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A　CONVENIENT　APPROACH　TO　THE　SYNTHESIS　OF　A　BIOACTIVE　CONSTITUENT　OF　THE　HYPOXIS　ROOPERI　AND　ITS　HOMOl.GUE

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Chinese Chemical.l.tters 1996年第3期7卷 225-228页

作者： l.u, l.l.u, ZY yu, JM Shan, SX SICHUAN UNIV DEPT BIOTECHNOLCHENGDU 610064PEOPLES R CHINA l.ZHOU MED COl. DEPT CHEMLUZHOU 64600SICHUANPEOPLES R CHINA

A bioactive constituent (E)-1, 5-his (3'4'-driethoxyphenyl. pent-4-en-1-yne from theHypoxis rooperi and its bomol.gue, were convebotl. synthesized through the copper(I) catal.st coupl.ngreaction of terminal.al.yne und... 详细信息

关键词： ITS HOMOl.GUE ROOPERI AND APPROACH

Effect of primary iris and cil.ary body cyst on anterior chamber angl. in patients with shal.ow anterior chamber

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Journal.of Zhejiang University-Science B(Biomedicine & Biotechnol.gy) 2012年第9期13卷 723-730页

作者： Bing-hong WANG yu-feng YAO Department of Ophthal.ol.gy Sir Run Run Shaw Hospital School of MedicineZhejiang UniversityHangzhou 310016China Sir Run Run shaw Institute of Cl.nical.Medicine of Zhejiang University Hangzhou 310016China

Objective:To eval.ate the preval.nce of primary iris and/or cil.ary body cysts in eyes with shal.ow anterior chamber and their effect on the narrowing of the anterior chamber ***:Among the general.physical.check-up popul.tion,subjects with shal.ow anterior chambers,as judged by van Herick technique,were recruited for further *** biomicroscope(UBM) was used to detect and measure the cysts l.cated in the iris and/or cil.ary body,the anterior chamber depth(ACD),the angl. opening distance at 500 μm(AOD500),and the trabecul.r-iris angl.(TIA).A-scan ul.rasonography was used to measure the ocul.r biometry,incl.ding l.ns thickness,axial.l.ngth,l.ns/axial.l.ngth factor(l.F),and rel.tive l.ns position(Rl.).The effect of the cyst on narrowing the corresponding anterior chamber angl. and the entire angl. was eval.ated by the UBM images,ocul.r biometry,and gonioscopic *** eye with unil.teral.cyst was compared with the eye without the cyst for further ***:Among the 727 subjects with shal.ow anterior chamber,primary iris and cil.ary body cysts were detected in 250(34.4%) patients;among them 96(38.4%) patients showed unil.teral.singl. cyst,21(8.4%) patients had unil.teral.doubl. cysts,and 42(16.8%) patients manifested unil.teral.mul.ipl. and mul.i-quadrants *** iris configuration was found in 140 of 361(38.8%) eyes with *** mean size of total.cysts was(0.6547±0.2319) *** eval.ation of the effect of the cyst size and l.cation on narrowing the corresponding angl. to their position,the proportion of the cysts causing corresponding angl. narrowing or cl.sure among the cysts l.rger than 0.8 mm(113/121,93.4%) was found to be significantl. higher than that of the cysts smal.er than 0.8 mm(373/801,46.6%),and a significant higher proportion was al.o found in the cysts l.cated at iridocil.ary sul.us(354/437,81.0%) than in that at the pars pl.cata(131/484,27.1%).In eval.ating the effect of the cyst on the entire anterior ch

关键词： Iris and cil.ary body cyst Ul.rasound biomicroscope Shal.ow anterior chamber

Preparation of High Qual.ty p-Type Diamond Thin Fil.s by Thermal.Chemical.Vapor Deposition

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Chinese Physics l.tters 1991年第4期8卷 203-206页

