Relevant bibliographies by topics / Hole shrinkage

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Hole shrinkage'

Author: Grafiati
Published: 4 June 2021
Last updated: 26 July 2025

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Journal articles on the topic "Hole shrinkage"

1

Duan, Zhi Dong, Ya Ping Duan, and Pei Wu Yan. "Influencing Factors Analysis of Stability of Hole Wall of Bored Pile in Seasonal Frozen Ground in the West of China." Applied Mechanics and Materials 256-259 (December 2012): 441–44. http://dx.doi.org/10.4028/www.scientific.net/amm.256-259.441.

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Collapsing and shrinkage of hole wall are two troubles to drilling of bored pile. In order to avoid such troubles, ultimate hole depth of bored pile was deduced with dry excavation technology. To hydraulic excavation technology, by the method of finite element numerical simulation and finite element strength reduction, excavation process of hole of bored pile are simulated in ADINA and ANSYS software, The influences of hole radius, hole depth, power of rotary drilling rig and pressure of auger boring tool on stability of hole wall are analyzed. The analysis indicate that the major problem of s
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Li, Jian Zhong, Tao Wu, and Long Zhang. "A Method of Machining Micro Hole and Micro Cavity in Ceramics." Applied Mechanics and Materials 130-134 (October 2011): 923–26. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.923.

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For machining micro hole and micro cavity in ceramics, a manufacturing methods based on green machining have been systematically researched. The micro tool was prepared on-machine by micro electrical discharge machining (EDM). The tool size for micro hole drilling was determined based on extensive experimental results of the sintering shrinkage ratio and the gap caused by the removed ceramics particles between the tool and the workpiece to achieve the desired hole diameter. The tool path design was based on the tool size, the shrinkage ratio and the gap which is different from that in micro ho
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Zhu, Lei, Tongxing Zuo, Chong Wang, Qianglong Wang, Zhengdong Yu, and Zhenyu Liu. "Hole Appearance Constraint Method in 2D Structural Topology Optimization." Mathematics 12, no. 17 (2024): 2645. http://dx.doi.org/10.3390/math12172645.

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A 2D topology optimization algorithm is proposed, which integrates the control of hole shape, hole number, and the minimum scale between holes through the utilization of an appearance target image. The distance between the structure and the appearance target image is defined as the hole appearance constraint. The appearance constraint is organized as inequality constraints to control the performance of the structure in an iterative optimization. Specifically, hole shapes are controlled by matching adaptable equivalent shape templates, the minimum scales between holes are controlled by a hole s
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Xu, Zhen Ying, Yun Wang, Pei Long Dong, and Kai Xiao. "Shrinkage Optimization of Flat Receptacle Using the Finite Element Method." Materials Science Forum 575-578 (April 2008): 478–82. http://dx.doi.org/10.4028/www.scientific.net/msf.575-578.478.

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Flat receptacle, which is used in extruding the large aluminum profiles, is in harsh work conditions. Due to the irregularity of inner hole of flat receptacle, inconsistent resistance of shrinking fitting affects the inner hole within which nonuniform deformation occurs. If the nonuniformity exceeds the specified dimension accuracy, tiresome work including mould repairing and structure optimization has to be done. ANSYS is used to simulate the flat receptacle. It is shown that the maximum stress appears in the arc area of inner hole. Therefore, we present one new method using the preloaded lay
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Peng, Xianwei, Dongmei Ji, and Yuxin Zhang. "Analysis of cooling characteristics of the fan-shaped hole in a flame tube of gas turbine." Journal of Physics: Conference Series 3021, no. 1 (2025): 012050. https://doi.org/10.1088/1742-6596/3021/1/012050.

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Abstract In order to further improve the cooling performance of the combustion chamber flame tube, a fan-shaped hole film cooling structure with higher cooling performance is proposed. The numerical simulation method is used to compare and analyze the flow heat transfer and cooling characteristics of traditional cylindrical holes, shrinkage holes, crescent holes, and fan-shaped holes when the blowing ratio is 0.5-2.5. The calculation results show that: The comprehensive cooling efficiency of the four types of holes has the same trend along the mainstream flow direction and increases with the i
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Wei, Zhong Liang, and Lin Ge. "The Research and Application of Drilling Fluids Technology in Zhoushen Well X1." Advanced Materials Research 201-203 (February 2011): 1558–61. http://dx.doi.org/10.4028/www.scientific.net/amr.201-203.1558.

