نتایج جستجو برای: climatic condition

تعداد نتایج: 345265  

Journal: :International Journal of Enviornment and Climate Change 2023

The present field experiment was carried out during 2021-2022 at the Vegetable Research Farm, Department of Horticulture, Sam Higginbottom University Agriculture Technology and Sciences, Prayagraj. laid in Randomized Block Design with three replications nine treatments. investigation a view to study effect different mulching material on growth, yield quality watermelon. results revealed that pl...

2016
Runsheng Tang I. A. Meir Tong Wu

Vaulted or domed roofs have been frequently adopted by builders and architects throughout the Middle East and other hot dry areas. However, the thermal performance of such buildings under hot dry climatic conditions has rarely been quantitatively studied. In this paper, a detailed finite element model for the investigation of the thermal performance of non air-conditioned buildings with vaulted...

2000
Wei Luo

Recent computer models of landform evolution have focused on surface processes of river networks and hillslopes (e.g., Ahnert, 1976; Kirkby, 1986; Willgoose et al., 1991a, b; Koltermann and Gorelick, 1992; Howard, 1994; Howard et al., 1994; Smith et al., 1997). Most of these models are based on complicated differential equations that are difficult to solve. Chase (1992) developed a cellular aut...

Journal: :Journal of evolutionary biology 2005
F B Cruz L A Fitzgerald R E Espinoza J A Schulte

We tested for the occurrence of Bergmann's rule, the pattern of increasing body size with latitude, and Rapoport's rule, the positive relationship between geographical range size and latitude, in 34 lineages of Liolaemus lizards that occupy arid regions of the Andean foothills. We tested the climatic-variability hypothesis (CVH) by examining the relationship between thermal tolerance breadth an...

2015
Richard S. Ostfeld Jesse L. Brunner

The evidence that climate warming is changing the distribution of Ixodes ticks and the pathogens they transmit is reviewed and evaluated. The primary approaches are either phenomenological, which typically assume that climate alone limits current and future distributions, or mechanistic, asking which tick-demographic parameters are affected by specific abiotic conditions. Both approaches have p...

Journal: :Trends in ecology & evolution 2005
Michael D Crisp Lyn G Cook

A reverence for ancestors that has pre-occupied humans since time immemorial persists to the present. Reconstructing ancestry is the focus of many biological studies but failure to distinguish between present-day descendants and long-dead ancestors has led to incorrect interpretation of phylogenetic trees. This has resulted in erroneous reconstruction of traits such as morphology and ancestral ...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2005
Richard A Betts

This paper discusses the need for a more integrated approach to modelling changes in climate and crops, and some of the challenges posed by this. While changes in atmospheric composition are expected to exert an increasing radiative forcing of climate change leading to further warming of global mean temperatures and shifts in precipitation patterns, these are not the only climatic processes whi...

Journal: :محیط شناسی 0
محمود مولی نژاد استادیار سازمان پژوهش های علمی و صنعتی ایران (irost) و رئیس مرکز منطقه ای علوم و انتقال فناوری (iora rcstt)

introduction climate affects, more than any other factors, the type and form of human life, so that many cities that have made or developed regardless of climatic information are suffering from weather-related problems such as air pollution, water supply and flooding etc. by using the meteorological information in designing new cities as well as developing old cities can reduce the mentioned pr...

Journal: :international journal of advanced biological and biomedical research 2014
saryh zare'ian reza kakvan mohammadreza hefzi hussein azadeh

undoubtly it can be said that climate and how weather conditions effect on building shape including limited architecture elements which has been noticed at the beginning of making shelter by human beings and the principle of this need has not been changed by passing time and changing the styles and movements and definitions of art and beauty and changing needs and attitudes and expanding archit...

خداقلی, مرتضی , سلطانی کوپایی, سعید , یغمایی, لیلا ,

In order to determine the effect of climatic factors on distribution of Artemisia aucheri and Artemisia sieberi in Isfahan province, thirty nine most important climatic elements in ecological condition of these species were selected. Using a factor analysis method, the most important factors in distribution of these species were determined. These factors which cover 92.3% of the total variance ...

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