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< Page ,Total 242 >
FRACTURE ANGLE OF CRACKS OF THE 2 CRACKS INTERACTION PROBLEM IN A UNIDIRECTIONAL FIBER-REINFORCED COMPOSITE-MATERIAL SCIE Scopus
期刊论文 | 1995 , 72 (2) , R39-R43 | INTERNATIONAL JOURNAL OF FRACTURE
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GB/T 7714 MA, H , ZHAO, LG , CHEN, YH . FRACTURE ANGLE OF CRACKS OF THE 2 CRACKS INTERACTION PROBLEM IN A UNIDIRECTIONAL FIBER-REINFORCED COMPOSITE-MATERIAL [J]. | INTERNATIONAL JOURNAL OF FRACTURE , 1995 , 72 (2) : R39-R43 .
MLA MA, H 等. "FRACTURE ANGLE OF CRACKS OF THE 2 CRACKS INTERACTION PROBLEM IN A UNIDIRECTIONAL FIBER-REINFORCED COMPOSITE-MATERIAL" . | INTERNATIONAL JOURNAL OF FRACTURE 72 . 2 (1995) : R39-R43 .
APA MA, H , ZHAO, LG , CHEN, YH . FRACTURE ANGLE OF CRACKS OF THE 2 CRACKS INTERACTION PROBLEM IN A UNIDIRECTIONAL FIBER-REINFORCED COMPOSITE-MATERIAL . | INTERNATIONAL JOURNAL OF FRACTURE , 1995 , 72 (2) , R39-R43 .
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A better subgraph of the minimum weight triangulation SCIE
会议论文 | 1995 , 959 , 452-455 | 1st Annual International Computing and Combinatorics Conference (COCOON 95)
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Abstract :

Given a set of a points in the plane, it is shown that the csc(2 pi/7)-skeleton of S is a subgraph of the minimum weight triangulation of S. We improve the results in [2] that the root 2-skeleton of S is a subgraph of the minimum weight triangulation of S.

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computational geometry Euclidean plane point sets minimum weight triangulation

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GB/T 7714 Yang, BT . A better subgraph of the minimum weight triangulation [C] . 1995 : 452-455 .
MLA Yang, BT . "A better subgraph of the minimum weight triangulation" . (1995) : 452-455 .
APA Yang, BT . A better subgraph of the minimum weight triangulation . (1995) : 452-455 .
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ELIMINATION OF THE EFFECTS OF GEOMETRY ON FRACTURE-TOUGHNESS BY CONTINUOUS DAMAGE SCIE
期刊论文 | 1995 , 14 (3) , 473-490 | EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
WoS CC Cited Count: 1
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Abstract :

Detailed crack tip stress and strain fields are generated for different plane strain fracture specimens. These fields are matched approximately by a tri-parameter characterization of (J, Q, k) in the microstructurally significant region of ductile material. Continuous damage mechanics and the crack tip field of (J, Q, a) are used to quantify constraints in different fracture speciemens and the effect of specimen configuration on the onset of crack growth. The relationships between the theoretical fracture toughness J(c)(HRR) (critical J integral value in HRR field) and the integral values of J in actual specimens are established by an assumption that fracture initiation occurs at the same damage values in both specimens and HRR field. An application to experimental data is explored in this paper.

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GB/T 7714 MA, F , KUANG, ZB . ELIMINATION OF THE EFFECTS OF GEOMETRY ON FRACTURE-TOUGHNESS BY CONTINUOUS DAMAGE [J]. | EUROPEAN JOURNAL OF MECHANICS A-SOLIDS , 1995 , 14 (3) : 473-490 .
MLA MA, F 等. "ELIMINATION OF THE EFFECTS OF GEOMETRY ON FRACTURE-TOUGHNESS BY CONTINUOUS DAMAGE" . | EUROPEAN JOURNAL OF MECHANICS A-SOLIDS 14 . 3 (1995) : 473-490 .
APA MA, F , KUANG, ZB . ELIMINATION OF THE EFFECTS OF GEOMETRY ON FRACTURE-TOUGHNESS BY CONTINUOUS DAMAGE . | EUROPEAN JOURNAL OF MECHANICS A-SOLIDS , 1995 , 14 (3) , 473-490 .
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CHARACTERIZATION OF PBTIO3 CRYSTALLITES IN-SITU CONFINED GROWN IN AMORPHORS SILICA SCIE
期刊论文 | 1995 , 19 (3-4) , 113-117 | FERROELECTRICS LETTERS SECTION
WoS CC Cited Count: 3
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Abstract :

PbO-TiO2-SiO2 glass-ceramic with PT crystallites in-situ confined grown from silica matrix has been synthesized by sol-gel method. Crystallization process of PT crystallites is studied by XRD and DTA. From XRD data it has been found that the c axis length and cia ratio of PT tetragonal structure decrease obviously with increase of silica content. The phase transition temperature of PbTiO3 nanocrystallites from tetragonal to cubic and the transition latent heat all decrease dramatically. The strain and crystal size of the confined grown PT crystallites are calculated by the method of Wilson and Scherrer respectively. The special confined environment where crystal grains grow and the size effect are thought to be the reason of the feature of the PbTiO3 in silica.

