Showing papers by "Hefei University of Technology published in 1994"
TL;DR: In this paper, the authors proposed that the Tan-Lu fault zone is a major transcurrent fault developed on the inner, continental side of the northwestern circum-Pacific margin, based on the shape and extension of the fault zone, correlation of blocks on either side of a zone, Late Jurassic to Early Cretaceous displacement time, and the sinistral fault origin of the northward-projecting Northern Jiangsu Massif.
Abstract: The Tan-Lu fault zone, with hundreds of km of sinistral displacenent, is one of the largest continental strike-slip faults in the world. Four tectonic models recently proposed for the fault zone are reviewed in this paper: (1) intracontinental transcurrent fault, (2) suture line, (3) intracontinental transform fault, (4) and collision-related indentation. We propose that the Tan-Lu fault zone is a major transcurrent fault developed on the inner, continental side of the northwestern circum-Pacific margin. This conclusion is based on the shape and extension of the fault zone, correlation of blocks on either side of the zone, Late Jurassic to Early Cretaceous displacement time, and the sinistral fault origin of the northward-projecting Northern Jiangsu Massif.
210 citations
TL;DR: The Ponglai Group is a low-grade metasedimentary cover to high-grade Archaean-Mid Proterozoic basement and the age of deposition has been the subject of speculation as discussed by the authors.
10 citations
05 Dec 1994
TL;DR: The author proposes to adopt the fuzzy control strategy to design the environment recognition and collision avoidance system for the mobile robots.
Abstract: Mobile robots are widely employed in fully automatic factories and FMS to carry out various kinds of transportation tasks. While they are working mobile robots have to recognize the environment and to avoid colliding-accidents First of all, this paper discuss the principles of ultrasonic ranging. This paper then presents a detecting method by using ultrasonic sensor array and to install the array on a mobile robot. Not only can it detect the distance and the direction from the obstacles but it can also detect the shape of the obstacles. On the other hand in this paper, the actions taken by a human driver to avoid collision accidents while driving a car are analyzed. Based on these analyses, the author proposes to adopt the fuzzy control strategy to design the environment recognition and collision avoidance system for the mobile robots. >
4 citations
05 Dec 1994
TL;DR: In this paper, a 3D time/frequency representation method of PCG (phonocardiogram) is proposed. But the method is not suitable for medical training, research and diagnosis.
Abstract: Using the short-time FFT to processing the signal, this paper introduces a 3D time/frequency representation method of PCG (phonocardiogram). The filter-bank summation method is adopted to analyse the heart sound. The 3D imaging gives all frequency components with their intensity in time series. In comparison with traditional PCG this 3D PCG can capture many important quantitative features. The method described in this paper is simple, feasible and characterized by its real-time performance, therefore, shows its good prospect for application in medical training, research and diagnosis. >
4 citations
05 Dec 1994
TL;DR: It is pointed out that the data replication technique is not only applicable to fast image analysis, but is also general enough to be applicable to a large class of graph-theoretic operation problems.
Abstract: Proposes a data-parallel algorithm and a replicated data algorithm for the graph-theoretic operation of computing single-source shortest paths, and demonstrates the generality of the data replication technique by applying it to such a problem; then computes and discusses the speedup of the replicated data algorithm over the data-parallel algorithm; and, finally, points out that the data replication technique is not only applicable to fast image analysis, but is also general enough to be applicable to a large class of graph-theoretic operation problems. >
2 citations
01 Jan 1994
TL;DR: In this article, the similarity of electric conductivity for the 3wt% short carbon fibre-Ag composite and 3wwt% graphite-silver contact was reported, showing that the electric life of Ag-carbon fibre is much higher than silver-graphite at the same Ag contact.
