نتایج جستجو برای: circular panels
تعداد نتایج: 83057 فیلتر نتایج به سال:
Effects were studied of 200 ppm silver and copper nano-suspensions, with size range from 20 to 80 nm, on the hardness of particleboards produced at an industrial scale at the Iran-Choob Factory, Iran. Metal nano-suspensions were added to the mat at two levels of 100 and 150 milli-liters/kg dry weight wood particles, and the results were compared with those of the control panels. Results showed ...
In the search for effective immunologic interventions to prevent and treat HIV-1 infection, standardized reference reagents are a cost-effective way to maintain robustness and reproducibility among immunological assays. To support planned and ongoing studies where clade C predominates, here we describe three virus panels, chosen from 200 well-characterized clade C envelope (Env)-pseudotyped vir...
Buckling under compression is a common phenomenon for thin-walled structures. Under certain conditions, they can also buckle locally under tensile loads. In this paper, the buckling of cracked panels is investigated. Effects of some parameters such as the length and orientation of crack, length, width and thickness of the panel and boundary conditions on the compressive and tensile buckling loa...
One of the most important problem in any statistical analysis is the existence of unexpected observations. Some observations are not a part of the study and are known as outliers. Studies have shown that the outliers affect to the performance of statistical standard methods in models and predictions. The point of this work is to provide a couple of statistical package in R software to identi...
in this study, the vibration behavior of functional graded (fg) circular and annular nanoplate embedded in a visco-pasternak foundation and coupled with temperature change is studied. the effect of in-plane pre-load and temperature change are investigated on the vibration frequencies of fg circular and annular nanoplate. to obtain the vibration frequencies of the fg circular and annular nanopla...
Abstract Additive manufacturing provides the possibility for innovative structural configurations promoting optimized material use economy and sustainability, new functions which are not available traditional products. This paper explores to wire‐and‐arc directed energy deposition process fabrication of WAAM stiffener thin plated structures. The proposed solution is demonstrated in several geom...
BACKGROUND This paper has two goals. First, we explore the feasibility of conducting online expert panels to facilitate consensus finding among a large number of geographically distributed stakeholders. Second, we test the replicability of panel findings across four panels of different size. METHOD We engaged 119 panelists in an iterative process to identify definitional features of Continuou...
Fossil fuel consumption problems and water crisis are serious dangers. Using renewable energy is a solution to reduce fossil fuel consumption. Photovoltaic is a renewable energy generation method which is abundantly used all over the world. By installation of solar panels on the surface of water, the efficiency of panels increases and in addition, the surface evaporation of water will be reduce...
southern hardwood flakes. Two major steps toward industrial practicability were accomplished with formulation of an economical fast-cure phenolic binder for both hardwood flakes and pine veneer', and laboratory demonstration that the panels could be hot. pressed in a one-step operation2. It has yet to be shown, however, that the one-etep technique practical for 20by 2O-inch panels will work on ...
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