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改进NSGA-III求解高维多目标绿色柔性作业车间调度问题

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系统仿真学报 2024年第10期36卷 2314-2329页

作者：徐宜刚陈勇王宸彭运贤湖北汽车工业学院机械工程学院湖北十堰442000 中国工程科技十堰产业技术研究院湖北十堰442000 上海大学上海市智能制造与机器人重点实验室上海200072 东风专用汽车有限公司湖北十堰442000

为解决NSGA-III在求解上述模型存在初始解质量差与局部搜索效率低的问题,提出一种改进的NSGA-III(NSGA-III-TV)。基于MSOS编码,分别对OS和MS染色体采取不同混合初始化策略以提高初始解质量;基于关键路径,采用改进N6邻域结构进行邻域搜索... 详细信息

为解决NSGA-III在求解上述模型存在初始解质量差与局部搜索效率低的问题,提出一种改进的NSGA-III(NSGA-III-TV)。基于MSOS编码,分别对OS和MS染色体采取不同混合初始化策略以提高初始解质量;基于关键路径,采用改进N6邻域结构进行邻域搜索,有效缩短完工时间并降低搜索盲目性,同时采用3种有效变异算子扩大算法搜索空间,提高后期收敛能力。结果表明:NSGA-III-TV在求解高维多目标柔性作业车间调度问题上具有较好的性能以及实用性,为企业生产制造车间的智能绿色转型升级提供了有力支持。

关键词：绿色柔性作业车间调度高维多目标优化关键路径变邻域搜索

OSCILLATION CRITERIA FOR CERTAIN EVEN ORDER NEUTRAL DIFFERENTIAL EQUATIONS

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Annals of Differential Equations 2010年第3期26卷 259-266页

作者： Xianyong Huang (Dept. of Math., Guangdong institute of Education, guangzhou 510303)Zhiting xu (School of Mathematical sciences, South china Normal University, guangzhou 510631)

Using the generalized Riccati technique and the averaging technique, we establish several oscillation criteria for certain even order neutral differential equation. The results obtained in this paper extend and improv... 详细信息

关键词： even order neutral differential equation oscillation generalized partial Riccati transformation integral averaging technique

Prepartion and identification of activity of anti-HPV-6b/11E1 universal ribozyme——Rz1198 in vitro

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Asian Journal of Andrology 1999年第4期1卷 195-201页

作者： De-Zhong LIU You-Xin JIN Hua HOU Yang-Zhong HUANG Guang-Cai YANG Qian xu State Key Laboratory of Molecular Biology, Shanghai institute of Biochemistry, chinese academy of sciences, Shanghai 200031, china Department of Biochmeistry, First Military Medical University, guangzhou 510515, china State Key Laboratory of Molecular Biology Shanghai Institute of Biochemistry Chinese Academy of Sciences Shanghai 200031 China Department of Biochemistry First Military Medical University Guangzhou 510515 China

Aim: To study the preparation and cleavage activity of Rz1196 directed against HPV-6bE1 and HPV-11E1 (HPV-6b/11E1) transcripts in vitro. Methods: HPV-6b/11E1 gene fragments were cloned into T-vector under the control ofT7 promoter, ～(32)P-labeted HPV-6b/11E1 transcripts as target-RNAs were transcribed in vitro and purified by ***1198 gene designed as a universal ribozyme for both HPV-6b/11E1 transcripts was cloned into vector p1.5 between5'-cis-Rz and 3'-cis-Rz. a2P-labeled Rzl198 transcript was gel-purified, incubated with target-RNAs at different condi-tions and autoradiographed after denaturing gel-electrophoresis. Results: Rz1198 was active at 37℃. The optimaltemperature was 50℃. For HPV-6bE1, k_m = 12.2 nmol/L, k_cat = 0.18 min～(-1); For HPV-11E1, k_m= 14.7 nmol/L,k_cat =0.14 min～(-1). All these revealed that the design of Rz1198 was correct. It could be a universal ribozyme for thetwo substrates--HPV-6bE1 and HPV-11E1 transcripts. Conclusion: Rz1198 prepared in vitro possesses the perfectspecific catalytic cleavage activity. It leads to the expectation that, in the future, it will be possible to develop a newnucleic acid drug from Rz1198 which can efficiently inhibit the replication of HPV-6b/11 DNA in vivo. (Asian J An-drol 1999 Dec; 1: 195-201)

