نتایج جستجو برای: s waves

تعداد نتایج: 815483  

A. A. Papahn A. R. Rasekh R. Avizeh, R. Molaee R. Ranjbar

Evaluation of the cardiovascular system of canine pediatrics requires awareness of the anatomical and physiological changes occurring from birth to six months of age. The aim of this study was to report electrocardiographic changes in the littermate mongrel dogs from birth tosix months. Serial six-lead electrocardiograms were recorded from ten normal littermate mongrel dogs kept on right latera...

Bulk carriers have an important role in international maritime transport. In this paper, we carried out a numerical study on a model of bulk carrier vessel and calculated total resistance of the model. A model of a bulk carrier vessel with length of 2.76 m, breadth of 0.403 m and draught of 0.173 m was selected for numerical modeling. Numerical work was done by commercial CFD software ANSY...

2014
W. Gao M. Jenkins

Estimating penetrometer resistance and matric potential from the velocities of shear and compression waves Journal Article How to cite: Gao, W.; Watts, W. R.; Ren, T.; Shin, H.; Taherzadeh, S.; Attenborough, K.; Jenkins, M. and Whalley, W. R. (2013). Estimating penetrometer resistance and matric potential from the velocities of shear and compression waves. Soil Science Society of America Journa...

2008
Clive E. Davies Stephen J. Tallon Emile Webster

Techniques for the use of audio-frequency sound waves in the measurement of flow rate and particle size and the estimation of the volume of material contained in partially closed vessels are described and discussed. INTRODUCTION Non-invasive interrogation of systems and processes involving dry particulate materials is particularly challenging. X-rays and γ-rays, for example, offer the prospect ...

2010
Zhiwu Lin

Consider 1D Vlasov-poisson system with a …xed ion background and periodic condition on the space variable. First, we show that for general homogeneous equilibria, within any small neighborhood in the Sobolev space W s;p p > 1; s < 1 + 1 p of the steady distribution function, there exist nontrivial travelling wave solutions (BGK waves) with arbitrary minimal period and traveling speed. This impl...

Elham Ahmadi, Fereydoon Laal, Mahdi Mohammadi, Nasimeh Jamil, Roya Arbabi,

Abstract Introduction: With ever improving technology and increasing the use of high voltage power in industrial environments, concerns about the destructive effects of electromagnetic waves on human health have increased. Thus the present study aims to evaluate the effects of electromagnetic waves on the general health of Zahedan gas power plant personnel. Materials & Method: The present...

2005
Emily E. Brodsky Stephanie G. Prejean

[1] Regional-scale triggering of local earthquakes in the crust by seismic waves from distant main shocks has now been robustly documented for over a decade. Some of the most thoroughly recorded examples of repeated triggering of a single site from multiple, large earthquakes are measured in geothermal fields of the western United States like Long Valley Caldera. As one of the few natural cases...

Journal: :natural environment change 0
mohsen abbasnia ph.d candidate of climatology, department of physical geography and environmental planning, university of sistan and baluchestan, zahedan, iran taghi tavousi professor of climatology, department of physical geography and environmental planning, university of sistan and baluchestan, zahedan 987-98135, iran. mahmood khosravi associated professor of climatology, department of physical geography and environmental planning, university of sistan and baluchestan, zahedan 987-98135, iran. huseyin toros associated professor of meteorology, department of meteorology engineering, istanbul technical university, maslak istanbul 34469, turkey.

the purpose of this research is to analyze heat waves characteristics in the warm period of the year as a climatic hazard in iran. in this study, the daily maximum temperature is taken at 44 synoptic stations during the period 1981-2010. these temperature values were used to extract the intensity, frequency and duration of heat waves using percentile thresholds of 90, 95, and 98. the results sh...

2015
J. Gaiser R. Van Dok

An important application of 3-D converted P to S-waves (PS-waves) is to exploit S-wave birefringence (splitting) for delineating reservoir fractures. In azimuthally anisotropic media, fracture intensities and orientations are directly related to traveltime differences between the fast and slow S-wave and the polarization direction of the fast S-wave, respectively. Analysis techniques to help ch...

Journal: :پژوهش فیزیک ایران 0
بیژن شیخ الاسلامی سبزواری b. s. sabzevari

a complete linear theory in four dimensional space-time is constructed for propagation and coupling of electromagnetic waves in the most general case, i.e. media where all three space directions are in homogeneous and where temporal changes, anisotropy and absorbtion are also included. the only condition is that the properties of the medium should be slowly varying, although it is assumed that ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید