نتایج جستجو برای: strength value and elasticity p

تعداد نتایج: 17086344  

Journal: :iranian journal of radiology 0
xiao zhi zheng department of ultrasound, jinling hospital, nanjing university school of medicine, nanjing, the people's republic of china; department of ultrasound, the fourth affiliated hospital of nantong, yancheng, the people's republic of china bin yang department of ultrasound, jinling hospital, nanjing university school of medicine, nanjing, the people's republic of china; department of ultrasound, jinling hospital, nanjing university school of medicine, nanjing, the people's republic of china. tel: +86-2580861314, fax: +86-2580863136 ning hua fu department of ultrasound, jinling hospital, nanjing university school of medicine, nanjing, the people's republic of china

conclusion vttq can sensitively detect the elasticity changes in patients with ckd, and it can effectively predict renal insufficiency. this technology provides a valuable tool for the assessment of ckd. patients and methods sixty-five patients with ckd and seventy healthy participants were included in this study. a total of 270 kidneys were examined by vttq. the kidney elasticity was expressed...

2006
Melida Chin S. Jack Hu James R. Barber

Multiple parameters are involved in the design of anisotropic conductive adhesive assemblies, and the overlapping influences that they have on the final electrical contact resistance represent a difficult challenge for the designers. The most important parameters include initial bonding force F, number of particles N, the adhesion strength GA, and modulus of elasticity E of the cured resin. It ...

Journal: :The European physical journal. E, Soft matter 2013
Santosh Mogurampelly Bidisha Nandy Roland R Netz Prabal K Maiti

Negatively charged DNA can be compacted by positively charged dendrimers and the degree of compaction is a delicate balance between the strength of the electrostatic interaction and the elasticity of DNA. We report various elastic properties of short double-stranded DNA (dsDNA) and the effect of dendrimer binding using fully atomistic molecular dynamics and numerical simulations. In equilibrium...

Journal: :journal of dentistry, tehran university of medical sciences 0
fahimeh hamedi-rad assistant professor, department of prosthodontist, dental faculty of tabriz medical science university, tabriz, iran. tahereh ghaffari assistant professor, department of prosthodontist, dental faculty of tabriz medical science university, tabriz, iran. farzad rezaii dentist, department of georesources and materials engineering, university of michigan-ann arbor. ali ramazani associate researcher, department of georesources and materials engineering, university of michigan-ann arbor.

polymethyl methacrylate (pmma), widely used as a prosthodontic base, has many disadvantages, including a high thermal expansion coefficient and low thermal conductivity, a low elasticity coefficient, low impact strength and low resistance to fatigue. this study aimed to make an in vitro comparison of the thermal conductivity, compressive strength, and tensile strength of the acrylic base of com...

Journal: :American Journal of Science 1907

Introduction: Grip and pinch strength assess the function of hand and is considered as a sign of general health. Considering the high prevalence of related-work musculoskeletal disorders (WMSDs) due to the incongruity of work with the workers and preventability of diseases that are caused by such incongruity, we decided to study the relationship between maximum oxygen consumption (Vo2max) and w...

Journal: :تحقیقات مهندسی کشاورزی 0
علی ماشاءاله کرمانی استادیار پژوهش بخش تحقیقات فنی و مهندسی مرکز تحقیقات کشاورزی و منابع طبیعی قزوین تیمور توکلی هشتجین استاد دانشگاه تربیت مدرس سعید مینایی دانشیار دانشگاه تربیت مدرس

an understanding of the strength of rice grains as affected by moisture content and temperature is important for analysis and prediction of cracking and/or breakage behavior during handling and processing. further, the magnitude of these properties at various moisture contents and temperatures is needed for the accurate design of milling machinery so that grain damage is minimized. to determine...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1997
C G Baumann S B Smith V A Bloomfield C Bustamante

We used a force-measuring laser tweezers apparatus to determine the elastic properties of lambda-bacteriophage DNA as a function of ionic strength and in the presence of multivalent cations. The electrostatic contribution to the persistence length P varied as the inverse of the ionic strength in monovalent salt, as predicted by the standard worm-like polyelectrolyte model. However, ionic streng...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه پلیمر و پتروشیمی ایران - پژوهشکده پتروشیمی 1389

this is an original study on the effect of a polyisobutylene – polydimethylsiloxane (pibpdms) block copolymer modifier used as an interfacial active agent on the dynamics behaviour of single newtonian drops suspended in a polyisobutylene (pib) newtonian matrix. the results were divided in two sections. the first part included the experiments carried out on the non-modified and 2% block cop...

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