نتایج جستجو برای: active triple phase boundary length

تعداد نتایج: 1468598  

2011
Liu Hui Bing Yu

INTRODUCTION Phase ratio is a measure of effort distribution in the triple jump, and defined as the ratio of three phase distances of the triple jump. Hop-dominant, balanced, and jump-dominant techniques were three triple jump techniques defined based on phase ratio. Although previous studies demonstrated that individualized optimal phase ratios exist [3], the importance of the phase ratio cann...

Journal: :Electrochimica Acta 2021

High power density operation is essential for cost reduction in solid oxide fuel cells (SOFCs), and thus the present work proposes a highly active Gd0.5Sr0.5CoO3−δ (GSC) Ce0.8Gd0.2O1.9 (GDC) nanocomposite cathode intermediate-temperature SOFCs. Its structure formed by using GSC-GDC particles synthesized via spray pyrolysis, which produces uniform-sized secondary consisting of nano-sized GSC GDC...

In this study, heat transfer coefficients are measured for diesel-water two-phase flow in a horizontal pipe for dual continuous, dispersion of oil in water and dispersion of water in oil flow patterns. Flow patterns are observed using high speed photography for diesel-water mixture and two phase heat transfer data are obtained under a uniform heat flux boundary condition. The test section is a ...

2007
Matilde Marcolli

To a compact hyperbolic Riemann surface, we associate a finitely summable spectral triple whose underlying topological space is the limit set of a corresponding Schottky group, and whose “Riemannian” aspect (Hilbert space and Dirac operator) encode the boundary action through its Patterson-Sullivan measure. We prove that the ergodic rigidity theorem for this boundary action implies that the zet...

2007
Gunther Cornelissen Matilde Marcolli

To a compact hyperbolic Riemann surface, we associate a finitely summable spectral triple whose underlying topological space is the limit set of a corresponding Schottky group, and whose “Riemannian” aspect (Hilbert space and Dirac operator) encode the boundary action through its Patterson-Sullivan measure. We prove that the ergodic rigidity theorem for this boundary action implies that the zet...

Journal: :iranian red crescent medical journal 0
masoomeh kheirkhah department of midwifery, school of nursing and midwifery, iran university of medical sciences, tehran, ir iran; deapartment of midwifery, school of nursing and midwifery, iran university of medical sciences, tehran, ir iran. tel: +98-9123660452, fax: +98-2634530685 nassimeh setayesh vali pour department of midwifery, school of nursing and midwifery, iran university of medical sciences, tehran, ir iran; deapartment of midwifery, school of nursing and midwifery, iran university of medical sciences, tehran, ir iran. tel: +98-9123660452, fax: +98-2634530685 leila neisani department of midwifery, school of nursing and midwifery, iran university of medical sciences, tehran, ir iran hamid haghani department of midwifery, school of nursing and midwifery, iran university of medical sciences, tehran, ir iran

results anxiety scores in the intervention groups in active phase after intervention were significantly lower than the control group (p < 0.001). anxiety scores before and after intervention in intervention groups in transitional phase was significantly lower than the control group (p < 0.001). patients and methods this clinical trial study was performed after obtaining informed written consent...

2018
Wanke Liu Xueyuan Jin Mingkui Wu Jie Hu Yun Wu

Cycle slip detection and repair is a prerequisite for high-precision global navigation satellite system (GNSS)-based positioning. With the modernization and development of GNSS systems, more satellites are available to transmit triple-frequency signals, which allows the introduction of additional linear combinations and provides new opportunities for cycle slip detection and repair. In this pap...

2013
J. P. Neidhardt V. Yurkiv W. G. Bessler

The formation of secondary phases in the porous electrodes is a severe mechanism affecting the lifetime of solid oxide fuel cells (SOFC). It can occur via various chemical mechanisms and it has a significant influence on cell performance due to pore clogging and deactivation of active surfaces and triple-phase boundary (TPB). We present a modeling and simulation study of nickel oxide formation ...

ژورنال: مجله دندانپزشکی 2005
روانمهر, حسین, سید جوادین, سید مصطفی,

Background and Aim: External apical root resorption is a common iatrogenic consequence of orthodontic treatment. Much controversy exists in the literature about changes in root lengths at post treatment periods. Although many practitioners believe that resorption becomes stable after active treatment, quantitative data are scarce. The purpose of this study was to determine quantitative changes ...

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