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Compression and stretching of ring vortex in a bulk nonlinear medium

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Chinese Physics b 2024年第2期33卷 264-270页

作者：来娴静蔡晓鸥邵雅斌王悦悦 Department of basic Science Zhejiang Shuren UniversityHangzhou 310015China School of Sciences Zhejiang A&F UniversityHangzhou 311300China

We explore the nonlinear gain coupled Schrödinger system through the utilization of the variables separation method and ansatz *** employing these approaches,we generate hierarchies of explicit dissipative vector vortices(DVVs)that possess diverse vorticity *** fundamental characteristics of the DVVs are examined,encompassing amplitude profiles,energy fluxes,parameter effects,as well as linear and dynamic stability.

关键词： vector optical vortices dissipative nonlinear gain

Reliability Analysis of Clock Source of Railway Time Synchronization Network based on SPN

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Reliability Analysis of Clock Source of Railway Time Synchro...

作者： hai Ning Zhang cai-zhen Yu Yang Tang Yan LanZhou JiaoTong University

Railway time synchronization network is an important part of railway communication *** provides unified and standard time information for railway *** the timing reference signal source of railway time synchronization network,the reliability of clock source is the basis to ensure the accuracy and precision of the time information of railway time synchronization *** it is of great significance to do the study about the reliability of clock source to the realization of railway time *** accordance with failover principle,in this thesis,three levels master clock failover models were established by using Stochastic Petri Nets（SPN） first,and then the TimeNET software was used to check structure and analyze steady state of *** analysis results showed that master clocks of all levels with high reliability can meet the requirements of clock source of railway time synchronization netw ork.

关键词： Railway Time Synchronization Network Clock Source SPN Reliability Analysis

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热处理豆粕饲喂生长猪的氨基酸消化率

中国饲料 2015年第24期 32-37页

作者： González-Vega J C Kim b G htoo J K Lemme A Stein h h 伊利诺斯州立大学动物科学系乌尔班纳市61801

为测定热处理对豆粕（SbM）表观回肠消化率和标准回肠消化率（SID）的影响，本试验将常规去壳豆粕（48.5%蛋白）分成4组，一份未经额外热处理，一份在125℃下高压蒸汽处理15 min，一份在125℃下高压蒸汽处理30 min，另一份在125℃下烘... 详细信息

为测定热处理对豆粕（SbM）表观回肠消化率和标准回肠消化率（SID）的影响，本试验将常规去壳豆粕（48.5%蛋白）分成4组，一份未经额外热处理，一份在125℃下高压蒸汽处理15 min，一份在125℃下高压蒸汽处理30 min，另一份在125℃下烘箱烘干30 min。制定四种豆粕-玉米淀粉型日粮配方，且每个配方只能使用上述四种豆粕中的一种，作为每种日粮中唯一氨基酸来源。用无氮日粮配方来估算基础内源性氨基酸损失。分别在初始体重为（25.3±2.0）kg的10头阉公猪回肠末端安装一个T-型瘘管。采用5×5拉丁方设计法，将试验猪分成5个日粮处理组，5个重复处理周期。每个处理周期持续7 d，在第6天和第7天收集回肠食糜。试验结果表明，随着高压蒸汽处理时间（0~30 min）的延长，蛋白质和所有氨基酸的表观回肠消化率和标准回肠消化率呈线性降低（P＜0.01）。糠氨酸含量和豆粕样品的颜色表明高压蒸汽处理导致豆粕产生美拉德反应。然而，125℃烘箱干燥30min并未改变豆粕中蛋白和氨基酸标准回肠消化率，也没有改变SbM的糠氨酸含量（P＞0.10），且烘箱处理的样品颜色表明该样品并未受到热处理破坏。总之，热蒸汽处理时间从0 min增至30 min，高压蒸汽处理豆粕的氨基酸消化率呈线性降低，降低原因很可能是由于125℃高压蒸汽处理导致豆粕产生美拉德反应。

关键词：氨基酸消化率热处理美拉德反应猪豆粕

Numerical analysis of thermal process in the near field around vertical disposal of high-level radioactive waste

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Journal of Rock Mechanics and Geotechnical Engineering 2014年第1期6卷 55-60页

作者： h.G.Zhao h.Shao h.Kunz J.Wang R.Su Y.M.Liu CNNC Key Laboratory on Geological Disposal of high-level Radioactive Waste Beijing Research Institute of Uranium Geology(BRIUG) Federal Institute for Geosciences and Natural Resources(bGR)

For deep geological disposal of high-level radioactive waste(hLW)in granite,the temperature on the hLW canisters is commonly designed to be lower *** criterion dictates the dimension of the *** on the concept of hLW disposal in vertical boreholes,thermal process in the nearfield(host rock and buffer)surrounding hLW canisters has been simulated by using different *** results are drawn as follows:(a)the initial heat power of hLW canisters is the most important and sensitive parameter for evolution of temperaturefield;(b)the thermal properties and variations of the host rock,the engineered buffer,and possible gaps between canister and buffer and host rock are the additional key factors governing the heat transformation;(c)the gaps width and thefilling by water or air determine the temperature offsets between them.

关键词： high-level radioactive waste(hLW) Vertical disposal Engineered barrier system(EbS) Thermal conductivity properties

Patient satisfaction and penile morphology changes with postoperative penile rehabilitation 2 years after Coloplast Titan prosthesis

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Asian Journal of Andrology 2016年第5期18卷 754-758页

作者： Michael b Pryor Rafael Carrion Run Wang Gerard henry Regional Urology 255 Bert Kouns Industrial Loop Shreveport LA USA Department of Urology University of South Florida Tampa Florida USA Department ofUrology University of Texas School of Medicine at Houston and MD Anderson Cancer Center Houston TX USA.

