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1990 Vol. 20, No. 3

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RECENT PROGRESS IN TOUGHENING RESEARCH OF STRUCTURAL CERAMICS
1990, 20(3): 289-302. doi: 10.6052/1000-0992-1990-3-J1990-028
Abstract(1646) PDF(876)
Abstract:
This paper provides a brief overview of research progress during the last decade in toughening analysis of structural ceramics. Primary emphasis is given to transformation toughening. Some suggestions are made for further investigation.
FROM PRINCIPAL AXIS REPRESENTATION TO ABSTRACT REPRESENTATION
1990, 20(3): 303-315. doi: 10.6052/1000-0992-1990-3-J1990-029
Abstract(1662) PDF(678)
Abstract:
The present paper offers a systematic method which can be used totransform results obtained by the principal axis method to frame-free abstract representations. Thus, this method helps further applications of the principal axis method.
CUBIC SPLINE COLLOCATION TECHNIQUE FOR PROBLEMS OF FLUID MECHANICS
1990, 20(3): 316-327. doi: 10.6052/1000-0992-1990-3-J1990-030
Abstract(2341) PDF(729)
Abstract:
This paper presents techniques for the numerical solution of problems in fluid mechanics using cubic spline collocation and some of their recent developments in this field.The main spline relations are presented and incorporated into solution procedures for fluid mechanics equations. The computational algorithm in every case is a tridiagonal matrix system amenable to efficient inversion methods. SADI method and a spline method of fractional steps in each coordinate direction as well as truncation errors and...
ON SOME AERODYNAMIC CHARACTERISTICS OF ATMOSPHERIC BOUNDARY LAYER
1990, 20(3): 328-340. doi: 10.6052/1000-0992-1990-3-J1990-031
Abstract(3331) PDF(598)
Abstract:
In this paper, general properties of the atmospheric boudary layer (ABL)undcr homogeneous, surface conditions are described,including a comparison of ABL with aerodynamic boundary layer. Also, the aerodynamic characteristics of ABL over the surfaces which experience a sudden change in roughness and over terrain are discussed. With respect to ABL dynamics, some problems, important for further studies, are proposed by the author.
APPLICATION OF THE BOUNDARY ELEMENT METHOD TO THE PROBLEMS OF MECHANICS OF COMPOSITE MATERIALS
1990, 20(3): 341-350. doi: 10.6052/1000-0992-1990-3-J1990-032
Abstract(1654) PDF(752)
Abstract:
Applications of the boundary element method to solve the problems of micromcchanics and macromechanics of composite materials and mechanics of composite structures are discussed in this paper. The main advantages and some limitations of this method when applied to the problems of mechanics of composite materials are also outlined.
1990, 20(3): 351-351. doi: 10.6052/1000-0992-1990-3-J1990-033
Abstract(1705) PDF(578)
Abstract:
BIOMECHANICS OF HUMAN LUMBAR SPINE: SOME BASIC CONCEPTS
1990, 20(3): 352-366. doi: 10.6052/1000-0992-1990-3-J1990-034
Abstract(2299) PDF(677)
Abstract:
The present status and recent advances of some basic aspects of biomcchanics of human lumbar spine are reviewed and evaluated. First, the mechanical properties of the componts of lumbar spine, inclding vertebral body, intervertebral disc, vertebral arch, ligaments and spinal cord, are described. Second, a discussion on Kinematics and Kinetics of lumbar spine is presented. Finally, the studies of mechanical models, mainly finite element models, of lumbar spine, arc briefly surveyed.
THE PRESENT STATUS AND FUTURE DEVELOPMENTS OF THERMAL PLASMA SCIENCE AND TECHNOLOGY
1990, 20(3): 367-372. doi: 10.6052/1000-0992-1990-3-J1990-035
Abstract(1688) PDF(704)
Abstract:
An overview of the present status and future developments of thermal plasma science and technology is given. Some industrial applications and thermal plasma generators are described.
PROGRESS IN LOW-TEMPERATURE PLASMA PHYSICS
1990, 20(3): 373-378. doi: 10.6052/1000-0992-1990-3-J1990-036
Abstract(1506) PDF(819)
Abstract:
A survey of the present status, development and applications of low-temperature plasma physics is given.
1990, 20(3): 378-378. doi: 10.6052/1000-0992-1990-3-J1990-037
Abstract(1511) PDF(588)
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THE 9TH INTERNATIONAL SYMPOSIUM ON PLASMA CHEMISTRY (ISPC-9)
1990, 20(3): 379-385. doi: 10.6052/1000-0992-1990-3-J1990-038
Abstract(1618) PDF(659)
Abstract:
A brief summary of the papers and activities of the 9th international symposium on plasma chemistry is presented. Some views on the development in this field are given.
1990, 20(3): 386-393. doi: 10.6052/1000-0992-1990-3-J1990-039
Abstract(1170) PDF(571)
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1990, 20(3): 393-393. doi: 10.6052/1000-0992-1990-3-J1990-040
Abstract(1023) PDF(650)
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1990, 20(3): 394-400. doi: 10.6052/1000-0992-1990-3-J1990-041
Abstract(1790) PDF(647)
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1990, 20(3): 401-416. doi: 10.6052/1000-0992-1990-3-J1990-042
Abstract(1029) PDF(654)
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1990, 20(3): 417-424. doi: 10.6052/1000-0992-1990-3-J1990-043
Abstract(1139) PDF(754)
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1990, 20(3): 425-430. doi: 10.6052/1000-0992-1990-3-J1990-044
Abstract(1038) PDF(623)
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1990, 20(3): 431-431. doi: 10.6052/1000-0992-1990-3-J1990-045
Abstract(1021) PDF(669)
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