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Characteristics of carbonate gas pool and multistage gas pool formation history of Hetianhe gas field, Tarim Basin, Northwest China
Science China Press., Co. Ltd. - Tập 47 - Trang 146-152 - 2002
Xinyuan Zhou, Chengzao Jia, Zhaoming Wang, Qinghua Wang, Wei Yang
Hetianhe is a big carbonate gas field which is found and demonstrated in the period of “Chinese National Ninth 5-Year Plan”. The proved reserve of Hetianhe gas field is over 600×108 m3. Its main producing layers are Carboniferous bioclastic limestone and Ordovician carbonate composed of buried hill. The former is stratified gas pool with water around its side, and the latter is massive gas pool wi...... hiện toàn bộ
Effects of coagulation on submerged ultrafiltration membrane fouling caused by particles and natural organic matter (NOM)
Science China Press., Co. Ltd. - Tập 56 - Trang 584-590 - 2011
YongHong Li, Jun Wang, Wei Zhang, XiaoJian Zhang, Chao Chen
Natural organic matter (NOM) and particles in source water are responsible for the majority of ultrafiltration (UF) membrane fouling that occurs during drinking water treatment. This study was conducted to (1) understand the UF membrane fouling phenomena caused by NOM and turbidity-causing particles and (2) investigate the effect of coagulation pretreatment on the alleviation of membrane fouling. ...... hiện toàn bộ
Indoor environmental quality and the prevalence of childhood asthma and rhinitis in Wuhan area of China
Science China Press., Co. Ltd. - Tập 58 - Trang 4223-4229 - 2013
Ming Zhang, ESheng Zhou, Xin Ye, YueXia Sun, Jan Sundell, Xu Yang
Indoor environmental quality is suspected to be at least part of the cause of the increasing prevalence of childhood asthma and allergy. This study is part of the China, Children, Homes, Health (CCHH) project, which was designed to identify the risk factors indoors that are associated with prevalence of asthma and allergy among children in China. A cross-sectional questionnaire study was carried o...... hiện toàn bộ
Ortho-hydroxy assisted and copper-catalyzed oxidation of benzylic alcohol
Science China Press., Co. Ltd. - Tập 55 - Trang 2817-2819 - 2010
ChangFeng Wan, JinMin Fan, JinTang Zhang, ZhiYong Wang
An efficient and simple protocol for the synthesis of o-hydroxyarylketones has been developed. The reaction proceeds smoothly with catalytic amounts of copper catalyst under air atmosphere without ligands. This study indicates that the o-hydroxy plays an important role in the oxidation of alcohol to the corresponding carbonyl compounds.
Role of Ppt1 in multiple stress responses in Candida albicans
Science China Press., Co. Ltd. - Tập 59 - Trang 4060-4068 - 2014
Kangdi Hu, Wanjie Li, Jiaxin Gao, Qizheng Liu, Haitao Wang, Yue Wang, Jianli Sang
To study the function of CaPpt1, we deleted PPT1 gene from the Candida albicans genome by sequentially replacing the entire coding region with the selectable markers ARG4 and HIS1. The results showed that the deletion of Ppt1 did not affect the hyphal formation of C. albicans under serum induction and caused enhanced sensitivity to DNA damage, Calcofluor white and salt-induced stress. We also foun...... hiện toàn bộ
Synthesis and properties of water-soluble oligo-(p-phenylkene vinylene)
Science China Press., Co. Ltd. - Tập 48 - Trang 2168-2170 - 2003
Jun Tang, Xiaoqiang Yu, Weiran Lin, Jingzhi Sun, Bai Yang
A water-soluble oligo(p-phenylkene vinylene) [4,4′-(1,4-phenylene dithenylene)-bis-(N-methyl pyridinium iodide)] was synthesized by Witting reaction. The oligomer was characterized by NMR, elemental analysis, UV-visible spectrum, surface photovoltage spectrum and fluorescence spectrum.
Morphology and mechanical properties of Cybister elytra
Science China Press., Co. Ltd. - Tập 55 Số 8 - Trang 771-776 - 2010
Zhixian Yang, Dai Zhang, Chunhuan Guo
Prokaryotic expression localization and function of the infectious laryngotracheitis virus glycoprotein G
Science China Press., Co. Ltd. - Tập 50 - Trang 2033-2038 - 2013
Zhaogang Sun, Manfu Zhang
The infectious laryngotracheitis virus (ILTV) glycoprotein G (gG) gene of E3 and Zhonghai strains was cloned, sequenced and compared with the gG gene of other Type I animal herpesviruses. To find the localization and the function of the gG in the infected cells, the 35 kD fusion protein (His-GG) was expressed by inserting the coding region of gG except for the signal peptide into pET30a (+). After...... hiện toàn bộ
Age and genesis of the Shagou River terraces in eastern Qilian Mountains
Science China Press., Co. Ltd. - Tập 46 - Trang 509-513 - 2001
Baotian Pan, Guangjian Wu, Yixiang Wang, Zhigang Liu, Qingyu Guan
The fluvial terrace sequence in eastern Qilian Mountains is a record of periodic uplift events of the Tibetan Plateau. Based on paleomagnetic dating, thermoluminescence dating, radio carbon dating and loess-paleosol sequence on terraces, we preliminarily determine the ages of five major terraces of the Shagou River, northern side of the Qilian Mountains. The ages of five terraces were about 830, 4...... hiện toàn bộ
Mantle plumes: Why the current skepticism
Science China Press., Co. Ltd. - Tập 50 - Trang 1555-1560 - 2013
Gillian R. Foulger
The present reappraisal of the mantle plume hypothesis is perhaps the most exciting current debate in Earth science. Nevertheless, the fundamental reasons for why it has arisen are often not well understood. They are that 1) many observations do not agree with the predictions of the original model, 2) it is possible that convection of the sort required to generate thermal plumes in the Earth’s man...... hiện toàn bộ
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