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| 1 | Some basic principles for linear coupled dynamic thermopiezoelectricity显示文摘According to the basic idea of classical yin-yang complementarity and modern dual-complementarity, in a simple and unified way some basic principles for linear coupled dynamic thermopiezoelectricity can be established systematically. An important integral relation in terms of convolutions is given, which can be considered as the generalized principle of virtual work in mechanics. Based on this relation, it is possible not only to obtain the principle of virtual work and the reciprocal theorem in linear coupled dynamic thermopiezoelectricity, but also to derive systematically the complementary functionals for eleven-field, nine-field, six-field and three-field simplified Gurtin-type variational principles. Furthermore, with this approach, the intrinsic relationship among various principles can be explained clearly. | 罗恩 邝君尚 | 1999 | Science China Mathematics1999，42，12： | 8 |
| 2 | Many-knot spline technique for approximation of data显示文摘A class of new fundamental functions with compact support called many-knot spline is introduced. The two-scale relation for the fundamental functions is investigated, and the higher order accuracy spline approximation scheme is constructed by using the available degrees of freedom which come from additional knots. The technique has been efficiently applied to the problems such as time-frequency analysis, computer aided geometric design, and digital signal processing. | 齐东旭 李华山 | 1999 | Science China(Technological Sciences)1999，42，4： | 4 |
| 3 | SOME PROPERTIES OF THE INDISCERNIBILITY RELATION IN ROUGH SETS显示文摘The concept of Rough sets was first introduced by Pawlak in 1981. Because this theory is very important and useful in many fields, e. g. in the information systems and the man-machine systems, many scholars both at home and abroad have studied it and obtained a lot of results. Now the theory of Rough sets is still progressing rapidly. However, when this theory is applied to describing an information system, the indiscernibility | 施恩伟 | 1990 | Chinese Science Bulletin1990，35，4： | 2 |
| 4 | Subsolidus phase relations in the system MgO-ZnO-SiO_2 at high pressure显示文摘The subsolidus phase relations were determined experimentally in the system MgO-ZnO-SiO2 at 1.0 GPa and 1 200℃, by use of the high-pressure apparatus 'piston-cylinder'. The results showed characteristics of the phases assemblage different from that in similar ternary systems. It is impossible to form complete Mg2SiO4-Zn2SiO4 olivine and Mg2Si2O6-Zn2Si2O6 pyroxene solid solution. This is controlled by the properties of Zn2+ with an outer layer of electron (Ar)3d10, different from others transition metal ions, like Fe2+ , Ni2+ , Co2+ . | LI Jianping, Jacques Kornprobst Didier Laporte Guangzhou Institute of Geochemistry , Chinese Academy of Sciences , Guangzhou 510640, China Departement des Sciences de la Terre, University Blasie Pascal, 630038 Clermont-Ferrand, France | 1999 | Chinese Science Bulletin1999，44，12： | 2 |
| 5 | VARIATION OF THE PRIMARY FIELD OF LEUCITE UNDER WATER-DEFICIENT CONDITIONS IN THE SYSTEM Ne-Ks-Q-H_2O AT P_(H_2O)=5 kbar显示文摘Phase relationship of the system Ne-Ks-Q-H2O at PH2O= 5 kbar under water-saturated condition has been investigated. Compared with the phase diagrams at 1 atmosphere, 1 kbar and 2 kbar, the primary field of leucite shrinks with increasing pressure. The leucite field of the system Ne-Ks-Q-H2O at PH2O= 5 kbar under water-deficient conditions has | 曾荣树 W. S. MACKENZIE | 1991 | Chinese Science Bulletin1991，36，15： | 1 |
