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| 1 | RESEARCH ON THE EVALUATION METHOD OF FRICTION AND LUBRICATION IN DEEP DRAWING显示文摘The deformation characteristic of bland in deep drawing is discussed. It is pointed out that the friction and lubrication conditions in for drawing are different from that in mechanical motion or machine work or other plastic process. The common test methods in laboratories are analyzed. It shows that though all those test methods can test the friction coefficient, the probe test method is most suitable for the research of friction and lubrication and the process in deep drawing, for this method is identical with the actual work condition either from the test principle or deformation status of the blank. Last the successful application in the deep drawing simulator newly developed the the probe method are intro- duced in detail. | D. N. He, X. F. Yin, H. Z. Thao, D. L*, X. Y. Ruan, J. L. Cheng and J. Y. Jiang 1) Shanghai Jiao Tong University, National Die & Mold CAD E. R. C, Shanghai 200030, China 2) Shanghai Vopkswagen Automotive Company Ltd., Shanghai 201805, China Manuscript re | 2000 | Acta Metallurgica Sinica(English Letters)2000，13，2： | 13 |
| 2 | No association between cyclooxygenase-2 and uridine diphosphate glucuronosyltransferase 1A6 genetic polymorphisms and colon cancer risk显示文摘AIM:To investigate the association of variations in the cyclooxygenase-2(COX2) and uridine diphosphate glucuronosyltransferase 1A6(UGT1A6) genes and non-steroidal anti-inflammatory drugs(NSAIDs) use with risk of colon cancer.METHODS:NSAIDs,which are known to reduce the risk of colon cancer,act directly on COX2 and reduce its activity.Epidemiological studies have associated variations in the COX2 gene with colon cancer risk,but others were unable to replicate this finding.Similarly,enzymes in the UGT1A6 gene have been demonstrated to modify the therapeutic effect of NSAIDs on colon adenomas.Polymorphisms in the UGT1A6 gene have been statistically shown to interact with NSAID intake to influence risk of developing colon adenomas,but not colon cancer.Here we examined the association of tagging single nucleotide polymorphisms(SNPs) in the COX2 and UGT1A6 genes,and their interaction with NSAID consumption,on risk of colon cancer in a population of 422 colon cancer cases and 481 population controls.RESULTS:No SNP in either gene was individually statistically significantly associated with colon cancer,nor did they statistically significantly change the protective effect of NSAID consumption in our sample.Like others,we were unable to replicate the association of variants in the COX2 gene with colon cancer risk(P > 0.05),and we did not observe that these variants modify the protective effect of NSAIDs(P > 0.05).We were able to confirm the lack of association of variants in UGT1A6 with colon cancer risk,although further studies will have to be conducted to confirm the association of these variants with colon adenomas.CONCLUSION:Our study does not support a role of COX2 and UGT1A6 genetic variations in the development of colon cancer. | Cheryl L Thompson Sarah J Plummer Alona Merkulova Iona Cheng Thomas C Tucker Graham Casey Li Li | 2009 | World Journal of Gastroenterology2009，15，18： | 11 |
| 3 | Archaeological records of Dadiwan in the past 60 ka and the origin of millet agriculture显示文摘This paper reports the recent excavation of Unit Dadiwan06 at the Dadiwan site in Qin’an County, Gansu.A 65 ka chronological framework is established for Dadiwan06 on the basis of absolute dating (AMS 14C and OSL), stratigraphy, climate change events and archaeology.Artifact distributions reveal patterns of human behavioral variation and adaptation over the past 60 ka, from primitive hunting and gathering to advanced hunting and gathering, to primitive Neolithic agriculture, and finally to advanced Neolithic agriculture. | ZHANG DongJu CHEN FaHu BETTINGER R L BARTON L JI DuXue MORGAN C WANG Hui CHENG XiaoZhong DONG GuangHui GUILDERSON T P ZHAO Hui | 2010 | Chinese Science Bulletin2010，55，16： | 6 |
