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The Classification of Proper Holomorphic Mappings Between Special Hartogs Triangles of Different Dimensions

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Chinese Annals of Mathematics,Series B 2008年第5期29卷 557-566页

作者： zhihua chen Yang LIU Department of Mathematics Tongji University Shanghai 200092 China Department of Mathematics Zhejiang Normal University Jinhua 321004 Zhejiang China

The authors discuss the proper holomorphic mappings between special Hartogs triangles of different dimensions and obtain a corresponding classification theorem.

关键词： Proper holomorphic mapping Hartogs triangle Automorphism group

Higher-Order Schwarz-Pick Estimates for Holomorphic Self-mappings on Classical Domains

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Chinese Annals of Mathematics,Series B 2012年第4期33卷 601-608页

作者： Yang LIU zhihua chen Department of Mathematics Zhejiang Normal University Jinhua 321004 Zhejiang China. Department of Mathematics Tongji University Shanghai 200092 China.

In this paper, Schwarz-Pick estimates for high order FrSchet derivatives of holo- morphic self-mappings on classical domains are presented. Moreover, the obtained result can deduce the early work on Sc：hwarz-Pick est... 详细信息

关键词： Schwarz-Pick estimate Holomorphic self-mapping Classical domain Holomorphic expansion

A uniqueness theorem for meromorphic mappings in several complex variables

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Frontiers of Mathematics in China 2012年第4期7卷 669-677页

作者： zhihua chen Qiming YAN Department of Mathematics Tongji UniversityShanghai 200092China

In this paper, we give a uniqueness theorem for meromorphic mappings from Cn into P^N（C） with rank ≥ μ regardless of multiplicities.

关键词： Value distribution theory uniqueness theorem meromorphicmapping

AutoBPS-BIM:A toolkit to transfer BIM to BEM for load calculation and chiller design optimization

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Building Simulation 2023年第7期16卷 1287-1298页

作者： zhihua chen Zhang Deng Adrian Chong Yixing chen College of Civil Engineering Hunan UniversityChangshaHunan 410082China Key Laboratory of Building Safety and Energy Efficiency(Hunan University) Ministry of EducationChina Department of Building National University of Singapore4 Architecture Drive117566Singapore

This study developed a rapid building modeling tool,AutoBPS-BIM,to transfer the building information model(BIM)to the building energy model(BEM)for load calculation and chiller design *** eight-storey office building in Beijing,33.2 m high,67.2 m long and 50.4 m wide,was selected as a case study ***,a module was developed to transfer BIM in IFC format into BEM in *** air volume systems were selected for the air system,while water-cooled chillers and boilers were used for the central *** EnergyPlus model calculated the heating and cooling loads for each space as well as the energy consumption of the central ***,a chiller optimization module was developed to select the optimal chiller design for minimizing energy consumption while maintaining thermal *** available chillers were included,with capacities ranging from 471 kW to 1329 *** results showed that the cooling loads of the spaces ranged from 33 to 100 W/m^(2) with a median of 45 W/m^(2),and the heating load ranged from 37 to 70 W/m^(2) with a median of 52 W/m^(2).The central plant’s total cooling load under variable air volume systems was 1400 *** with the static load calculation method,the dynamic method reduced 33%of the chiller design *** two chillers were used,different chiller combinations’annual cooling energy consumption ranged from 10.41 to 11.88,averaging 11.12 kWh/m^(2).The lowest energy consumption was 10.41 kWh/m^(2) when two chillers with 538 kW and 1076 kW each were *** the proper chiller number with different capacities was critical to achieving lower energy consumption,which achieved 12.6%cooling system energy consumption reduction for the case study *** study demonstrated that AutoBPS-BIM has a large potential in modeling BEM and optimizing chiller design.

