Information (OSTI), August 2018. http://dx.doi.org/10.2172/1470703.

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Geist, William H., Daniela Henzlova, and Howard Olsen Menlove. Boron-lined parallel-plate Collar. Office of Scientific and Technical Information (OSTI), September 2016. http://dx.doi.org/10.2172/1329605.

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Dillender, Marcus, and Eliza Forsythe. Computerization of White Collar Jobs. W.E. Upjohn Institute, August 2019. http://dx.doi.org/10.17848/wp19-310.

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Bernales, Alejandro, Diether W. Beuermann, Douglas Cumming, and Christian Olid. Blue-Collar Crime and Finance. Inter-American Development Bank, June 2019. http://dx.doi.org/10.18235/0001745.

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Dillender, Marcus, and Eliza Forsythe. Computerization of White Collar Jobs. Cambridge, MA: National Bureau of Economic Research, March 2022. http://dx.doi.org/10.3386/w29866.

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