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| 1 | Current distribution and stability of LTS/HTS hybrid superconducting conductors显示文摘Current distribution and stability of a hybrid LTS/HTS superconductor, consisting of multifilamentary NbTi/Cu and Bi2223/Ag tapes, were numerically analyzed according to power-law models. The results showed that most of current passed through the LTS and the current increased in the HTS with temperature rise when the transport current was below the critical current of the hybrid conductor. The quench propagation velocity of the hybrid conductor was smaller but its minimum quench energy was larger than those of LTS conductors, indicating that the stability of the hybrid superconducting conductor was effectively improved and a high engineering current density was simultaneously achieved. Finally, a hybrid sample, made by soldering Bi2223/Ag tape onto NbTi/Cu conductor, was prepared and tested successfully at helium temperature. The experimental results qualitatively agreed with the simulated ones. | GUAN XiaoJin1,2, WANG YinShun1 & ZHOU WeiWei3 1 Key Laboratory of HV and EMC Beijing, North China Electric Power University, Beijing 102206, China 2 Department of Physics, Baoding University, Baoding 071000, China 3 Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China | 2010 | Science China(Technological Sciences)2010，53，7： | 6 |
| 2 | Color 3D Reverse Engineering显示文摘This paper presents a principle and a method of col or 3D laser scanning measurement. Based on the fundamental monochrome 3D measureme nt study, color information capture, color texture mapping, coordinate computati on and other techniques are performed to achieve color 3D measurement. The syste m is designed and composed of a line laser light emitter, one color CCD camera, a motor-driven rotary filter, a circuit card and a computer. Two steps in captu ring object’s images in the measurement process: First, the color CCD camera ta kes the color picture of the object to be used for texture mapping in post proce ssing. Secondly, the monochrome data of the object is taken. The laser light emi tter is started; the light plane and the surface of the object intersect to form an undulate line, which forms an image on the CCD sensor. After the optic- electronics transformation, the electronic signals are captured and send to the computer. A new color 3D measurement model was derived, and a rapid calibra ting method to measure the system parameters was proposed--optical plane equat ion calibrating method. A calibrating drone was designed and built. 3D color sca nning system not only provides an object’s individual point information in the 3D coordinate, in the mean time, it provides the color information of each indiv idual point. This paper also advances a multi-frame auto-merging method, i.e. several frames of color 3D digital images measured are merged quickly according to their curvature characteristics and RGB information. Initial matching and fin e tune of the registration are completely performed by the computer; initial mat ching is via user interface in helping computer to find the transformation matri x. The transformation matrix is found according to the geometric characteristics chosen by hand. After the initial transformation matrix is found, fine tune of the registration is preformed to do the optimum adjustment to achieve a complete color textured 3D model. The system can be broadly used in the fields of produc t design, mold manufacture, multimedia, game development, animation, medical eng ineering, antique digitization, etc. | XU Zhi-qin 1, YE Sheng-hua 1, FAN Guang-zhao 2 (1. School of Precision Instrument and Opto-electronics Engineering, N ational Key Lab of Measurement Technology and Instrument, EMC, Tianjin University, Tianjin, China 2. Department of Mechanical Engineering, National Taiwan University, Taiwan, Chi na) | 2002 | 厦门大学学报(自然科学版)2002，41，S1： | 3 |
| 3 | On-demand coding-aware routing in wireless Mesh networks显示文摘Network coding,which exploits the broadcast nature of wireless medium,is an effective way to improve network performance in wireless multi-hop networks,but the first practical wireless network coding system COPE cannot actively detect a route with more coding opportunities and limit the coding structure within two-hop regions.An on-demand coding-aware routing scheme (OCAR) for wireless Mesh networks is proposed to overcome the limitations specified above by actively detecting a route with more coding opportunities along the entire route rather than within two-hop regions.Utilizing more coding opportunities tends to route multiple flows ‘close to each other’ while avoiding interference requires routing multiple flows ‘away from each other’.OCAR achieves a tradeoff by adopting RC AIA as routing metric in route discovery,which is not only coding-aware but also considers both inter and intra flow interference.Simulation results show that,compared with Ad-hoc on-demand distance vecfor routing (AODV) and AODV+COPE,OCAR can find more coding opportunities,thus effectively increase network throughput,reduce end to end delay and alleviate network congestion. | SUN Jian-zhen,LIU Yuan-an,HU He-fei,YUAN Dong-ming Wireless Communications and EMC Laboratory,Beijing University of Posts and Telecommunications,Beijing 100876,China | 2010 | The Journal of China Universities of Posts and Telecommunications2010，17，5： | 3 |
| 4 | Novel Temperature-Independent FBG-type Pressure Sensor with Step-Coated Polymers显示文摘In this paper, a novel technique is presented for an FBG with the step-coated polymers, which can be used for the measurement of the temperature-independent pressure in the temperature range between 5 and 50℃. | Weigang Zhang, Guiyun Kai, Xiaoyi DongInstitute of Modern Optics, the key laboratory of Optoelectronic Information Technology Science, EMC, Nankai University, Tianjin, 300071, P. R. China, Tel: 86-22-23509479, Fax: 86-22-23508770, Email: weigangzh22@sina.com | 2003 | 光学学报2003，23，S1： | 3 |
| 5 | Bone mineral density reference norms for Hong Kong Chinese 显示文摘 | Lynn HS Lau EMC Au B | 2005 | Osteoporos Ints2005，16，12： | 1 |
| 6 | Neuralized is expressed in the alpha/beta lobes of adult Drosophila mush- room bodies and facilitates olfactory long-term memory for- mation显示文摘 | Pavlopoulos E Anezaki M Skoulakis EMC | 2008 | J Mol Biol2008，105，14： | 1 |
| 7 | Variation in sensitivity to fungicides which inhibit ergosterol biosynthesis in wheat powdery mildew显示文摘 | DE WAARD MA KIPP EMC HORN NM | 1986 | Neth J PI Path1986，92，： | 1 |
| 8 | Long-term survival of octogenarian patients submitted to isolated coronary artery bypass graft surgery显示文摘 | Pivatto F Valle FH Pereira EMC | 2011 | Rev Bras Cir Cardiovasc2011，26，1： | 1 |
| 9 | Intermittent androgen suppression with buserelin and nilutamide for the treatment of prostate cancer patients 显示文摘 | Heathcote P Lock MTWT | 2003 | Eur Urol2003，12，： | 1 |
| 10 | The relationship between COLIAI polymorphisms (SpI) and COLIA2 polymorphisns(EcoR1 and PuvⅡ) with bone mineral density in Chinese men and women 显示文摘 | Lau EMC Choy DTK Li M | 2004 | Calcif Tissue Int2004，75，： | 1 |
| 11 | Novel Bandwidth Sensor Based Fiber Grating显示文摘In this paper, the basic principle and the design method of the bandwidth sensing of fiber grating are expounded, respectively. Several novel bandwidth sensor based fiber grating are analyzed and discussed. | Xiaoyi Dong, Weigang Zhang, Guiyun Kai, Shuzhong Yuan, Qida ZhaoInstitute of Modern Optics, the key laboratory of Optoelectronic Information Technology Science, EMC, Nankai University, Tianjin, 300071, P. R. China | 2003 | 光学学报2003，23，S1： | 1 |
| 12 | Biogeochemical hot spots and hot moments at the interface of terrestrial and aquatic ecosystems 显示文摘 | Michael Emc Clain Elizabeth W Boyer Dent C Lisa | 2003 | Ecosystems2003，，6： | 1 |
| 13 | Lung cancer and the human gene for ribonucleotide reductase subunit M1 ( RRM1 ) 显示文摘 | Pitterle DM Kin YC Jolicoeur EMC | 1999 | Mamm Genome1999，10，： | 1 |
| 14 | Efficacyof non-thermal technologies and sanitizer solutionson microbial load reduction and quality retention ofstrawberries显示文摘 | Alexandre EMC Brandao T R S Silva C L M | 2012 | Journal of Food Engineering2012，108，3： | 1 |
| 15 | Kikuchi-Fujimoto disease associated with mixedconnective tissue disease:cases report显示文摘 | Sella EMC Caleiro MTC Neto EFB | 1998 | Rev Bras Reumatol1998，38，： | 1 |
| 16 | Down syndrome genetics: unravelling a mnhifactorial disorder显示文摘 | Hemandez D Fisher EMC | 1996 | Hum Mol Genet1996，5，1： | 1 |
| 17 | The ratio of the nucleon structure function F2^N for iron and deuterium 显示文摘 | EMC AUBER J J | 1983 | Phys Lett1983，，： | 1 |
| 18 | Incidence of fever and bacteremia following transbronchial needle aspiration显示文摘 | Witte EMC Opal SM Gilbert JG | 1986 | Chest1986，89，1： | 1 |
| 19 | Stressful life e- vents and depressive problems in early adolescent boys and girls: The influence of parental depression, teraperament and family environment 显示文摘 | BOUMA EMC ORMEL J VERHULST FC | 2008 | J Affect Disord2008，105，13： | 1 |
| 20 | Fully transparent ZnO thin-film transistor produced atroom temperature显示文摘 | Fortunato EMC Barquinha PMC Pimentel A C M B G | 2005 | Adv Mater2005，17，5： | 1 |
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