Results 31 to 40 of about 2,661,924 (301)

Phase Transitions in Ultra-Cold Two-Dimensional Bose Gases

, 2006
We briefly review the theory of Bose-Einstein condensation in the two-dimensional trapped Bose gas and, in particular the relationship to the theory of the homogeneous two-dimensional gas and the Berezinskii-Kosterlitz-Thouless phase.
Blakie, P. B., Hutchinson, D. A. W.
core   +1 more source

Geological characteristics and resource potential of deep coalbed methane in Guizhou

Meitan xuebao
Accelerating the exploration and development of deep ( > 1 000 m)coalbed methane (CBM) resources is an important way for the large-scale development of CBM and an important development direction in recent years. Guizhou Province is rich in CBM resources,
Zhaobiao YANG, Wei GAO, Yong QIN, Mengjiang ZHANG, Cunlei LI, Zhihua YAN, Yuhui LIANG, Benju LU, Yilin CHEN, Caifang WU, Jie CHEN, Geng LI, Dexiu WEN   +12 more
doaj   +1 more source

Ionization in atmospheres of brown dwarfs and extrasolar planets. IV. The effect of cosmic rays [PDF]

, 2013
Cosmic rays provide an important source for free electrons in Earth's atmosphere and also in dense interstellar regions where they produce a prevailing background ionization. We utilize a Monte Carlo cosmic ray transport model for particle energies of 10(
Helling, Christiane, Rimmer, Paul
core   +2 more sources

Establishment and application of material balance equation for deep coalbed methane reservoirs based on coal formation stimulation background

Meitan kexue jishu
In recent years, the deep coalbed methane was developed rapidly, with breakthroughs in daily production of tens of thousands of cubic meters per well in multiple deep coalbed methane blocks.
Juntai SHI, Fengyin XU, Yunxing CAO, Xiangfang LI, Hongxing HUANG, Kai WANG, Ming CHEN, Shuo ZHANG, Yitianyu JI, Wei WANG, Zheng SUN, Jing LI   +11 more
doaj   +1 more source

Non-resistivity-based saturation evaluation methods in shale gas reservoirs

Energy Geoscience, 2023
Free gas saturation is a key parameter for calculating shale gas reserves. The complex conductivity mechanism of shale reservoirs restricts the application of Archie's formula and its extended form for the evaluation of free gas saturation.
Kun Liu, Jing Lu, Song Hu, Jun Li
doaj   +1 more source

GH-3PAD – a new numerical solver for multiphase transport in porous media - new insights on gas hydrate and free gas co-existence [PDF]

, 2013
Gas Hydrate-3 Phase Advanced Dynamics (GH-3PAD) code has been developed to study the geophysical and biochemical processes associated with gas hydrate as well as free methane gas formation and dissolution in marine sediments.
Burwicz, Ewa, Rüpke, Lars, Wallmann, Klaus   +2 more
core  

H-alpha and Free-Free Emission from the WIM

, 2010
Recent observations have found the ratio of H-alpha to free-free radio continuum to be surprisingly high in the diffuse ionized ISM (the so-called WIM), corresponding to an electron temperature of only ~3000K. Such low temperatures were unexpected in gas
Abrahamsson, B. T. Draine, Barinovs, Collins, Dobler, Dobler, Draine, Greenawalt, Griffin, Haffner, Hill, Hoopes, Indriolo, Jenkins, Lepp, Madsen, Mathis, McKee, Miller, Nussbaumer, Otte, Pequignot, Pequignot, Rand, Rand, Reynolds, Reynolds, Reynolds, Rossa, Ruobing Dong, Sembach, Sofia, Tayal, Tayal, Tayal, Verner, Verner, Wang, Weingartner, Weingartner, Wood   +40 more
core   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Coal-rock gas: Concept, connotation and classification criteria

Petroleum Exploration and Development
In recent years, great breakthroughs have been made in the exploration and development of natural gas in deep coal-rock reservoirs in Junggar, Ordos and other basins in China.
Guoxin LI, Shuichang ZHANG, Haiqing HE, Xinxing HE, Zhe ZHAO, Xiaobing NIU, Xianyue XIONG, Qun ZHAO, Xujie GUO, Yuting HOU, Lei ZHANG, Kun LIANG, Xiaowen DUAN, Zhenyu ZHAO   +13 more
doaj   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

FEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil, Anna Corrà, Annalisa Scapolatiello, Chengxiang Qiu, Gianluca Amadei   +4 more
wiley   +1 more source