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Journal of Zhejiang University-Science A(Applied Physics & engineering) 2006年第10期7卷 1652-1661页

作者： LIANG Hai-hua ZHU Miao-liang School of Computer Science and Technology Zhejiang University Hangzhou 31002 7 China

Model driven generative domain engineering (MDGDE) is a domain engineering method aiming to develop optimized, reusable architectures, components and aspects for application engineering. Agents are regarded in MDGDE as special objects having more autonomy, and taking more initiative. Design of the agent involves three levels of activities: logical analysis and design, physical analysis, physical design. This classification corresponds to domain analysis and design, application analysis, and application design. Agent is an important analysis and design tool for MDGDE because it facilitates development of complex distributed system—the mobile robot. According to MDGDE, we designed a distributed communication middleware and a set of event-driven agents, which enables the robot to initiate actions adaptively to the dynamical changes in the environment. This paper describes our approach as well as its motivations and our practice.

关键词： domain engineering Agent oriented software engineering Mobile robot

Phase and domain engineering strategy for enhancement of piezoelectricity in the lead-free BiFeO_(3)-BaTiO_(3)ceramics

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Journal of Materiomics 2023年第5期9卷 920-929页

作者： Muhammad Habib Xuefan Zhou Lin Tang Guoliang Xue Fazli Akram Meshal Alzaid Dou Zhang State Key Laboratory of Powder Metallurgy Central South UniversityChangshaHunan410083China Department of Chemistry Clark Atlanta UniversityAtlantaGA30314United States Department of Physics College of ScienceJouf UniversityAl-JoufSakakaP.O.Box 2014Saudi Arabia

Lead-free BiFeO_(3)-BaTiO_(3)ceramics attract widespread attention over the last two decades due to their high Curie temperature(TC)and excellent piezoelectric ***,in the Nd-modified 0.67BiFeO_(3)-0.33BaTiO_(3)ceramics,an excellent piezoelectric constant(d33)of 325 pC/N was achieved by applying a novel poling method(AC-biasþDC-bias)with a high TC of 455℃.In addition,an ultrahigh normalized piezoelectric strain(d33*¼Smax/Emax)of 808 pm/V was obtained at the normal/typical and relaxor-ferroelectrics phase boundary simultaneously with good thermal stability(Dd33*(T)z 20%)in the temperature range of 25e125℃.The piezoelectric force microscopy results show the domain miniaturization from micro to nanoscale/polar nano-regions due to local structure heterogeneity caused by Nd *** mechanism for the giant piezoelectric strain is attributed to the thermal quenching,nano-domains,and reverse switching of the short-range order to the long-range order under the applied electric *** strategic design of domain engineering and a proposed model for the high piezoelectricity is successfully supported by the phenomenological relation and Gibbs free energy *** this work,a new lead-free single-element modified BiFeO_(3)-BaTiO_(3)ceramics was developed by applying a synergistic approach of domain engineering and phase boundary for the high-temperature piezoelectric performance.

关键词： domain engineering BiFeO_(3)-BaTiO_(3) Piezoelectric Temperature-stability

domain patterning in nonpolar cut PMN–PT by focused ion beam

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Journal of Advanced Dielectrics 2024年第2期14卷 83-89页

作者： Elena Pashnina Dmitry Chezganov Alla Slautina Anton Turygin Andrei Ushakov Qingyuan Hu Xin Liu Zhuo Xu Xiaoyong Wei Vladimir Shur School of Natural Sciences and Mathematics Ural Federal University Yekaterinburg 620002 Russia Electronic Materials Research Laboratory Key Laboratory of the Ministry of Education&International Center for Dielectric Research School of Electronic Science and engineering Xi’an Jiaotong University Xi’an 710049 P.R.China

The formation of the ferroelectric domain structure as a result of irradiation by focused ion beam of[100]-cut 0.61Pb(Mg_(1/3)Nb_(2/3)TO_(3)–0.39PbTiO_(3)(PMN–PT)single crystals covered by surface artificial dielectric layer and with free surface was *** dot irradiation resulted in formation of the wedge-like domains grown along[001]*** irradiation of the free surface,the domains are mainly located under the surface,while at the irradiated surface with an artificial dielectric layer the domains are located at the *** was shown that the subsurface wedge-shaped part of the domain is unstable and completely disappears after a month due to spontaneous backswitching under the action of the residual depolarization *** revealed nonlinear dose dependence of the domain sizes was attributed to the distribution of the electric field using the point charge *** domain interaction for the distance between irradiated dots below 30m has been revealed in all *** was shown that the decrease of the distance between irradiated dots in the created domain row leads to an increase in the length of the central domains,which is explained by the contribution of all injected charges to the switching field.

