نتایج جستجو برای: break
تعداد نتایج: 42596 فیلتر نتایج به سال:
Summary The unsteady reflection of dam-break flow along a horizontal channel by remote barrier is modelled using the nonlinear shallow water equations. interaction generates an upstream moving bore that connects collapsing reservoir fluid to rapidly deepening layer adjacent barrier. These motions are modified when released into containing pre-wetted layer, because oncoming itself headed alters ...
an experiment was conducted to evaluate the effects of some technological processes on the residual levels of imidacloprid in strawberry fruits and products. according to their half-life (t1/2) values, strawberry fruits can be safely harvested for human consumption 7.4 days after spraying. the removal ratio of imidacloprid residue in strawberries was in the range of 9.9–30.55% by washing with t...
purpose: to evaluate changes in tear condition following unilateral ptosis surgery. methods: in this case series all patients with unilateral ptosis who underwent ptosis surgery over a two-year period were studied. the patients did not have history of previous eye surgery or other eye problems. eyelid and lacrimal evaluation included schirmer’s test with and without anesthesia and tear break up...
The aim of this research is investigation of mechanical properties regarding the polyurethanes as the binder of plastic bonded explosives. Due to the great effect of mechanical properties on application of these materials, the influence of Isocyanate/Hydroxyl ratio, crosslink density, the type of curing agent, hard segment and temperature on mechanical properties of these materials were investi...
Hydroxyapatite is a biocompatible ceramic and reinforcement for bone implantations. SEVA/HAP composite content HAP filler with difference particle sizes were designed. Mechanical tests like tensile modulus, UTS, strain at break and biodegradation were investigated. Results illustrated much increase tensile modulus of composites content HAP nano powders ratio to micro powders. Also UTS analysis ...
In this paper, maximum value of energy to break at Charpy impact test as a criterion of fracture toughness of AISI 316/A387 Gr.91 weld joints with ERNiCrMo-3 filler metal were obtained by optimization of pulesd current gas tungsten arc welding process parameters. The selected parameters were peak current, background current, frequency and on time percentage that were changed in three levels. Th...
Hydroxyapatite is a biocompatible ceramic and reinforcement for bone implantations. SEVA/HAP composite content HAP filler with difference particle sizes were designed. Mechanical tests like tensile modulus, UTS, strain at break and biodegradation were investigated. Results illustrated much increase tensile modulus of composites content HAP nano powders ratio to micro powders. Also UTS analysis ...
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