| 4 | Pulmonary infection control window in treatment of severe respiratory failure of chronic obstructive pulmonary diseases: a prospective, randomized controlled, multi-centred study显示文摘Background Early withdraw from invasive mechanical ventilation (MV) followed by noninvasive MV is a new strategy for changing modes of treatment. This study was conducted to estimate the feasibility and the efficacy of early extubation and sequential noninvasive MV commenced at beginning of pulmonary infection control window in patients with exacerbated hypercapnic respiratory failure caused by chronic obstructive pulmonary diseases (COPD). Methods A prospective, randomized controlled study was conducted in eleven teaching hospitals' respiratory or medical intensive care units in China. Ninety intubated COPD patients with severe hypercapnic respiratory failure triggered by pulmonary infection (pneumonia or purulent bronchitis) were involved in the study. When the pulmonary infection had been controlled by antibiotics and comprehensive therapy, the 'pulmonary infection control window (PIC window)' has been reached. Each case was randomly assigned to study group (extubation and noninvasive MV via facial mask immediately) or control group (invasive MV was received continuously after PIC window by using conventional weaning technique).Results Study group (n=47) and control group (n=43) had similar clinical characteristics initially and at the time of PIC window. Compared with control group, study group had shorter duration of invasive MV [(6.4±4.4) days vs (11.3±6.2) days, P=0.000], lower rate of ventilator associated pneumonia (VAP) (3/47 vs 12/43, P=0.014), fewer days in ICU [(12±8) days vs (16±11) days, P=0.047] and lower hospital mortality (1/47 vs 7/43, P=0.025).Conclusions In COPD patients requiring intubation and invasive MV for hypercapnic respiratory failure, which is exacerbated by pulmonary infection, early extubation followed by noninvasive MV initiated at the start of PIC window may decrease significantly the duration of invasive MV, the risk of VAP and hospital mortality. | Wang, C Zhan, QY Cao, ZX Wei, LQ Cheng, ZZ Liu, S Zhang, JL Chen, RC Luo, Q Niu, SF Zhu, L Wu, DW Fang, BM Wu, TH Wang, CZ Liu, YN | 2005 | Chinese Medical Journal2005，，19： | 6 |
| 5 | Optimal approximation of linear systems by a differential evolution algorithm显示文摘 | Cheng S L Hwang C | 2001 | IEEE Trans on Systems Man and Cybernetics-A2001，31，6： | 2 |
| 6 | The pharmacology effect and clinical development of huperzine A显示文摘 | LIU X L CHENG C R CAO W | 2006 | Hera Med2006，，2： | 1 |
| 7 | Damage-based formability analysis for TWBs显示文摘 | Cheng C H Jie M | 2005 | International Journal of Damage Mechanics2005，14，1： | 1 |
| 8 | Efficacy and safety of sorafenib in patients in the Asia Pacific region with advanced hepatocellular carcinoma: a phase Ⅲ randomised,double-blind, placebo controlled trial显示文摘 | Cheng A L Kang Y K Chen Z Tsao C J Qin S Kim J S | 2009 | Lancet Oncol2009，10，： | 1 |
| 9 | Direct observation of short-circuit diffusion during the formation of a single cupric oxide nanowire显示文摘 | Cheng C L Ma Y R Chou M H | 2007 | Nanotechnology2007，18，24： | 1 |
| 10 | Immobilizationof RGD peptide on HA coating through a chemical bondingapproach显示文摘 | YANG C L CHENG K WENG W J | 2009 | Journal of Materials Science:Materials in Medi-cine2009，20，11： | 1 |
| 11 | Acetone extract of Bupleurum scorzonerifolium inhibits proliferation of A549 human lung cancer cells via inducing apoptosis and suppressing telomerase activity 显示文摘 | Cheng Y L Chang W L Lee S C | 2003 | Life Sci2003，73，18： | 1 |
| 12 | A dominant negative cadherin inhibits osteoblast differrentiation 显示文摘 | Cheng S L Shin C S Towler D A | 2000 | J Bone Miner Res2000，15，12： | 1 |
| 13 | Cryptanalysis of a remote user authentication scheme using smart cards显示文摘 | CHAN C K CHENG L M | 2000 | IEEE Transactions on Consumer Electronics2000，46，4： | 1 |
| 14 | low-dose intraoperative mitomycin cas chemoadjuvent for pteryium surgery 显示文摘 | Cheng H C Tseng S H Kao P L | 2001 | Cornea2001，20，1： | 1 |
| 15 | Accurate error- rate performance analysis of OFDM on frequency-se- lective Nakagami-m fading channels显示文摘 | DU Z CHENG J L BEAULIEU N C | 2006 | IEEE Trans Commun2006，54，2： | 1 |
| 16 | Phosphate removal from water using lithium intercalated gibbsite 显示文摘 | Wang S L Cheng C Y Tzou Y M | 2007 | J Hazard Mater2007，147，： | 1 |
| 17 | Numerical simulation for isothermal dendritic growth of succinonitrile-acetone alloy显示文摘 | CHEN Z CHENG C L HAO L M | 2008 | Transactions of Nonferrous Metals Society of China2008，18，： | 1 |
| 18 | Common due- window assignment and scheduling of linear time- dependent deteriorating jobs and a deteriorating maintenance activity 显示文摘 | Cheng T C E Yang S J Yang D L | 2012 | International Journal of Production Economics2012，135，1： | 1 |
| 19 | Changes in venous hemody-namics after superficial vein surgery for mixed superficial and deep ve-nous insufficiency显示文摘 | Ting A C Cheng S W Wu L L | 2001 | World J Surg2001，25，2： | 1 |
| 20 | A novel time domain method to extract equivalent circuit model of patterned ground显示文摘 | Cheng C H Tsai C H Wu T L | | 0，，： | 1 |
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