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	1. Theoretical Derivation of The Rational Slope Curve for The Oval-shaped Deep Open Pits
	YUE Shuyu,ZHANG Shixiong,REN Gaofeng
	Mechanics 14 March 2005
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	Abstract:The mechanical analysis of the oval-shaped deep open pit slope is presented in this paper. Based on the theory of elasticity, the circumference stresses at the edge of the oval-shaped open pit caused by the deadweight of the rock and the horizontal virgin stress are derived. Then considering the critical sliding conditions of the infinitesimal element, the first order differential equation, which defined the relations between the depth and the radius of curvature of the slope, is obtained. Through the particular case study, it is found that the slope curve function obtained theoretically is rational.
	TO cite this article:YUE Shuyu,ZHANG Shixiong,REN Gaofeng. Theoretical Derivation of The Rational Slope Curve for The Oval-shaped Deep Open Pits[OL].[14 March 2005] http://en.paper.edu.cn/en_releasepaper/content/1688


	2. DETECTION OF HYDROGEN CONTENT IN COAL BY USING NEUTRON METHOD
	Sang Haifeng,Wang Fuli,Liu Linmao
	Mechanics 08 November 2004
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	Abstract:This paper introduces the detection method of Hydrogen content in coal by using neutron method. The detection model of Hydrogen content in coal based on BP neural network which is optimized by Genetic Algorithms was put forward, and the research of verifying the model was made by comparing the practical measured date of coal in power plant. The results show that the detection precision using this model is 0.2%.
	TO cite this article:Sang Haifeng,Wang Fuli,Liu Linmao. DETECTION OF HYDROGEN CONTENT IN COAL BY USING NEUTRON METHOD[OL].[ 8 November 2004] http://en.paper.edu.cn/en_releasepaper/content/1213

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	3. Cyclotron Autoresonance Maser (CARM) Amplifier with Outer-Slotted Coaxial Waveguide
	Chunrong Qiu,Shi-Chang Zhang
	Mechanics 19 October 2004
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	Abstract:A self-consistent nonlinear theory is described for a cyclotron autoresonance maser (CARM) amplifier with outer-slotted coaxial waveguide is presented. Typical simulation results, by utilizing an electron beam with voltage of 90KVand current of 50A, indicate the possibility with peak power of 773 KW and a saturated gain of 49 dB. The influence of the axial velocity spread decreases the peak power, efficiency, and saturated gain. Simulation also shows that the efficiency of the outer-slotted-coaxial waveguide CARM amplifier may be increased from 17.17% to 23.87% by tapering the magnetic field.
	TO cite this article:Chunrong Qiu,Shi-Chang Zhang. Cyclotron Autoresonance Maser (CARM) Amplifier with Outer-Slotted Coaxial Waveguide[OL].[19 October 2004] http://en.paper.edu.cn/en_releasepaper/content/1152


	4. The Research of Noise in The PLL
	Lu Shiqiang ,Yang Guoyu
	Mechanics 22 September 2004
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	Abstract:This articles introducs the basic concepts and the phase noise in phase-locked loops (PLLs). It focus on a detailed examination of two critical specifications associated with PLLs : phase noise and reference spurs. What causes them and how can they be minimized Also it inculdes an example .
	TO cite this article:Lu Shiqiang ,Yang Guoyu. The Research of Noise in The PLL[OL].[22 September 2004] http://en.paper.edu.cn/en_releasepaper/content/1085


	5. A suboptimal joint demodulation decoding algorithm for MIMO channels
	Zhonghui Mei,Lenan Wu
	Mechanics 26 August 2004
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	Abstract:We propose a suboptimal joint demodulation decoding (JDD) algorithm for multiple-input, multiple-output (MIMO) channels. Compared with the optimal JDD, our algorithm can decrease the computational complexity significantly in the large number of transmit antennas, thus offering favorable performance/complexity characteristics. Computer simulation results are provided to compare the performance of the optimal JDD, suboptimal JDD, and the conventional separable soft-input soft-output demodulation decoding (SSDD).
	TO cite this article:Zhonghui Mei,Lenan Wu. A suboptimal joint demodulation decoding algorithm for MIMO channels[OL].[26 August 2004] http://en.paper.edu.cn/en_releasepaper/content/990


