نتایج جستجو برای: longitudinal direction

تعداد نتایج: 275619  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2005
mahmoud bayat abbas taeb saeed rastegar

crystallization of aluminum fluoride at atmospheric pressure has been considered. structure, size and shape of crystals formed during the crystallization process have been investigated. by applying the direct analysis method for the existed aluminum in solution, the aluminum fluoride nucleation process has been detected as a concentration valley at the outset of crystallization process. the lin...

2016
Effat Soleimani Manijhe Mokhtari-Dizaji Hajir Saberi Shahram Shams Hakimi Somaie Raiesdana

Introduction: In this study, a non-invasive method based on consecutive ultrasonic image processing is introduced to assess time rate changes of the carotid artery wall displacement, velocity and acceleration in the longitudinal direction. The application of these parameters to discriminate healthy and atherosclerotic arteries was evaluated. Methods: Longitudinal displacement rate of common car...

2001
J. C. Lodder

Magnetic domains in obliquely sputtered Co films on a polymer substrate have been investigated with magnetic force microscopy. The growth angle has been found to strongly affect the domain structure as well as the magnetic properties, due to changes in the microstructure. At large angles finite-size elongated domains oriented in the longitudinal direction ~projection of the growth direction on ...

Journal: :Nanotechnology 2015
Jin-Wu Jiang

The single-layer black phosphorus is characteristic for its puckered structure, which has led to distinct anisotropy in its optical, electronic, and mechanical properties. We use the non-equilibrium Green's function approach and the first-principles method to investigate the thermal conductance for single-layer black phosphorus in the ballistic transport regime, in which the phonon-phonon scatt...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی 1392

flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...

2016
Hong Liu Dan Yang Yong Luo Ke Wan Tianjing Zhang Yucheng Chen

Background Myocardial strain was regarded as a sensitive parameter to quantify left ventricular function. Feature tracking CMR is emerging as a new simple and reliable technique to evaluate myocardial strain. In the present study, we were sought to investigate the distribution characteristics of left myocardial strain on the transmural direction or longitudinal direction in healthy Chinese subj...

Journal: :Optics letters 2010
Johannes Courtial Blair C Kirkpatrick Eric Logean Toralf Scharf

We observe imaging through windows comprising pairs of confocal lenslet arrays that have different focal lengths but that are otherwise identical. Image space is stretched in the longitudinal direction only. Such windows are examples of METATOYs, optical components that can change light-ray direction in ways that appear wave-optically forbidden.

2005
Vladimir G. Fast Andre G. Kleber

Anisotropic impulse conduction was studied in neonatal rat heart cell monolayers produced by culturing cells on a growth-directing substrate of collagen. Monolayers consisting of parallel-oriented cells without visible intercellular clefts were selected for experiments; cell lengths and widths were 65.8±+12.5 and 12.2+3.2 gm (n=49), respectively. Action potential upstrokes were measured by usin...

Journal: :journal of applied and computational mechanics 0
amalia argyridi institute of structural analysis & aseismic research school of civil engineering national technical university of athens zografou campus athens 157 80, greece evangelos sapountzakis institute of structural analysis & aseismic research school of civil engineering national technical university of athens zografou campus athens 157 80, greece

the finite element method is employed for the flexural-torsional linear buckling analysis of beams of arbitrarily shaped composite cross-section taking into account generalized warping (shear lag effects due to both flexure and torsion). the contacting materials, that constitute the composite cross section, may include a finite number of holes. a compressive axial load is applied to the beam. the...

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