Academic literature on the topic 'Micro-contraction'

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Journal articles on the topic "Micro-contraction"

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Koenders, E. A. B., and M. R. de Rooij. "Moisture flow by micro structural contraction." Materials and Structures 39, no. 9 (2006): 869–76. http://dx.doi.org/10.1617/s11527-006-9088-x.

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Marcucci, Lorenzo, Tetsuya Shimokawa, Mitsuhiro Iwaki, and Toshio Yanagida. "Micro-Mechanical Model of Muscle Contraction." Biophysical Journal 98, no. 3 (2010): 147a. http://dx.doi.org/10.1016/j.bpj.2009.12.793.

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Shimizu, J., N. Yagi, S. Mohri, et al. "Transmurally Harmonized Cardiac Crossbridge Formation during Contraction.(Micro- and Nano-biomechanics)." Proceedings of the Asian Pacific Conference on Biomechanics : emerging science and technology in biomechanics 2004.1 (2004): 231. http://dx.doi.org/10.1299/jsmeapbio.2004.1.231.

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Ramírez, Jorge, and Manuel Laso. "Micro–macro simulations of three-dimensional plane contraction flow." Modelling and Simulation in Materials Science and Engineering 12, no. 6 (2004): 1293–306. http://dx.doi.org/10.1088/0965-0393/12/6/020.

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YOSHIOKA, Shota, and Kazuo MATSUUCHI. "1116 Contraction and Dissolution Processes of Micro-bubble(2)." Proceedings of the Fluids engineering conference 2007 (2007): _1116–1_—_1116–4_. http://dx.doi.org/10.1299/jsmefed.2007._1116-1_.

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Yoshioka, Shota, and Kazuo Matsuuchi. "1116 Contraction and Dissolution Processes of Micro-bubble(1)." Proceedings of the Fluids engineering conference 2007 (2007): _1116—a_. http://dx.doi.org/10.1299/jsmefed.2007._1116-a_.

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Ishikawa, Masaaki, Kunio Irabu, Isao Teruya, and Munehiro Nitta. "PIV measurement of a contraction flow using micro-bubble tracer." Journal of Physics: Conference Series 147 (February 1, 2009): 012010. http://dx.doi.org/10.1088/1742-6596/147/1/012010.

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Jiang, Changyong, and Lixi Huang. "Propagation of sound through a series of contraction micro-tubes." Journal of the Acoustical Society of America 141, no. 5 (2017): 3796–97. http://dx.doi.org/10.1121/1.4988375.

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SANDU, Constantin, and Dan BRASOVEANU. "Length Contraction with Speed Explained as a Relativistic Doppler Effect." JOURNAL OF ADVANCES IN PHYSICS 13, no. 3 (2017): 4740–42. http://dx.doi.org/10.24297/jap.v13i3.6125.

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In this paper the authors show that the ‘mechanism’ of length contraction is simple and can be explained by the wave feature of body micro-components.From this point of view, the length contraction with speed perceived by a fixed observer is a Doppler relativistic effect.
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Glassberg, M. K., K. B. Nolop, J. T. Jackowski, W. M. Abraham, A. Wanner, and U. S. Ryan. "Microvascular and macrovascular endothelial cells produce different constrictor substances." Journal of Applied Physiology 72, no. 5 (1992): 1681–86. http://dx.doi.org/10.1152/jappl.1992.72.5.1681.

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The media from cultured microvascular and macrovascular endothelial cells (conditioned media, CM) were collected and tested for constrictor activity in sheep coronary artery rings and tracheal smooth muscle strips in vitro (isometric force), expressed as percentage of contraction produced by 80 mM KCl. Both microvascular (micro) and macrovascular (macro) CM caused a sustained slow-onset contraction (P less than 0.05) of the coronary artery rings by 71 +/- 10% (micro; n = 7) and 67 +/- 8% (macro; n = 6) and tracheal smooth muscle strips by 33 +/- 14% (micro; n = 6) and 34 +/- 6% (macro; n = 11)
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Dissertations / Theses on the topic "Micro-contraction"

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Hemminger, Orin L. "Visualizing and Understanding Complex Micro/Nanofluidic Flow Behavior." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1275398565.

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Ma, Wenjing. "Automatic Transformation and Optimization of Applications on GPUs and GPU clusters." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1300972089.

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Chalfi, Toufik Yacine. "Pressure loss associated with flow area change in micro-channels." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/24725.

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"Statistical inference of muscle contraction pattern from micro electrode data." 2013. http://library.cuhk.edu.hk/record=b5934634.

