نتایج جستجو برای: middle coal

تعداد نتایج: 186550  

2016
Christopher Kim Wei Jie Seow Xiao-Ou Shu Bryan A. Bassig Nathaniel Rothman Bingshu E. Chen Yong-Bing Xiang H. Dean Hosgood Bu-Tian Ji Wei Hu Cuiju Wen Wong-Ho Chow Qiuyin Cai Gong Yang Yu-Tang Gao Wei Zheng Qing Lan

BACKGROUND Nearly 4.3 million deaths worldwide were attributable to exposure to household air pollution in 2012. However, household coal use remains widespread. OBJECTIVES We investigated the association of cooking coal and all-cause and cause-specific mortality in a prospective cohort of primarily never-smoking women in Shanghai, China. METHODS A cohort of 74,941 women were followed from 1...

Ultrasound can be used both simultaneously or as a pretreatment technique for flotation to produce higher combustible recoveries, higher heat values, and lower ash data from raw hard coals. The recent research works have indicated that modifying coal surfaces, especially physical surface cleaning with the help of the cavitation process created by power ultrasound at certain frequency and time i...

2011

The facility is located in Colorado Springs and consists of three BART-eligible dry-bottom, wallfired boilers (Units 5, 6, and 7). These boilers fire a variety of coal types, including coal from the southern Powder River Basin, ColoWyo coal (from northwestern Colorado), 20-Mile Foidel Creek coal (northwestern Colorado), and West Elk coal (western Colorado). Due to equipment limitations, these b...

2002
Makarand Joshi

Many thermal power plants use coal as their fuel. To handle the coal, each power station is equipped with a coal handling plant. The coal has to be sized, processed, and handled which should be done effectively and efficiently. While working in the coal handling plant the major factor which reduces staff efficiency is the working environment i.e. a dusty atmosphere. Lots of care is always taken...

Journal: :Data Science Journal 2007
Yi Hu Peisheng Li Niansu Hu Song Hu Shentang Dou Guolu Yang

The research results of coal characterization using the XPS method are summarized. Microsoft Visual Studio.net is utilized to build a database functional group characterization for coal, which contains over 1000 records including the kind of functional group, binding energy value, coal specie, producing area, sample preparation, and literature information. The database can be used to search and...

2014
Kenneth G. Frey Cassie L. Redden Kimberly A. Bishop-Lilly Reed Johnson Lisa E. Hensley Kanakatte Raviprakash Thomas Luke Tad Kochel Vishwesh P. Mokashi Gabriel N. Defang

Middle East respiratory syndrome coronavirus (MERS-CoV) is the etiologic agent of a highly lethal pneumonia. Here, we report the full-genome sequence of the Jordan-N3/2012 strain after serial passage in two distinct mammalian cell lines. The genome exhibits noteworthy stability, which may inform the development of vaccines and therapeutics used to treat infection with this virus.

Farahnaz Eghbali Mohammad Reza Ehsani,

Sulfur emission from coal combustion presents many environmental problems. The techniques used to reduce the amount of sulfur in coal before combustion, include physical, chemical and biological processes.Biological processes based on degradation of sulfur compounds by microorganisms offer many advantages over the conventional physical and chemical processes. The processes are performed und...

Journal: :Frontiers in Earth Science 2022

Coal dust pollution in fully mechanized excavation faces not only affects the safety production of coal mine but also threatens health workers. In order to reduce and improve work conditions mines, layout dedusting-air duct dry collector influence position on dust-producing area were studied. addition, effects different cutting positions removal efficiency A full-scale model roadway is establis...

2016
Bing Han Hongbo Liu Guojiang Zhai Qun Wang Jie Liang Mengcang Zhang Kai Cui Fuhai Shen Hongbo Yi Yuting Li Yuhan Zhai Yang Sheng Jie Chen Nancy Lan Guo

This research was aimed at estimating possible Coal workers' pneumoconiosis (CWP) cases as of 2012, and predicting future CWP cases among redeployed coal workers from the Fuxin Mining Industry Group. This study provided the scientific basis for regulations on CWP screening and diagnosis and labor insurance policies for redeployed coal workers of resource-exhausted mines. The study cohort includ...

Journal: :international journal of energy and environmental engineering 2011
andrzej zibik marcin liszka

the present paper deals with the results of the foresight analysis concerning the development of energy technologies in upper silesia. twelve experts representing science, industry and independent authoritieswere involved in these investigations. upper silesia is a specific region in poland, characterized by coal energy technologies. as 9 result of steep and swot analyses several scenarios of e...

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