Abstract: The electric contact is always made of silver and graphite, the electric conductivity of contact materials decreases as the graphite content increased. The hardness of silver-graphite is low, for example, the hardness of the 3wt% graphite-silver is HB 24.5-39.8MPa, and the electric conductivity is 72% IACS. The present work reports the similarity of electric conductivity for the 3wt% short carbon fibre-Ag composite and 3wt% graphite-silver. However, the hardness of the short carbon fiber-Ag composite is two times harder than that of graphite-silver. The specific gravity of graphite is 2.2 g/cm3, and that of carbon fibre is 1.75 g/cm3, so the 3wt% short carbon fibre-Ag composite contact will still save 5-7%Ag. The electric life of Ag-carbon fibre is much higher than silver-graphite at the same Ag contact.
2 citations
TL;DR: In this paper, the state equation for the open cylindrical shells with four clamped edges is established and an identical exact solution is obtained for the thin, moderately thick and thick laminated OCC shells.
Abstract: Giving up any assumptions about displacement models and stress distribution, based on Refs. [1] and [2] and introducing δ-function into the present study, the state equation for the open cylindrical shells with four clamped edges is established. An identical exact solution is obtained for the thin, moderately thick and thick laminated open cylindrical shells.
1 citations
05 Dec 1994
TL;DR: This paper uses a random stochastic ANN and modified mean field annealing to solve the global optimal solution of the multisensor multitarget tracking problem and it needs fewer iteration times.
Abstract: In this paper, the multisensor multitarget tracking problem is considered. The data association is most important and difficult in the multitarget tracking environment. We first formulate it with the maximum likelihood method, and then we use a random stochastic ANN and modified mean field annealing to solve the optimal solution. Compared with other nonlinear optimization algorithms, this method can achieve the global optimal solution and it needs fewer iteration times. >
1 citations
05 Dec 1994
TL;DR: An improved back-propagation (BP) algorithm for neural networks is proposed that gives a faster learning speed as compared with the usual BP algorithm by including a momentum method, a cumulative back- Propagation method, and a composite method.
Abstract: An improved back-propagation (BP) algorithm for neural networks is proposed. This algorithm gives a faster learning speed as compared with the usual BP algorithm. This done by including a momentum method, a cumulative back-propagation method, and a composite method. >
1 citations
TL;DR: In this article, an anti-adhesive wear lubricant (NL2) was used in deep drawing, containing as additives B, N compounds and zinc (cyclic) polymethylenedithiophosphate.
Abstract: This paper reports on an anti-adhesive wear lubricant (NL2) used in deep drawing, containing as additives B, N compounds and zinc (cyclic) polymethylenedithiophosphate. It covers the synthesis of these additives, their properties, and the friction and wear mechanism of NL2 in the deep-drawing process. These are studied by means of a strip bending drawing tester, a four-ball tester, and IR, SEM, and EDAX analysis. The results show that the new additive gives good adhesive wear protection in deep drawing.
1 citations
TL;DR: A kind of decompiling method is presented, in which the techniques of library-function pattern recognition, intermediate language, symbolic execution, rule-based data type recovery, program transformation, and knowledge engineering are separately applied to different phases of decompiler.
Abstract: Decompiling, as a means of analysing and understanding software, has great practical value. This paper presents a kind of decompiling method offered by the authors, in which the techniques of library-function pattern recognition, intermediate language, symbolic execution, rule-based data type recovery, program transformation, and knowledge engineering are separately applied to different phases of decompiling. Then it is discussed that the techniques of developing expert systems are adopted to build a decompiling system shell independent of the knowledge of language and program running environment. The shell will become a real decompiler, as long as the new knowledge of application environment is interactively acquired.
TL;DR: A new algorithm for generatingk-aryM sequences is given that a new method is used that the main cycle is extended by joining to it a subset of cycles instead of the classical one in which the main cycles are extended by joined to it one cycle.
Abstract: A new algorithm for generatingk-aryM sequences is given. In the algorithm a new method is used that the main cycle is extended by joining to it a subset of cycles instead of the classical one in which the main cycle is extended by joining to it one cycle. The algorithm reduces the times of choosing bridging states and accelerates the speed of joining cycles.