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微電列陣今已被廣泛用於各種生理和理的研究。通過把微電列陣連接到肌肉細胞,細胞外的電生理信號會被有效地記錄,我們進而對尖峰信號的傳播模式進行分析,以便了解肌肉收縮的模式。本文旨在對觀測到的電生理信號進行統計模型擬合,從而獲得對於肌肉收縮模式的統計推論。我們提出了三種方法用以提取尖峰信號的激活時間,分別為均值方差法、局部加權回歸法(LOWESS方法)和Butterworth濾波法。然後對抽取出來的尖峰信號應用隨機Hough轉換,識別出多個傳播的信號波,從而得到肌肉收縮的率。對於每個信號波,我們建立了兩個模型來描述信號的傳播模式,即圓形波陣面模型和線性波陣模型。通過這兩種模型擬合,表達信傳播特徵的參數可被估算,例如激發信號波的起源位和起始時間,信號的傳播方向以及速度等。利用根據兩種模型合成的模擬數據,我們證明了隨機霍夫轉換算法和模型擬合的有效性及準確性,並把文中提出的算法用於大鼠心肌培養細胞的一個數據集。由此數據集得出的結果可以用於監測細胞的電生理變化,從而闡明藥物或環條件對心肌細胞產生的影響。<br>The microelectrode array (MEA) has been widely used in physiological and pharmacological research. By attaching the MEA system to muscle cells, e
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Castaños-Martínez, Eduardo. "Contraction et décontraction des décharges micro-ondes entretenues à la pression atmosphérique." Thèse, 2010. http://hdl.handle.net/1866/4562.

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Les colonnes de plasma entretenues par un champ électrique (continu ou alternatif) à haute pression (p > 10 Torr) sont affectées par les phénomènes de contraction (réduction de la section radiale de la décharge) et de filamentation (fragmentation de la section de plasma en plusieurs filaments). La compréhension de ces phénomènes ainsi que le développement d’une méthode pouvant les supprimer demeurent une étape essentielle pour l’optimisation de certains procédés plasma. Dans cette optique, un premier objectif de notre travail était de déterminer les mécanismes à l’origine de la contraction et
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Chuang, Sway, and 莊世瑋. "Flow and Heat Transfer Characteristics of Non-Newtonian Fluid Through a Micro Contraction Spinneret." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/52191916114869425650.

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Chi-HsunYang and 楊季恂. "Quantitative measurement of optogenetic induced contraction force in single smooth muscle cell by micro-detectors." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/b3qzea.

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Kabouzi, Yassine. "Contraction et filamentation des décharges micro-ondes entretenues à la pression atmosphérique : application à la détoxication des gaz à effet de serre." Thèse, 2003. http://hdl.handle.net/1866/14748.

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Castaños-Martínez, Eduardo. "Influence de la fréquence d'excitation sur les phénomènes de contraction et de filamentation dans les décharges micro-ondes entretenues à la pression atmosphérique." Thèse, 2004. http://hdl.handle.net/1866/17337.

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Book chapters on the topic "Micro-contraction"

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Marcucci, L., and T. Yanagida. "Micro-mechanical Model of Muscle Contraction." In IFMBE Proceedings. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-14515-5_195.

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Tsui, Chi Pong, Chak Yin Tang, Chi Loong Chow, S. C. Hui, and Y. L. Hong. "Active Finite Element Method for Simulating the Contraction Behavior of a Muscle-Tendon Complex." In Macro-, Meso-, Micro- and Nano-Mechanics of Materials. Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-979-2.9.

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Mahomed, Nawaz. "Shrinkage Porosity in Steel Sand Castings: Formation, Classification and Inspection." In Casting Processes and Modelling of Metallic Materials. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.94392.

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In this Chapter, shrinkage porosity defects in steel castings are analysed, particularly for low carbon, high alloyed steels, which have applications in critical engineering components. It begins with the mechanisms for porosity formation within the solidification contraction phase of the casting cycle, highlighting the importance of feeder design. This is followed by characterisation of the solidification phase of steel alloys, including the evolution of phases, which is important in distinguishing between microstructure and porosity in microscopy analysis. A more detailed discussion of interdendritic feeding and mechanisms for shrinkage micro-porosity is then provided. This leads to the well-established interdendritic flow model and commonly-used thermal criteria for shrinkage porosity prediction. The discussions are then consolidated through the classification of shrinkage porosity in terms of formation mechanisms and morphology, and its causes relating to composition, design and process conditions. Finally, engineering standards for classification and inspection of porosity types and severity levels in steel castings are discussed. Throughout, basic design and process improvement approaches for improving melt feeding during solidification contraction is given, with emphasis on providing practical solutions for prediction and evaluation of shrinkage porosity defects in castings.
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Conference papers on the topic "Micro-contraction"

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Sharma, Vikas, and Sushanta Dutta. "Flow Analyses of a Contraction-Expansion Microchannel using micro-PIV." In Proceedings of the 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2019). Begellhouse, 2019. http://dx.doi.org/10.1615/ihmtc-2019.1480.

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Carlson, Daniel, Simon Haward, and Amy Shen. "Video: Illuminating views on viscoelastic vortices in 3D micro-contraction flows." In 73th Annual Meeting of the APS Division of Fluid Dynamics. American Physical Society, 2020. http://dx.doi.org/10.1103/aps.dfd.2020.gfm.v0043.

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Patel, S., and D. Drikakis. "Fluid Flow Bifurcation in Micro-Channels." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-55615.