关键词： BIM building energy model EnergyPlus chiller design optimization AutoBPS-BIM

Finite element modeling of cable sliding and its effect on dynamic response of cable-supported truss

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Frontiers of Structural and Civil Engineering 2019年第5期13卷 1227-1242页

作者： Yujie YU zhihua chen Renzhang YAN School of Civil Engineering Central South UniversityChangsha 410000China Department of Civil Engineering Tianjin UniversityTianjin 300072China College of Civil Engineering Chongqing Jiaotong UniversityChongqing 400000China

The cable system of cable-supported structures usually bears high tension forces, and clip joints may fail to resist cable sliding in cases of earthquake excitations or sudden cable breaks. A analytical method that considers the dynamic cable sliding effect is proposed in this paper. Cable sliding behaviors and the resultant dynamic responses are solved by combining the vector form intrinsic finite element framework with cable force redistribution calculations that consider joint frictions. The cable sliding effect and the frictional tension loss are solved with the original length method that uses cable length and the original length relations. Then, the balanced tension distributions are calculated after frictional sliding. The proposed analytical method is achieved within MATLAB and applied to simulate the dynamic response of a cable-supported plane truss under seismic excitation and sudden cable break. During seismic excitations, the cable sliding behavior in the cable-supported truss have an averaging effect on the oscillation magnitudes, but it also magnifies the internal force response in the upper truss structure. The slidable cable joints can greatly reduce the ability of a cable system to resist sudden cable breaks, while strong friction resistances at the cable-strut joints can help retain internal forces.

关键词： sliding cable explicit solution framework original length method seismic response cable rupture

Spiking neural P systems with anti-spikes and without annihilating priority as number acceptors

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Journal of Systems Engineering and Electronics 2014年第3期25卷 464-469页

作者： Gangjun Tan Tao Song zhihua chen Key Laboratory of Image Information Processing and Intelligent Control School of AutomationHuazhong University of Science and Technology

Spiking neural P systems with anti-spikes （ASN P systems） are variant forms of spiking neural P systems, which are inspired by inhibitory impulses/spikes or inhibitory synapses. The typical feature of ASN P systems is when a neuron contains both spikes and anti-spikes, spikes and anti-spikes wil immediately annihilate each other in a maximal way. In this paper, a restricted variant of ASN P systems, cal ed ASN P systems without anni-hilating priority, is considered, where the annihilating rule is used as the standard rule, i.e., it is not obligatory to use in the neuron associated with both spikes and anti-spikes. If the annihilating rule is used in a neuron, the annihilation wil consume one time unit. As a result, such systems using two categories of spiking rules （identified by （a, a） and （a,a^-）） can achieve Turing completeness as number accepting devices.

关键词： membrane computing spiking neural P system Turing completeness register machine anti-spike.

A Remark on Steinness

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Chinese Annals of Mathematics,Series B 2007年第2期28卷 161-164页

作者： Chaohui ZHOU zhihua chen Department of Applied Mathematics Tongji University Shanghai 200092 China.

In this paper, the authors prove that if Mn is a complete noncompact Kaehler manifold with a pole p, and its holomorphic bisectional curvature is asymptotically nonnegative to p, then it is a Stein manifold.

关键词： Holomorphic bisectional curvature Plurisubharmonic Smooth Exhausting

A Note on Schwarz-Pick Estimate

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Chinese Annals of Mathematics,Series B 2010年第3期31卷 343-346页

作者： Yang LIU zhihua chen Department of Mathematics Zhejiang Normal University Jinhua 321004 Zhejiang China. Department of Mathematics Tongji University Shanghai 200092 China

A Schwarz-Pick estimate of higher order derivative for holomorphic functions with positive real part on Bn is presented. This improves the earlier work on Schwarz-Pick estimate of higher order derivatives for holomorp... 详细信息

关键词： Schwarz-Pick estimate Holomorphic function Taylor expansion

An Upper Bound of Essential Norm of Composition Operator on H^2(B_n)

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Chinese Annals of Mathematics,Series B 2012年第6期33卷 841-856页

作者： zhihua chen Liangying JIANG Qiming YAN Department of Mathematics Tongji University Department of Applied Mathematics Shanghai Finance University Department of Mathematics Tongji University

The authors give an upper bound of the essential norm of a composition operator on H2(Bn),which involves the counting function in the higher dimensional value distribution theory defined by ***.A criterion is also giv... 详细信息

关键词： Essential norm Composition operator Hardy space