Готові списки джерел за темами / Wire of small diameter

Добірка наукової літератури з теми "Wire of small diameter"

Автор: Grafiati
Опубліковано: 30 травня 2022
Оновлено: 31 травня 2022

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Статті в журналах з теми "Wire of small diameter"

1

Kuroda, K., T. Kuboki, Y. Imamura, and C. Hayashi. "Design evaluation of multiroll mills for small-diameter wire rolling." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 215, no. 1 (January 1, 2001): 77–86. http://dx.doi.org/10.1243/0954406011520535.

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A comprehensive study on the evaluation of mill designs was carried out for three types of multiroll mill for wire rolling by using both prototype mills and numerical experiments. The laboratory experiments were carried out in order to examine both the deformation and loading characteristics of two-, three- and four-roll mills using a set of rolls of the same diameter. As a result, the data allow a direct comparison of the rolling characteristics among the three types of mill, which is not found in previous work. The analytical results showed a good matching with the experimental results, and evaluation was then carried out on the three mills. It has been found that the four-roll mill ensures the highest reduction and the two-roll mill the lowest reduction under the restriction that certain dimensional precision of the rolled wire be maintained. This tendency becomes greater as wire diameter decreases and in practice it is recommended that a four-roll mill equipped with small-diameter rolls be used when rolling small-diameter wire. As regarding the loading characteristics, similar conclusions apply. Finally, domains were determined where four-roll mills show their marked superiority.
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2

Torra, Vicenç, Sara Casciati, and Michele Vece. "Shape Memory Alloys Wires: From Small to Medium Diameter." Advances in Science and Technology 101 (October 2016): 79–88. http://dx.doi.org/10.4028/www.scientific.net/ast.101.79.

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The use of Shape Memory Alloys in dampers devices able to reduce the wind, rain or traffic induced oscillations in stayed cables is well represented in the literature. An analysis realized on standard cables at existing facilities shows the reliable efficiency of the SMA wire in damping oscillations. Such studies also provide tools to build the SMA dampers and to account for the effects of the external temperature in the SMA. The particular study reported in this paper focuses on a critical discussion on the relation between the wire diameter and macroscopic behavior and external temperature effects. The damping requires the absorption of the mechanical energy and its conversion to heat via the action of hysteresis cycles. The study was realized on wires of different diameters. In particular, the study centers on wires of diameter 0.2, 0.5 and 2.46 mm. The flat cycles showed by the thin wires (i.e., diameter 0.2 and 0.5 mm) and the non-classical S-shaped cycles of wires of diameter 2.46 mm establish clear differences of the response under external summer-winter temperature actions. Depending of the room temperature and SMA composition, a complete flat transformation in thin wires requires stresses, in general, near 300-400 MPa. A complete transformation for an S-shaped cycle need stresses as higher as 600 MPa. The analysis of the behavior of these wires under the action of warm temperatures in summer and cold temperatures in winter, suggests that thin wires lose their pseudo-elastic state in winter. The S-shaped permits positive working in extended temperature domain and a supplementary investigation establishes that S-shaped can be increased by strain aging. The hysteretic behavior in S-shaped permits practical working under external temperatures as applications in bridges require. From a fundamental point of view, the flat cycles are coherent with the classical treatment of the SMA as a first order phase transition but the S-shaped can be considered associated to an anomaly in heat capacity.
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3

Kar, Soumen, Wenbo Luo, and Venkat Selvamanickam. "Ultra-Small Diameter Round REBCO Wire With Robust Mechanical Properties." IEEE Transactions on Applied Superconductivity 27, no. 4 (June 2017): 1–4. http://dx.doi.org/10.1109/tasc.2017.2669727.

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4

Raoof, M., and I. Kraincanic. "Critical examination of various approaches used for analysing helical cables." Journal of Strain Analysis for Engineering Design 29, no. 1 (January 1, 1994): 43–55. http://dx.doi.org/10.1243/03093247v291043.