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The paper presents a numerical study of incompressible fluid flow through micro-channels. Using a high-resolution numerical method (second-order accurate) in conjunction with a non-linear multigrid algorithm and the pseudo-compressibility approach, we have investigated micro-flows through straight channels, as well as through a sudden contraction-expansion geometry. For the straight channel geometry, the computational results are in reasonable agreement with the experimental data for various low Reynolds numbers. For the contraction-expansion geometry, the results reveal the flow transition to
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Gulati, Shelly, Susan J. Muller, and Dorian Liepmann. "Direct Measurements of Viscoelastic Flows in Micro-Contractions." In ASME 3rd International Conference on Microchannels and Minichannels. ASMEDC, 2005. http://dx.doi.org/10.1115/icmm2005-75204.

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Direct measurement techniques are employed to quantify the kinematics of DNA flows in micro-contraction devices. Flow through micro-contractions subjects the fluid to large spatial gradients in velocity, thereby eliciting viscoelastic effects. Additionally, in this microfluidic flow environment, the fully extended length of the macromolecule L will approach the characteristic length scale of the channel geometry h. This is a unique flow environment that is not yet well understood. Knowledge of the fundamental physics that govern this flow regime will have a profound impact on optimization of l
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Chein, Reiyu, and Baogan Chung. "Electrokinetic Transport in Micro-Nanofluidic Systems With Sudden-Expansion and Contraction Cross Sections." In ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer. ASMEDC, 2009. http://dx.doi.org/10.1115/mnhmt2009-18120.

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In this study, electrokinetic transport in a micro-nanofluidic system is numerically investigated by solving the transient Poisson, Nernst-Planck, and Navier-Stokes equations simultaneously. The system considered is a nanochannel connected with two microchannels at its ends. Under various applied electric potential biases, the effect of concentration polarization on the fluid flow, induced pressure and electric current is examined. By comparing with the Donnan equilibrium condition and electroosmotic flow in microscale dimension, electric body force due to non-zero charge density is the mechan
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Oka, Taiki, Ruri Hidema, Hiroshi Suzuki, and Yoshiyuki Komoda. "Effects of Contraction Ratio on Elastic Instability of Hyaluronate Solution in a Micro Channel." In ASME/JSME/KSME 2015 Joint Fluids Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/ajkfluids2015-18556.

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Flow behaviors of sodium hyaluronate (HA-Na) in water solution and in phosphate buffered saline (PBS) solution as a viscoelastic fluids in planer abrupt contraction-expansion channels has been observed in this study. Especially, the effect of the geometry of the flow path on the flow behavior was focused on. The corner vortices in the corner of the upper region in the abrupt contraction-expansion channels were also analyzed to quantify the flow characteristics. The elasticity numbers of the solution, which is affected by rheological properties of the solution and the channel geometry had a big
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Meng, Zhaotong, Evan C. Lemley, and Mohammad R. Hossan. "Second Law Analysis of Different Channel Geometries for Micro-Mixing." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-51783.

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Micro-mixing in different channel geometries may increase entropy generation and lead to improved efficiency of fluid mixing. The entropy generation rate corresponds to irreversibility due to the heat transfer and viscous effects in fluid flow through a channel. The objectives of this study are to validate the entropy generation rate of three expansion/contraction geometries [1] by using an analysis based on the Second Law of Thermodynamics (SLT) numerically and to study how entropy generation rate changes by placing flow obstacles in the channel. The geometries presented are not unique. In th
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ZHU, Yu-Yuan, Qian-Kun YANG, Jian-Xun FU, Hong-Gang ZHONG, and Qi-Jie ZHAI. "Study on X60 Micro Alloy Steel'S Solidification Characteristics Based on Linea Contraction-thermal Stress Measuring." In 3rd International Conference on Material Engineering and Application (ICMEA 2016). Atlantis Press, 2016. http://dx.doi.org/10.2991/icmea-16.2016.73.

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Chung, Changkwon, Ju Min Kim, Martien A. Hulsen, et al. "Effect of Viscoelasticity on Drop Deformation in 5:1:5 Contraction∕Expansion Micro-Channel Flow." In THE XV INTERNATIONAL CONGRESS ON RHEOLOGY: The Society of Rheology 80th Annual Meeting. AIP, 2008. http://dx.doi.org/10.1063/1.2964912.

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Merlen, Alain. "Hydrodynamical Theoretical Solutions for Peristaltic Microchannels." In ASME 4th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2006. http://dx.doi.org/10.1115/icnmm2006-96033.

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Three analytical solutions describing the 2D Stokes flow in a peristaltic micro-channels are presented. The paper is concerned with pure hydrodynamics discarding any other physical phenomenon like electrical forces. This allows the derivation of analytical results when the problem is share into three main parts: the effect of the contraction on its vicinity, the squeezing of the fluid near the contraction and the effect of wavy walls that is related to the problem of the wall quality which depends on the elaboration process. The results can be considered as reference touch stones for these flo
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