The North China Institute of Science and Technology is a university in Hebei, China which was founded in 1984. The only public university affiliated to the State Administration of Work Safety, the Institute was originally the branch school of the Beijing Coal Management Institute at Yanjiao. It was in 2002 that the Institute adopted its present name. Wikipedia.
Agency: European Commission | Branch: FP7 | Program: CP | Phase: ENERGY.2010.5&6.2-1 | Award Amount: 2.45M | Year: 2011
Coal mining and utilisation results in release of significant amounts methane and represent an important threat to the fight against climate change. Coal Mine Methane drainage processes can be set up to recover methane from the emissions during coal production. Methane can also be extracted from virgin coal seams trough primary and enhanced coalbed methane recovery. The main objective of the proposed research project is to contribute to the global GHG emissions reduction objective by addressing the key challenges facing the industry and emerging economies which also are major coal mining counties worlwide. This objective canbe expanded upon as follows: - to achieve significant improvements in methane drainage efficiency and purity in coal mines in the emerging economies of China and India, where methane drainage is employed with relatively low yields of gas and purity. - to develop a novel and effective gas drainage techniques for the ultra-thick seam and gassy mining operations in Europe - to investigate the benefits of implementing horizontal wells for coalbed methane (CBM) and coupling horizontal wells with the injection of CO2 and/or CO2 enriched flue gas to enhance methane recovery and CO2 storage - to disseminate the know-how developed across the coal sector internationally
Peng Z.,North China Institute of Science and Technology |
Wu L.,Capital Normal University
International Journal of Digital Content Technology and its Applications | Year: 2012
For text categorization, one kind of FCM, two-level FCM, is proposed. The FCM includes two kinds of nodes that are attribute nodes and class nodes forming two levels, and has the intelligence advantages of structured knowledge representing and numeric matrix inference. The FCM mining method combines mutual information and gradient descent, and considers two stable states in FCM learning algorithm. The experiments demonstrate the performance of FCM applied in text classification.
Zhang X.,North China Institute of Science and Technology
Applied Mathematics and Information Sciences | Year: 2014
Unmodelled dynamics and perturbations are always immeasurable. In this paper, an adaptive sliding mode control (ASMC) based on wavelet network (WN) for a class of non-affine multi-variable nonlinear discrete systems is presented in order to compensate them. Wavelet network which parameters are tuned on-line is adopted to realize the equivalent control, and hitting controls are added in order to satisfy reaching conditions. By combining the adaptive WN with SMC strategy, the constructed control law has many advantages such as robustness, adaptive characters, and the precise mathematic models of controlled plants are not required. Finally, experiment on an inverted pendulum control system based on the proposed control design method is given to verify its effectiveness and performance. © 2014 NSP Natural Sciences Publishing Cor.
Zhang T.,North China Institute of Science and Technology
Proceedings - 3rd International Conference on Measuring Technology and Mechatronics Automation, ICMTMA 2011 | Year: 2011
The common control method cannot achieve good results to the position follow-up system because of its inaccuracy mathematical model. On the base of merits of fuzzy control, i.e. fuzzy control needless inaccuracy mathematical model of controlled plant, this paper performed design process and simulation calculations applying fuzzy controller to design the position follow-up system. Observing the tracing results, the paper achieves the desired results with its high precision and velocity and proves the application value of fuzzy control. © 2011 IEEE.
Pan W.M.,North China Institute of Science and Technology
Applied Mechanics and Materials | Year: 2014
Many researches use diff environmental conditions or application requirements in WSN. In the default Deluge mechanism, it will recover a sensor node from an updating error by reloading the stored full image again or waiting for the host machine to retransmit the full image again. This strategy is easy to implement and intuitive, but replacing the current executing image by retransmitting a full image file again is resource-consuming. To avoid retransmitting the full image when performing recovery, at the time when diff-based updating procedures have been finished, sensor nodes using our recovery mechanisms will backup the received patch files (i.e. diff script) in flash memory. Our mechanisms would effectively utilize flash memory space to store several backup patch files. When recovery is needed, our mechanisms would incrementally recover a failed node by patching up the system with each of the backup patch files. In the design of our recovery mechanisms, the failed sensor node will first try its best to recover itself without the assistance of the host machine, in order to avoid affecting the operations of other normal nodes when performing recovery procedures. Thus, compared with the full image replacement strategy, our mechanisms can save many computing resources. © (2014) Trans Tech Publications, Switzerland.