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Using theoretical parametric studies covering a wide range of cable (and wire) diameters and lay angles, the range of validity of various approaches used for analysing helical cables are critically examined. Numerical results strongly suggest that for multi-layered steel strands with small wire/cable diameter ratios, the bending and torsional stiffnesses of the individual wires may safely be ignored when calculating the 2 × 2 matrix for strand axial/torsional stiffnesses. However, such bending and torsional wire stiffnesses are shown to be first order parameters in analysing the overall axial and torsional stiffnesses of, say, seven wire stands, especially under free-fixed end conditions with respect to torsional movements. Interwire contact deformations are shown to be of great importance in evaluating the axial and torsional stiffnesses of large diameter multi-layered steel strands. Their importance diminishes as the number of wires associated with smaller diameter cables decreases. Using a modified version of a previously reported theoretical model for analysing multilayered instrumentation cables, the importance of allowing for the influence of contact deformations in compliant layers on cable overall characteristics such as axial or torsional stiffnesses is demonstrated by theoretical numerical results. In particular, non-Hertzian contact formulations are used to obtain the interlayer compliances in instrumentation cables in preference to a previously reported model employing Hertzian theory with its associated limitations.
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5

AMANO, Kazuya, Yasutake HARAMIISHI, and Shinsaku HAGIWARA. "Small diameter pipe polishing based on development of Wire polishing tool." Proceedings of Yamanashi District Conference 2017 (2017): 354. http://dx.doi.org/10.1299/jsmeyamanashi.2017.354.

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6

Gajda, D., A. J. Zaleski, A. Morawski, T. Cetner, and M. Rindfleisch. "The Influence of Wire Bending and Wire Diameter on Transport Critical Current Density in Small MgB2 Superconducting Coils for Applications in Multi-Section Coils." Journal of Superconductivity and Novel Magnetism 33, no. 11 (August 3, 2020): 3395–99. http://dx.doi.org/10.1007/s10948-020-05623-x.

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Abstract This article presents the impact of MgB2 wire bending and diameter on transport critical current density and irreversible magnetic field of a resultant coil. Unreacted MgB2 wires 500 mm in length and 0.63 or 0.83 mm in diameter have been used in the fabrication of small diameter (14 mm) superconducting coils. The coils were subsequently annealed under isostatic pressure of 1 GPa for 15 min at 700 °C and 725 °C. Our results indicate that larger wire diameter, higher annealing temperature, and bending lead to slight reduction of critical current density and irreversible magnetic field in the coil.
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7

Hanke, L. D., and K. Schenk. "Sputter etching for microstructure evaluation of small-diameter corrosion-resistant MP35N alloy wire." Proceedings, annual meeting, Electron Microscopy Society of America 54 (August 11, 1996): 1038–39. http://dx.doi.org/10.1017/s0424820100167652.

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Metal alloy microstructures are characteristic of the material’s mechanical and physical properties, including the key properties of strength and corrosion resistance. Microstructural evaluations typically use chemical etching to reveal the material’s structure. For corrosion-resistant alloys, chemical etching can be difficult due to the inherent chemical resistance of the material. This is especially true for active-passive alloys, where the etching reaction is highly dependent on the final polishing and even the time delay between polishing and etching.Chemical etching is further complicated for extremely fine microstructures and when two or more metals are joined in the sample. These factors are concerns for fine wires, such as those used in implantable medical devices. A common alloy for wires in many medical applications is a Co-Ni-Cr-Mo alloy, designated as MP35N. Wires with extremely small diameters are produced by severe drawing processes that result in very fine microstructures. The alloy is often used in composite wire products, such as an MP35N outer sheath containing a silver core.
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8

Takada, Yasuhiro, Mitsuru Shinozaki, Minoru Ota, Kai Egashira, Keishi Yamaguchi, and Yoshitaka Hattori. "Development of EDT Equipment Using Wire Tool Electrode." Advanced Materials Research 1136 (January 2016): 384–89. http://dx.doi.org/10.4028/www.scientific.net/amr.1136.384.

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Whirling electrical discharge texturing (WEDT) was developed to process microstructures on the inner surface of cylindrical parts made of high hardness materials. However, the minimum processable diameter of the cylindrical parts was φ 5 mm and the equipment could not feed the new tool electrodes. Therefore, the authors devised a novel method of WEDT using a straight wire tool electrode for a cylindrical surfaces with a small diameter. It was confirmed that microstructures could be created on the inner surface of a cylinder of φ 1.1 mm diameter, and that the texture-area ratio could be controlled by the workpiece feed speed. Moreover, new EDT equipment with a feeding system for a wire tool electrode and a bending system for the tip of a wire tool electrode was developed. As a result, the equipment that can process microstructures on the inner surface of a cylinder with a small diameter and feed a wire tool electrode during texturing was successfully developed.
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9

KHANNA, A., S. J. PLESSAS, P. BARRETT, and L. C. BAINBRIDGE. "The Thermal Effects of Kirschner Wire Fixation on Small Bones." Journal of Hand Surgery 24, no. 3 (June 1999): 355–57. http://dx.doi.org/10.1054/jhsb.1998.0055.

