نتایج جستجو برای: heat waves

تعداد نتایج: 311977  

2012
Alexander Gershunov Kristen Guirguis

Current and projected heat waves are examined over California and its sub-regions in observations and downscaled global climate model (GCM) simulations. California heat wave activity falls into two distinct types: (1) typically dry daytime heat waves and (2) humid nighttime-accentuated events (Type I and Type II, respectively). The four GCMs considered project Type II heat waves to intensify mo...

2011
Roger D. Peng Jennifer F. Bobb Claudia Tebaldi Larry McDaniel Michelle L. Bell Francesca Dominici

BACKGROUND Climate change is anticipated to affect human health by changing the distribution of known risk factors. Heat waves have had debilitating effects on human mortality, and global climate models predict an increase in the frequency and severity of heat waves. The extent to which climate change will harm human health through changes in the distribution of heat waves and the sources of un...

P Sharma R Kumar,

In this paper the propagation of harmonic plane waves in a homogeneous anisotropic magneto-piezothermoelastic diffusive body with fractional order derivative is studied. The governing equations for a homogeneous transversely isotropic body in the context of the theory of thermoelasticity with diffusion given by Sherief et al. [1] are considered as a special case. It is found that three types of...

2017
Aleš Urban Hana Hanzlíková Jan Kyselý Eva Plavcová

This study aimed to assess the impacts of heat waves during the summer of 2015 on mortality in the Czech Republic and to compare them with those of heat waves back to the previous record-breaking summer of 1994. We analyzed daily natural-cause mortality across the country's entire population. A mortality baseline was determined using generalized additive models adjusted for long-term trends, se...

2014
Xiakun Zhang Jing Lu Shuyu Zhang Chunling Wang Baojian Wang Pinwen Guo Lina Dong

The mechanism of the effects of simulated heat waves on cardiovascular disease in senile mice was investigated. Heat waves were simulated in a TEM1880 meteorological environment simulation chamber, according to a heat wave that occurred in July 2001 in Nanjing, China. Eighteen senile mice were divided into control, heat wave, and heat wave BH4 groups, respectively. Mice in the heat wave and hea...

In this research, a comparison of biodiesel produced by ultrasound and heat methods was investigated. Methanol was used as the alcohol with molarity 3, 6 and 9 and KOH 0.5, 1 and 1.5 wt.% As a catalyst. In ultrasound technique, five vibrating pulse levels and three time levels were used. The results indicate that biodiesel produced by ultrasound in some properties includes a flash point of abou...

Journal: :Environmental pollution 2011
Katharina M A Gabriel Wilfried R Endlicher

In large cities such as Berlin, human mortality rates increase during intense heat waves. Analysis of relevant data from north-eastern Germany revealed that, during the heat waves that occurred between 1990 and 2006, health risks were higher for older people in both rural and urban areas, but that, during the two main heat waves within that 17-year period of time, the highest mortality rates we...

2013
Thomas P. Albright Anna M. Pidgeon Chadwick D. Rittenhouse Murray K. Clayton Curtis H. Flather Patrick D. Culbert Volker C. Radeloff

Heat waves measured with MODIS land surface temperature data predict changes in avian community structure" a b s t r a c t a r t i c l e i n f o Keywords: Abundance Biodiversity Birds Climate change Heat waves Land surface temperature Mixed effects models MODIS North American Breeding Bird Survey PRISM Species richness United States Heat waves are expected to become more frequent and severe as ...

2004
Janina Marciak-Kozlowska Miroslaw Kozlowski

In this paper the heat waves, induced by ultra-short laser pulses are considered. The hyperbolic heat transport in n-dimensional spacetime is formulated and solved. It is shown that only for n−odd for heat waves the Huygens principle is fulfilled. The heat transport experiment for Cu3Au alloy is considered.

2013
Derick A. Akompab Peng Bi Susan Williams Janet Grant Iain A. Walker Martha Augoustinos

Heat waves are considered a health risk and they are likely to increase in frequency, intensity and duration as a consequence of climate change. The effects of heat waves on human health could be reduced if individuals recognise the risks and adopt healthy behaviours during a heat wave. The purpose of this study was to determine the predictors of risk perception using a heat wave scenario and i...

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