关键词： ribozyme HPV-6b/11 genetic transcription cleavage identification of activity

Combinatorial Optimization of Physics Parameterization Schemes for Typhoon Simulation Based on a Simple Genetic Algorithm(SGA)

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Journal of Meteorological Research 2024年第1期38卷 10-26页

作者： Zebin LU Jianjun xu Zhiqiang CHEN Jinyi YANG Jeremy Cheuk-Hin LEUNG Daosheng xu Banglin ZHANG china Meteorological Administration–Guangdong Ocean University Joint Laboratory for Marine Meteorology South China Sea Institute of Marine MeteorologyGuangdong Ocean UniversityZhanjiang 524088 College of Ocean and Meteorology Guangdong Ocean UniversityZhanjiang 524088 guangzhou institute of Tropical and Marine Meteorology/Guangdong Provincial Key Laboratory of Regional Numerical Weather Prediction China Meteorological AdministrationGuangzhou 510640 Shenzhen institute of Guangdong Ocean University Shenzhen 518120 College of Atmospheric Science Lanzhou UniversityLanzhou 730000

Each physical process in a numerical weather prediction(NWP)system may have many different parameterization *** studies have shown that the performance of different physical parameterization schemes varies with the weather situation to be ***,it is necessary to select a suitable combination of physical parameterization schemes according to the variation of weather ***,it is rather difficult to identify an optimal combination among millions of possible parameterization scheme *** study applied a simple genetic algorithm(SGA)to optimizing the combination of parameterization schemes in NWP models for typhoon *** feasibility of SGA was verified with the simulation of Typhoon Mujigae(2015)by using the Weather Research and Forecasting(WRF)model and Typhoon Higos(2020)by using the Coupled Ocean–Atmosphere–Wave–Sediment Transport(COAWST)modeling *** results show that SGA can efficiently obtain the optimal combination of *** Typhoon Mujigae(2015),the optimal combination can be found from the 1,304,576 possible combinations by running only 488 *** results can be obtained for Typhoon Higos(2020).Compared to the default combination proposed by the COAWST model system,the optimal combination scheme significantly improves the simulation of typhoon track and *** study provides a feasible way to search for the optimal combinations of physical parameterization schemes in WRF and COAWST for more accurate typhoon *** can help provide references for future development of NWP models,and for analyzing the coordination and adaptability of different physical process parameterization schemes under specific weather backgrounds.

关键词： simple genetic algorithm(SGA) combinatorial optimization typhoon forecast numerical weather prediction(NWP)

Microdiamonds and their classification in eclogites from Dabie and Su-Lu regions, central eastern china

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Microdiamonds and their classification in eclogites from Dab...

Acetic acid-and furfural-based adaptive evolution of Saccharomyces cerevisiae strains for improving stress tolerance and lignocellulosic ethanol production

2004年全国岩石学与地球动力学研讨会

作者： Shutong xu, Yican LIU, Guanbao CHEN~1, Shouyuan JI, Pei NI, Wansheng XIAO (1. Anhui institute of Geology, 19# Ningguo Road Hefei, 230001 china 2. Laboratory of Continental Dynamics of Ministry of Land and Resources of china, Beijing 100037 3. Department of Earth sciences, Nanjing University, Hankou Road, china, 210008 4. guangzhou institute of geochemistry, chinese academy of sciences, guangzhou, china 510640)

＜正＞ Since the first occurrence of microdiamond from Dabie Mountains reported in 1992, more than ten microdiamond crystals were found in 2003 and 2004 respectively. In the present paper, five in situ microdiamonds in thin-sections of eclogites and two free grains recovered from crushed eclogites are reported. Two larger free microdiamonds are 200-700 μm in size;the in situ microdiamonds are 30-180 μm across. Most the in situ microdiamonds are inclusions in garnets, but some larger ones are intergranular. All the newly found microdiaminds are perfectly confirmed by Raman spectroscopy. The most important is the microdiamonds from northern Dabie Mountains, where has been so far treated as a low-pressure terrane by some international geologists. In contrast, it is now proved to be not only the UHP terrane but also the deepest subducted terrane among the UHP terranes by the extra evidence of cpx exsolution in garnets. Two free and two in situ microdiamonds are identified by Infrared spectroscopy to be the mixture of laA and laB types, which differ from the synthetic diamond by lack of single Nitrogen atoms in the crystal lattice. It means that no synthetic diamonds are involved. It is in concordance with the evidence from the microdiamond with zonal structure and inclusion of minor microdiamonds, which can only be found in the naturally formed microdiamonds.

关键词： Microdiamond Raman & Infrared spectroscopy Dabie Mountains Su-Lu region

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chinese Journal of Chemical Engineering 2024年第8期72卷 26-33页

作者： Omama Rehman Youduo Wu Quan Zhang Jin Guo Cuihuan Sun Huipeng Gao Yaqing xu Rui xu Ayesha Shahid Chuang xue State Key Laboratory of Fine Chemicals Frontiers Science Centre for Smart Materials Oriented Chemical EngineeringEngineering Research Center of Application and Transformation for Synthetic BiologySchool of BioengineeringDalian University of TechnologyDalian 116024China Ningbo institute of Dalian University of Technology Ningbo 315016China SINOPEC Dalian Research institute of Petroleum and Petrochemicals Co. Ltd.Dalian 116041China Microbial Research institute of Liaoning Province Chaoyang 122000China Yunnan Provincial Rural Energy Engineering Key Laboratory Kunming 650600China US-Pak Center for Advanced Studies in Agriculture and Food Security University of AgricultureFaisalabadPakistan

Acetic acid and furfural are known as prevalent inhibitors deriving from pretreatment during lignocellulosic ethanol *** negatively impact cell growth,glucose uptake and ethanol biosynthesis of Saccharomyces cerevisiae *** of industrial *** strains with high tolerance towards these inhibitors is thus critical for efficient lignocellulosic ethanol *** this study,the acetic acid or furfural tolerance of different *** strains could be significantly enhanced after adaptive evolution via serial cultivation for 40 generations under stress *** acetic acid-based adaptive strain SPSC01-TA9 produced 30.5 g·L^(-1)ethanol with a yield of 0.46 g·g^(-1)in the presence of 9 g·L^(-1)acetic acid,while the acetic acid/furfural-based adaptive strain SPSC01-TAF94 produced more ethanol of 36.2 g·L^(-1)with increased yield up to 0.49 g·g^(-1)in the presence of both 9 g·L^(-1)acetic acid and 4 g·L^(-1)*** improvements were also observed during non-detoxified corn stover hydrolysate culture by SPSC01-TAF94,which achieved ethanol production and yield of 29.1 g·L^(-1)and 0.49 g·g^(-1),respectively,the growth and fermentation efficiency of acetic acid/furfural-based adaptive strain in hydrolysate was 95%higher than those of wildtype strains,indicating the acetic acid-and furfural-based adaptive evolution strategy could be an effective approach for improving lignocellulosic ethanol *** adapted strains developed in this study with enhanced tolerance against acetic acid and furfural could be potentially contribute to economically feasible and sustainable lignocellulosic biorefinery.

关键词： Saccharomyces cerevisiae Lignocellulosic ethanol production Adaptive evolution Acetic acid Furfural

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断层识别技术及其在肇州油田的应用

石油物探 2011年第5期50卷 521-525,7页

作者：王鹏钟建华张亚金赵文栋王旭中国科学院广州地球化学研究所广东广州510640 中国石油天然气集团公司东方地球物理勘探有限责任公司研究院地质研究中心河北涿州072751 中国石油大学(华东) 山东青岛266555 中国石油天然气集团公司大庆油田勘探开发研究院黑龙江大庆163000 中国石油天然气集团公司渤海钻探工程有限公司天津300475

肇州油田州371区块位于肇州鼻状构造东翼,是油气运移的指向区。由于断层切割而发育有小断块和小断鼻,小断层对构造形态及油水关系影响大。针对该区块断层多、断距小、延伸短、多期发育、切割关系和组合关系复杂、小断层解释和识别难的... 详细信息

肇州油田州371区块位于肇州鼻状构造东翼,是油气运移的指向区。由于断层切割而发育有小断块和小断鼻,小断层对构造形态及油水关系影响大。针对该区块断层多、断距小、延伸短、多期发育、切割关系和组合关系复杂、小断层解释和识别难的地质特点,综合应用了相干体分析技术、沿层倾角方位角分析技术、频谱分解技术以及三维可视化技术等多种物探技术手段,结合地震剖面等多种信息,识别出常规地震数据体难以识别的小断层,并厘清了该区块断层的分布规律及接触关系,发现和落实了一批与小断层有关的低幅度构造,表现了精细构造解释的目的。

关键词：断层优势频带相干体倾角方位角频谱分解构造精细解释

Manufacturing Enterprises Value Chain Model Analysis within the Context of the Network Economy

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Manufacturing Enterprises Value Chain Model Analysis within ...

On the Isomorphic Classes of Hopf-Galois Extensions with Normal Bases over a Commutative Ring

第四届电子商务国际会议

作者： xuejun xu Luo Li xuelan Hua Jianhui Huang Business Administration School South china University of Technology guangzhou 510640 china institute for New Industrialization South china University of Technology guangzhou 510640 china

＜正＞ Manufacturing enterprises in the future will have to survive and develop in the network economy with the development of information and network communication technology, the globalization of economy, and the interaction of these two factors. Nowadays the business environments which manufacturing enterprises are facing are very complicated and volatile. The traditional coordinating relationships between operation models of manufacturing enterprises and their business environment have already been changed as a result of globalization, informatization and personalization of customers’ needs. New coordinating relationships are in the process of *** operations management in manufacturing enterprise, traditional management theories and methods only confined to the solving of problems within the boundaries of individual enterprise. The introduction of supply chain management makes people considering enterprise problems in a larger context, but most researchers in this field pay more attention to tactic issues. Typical solutions are methods such as postponed manufacturing, information sharing and interests sharing. The systematic and strategic analysis of the supply chain is *** analysis approach is adopted in this paper. We start our work from the analysis of environment, objective, and structure of supply chain system. Porter’s value chain model is then studied and its limitations under new circumstances are pointed out. On the basis of the work described above, we analyze the features of network economy and explore the new value chain model for manufacturing enterprise in the network economy. Finally an empirical case study is conducted.

关键词： Manufacturing Enterprises Value Chain Systematic Analysis Net Economy Case Study

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Acta Mathematica Sinica,English Series 1999年第4期15卷 515-524页

作者： Xiaolong Jiang Department of Mathematics,Zhongshan University,guangzhou 510275,P.R.china E-mail:stdm@zsu.edu.cnYonghua xu institute of Mathematics,Fudan University,Shanghai 200433,P.R.china E-mail:yxu@*** Department of Mathematics Zhongshan University Guangzhou P. R. China institute of Mathematics Fudan University Shanghai P. R. China

In this paper we consider the isomorphic classes of H-Galois extensions with the normal basis property over a fixed commutative ring B for a finite Hopf algebra *** result is that when H is cocommutative,then the above isomorphic classes and the 2-nd cohomology group H^2(L~*,U) are isomorphic as groups under the product defined in this paper,where L=BH,L~*=Hom_B(L,B).

关键词： Hopf-Galois extentions Cohomology group