نتایج جستجو برای: plate geometry

تعداد نتایج: 216153  

Journal: :iranian journal of public health 0
p tofighi a hossein-nezhad n sedighi zh maghbooli b larijani

background: the aim of this study was to investigate vertebral geometry changes and determine cutoff value of vertebral height to predict fractures. methods: in a cross-sectional study, 280 postmenopausal women recruited .in all subjects bone mineral density and radiog raphy of the lumbar spine performed. lateral radiographs were evaluated for identification of vertebral fractures, using a vali...

Journal: :New Journal of Physics 2021

How do you take a reliable measurement of material whose microstructure is random? When using wave scattering, the answer often to an ensemble average (average over time or space). By averaging we can calculate scattered and effective wavenumber. To date, literature has focused on calculating wavenumber for plate filled with particles. One clear unanswered question was how extend this approach ...

Journal: :Applied sciences 2021

The friction in the swash plate type axial piston pumps is mainly influenced by fluid film interface. piston–cylinder interface one of key interfaces pumps. geometry determined gap between and cylinder. dimensions parts determine geometry, deformation structure also influences geometry. viscosity strongly temperature. Thus, a novel approach studying film, structure, temperature interaction prov...

2015
Y. Zheng W. Sun

This paper describes a new approach which can be used to interpret the experimental creep deformation data obtained from miniaturized thin plate bending specimen test to the corresponding uniaxial data based on an inversed application of the reference stress method. The geometry of the thin plate is fully defined by the span of the support, l, the width, b, and the thickness, d. Firstly, analyt...

2013
W. Y. Lam Lingzhi Li R. K. L. Su H. J. Pam

As a new alternative design, plate-reinforced composite (PRC) coupling beam achieves enhanced strength and ductility by embedding a vertical steel plate into a conventionally reinforced concrete (RC) coupling beam. Based on a nonlinear finite element model developed in the authors' previous study, a parametric study presented in this paper has been carried out to investigate the influence of se...

Journal: :مدیریت شهری 0
halime pudine

the subject of geometry and proportions has been regarded as an issue which has a close relationship with architecture. since the entire universe, living beings and the human geometry can be seen clearly, that’s why our unconscious essence has accustomed to these proportions whereby reflection of this mentality can be seen in the architect’s hands and thought in the architecture. it can witness...

2014
Petar Sabev Varbanov Jiří Jaromír Klemeš Peng Yen Liew Jun Yow Yong Kunpeng Guo Nan Zhang Robin Smith

Small minimum temperature approach, large surface area per volume, high heat transfer efficiency and possibility of handling several streams of multi-stream plate-fin heat exchangers lead to more heat recovery and smaller heat exchanger size. Therefore, plate-fin heat exchangers have been applied extensively in sub-ambient processes. However, one major difficulty in optimising the design of pla...

Journal: :Journal of Physics: Conference Series 2022

Abstract Simulation of erosion wear and design optimization have been performed for a convective gas cooler with helical coil. Based on the results simulation standard flat baffle used in Shell gasification-based combined cycle unit, it is concluded that particle impact angle main factor determining maximum. To reduce erosion, necessary to install structural element instead align flow path ash ...

Journal: :Electronics 2015
Yong-Sik Kim Nicholas G Dagalakis Chiara Ferraris Svetlana Avramov-Zamurovic

Rotational rheometers are used to measure paste properties, but the test would take too long to be useful for quality control (QC) on the job site. In this paper, a new type of rheometer is proposed based on a one degree of freedom (DOF) micro-electro-mechanical systems (MEMS)-based motion stage. Preliminary data will be presented to show the capability of the system to measure the viscoelastic...

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