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Search Results: 1 - 10 of 28576 matches for " SUN Jiancheng "
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A Linear Resection-Intersection Bundle Adjustment Method
Shigang Liu,Jiancheng Sun,Jianwu Dang
Information Technology Journal , 2008,
Abstract: Bundle adjustment is one of the main tools used for multiple view reconstruction. It seeks to refine the estimation of the 3D scene and the visual parameters. The main drawback of this technique, due to nonlinear optimization, is its large amount of computation. To solve the problem, we propose a linear resection-intersection bundle adjustment method (LRI) for photogrammetric bundle adjustment. The method refines linearly the projection matrices and the space points alternately and the jointly optimal estimations are finally obtained. Important features are that (i) the original cost function is preserved and (ii) the method is linear. The method has been tested with simulated data and the results demonstrate its accuracy and efficiency.
The Theory of Membership Degree of Γ-Conclusion in Several n-Valued Logic Systems  [PDF]
Jiancheng Zhang
American Journal of Operations Research (AJOR) , 2012, DOI: 10.4236/ajor.2012.22017
Abstract: Based on the analysis of the properties of Γ-conclusion by means of deduction theorems, completeness theorems and the theory of truth degree of formulas, the present papers introduces the concept of the membership degree of formulas A is a consequence of Γ (or Γ-conclusion) in Lukasiewicz n-valued propositional logic systems, Godel n-valued propositional logic system and the R0 n-valued propositional logic systems. The condition and related calculations of formulas A being Γ-conclusion were discussed by extent method. At the same time, some properties of membership degree of formulas A is a Γ-conclusion were given. We provide its algorithm of the membership degree of formulas A is a Γ-conclusion by the constructions of theory root.
Surveillance and Correlation of Antibiotic Consumption and Resistance of Acinetobacter baumannii complex in a Tertiary Care Hospital in Northeast China, 2003–2011
Jiancheng Xu,Zhihui Sun,Yanyan Li,Qi Zhou
International Journal of Environmental Research and Public Health , 2013, DOI: 10.3390/ijerph10041462
Abstract: This study investigated the changes in resistance of Acinetobacter baumannii complex and the association of carbapenem-resistant A. baumannii complex (CRAB) infection and hospital antimicrobial usage from 2003 to 2011 in a tertiary care hospital in northeast China. In vitro susceptibilities were determined by disk diffusion test and susceptibility profiles were determined using zone diameter interpretive criteria, as recommended by the Clinical and Laboratory Standards Institute (CLSI). Data on consumption of various antimicrobial agents, expressed as defined daily dose/1,000 patients/day, were collected retrospectively from hospital pharmacy computer database. Most of 2,485 strains of A. baumannii complex were collected from respiratory samples (1,618 isolates, 65.1%), secretions and pus (465, 18.7%) over the years. The rates of antimicrobial resistance in A. baumannii complex increased significantly over the years. The rates of CRAB were between 11.3% and 59.1% over the years. The quarterly use of anti-pseudomonal carbapenems, but not other classes of antibiotics, was strongly correlated with the increase of quarterly CRAB (β? = 1.661; p < 0.001). Dedicated use of anti-pseudomonal carbapenems would be an important intervention to control the increase of CRAB.
A Comparative Study of “as” and “Which” in Non-Restrictive Relative Clauses  [PDF]
Jiancheng Wang, Junhong Tang
Open Journal of Modern Linguistics (OJML) , 2013, DOI: 10.4236/ojml.2013.34046
Abstract: Both “as” and “which” can introduce a non-restrictive relative clause. But each of them has its own particular function in meaning, part of speech and sentence structure. Therefore sometimes they can have similar usage in a certain situation, while most often they are quite different and can not be used alternatively.
Study on Balance and Improvement of College English Class in China  [PDF]
Junhong Tang, Jiancheng Wang
Open Journal of Social Sciences (JSS) , 2014, DOI: 10.4236/jss.2014.29043
Abstract: Considering the current problems in English class, \"5C\" strategies, cooperation, competition, consideration, creativeness and continuity are used to balance and improve the English class in China on the basis of some fundamentals like “Symbiotic Effect”, “Niche”, “Zone of the Optimum” and “Flowerpots Effect”. Meanwhile, it is also very important and urgent to offer opportunities of further study for English teachers in order to balance and improve the English class according to “Edge Effect”.
Love in Spenser’s Amoretti  [PDF]
Jiancheng Wang, Zhengshuan Li
Advances in Literary Study (ALS) , 2014, DOI: 10.4236/als.2014.21006

Being a sonnet cycle of love with a detailed description of the lady’s physical beauty and the lover’s happy feelings, Amorettiis a story of love between earthlings which is aimed at marriage. Meanwhile, Spenser sanctifies the love by Platonizing and Christianizing the lady. Thus it is clear that the love in the mind of Spenser is not just an earthly one or a heavenly one separately, but both, and, a combination of both earthly love and sacred love.

The Importance of Environmental English Public Signs to Xiong’an New Area’s Ecological Environment in China  [PDF]
Junhong Tang, Jiancheng Wang
Open Journal of Ecology (OJE) , 2017, DOI: 10.4236/oje.2017.713047
Abstract: With the establishment and development of Xiong’an New Area in China, more foreign industries and visitors will be attracted to come here. Investigations made in our study show that the environmental English public signs are very important. They can offer directions for foreigners who can’t understand Chinese well because they have these three functions: indication, suggestion and prohibition. In order to help Xiong’an New Area play its “eco card”, the translators are supposed to attach great importance to the translation of environmental English public signs.
An algorithm for recursive least squares support vector machine multiuser detection based on modifying kernel

Liu Feng,Zhang Taiyi,Sun Jiancheng,

电子与信息学报 , 2003,
Abstract: To solve the problems of the complexity of SVM-MUD model and the number of support vectors, a new algorithm for nonlinear multiuser detection is proposed in the paper. The algorithm introduced the forgetting factor to get the support vectors at the first training. The number of support vectors is decreased by 28%. Then, the structure of the Riemannian geometry is introduced in the input space, and using the Riemannian geometric modifies the kernel function of the classifier and gets less improved support vectors at the second training. The algorithm simplifies the SVM-MUD model of the algorithm at the cost of only a little more bit error rate and decreases the computational complexity. Simulation results illustrate that the algorithm has an excellent effect on multipath interference suppression and shows that its performance can closely match that of the optimal detector.
Sun Jiancheng,Li Enke,Li Peixian,Wang Yuqing,Zhang Heming,Jiang Wenqing,Dai Xianying,Hu Huiyong
半导体学报 , 1999,
Abstract: Photochemicalvapordepositionisoneofthelowtemperaturetechnologies,withoutanyknock-ondamagecausedbyhigh-energyion...
Prediction Algorithm for Laser Chaotic Based on Stationary Wavelet Transform and Reconstructed Phase Space

Xiang Zheng,Zhang Taiyi,Sun Jiancheng,

光子学报 , 2005,
Abstract: A new algorithms for laser chaotic time series prediction was presented. The origin time series was decomposed as the measurement coefficients and wavelet coefficients based on the discrete stationary wavelet transform algorithms. The phase space of these coefficients was reconstructed by the theory of time delays. Based on the stability and the fractal of the chaotic attractor, the coefficients were predicted in their phase space. Finally the prediction of the coefficients were acquired by the inverse discrete stationary wavelet transform . The proposed algorithm was a better candidate for long range prediction. The simulation results prove the similarity of dynamic invariants between the origin and generated time series. And it shows that the proposed method can capture the dynamics of the nonlinear systems series effectively.
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