关键词： Ion beam domain patterning dielectric layer domain interaction spontaneous backswitching domain engineering relaxor ferroelectric

A Method for Bio-Sequence Analysis Algorithm Development Based on the PAR Platform

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Big Data Mining and Analytics 2023年第1期6卷 11-20页

作者： Haipeng Shi Huan Chen Qinghong Yang Jun Wang Haihe Shi School of Software Jiangxi Normal UniversityNanchang 330022China School of Computer and Information engineering Jiangxi Normal UniversityNanchang 330022China

The problems of biological sequence analysis have great theoretical and practical value in modern *** solving algorithms are used for these problems,and complex similarities and differences exist among these algorithms for the same problem,causing difficulty for researchers to select the appropriate *** address this situation,combined with the formal partition-and-recur method,component technology,domain engineering,and generic programming,the paper presents a method for the development of a family of biological sequence analysis *** designs highly trustworthy reusable domain algorithm components and further assembles them to generate specifific biological sequence analysis *** experiment of the development of a dynamic programming based LCS algorithm family shows the proposed method enables the improvement of the reliability,understandability,and development efficiency of particular algorithms.

关键词： partition-and-recur(PAR) domain engineering biological sequences feature model component assembly

Patterning of large area nanoscale domains in as-grown epitaxial ferroelectric PbTiO_(3)films

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Journal of Materiomics 2023年第1期9卷 56-61页

作者： Luyong Zhang Guo Tian Wenda Yang Dongfeng Zheng Chuanjie Lin Jianbiao Xian Yihang Guo Xingchen Zhang Xiuqin Qiu Lanping Zhang Zhen Fan Deyang Chen Zhipeng Hou Minghui Qin Jun-Ming Liu Xingsen Gao Guangdong Provincial Key Laboratory of Optical Information Materials South China Academy of Advanced OptoelectronicsSouth China Normal UniversityGuangzhou510006China Laboratory of Solid State Microstructures and Innovation Center of Advanced Microstructures Nanjing UniversityNanjing210093China

Effective tuning of nanoscale domain structures provides fundamental basis for controlling and engineering of various functionalities in ferroelectric *** this work,we demonstrate the precise patterning of nanoscopic domain structures in as-grown epitaxial PbTiO_(3)(PTO)films by merely introducing an ultrathin pre-patterned doping layer(e.g.,Fe-doped PTO).The doping layer can effectively reverse the interfacial built-in bias,consequent to a reversed initial polarization reorientation in the as-grown film,which makes it possible to transfer the nano-patterns in the doping layer into the domain structure of ferroelectric *** instance,we have successfully fabricated large area ordered array of nanoscale cylindrical domains(downward polarization)embedded in the matrix domain with opposite polarization(upward polarization)in PTO *** nanoscale cylinder domains also allow deterministic and reversible erasure and creation induced by biased tip *** results provide an effective pathway for on-demand patterning of large area nanoscale domains in the as-grown films,which may find applications in a wide range of nanoelectronic devices.

关键词： Ferroelectric thin film Patterning of nanoscale domain domain engineering Nanoscale cylindrical domains

Reuse-based software production technology

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Science in China(Series F) 2001年第1期44卷 8-19页

作者：杨芙清王千祥梅宏陈兆良 Department of Computer Science and Technology Peking University

Software reuse is viewed as a key technology to improve software product quality and productivity. This paper discusses a series of technologies related with software reuse and software component technology: component model, which describes component’s essential characteristics; component acquisition technology, of which domain engineering is the main approach; component management technology, of which component library is the kernel; application integration and composition technology, of which application engineering is the main approach; software evolution technology, of which software reengineering is the main approach, etc. This paper introduces the software development environment: JadeBird Software Production Line System, which effectively integrates the above-mentioned technologies.

关键词： software reuse software component domain engineering component library application engineering rengineering.

Modeling of Piezoelectric,Piezomagnetic and Multiferroic Composites

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Modeling of Piezoelectric,Piezomagnetic and Multiferroic Com...