	6. Joint Source-Channel Decoding of Huffman Codes with LDPC Codes
	Zhonghui Mei,Lenan Wu
	Mechanics 21 June 2004
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	Abstract:In this paper, we present a joint source-channel decoding algorithm (JSCD) for LDPC codes by exploiting the redundancy of the Huffman coded sources.When the number of Huffman codes increases, just a moderate complexity is added for our algorithm by increasing the size of the lookup table, which is used to estimate the information bit probability based on the source redundancy.
	TO cite this article:Zhonghui Mei,Lenan Wu. Joint Source-Channel Decoding of Huffman Codes with LDPC Codes[OL].[21 June 2004] http://en.paper.edu.cn/en_releasepaper/content/839


	7. Retrospect of Transmission-line Equations Excited by an External Electromagnetic Field
	Xiaohua Wang,Bingzhong Wang
	Mechanics 11 June 2004
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	Abstract:This paper presents the development and existent problems of field-to-transmission line coupling equations. The approaches of different researchers are compared in this paper. And some suggestions for the future research in the area of EMC are given in the last.
	TO cite this article:Xiaohua Wang,Bingzhong Wang. Retrospect of Transmission-line Equations Excited by an External Electromagnetic Field[OL].[11 June 2004] http://en.paper.edu.cn/en_releasepaper/content/815


	8. LDPC Codes for Binary Markov sources
	Zhonghui Mei,Lenan Wu
	Mechanics 07 June 2004
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	Abstract:Abstract In this paper, we present a new joint-source channel decoding algorithm for LDPC codes by exploiting the redundancy of the Markov sources. Simulation results show that when there is more redundancy in the sources, better performance of the decoding algorithm can be obtained.
	TO cite this article:Zhonghui Mei,Lenan Wu. LDPC Codes for Binary Markov sources[OL].[ 7 June 2004] http://en.paper.edu.cn/en_releasepaper/content/794


	9. Joint souce-channel Turbo Coding of Vector Quantized images
	Zhonghui Mei,Lenan Wu
	Mechanics 07 June 2004
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	Abstract:In this paper, we first present an index assignment algorithm which is robust against channel errors. We name this algorithm as chain algorithm. Furthermore, by using this new algorithm to rearrange the order of codevectors in the codebook, the index bits of different position will have different error sensibilities to channel noise, and a good performance of image qualities transimitted over the noisy channel can be obtained after using turbo code to protect some significant bits of the index. Through numerical simulations, the qualities of the image transimitted over noisy channel can be improved without increasing any complexities.
	TO cite this article:Zhonghui Mei,Lenan Wu. Joint souce-channel Turbo Coding of Vector Quantized images[OL].[ 7 June 2004] http://en.paper.edu.cn/en_releasepaper/content/793


	10. Direct Design of Symmetrical Interacting Broader Bandwidth Parallel Diplexers
	Zhou Wensheng,Yi-Sheng Zhu
	Mechanics 12 March 2004
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	Abstract:Explicit design formulas are given for symmetrical broader bandwidth parallel diplexers, where the diplexer consists of two bandpass channels connected to a common port, and the two bandpass channels with same band width and operating at different center frequencies are derived from same lowpass prototype. The modified element values of the corresponding lowpass prototypes are expanded as power series in well defined band-separation factors separately, and the input admittances of the both channels are expressed as functions of the modified element values. To keep all zero reflection frequencies of the lowpass prototype as corresponding zero reflection frequencies of the corresponding channel, the coefficients for the power series are determined, and the explicit design formulas are given for all modified element values of the lowpass prototypes of the two channels. Meanwhile, additional impedance invertors are used to obtain a parallel realization.
	TO cite this article:Zhou Wensheng,Yi-Sheng Zhu. Direct Design of Symmetrical Interacting Broader Bandwidth Parallel Diplexers[OL].[12 March 2004] http://en.paper.edu.cn/en_releasepaper/content/454

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