نتایج جستجو برای: recovery strain

تعداد نتایج: 415409  

A. Shokuhfar, N. Ehseni S. Abbasi

Dynamic recrystallization, DRX, behaviour of a precipitation hardened, PH, stainless steel was studied in connection with microstructural developments in a compression test. The experimental results showed that the dominant mechanism of softening is DRX, but at high strain rates and low temperatures, ie, high Zener-Holman parameter, Z, work hardening and dynamic recovery, DRV, produced a pancke...

Journal: :Journal of biotechnology 2007
Hyohak Song Yun Suk Huh Sang Yup Lee Won Hi Hong Yeon Ki Hong

There have recently been much advances in the production of succinic acid, an important four-carbon dicarboxylic acid for many industrial applications, by fermentation of several natural and engineered bacterial strains. Mannheimia succiniciproducens MBEL55E isolated from bovine rumen is able to produce succinic acid with high efficiency, but also produces acetic, formic and lactic acids just l...

ژورنال: طب کار 2016
امینی, پیام, محمدیان مستان‌آباد, مهدی, معتمدزاده, مجید,

Introduction: Protective clothes are among the basic needs of firefighters against their occupational risks. Combination of heat stress effects caused by muscle activation and protective clothing, result in a high level of strain in the regulating system of body temperature. The aim of this study was to evaluate the practical cooling method of hand and forearm immersion in water. Methods: In...

Journal: :مهندسی بیوسیستم ایران 0
امین اله معصومی عباس همت علی شهریان

to reduce the storing space and handling costs for hay/straw bales, recompressing the original bales after adequate hay drying is recommended. in this project, a recompression machine was designed, constructed and evaluated. solidwork and nastran software were employed to model, and to analyze the stresses in the components of the machine, respectively. the components of the machine consisted o...

2017
Juan-Sebastian Arrieta Julie Diani Pierre Gilormini Juan-Sebastian ARRIETA Julie DIANI Pierre GILORMINI J. Sebastián Arrieta

An acrylate polymer network was submitted to thermomechanical shape memory cycles. The set of experiments characterized the material stress-free strain recovery and the strain-constrained stress recovery in uniaxial tension. Experimental parameters like temperature of strain fixation, amount of strain and heating rate, were varied in order to provide a relatively complete set of experimental da...

Journal: :Transfusion 2014
James C Zimring Nicole Smith Sean R Stowell Jill M Johnsen Lauren N Bell Richard O Francis Eldad A Hod Jeanne E Hendrickson John D Roback Steven L Spitalnik

BACKGROUND Red blood cell (RBC) transfusion is a lifesaving therapy, the logistic implementation of which requires RBC storage. However, stored RBCs exhibit substantial donor variability in multiple characteristics, including hemolysis in vitro and RBC recovery in vivo. The basis of donor variability is poorly understood. STUDY DESIGN AND METHODS We applied a murine model of RBC storage and t...

Journal: :American journal of physiology. Cell physiology 2010
Joseph A Roche Richard M Lovering Renuka Roche Lisa W Ru Patrick W Reed Robert J Bloch

We studied the response of dysferlin-null and control skeletal muscle to large- and small-strain injuries to the ankle dorsiflexors in mice. We measured contractile torque and counted fibers retaining 10-kDa fluorescein dextran, necrotic fibers, macrophages, and fibers with central nuclei and expressing developmental myosin heavy chain to assess contractile function, membrane resealing, necrosi...

Journal: :Korean journal of radiology 2017
Ji Won Lee Yeon Joo Jeong Geewon Lee Nam Kyung Lee Hye Won Lee Jin You Kim Bum-Sung Choi Ki Seok Choo

OBJECTIVE To evaluate the utility of cardiovascular magnetic resonance (CMR)-derived myocardial strain measurement for the prediction of poor outcomes in patients with acute myocarditis. MATERIALS AND METHODS We retrospectively analyzed data from 37 patients with acute myocarditis who underwent CMR. Left ventricular (LV) size, LV mass index, ejection fraction and presence of myocardial late g...

Journal: :Circulation 1976
A F Parisi J J Harrington J Askenazi R C Pratt K M McIntyre

The Valsalva maneuver was evaluated by echocardiography in three groups: A) 10 normal volunteers, B) 10 patients with no history of heart failure and normal ejection fractions, and C) 10 patients with heart failure and depressed ejection fractions. Groups A and B had a significant fall in left ventricular internal dimensions and calculated stroke volume by end strain which returned rapidly to b...

The role of microstructure on hot deformation behavior of sintered Cu-28Zn prealloyed powder compacts was investigated by a series of isothermal hot compression tests in the temperature range of 550- 850°C at strain rates of 0.001, 0.01, 0.1 and 0.5 s-1, by taking into consideration the Hyperbolic Sine functional behavior to analyze the deformation behavior of the alloy. The results indicate th...

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