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The aim of this study was to assess bone heating caused by the passage of fine (<2 mm) K-wires of different types. Stainless steel K-wires of trocar and diamond point configurations (0.8–2.0 mm) were drilled into the metatarsal bones from a freshly amputated lower limb at a constant force. Temperature measurements were made by miniature thermocouples inserted into the bones, at 3 second intervals over a period of 3 minutes while each K-wire was drilled three times. The temperature reached varied with the tip configurations and the diameter of the K-wires. Regardless of point configuration, thinner wires generated more heat than thicker ones.
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10

Nam, Jung Min, Jae Hwa Lee, Yun Jung Lee, and Tae Hyun Nam. "Cooling and Heating Characteristics of Ti-Ni Based Shape Memory Alloy Wire Actuators." Solid State Phenomena 124-126 (June 2007): 1649–52. http://dx.doi.org/10.4028/www.scientific.net/ssp.124-126.1649.

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Ti-51Ni(at%) and Ti-40Ni-10Cu(at%) alloy wires with diameters of 0.3mm, 0.5mm and 0.7mm were prepared by drawing the alloy ingots fabricated by vacuum induction melting. Heating rates of the wires were investigated by measuring changes in temperatures of them while applying currents in the range of 1 A and 6 A to them and cooling rates were investigated by measuring changes in temperatures of them after cutting currents. Heating rate increased with increasing the amount of current, while cooling rate was kept constant. Both heating rate and cooling rate increased with decreasing diameter of wire. This suggested that high amount of current and small wire diameter were required for high heating and cooling rate. Comparing Ti-50Ni alloy wires with Ti-40Ni-10Cu alloy wires, heating rates of the latter was faster than that of the former, although cooling rates were almost same. This suggested that Ti-40Ni-10Cu alloy wires is better than Ti-50Ni alloy wires for the applications requiring high actuating rates.
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Дисертації з теми "Wire of small diameter"

1

Nabijou, Sharifeh. "Frictional behaviour and fatigue performance of wire ropes bent over small diameter sheaves." Thesis, Imperial College London, 1990. http://hdl.handle.net/10044/1/7453.

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2

Benini, Brian J. "Tension and Flex Fatigue Behavior of Small Diameter Wires for Biomedical Applications." Cleveland, Ohio : Case Western Reserve University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=case1269970809.

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Thesis (Master of Sciences)--Case Western Reserve University, 2010
Department of Materials Science and Engineering Title from PDF (viewed on 2010-05-25) Includes abstract Includes bibliographical references and appendices Available online via the OhioLINK ETD Center
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3

Луценко, Владислав Анатолійович, Владислав Анатольевич Луценко та Vladyslav A. Lutsenko. "Наукові основи вдосконалення термомеханічної обробки катанки для сталевого дроту малого діаметру". Thesis, Запорізький національний технічний університет, 2015. http://eir.zntu.edu.ua/handle/123456789/417.