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Zhoushen Well X1 is a deep and exploration well, there are some difficulties in drilling fluids treating: The borehole is large, the open hole is long and the rock density proportion is high in the overlying strata. So the drilling fluids must have good suspended and sand carrying; there are brown mudstone, gypsum mudstone and light gray fine sandstone in the lower strata, swelling and hole shrinkage always happen. So the key point is ensuring well wall stability and preventing swelling and hole shrinkage. The drilling fluids must have strong Calcium-tolerance and good compatibility with forma
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Shyrin, Leonid, Yevhenii Koroviaka, Valerii Rastsvietaiev, and Oleksandr Denyshchenko. "Substantiating rational parameters of a method for shrinkage ore stoping while developing thin-vein steeply inclined deposits." E3S Web of Conferences 60 (2018): 00022. http://dx.doi.org/10.1051/e3sconf/20186000022.

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Objective of the paper is to substantiate rational ore-stoping technique while using small wells in the context of thin-vein steeply inclined deposit mining. The technique is based upon the repeated field studies and simulation of ore drawing processes for shrinkage ore stoping in terms of the oriented drilling of periphery holes. A design of a blast-hole charge with low-density porous intermediate layer has been proposed as a result as well as a mechanism of shock-wave propagation within rock mass in the process of thin steeply inclined vein stoping. Scientific novelty is represented by means
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Jiang, Yin Fang, Yi He, Yu Zhong He, Xiao Ming Qian, and Yu Huang. "Analysis and Optimization on the Gating System of Aluminum Alloy Piston in Casting." Applied Mechanics and Materials 80-81 (July 2011): 32–35. http://dx.doi.org/10.4028/www.scientific.net/amm.80-81.32.

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Shrinkage porosity defects occurring in ring groove underside the pin hole of aluminum piston are strongly influenced by the time-varying temperature profiles inside the solidifying casting. By adopting the finite element analysis software PROCAST and combining with production practice, the gating system which has open-cycle ring feeding channel in the bottom of the piston was compared with conventional techniques; the influence of opening angle of ring feeding channel and different process parameters on shrinkage distribution was researched. The results show the gating system with open-cycle
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Son, Keunbada, and Kyu-Bok Lee. "A Novel Method for Precise Guided Hole Fabrication of Dental Implant Surgical Guide Fabricated with 3D Printing Technology." Applied Sciences 11, no. 1 (2020): 49. http://dx.doi.org/10.3390/app11010049.

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A dental implant surgical guide fabricated by 3-dimensional (3D) printing technology is widely used in clinical practice due to its convenience and fast fabrication. However, the 3D printing technology produces an incorrect guide hole due to the shrinkage of the resin materials, and in order to solve this, the guide hole is adjusted using a trimmer or a metal sleeve is attached to the guide hole. These methods can lead to another inaccuracy. The present method reports a technique to compensate for a decreased guide hole caused by shrinkage that can occur when a computer-guided implant surgical
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Duan, Zhi Dong, Ya Ping Wu, and Pei Wu Yan. "Numerical Analysis of Drilling Process of Bored Pile in Seasonal Frozen Ground in the West of China." Applied Mechanics and Materials 256-259 (December 2012): 503–6. http://dx.doi.org/10.4028/www.scientific.net/amm.256-259.503.

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In order to research shrinkage of hole-wall and plastic region around hole-wall of bored pile in drilling process, a porous analysis model was built, and drilling process of bored pile, under dry excavation technology and hydraulic excavation technology, were simulated by element birth and death feature in ADINA software. Numerical analysis results show that to seasonal frozen ground in the west of China, dry excavation technology is not appropriate, consolidation settlement caused by drilling is small and can be taken into no consideration in design, major problem in hydraulic excavation tech
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Dissertations / Theses on the topic "Hole shrinkage"

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Nilsson, Jonathan. "There's a Hole in My Sock : Shrink the Economy Now!" Thesis, Linnéuniversitetet, Institutionen för design (DE), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-96562.

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This project is a book which facilitates thinking about the ongoing climate crisis from a Degrowth perspective. Methods are to the greater part reading literature, watching interviews and also to a lesser extent conducting a survey, contacting a researcher and holding a workshop. The key visual tools that are used in this book are typography, infographics, illustration, layout and bookbinding. Firstly, the connection between personal experience and global warming is illustrated. Secondly, based on the severity and scope of the crisis, it is argued that radical societal change is required. Thir
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Merzouki, Johan. "étude des chargements thermomécaniques induits par le resserrement du trou en perçage du Ti6Al4V sous assistance cryogénique." Thesis, Paris, ENSAM, 2018. http://www.theses.fr/2018ENAM0025/document.

