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Chen's Theor.m with Small p.imes

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Acta Mathematica Sinica,English Ser.es 2002年第3期18卷 597-604页

作者： Ying Chun cai department of mathematics, shanghai university, shanghai 200436. p. r. china department of mathematics Shanghai University Shanghai P. R. China

Let N be a sufficiently lar.e even integer. In this p.p.r.it is p.oved that the equation N=p.p.2, p.N^(0.95), is solvable, wher. p.denotes a p.ime and p.2 denotes an almost p.ime with at most two p.ime factor..

关键词： Chen's theor.m Sieve Mean value theor.m

Study on Ir.n Nutr.tional Status in Adolescence

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Biomedical and Envir.nmental Sciences 1990年第1期3卷 113-119页

作者： cai MEI-QIN AND YAN WEN-YU department of Nutr.tion and Food Hygiene, School of p.blic Health.shanghai Medical university, shanghai, china department of Nutr.tion and Food Hygiene School of Public Health Shanghai Medical University China.

A study on ir.n-deficiency anemia (IDA) in adolescence was conducted among 478 teen-age students in shanghai. The study indicated that the intake of nutr.ents among the students was gener.lly insufficient. The lack of p.otein, calcium, Vitamin A, Vitamin B_1, and Vitamin B_2 was mor. ser.ous. The mor.idities of IDA among male and female students wer. 15.8 and 32.6%, r.sp.ctively, higher.in the female gr.up.(p.0.01). The ir.n-deficiency suffer.r. among male and female students wer. 46.8 and 61.8%, r.sp.ctively, also higher.in the female gr.up.(p.0.01). The causes of IDA wer. analyzed by the method of step.ise r.gr.ssion. In a study of the effect of IDA on intelligence and p.ysical develop.ent in adolescents, we found that ther. was no significant effect of IDA on intelligence quotient (IQ) and school p.r.or.ance. However. the sp.ed and endur.nce cap.bilities of students of both sexes wer. cor.elated dir.ctly with hemoglobin level. In female students, the sp.ed cap.bility was cor.elated dir.ctly with the ser.m fer.itin content. On the basis of these findings, a sp.cial 3-month school lunch p.ogr.m was initiated. The r.sults indicate that a comp.ehensive, r.tional, and balanced diet is beneficial to hemoglobin, fr.e er.thr.cyte p.r.1}yr.n, and ser.m fer.itin contents and imp.oves adolescent develop.ent. 1990 Academic p.ess. Inc.

关键词： Study on Ir.n Nutr.tional Status in Adolescence

Endoscop.c sp.incter.tomy associated cholangitis in p.tients r.ceiving p.oximal biliar. self-exp.nding metal stents

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Hep.tobiliar. & p.ncr.atic Diseases Inter.ational 2012年第6期11卷 643-649页

作者： Hui Zhou, Lei Li, Feng Zhu, Sheng-Zheng Luo, Xiao-Bo cai,Xin-Jian Wan department of Gastr.enter.logy, shanghai Fir.t p.op.e’s Hosp.tal, shanghai Jiaotong university, shanghai 200080, china department of Gastr.enter.logy Shanghai First People's Hospital Shanghai Jiaotong University Shanghai 200080 China

BACKGr.UND: Endoscop.c biliar. stent p.acement dur.ng the p.ocedur. of endoscop.c r.tr.gr.de cholangiop.ncr.atogr.p.y (Er.p. is p.efer.ed to p.ovide biliar. dr.inage for.unr.sectable malignant biliar. obstr.ction. Ther. is consider.ble contr.ver.y over.the use of endoscop.c sp.incter.tomy (ES) p.ior.to stent p.acement. This study aimed to deter.ine whether.ES befor. intr.ductal self-exp.nding metal stent (SEMS) p.acement affects the clinical outcome and comp.ications in p.tients with p.oximal malignant obstr.ctive biliar. diseases. METHODS: In a p.osp.ctive r.ndomized contr.lled tr.al, 82 p.tients with inop.r.ble malignant biliar. str.ctur.s wer. r.ndomly assigned to biliar. stenting gr.up. with or.without ES. r.solution of jaundice and the incidence of comp.ications including acute cholangitis, p.ncr.atitis and stent occlusion within 6 months wer. evaluated. r.SULTS: SEMSs wer. successfully dep.oyed in all p.tients, r.sulting in clinical and biochemical imp.ovement of obstr.ctive symp.oms in both gr.up.. The incidence of cholangitis was higher.in the ES gr.up.than in the non-ES gr.up.(58.5% vs 31.7%, p.0.015). The inter.al between stent p.acement and the fir.t acute cholangitis was much shor.er.in the ES gr.up.than in the non-ES gr.up.(p.0.024). The use of ES incr.ased the incidence of cholangitis (p.0.004, r.sk r.tio, 8.196). The r.te of p.st-Er.p.p.ncr.atitis after.stent p.acement was gr.ater.in the non-ES gr.up.than in the ES gr.up.(31.7% vs 9.8%, p.0.014). No significant differ.nces wer. found in the r.te of r.stenosis and the mor.ality r.te between the two ***: ES p.ior.to intr.ductal SEMS p.acement was associated with an incr.ased incidence of acute cholangitis. ES should be car.fully evaluated p.ior.to its use in p.tients with p.oximal malignant obstr.ctive biliar. diseases.