Yang W.-Y.,North China Institute of Science and Technology
Caikuang yu Anquan Gongcheng Xuebao/Journal of Mining and Safety Engineering | Year: 2013
The sizes and distribution range of collapse columns existing in Huainan mining area have been found out by 3-D seismic exploration, but the water enrichment conditions inside the columns are not clear, which greatly influences the safety mining. In this paper, the Controlled-Source Audiomagnetotellurics and Electromagnetic Wave method were adopted to prospect the water abundance of collapse columns. The result shows that the apparent formation resistivity has a certain correlation with the water abundance, that is, low resistivity is corresponding to abundant water, while high resistivity correlates with low or no water abundance. Meanwhile, the water enrichment of collapse column are analyzed according to the horizontal and longitudinal apparent resisitivity profiles in different depth, and the detection results show that the water abundance in the south of collapse column and partial areas near the faults are relatively large, namely there only exists partial water enrichment in the collapse column. A small amount of validation drillings on the ground have been constructed, and the detection results correspond well with those of drilling, which provides a new integrated geophysical method for the prospecting of collapse column in coal mine.
Zhang J.G.,North China Institute of Science and Technology
Advanced Materials Research | Year: 2013
The prediction of mine Gas Emission Amount is an important part of helping to make rational gas control measures. In order to improve the accuracy of mine gas emission prediction, this paper introduced the grey theory into the Elman artificial neural network theory, and combined the gray prediction model GM (1,1) with the Elman neural network model,established a gray Elman artificial neural network prediction model of gas emission, and carried on the simulation through software Matlab. Practice and experiment showed that this method compared well, and is superior to the traditional Grey prediction model, moreover this method also applied to the situation of original data was few or the historical data had transition. The forecasting results from this method can be more reliable and accurate, so it can instruct the practice accurately. © (2013) Trans Tech Publications, Switzerland.
Zhu X.,North China Institute of Science and Technology
Lecture Notes in Electrical Engineering | Year: 2011
In recent years, EDA (electronic design automation) technology has developed rapidly, which has penetrated into all areas of electronic system design and has brought a revolutionary change to improve the quality of electronic system design .This article is based on the development of the practical ability of students, and it analyzes the EDA teaching and engineering practice ability of students respectively and the relationship between them. The importance of the development of students of the circuit analysis, design and application development capabilities is emphasized. By introducing the specific implementation of the EDA teaching content on the electronic information class of students in my school, which is in the Process of the EDA practical training in engineering, to further clarify the EDA practice teaching for students of engineering practice quality and innovative ability of the feasibility and importance. © 2012 Springer-Verlag.
Fan J.,North China Institute of Science and Technology
Communications in Computer and Information Science | Year: 2011
This study aims to investigate the application of Web-based learning mode to English teaching in China. Combining language learning and acquisition theories with computer technology, the paper explores theoretical foundation and guiding principles for constructing a Web-based learning environment for College English teaching. Probing the limitations existing in Web-based English learning environment in China, the author discusses the possible improvement in future. © 2011 Springer-Verlag.
Li D.,North China Institute of Science and Technology
Advanced Materials Research | Year: 2012
Confucianism embraces the considerably extensive thoughts on eco-environmental protection. However, this article studies the thinking of ecological protection only based on the "reverence for life" of eco-ethics, "the proper use of natural resources", the concept of ecological balance, "conformity with destiny" of the ecological view of practice, the concept of ecological harmony of men with nature and other aspects covered in Confucianism, in the hope that human beings can learn some rewarding viewpoints from Confucianism and accomplish their transformations and creations in the modern sense. © (2012) Trans Tech Publications.