نتایج جستجو برای: masood fekri
تعداد نتایج: 99 فیلتر نتایج به سال:
Time geography approach provides quantifiable measures in the form of Time-space prisms which are used for analyzing individual activity spaces resulting from household activity-travel decisions. In the recent concerns to improve accessibility of rural households in developing countries, the need to develop a framework to study economics of household decision-making in the light of their timesp...
S. S. Masood,1,* S. Nasri,2,† J. Schechter,3,‡ M. A. Tórtola,4,§ J. W. F. Valle,5,‖ and C. Weinheimer6,¶ 1Department of Physics, 2700 Bay Area Boulevard, University of Houston Clear Lake, Houston, Texas 77058, USA 2Institute for Fundamental Theory, University of Florida, Gainesville, Florida, USA 3Department of Physics, Syracuse University, Syracuse, New York 13244-1130, USA 4Departamento de Fı́...
This paper describes the experimental studies of vertical dynamic stiffness of single piles subjected to small amplitude of vibrations with constant dynamic load. The test results were correlated with the static load test results that had been carried out on the same piles. The ratio of dynamic to static stiffness mainly falls between 1.2-1.4. The dynamic stiffness measurements were compared wi...
A small base isolation system using a new device that used friction force was developed. In this paper, dynamic characteristics of the system were investigated by an experiment using artificial seismic wave. The bearing combination of three cases, four spherical metal bearings, two spherical metal and two marble plate bearings, four marble plate bearings, was done in the experiment. The peak ac...
Patterns of antegrade and retrograde conduction and refractory periods were studied using His bundle electrogram recordings, incremental atrial and ventricular pacing and the extrastimulus technique. In 36/50 patients antegrade conduction was "better" than retrograde conduction (group I), as evidenced by a) onset of retrograde atrioventricular (A-V) nodal Wenckebach phenomenon at a slower rate ...
THE CLINICAL SIGNIFICANCE of the repetitive ventricular response (RVR) has become an issue of considerable interest and controversy.'-6 Despite the interest and efforts of several investigators, definite conclusions about its significance are not possible. In fact, the clinical and electrophysiologic aspects of the RVR have been a source of confusion, particularly for those not well acquainted ...
Due to known difficulties of researchers in the networking domain regarding experimentation of their ideas in actual networks, network simulators have become indispensable tools for investigating and validating various ideas in all layers of the network. In this survey, we inspect the implementations of IEEE 802.11 PHY-MAC and propagation models of some of the well-known, open-source network si...
an analysis of philosophical content of iranian children's fictions s. iravani* k. mokhtari** tehran university the purpose of this study is to find basic philosophical concepts in children's literature through content analysis. the sample consists of 41 selected stories published by the institute for the intellectual development of children and young adults (kanoon parvares...
In this paper, first, we propose Star-NC, a new network coding (NC) scheme for multiple unicast sessions in an n-input n-output star structure. Then, we evaluate the network throughput of this coding scheme in wireless mesh network over the traditional non-NC transmission. Our scheme benefits from the proximity of all the nodes around the relay node and employs amore general form of overhearing...
PURPOSE Currently, we lack biomarkers to predict whether high-risk women with mammary atypia will respond to tamoxifen chemoprevention. EXPERIMENTAL DESIGN Thirty-four women with cytologic mammary atypia from the Duke University High-Risk clinic were offered tamoxifen chemoprevention. We tested whether ESR1 promoter hypermethylation and/or estrogen receptor (ER) protein expression by immunohi...
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