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ENZYME REACTION IN AQUEguB-ORGANIC BYSTEM —KINETIC RESOLUTION OP RACEMIC OXIRANECARBOXYLIC ESTERS WITH LIPASE

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Chinese Chemical Letters 1992年第3期3卷 173-174页

作者： jian Xing gu Zu Yi LI Shanghai Institute of Organic Chemistry Academia Sinica345 Lingling LuShanghai 200032

The chiral oxiranecarboxylic acids or esters 2a-e were obtained with lipase (CCL) in aqueous-organic *** ee and the absolute configurations of the products were determined.

关键词： Miller Co OP KINETIC RESOLUTION OP RACEMIC OXIRANECARBOXYLIC ESTERS WITH LIPASE ENZYME REACTION IN AQUEguB-ORGANIC BYSTEM

NB/T 11554—2024要点解读及水风光储多能互补标准化工作回顾

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中国标准化 2024年第20期 127-132页

作者：高洁顾建伟朱方亮刘向阳水电水利规划设计总院

This paper reviews the development modes and projects demonstration of multi-energy complementary integrated energy,and the classiﬁcation and guideline for the multi-energy complementary system of power supply in the 13th Five-Year Plan *** on the review of the plan of the two major hydro/wind/solar hybrid energy bases in the 14th Five-Year Plan period,and the preliminary results of the renewable energy integration planning work in national major river basins,as well as the plan implementation of pilot basin and the acceleration of concerned projects in the industrial chain,it sorts out the progress of the work for hydro/wind/solar/storage renewable energy coordinated development as well as the necessity and points of the standardization *** analyzes the current situation and the requirements for standards on hydro/wind/solar/storage coordinated development,interprets the key points of each stage such as planning,design,operation and management during the life cycle in the newly released Technical code for hydro/wind/solar/storage renewable energy hybrid development project,and proposes the pioneering and guiding for the standardization of hydro/wind/solar/storage coordinated development.

关键词： hydro/wind/solar/storage hydro/wind/solar/storage hybrid development project hydro/wind/solar/storage multi-energy complementary

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Transurethral assistant transumbilical laparoendoscopic single-site radical prostatectomy

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Asian Journal of Andrology 2017年第4期19卷 473-476页

作者： Chen Zhu jian Su Lin Yuan Yang Zhang Zi-Jie Lu Yun Su Ning-Hong Wang Xiao-jian gu Qing-Yi Zhu Department of Urology Affiliated Hospital of Nanjing University of Traditional Chinese Medicine Nanjing China.

The laparoendoscopic single-site （LESS） technique is the latest technical innovation in laparoscopic surgery to undergo exponential development in urology. This study undertaken to illustrate our initial experience LESS radical prostatectomy （RP） and analyze early outcomes. Nineteen patients diagnosed with prostate cancer underwent LESS-RP in our institute. The patients were divided into two groups： conventional LESS and transurethral assistant LESS. Preoperative, perioperative, postoperative, pathologic, and functional outcomes data were assessed. With the help of a transurethral assistant, the mean operation and anastomosis time were decreased markedly. No focal positive margins were encountered. No prostate-specific antigen recurrence was detected 1 month postoperatively. Complete continence recovery （no pad） was observed in 32% of the patients at 1 month after the operation. No intraoperative and postoperative complications were reported, LESS-RP is a feasible and effective surgical procedure for treatment of prostate cancer. Moreover, transurethral assistant LESS could reduce the difficulty of LESS-RP and shorten the operation time.

关键词： laparoendoscopic single-site surgery prostate cancer transurethral assistant

Tensor force effect on the exotic structure of neutron-rich Ca isotopes

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Chinese Physics C 2019年第11期43卷 67-76页

作者： Yan-Zhao Wang Xue-Dou Su Chong Qi jian-Zhong gu Department of Mathematics and Physics Shijiazhuang Tiedao UniversityShijiazhuang 050043China Institute of Applied Physics Shijiazhuang Tiedao UniversityShijiazhuang 050043China Department of Physics Royal Institute of Technology(KTH)SE-10691 StockholmSweden China Institute of Atomic Energy P.O.Box 275(10)Beijing 102413China School of Physics and Nuclear Energy Engineering Beihang UniversityBeijing 100191China

The structure of neutron-rich Ca isotopes is studied in the spherical Skyrme-Hartree-Fock-Bogoliubov(SHFB)approach with SLy5,SLy5+T,and 36 sets of TIJ *** calculated results are compared with the available experimental data for the average binding energies,two-neutron separation energies and charge *** is found that the SLy5+T,T31,and T32 parametrizations reproduce best the experimental properties,especially the neutron shell effects at N=20,28 and 32,and the recently measured two-neutron separation energy of *** calculations with the SLy5+T and T31 parametrizations are extended to isotopes near the neutron drip *** neutron giant halo structure in the very neutron-rich Ca isotopes is not seen with these two ***,depleted neutron central densities are found in these *** analyzing the neutron mean-potential,the reason for the bubble-like structure formation is given.