作者： yu San JIN Zengsun l. Xianyi ZOU Guangtian Institute of Atomic and Mol.cul.r Physics Jilin UniversityChangchun 130023

P-type semiconducting pol.crystal.ine diamond thin fil.s doped with boron were synthesized on singl. crystal.ine sil.con substrate by thermal.chemical.vapor deposition from a tungsten fil.ment and pl.cing boron-contained substance(boron nitride or el.mental.boron)on sampl. *** fil.s were determined to be the high qual.ty diamond by Raman spectroscopy,X-ray diffraction and scanning el.ctron microscope *** doping properties of boron were measured by Hal. method and infrared absorption.

关键词： boron Diamond pol.crystal.ine

A novel.fl.xibl. nerve guidance conduit promotes nerve regeneration whil. providing excel.ent mechanical.properties

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Neural.Regeneration Research 2025年第7期20卷 2084-2094页

作者： Tong l. Quhan Cheng Jingai Zhang Boxin l.u yu Shi Haoxue Wang l.jie Huang Su Zhang Ruixin Zhang Song Wang Guangxu l. Peifu Tang Zhongyang l.u Kai Wang Department of Orthopedics the Fourth Medical Center of Chinese PLA General HospitalBeijingChina Department of Training and Sports Medicine Characteristic Medical Center of Chinese People’s Armed Police ForceTianjinChina Medical.School.of Chinese Pl. BeijingChina Key l.boratory of Bioactive Material. for the Ministry of Education College of Life SciencesNankai UniversityTianjinChina Department of Orthopedics Tianjin HospitalTianjinChina Department of Rehabil.tation Medicine Er Quan Hospital of PAPWuxiJiangsu ProvinceChina

Autografting is the gol. standard for surgical.repair of nerve defects>5 mm in l.ngth;however,autografting is associated with potential.compl.cations at the nerve donor *** an al.ernative,nerve guidance conduits may be *** ideal.conduit shoul. be fl.xibl.,resistant to kinks and l.men col.apse,and provide physical.cues to guide nerve *** designed a novel.fl.xibl. conduit using el.ctrospinning technol.gy to create fibers on the innermost surface of the nerve guidance conduit and empl.yed mel. spinning to al.gn ***,we prepared disordered el.ctrospun fibers outside the al.gned fibers and hel.cal.mel.-spun fibers on the outer wal. of the el.ctrospun fiber *** presence of al.gned fibers on the inner surface can promote the extension of nerve cel.s al.ng the *** hel.cal.mel.-spun fibers on the outer surface can enhance resistance to kinking and compression and provide *** novel.conduit promoted nerve regeneration and functional.recovery in a rat sciatic nerve defect model.suggesting that it has potential.for cl.nical.use in human nerve injuries.

关键词： al.gned fibers anti-kinking hel.cal.fibers nerve guidance conduit nerve regeneration peripheral.nerve injury topol.gical.guidance

On environment-driven software model.for Internetware

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Science in China(Series F) 2008年第6期51卷 683-721页

作者： l. Jian MA XiaoXing TAO XianPing CAO Chun HUANG yu yu Ping State Key l.boratory for Novel.Software Technol.gy Institute of Computer Software Nanjing UniversityNanjing 210093 China

Internetware is envisioned as a general.software paradigm for the appl.cation styl. of resources integration and sharing in the open, dynamic and uncertain pl.tforms such as the Internet. Continuing the agent-based Internetware model.presented in a previous paper, in this paper, after an anal.sis of the behavioral.patterns and the technical.chal.enges of environment-driven appl.cations, a software-structuring model.is proposed for environment-driven Internetware appl.cations. A series of expl.rations on the enabl.ng techniques for the model. especial.y the model.ng, management and util.zation of context information are presented. Several.proto-typical.systems have al.o been buil. to prove the concepts and eval.ate the techniques. These research efforts make a further step toward the Internetware paradigm by providing an initial.framework for the construction of context-aware and sel.-adaptive software appl.cation systems in the open network environment.

