نتایج جستجو برای: hill and valley regions
تعداد نتایج: 16856138 فیلتر نتایج به سال:
During the last few years, the concern about the protection of the environment has largely increased due to the contaminants mainly with anthropogenic origin and have affected and continue to threaten human resources especially air quality, surface soil and groundwater. Solid wastes are produced every day in urban societies as a result of human activities and in an attempt to dispose of these m...
در پایان نامه حاضر، به آنالیز سدهای خاکی به روش باریکه های برشی پرداخته شده است . در فصل اول روشهای مختلف بررسی پایداری سدهای خاکی در برابر زلزله مورد بحث قرار گرفته و اهمیت آنالیز دینامیکی در مقایسه با آنالیز شبه استاتیکی آشکار گردیده است و در ادامه به اختصار، به روشهای مختلف آنالیز دینامیکی پرداخته شده است . سپس در فصل دوم تئوری باریکه های برشی به تفصیل مورد بحث قرار گرفته و با توجه به مراجع ...
By comparing the network structure of venture capital (VC) firms in Silicon Valley (California) to that of VC firms in Route 128 (Massachusetts), the present study challenges any market-centred theory of regional development. I show that there are advantages in examining the structure of social networks of cooperation within the venture capital industry to understand the level of development of...
abstract: the potato tuberworm, phthorimaea operculella (zeller), is an important insect pest of potato (solanum tuberosum l.) in the storage and field in most parts of the world especially in tropical and subtropical regions due to its close relationship with the host, high reproductive potential and high economic losses. information on host preference, life table parameters and digestive en...
We examine energy spectra of Si quantum dots embedded in Si0.75Ge0.25 buffers using atomistic numerical calculations for dimensions relevant to qubit implementations. The valley degeneracy of the lowest orbital state is lifted and valley splitting fluctuates with monolayer frequency as a function of the dot thickness. For dot thicknesses 6 nm, valley splitting is found to be 150 eV. Using the u...
a r t i c l e i n f o Shimla is one of the 80 hill stations which were established on preferred locations during British rule in India. It is the summer capital of pre-independent India, planned and developed for a maximum population of 25,000 in a picturesque hill setting. Presently, Shimla is capital of the state of Himachal Pradesh, one of the most preferred tourist destinations in the count...
The complete genome sequence, including the untranslated regions, of two Rift Valley fever virus (RVFV) strains isolated from mosquitoes that were collected from disease outbreaks in Saudi Arabia (2001) and Kenya (2006 to 2007) were sequenced using next-generation sequencing technology.
What are the respective roles of indigenous and exogenous factors in the development of high-tech regions? Entrepreneurs and their start-ups have dominated Silicon Valley’s economy in recent decades, but a different dynamic was at work from 1940 to 1965, when the Valley emerged as a formidable high-tech region. In key industries (electronics, semiconductors, computers, and aerospace) that defin...
in this paper, an advanced formulation of the spectral finite element method (sfem) is presented and applied in order to carry out site response analysis of 2d topographic structures subjected to vertically propagating incident in-plane waves in time-domain. the accuracy, efficiency and applicability of the formulation are demonstrated by solving some wave scattering examples. a numerical param...
The success of Silicon Valley and the information economy in Ireland suggest that rural regions have the potential for e-business development. However, the successes of these two cases were not the result of technology alone. In this study, the researchers explored societal issues in the form of relevant policies and regional culture in San Joaquin Valley to investigate their influence on e-bus...
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