نتایج جستجو برای: mechanical handling
تعداد نتایج: 306153 فیلتر نتایج به سال:
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...
after harvesting, pistachio nuts are generally kept in storage before being exported. during handling, thenuts are exposed to external forces that cause mechanical damage to them. the increase of the mechanicaldamage is a function of storage conditions, especially temperature. this research investigated the effect ofstorage temperature (25, 5, -5, -15°c), on the mechanical properties of pistach...
Abnormal intracellular calcium (Ca(2+)) handling can trigger endoplasmic reticulum (ER) stress, leading to activation of the unfolded protein response (UPR) in an attempt to prevent cell death. Mechanical unloading with a left ventricular assist device (LVAD) relieves pressure-volume overload and promotes reverse remodeling of the failing myocardium. We hypothesized that mechanical unloading wo...
The losses in fruits and vegetables in various postharvest operations remained high in which tomato is one of the major vegetable fruit. Tomato is a sensitive vegetable whose quality is substantially reduces due to physical damage encountered by various mechanical forces in harvesting, handling and other postharvest operation. In this study an attempt was made to determine mechanical properties...
Comparative Evaluation of Surface Hardness of Different Resin-Modified Glass Ionomers and a Compomer
Introdouction: Due to the practical problems and time restriction issues in treating dental problems in children, there is a noticeable demand for the application of a convenient handling restorative material with acceptable physical-mechanical properties. The aim of this investigation was to evaluate Vickers microhardness of four tooth-colored restorative materials as a determining mechanical...
OBJECTIVE Mechanical bowel preparation is a common practice before laparoscopic gynecologic surgery. This study aims to evaluate its capacity to improve surgical view and bowel handling in the deep pelvis. METHODS A single-blinded, randomized, controlled trial was undertaken with laparoscopic gynecologic surgical patients assigned to one of the following three groups: fasting only; minimal re...
This paper reviews the activities in the field of microrobotics of two closely co-operating microsystem groups in Finland. Topics covered include mechanical and biological micromanipulators, microactuator modeling, modeling of handling tasks and prototyping gastrointestinal biotelemetering device.
This paper consists of three parts. First, with a slightlydifferent, yet, more physically-plausible, discrete supply-rate (i.e. power), we propose a non-iterative (i.e. fast) and variablestep numerical integration algorithm for (scalar) discrete-passive mechanical systems, consisting of constant mass and damper, and a certain class of nonlinear spring. In the second part, we propose a fast pass...
Background: mechanical bowel preparation (MBP) is a common practice before laparoscopic gynecologic surgeries but the role and efficacy of preparation have been questioned. this study assesses visualization and bowel handling in a group of patients who receive MBP and the control group and thereafter; compares the results. Methods: We designed and conducted this randomized, single-blinded and ...
conclusion according to the results of our series, percutaneous liver biopsy using the tru-cut biopsy gun guided by ultrasonography can be performed safely. we resolve that routine ultrasound of the puncture site is a quick, effective and safe procedure. the complication rate is very low. the us-assisted percutaneous liver biopsy should be used for all cases. results a total of 1018 patients we...
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