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Луценко, В.А. Наукові основи вдосконаленнятермомеханічної обробки катанки для сталевого дроту малого діаметру [Текст]: дис. … докт. техн. наук: 05.16.01 : захищена ....: затверджена…. /Луценко Владислав Анатолійович. – Запоріжжя, 2015. – 353 с.
UK: Дисертаційна робота присвячена підвищенню в процесі ТМО пластичних властивостей сталевої катанки. Отримана сталева катанка має структуру: високовуглецева – дисперсний перліт із відсутністю замкнутої цементитної сітки, мінімальний зневуглецьований шар, який рівномірно розподілений по периметру; низьковуглецева – рівномірну структуру фериту з мінімальною кількістю перліту; легована – наявність бейніто-мартенситних ділянок до 10% в змішаній структурі. Результати використані на дротових станах ВАТ «БМЗ» та ПАТ «АрселорМіттал Кривий Ріг». Підвищення пластичності катанки забезпечило виготовлення сталевого дроту малого діаметру без проміжної термічної обробки, що дозволило знизити видатковий коефіцієнт металу в середньому на 10%. EN: The dissertation is devoted of increasing in thermo-mechanical processing the plastic properties of steel wire rod. The obtained steel wire rod has the structure: high carbon – the dispersion of perlite without closed cementite net, the minimum depth of equable decarburized layer; low carbon – uniform structure of ferrite with a minimum of perlite; alloy – the occurrence of bainite-martensite areas up to 10% in the mixed structure. The results were used on the rod mills OJSC “Byelorussian steel works” and РJSC “ArcelorMittalKryvyiRih“. The increasing of plasticity provided the production of steel wire of small diameter without intermediate heat treatment, thus reducing the expenditure coefficient of metal by 10% in average. RU: В диссертационной работе решена актуальная научно-техническая проблема – повышение после высокотемпературной прокатки пластических свойств металла путем развития научных основ о влиянии процессов ТМО на структурообразование и качественные характеристики стальной катанки. Установленные закономерности позволили совершенствовать технологию ТМО катанки и при экономии материальных ресурсов обеспечить производство стальной проволоки малого диаметра для металлокорда (в том числе сверхвысокопрочного), высокопрочной бортовой, канатной, легированной сварочной и низкоуглеродистой. Изучена кинетика превращения аустенита непрерывнолитой стали 90 при непрерывном охлаждении и в изотермических условиях. Установлено, что выделения цементита по границам зерен подавляются и полностью отсутствуют при скоростях более 10°С/с и при изотермическом распаде. Определено, что величина эффекта рекалесценции в стали 90 зависит от времени превращения. Установлено, что при ТМО снижение температуры после горячей деформации с 1050…1100°С до 900…950°С в результате принудительного охлаждения при повышении дробности деформации (на 20%) приводит к увеличению пластических свойств высокоуглеродистой стали. Полученная катанка для стальной проволоки, в отличие от традиционной, имеет повышенные пластические свойства. Основу структуры катанки составляет: высокоуглеродистой – сорбитообразный перлит (более 70%) с отсутствием избыточных структур (замкнутой цементитной сетки), минимальный обезуглероженный слой равномерно распределен по периметру; низкоуглеродистой – равномерная структура феррита с минимальным количеством пластинчатого перлита; легированной – наличие бейнито-мартенситных участков до 10% в смешанной структуре. Повышены требования к микроструктуре и свойствам высокоуглеродистой катанки и проволоки, которые отражены в изменении №11 к ЗТУ 840-03-2006 «Катанка стальная сорбитизированная для металлокорда, бортовой проволоки и проволоки для рукавов высокого давления» и ТУ У 276.3-23365425-638.2008 «Проволока стальная термически обработанная». Результаты использованы на ПАО «АрселорМиттал Кривой Рог» при разработке СТИ 228-112-2008 «Производство катанки из легированных сталей для сварочной проволоки ответственного назначения», изменения №3 к режимам охлаждения проката в потоке проволочного стана 150-1 СПЦ-1. Разработаны и внедрены на ОАО «БМЗ» режимы ТМО стальной катанки, в том числе для сверхвысокопрочной проволоки и металлокордапо ЗТУ 840-03-2006 (Изменения к ТК 840-П13-01-2002 и ТК 840-П3-01-2007 на режимы двухстадийного охлаждения катанки различного марочного сортамента в потоке стана 150). Повышение пластичности после высокотемпературной прокатки обеспечило изготовление стальной проволоки малого диаметра различного назначения без промежуточной термической обработки с сохранением требуемых конечных характеристик. Катанка, изготовленная по новому режиму ТМО, переработанная на проволоку малого диаметра, имеет лучшую технологичность в сравнении с базовой. Так, при производстве высокопрочногометаллокорда обрывность снизилась на 34%, а сверхвысокопрочного – на 23%. Освоение усовершенствованных режимов ТМО позволило снизить расходный коэффициент металла в среднем на 10%. Общий фактический экономический эффект от внедренных новых технологических решений составляет 31,7 миллиона гривен, доля автора – 4,44 миллиона гривен.
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4

Rouse, B. D. "Modelling of small diameter hydrocyclones." Thesis, University of Nottingham, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371290.

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5

Caswell, Robert J. "Viscosity effects in small diameter hydrocyclones." Thesis, University of Nottingham, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278416.

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6

Clayton, J. S. "Small diameter hydrocyclones in coal preparation." Thesis, University of Nottingham, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371274.

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7

Arief, Melissa Suen. "Human Tissue Engineered Small Diameter Blood Vessels." Yale University, 2010. http://ymtdl.med.yale.edu/theses/available/etd-03152010-144428/.

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The engineering of human vascular grafts is an intense area of study since there is crucial need for alternatives to native vein or artery for vascular surgery. This current study sought to prove that a tissue engineered blood vessel (TEBV) 1mm in diameter could be developed from human smooth muscle cells and that endothelial progenitor cells (EPCs) could be cultured and used to endothelialize these grafts. This project had four specific aims: the isolation and characterization of EPCs, the seeding of a novel scaffold with EPCs and exposure to physiologic shear stress in vitro, the development of TEBV from human smooth muscle cells that are strong enough to implant in vivo, and the in vivo implantation of TEBV into the rat aortic model with a comparison of EPC seeded TEBVs pretreated with shear stress and unseeded TEBVs. The results yielded isolation of four EPC lines and a flow system design capable of seeding EPCs onto a novel scaffold with preliminary studies indicating that it is capable of exposing the EPCs to physiologic shear stress, although further studies require more optimization. The development of mechanically strong TEBV was highly successful, yielding TEBVs comparable to native vessels in collagen density and burst pressure, but with much lower compliance. Current implantation studies indicated that unseeded TEBV grafts implanted into the rat aorta without anticoagulation is highly thrombogenic. However, anticoagulation using Plavix may be capable of maintaining graft patency. These TEBVs did not rupture or form aneurysm in vivo and the future completion of the in vivo studies are likely to demonstrate the high potential of these grafts.
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8

