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| 1 | Time-dependent viscoelastic properties along rat small intestine显示文摘AIM: To measure the time-dependent (viscoelastic)behavior in the change of the small intestinal opening angle and to test how well the behavior could be described by the Kelvin model for a standard linear solid.METHODS: Segments from the duodenum, jejunum, and ileum were harvested from 10 female Wistar rats and the luminal diameter, wall thickness, and opening angleover time (θ(t)) were measured from rings cut from thesesegments.RESULTS: Morphometric variations were found along thesmall intestine with an increase in luminal area and adecrease in wall thickness from the duodenum to theileum. The opening angle obtained after 60 min washighest in the duodenum (220.8±12.9°) and decreasedalong the length of the intestine to 143.9±8.9° in the jejunum and 151.4±9.4° in the ileum. The change ofopening angle as a function of time, fitted well to theKelvin model using the equation θ(t)/θo = [1-ηexp (-λt)]after the ring was cut. The computed creep rate λ did notdiffer between the segments. Compared to constantcalculated from pig aorta and coronary artery, it showedthat α agreed well (within 5%), η was three times largerthan that for vascular tissue, and λ ranged ±40% from the value of the pig coronary artery and was a third of the value of pig aorta.CONCLUSION: The change of opening angle over timefor all the small intestine segments fits well to the standardlinear spring-dashpot model. This viscoelastic constantof the rat small intestine is fairly homogenous along itslength. The data obtained from this study add to a baseset of biomechanical data on the small intestine andprovide a reference state for comparison to other tissues,diseased intestinal tissue or intestinal tissue exposed todrugs or chemicals. | James B Smith Jing-Bo Zhao Yan-Ling Dou Hans Gregersen | 2005 | World Journal of Gastroenterology2005，11，32： | 2 |
| 2 | Analysis of radome using aperture integration-surface integration method with modified transmission coeffieient显示文摘 | Meng H F Dou W B Chen T T | 2009 | Journal of Infrared Mil- limeter and Terahertz Waves2009，30，2： | 1 |
| 3 | Radiolysis and photolysis studies on active transient species of diethylstilbestrol 显示文摘 | Dou D Y Liu Y B Zhao H W | 2005 | Journal of Photochemistry and Photobiology A :Chemistry2005，171，： | 1 |
| 4 | Changing expression profiles of lncRNAsmRNAs, circRNAs and roiRNAs during osteoclastogenesis显示文摘 | Dou C Cao Z Yang B | 2016 | Sci Rep2016，6，21： | 1 |
| 5 | Blown bubble-spinning for fabrication of superfine fibers显示文摘 | DOU H ZUO B Q HE J H | 2012 | Thermal Science2012，16，5： | 1 |
| 6 | Evolution of control models for secondary cooling in continuous casting process of steel显示文摘 | Dou Z C Liu Q Wang B | 2011 | Steel Research International2011，82，10： | 1 |
| 7 | Prediction of SO2 removal efficiency for wet flue gas desulfurization 显示文摘 | Dou B Pan W Jin Q | 2009 | Energy Convers Manage2009，50，10： | 1 |
| 8 | Reaction of solid sorbens with hydrogen chloride gas at high temperature in a fixed-bed reactor显示文摘 | Dou B L Chen B B Gao J S | 2005 | Energy&Fuels2005，19，： | 1 |
| 9 | Prediction of SO2 removal efficiency for wet flue gas desulfurization显示文摘 | Dou B L Pan W G Jin Q | 2009 | Energy Conversion and Management2009，50，10： | 1 |
| 10 | Steam reforming of crude glycerol with in situ CO2 sorption显示文摘 | Dou B L Rickett G Dupont V | 2010 | Bioresource Technology2010，101，7： | 1 |
| 11 | Induction of a retinoblastoma phosphatase activity by anticancer drugs accompanies p53-independent G1 arrest and apoptosis 显示文摘 | Dou QP An B Will PL | 1995 | Pro Natl Acad Sci USA1995，92，： | 1 |
| 12 | A study on the reaction kinetics of HCI removal from high-temperature coal gas显示文摘 | Dou B L Gao J S Sha X Z | 2001 | Fuel Processing Technology2001，72，1： | 1 |
| 13 | A comparative study on perovskitetype mixed oxide catalysts A'xA1-xBO3-λ (A'=Ca,Sr,A=La,B=Mn,Fe,Co) for NH3 oxidation显示文摘 | Wu Y Yu T Dou B S | 1989 | Journal of Catalysis1989，120，1： | 1 |
| 14 | Zmodyfikowana kompleksowa metoda oceny stanu zagrozenia tapeniami w kopalniach wegla kamiennego显示文摘 | Dou Linming Drzezla B | 1998 | Preglad Gorniczy1998，54，11： | 1 |
| 15 | Compression behaviors of cenosphere-pure aluminum syntactic foams 显示文摘 | WU G H DOU Z Y SUN D L JIANG L T DING B S HE B F | 2007 | Scripta Materialia2007，56，3： | 1 |
| 16 | Neighborhood Systems-based Rough Sets in Incomplete Information System 显示文摘 | YANG X B ZHANG M DOU H L | 2011 | Knowledge-based Systems2011，，24： | 1 |
| 17 | Preparation and characterization of a dialdehyde starch crosslinked feather keratin film for food packaging application显示文摘 | DOU Y HUANG X ZHANG B N | 2015 | Rsc Advances2015，5，27： | 1 |
| 18 | A novel closed loop identification method and its application of multivariable system显示文摘 | Jin Q B Cheng Z J Dou J | 2012 | Jour- nal of Process Control2012，22，1： | 1 |
| 19 | Activating glucocorticoid receptor-ERK signaling pathway contributes to ginsenoside Rg1 protection against beta-amyloid peptide-induced human endothelial cells apoptosis显示文摘 | Yan J P Liu Q B Dou Y | 2013 | J Ethnopharmacol2013，147，2： | 1 |
| 20 | High temperature HCI removal with sorbents in a fixed-bed reactor显示文摘 | Dou B L Gao J S Baek S W | 2003 | Energy & Fuels2003，17，4： | 1 |
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