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GB/T 7714 YAO, K , ZHANG, LY , YAO, X . CHARACTERIZATION OF PBTIO3 CRYSTALLITES IN-SITU CONFINED GROWN IN AMORPHORS SILICA [J]. | FERROELECTRICS LETTERS SECTION , 1995 , 19 (3-4) : 113-117 .
MLA YAO, K 等. "CHARACTERIZATION OF PBTIO3 CRYSTALLITES IN-SITU CONFINED GROWN IN AMORPHORS SILICA" . | FERROELECTRICS LETTERS SECTION 19 . 3-4 (1995) : 113-117 .
APA YAO, K , ZHANG, LY , YAO, X . CHARACTERIZATION OF PBTIO3 CRYSTALLITES IN-SITU CONFINED GROWN IN AMORPHORS SILICA . | FERROELECTRICS LETTERS SECTION , 1995 , 19 (3-4) , 113-117 .
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A NEW METHOD TO DEAGGLOMERATION OF PBTIO3 ULTRAFINE POWDERS SCIE Scopus
期刊论文 | 1995 , 19 (3-4) , 95-100 | FERROELECTRICS LETTERS SECTION
WoS CC Cited Count: 1
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Abstract :

An innovative method for deagglomeration of ultrafine powders was developed in this paper. The method was based on electrohydraulic forces produced by electric breakdown discharge between two electrodes submerged in liquid. By controlling the process parameters (voltage, electrode separation and reaction time), PbTiO3 ultrafine powders with spherical, tabular and aciculate shape were successfully deagglomerated. Two ways based on centrifugal sedimentation and laserlight scattering were used to determine the particle size distribution. Scanning electron microscope (SEM) images showed that the agglomeration of PT powders was greatly reduced.

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GB/T 7714 WANG, SS , LIU, HL , ZHANG, LY et al. A NEW METHOD TO DEAGGLOMERATION OF PBTIO3 ULTRAFINE POWDERS [J]. | FERROELECTRICS LETTERS SECTION , 1995 , 19 (3-4) : 95-100 .
MLA WANG, SS et al. "A NEW METHOD TO DEAGGLOMERATION OF PBTIO3 ULTRAFINE POWDERS" . | FERROELECTRICS LETTERS SECTION 19 . 3-4 (1995) : 95-100 .
APA WANG, SS , LIU, HL , ZHANG, LY , YAO, X . A NEW METHOD TO DEAGGLOMERATION OF PBTIO3 ULTRAFINE POWDERS . | FERROELECTRICS LETTERS SECTION , 1995 , 19 (3-4) , 95-100 .
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PREPARATION AND OPTICAL-PROPERTIES OF CDXHG1-XTE DOPED SILICA GLASS EI SCIE Scopus
期刊论文 | 1995 , 19 (3-4) , 83-87 | FERROELECTRICS LETTERS SECTION
WoS CC Cited Count: 1
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Abstract :

In this paper, the CdxHg1-xTe (x=1-0.7) doped silica glass was prepared through two step sol-geI process and in-situ growth technique from tetraethoxysilane (TEOS), cadmium acetate, mercury acetate and telluric acid. The influence of various factors on the glass was studied. The structure of the microcrystals was investigated by XRD. The absorption and transmittance spectrum of the composite showed that the shift of absorption edge was in conformity with the quantum size effect. The third-order nonlinear optical susceptibility X((3)) was measured by the degenerate four wave mixing (DFWM). The values of X((3)) was in the range of 10(-11),10(-12) esu at wavelength of 1.06 mu m.

