Results 81 to 90 of about 27,111 (219)

Conception of coordinated development technology system for coalbed methane and underground coal gasification in inclined coal seams

Meitan kexue jishu
Coalbed methane (CBM) development and underground coal gasification (UCG) are important sources for coal-based natural gas production in China, and coal and CBM resources are abundant in the inclined coalbed development area of the Xinjiang foreland ...
Bo WEI, Shuguang YANG, Xin LI, Shuangming WANG, Qingmin SHI, Lanhe YANG, Gang WANG, Xuehai FU, Hongmei SU, Chao JIA, Zhenpeng HU, Chen ZHAO   +11 more
doaj   +1 more source

Uncontrolled Generation Analysis and System Optimization of Permanent Magnet Synchronous Motor for Electric Vehicle

Xibei Gongye Daxue Xuebao, 2019
When a permanent magnet synchronous motor(PMSM) which is controlled by flux-weakening strategy rotates in high speed, the controller would send the turning-off signals to switch off all the transistors quickly if faults(e.g.

doaj   +1 more source

Worldwide Developments in UCG and Indian Initiative

Procedia Earth and Planetary Science, 2015
AbstractConcept of converting coal in-situ into gas has existed for many years. Basically it involves drilling a pair of wells into a coal seam and injecting gasifying agent like oxygen or air and steam through the Injector and after ignition and gasification of coal, the gas is brought to the surface through the other hole (Producer) and used as fuel ...
Vyas, D.U., Singh, R.P.
openaire   +1 more source

Gauge invariant averages for the cosmological backreaction

, 2009
We show how to provide suitable gauge invariant prescriptions for the classical spatial averages (resp. quantum expectation values) that are needed in the evaluation of classical (resp. quantum) backreaction effects. We also present examples illustrating
A. Ishibashi, D.H. Lyth, E.W. Kolb, G Marozzi, G Veneziano, G. Geshnizjani, G. Geshnizjani, K.A. Malik, K.A. Malik, M Gasperini, M. Bruni, M. Gasperini, M. Gasperini, R.H. Brandenberger, S. Rasanen, T. Buchert, V.F. Mukhanov, V.F. Mukhanov, W. Unruh   +18 more
core   +1 more source

The mineral resources of the English Channel and Thames Estuary [PDF]

, 2013
This report accompanies the Marine mineral resource map the marine sand and gravel resources of the English Channel and Thames Estuary (Bide et al, 2012).
Balson, P.S., Bide, T.P., Campbell, E., Mankelow, J.M., Shaw, R.A., Walters, A.S.   +5 more
core  

Gas Production Strategy of Underground Coal Gasification Based on Multiple Gas Sources

The Scientific World Journal, 2014
To lower stability requirement of gas production in UCG (underground coal gasification), create better space and opportunities of development for UCG, an emerging sunrise industry, in its initial stage, and reduce the emission of blast furnace gas ...
Duan Tianhong, Wang Zuotang, Zhou Limin, Li Dongdong   +3 more
doaj   +1 more source

Self-learning Multiscale Simulation for Achieving High Accuracy and High Efficiency Simultaneously

, 2009
We propose a new multi-scale molecular dynamics simulation method which can achieve high accuracy and high sampling efficiency simultaneously without aforehand knowledge of the coarse grained (CG) potential and test it for a biomolecular system. Based on
Case D. A., Shoji Takada, Wenfei Li
core   +1 more source

Use of an Institutional Personal Learning Environment to support learning actions in Higher Education

AtoZ: Novas Práticas em Informação e Conhecimento, 2016
Introduction: This paper presents a pilot experience on the use of an Institutional Personal Learning Environment (iPLE) which aimed to describe the conception, design and development of the iPLE, as well as to determine how users approached the iPLE ...
Lucila Pérez Cascante, Jesús Salinas, Victoria Marín   +2 more
doaj   +1 more source

Research progress and future study of carbon emission reduction for UCG

Meitan xuebao
The integration of underground coal gasification (UCG) and carbon emission reduction is expected to become an excellent green energy technology during the transitional stage from the current to the arrival of carbon neutrality, and even play an important
Yong QIN, Tongsheng YI, Yongfeng ZHOU, Lei YANG, Jun WANG   +4 more
doaj   +1 more source

Ununited accessory caudal glenoid ossification centre and associated joint mouse as a cause of lameness in a cat

Journal of Feline Medicine and Surgery Open Reports, 2019
Case summary A 16-year-old neutered female domestic shorthair cat was evaluated for chronic lameness of the right thoracic limb. On clinical examination, pain was localised to the right glenohumeral joint.
Boris MA Serck, Erik EG Wouters
doaj   +1 more source