| 6 | Deduction and application of generalized Euler formula in topological relation of geographic information system (GIS)显示文摘By combining geographic information system (GIS), a new conception of 揼roup?in which covers the complex connected region is introduced in the paper. Based on the concep-tion of group, a generalized Euler formula and its properties are deduced and proved. The paper also describes the mathematical principles of generating topological information of polygon in GIS maps and the methods for checking up the veracity of topological relations of the map with Euler formula and general Euler formula. We have also obtained the quantitative relations among real nodes, chains, islands and groups with the formulas. At the same time, the paper introduces Whole Sphere Stereographic (WSS) projection into the GIS, and defines a new conception of 搒ea? The deduction of general Euler formula and the introduction of WSS projection to GIS have developed new ways of delineating GIS topological models from plane to sphere and even con-structing three dimensional (3-D) topological models. | ZHANG Shuqing1, ZHANG Junyan1,2 & ZHANG Bai1 Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun 130012, China Northeast Design Institute of China City Planning and Engineering, Changchun 130012, China | 2004 | Science China Earth Sciences2004，47，8： | 1 |
| 7 | Genetic relation between Carlin-type gold deposits and Sedex-type base metal mineralization显示文摘GOLD mineralization and Sedex-type base metal mineralization (SBM) have been separately studied for along period. This may lead geologists to ignore the important exploration meaning of SBM in goldprospecting. A typical example is related to the Carlin-type gold ore deposits, in the study of which, Hg,As, Sb and other mineralizations have been stressed but SBM has been ignored. 1 A new phenomenon In recent years, it has been discovered that many Carlin-type gold ores and SBM are distributed inthe same geology unit but are disjunctive each other. In Carlin district of USA, Emsbo et al.have reported the Sedex-type Pb-Zn orebody in thedepth of Meikle Au deposit, the same phenomenon has been described in Screamer, Golden April, | LUO Taiyi and GAO Zhenmin Open Laborutory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China | 1999 | Chinese Science Bulletin1999，44，S2： | 1 |
| 8 | POINTWISE MULTIPLIERS OF DIRICHLET TYPE SPACES ON THE UNIT BALL OF C^n显示文摘In this paper, we establish a criterion for a holomorphic function to be a pointwise multiplier of Dirichlet type spaces, and use this criterion to consider the inclusion relations among M(Dr), α-Bloch spaces and Qp spaces. | FENG Shaoji (Institute of Systems Science, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100080 Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China) | 2001 | Journal of Systems Science & Complexity2001，14，3： | 1 |
| 9 | Riesz basis, Paley-Wiener class and tempered splines显示文摘The Marcinkiewicz-Zygmund inequality and the Bernstein inequality are established on which is the space of polynomial splines with irregularly distributed nodes T = where is a real sequence such that constitutes a Riesz basis for L2([ -π, π]) . From these results, the asymptotic relationis proved, where Bπ,2 denotes the set of all functions from L2(R) which can be continued to entire functions of exponential type ≤π, i.e. the classical Paley- Wiener class. | 房艮孙 龙晶凡 | 2000 | Science China Mathematics2000，43，10： | 1 |
| 10 | On Methodology of Fuzzy Systems显示文摘Fuzziness is one of the general characteristics of human thinking and objective things.Fuzzy systems are efficient tools to simulate human thinking and execute fuzzy information processing. This paper discusses several fundamental problems on methodology of fuzzy systems briefly,including generalized fuzzy entropy, generalized defuzzification strategies and fuzzy consistent relation. | Yao Min(Dept. of Computer, Zhejiang University, Hangzhou 310028, P. R. China)Luo Jianhua(Dept. of Biomedical Eng., Shanghai Jiaotong University, 200030, P. R. China) | 1999 | Journal of Systems Engineering and Electronics1999，10，4： | 1 |
| 11 | Garvey-Kelson Mass Relations and n-p Interaction显示文摘Two Garvey-Kelson mass relations are found to be directly related to the n-p interaction. In the case of the same nuclear core, the neutron-proton interaction energy between two neutrons and one proton ∈2n-1p is experimentally found to be close to that between one neutron and two protons ∈1n-2p, which is equivalent to the first Garvey-Kelson mass relation. The sum of∈2n-1p and ∈1n-2p is close to the n-p interaction energy between two neutrons and two protons ∈2n-2p, which leads to the second Garvey-Kelson mass relation. An explanation of these two n-p interaction relations is presented. It is shown that both of these mass relations hold more accurately when the core is an even-even core. | 高早春 孟杰 陈永寿 | 2001 | Chinese Physics Letters2001，18，9： | 0 |
