Results 171 to 180 of about 23,540 (196)

Glycodeoxycholic acid alleviates central precocious puberty by modulating gut microbiota and metabolites in high-fat diet-fed female rats. [PDF]

Cell Mol Life Sci
Wu N, Jiang X, Liu Y, Zhang M, Yue M, Chen F, Wu W, Li N, Wang Q, Zhang L.   +9 more
europepmc   +1 more source

<i>Paederia scandens</i> extract alleviates obesity via modulating the gut microbiota and serum metabolome disorder. [PDF]

Front Microbiol
Yang Y, Si J, Mo J, Li J, Pan B, Pan Y, Jiang L, Wang D, Feng X.   +8 more
europepmc   +1 more source

Economic assessment of an integrated UCG-CCGT-CCS process

, 2012
Nakaten, N., Kempka, T., Green, M., Schlüter, R., Merachev, D., Preshelkova, A., Azzam, R.   +6 more
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Developing of optimal control system for UCG

Proceedings of the 13th International Carpathian Control Conference (ICCC), 2012
Underground Coal Gasification (UCG) belongs to clean technologies for obtaining energy from coal seam. Optimal control of UCG is one way for increasing of effectiveness the transformation coal to syngas. Process control system has been developed in UCG laboratory. Feedback optimal control was developed as system with two levels.
Karol Kostur, Jan Kacur
openaire   +2 more sources

The verification of thermodynamic model for UCG process [PDF]

2016 17th International Carpathian Control Conference (ICCC), 2016
In this paper is described thermodynamic model for UCG process and his verification. The main task of thermodynamic process is finding the composition of gasification products by known thermodynamic temperature and by known pressure, according minimization of Gibson energy of system.
Marek Laciak, Karol Kostur, Jan Kacur
openaire   +1 more source

Indirect temperatures measurement in the UCG process

Proceedings of the 14th International Carpathian Control Conference (ICCC), 2013
The technology of the underground coal gasification (UCG) is still under development and provides alternative for conventional underground mining. UCG is the process, which can be attractive from environmental and economic aspect and is able to have a wide utilization in the future. This technology is less expensive than conventional mining.
Milan Durdan, Jan Kacur
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Remote monitoring and control of the UCG process

2011 12th International Carpathian Control Conference (ICCC), 2011
Verification of the underground coal gasification (UCG) in laboratory conditions can brings same knowledge for effective control of this process. Automated process monitoring and control during gasification sometimes requires intervention of the expert personnel, which is not still available on operation.
Milan Durdan, Marek Laciak, Jan Kacur
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Development of control and monitoring system of UCG by Promotic

2011 12th International Carpathian Control Conference (ICCC), 2011
Monitoring and late control system for Underground Coal Gasification (UCG) in laboratory condition were developed. Architecture server & client were used. Hardware configuration consists from PC an PLC. Software package was created on base Automation Studio and Promotic.
Jan Kacur, Karol Kostur
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Increasing the UCG efficiency by waste heat utilization

Fuel, 2017
Abstract The paper presents an improved well steam generator design and the mathematical model for calculating the operating parameters. Well steam generator increases efficiency of underground gasifier by recovery of the flue gas heat and converting it to the superheated steam.
Alexey Belov, Igor Grebenyuk, Oleg Danilov, Andrei Babaev, Nikolai Kinaev   +4 more
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CAVITY GROWTH MECHANISMS IN UCG WITH SIDE WALL BURN GASIFICATION

Proceedings of SPE Annual Fall Technical Conference and Exhibition, 1978
Abstract A preliminary two-dimensional model for in-situ underground coal gasification is presented for discussion. The model describes cavity formation from the injection well end and link zone burn up, where the initial link zone geometry is assumed at this time. Cavity growth is predicted via an integral boundary
Steven A. Lutz, Mahmoud Binaie-Kondolojy, Thomas L. Eddy, Kirti H. Mehta, Sidney H. Schwartz   +4 more
openaire   +2 more sources