关键词： spherical SHFB approach tensor force neutron-rich Ca isotopes neutron giant halo bubble structure

High-resolution coupling of stratigraphic'sweet-spot'lithofacies and petrophysical properties:A multiscale study of Ordovician Goldwyer Formation,Western Australia

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Petroleum Science 2023年第3期20卷 1312-1326页

作者： Yu-jie Yuan Reza Rezaee jian-Wei gu Song-Tao Wu Emad A.Al-Khdheeawi Jun Wang Bin Pan School of Earth Sciences Yunnan UniversityKunmingYunnan650500China Western Australian School of Mines:Minerals Energy and Chemical EngineeringCurtin UniversityPerthWestern AustraliaAustralia School of Petroleum Engineering China University of Petroleum(East China)QingdaoShandong266580China Research Institute of Petroleum Exploration and Development CNPCBeijing100083China National Energy of Tight Oil and Gas R&D Center Bejing100083China Petroleum Technology Department University of Technology-IraqBaghdad10066Iraq School of Civil and Resource Engineering University of Science and Technology BeijingNo.30Xueyuan RoadBeijing10083China State Key Laboratory of Coal Mine Disaster Dynamics and Control Chongqing UniversityChongqing400044China

The identification of stratigraphic'sweet-spot'interval is significant in oil and gas formation ***,formation evaluation in macroscopic-scale merely provides low resolution and limited infor-mation,thus may lead to uncertainties in resource *** accurately identify the'sweet-spot'intervals amongst heterogeneous lithofacies,we conducted a very high-resolution and quantitative analysis from in-situ macroscopic scale to laboratory microscopic scale on the Goldwyer formation of Canning Basin,Western *** comprehensive advanced well logging and slim-compact micro imager(SCMI)technologies were synthetically applied in couple with the laboratory nanoscaled *** results unveiled an extraordinarily large lithofacies heterogeneity between different rock intervals,with distinguished features shown in Goldwyer Ⅰ,Ⅱ,and Ⅲ *** most favorable lithofacies is recognized as the laminated argillaceous thermally-matured organic matter(OM)-rich mudstone,which is widely developed in Goldwyer Ⅲ as the major attributor to'sweet-spot'*** Ⅱ is exclusively characterized by thick mudstone intervals(94.4%),interbedded with thin calcareous mudstones(5.5%),corresponding to a depositional environment of low-energy distal section of the outer ramp ***,the most favorable lithofacies in'sweet-spot'intervals develop numerous OM-/mineral nanopores for hydrocarbon ***-rich lithofacies develops abundant inter-particle pores from 2 to 17 nm that mainly contribute to pore volume for free gas storage ***-rich lithofacies with higher maturity have OM-pores with good connectivity,bearing large specific surface area that is beneficial for adsorbed gas capacity.

关键词： Shale Nanopore structure Pore characterization Lithofacies

基于混合自然启发算法的电网自适应过流保护优化研究

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自动化技术与应用 2024年第9期43卷 34-37,46页

作者：李正新陈斗沙李波顾健罗琨贵州电网有限责任公司毕节供电局贵州毕节551700

电力系统继电保护是现代能源电网中确保系统安全的一项重要任务。针对电网自适应保护和保护优化进行深入研究,提出一种新型聚类概念的自适应保护实现方法。采用混合自然启发算法进行保护设置优化,其中自适应保护用于应对电网系统拓扑变... 详细信息

电力系统继电保护是现代能源电网中确保系统安全的一项重要任务。针对电网自适应保护和保护优化进行深入研究,提出一种新型聚类概念的自适应保护实现方法。采用混合自然启发算法进行保护设置优化,其中自适应保护用于应对电网系统拓扑变化,优化技术用于计算保护定值,进而配合电网备用保护提供更快的故障清除。设计的测试系统采用改进IEEE14总线系统,对故障清除性能进行了测试验证,该算法相较传统算法性能优异,且自适应过电流保护的聚类方法能够有效减少继电器设置组的数量。

