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A Zero-voltage-transition PFC Circuit Based on IC UC3855
Lisheng Shi,Limin Chen,Baojiang Chen 전력전자학회 1998 ICPE(ISPE)논문집 Vol.- No.-
This paper introduces the advantages of zero voltage transition(ZVT) boost converter for power factor correction and analyzes the control method of ZVT with IC UC3855. Practical design issues which include the components selection and design procedure are discussed. The experimental results are given.<br/>
AijunYang,Lisheng Wang,Weigao Ge 한국수학교육학회 2010 純粹 및 應用數學 Vol.17 No.1
This paper deals with the second-order differential equation (p(t)x'(t))'+g(t)f(t,x(t),x'(t))=0, a.e.in(0,∞)with the boundary conditions ∞x(0)= g(s)x(s)ds, lim p(t)x'(t) = 0,0 t→∞∞where g ∈ L1 [0,∞) with g(t) > 0 on [0,∞) and g(s)ds = 1, f isa g-0Carath´eodory function. By applying the coincidence degree theory, the existence of at least one solution is obtained.
An Integrity Protection Model based on Trusted Recovery Technology
Xiaojie Xu,lisheng Wang 보안공학연구지원센터 2016 International Journal of Security and Its Applicat Vol.10 No.4
This paper firstly through IBAC, integration of TE and RBAC, the use of compensatory well-formed transaction is proposed, the integrity of the structure can be recovered partial malicious transaction monitoring machine model. In the partial revocation of constitutive affairs, for the operation of data and tracking the affected, with two recovery policies. Conservative recovery policy to stop system the recovery of normal transaction execution, by analyzing log file dependencies list, according to operation performed after first order, cancel each affected operation. Another optimistic recovery policy can be in the normal operation of the system at the same time, the establishment of compensation operation corresponding to the operation to recover, and submitted to the monitoring machine scheduling integrity. This method can recover the system to a secure state in the face of failures and improves the availability of the system. It provides an important exploration for the design and implementation of the trusted recovery mechanisms of high-level secure operating system.
Computationally Efficient 2-D DOA Estimation Using Two Parallel Uniform Linear Arrays
Hailin Cao,Lisheng Yang,Xiaoheng Tan,Shizhong Yang 한국전자통신연구원 2009 ETRI Journal Vol.31 No.6
A new computationally efficient algorithm-based propagator method for two-dimensional (2-D) direction-of-arrival (DOA) estimation is proposed, which uses two parallel uniform linear arrays. The algorithm takes advantage of the special structure of the array which enables 2-D DOA estimation without pair matching. Simulation results show that the proposed algorithm achieves very accurate estimation at a computational cost 4 dB lower than that of standard methods.
Jiuxiu Ji,Lisheng Zhou,Yuanmei Guo,Lusheng Huang,Junwu Ma 아세아·태평양축산학회 2017 Animal Bioscience Vol.30 No.8
Objective: Growth-related traits are important economic traits in the swine industry. However, the genetic mechanism of growth-related traits is little known. The aim of this study was to screen the candidate genes and molecular markers associated with body dimension and body weight traits in pigs. Methods: A genome-wide association study (GWAS) on body dimension and body weight traits was performed in a White Duroc×Erhualian F2 intercross by the illumina PorcineSNP60K Beadchip. A mixed linear model was used to assess the association between single nucleotide polymorphisms (SNPs) and the phenotypes. Results: In total, 611 and 79 SNPs were identified significantly associated with body dimension traits and body weight respectively. All SNPs but 62 were located into 23 genomic regions (quantitative trait loci, QTLs) on 14 autosomal and X chromosomes in Sus scrofa Build 10.2 assembly. Out of the 23 QTLs with the suggestive significance level (5×10–4), three QTLs exceeded the genome-wide significance threshold (1.15×10–6). Except the one on Sus scrofa chromosome (SSC) 7 which was reported previously all the QTLs are novel. In addition, we identified 5 promising candidate genes, including cell division cycle 7 for abdominal circumference, pleiomorphic adenoma gene 1 and neuropeptides B/W receptor 1 for both body weight and cannon bone circumference on SSC4, phosphoenolpyruvate carboxykinase 1, and bone morphogenetic protein 7 for hip circumference on SSC17. Conclusion: The results have not only demonstrated a number of potential genes/loci associated with the growth-related traits in pigs, but also laid a foundation for studying the genes’ role and further identifying causative variants underlying these loci.