关键词： sp.incter.tomy biliar. obstr.ctions endoscop.c r.tr.gr.de cholangiop.ncr.atogr.p.y cholangitis p.ncr.atitis

Lymp.angiogenic and angiogenic micr.vessel density in human p.imar. sp.r.dic color.ctal car.inoma

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Wor.d Jour.al of Gastr.enter.logy 2008年第1期14卷 101-107页

作者： Ge Yan, Xiao-Yan Zhou, San-Jun cai, Gui-Hong Zhang, Jun-Jie p.ng, Xiang Du, department of p.thology, Cancer.Hosp.tal of Fudan university department of Oncology, shanghai Medical College, Fudan university Color.ctal Cancer.Center. Fudan university, 270 Dong’an r.ad, shanghai 200032, china department of p.thology Cancer Hospital of Fudan University Shanghai 200032 China. dx2008cn@***

AIM： To investigate the distr.bution p.tter. of lymp.atic vessels and micr.vessels in sp.r.dic color.ctal car.inoma （SCr.） and their.r.lationship.to metastasis and p.ognosis. METHODS： The lymp.atic vessel density （LVD） and micr.vessel density （MVD） in tumor.tissue obtained fr.m 132 p.tients with p.imar. SCr., including 74 with metastases and 58 without metastases, wer. evaluated by immunohistochemistr. using antibodies dir.cted against D2-40 and yon Willebr.nd factor.（vWF）. r.SULTS：（1） The lymp.atic vessels and micr.vessels at centr.l p.r.ions of SCr. often had a r.ticular.ar.hitectur. with numer.us tiny and ill-defined lumina, while those at tumor.bor.er. had lar.e and op.n lumina. The LVD and MVD wer. both obviously higher.in color.ctal cancer.p.tients with metastases than in those without （p.〈 0.001）. （2） For.each one lymp.atic vessel incr.ased, ther. was a 1.45-fold incr.ase in the r.sk of metastasis in SCr.. The sp.cificity and sensitivity of LVD in p.edicting metastasis or.non-metastasis in SCr. wer. 71.62% and 56.90%, r.sp.ctively, and the cor.esp.nding LVD was 5. For.each one micr.vessel incr.ased, ther. was a 1.11-fold incr.ase in the r.sk of metastasis in SCr.. The sp.cificity and sensitivity of MVD wer. 66.22% and 51.72%, r.sp.ctively. （3） Double labeling immunohistochemistr. showed D2-40 immunor.activity to be sp.cific for.lymp.atic vessels. （4） Univar.ate analysis indicated that high LVD, high MVD, as well as co-accounting of high LVD and high MVD wer. associated with p.tient＇s p.or.disease-fr.e sur.ival （p.ni 〈 0.05）; multivar.ate analysis indicated that co-accounting of LVD and MVD was an indep.ndent p.ognostic factor.of color.ctal cancer. CONCLUSION： D2-40 is a new sp.cific antibody for.lymp.atic endothelial cells. Lymp.ogenesis and angiogenesis ar. commonly seen in SCr., esp.cially at tumor.bor.er.. The detection of LVD and MVD at tumor.bor.er. may be useful in p.edicting metastasis and p.ognosis in p.tients with SCr., and, in p.r.icular. coaccount

关键词： Lymp.angiogenesis Angiogenesis Lymp.aticvessel density Micr.vessel density Sp.r.dic color.ctalcar.inoma Metastasis

INFLUENCE OF Cr.STALLIZATION TEMp.r.TUr. ON p.ASE Tr.NSFOr.ATION IN Ti-r.CH NiTi THIN FILMS

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中国有色金属学会会刊：英文版 1998年第2期8卷 108-113页

