نتایج جستجو برای: besides degradations caused by population pressure

تعداد نتایج: 7605813  

2012
Amit Kumar Jain

Amit Kumar Jain Abstract— Presently the world has enormous advancement in science and technology the topic considered here is just a drop out of an ocean of knowledge. Higher product quality, better reliability, better availability of plants, optimization of cost and efficient working of boilers is the chief concern now a days. Generally the production can be increased by the efficient use of b...

1997
Reed Stevens Rogers Hall

This article reports an exploratory study of how people see and explain a prominent exhibit (Tornado) at an interactive science museum (the Exploratorium). Our data was assembled using a novel, technically mediated activity system (Video Traces) that allowed visitors to reflect with an interviewer on video records of their own visits to the exhibit. We present qualitative data comparing initial...

2016
Zhi-Dong Liu Jing Li Ying Zhang Guo-Yong Ding Xin Xu Lu Gao Xue-Na Liu Qi-Yong Liu Bao-Fa Jiang

Understanding the potential links between floods and bacillary dysentery in China is important to develop appropriate intervention programs after floods. This study aimed to explore the distributed lag effects of floods on bacillary dysentery and to identify the vulnerable groups in Huaihua, China. Weekly number of bacillary dysentery cases from 2005-2011 were obtained during flood season. Floo...

2015
Zhen Song Håkan Schunnesson Mikael Rinne John Sturgul Zhonghao Rao

Many studies have been carried out and many commercial software applications have been developed to improve the performances of surface mining operations, especially for the loader-trucks cycle of surface mining. However, there have been quite few studies aiming to improve the mining process of underground mines. In underground mines, mobile mining equipment is mostly scheduled instinctively, w...

Journal: :Emerging Infectious Diseases 2008
Begoña Monge Maillo Rogelio López-Vélez Francesca Norman Fernando de Ory María Paz Sanchez-Seco Cesare Giovanni Fedele

In addition, the viral load in this study appeared to be comparatively high. These results suggest that some sapovirus genotypes are more virulent than others. Similar fi ndings were obtained with norovirus infections around the world; strains belonging to norovirus GII/4 were the most prevalent in many countries. Although several recombinant sapovirus strains have been identifi ed and found to...

2013
Robert L. McGavin Henri Bailleres Fred Lane David Blackburn Mario Vega Barbara Ozarska

The Australian hardwood plantation industry is challenged to identify profitable markets for the sale of its wood fibre. The majority of the hardwood plantations already established in Australia have been managed for the production of pulpwood; however, interest exists to identify more profitable and value-added markets. As a consequence of a predominately pulpwood-focused management regime, th...

Journal: :Dental materials journal 2010
Toshiko Ozawa Masako Nakano Takashi Arai

The anti-suck-back ability of five new high-speed air turbine handpiece models was evaluated in this study. First, suck-back pressure with water displacement within a glass tube was measured. Next, under three different conditions, how many on-off times it takes before fluorescent stains became visible on a piece of gauze at the exhaust vent was counted and the presence of fluorescent stains on...

2011
S. Sheng P. Veers

Wind energy is presently the fastest growing renewable energy source in the world. However, the industry still experiences premature turbine component failures, which lead to increased operation and maintenance (O&M) costs and subsequently, increased cost of energy (COE). To make wind power more competitive, it is necessary to reduce turbine downtime and increase reliability. Condition monitori...

Journal: :J. Global Optimization 1997
Dominikus Noll

Images recorded in electronic or photographic media are often degraded due to system imperfections such as diffraction effects, optical system aberrations, camera and/or object motions, defocussing, or atmospheric turbulences. In addition to these blurring effects, the recorded image is usually corrupted by various random noise effects such as the randomness of the film grain, photoelectric eff...

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