Results 31 to 40 of about 5,207,446 (200)

Imitating the effects of drilling fluid invasion on the strength behaviors of hydrate-bearing sediments: An experimental study

Frontiers in Earth Science, 2022
The drilling fluid invasion into hydrate-bearing sediments will change the geomechanical properties of the reservoir and may lead to uncontrolled geological disasters in the worst case.
Jun Pei, Jun Pei, Na Wei, Na Wei, Boning Zhang, Jinzhou Zhao, Jinzhou Zhao, Bjørn Kvamme, Richard B. Coffin, Haitao Li, Haitao Li, Haitao Li, Ruiling Bai, Ruiling Bai   +13 more
doaj   +1 more source

Anaerobic gut fungi are an untapped reservoir of natural products

Proceedings of the National Academy of Sciences of the United States of America, 2021
Significance Anaerobic gut fungi are important members of the gut microbiome of herbivores, yet they exist in small numbers relative to bacteria. Here, we show that these early-branching fungi produce a wealth of secondary metabolites (natural products ...
Candice L. Swift, Katherine B. Louie, B. Bowen, H. Olson, S. Purvine, A. Salamov, S. Mondo, Kevin V. Solomon, A. Wright, T. Northen, I. Grigoriev, N. Keller, M. O’Malley   +12 more
semanticscholar   +1 more source

Bats Are Natural Reservoirs of SARS-Like Coronaviruses [PDF]

Science, 2005
Severe acute respiratory syndrome (SARS) emerged in 2002 to 2003 in southern China. The origin of its etiological agent, the SARS coronavirus (SARS-CoV), remains elusive. Here we report that species of bats are a natural host of coronaviruses closely related to those responsible for the SARS outbreak.
Li, Wendong, Shi, Zhengli, Yu, Meng, Ren, Wuze, Smith, Craig, Epstein, Jonathan H., Wang, Hanzhong, Crameri, Gary, Hu, Zhihong, Zhang, Huajun, Zhang, Jianhong, McEachern, Jennifer A., Field, Hume, Daszak, Peter, Eaton, Bryan T., Zhang, Shuyi, Wang, Lin-Fa   +16 more
openaire   +5 more sources

UNDERSTANDING NATURALLY FRACTURED RESERVOIRS

Scientific Contributions Oil and Gas, 2022
Naturally fractured reservoir differs from clastic reservoirs in the sense that the concepts of porous media which were usually applied for clastic reservoir analysis must be modified. This means that handling naturally fractured reservoir is also different compared to handling clastic reservoir.
Suprajitno Munadi, Samsul Hidayat, Julikah Julikah, Oki Hendriana, Eko Susanto   +4 more
openaire   +1 more source

Study on structure optimization and applicability of hydrocyclone in natural gas hydrate exploitation

Frontiers in Earth Science, 2022
With the development of economy and industry, the consumption of fossil energy is gradually increasing. Currently, natural gas hydrates (NGH) are considered to be an ideal alternative energy due to its large reserve and high energy density.
Na Wei, Na Wei, Yi Qiao, Yi Qiao, Anqi Liu, Jinzhou Zhao, Jinzhou Zhao, Liehui Zhang, Liehui Zhang, Jin Xue, Jin Xue   +10 more
doaj   +1 more source

Alcohols for hydrate inhibition – Different alcohols and different mechanisms

Petroleum, 2022
Methanol has been used to prevent hydrate formation in industrial handling of hydrate forming mixtures containing water for many decades. Ethanol is also used for the same purpose in countries that have easy access to low price ethanol, like for instance
Bjørn Kvamme, Na Wei, Jinzhou Zhao, Shouwei Zhou, Liehui Zhang, Wantong Sun, Navid Saeidi   +6 more
doaj   +1 more source

Sensitivity analysis of reservoir risk in marine gas hydrate drilling

Petroleum, 2021
It is easy to change the original temperature state of marine gas hydrate reservoir by drilling, which leads to uncontrollable decomposition of gas hydrate and release of large amount of gas.
Wantong Sun, Jun Pei, Na Wei, Jinzhou Zhao, Jin Xue, Shouwei Zhou, Liehui Zhang, Bjørn Kvamme, Qingping Li, Haitao Li, Lin Jiang, Chao Zhang, Cong Li   +12 more
doaj   +1 more source

Epidemiological Peculiarities of Ebola Virus Disease Epidemic, 2013-2015 in West Africa Countries

Проблемы особо опасных инфекций, 2015
Represented are the results of analysis of the on-going EVD epidemic, 2013-2015 in West Africa countries. Identified have been epidemiological peculiarities, the principal ones of which are: the scale of epidemic transmission; social factors of ...
A. Yu. Popova, V. A. Safronov, M. Y. Boiro, E. V. Kouklev, O. V. Kedrova, S. K. Udovichenko, A. A. Lopatin, A. S. Razdorsky, E. B. Ezhlova, V. Yu. Smolensky, V. V. Kutyrev   +10 more
doaj   +1 more source

An Experimental Study on the Formation of Natural Gas Hydrate With Thermodynamic Inhibitors

Frontiers in Energy Research, 2021
Gas hydrates formed in the conditions of high pressure and low temperature in deep sea and in the process of oil and gas transportation, natural gas hydrate (NGH), will seriously affect the safety of drilling and completion operations and marine ...
Na Wei, Na Wei, Cuiying Xie, Cuiying Xie, Wantong Sun, Wantong Sun, Haitao Li, Haitao Li, Lin Jiang, Shenghui Zhang   +9 more
doaj   +1 more source

Dragon Fruits as a Reservoir of Natural Polyphenolics with Chemopreventive Properties

Molecules, 2021
Dragon fruits are a valued source of bioactive compounds with high potential to become a functional food. The aim of the study was to evaluate and compare the chemopreventive potential and chemical composition of fruits harvested in Thailand and Israel ...
P. Paśko, Agnieszka Galanty, P. Zagrodzki, P. Luksirikul, D. Barasch, A. Nemirovski, S. Gorinstein   +6 more
semanticscholar   +1 more source