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Online since: December 2012
Authors: Yan Hong Chang, Hui Luo, Yao Zhou, Chun Hong Shi
Construction of Recombinant E.coli Expressing A Thermophilic Catalase and Its Application in H2O2 Wastewater Treatment Yanhong Chang 1, a, Chunhong Shi 1,b , Yao Zhou2,c and Hui Luo 2,d* 1Department of Environmental Engineering, University of Science and Technology Beijing, Beijing, P.R.China, 100083 2Department of Biological Science and Engineering, University of Science and Technology Beijing, Beijing, P.R.China, 100083 ayhchang0512@yahoo.com.cn, bsch.22@163.com, czhouyao123@163.com, dluohui@ustb.edu.cn Keywords: Catalase; Cultivation conditions; Recombinant strains; H2O2 wastewater.
Materials and Methods A.
The Journal of Biological Chemistry, 285:19029-19034. (2010)
Online since: July 2011
Authors: Xiao Hui Li, Jin Rui Zhang, Ran Ran Zhao, Wei Zheng
Wee, et al: Journal of Materials in Civil Engineering Vol. 15 (2003), p. 134-143 [4] Y.
Shanghai: Science and Technology Press (2003), p. 32-36 (In Chinese)
Online since: February 2011
Authors: Zhong Bo Peng, Ji Lei Li, Xue Feng Han, Jun Yan
Acknowledgements The research is supported by Natural Science Foundation of Chongqing (Grant No.
International Journal of Production Research, 41(7):1519–1532, 2003
[4] An intelligent AE sensor for the monitoring of finish machining process Dolinsek, S.; Kopac, J.; Viharos, Z.J.; Monostori, L.; Intelligent Processing and Manufacturing of Materials, 1999.
Online since: March 2007
Authors: Jerry Sokolowski, John C. Burford
Acknowledgements The authors acknowledge the support of the Natural Sciences and Engineering Research Council of Canada (NSERC), the Nemak of Canada Corporation and the Ford Motor Company.
Journal of Materials Processing Technology, 1997. 63: p. 690-695. 5.
Online since: October 2007
Authors: Dmitri A. Molodov, Günter Gottstein, Dirk M. Kirch, Bing Bing Zhao
Balluffi: Interfaces in Crystalline Materials (Clarendon Press, Oxford 1995), p. 367 [4] T.
Mittemeijer: Interface Science Vol. 9 (2001), p. 287 [6] S.
Cho: Journal of Mat.
Online since: October 2011
Authors: Yun Ning Zhang, You Hong Cai
Projects among the project group exchange the massive material information and energy and influent mutually between projects, more participants and more intense in conflicts of interest. all these result in a large number of management interface and more complex levels of management increasing the difficulty of program management.
According to the flexible management of the project team of the indicators of the specific circumstances of the standards and content, and various levels is decided by the literature material and the experience of managers.
[3] Qinghu Pang a, Dong Du: modern production system of flexible decision, edited by Science and technology management research (2004)
[5] Guofeng Ma, Jianxin You: analysis of flexible control of the quantitative based on entropy project goals edited by Journal of Shanghai Jiao Tong University (2007)
Online since: November 2012
Authors: Fei Wu, Huan Liu, Bing Zeng
(1) In this formula, G is weight (N); g is gravity acceleration, 9.81(m/s2); D is diameter (m) According to the axis translation principle of inertia moment, when object moves around an axis which parallel to the center axis, its moment of inertia is: (2) In this formula, is the object’s moment of inertia when it moves around the center axis; H is the parallel distance between the gravidity center and the rotation axis. 2.2 The equivalent conversion of elastic parameters In the torsional vibration system, when a torque M added to both end of a shaft, the shaft would be torsioned to a certain angle: (3) In this formula, M is torque(N·m); L is the length of the shaft (m);G is Material
When the material and diameter of the shaft is decided, stiffness is inversely proportional to length, so: (4) Elastic parameters of the shaft have several cases: one is simple shape shaft, such as equal diameter shaft, we can use formula (2-4) to calculate; another is complex shape shaft, such as the stepped shaft, crankshaft etc, it should be broken down into several simple units, and then find out the stiffness of each unit, according to a certain principle to solve for total stiffness and amend[5]. 2.3 The torsional vibration equivalent model The equivalent model of the second gear has been established by the equivalent conversion principle mentioned above.
Journal of Mechanical Strength [J].2009, 31(3):349~354
Design of the Flexible Coupling on Adams [J].Science & Technology Information. 2009, (9):78~79
Online since: December 2010
Authors: Yan Bai Wang, Lu Tan, Nian Feng Li, Wei Liu
Analyses and System Implement to Fingerprint Image Segmentation Algorithm Based on Field Yanbai Wang, Lu Tan, Nianfeng Li and Wei Liu Dept. of Computer Science and Technology, Changchun University, Changchun, Jilin, China wangyb@ccu.edu.cn Keywords: fingerprint; image segmentation; image processing; strength field; gradient field Abstract.
Fractal dimension of the physical model that is the same graph structure tiny elements can be organized into some kind of performance for the objective nature of the material structure graphics.
The objective existence of various natures between the material structures of graphics may be small elements of the regional units of the same but the number of units in the region is composed of different graphics to distinguish the difference between structures.
Segmentation of fingerprint images using linear classifier[J].EURASIP Journal on Applied Signal Processing,2004(4):480~494 [3]Jain A K,Uludag U,Hsu R L.Hiding a face in a fingerprint image[C]//Proc ICPR, Quebec City,2002:756~759
Online since: September 2011
Authors: Hong Ping Wang, Yun Peng Hu
For instance, selecting effective project managers to form a strong project department; carrying out the project risk management objectives to each level of the management; giving the greatest attention to the risk event from the funds, materials, equipments and manpower, monitoring risks closely according to their priority.
Zhu: Sustainable development evaluation and application mode study of construction project, Journal of Chongqing Construction University, 2002, Vol. 24(2):74-78
Wen: Research on enterprise performance evaluation based on sustainable development, Economic Science Press, 2006: 86-93
Online since: October 2014
Authors: Sándor Ravai Nagy, Mircea Lobonţiu
Legend: 1 - Material testing machine; 2 - Digital measuring rods with 0.01mm reading precision; 3 - Testing device; 4 - Testing specimen.
Conclusions Following the completion of the bending tests of the asymmetric and symmetric tooth of the gear, we have come to the following conclusions: - While bent on the "modified +" flank, the asymmetric tooth statically withstands a 10-16% tangential force higher than when the bending is produced on the “- modified flank” (for this study, the "- modified flank" was kept at 20°); - On the basis of the present experimental results, we can recommend a correction factor "kF" for sizing gears with asymmetric teeth in module m=5 mm, b=8 mm, tooth fillet radius ρ=1 and ρ=1.5 respectively, and the annealed C45 material, depending on the active flank which transmits the moment, according to Table 3.
Kapelevich, Geometry and design of involute spur gears with asymmetric teeth, Elsevier Science Ltd., 2000
Lobonţiu, Technological Solutions for Manufacturing Gears with Asymmetric Teeth, Academic Journal of Manufacturing Engineering.
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