| 12 | A result about Abelian automorphism groups显示文摘Some new techniques are given to prove that two sorts of Abelian groups cannot function as the full automorphism groups of the finite groups. With generality these techniques made a breakthrough in MacHale’s problem. | 班桂宁 俞曙霞 | 1997 | Science China Mathematics1997，40，5： | 0 |
| 13 | Construction of the Fock-like Space for Quons显示文摘The necessary and sufficient condition of the existence of the Fock-like space for quons with a fixed number q is proven, and the uniqueness theorem of the Fock-like space is given. The general-q operators, which satisfy the q-mutation relation a_ja_k - qa_ka_j =δ_jk, areconstructed by using the q = 0 operators as standard building blocks. The Fock-like spaces for quons with q∈(-1,1) prove to be the same as the one with q = 0, which manifestly is the direct sum of all the tensor product powers of the single particle state subspace, hence allow only the Boltzmann statistics . | 于挺 吴兆颜 | 1994 | Science China Mathematics1994，37，12： | 0 |
| 14 | Multiobjective-Multicriterion Decision Making for Selecting Design Scheme of an Absorption Refrigeration System | WANG Shiding Shaanxi Institute of Mechanical Engineering, Xi’anLI Shan Xi’an Jiaotong University, Xi’an | 1993 | Systems Science and Systems Engineering1993，3，3： | 0 |
| 15 | EXPERIMENTAL STUDY OF SELF QUENCHING STREAMER DISCHARGE显示文摘A systematic experimental study on the self quenching streamer discharge has been performed.The dependence of the charge developed in the discharge on the high voltage can be approximated by a linear relation.The concentration of quenching gas and anode diameter have little influence on the slope of this linear relation. | 李忠珍 唐孝威 | 1988 | Chinese Physics Letters1988，5，4： | 0 |
| 16 | Instability of relativistic electron beam with strong magnetic field显示文摘Stability criteria for a weak relativistic beam-plasma interaction in a strong magnetic field are found. Two beam modes occur, ω≈Kzc and ω≈kzc-ωc. The dispersion equation of electrostatic two-stream is exactly solved with analytical method. | H.L.Berk | 2000 | Chinese Science Bulletin2000，45，1： | 0 |
| 17 | Relations between two types of polarized partitions显示文摘It is shown that close links exist between two important types of polarized partition relations of higher dimensions. | 张树果 C.A.DiPrisco | 1999 | Science China Mathematics1999，42，5： | 0 |
| 18 | TRANSVERSE MODES IN PHASE-CONJUGATION RESONATOR(PCR) WITH FINITE APERTUREA(Ⅰ)——MATRIX EIGEN-EQUATION OF SELF-CONSISTENT FIELD显示文摘Based on 'the matrix theory for the propagation of a scalar light wave in a system consisting of plane screens (cylindrical coordinates)' proposed by one of the authors (1981), the propagation of the self-consistent field in PCR is analyzed, and a matrix eigen-equation of the self-consistent field is presented. By solving the eigen-equation, the axisymmetrical PCR with finite aperture is calculated, and the diffraction losses, phase shifts, relative amplitude and phase distributions on each mirror surface of various order transverse modes (including high-order modes, whose l≥2, p≥1) are introduced.A quasi-equivalence relation of PCR is also given. According to this relation, some characteristics (as the diffraction loss, the field distribution on the surface of spherical mirror) of all transverse modes in a PCR are just the same as those in some of the other PCR with different g1.Some examples of calculation results are also given. They show that (ⅰ) the convengence of the above-mentioned equation | 李先枢 徐家进 高燕球 | 1990 | Science China Mathematics1990，33，8： | 0 |
| 19 | INVESTIGATION OF LINEAR ION BERNSTEIN WAVE IN KT-5B TOKAMAK显示文摘Linear ion Bernstein waves have been successfully excited in KT-5B tokamak by a toroidal current antenna.Ion Bernstain waves were detected by two rf Langmuir probes and identified by their exciting region and their dispersion relation.The ion temperature profile in the tokamak has been obtained from the dispersion relation of ion Bernstein wave in agreement with the measuring by an electrostatic ion probe. | 刘万东 闻一之 万树德 俞昌旋 | 1989 | Chinese Physics Letters1989，6，5： | 0 |
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