نتایج جستجو برای: solid two
تعداد نتایج: 2588210 فیلتر نتایج به سال:
Synchronous generators are of two type’s salient pole type and round rotor type. The load angle curve of a cylindrical rotor synchronous machine comprises a single sine term only while in salient pole synchronous generators, power-angle characteristic has two terms. The first term is the fundamental component due to field excitation (the same as the cylindrical rotor) and the second term ...
Background and Objective: One of the most concerns about the use of implant treatments is bacterial leakage between the fixture and abutment at the connection. The aim of this study was to evaluate the bacterial leakage rate at the interface of ITI fixtures and ITI, DIO and OSSTEM solid abutments. Materials and Methods: Thirty ITI fixtures were divided into three groups (n=10) based on t...
Two-interconnected fluidized bed systems are widely used in various processes such as Fisher-Tropsch, hot gas desulfurization, CO2 capture-regeneration with dry sorbent, chemical-looping combustion, sorption enhanced steam methane reforming, chemical-looping hydrogen generation system, and so on. However, most of two-interconnected fluidized beds systems require riser and/or pneumatic transport...
amebloblastoma as the most common epithelial odontogenic neoplasm may occur in two forms of central and peripheral. this report presents a case of a 41-year-old iranian female with a six-month complaint from a painless mass in the right posterior portion of the mandible. the case was diagnosed as an exophytic epulis-like peripheral component with characteristics of peripheral ameloblastoma and ...
This paper presents a numerical investigation for laminar forced convection flow of a radiating gas in a rectangular duct with a solid element that makes a backward facing step. The fluid is treated as a gray, absorbing, emitting and scattering medium. The governing differential equations consisting the continuity, momentum and energy are solved numerically by the computational fluid dynamics t...
in the present study, the capability of accumulative roll bonding (arb) and subsequent heat-treatment to fabricate solid solution from a multilayered cu/zn/al was investigated. two post-heat treatment (one-step and two-step) routes were proposed. in the first, the arb processed material was heated to 800 c for 5:30 hours and allowed to cool slowly in a furnace (one-step route). in the second (t...
background: this study assessed the clinical usefulness of the solid phantom, which may compensate for the disadvantages of the water phantom, by comparing the radiological doses between the two depending on their depths. materials and methods: the experimental equipment used was a linear accelerator for medical use, water phantom, solid phantom, farmer type ion chamber and electrometer. the di...
Use of plasticizers in the formulation of solid propellants especially double-base solid propellants is inevitable. Double base propellants are composed of nitrocellulose (NC) polymer. Plasticizers cause to increase flexibility, reduce viscosity and glass transition temperature. Energetic azido ester plasticizers are compatible with energetic binders in solid propellants. In this work, five dif...
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