A common complaint after inflatable penile prosthesis surgery is reduced penile length. We previously reported how using the Coloplast Titan inflatable penile prosthesis with aggressive new length measurement technique （NLMT） coupled with postoperative IPP rehabilitation of the implant for 1-year helped to improve patient satisfact on and erectile peni e measurements Th s is a 2 years follow-up of a prospective, three-center, study of 40 patients who underwent Titan prosthesis placement, With new length measurement technique for erectile dysfunction. Patient instructions were to inflate daily for 6 months and then inflate maximally for 1-2 h daily for 6-24 months. Fifteen penile measurements were taken before and immediately after surgery and at follow-up visits. Measurement changes were improved at 24 months as compared to immediately postoperative and at 12 months. 67.8% of subjects were satisfied with their length at 2 years, and 77% had perceived penile length that was longer （30.8%） or the same （46.2%） as prior to the surgery. 64.3% and 17.9% of subjects had increased and unchanged satisfaction, respectively, with penile length as compared to prior to penile implant surgery. All but one subject （96.5%） was satisfied with the overall function of his implant. This study suggests using the Coloplast Titan with aggressive cylinder sizing, and a postoperative penile rehabilitation inflation protocol can optimize patient satisfaction and erectile penile measurements at 2 years postimplant.

关键词： erectile dysfunction penile implant surgery penile prosthesis

Two New Sesquiterpene Lactones from the Volatile Oil of Centipeda minima

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Two New Sesquiterpene Lactones from the Volatile Oil of Cent...

中国化学会第八届天然有机化学学术研讨会

作者： Peng Wu~(a,b) Ying Wang~(a,b) Xiao-Li Zhang~(a,b) Xiao-Qi Zhang~(a,b) Wen-cai Ye~(a,b) Yao-Lan Li~(a,b*) a Institute of Traditional Chinese Medicine & Natural Products,College of Pharmacy,Jinan University, Guangzhou,China b Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drug Research,Guangzhou 510632,China c College of Pharmacy,Jinan University,Guangzhou,China

＜正＞Two new guaiane-type sesquiterpene lactones,minimolide A-2α-O-angelate（1）and minimolide A-2α-O-isobutyrate（2）,along with six known guaiane-or pseudoguaiane-type sesquiterpene lactones,were isolated from th...

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Comparative study of hydrogen storage by adsorption on formed and unformed activated carbon

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Comparative study of hydrogen storage by adsorption on forme...

第九届全国氢能学术会议

作者： Q.R.Zheng,Q.R.Yang,Z.X.cai,h.F.Liao,C.Y.Zheng Jimei University,China

＜正＞Adsorption equilibrium and thermal effect in dynamic storage of hydrogen on formed and unform activated carbon were studied experimentally and *** isotherms were measured at the temperature-pressure range of 113-293 K and 0-12.5 MPa,charge and discharge tests of the storage system were performed under pressures 10.5 MPa and 5.2 MPa

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Electronic structure analysis of C-h bond oxidation by high-valent iron complexes

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Electronic structure analysis of C-H bond oxidation by high-...

中国化学会第十二届全国量子化学会议

作者： Shengfa Ye cai-Yun Geng bhaskar Mondal Frank Neese Max-Planck Institute for Chemical Energy Conversion

high-valent iron-oxo species are implicated as key intermediates to selectively functionalize target C-h bonds in the catalytic cycles of a range of O2-activating iron *** reactions are typically performed under ambient conditions with high efficiency and ***,elucidation of the enzymatic reaction mechanism at the atomic level should aid in designing of novel bio-inspired catalysts that are able to oxidize unactivated C-h bond under mild chemical ***,we carried out systematic studies of hydroxylation of alkane C-h bond by high-valent iron-oxo and–nitrido complexes.1 We first evaluated all feasible reaction channels for alkane hydroxylation by iron（IV）oxo complexes.2 Analysis of the electronic structure changes along the key reaction coordinates reveals that the intrinsic oxidant is an iron（Ⅲ）oxyl species,which is generated by lengthening of the Fe-oxo bond.3,4 Then we extend our analysis to rationalize different reactivity of iron（IV/V/VI）-oxo and–nitrido complexes toward C-h bond oxidation5 and diiron systems.6

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化学生物耦合法制备D-赖氨酸

现代化工 2007年第5期27卷 32-34页

作者：刘毅焦庆才印晓星徐州医学院药学系南京大学生命科学学院医药生物技术国家重点实验室江苏南京210093 南京大学生命科学学院医药生物技术国家重点实验室

L-赖氨酸经化学消旋反应后,应用蜂房哈夫尼菌(hafnia alvei)AS1.1009对其进行生物转化,可制备D-赖氨酸,理论收率为56.6%。确定了在100℃下,以1.0mol/L氢氧化钠水溶液,用0.10摩尔比的水杨醛催化L-赖氨酸在4h内消旋,反应活化能为62187.86J... 详细信息

L-赖氨酸经化学消旋反应后,应用蜂房哈夫尼菌(hafnia alvei)AS1.1009对其进行生物转化,可制备D-赖氨酸,理论收率为56.6%。确定了在100℃下,以1.0mol/L氢氧化钠水溶液,用0.10摩尔比的水杨醛催化L-赖氨酸在4h内消旋,反应活化能为62187.86J/mol;对生物转化中赖氨酸脱羧酶性质研究结果表明该酶最适ph为8.0,最适温度为37℃,吐温-80质量浓度0.5g/L,菌体质量浓度10g/L,底物质量浓度为30g/L时,最高比酶活为3840U。在此优化条件下转化时间为12h。

关键词： D-赖氨酸脱羧酶消旋生物转化