نتایج جستجو برای: climatic chamber

تعداد نتایج: 73067  

Journal: :Applied sciences 2021

This manuscript aims to create large-scale calculations of agro-climatic factors from global climatic data with high granularity-climatic ERA5-Land dataset the Copernicus Climate Change Service in particular. First, we analyze existing approaches used for factor calculation and formulate a frame our calculations. Then describe design methods visualization certain factors. We then run two case s...

2015
Carlos Carroll Joshua J. Lawler David R. Roberts Andreas Hamann Maura (Gee) Geraldine Chapman

Metrics that synthesize the complex effects of climate change are essential tools for mapping future threats to biodiversity and predicting which species are likely to adapt in place to new climatic conditions, disperse and establish in areas with newly suitable climate, or face the prospect of extirpation. The most commonly used of such metrics is the velocity of climate change, which estimate...

ژورنال: طلوع بهداشت یزد 2013
امینی پور, محمد رضا, برخورداری, ابوالفضل , بهجتی اردکانی, مهدی, حلوانی, غلامحسین , حکم آبادی, رجبعلی, فلاح , حسین , مرتضوی, مرتضی,

  Background: The need for high-quality education and setting principles and practices for enhancing educational policy and practice using modern techniques is self-evident. The entrance of students into the factories is sometimes limited, and of particular concern is that students likely face danger by their presence at the workplace. A review of the related literature revealed no research inv...

2016
Laure Gallien Wilfried Thuiller Noémie Fort Marti Boleda Florian J. Alberto Delphine Rioux Juliette Lainé Sébastien Lavergne

Climatic niche shifts have been documented in a number of invasive species by comparing the native and adventive climatic ranges in which they occur. However, these shifts likely represent changes in the realized climatic niches of invasive species, and may not necessarily be driven by genetic changes in climatic affinities. Until now the role of rapid niche evolution in the spread of invasive ...

2013
Raimundo Real David Romero Jesús Olivero Alba Estrada Ana L. Márquez

Climate is one of the main drivers of species distribution. However, as different environmental factors tend to co-vary, the effect of climate cannot be taken at face value, as it may be either inflated or obscured by other correlated factors. We used the favourability models of four species (Alytes dickhilleni, Vipera latasti, Aquila fasciata and Capra pyrenaica) inhabiting Spanish mountains a...

B. Amanat, M. Taheri, M.R. Kardan, R. Faghihi ,

Background: Separate radon and thoron measurements in soil are very important in assessment of internal exposure due to inhalation of such radioactive gases. Materials and Methods: In this study, a low cost, small size, passive diffusion chamber has been developed for simple measurement of Radon-222 and Radon-220(Thoron) gases separately in soil. The diffusion chamber consists of two films and ...

Journal: :معماری و شهرسازی 0
عیسی حجت استاد دانشکده معماری، پردیس هنرهای زیبا، دانشگاه تهران سعید گلستانی دانشجوی دکتری معماری، دانشگاه هنر اصفهان مهدی سعدوندی استادیاردانشکده معماری، دانشگاه هنر اصفهان

there are some evidences on elamite seals that show iranian people had enough knowledge to construct small dome on cylindrical spaces like silo in the third millennium bc. but the foundations of large dome over square spaces were formed in the parthian period. bazeh-hur dome chamber with the corners of wood in khorasan province is the most ancient dome from the sasanian dynasty. since the sasan...

Journal: :Swiss medical weekly 2002
Martin Beniston

This paper addresses a number of problems relating to climatic change and human health. Following an introduction outlining the overarching issues, a short summary is given on climatic change and its anthropogenic causes. The rest of the paper then focuses on the direct and indirect impacts of global climatic change on health. Direct effects comprise changes in the hygrothermal stress response ...

Journal: :Molecular ecology 2010
Javier A Rodríguez-Robles Tereza Jezkova Manuel Leal

Two factors that can lead to geographic structuring in conspecific populations are barriers to dispersal and climatic stability. Populations that occur in different physiographic regions may be restricted to those areas by physical and/or ecological barriers, which may facilitate the formation of phylogeographic clades. Long-term climatic stability can also promote genetic diversification, beca...

Journal: :The Journal of animal ecology 2016
Christopher R Cooney Nathalie Seddon Joseph A Tobias

The adaptability of species' climatic niches can influence the dynamics of colonization and gene flow across climatic gradients, potentially increasing the likelihood of speciation or reducing extinction in the face of environmental change. However, previous comparative studies have tested these ideas using geographically, taxonomically and ecologically restricted samples, yielding mixed result...

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