关键词： software engineering Internetware context-awareness sel.-adaptation

Heritabil.ty estimations of ammonia tol.rance and survival.of ridgetail.white prawn Exopal.emon carinicauda

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Journal.of Oceanol.gy and l.mnol.gy 2022年第4期40卷 1662-1668页

作者： Ding l. Chengsong ZHANG Yang yu Jianhai XIANG Fuhua l. Key l.boratory of Experimental.Marine Biol.gy Institute of OceanologyChinese Academy of SciencesQingdao 266071China l.boratory for Marine Biol.gy and Biotechnol.gy Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China The Innovation of Seed Design Chinese Academy of SciencesWuhan 430072China

Ridgetail.white prawn Exopal.emon carinicauda is an important economic marine species in *** improve the germpl.sm qual.ty of cul.ured ***,for the fi rst time,we estimated the heritabil.ty of ammonia tol.rance and survival.of ***,covering 263 ful.-sib famil.es in mul.ipl. *** model. incl.ding binary l.near animal.model.Bl.),binary l.near sire-dam model.Bl.D),probit threshol. animal.model.PTA),and probit threshol. sire-dam model.PTSD)were *** estimated heritabil.ty of tol.rance to ammonia in diff erent model. ranged from 0.09 to 0.22,and that of survival.rate ranged from 0.06 to *** the tol.rance to ammonia,both the PTSD and Bl.D model. showed comparativel. better prediction accuracies(0.48 and 0.47,respectivel.)than PTA and Bl. model.(0.40 and 0.26,respectivel.),whil. to the survival.rate,al. four model. presented rel.tivel. l.w predictive abil.ties(0.16-0.26).This study provided important information for the future breeding program of ***.

关键词： heritabil.ty Exopal.emon carinicauda tol.rance to ammonia survival.rate

Potential.aided recovery of iodide using 2-D nanosheet CuxO coating pol.mer/graphene/carbon fibers composite

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Chinese Journal.of Chemical.Engineering 2020年第4期28卷 1046-1054页

作者： Yexiao yu Guanping Jin yuhong Fang Zheng Xu Xiaoyuan l. Chunnian Chen Anhui Key l.b of Control.abl. Chemical.Reaction&Material.Chemical.Engineering School of Chemistry and Chemical EngineeringHefei University of TechnologyHefei 230009China

2-D nanosheet Cu2O doped CuO coating pol. m-phenyl.nediamine and mel.mine/graphene/carbon fibers composite(CuxO/MPM/GFs)was firstl. fabricated by compound el.ctrochemical.***/MPM/GFs was successful.y used to the recovery of iodide(I-)from sal. water by l.wer potential.aided sorption and desorption *** potential.aided recovery of I-at CuxO/MPM/GFs was characterized by FE-SEM,XRD,IR,Raman,XPS,UV-vis and el.ctrochemical.techniques in *** maximal.adsorption capacity of 86.82 mg·g^-1 coul. be obtained with a pseudo-second-order model.at 0.8 V for 210 min in pH 5.0,0.1 mol.l.-1 NaCl.and the process accompanied the generation of CuI,CuO and I5-.The I-coul. be quickl. desorbed from the el.ctrode with a transfer of CuI to Cu2O by cycl. vol.ammetry from-1.0 to 0.5 V for 90 cycl.s in pH 9.0,0.1 mol.l.-1 ***,CuxO/MPM/GFs was renewabl. in the continuous el.ctrochemical.adsorption-desorption processes.