Derham, Chris. "Tissue engineering a small diameter vascular graft." Thesis, University of Leeds, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.535102.

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9

McLean, Michael B. "Dynamic performance of small diameter tunnel thrusters." Thesis, Monterey, California. Naval Postgraduate School, 1991. http://hdl.handle.net/10945/28132.

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10

Littlewood, Kim. "Movement of gross solids in small diameter sewers." Thesis, Imperial College London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391796.

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Книги з теми "Wire of small diameter"

1

Livingston, Jean. Small-diameter success stories II. Madison, WI: USDA Forest Service, Forest Products Laboratory, 2006.

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2

Carll, Charles. Ring flakes from small-diameter eastern hardwoods. [Madison, WI]: U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, 1989.

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Carll, Charles. Ring flakes from small-diameter eastern hardwoods. [Madison, WI]: U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, 1989.

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4

Howard, James O. Harvesting overstocked stands of small diameter trees. Portland, OR: Biomass and Energy Project, Pacific Northwest Forest and Range Experiment Station, 1987.

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5

Myers, Gary C. Small-diameter trees used for chemithermomechanical pulps. Madison, WI: U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, 2003.

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Myers, Gary C. Small-diameter trees used for chemithermomechanical pulps. Madison, WI: U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, 2003.

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Myers, Gary C. Small-diameter trees used for chemithermomechanical pulps. [Madison, WI]: United States Dept. of Agriculture, Forest Service, Forest Products Laboratory, 2003.

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8

Carll, Charles. Ring flakes from small-diameter eastern hardwoods. [Madison, WI]: U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, 1989.

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9

Carll, Charles. Ring flakes from small-diameter eastern hardwoods. [Madison, WI]: U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, 1989.

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Carll, Charles. Ring flakes from small-diameter eastern hardwoods. [Madison, WI]: U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, 1989.

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Частини книг з теми "Wire of small diameter"

1

Westfall, David E., and Glenn M. Boyce. "Small-Diameter Tunnels." In Tunnel Engineering Handbook, 311–19. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4613-0449-4_16.

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2

Bodlaender, Hans L., and Torben Hagerup. "Tree decompositions of small diameter." In Mathematical Foundations of Computer Science 1998, 702–12. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/bfb0055821.

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3

Sampels, Michael. "Large networks with small diameter." In Graph-Theoretic Concepts in Computer Science, 288–302. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/bfb0024505.

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4

Ishii, Yon. "HDC Process for Small Diameter Ingot." In Essential Readings in Light Metals, 598–604. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118647783.ch73.

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Ishii, Yoh. "HDC Process for Small Diameter Ingot." In Essential Readings in Light Metals, 598–604. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48228-6_73.

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Italiano, Giuseppe F., and Rajiv Ramaswami. "Maintaining spanning trees of small diameter." In Automata, Languages and Programming, 227–38. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/3-540-58201-0_71.

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Gondo, Shiori, Rena Tanemura, Ryuki Mitsui, Satoshi Kajino, Motoo Asakawa, Kosuke Takemoto, Kenichi Tashima, and Shinsuke Suzuki. "Dependence of Mesoscale Structure of Drawn High-Carbon Steel Wire on Wire Diameter." In Forming the Future, 1767–74. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-75381-8_148.

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Bots, J. G. F., L. Does, and A. Bantjes. "Small Diameter Blood Vessel Prostheses from Polyethers." In Polymers in Medicine II, 223–34. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4613-1809-5_18.

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9

Isenberg, Brett C., Chrysanthi Williams, Zeeshan H. Syedain, and Robert T. Tranquillo. "Small-Diameter Engineered Arteries: The Gel Approach." In Tissue-Engineered Vascular Grafts, 365–76. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-05336-9_23.

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Isenberg, Brett C., Chrysanthi Williams, Zeeshan H. Syedain, and Robert T. Tranquillo. "Small-Diameter Engineered Arteries: The Gel Approach." In Tissue-Engineered Vascular Grafts, 1–12. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-71530-8_23-1.