关键词：混合自然启发算法聚类保护定值自适应保护

Chip-Level MMSE Equalization for CDMA Downlink

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The Journal of China Universities of Posts and Telecommunications 2005年第2期12卷 82-86页

作者： ZHANG Yi gu jian YANG Da-cheng Beijing University of Posts and Telecommunications Beijing 100876 P.R. China

This work is focused on the structure design of MMSE linear equalizers in the downlink of CDMA-based multi-user communication systems. Previous work was mostly focused on the performance comparison between ZF and MMSE linear equalizers and the conclusion is that the performance based on MMSE criterion is much better than that based on ZF one. In this paper, we only discuss MMSE equalizer and a new block structure of MMSE linear equalizer is derived from the traditional structure of this kind of equalizer. Furthermore, a block MMSE linear equalizer is improved through using the overlap-save technique. Simulation results shaw that the average performance of improved block MMSE linear equalizers is better than those of the block MMSE equalizers and traditional MMSE equalizers. At the same time, the computation complexity of all these MMSE equalizers is given. It is shown that the comple：rity of proposed block MMSE equalizers is lower than that of the traditional equalizers with optimal delay, D, when the length of the filter in traditional MMSE equalizers equals the block size of block MMSE equalizers.

关键词： MMSE ZF equalization chip-level overlap

Liquid-phase epitaxial layer by layer brushing fabrication of metalorganic frameworks films

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Nano Research 2024年第6期17卷 5698-5704页

作者： Li-Mei Chang Rui Zhai Zhi-Zhou Ma jian-Dong Huang Zhi-Gang gu jian Zhang College of Chemistry Fuzhou UniversityFuzhou 350108China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China University of Chinese Academy of Sciences Beijing 100049China

Development of metal-organic framework(MOF)films is of great importance to expand their ***,we report a facile and universal method of liquid-phase epitaxial(LPE)layer by layer(LBL)brushing approach for fabricating MOF films on various substrates in a high-throughput *** MOF films preparation method offers a great prospective to cost-effectively construct films with short preparation time and little reagent ***,this LBL brushing approach has been implemented successfully to assemble various MOF films,including HKUST-1,zeolitic imidazolate framework-8(ZIF-8),Cu(bdc),and Cu_(2)(L)_(2)P(L=bdc,ndc,and cam;P=dabco and bipy).Afterwards,the classic MOF HKUST-1 and ZIF-8 films were grown on sensor chip electrode and porous fiber support for good volatile organic compounds(VOCs)selective sensing and water purification *** study demonstrates that this LBL brushing preparation method can be employed to synthesize various MOF films with a variety of characteristics to realize their sensing and separation applications.

关键词： metal-organic framework porous materials layer by layer fabrication film

Karyomorphology of three species in Dipentodon(Dipentodontaceae),Perrottetia(Celastraceae),and Tapiscia(Tapisciaceae) of the order Huerteales and their phylogenetic implications

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Journal of Systematics and Evolution 2009年第4期47卷 291-296页

作者： Jing YANG jiang-Chong WU Zhi-jian gu~* (Kunming Botanical Garden,Kunming Institute of Botany,Chinese Academy of Sciences,Kunming 650204,China) (Kunming Botanical Garden Kunming Institute of Botany Chinese Academy of Sciences Kunming 650204 China)

The karyomorphology of three species in Dipentodon(Dipentodontaceae),Perrottetia(Celastraceae),and Tapiscia(Tapisciaceae),namely Dipentodon sinicus,Perrottetia racemosa,and Tapiscia sinensis,was investigated in the present *** molecular research has discovered close relationships among these three genera, which has led to the establishment of the order Huerteales with Perrottetia being placed in Dipentodontaceae. Herein we report the chromosome numbers of *** and P racemosa for the first time,and present their karyotype formulas as 2n = 34 = 22 sm+12 st(***),2n = 20 = 11 m+9 sm(***),and 2n = 30 = 22 m(2SAT)+8sm(***).Asymmetry of their karyotypes is categorized to be Type 3B in ***,Type 2A in ***,and Type 2A in *** of the species shows special cytological features. Compared with Perrottetia,Dipentodon has a different basic chromosome number,a higher karyotype asymmetry, and different karyomorphology of its interphase nuclei,mitotic prophase,and ***,on the basis of these results,we have reservations regarding the suggestion of placing Dipentodon and Perrottetia together in the family Dipentodontaceae.

关键词： chromosome number Dipentodon karyomorphology Perrottetia phylogenetic relationship Tapiscia.