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En raison des enjeux économiques et écologiques majeurs auxquels doivent faire face les acteurs de l’industrie aéronautique depuis plusieurs décennies, la part massique de composite dans la composition des avions n’a cessé d’augmenter : elle était d’environ 5% en 1972 pour l’Airbus A300 pour arriver à plus de 50% en 2013 pour l’Airbus A350. En effet, l’objectif étant de réduire toujours plus la masse des avions, les alliages d’aluminium qui les composaient en grande majorité (75% de la masse dans les années 70) ont été progressivement remplacés par d’autres matériaux aux caractéristiques mécan
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Абдулкеримов, Илимдар Диляверович. "Технологическое обеспечение качества резьбовых соединений в глухих отверстиях деталей из алюминиевых сплавов деформирующим инструментом". Thesis, НТУ "ХПІ", 2015. http://repository.kpi.kharkov.ua/handle/KhPI-Press/20297.

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Диссертация на соискание учёной степени кандидата технических наук по специальности 05.02.08 – технология машиностроения. Национальный технический университет "Харьковский политехнический институт", Харьков, 2016. Диссертация посвящена решению научно-технической задачи технологического обеспечения герметичности резьбовых соединений деталей из алюминиевых сплавов с газо-усадочной пористостью деформирующим инструментом. В работе проведен анализ существующих систем обработки глухих отверстий в алюминиевых сплавах из газо-усадочных материалов, выявлены основные факторы, определяющие качество и пр
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Абдулкерімов, Ілімдар Діляверович. "Технологічне забезпечення якості різьбових з'єднань у глухих отворах деталей з алюмінієвих сплавів деформуючим інструментом". Thesis, НТУ "ХПІ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/20295.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.02.08 – технологія машинобудування. Національний технічний університет "Харківський політехнічний інститут", Харків, 2016. Дисертація присвячена вирішенню проблеми технологічного забезпечення герметичності різьбових з'єднань деталей з алюмінієвих сплавів з газо-усадковою пористістю деформуючим інструментом. У роботі проведено аналіз існуючих систем обробки глухих отворів у деталях з газо-усадкових матеріалів. Проведено аналітичне та експериментальне дослідження методу механічної обробки різьбових отворів при
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Chen, Cong-Lian, and 陳聰連. "The Study of Shrinkage Characteristics of Ceramic Injection Molded Flat Specimens with a pin hole." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/09663663413356262192.

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碩士<br>國立交通大學<br>機械工程系所<br>97<br>Geometric precision and strength are two primary requirements for ceramic injection molded components. In the process of geometrically complex ceramic injection molding, shrinkage is one of the most important factors which affects dimensional precision and loss of shape. Non-uniform shrinkage will lead to defects such as fracture. In addition, shrinkage also has a closely relationship with mechanical strength of ceramics after debinding and sintering processes. The variation of shrinkage was related to the character of ceramic powder and the rheological properti
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Hsieh, I.-Chih, and 謝一志. "Visualization of In-Mold Constraint to Affect Shrinkage of Micro Holes during Injection Molding." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/48585356791596364809.

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碩士<br>國立雲林科技大學<br>機械工程系碩士班<br>94<br>The objective of this study is to use a real time visualization technique to observe the effects of in-mold constraint on the shrinkage of a through hole array. Such a hole array can used in optical communication or optoelectronics applications. Precision control of roundness and position accuracy of the hole arrays are extremely important and directly related to diameter and pitch shrinkage of the hole arrays. In order to have through holes, pins are assembled within the cavity and result in anisotropic shrinkage of the through holes, or so called in-mold c
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Book chapters on the topic "Hole shrinkage"

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Yang, Qilin, Qianqian Shang, Hui Xu, and Min Xu. "Impact of Three Gorges Project (TGP) on Riverbed Revolution and Navigation Conditions in the Taipingkou Waterway." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-6138-0_133.