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Тези доповідей конференцій з теми "Wire of small diameter"

1

Wojcicki, Mark A., and Ryszard J. Pryputniewicz. "Laser microwelding of small diameter wire to a contact." In ICALEO® ‘96: Proceedings of the Laser Materials Processing Conference. Laser Institute of America, 1996. http://dx.doi.org/10.2351/1.5059066.

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2

Saiyed, S., S. A. Kudtarkar, R. Murcko, and K. Srihari. "Assessment of 20 Micrometer Diameter Wires for Wire Bond Interconnect Technology." In ASME 2007 InterPACK Conference collocated with the ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ipack2007-33691.

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In the domain of wire bonding technology, the size and pitch of bond pads and ball bonds are shrinking to accommodate the demand for higher I/Os and increased functionality per chip area. This trend serves as a catalyst for bonding wire manufacturers to continuously develop lower diameter bonding wires. One mil (25 μm) diameter bonding wire, used widely in this interconnection technique, is now being replaced by 0.8 mil (20 μm) diameter bonding wire. In keeping with the need for higher operating speeds and higher temperatures for today’s ICs, the reliability of ball bonds formed by small diameter wires is of concern and requires investigation. This study explores the effects of 0.8 mil (20 μm) diameter bonding wire on the wire bond ball joint reliability and compares these effects with 1.0 mil (25 μm) diameter bonding wire. The reliability of the ball bonds was assessed using mechanical tests (wire pull and ball shear) for units subjected to stress tests such as the unbiased highly accelerated stress test and high temperature storage tests. The results of this investigation reveal that both the wire diameters are able to sustain their integrity after moisture testing. But, the bond strength degrades after high temperature tests due to the Kirkendall voiding mechanism occurring between gold wire and the aluminum bond pad.
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Kendall, Gail E., Peter Griffith, Arthur E. Bergles, and John H. Lienhard. "Small Diameter Effects on Internal Flow Boiling." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/htd-24211.

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Abstract Since the 1950’s, the research and industrial communities have developed a body of experimental data and set of analytical tools and correlations for two-phase flow and heat transfer in passages having hydraulic diameter greater than 6 mm or so. These tools include flow regime maps, pressure drop and heat transfer correlations, and critical heat flux limits, as well as strategies for robust thermal management of HVAC systems, electronics, and nuclear power plants. Designers of small systems with thermal management by phase change will need analogous tools to predict and optimize thermal behavior in the mesoscale and smaller sizes. Such systems include a wide range of devices for computation, measurement, and actuation in environments that range from office space to outer space and living systems. This paper examines important proceses that must be considered when channel diameters decrease, including flow distribution issues in single, parallel, and split flows; flow instability in parallel passages; manufacturing tolerances effects; nucleation processes; and wall conductance effects. The discussion focuses on engineering issues for the design of practical systems.
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4

Anderson, Chris S., O¨zden F. Turan, and S. Eren Semercigil. "Pitfalls of Hot-Wire Measurements Due to Transverse Wire Vibration." In ASME 2002 Joint U.S.-European Fluids Engineering Division Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/fedsm2002-31066.

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Following from numerical predictions and large scale experimental verification, flow measurements are presented to show the effect of transverse wire vibrations on spectral measurements. It has been shown previously that if the first and second natural frequencies of a probe wire are close, it is expected to have favorable dynamic characteristics in turbulent flow. This expectation is confirmed with flow measurements. Further, the traditional sensing length to diameter ratio is reexamined for small scale measurements.
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Lanzetta, François, Eric Gavignet, Sofiane Amrane, and Philippe Baucour. "Microthermocouples Sensors for Velocity and Temperature Measurements in Gas Flow." In ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/esda2012-82817.

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This paper presents the development of two classes of sensors based on microthermocouples with different wire diameters (from 7.6 μm to 25.4 μm). The first one uses the pulsed-wire technique for the couple velocity/temperature measurement. These sensors are used with three different techniques we developed in our laboratory: the time of flight method, the oscillation frequency method and the phase method. Because the purpose of this kind of sensor is to be introduced in different microdevices, it is realized with two thermocouple wires and does not use the micromachining technologies. Its working principle is close to that of the hot wire anemometer and it presents the same advantages such as very small dimensions and weak response time. The sensor is developed in order to measure flows and temperatures in microsystems like small channels (width < 500 μm), microtubes (diameter < 53 μm) and small structures (volume < 100 μm3). The second class of sensors are based on the multi-wire thermocouple technique. In this paper we present a probe using two wires of same nature but different in diameter located close together at the measurement point. This probe is used to measure simultaneously the temperature and the velocity of flowing gas. Results will focus on oscillating flows of gas.
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Ivanov, V. V., V. I. Sotnikov, J. M. Kindel, A. P. Shevelko, P. Hakel, R. C. Mancini, A. L. Astanovitskiy, et al. "Experimental study of star-like and small-diameter wire-array z-pinches on the 1-MA Zebra generator." In DENSE Z-PINCHES: Proceedings of the 7th International Conference on Dense Z-Pinches. AIP, 2009. http://dx.doi.org/10.1063/1.3079762.

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Shin, Moochul, and Hailing Yu. "Numerical Evaluation of Splitting Performance of Prestressed Concrete Prisms With Larger Diameter Prestressing Wires." In 2019 Joint Rail Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/jrc2019-1315.

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This numerical study focuses on evaluating the structural performance of prestressed concrete prisms with larger diameter (0.315 in) prestressing wires. More commonly used prestressing wires are the 0.209 in (5.32 mm) diameter wires for prestressed concrete crossties. However, there has been an interest to adopt larger diameter prestressing wires in order to provide higher prestress forces with the aim of mitigating the structural damage of prestressed concrete crossties. Previous experimental studies demonstrated that small-scale pretensioned concrete prisms had excellent correlation in bonding performance of concrete ties pretensioned with 0.209 in (5.32 mm) wires or three- or seven-wire strands. Using a finite element (FE) modeling approach, this study investigates the effects of 8 mm diameter prestressing wires on the splitting/bursting performance of prisms at the onset of de-tensioning of the wires. The studied parameters include geometrical/mechanical parameters such as thickness of the concrete cover, spacing between the wires, level of prestress forces, and concrete release strength in compression. Cohesive elements with a newly developed nonlinear bond-slip model are assigned to the interface between the prestressing wires and the surrounding concrete. The parameters for the bond-slip model are calibrated based on a simple pull-out test on concrete cylinders with the 0.315 in (8 mm) diameter wires. The simulation results are compared with the predicted splitting performance of prisms pretensioned with 0.209 in (5.32 mm) wires or seven-wire strands. Based on the FE analysis results, recommendations are made on the minimum concrete cover thickness and wire spacing required to achieve acceptable splitting/bursting performance in prestressed concrete prisms.
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Pecush, Adam, Mark McTavish, and Brian Ellestad. "Inspection and Prioritization Methods for Small Diameter Auxiliary Piping." In 2014 10th International Pipeline Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/ipc2014-33593.

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To serve the pumping and storage needs of its customers; Enbridge operates more than 25 terminals and 150 pump stations across North America. In each of these facilities, small diameter (NPS 6 and smaller) piping is used in auxiliary systems including instrumentation, measurement, and product re-injection. Traditionally, in the design of facilities, this small piping has received less attention than large diameter process lines and, during construction, has typically been field run based on standard installation details. This, in conjunction with 65 years of changing design and construction philosophies, as well as asset acquisitions, has resulted in a wide variety of installation configurations across the Enbridge liquids system. The Small Diameter Piping Program in the Facilities Integrity group centrally manages the integrity of all small diameter auxiliary piping across the Enbridge liquids system. Historically, the management and remediation of small diameter systems has been based on addressing specific installation types identified through incident investigations. While generally effective at minimizing re-occurrence, this approach has been limited in its ability to proactively identify installations that should be addressed. In support of our goal of zero incidents, Enbridge has developed a proactive methodology for the inspection and prioritization of small diameter auxiliary piping. Installation types are evaluated on their susceptibility to specific damage mechanisms. An inspection and prioritization model was developed through the combination of internal lessons learned and prioritization methodologies outlined in industry publications, specifically those from the overseas oil and gas industry. This model, sets a standardized process to assign a likelihood of failure (LOF) score to individual small diameter installations of specific types and/or functions. Presently, likelihood of failure scores are used to identify installations requiring remediation, and to most effectively prioritize system-wide remediation activities. Over time, these scores will also be used to demonstrate an overall reduction in the likelihood of failure for small diameter piping in the Enbridge liquids pipeline system.
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Watanabe, Hiroyasu, Kazuo Yamamoto, Issei Nomura, Shinichi Sumi, and Takanori Wada. "Small-Diameter Rogowski Coil and Integrator for Wide-Band Current Sensor." In 2019 11th Asia-Pacific International Conference on Lightning (APL). IEEE, 2019. http://dx.doi.org/10.1109/apl.2019.8816010.