作者： Qi Xuan1, Guo Liang1, Jiang Bohong1, Xu Dong2, Qi Zhenzhong2 and cai Bingchu21 department of Mater.als Science,2 Infor.ation Stor.ge r.sear.h Centr.,shanghai Jiao Tong university, shanghai 200030, p. r. china

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ＩＮＦＬＵＥＮＣＥＯＦＣＲＹＳＴＡＬＬＩＺＡＴＩＯＮＴＥＭＰＥＲＡＴＵＲＥＯＮＰＨＡＳＥＴＲＡＮＳＦＯＲＭＡＴＩＯＮＩＮＴｉＲＩＣＨＮｉＴｉＴＨＩＮＦＩＬＭＳ①ＱｉＸｕａｎ１，ＧｕｏＬｉａｎｇ１，ＪｉａｎｇＢｏｈｏｎｇ１，ＸｕＤｏｎｇ２，ＱｉＺｈｅ...

关键词： NiTi alloy film cr.stallization p.ase tr.nsfor.ation

A sp.tiotemp.r.l deep.lear.ing method for.excavation-induced wall deflections

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Jour.al of r.ck Mechanics and Geotechnical Engineer.ng 2024年第8期16卷 3327-3338页

作者： Yuanqin Tao Shaoxiang Zeng Honglei Sun Yuanqiang cai Jinzhang Zhang Xiaodong p.n College of Civil Engineer.ng Zhejiang University of TechnologyHangzhou310023China Ministr. of Education(MOE)Key Labor.tor. of Soft Soils and Geoenvir.nmental Engineer.ng(SSGeo) Zhejiang UniversityHangzhou310058China Key Labor.tor. of Geotechnical and Under.r.und Engineer.ng of Ministr. of Education and department of Geotechnical Engineer.ng Tongji UniversityShanghai200092China

Data-dr.ven ap.r.aches such as neur.l networ.s ar. incr.asingly used for.deep.excavations due to the gr.wing amount of available monitor.ng data in p.actical ***,most neur.l networ. models only use the data fr.m a single monitor.ng p.int and neglect the sp.tial r.lationship. between multip.e monitor.ng ***,most models lack flexibility in p.oviding p.edictions for.multip.e days after.monitor.ng *** study p.op.ses a sequence-to-sequence(seq2seq)two-dimensional(2D)convolutional long shor.-ter. memor. neur.l networ.(S2SCL2D)for.p.edicting the sp.tiotemp.r.l wall deflections induced by deep.*** model utilizes the data fr.m all monitor.ng p.ints on the entir. wall and extr.cts sp.tiotemp.r.l featur.s fr.m data by combining the 2D convolutional layer. and long shor.-ter. memor.(LSTM)*** S2SCL2D model achieves a long-ter. p.ediction of wall deflections thr.ugh a r.cur.ive seq2seq *** excavation dep.h,which has a significant imp.ct on wall deflections,is also consider.d using a featur. fusion *** excavation p.oject in Hangzhou,china,is used to illustr.te the p.op.sed *** r.sults demonstr.te that the S2SCL2D model has sup.r.or.p.ediction accur.cy and r.bustness than that of the LSTM and S2SCL1D(one-dimensional)*** p.ediction model demonstr.tes a str.ng gener.lizability when ap.lied to an adjacent *** on the long-ter. p.ediction r.sults,p.actitioner. can p.an and allocate r.sour.es in advance to addr.ss the p.tential engineer.ng issues.

关键词： Br.ced excavation Wall deflections Deep.lear.ing Convolutional layer Long shor.-ter. memor.(LSTM) Sequence to sequence(seq2seq)

Synthesis of[(C_5H_5)Y(η~2-p.Me_2)(μ-p.Me_2)]_2 and [Y(η~2-p.Me_2)_2(μ-p.Me_2)(μ-THF)]_2 and the inser.ion of Me_2SiO into the Y-N bond

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Chinese Science Bulletin 2001年第9期46卷 723-726页

作者： ZHOU Xigeng, ZHANG Libei, r.AN r.yi, ZHANG Lixin , cai r.ifang & WENG Linhongdepartment of Chemistr., Fudan university, shanghai 200433, china State Key Labor.tor. of Elemental Or.anic Chemistr., Nankai university, Tianjin 300071, china department of Chemistr. Fudan University Shanghai China State Key Labor.tor. of Elemental Or.anic Chemistr. Nankai University Tianjin China

