نتایج جستجو برای: pre stressing
تعداد نتایج: 315185 فیلتر نتایج به سال:
Weak acid resistance limits the application of Bifidobacteria as a probiotic in food. The acid tolerance response (ATR), caused by pre-stressing cells at a sublethal pH, could improve the acid resistance of Bifidobacteria to subsequent acid stress. In this study, we used Bifidobacterium longum sub. longum BBMN68 to investigate the effect of the ATR on the acid stress response (ASR), and compare...
A theoretical study of the stress-strain state helical cylindrical compression springs used in suspension vehicles during shot peening is carried out. The front spring studied by mechanical-mathematical methods and deformation theory plasticity, particular, method small elastic-plastic deformations. It established that reduces pre-stressing 2.54% due to an increase torque cross section coil 4.3...
The effects of electrical current stressing on the field emission characteristics of hydrogenated amorphous carbon (a-C:H) thin films are reported. In these a-C:H films an initial conditioning treatment of the film is often required before the onset of stable emission and only after several voltage cycles do the values of the threshold field tend to converge. By stressing of the film by applyin...
PURPOSE Oxidative stress plays a key role in the pathophysiology of glaucoma. This study was designed to assess ethyl pyruvate (EP) as a novel antioxidative agent in cultured human trabecular meshwork (hTM) cells. METHODS Primary hTM cells were cultured on collagen matrices. Tolerance to EP was assessed at various concentrations using fluorescent vital dyes (live/dead) and metabolic (1-(4,5-d...
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