نتایج جستجو برای: field site

تعداد نتایج: 1119081  

جلالی, سید غلامعلی, حسینی, سید محسن, حسینی, وحید, قاسمی آقباش, فرهاد,

  The decomposition of leaf litter has important in the ecosystem level through regulating buildup of soil organic matter, regulating of nutrient for plant growth and influencing the flux of Co2 from the soil. Several studies have introduced Home-field advantage (HFA) as an index for indicating more rapidly decomposition process of litter in its own site. In the present study, beech and alder s...

Journal: :فیزیک زمین و فضا 0
azadeh hojat assistant professor, department of mining engineering, faculty of engineering, shahid bahonar university of kerman, kerman, iran cathrine fox maule danish climate centre, danish meteorological institute, denmark kumar hemant singh department of earth sciences, indian institute of technology, bombay, india

in this paper an indirect method is presented to detect potential geothermal sites in kerman province, southeast iran. geothermal heat flux is one of the main parameters to be investigated in geothermal exploration programs. however, few direct heat flux measurements are available for iran. given the proved relation between curie depths and heat flux, magnetic data can be used to calculate the ...

2008
Hongchen Fu Allan I Solomon Xiaoguang Wang

For a 3-qubit Heisenberg model in a uniform magnetic field, the pairwise thermal entanglement of any two sites is identical due to the exchange symmetry of sites. In this paper we consider the effect of a non-uniform magnetic field on the Heisenberg model, modeling a magnetic impurity on one site. Since pairwise entanglement is calculated by tracing out one of the three sites, the entanglement ...

2014
Artiom Fiodorov Stephen Muirhead

We consider the parabolic Anderson model with Weibull potential field, for all values of the Weibull parameter. We prove that the solution is eventually localised at a single site with overwhelming probability (complete localisation) and, moreover, that the solution has exponential shape around the localisation site. We determine the localisation site explicitly, and derive limit formulae for i...

Journal: :Applied and environmental microbiology 2001
S S Hirano D K Willis M K Clayton C D Upper

To construct differentially-marked derivatives of our model wild-type strain, Pseudomonas syringae pv. syringae B728a (a causal agent of bacterial brown spot disease in snap bean plants), for field experiments, we selected a site in the gacS-cysM intergenic region for site-directed insertion of antibiotic resistance marker cassettes. In each of three field experiments, population sizes of the s...

Milad Homafar Mohammad Reza Pourjafar,

This research aims to identify the economic logic in the process of locating and the spatial transmitting of the knowledge-based institutions in Iran while on the macro and micro levels, it seeks to find an optimal location for the knowledge-based activities in Tehran. The research method is mixed and statistical population of this research includes a number of 879 knowledge-based companies whi...

A. Maddah Safaei, E. Akbari Hamed, Ebrahim Esmati, F. Farhan, M.S. Mirai Ashtiani, Sh. Shahriarian,

Background:  After breast conserving surgery, most recurrences occur around the primary tumor site. This justifies the use of boost radiotherapy to the primary site of tumor. Surgical scar is not always a good surrogate for the location of the lumpectomy cavity. The aim of this study was to evaluate ultrasonic guidance for detection of the lumpectomy cavity after breast conserving surgery ...

The massive construction in poor lands has encouraged engineers to use deep foundations in order to transfer superstructure loads to the subsoil. Since soil excavation, sampling, and laboratory testing as a part of site investigation are relatively difficult, in-situ tests such as cone penetration test (CPT) as a very informative test may be recommended. The CPT has been widely used in engineer...

Journal: :فیزیک زمین و فضا 0
مهرداد فتوحی مهر دانشجوی دکتری ژئوفیزیک، مؤسسه ژئوفیزیک دانشگاه تهران، ایران الهام شعبانی استادیار، گروه فیزیک زمین، مؤسسه ژئوفیزیک دانشگاه تهران، ایران نوربخش میرزائی دانشیار، گروه فیزیک زمین، مؤسسه ژئوفیزیک دانشگاه تهران، ایران ابراهیم حق شناس استادیار، پژوهشگاه بین المللی زلز له شناسی و مهندسی زلزله، تهران، ایران

by growing the population and need for settlement, many cities have been built on soft sediments and seismic areas. it emphasizes the need for a careful and reliable assessment of site effect phenomena. beyond the methods of studying site effects, microtremor recordings has become popular over the last decades as it offers a convenient, practical and low cost tool to be used in urbanized areas....

Journal: :journal of tethys 0

today, saving and storing water are among the most critical and important issues which have attracted the world's attention. history of storing water in the form of ghanat and water reservoir by iranians goes back to ancient times. studies on this field show that benefiting from underground dams was one of the methods employed for exploiting water in past times. in countries like iran, due...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید