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Communications in Theoretical Physics 2006年第3X期46卷 507-513页

作者： ZONG Yuan-Yuan SHEN Peng-nian ZOU bing-Song LIU Ji-Feng LIANG Wei-Hong Institute of High Energy Physics the Chinese Academy of Sciences P.O. Box 918(4) Beijing 100049 China Department of Physics Guangxi Normal University Guilin 541004 China Center of Theoretical Nuclear Physics National Laboratory of Heavy Ion Accelerator Lanzhou 730000 China Institute of Theoretical Physics the Chinese Academy of Sciences Beijing 100080 China

We re-study nucleon pole contribution in J/ψ → NN^-π decays by including the imaginary part for the propagator of the off-shell nucleon with energy above π N threshold. It is found that when including the imaginary part in the propagator, the branching ratio of the decay width will descend about 11% compared with the result without including the imaginary part, no matter whether including the off-shell form factors or not. It also leads to a phase of up to 25° for the off-shell nucleon propagator at invariant mass around 1400 MeV. This effect needs to be considered for detailed partial wave analysis of N^＊ resonances around this mass region.

关键词： J/ψ decay form factor

Optimal Offering Strategy of Virtual Power Plant with Hybrid Renewable Ocean Energy Portfolio

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CSEE Journal of Power and Energy Systems 2023年第6期9卷 2040-2051页

作者： Siyuan Guo Bin zhou Ka Wing Chan Siqi Bu Canbing Li nian Liu Cong Zhang College of Electrical and Information Engineering Hunan UniversityChangsha 410082China Department of Electrical Engineering The Hong Kong Polytechnic UniversityHong KongChina School of Electronic Information and Electrical Engineering Shanghai Jiao Tong UniversityShanghai 200240China State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power UniversityBeijing 102206China

This paper proposes a hybrid ocean energy sys-tem to form a virtual power plant(VPP)for participating in electricity markets in order to promote the renewable ocean energy utilization and *** the proposed system,solar thermal energy is integrated with the closed-cycle ocean thermal energy conversion(OTEC)to boost the temperature differences between the surface and deep seawater for efficiency and flexibility improvements,and the thermodynamic effects of seawater mass flow rates on the output of solar-boosted OTEC(SOTEC)are exploited for deploying SOTEC as a renewable dispatchable *** optimal tidal-storage operation model is also developed to make use of subsea pumped storage(SPS)with hydrostatic pressures at ocean depths for mitigating the intermittent tidal range energy in order to make the arbitrage in the electricity ***,a two-stage coordinated scheduling strategy is presented to optimally control seawater mass flow rates of SOTEC and hydraulic reversible pump-turbines of SPS for enhancing the daily VPP *** studies have been investigated to confirm the superiority of the developed methodology in various renewable ocean energy and electricity market price scenarios.

关键词： Ocean thermal energy conversion rolling optimization subsea pumped storage system tidal power generation virtual power plant

Effect of the Compressive Stress for the Growth of Cubic-BN Film

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Chinese Physics Letters 1998年第8期15卷 615-616页

作者： ZHAO Yong-nian ZOU Guang-tian HE Zhi ZHAO bing WANG Bo State Key Laboratory for Superhard Materials Jilin UniversityChangchun 130023 Key Laboratory for Supramolecular Structure and Spectroscopy Jilin UniversityChangchun 130023

In this work,it is found that the compressive stress on the surface of cubic-BN(c-BN)film is all smaller than that inside c-BN film and after a longer period,the depositing matter mainly is of hexagonal-BN phase rather than c-BN phase,those just are the reason why a pure thicker c-BN film cannot,as yet,be *** to now the lowest IR peak position of 1004.7cm-1 detected from a broken and part delaminated c-BN film may be one close to the stressless c-BN.

关键词： film hexagonal laminated

Quasi-Normal Oscillations of a Black Hole with Deficit Angle for Electromagnetic Perturbations

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Chinese Physics Letters 2001年第4期18卷 482-484页

作者： LI Xin-zhou zhou bing-Lu ZHU Jiong-Ming Department of Physics Shanghai Normal UniversityShanghai 200234

We consider an electromagnetic perturbation in the external space-time of a black hole with deficit angle,and describe the perturbation *** analytic formulas for the quasi-normal frequencies have been provided,which may play a significant role in the continuing search for gravitational radiation and black *** frequencies can be distinguished from the ordinary quasi-normal frequencies of Schwarzschild black hole.

关键词： equation. perturbation quasi

Multi-microgrid Energy Management Systems: Architecture, Communication, and Scheduling Strategies

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Journal of Modern Power Systems and Clean Energy 2021年第3期9卷 463-476页

作者： Bin zhou Jianting Zou Chi Yung Chung Huaizhi Wang nian Liu Nikolai Voropai Daosen Xu the College of Electrical and Information Engineering Hunan UniversityChangsha 410082China the Department of Electrical and Computer Engineering University of SaskatchewanSaskatoonSK S7N5A9Canada the College of Mechatronics and Control Engineering Shenzhen UniversityShenzhen 518060China the State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power UniversityBeijing 102206China the Melentiev Energy Systems Institute of Siberian Branch of the Russian Academy of Sciences Irkutsk 664033Russia

The increasing penetration of various distributed and renewable energy resources at the consumption premises,along with the advanced metering,control and communication technologies,promotes a transition on the structure of traditional distribution systems towards cyber-physical multi-microgrids(MMGs).The networked MMG system is an interconnected cluster of distributed generators,energy storage as well as controllable loads in a distribution *** its operation complexity can be decomposed to decrease the burdens of communi-cation and control with a decentralized ***,the multi-microgrid energy management system(MIVIGEIV1S)plays a significant role in improving energy efficiency,power quality and reliability of distribution systems,especially in enhancing system resiliency during contingencies.A comprehensive overview on typical functionalities and architectures of MMGEMS is ***,the emerging communication technologies for information monitoring and interaction among MMG clusters are ***,various energy scheduling and control strategies of MMGs for interactive energy trading,multi-energy management,and resilient operations are thoroughly analyzed and ***,some challenges with great importance in the future research are presented.

关键词： Energy management system(EMS) microgrid communication renewable energy multi-energy system

Ballistic impact response of resistance-spot-welded(RSW) double-layered plates for Q&P980 steel

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Defence Technology（防务技术） 2022年第6期18卷 1052-1064页

作者： Bo-han Ma Dong-fang Ma Huan-ran Wang Da-nian Chen Feng-hua zhou MOE Key Laboratory of Impact and Safety Engineering Ningbo UniversityNingbo315211China College of Science&Technology Ningbo UniversityNingbo315211China

Ballistic impact response of resistance-spot-welded(RSW)double-layered(2×1.6 mm)plates(190 mm×150 mm)for Q&P980 steel impacted by a round-nosed steel bullet(12 mm diameter and 30 mm length)was investigated by using gas gun and high-speed camera *** RSW specimens were spot welded using a 6 mm diameter electrode face producing a 7.2 mm diameter fusion zone of the spot *** ballistic curve and energy balance for the tests of the spot weld of the RSW specimens at different velocity were analyzed to characterize the ballistic behavior of the RSW specimens under bullet *** fracture mechanisms of the RSW specimens under bullet impact were *** the tests below the ballistic limit,the cracks initiated from the notch-tip and propagated along the faying surface or obliquely through the thickness depending on the impact *** the tests above the ballistic limit,the plug fracture in the front plate of the RSW specimen could be caused by the thinning-induced necking in the BM near the HAZ,while the plug fracture in the rear plate of the RSW specimens may be consist of the circumferential cracking from the rear surface and the bending fracture of the hinged part of *** effects of the electrode indentation and the weld interfaces on deformation and fracture of the RSW specimens under bullet impact were *** the tests above the ballistic limit,the circumferential fracture from the rear surface of the RSW specimens was always initiated along the interior periphery of the electrode indentation and the crack paths were along the FZ/CGHAZ or CGHAZ/FGHAZ *** the circumferential crack also formed outside the electrode indentation,the fracture on the BM/HAZ interface could be *** the front plate of the RSW specimens,the shear/bending induced cracking from the notch-tip were observed and the crack paths were along the FZ/CGHAZ or CGHAZ/FGHAZ interface.

关键词： RSW Q&P980 steel Ballistic impact Deformation Fracture

Designer TAL Effectors Induce Disease Susceptibility and Resistance to Xanthomonas oryzae pv. Oryzae in Rice

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Molecular Plant 2013年第3期6卷 781-789页

作者： Ting Li Sheng Huang Junhui zhou bing Yang Department of Genetics Development and Cell Biology Iowa State University Ames IA 50011 USA Present address: State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources College of Life Science and Technology Guangxi University Nanning Guangxi 530005 China

TAL （transcription activator-like） effectors from Xanthomonas bacteria activate the cognate host genes, leading to disease susceptibility or resistance dependent on the genetic context of host target genes. The modular nature and DNA recognition code of TAL effectors enable custom-engineering of designer TAL effectors （dTALE） for gene activation. However, the feasibility of dTALEs as transcription activators for gene functional analysis has not been demonstrated. Here, we report the use of dTALEs, as expressed and delivered by the pathogenic Xanthomonas oryzae pv. oryzae （Xoo）, in revealing the new function of two previously identified disease-related genes and the potential of one developmental gene for disease susceptibility in rice/Xoo interactions. The dTALE gene dTALE-xa27, designed to target the susceptible allele of the resistance gene Xa27, elicited a resistant reaction in the otherwise susceptible rice cultivar IR24. Four dTALE genes were made to induce the four annotated Xa27 homologous genes in rice cultivar Nipponbare, but none of the four induced Xa27-1ike genes conferred resistance to the dTALE-containing Xoo strains. A dTALE gene was also generated to activate the recessive resistance gene xa13, an allele of the disease-susceptibility gene Os8N3 （also named Xa13 or OsSWEETll, a member of sucrose efflux transporter SWEET gene family）. The induction of xa13 by the dTALE rendered the resistant rice IRBB13 （xa13/xa13） susceptible to Xoo. Finally, OsSWEET12, an as-yet uncharacterized SWEET gene with no corresponding naturally occurring TAL effector identified, conferred susceptibility to the Xoo strains expressing the corresponding dTALE genes. Our results demonstrate that dTALEs can be delivered through the bacterial secretion system to activate genes of interest for functional analysis in plants.

关键词： TA/effector rice Xanthomonas Xa27 disease susceptibility disease resistance designer TAL effector.

Global Optimization Method for Linear Multiplicative Programming

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Acta Mathematicae Applicatae Sinica 2015年第2期31卷 325-334页

作者： Xue-gang zhou bing-yuan CAO Kun WU School of Mathematics and Information Science Key Laboratory of Mathematics and Interdisciplinary Sciences of Guangdong Higher Education Institutes Guangzhou University Department of Applied Mathematics Guangdong University of Finance School of Mathematical Science and Computing Technology Center South University

In this paper, a new global algorithm is presented to globally solve the linear multiplicative programming（LMP）. The problem（LMP） is firstly converted into an equivalent programming problem（LMP（H））by introducing p auxiliary variables. Then by exploiting structure of（LMP（H））, a linear relaxation programming（LP（H）） of（LMP（H）） is obtained with a problem（LMP） reduced to a sequence of linear programming problems. The algorithm is used to compute the lower bounds called the branch and bound search by solving linear relaxation programming problems（LP（H））. The proposed algorithm is proven that it is convergent to the global minimum through the solutions of a series of linear programming problems. Some examples are given to illustrate the feasibility of the proposed algorithm.

关键词： linear multiplicative programming global optimization linear programming branch and bound

An estimation method of soil wind erosion in Inner Mongolia of China based on geographic information system and remote sensing

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Journal of Arid Land 2015年第3期7卷 304-317页

作者： Yi zhou bing GUO ShiXin WANG HePing TAO Institute of Remote Sensing and Digital Earth Chinese Academy of Sciences University of Chinese Academy of Sciences Institute of Mountain Hazards and Environment Chinese Academy of Sciences

Studies of wind erosion based on Geographic Information System（GIS） and Remote Sensing（RS） have not attracted sufficient attention because they are limited by natural and scientific *** studies have been conducted to estimate the intensity of large-scale wind erosion in Inner Mongolia,*** the present study,a new model based on five factors including the number of snow cover days,soil erodibility,aridity,vegetation index and wind field intensity was developed to quantitatively estimate the amount of wind *** results showed that wind erosion widely existed in Inner *** covers an area of approximately 90×104 km2,accounting for 80% of the study *** 1985–2011,wind erosion has aggravated over the entire region of Inner Mongolia,which was indicated by enlarged zones of erosion at severe,intensive and mild *** Inner Mongolia,a distinct spatial differentiation of wind erosion intensity was *** distribution of change intensity exhibited a downward trend that decreased from severe increase in the southwest to mild decrease in the northeast of the *** occupied by barren land or sparse vegetation showed the most severe erosion,followed by land occupied by open *** would have the most dramatic potential for changes in the future because these areas showed the largest fluctuation range of change *** addition,a significantly negative relation was noted between change intensity and land *** relation between soil type and change intensity differed with the content of Ca CO3 and the surface composition of sandy,loamy and clayey soils with particle sizes of 0–1 *** results have certain significance for understanding the mechanism and change process of wind erosion that has occurred during the study ***,the present study can provide a scientific basis for the prevention and treatment of wind erosion in Inner Mongolia.

关键词： wind erosion estimation model soil erodibility snow cover days aridity Inner Mongolia