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GB/T 7714 LIU, HL , WANG, SS , ZHANG, LY et al. PREPARATION AND OPTICAL-PROPERTIES OF CDXHG1-XTE DOPED SILICA GLASS [J]. | FERROELECTRICS LETTERS SECTION , 1995 , 19 (3-4) : 83-87 .
MLA LIU, HL et al. "PREPARATION AND OPTICAL-PROPERTIES OF CDXHG1-XTE DOPED SILICA GLASS" . | FERROELECTRICS LETTERS SECTION 19 . 3-4 (1995) : 83-87 .
APA LIU, HL , WANG, SS , ZHANG, LY , YAO, X . PREPARATION AND OPTICAL-PROPERTIES OF CDXHG1-XTE DOPED SILICA GLASS . | FERROELECTRICS LETTERS SECTION , 1995 , 19 (3-4) , 83-87 .
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Constrained independence system and triangulations of planar point sets EI SCIE Scopus
会议论文 | 1995 , 959 , 41-50 | 1st Annual International Computing and Combinatorics Conference (COCOON 95)
WoS CC Cited Count: 7
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Abstract :

We propose and study a new constrained independence system. We obtain a sequence of results, including a matching theorem for bases of the system and introducing a set of light elements which give a lower bound for the objective function of a minimization problem in the system. We then demonstrate that the set of triangulations of a planar point set can be modeled as constrained independence systems. The corresponding minimization problem in the system is the well-known minimum weight triangulation problem. Thus, we obtain two matching theorems for triangulations and a set of light edges (or light triangles) that give a lower bound for the minimum weight triangulation. We also prove directly a third matching theorem for triangulations. We show that the set of light edges is a superset of some subsets of edges of a. minimum weight triangulation that were studied before.

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GB/T 7714 Cheng, SW , Xu, YF . Constrained independence system and triangulations of planar point sets [C] . 1995 : 41-50 .
MLA Cheng, SW et al. "Constrained independence system and triangulations of planar point sets" . (1995) : 41-50 .
APA Cheng, SW , Xu, YF . Constrained independence system and triangulations of planar point sets . (1995) : 41-50 .
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PFFM and quasi-Morishima matrices EI SCIE Scopus
会议论文 | 1995 , 959 , 392-395 | 1st Annual International Computing and Combinatorics Conference (COCOON 95)
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In 1983, Greenberg [1] advanced an open problem ''We do not have simple criterion that will enable us to characterize which elements of PFFM are quasi-Morishima and which are not.'' In this paper, two algorithms of time complexity O(e) are provided. The algorithms can be used to decide which PFFM is quasi-Morishima and which is not. Here e denotes the number of edges of the researched graph. So we give an answer for the open problem.

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GB/T 7714 Wang, H , You, ZY . PFFM and quasi-Morishima matrices [C] . 1995 : 392-395 .
MLA Wang, H et al. "PFFM and quasi-Morishima matrices" . (1995) : 392-395 .
APA Wang, H , You, ZY . PFFM and quasi-Morishima matrices . (1995) : 392-395 .
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An asynchronous parallel method for linear systems EI SCIE Scopus
会议论文 | 1995 , 959 , 372-378 | 1st Annual International Computing and Combinatorics Conference (COCOON 95)
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Abstract :

In this paper, we present a new asynchronous parallel method for solving linear system of equations Ax = b, where A is a nonsingular H-matrix. The method conbines usual asynchonous method [2] and multisplittings of matrices [5]. Convergence is established, rate of convergence is discussed, the region of relaxation parameter omega is given.

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GB/T 7714 You, ZY , Wang, CD . An asynchronous parallel method for linear systems [C] . 1995 : 372-378 .
MLA You, ZY et al. "An asynchronous parallel method for linear systems" . (1995) : 372-378 .
APA You, ZY , Wang, CD . An asynchronous parallel method for linear systems . (1995) : 372-378 .
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EXISTENCE OF LOCALIZED MODES IN A PURELY ANHARMONIC CHAIN SCIE Scopus CSCD
期刊论文 | 1995 , 12 (2) , 95-97 | CHINESE PHYSICS LETTERS
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For a monatomic one-dimensional chain of particles interacting via a nearest-neighbor purely anharmonic potential of any even order (such a chain is called purely anharmonic chain), it is proved that there really exist exact localized modes.

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GB/T 7714 WANG, SF . EXISTENCE OF LOCALIZED MODES IN A PURELY ANHARMONIC CHAIN [J]. | CHINESE PHYSICS LETTERS , 1995 , 12 (2) : 95-97 .
MLA WANG, SF . "EXISTENCE OF LOCALIZED MODES IN A PURELY ANHARMONIC CHAIN" . | CHINESE PHYSICS LETTERS 12 . 2 (1995) : 95-97 .
APA WANG, SF . EXISTENCE OF LOCALIZED MODES IN A PURELY ANHARMONIC CHAIN . | CHINESE PHYSICS LETTERS , 1995 , 12 (2) , 95-97 .
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