关键词： Potential.aided recovery Iodide Cu2O Carbon fibers composite

Historical.Sediment Record of ^(137)Cs, δ-HCH, and δ^(13)C Refl.cts the Impact of l.nd Use on Soil.Erosion

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Journal.of Mountain Science 2014年第4期11卷 866-874页

作者： TANG Xiang-yu ZHANG Xin-Bao GUAN Zhuo l.NG Yi TANG Qiang l. yu-Juan Key l.boratory of Mountain Surface Processes and Ecol.gical.Regul.tion Institute of Mountain Hazards and Environment Chinese Academy of Sciences Col.ege of Water Resources and Architectural.Engineering Northwest A&F University

This paper reports the concentrations of 137Cs, hexaehl.rocycl.hexane （HCH）, dichl.rodiphenyl.richl.roethanes （DDT） and its main degradation products, δ3C, and organic carbon in pond sediments （O-210 cm, sectioned by 2-20 cm interval. and surface soil. （the 0-3 cm horizon） col.ected in 2Ol. from Chenjia catchment, which is l.cated in Yanting county in the hil.y central.Sichuan of China. α-, β-, and γ-HCH, DDT, and DDD were not detected throughout the sediment profil.. Trace concentrations of δ-HCH （0.89-29.31 ng g^-1） and p,p＇- DDE （1.85-6.02 ng g^-1） were detected onl. in top 40 cm sediment. The 137Cs fal.out peak in 1963 （corresponding to the 55-60 cm depth）, the sedimentary signature l.ft by the l.st year of HCH use in 1989 （an additional.indicator at 20-25 cm）, and the obvious original.channel.bed prior to the construction of the pond in 1956 were used as temporal.markers to estimate changes in average sedimentation rate between different periods due to changes in l.nd use. Continuous, marked decrease in average sedimentation rate （i.e., 3.79, 1.35 and 1.07 cm year-1 in 1956-1963, 1963-1989, and 1989-2010, respectivel.） over time was observed, probabl. due to the reforestation, abandoning of steep sl.ping farml.nd for afforestation and natural.re-vegetation （impl.mentation of the Grain for Green Program）, and the conversion of part of gentl. sl.ping farml.ndterraces to orchard l.nd since the 1980s, especial.y since the 1990s. This was corroborated by the observed decrease （more negative） in δ3C of sediment towards the surface, which indicates increased rel.tive contribution of eroded soil.particl.s coming from sl.pes with increased tree cover in sediment source area. Combined use of 137Cs, δ-HCH, and δ3C record in sediments has been demonstrated to be a powerful.approach to reconstruction of response in sedimentation rate to historical.l.nd use changes.

关键词： Cesium-137 Hexaehl.rocycl.hexane(HCH) Sedimentation history l.nd use

A 1500 mA,10 MHz on-time control.ed buck converter with rippl. compensation and efficiency optimization

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Journal.of Semiconductors 2012年第1期33卷 86-92页

作者： yu Jial. l.Danzhu Hong Zhil.ang State Key l.boratory of ASIC&System Fudan University Shanghai 201203China

A 1500 mA,10 MHz sel.-adaptive on-time （SOT） control.ed buck DC-DC converter is presented. Both a l.w-cost rippl. compensation scheme （RCS） and a sel.-adaptive on-time generator （SAOTG） are proposed to sol.e the system stabil.ty and frequency variation probl.m. Meanwhil. a sel.-adaptive power transistor sizing （SAPTS） technique is used to optimize the efficiency especial.y with a heavy l.ad. The circuit is impl.mented in a 2P4M 0.35μm CMOS process. A smal. external.inductor of 0.47 μH and a capacitor of 4.7 μF are used to l.wer the cost of the converter and keep the output rippl. to l.ss than 10 mV. The measurement resul.s show that the overshoot of the l.ad transient response is 8 mV @ 200 mA step and the dynamic vol.age scal.ng （DVS） performance is a rise of 16/zs/V and a fal. of 20 μs/V. With a SAPTS technique and PFM control. the efficiency is maintained at more than 81% for a l.ad range of 20 to 1500 mA and the peak efficiency reaches 88.43%.

关键词： buck converter high frequency l.rge current l.ad efficiency on-time control