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Shi, Jun, Jing Rao, Jianfeng Shi, Ping Xu, Taiqing Shao, Hanzeng Shao, Defu Chen, Guangzhong Li, and Xiaolian He. "Design of a Large Diameter Steel Reinforced Plastic Pipe." In ASME 2011 Pressure Vessels and Piping Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/pvp2011-57297.

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A steel reinforced plastic pipe (PSP), which is composed of two layers of high density polyethylene (HDPE) matrix and a high strength steel wire mesh skeleton, has wide applications in many industrial areas, such as gas and petroleum transportation, etc. In order to achieve higher efficency and lower costs, a large diameter PSP has been developed. However, requirements of the large diameter PSP in safety and economy are much higher, compared with those small diameter PSPs, and some potential problems should be taken into account. In this paper, relevant structural parameters of the large diameter PSP are determined, based on a previously proposed model, and a short-term burst test is carried out. The experiment results agree with the theoretical results quite well. Subsequently, the resistance of vertical pressure and uniform external pressure are evaluated by using experiment investigation and finite element method, respectively. And corresponding results indicate the large diameter PSP with determined structural parameters is qualified to use.
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Звіти організацій з теми "Wire of small diameter"

1

Mizik, P. Small-diameter wire tensile testing: Topical report. Office of Scientific and Technical Information (OSTI), September 1987. http://dx.doi.org/10.2172/5987268.

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Weiss, Charles, William McGinley, Bradford Songer, Madeline Kuchinski, and Frank Kuchinski. Performance of active porcelain enamel coated fibers for fiber-reinforced concrete : the performance of active porcelain enamel coatings for fiber-reinforced concrete and fiber tests at the University of Louisville. Engineer Research and Development Center (U.S.), May 2021. http://dx.doi.org/10.21079/11681/40683.

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A patented active porcelain enamel coating improves both the bond between the concrete and steel reinforcement as well as its corrosion resistance. A Small Business Innovation Research (SBIR) program to develop a commercial method for production of porcelain-coated fibers was developed in 2015. Market potential of this technology with its steel/concrete bond improvements and corrosion protection suggests that it can compete with other fiber reinforcing systems, with improvements in performance, durability, and cost, especially as compared to smooth fibers incorporated into concrete slabs and beams. Preliminary testing in a Phase 1 SBIR investigation indicated that active ceramic coatings on small diameter wire significantly improved the bond between the wires and the concrete to the point that the wires achieved yield before pullout without affecting the strength of the wire. As part of an SBIR Phase 2 effort, the University of Louisville under contract for Ceramics, Composites and Coatings Inc., proposed an investigation to evaluate active enamel-coated steel fibers in typical concrete applications and in masonry grouts in both tension and compression. Evaluation of the effect of the incorporation of coated fibers into Ultra-High Performance Concrete (UHPC) was examined using flexural and compressive strength testing as well as through nanoindentation.
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Livingston, Jean. Small-diameter success stories II. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 2006. http://dx.doi.org/10.2737/fpl-gtr-168.

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Livingston, Jean. Small-diameter success stories III. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 2008. http://dx.doi.org/10.2737/fpl-gtr-175.

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Myers, Gary C., R. James Barbour, and Said M. AbuBakr. Small-diameter trees used for chemithermomechanical pulps. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 2003. http://dx.doi.org/10.2737/fpl-gtr-141.

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Hickman, Kevin. Small Diameter Bomb Increment II (SDB II). Fort Belvoir, VA: Defense Technical Information Center, December 2015. http://dx.doi.org/10.21236/ad1019544.

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AIR FORCE LIFE CYCLE MGMT CENTER ARMAMENT DIR. Small Diameter Bomb Increment II (SDB II). Fort Belvoir, VA: Defense Technical Information Center, December 2013. http://dx.doi.org/10.21236/ada614935.

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Skinner, Jack L., Alfredo Martin Morales, J. Brian Grant, Henry James Korellis, Marianne Elizabeth LaFord, Benjamin Van Blarigan, and Lisa E. Andersen. Eddy sensors for small diameter stainless steel tubes. Office of Scientific and Technical Information (OSTI), August 2011. http://dx.doi.org/10.2172/1030394.

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LeTellier, M. S., D. J. Smallwood, and J. A. Henkel. Nuclear criticality safety calculational analysis for small-diameter containers. Office of Scientific and Technical Information (OSTI), November 1995. http://dx.doi.org/10.2172/146774.

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Hone, M. J. Additional nuclear criticality safety calculations for small-diameter containers. Office of Scientific and Technical Information (OSTI), January 1996. http://dx.doi.org/10.2172/211600.

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