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AbstractTaipingkou channel is the first sandy shoal channel in the lower reaches of the Three Gorges Project (TGP). The change of river boundary is basically stable under human control, but the change of beach trough in the channel is complex, which has adverse effects on navigation. In particular, the shrinkage of Sanbatan is harmful to the design of navigation bridge hole of Jingzhou Yangtze River Bridge in dry season. By analyzing the hydrological and sediment characteristics of Taipingkou waterway before and after the impoundment of the Three Gorges Project, and studying the changes of riv
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Melnikov, Sergiy, Igor Taranenko, Tetyana Nabokina, and Andrii Kondratiev. "Process-Induced Stresses and Deformations of Hobe Block During Shrinkage and Cooling." In Integrated Computer Technologies in Mechanical Engineering - 2023. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-61415-6_8.

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Lupkin, Borys, Kateryna Maiorova, Iurii Vorobiov, Viacheslav Nikichanov, and Valeriy Sikulskyi. "Study of Drilling Cutting Modes Impact on Shrinkage and Surface Roughness of Holes in Composite Materials." In Integrated Computer Technologies in Mechanical Engineering - 2022. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-36201-9_8.

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Mock, Douglas W., and Geoffrey A. Parker. "Sibling rivalry in ectothermic vertebrates." In The Evolution of Sibling Rivalry. Oxford University PressOxford, 1997. http://dx.doi.org/10.1093/oso/9780198577430.003.0014.

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Abstract In most fishes, reptiles and amphibians, offspring receive no post-zygotic parental investment, shareable or otherwise, and have little to contest with siblings they seldom if ever contact. Because most species are oviparous (hatching from eggs outside the mother’ s body), sibling embryos arc physically separated by shell membranes and thus remain isolated from one another until hatching, after which they are on their own (Shine 1988, Clutton-Brock 1991). Additionally, in contrast to birds and mammals, parental feeding of offspring is extremely rare. In some anurans, however, parents
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Hu, Yong, Xiangzhou Zhang, Bin Feng, Kang Xie, and Mei Liu. "iTrade." In Intelligent Systems. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-5643-5.ch041.

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Among all investors in the Chinese stock market, more than 95% are non-professional individual investors. These individual investors are in great need of mobile apps that can provide professional and handy trading analysis and decision support everywhere. However, financial data is challenging to analyze because of its large-scale, non-linear and noisy characteristics in a varying stock environment. This paper develops a Mobile Data-Driven Stock Trading System (iTrade), which is a mobile app system based on Client-Server architecture and various data mining techniques. The iTrade is characteri
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Conference papers on the topic "Hole shrinkage"

1

Lee, Geunsu, Jungwoo Park, Wonwook Lee, Cheolkyu Bok, Changmoon Lim, and Sungchan Moon. "New shrinkage technology for nano-contact hole formation." In Microlithography 2005, edited by John L. Sturtevant. SPIE, 2005. http://dx.doi.org/10.1117/12.598592.

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Tsusaka, Kimikazu, Tatsuya Fuji, Motohiro Toma, et al. "Hard Backreaming Due to Hole Shrinkage Through Carbonate Reservoir in Offshore Abu Dhabi." In Abu Dhabi International Petroleum Exhibition & Conference. SPE, 2021. http://dx.doi.org/10.2118/207252-ms.

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Abstract The 3,000 ft long lateral holes drilled through water-injected area in the carbonate reservoir in the offshore Abu Dhabi have been forced to implement hard backreaming. The abnormal extra operational time has been taken due to poor performance in the operation to pull out a bottomhole assembly after drilling to the total depth. The study aims to analyze root-causes of the hard backreaming through the carbonate reservoir in the studied field. The speed of tripping-out was analyzed every stand of drill pipe by using time domain data of movement of traveling block. The correlations betwe
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Hata, Mitsuhiro, Jung-Hwan Hah, Hyun-Woo Kim, Man-Hyoung Ryoo, Sang-Gyun Woo, and Han-Ku Cho. "Novel chemical shrinkage material for small contact hole and small space patterning." In Microlithography 2005, edited by John L. Sturtevant. SPIE, 2005. http://dx.doi.org/10.1117/12.599468.

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Vandenberg, Theodore W., Christopher R. Nehme, and Thomas P. James. "Application of Microforming to Create Chondrocyte Home Sites in a Natural Cartilage Matrix." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-36953.