3,5-Dimethylp.r.zole (Hp.Me2) r.acted with (C5H5)3Y in THF to yield dinuclear.comp.exes [(C5H5)Y-(η2-p.Me2)(μ-p.Me2)]2 ( I ) and [Y(η2-p.Me2)2(μ-p.Me2)-(μ-THF)]2 (II), r.vealing a new method for.synthesizing tr.s(p.r.zolate) comp.exes of lanthanide metals. The X-r.y cr.stallogr.p.ic analysis showed that comp.ex II cr.stallizes in sp.ce gr.up.p.1 , with unit cell dimensions a = 1.0798(1), b = 1.0818(1), c = 1.1313(1) nm, a = 76.914(2)°,(B = 68.940(2)°, γ= 60.510(2)°, V = 1.0715(2) nm3, Z = 1. The final r.factor.is 0.0445. The investigation r.sults showed that Me2SiO can only be inser.ed into the Y-N (br.dging) bond of comp.ex I to for. [(C5H5)Y(η2-p.Me2)(μ-OSiMe2 p.Me2)]2 (Ⅲ), but cannot be inser.ed into the Y-N (br.dging) bond of comp.ex II due to the bulky cr.wding of the tetr.p.e br.dge str.ctur..

关键词： yttr.um p.r.zolate cr.stal str.ctur. synthesis inser.ion cyclop.ntadienyl.

A r.mar. on Chen’s Theor.m (Ⅱ)

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Chinese Annals of mathematics,Ser.es B 2008年第6期29卷 687-698页

作者： yingchun cai department of mathematics Tongji University Shanghai 200092 China

Let p.denote a p.ime and p. denote an almost p.ime with at most two p.ime factor.. The author.p.oves that for.sufficiently lar.e x,∑p.x p.2=p. 1〉1.13Cx/log^2x,wher. the constant 1.13 constitutes an imp.ovement of ... 详细信息

关键词： Chen's theor.m Sieve Mean value theor.m

New Insights into Micr.p.astic Contamination in Differ.nt Typ.s of Leachates: Abundances, Char.cter.stics, and p.tential Sour.es

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Engineer.ng 2024年第6期37卷 62-68页

作者： Lei Zhang Wentao Zhao Liang Zhang Zhenxiao cai r.iqi Yan Xia Yu Damià Bar.eló Qian Sui State Envir.nmental p.otection Key Labor.tor. of Envir.nmental r.sk Assessment and Contr.l on Chemical p.ocess School of Resources and Environmental EngineeringEast China University of Science and TechnologyShanghai 200237China State Key Labor.tor. of p.llution Contr.l and r.sour.e r.use College of Environmental Science and EngineeringTongji UniversityShanghai 200092China shanghai Institute of p.llution Contr.l and Ecological Secur.ty Shanghai 200092China p.r.inElmer Inc.Shanghai 201203China Maihai Envir.nmental p.otection Technology Co. Ltd.SuzhouJiangsu 215000China department of Envir.nmental Chemistr. Institute of Environmental Assessment and Water ResearchSpanish Council for Scientific Research(IDAEA-CSIC)Barcelona 08034Spain

Municip.l solid waste(MSW)is an imp.r.ant destination for.abandoned *** the waste disp.sal p.ocess,lar.e p.astic debr.s is br.ken down into micr.p.astics(Mp.)and r.leased into the ***,cur.ent r.sear.h only focuses on landfill leachates,and the occur.ence of Mp. in other.leachates has not been ***,her.in,the abundance and char.cter.stics of Mp. in thr.e typ.s of leachates,namely,landfill leachate,r.sidual waste leachate,and household food waste leachate,wer. studied,all leachates wer. collected fr.m the lar.est waste disp.sal center.in *** r.sults showed that the aver.ge Mp.abundances in the differ.nt typ.s of leachates r.nged fr.m(129±54)to(1288±184)Mp.p.r.icles p.r.liter.p.r.iclesL1)and the household food waste leachate exhibited the highest Mp.abundance(p.0.05).p.lyethylene(p.)and fr.gments wer. the dominant p.lymer.typ. and shap. in Mp.,*** char.cter.stic p.lymer.typ.s of Mp. in individual leachates wer. ***,the conditional fr.gmentation model indicated that the landfilling p.ocess consider.bly affected the size distr.bution of Mp. in leachates,leading to a higher.p.r.entage(>80%)of small Mp.(20–100 lm)in landfill leachates comp.r.d to other.*** the best of our.knowledge,this is the fir.t study discussing the sour.es of Mp. in differ.nt leachates,which is imp.r.ant for.Mp.p.llution contr.l dur.ng MSW disp.sal.

关键词： Micr.p.astics Landfill leachate r.sidual waste leachate Household food waste leachate Sour.e