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Articular cartilage degeneration is a central pathological feature of osteoarthritis. Cartilage in the adult does not regenerate in vivo and, as a result, cartilage damage in osteoarthritis is irreversible. With our ever-aging population, osteoarthritis has become a leading cause of disability and unfortunately, no optimal treatments for osteoarthritis are currently available. To address this problem, a research community is focused on the development of both natural and synthetic biodegradable tissue scaffolds. The scaffolds must contain depressions or holes for the purpose of chondrocyte see
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Romashevskiy, S. A., S. I. Ashitkov, and S. A. Evlashin. "Brillouin Light Scattering in Highly Excited Silicon." In Frontiers in Optics. Optica Publishing Group, 2023. http://dx.doi.org/10.1364/fio.2023.jm7a.50.

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The features of detection of propagating in silicon coherent acoustic phonons generated upon strong laser excitation of the top metal nanofilm via time-domain Brillouin scattering are investigated. The generation of electron-hole plasma in silicon along with Beer–Lambert law result in a shrinkage of the silicon layer thickness to be studied.
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Zhu, Quan, Yushan Liu, Yujun Cai, and Meng Wu. "Research on the Shrinkage of Model with Hole in PLA Material Based on the FDM 3D Printing." In 2017 6th International Conference on Measurement, Instrumentation and Automation (ICMIA 2017). Atlantis Press, 2017. http://dx.doi.org/10.2991/icmia-17.2017.95.

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Olbright, G. R., W. S. Fu, J. F. Klem, T. E. Zipperian, S. W. Koch, and R. Binder. "Femtosecond Spectroscopy of GaAs/AlAs Type-II Superlattices in an Axial Electric Field." In International Conference on Ultrafast Phenomena. Optica Publishing Group, 1990. http://dx.doi.org/10.1364/up.1990.pdp26.

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Recently we reported a blue shift of the heavy-hole (HH) exciton in type-II superlattices in the quasi-steady-state. We explained the shift in terms of noncompensation of counteracting many-body effects in an electron-hole plasma which consisted of an electron plasma in the X-valley of the AlAs layers and a hole plasma in the Γ-valley of the GaAs layers.1 This blue shift indicates that there is reduced compensation between bandgap shrinkage and reduction of the binding energy at high carrier densities. Here we report the first study of femtosecond optical nonlinearities of GaAs/AlAs type-II su
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Kogo, Bridget, Bin Wang, and Mahmoud Chizari. "Clamping Effect on the Welding Deformations in Dissimilar Welded Pipes (Joints) With Varied Thicknesses: Axial and Radial Shrinkage." In ASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/omae2020-18897.

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Abstract This study investigates and evaluates the welding residual stresses and deformations in the dissimilar material MSSS metals in order to verify the clamping effect on the residual stresses and deformations and entails comparison with the finite element simulation, the critically reflected longitudinal ultrasonic stress measurement and the hole-drilling residual stresses in a Butt-welded plate courtesy of Javadi et al [1]. The angular shrinkage measurement and vertical displacement were used to achieve this objective. The outcome of the study proved that the measurement of residual stre
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GORINOV, S. A., and I. YU MASLOV. "DETONATION OF A LOW-DENSITY EMULSION EXPLOSIVE." In 12TH INTERNATIONAL COLLOQUIUM ON PULSED AND CONTINUOUS DETONATIONS. TORUS PRESS, 2020. http://dx.doi.org/10.30826/icpcd12a30.

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One of promising directions in conducting sparing highly mechanized blasting operations in open-pit mining may be the use of low-density emulsion explosives sensitized with light porous granules made of low-strength material (for example, granules of polystyrene foam). Experimentally, it was possible to show that such explosives allow mechanized charging into downward hole wells and allow forming a borehole charge that is virtually not subject to shrinkage at a height of up to 40 m. Low explosive densities make it possible to effectively use solid column charges for gentle blasting which, in t
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Lu, X. Z., R. Rao, A. Doukas, B. Willman, S. Lee, and R. R. Alfano. "Photoluminescence dynamics of the layered GaSe semiconductor under Intense picosecond laser-induced shock waves." In OSA Annual Meeting. Optica Publishing Group, 1986. http://dx.doi.org/10.1364/oam.1986.thf4.

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The generation of intense picosecond laser- driven shock waves in the layered GaSe semiconductor and simultaneous probing of the sample using another picosecond laser to study the shock- induced phenomena are discussed. In unshock condition, at low probe intensity, spontaneous emission is observed while at high probe intensity stimulated emission is observed. Under laser- induced shock pressure, 20-nm spectral shift of spontaneous emission and sixfold decrease in the intensity of stimulated emission have been detected. By careful band-shape analysis, both spontaneous and stimulated emission is
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