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Research on Task Scheduling Convergence Non-Dominated Sorting Method in Cloud Computing
Liang. Huang,Jun. Zheng,Guolv.Tan 보안공학연구지원센터 2015 International Journal of Grid and Distributed Comp Vol.8 No.1
Cloud computing task scheduling is a multi-objective decision on how to perform a variety of tasks simultaneously reasonable sort is essential. Therefore, this article constructs a population of convergence non-dominated sorting method. This method is based on non-dominated sorting method; the use of distributed estimation method is improved by four steps to complete the task order scheduling. The experimental results show that this method has good convergence and distribution.
Liang Chen,Hongyuan Fu,Tongyu Lu,Jianye Cai,Wei Liu,Jia Yao,Jinliang Liang,Hui Zhao,Jiebin Zhang,Jun Zheng,Yingcai Zhang,Yang Yang 대한암학회 2020 Cancer Research and Treatment Vol.52 No.2
Purpose Microtubule-associated protein 1 light chain 3B (LC3B) serves as a key component of autophagy, which is associated with the progression of carcinoma. Yet, it is still unclear whether LC3B is also an independent risk factor for intrahepatic cholangiocarcinoma (ICC). We aim to explore the predictive value of LC3B on prognosis of ICC, and to establish a novel and available nomogram to predict relapse-free survival (RFS) and overall survival (OS) for these patients after curative-intent hepatectomy. Materials and Methods From August 2004 to March 2017, 105 ICC patients were eligibly enrolled in the Third Affiliated Hospital of Sun Yat-sen University. Preoperative clinical information of enrolled patients was collected. Expression LC3B in the ICC specimen was detected by immunohistochemistry. Results The 5-year RFS and OS in this cohort were 15.7% and 29.6%, respectively. On multivariate Cox regression analysis, independent risk factors for 5-year OS were cancer antigen 125, microvascular invasion, LC3B expression and lymph node metastasis. Except for the above 4 factors, neutrophil/lymphocyte ratio and tumor differentiation were independent factors for 5-year RFS. The area under the curve of nomograms for OS and RFS were 0.820 and 0.747, respectively. Conclusion The nomograms based on LC3B can be considered as effective models to predict postoperative survival for ICC patients.
Interconnected hollow carbon nanospheres for stable lithium metal anodes
Zheng, Guangyuan,Lee, Seok Woo,Liang, Zheng,Lee, Hyun-Wook,Yan, Kai,Yao, Hongbin,Wang, Haotian,Li, Weiyang,Chu, Steven,Cui, Yi Nature Publishing Group, a division of Macmillan P 2014 Nature nanotechnology Vol.9 No.8
For future applications in portable electronics, electric vehicles and grid storage, batteries with higher energy storage density than existing lithium ion batteries need to be developed. Recent efforts in this direction have focused on high-capacity electrode materials such as lithium metal, silicon and tin as anodes, and sulphur and oxygen as cathodes. Lithium metal would be the optimal choice as an anode material, because it has the highest specific capacity (3,860 mAh g<SUP>–1</SUP>) and the lowest anode potential of all. However, the lithium anode forms dendritic and mossy metal deposits, leading to serious safety concerns and low Coulombic efficiency during charge/discharge cycles. Although advanced characterization techniques have helped shed light on the lithium growth process, effective strategies to improve lithium metal anode cycling remain elusive. Here, we show that coating the lithium metal anode with a monolayer of interconnected amorphous hollow carbon nanospheres helps isolate the lithium metal depositions and facilitates the formation of a stable solid electrolyte interphase. We show that lithium dendrites do not form up to a practical current density of 1 mA cm<SUP>–2</SUP>. The Coulombic efficiency improves to ∼99% for more than 150 cycles. This is significantly better than the bare unmodified samples, which usually show rapid Coulombic efficiency decay in fewer than 100 cycles. Our results indicate that nanoscale interfacial engineering could be a promising strategy to tackle the intrinsic problems of lithium metal anodes.
Zheng-Liang Zhang,유일선 한국무역연구원 2023 무역연구 Vol.19 No.4
Purpose – The purpose of this paper is to explore determinants that have a great impact on the wage gap of labors by education(wH /wL), and which factors lead to the extension of this and promote income inequality among workers in the Korean manufacturing industry since the 1990s. Design/Methodology/Approach – Based on human capital theory, labors are divided into highly-educated and low-educated labor. The effective labor function was established as a form of the CES function. The estimation equation consisting of the labor ratio by education(LH / LL), technical progress, and globalization can be derived as factors affecting the wage gap by education. Based on this estimation equation, an empirical analysis was implemented to analyze the wage gap factors of labors. A fully-modified ordinary least square was used as the method of estimation. Findings – In the Korean manufacturing industry, the absolute wage gap by education expanded while the relative wage gap narrowed due to an increase in LH / LL. It also expanded due to the effect of exogenous factors such as technical progress and globalization. Since the international financial crisis, the effect of LH / LL has decreased, and those of technical progress and globalization have increased, widening the relative wage gap which strengthens income inequality among workers. Research Implications – Currently, the wage gap by education has widened in the manufacturing industry, and income inequality has become a social issue. Under the de-manufacturing industrial structure, there are policy implications to promote technical progress that can create employment by expanding investment in the service industry and increasing the productivity of low-educated labor.
Experimental Study on Combined Column of Steel Pipe
Liang Zheng,Shengrun Dou,Wen Wang,Ying Gao,Hongwei Gai 한국강구조학회 2022 International Journal of Steel Structures Vol.22 No.1
To study the properties of various steel-pipe combined columns, ten steel pipe combined columns were designed, including fi ve axial compression specimens and fi ve eccentric compression specimens. The test mainly investigated the infl uence of the combination of a fl ange steel pipe and web steel pipe on the combined column, including the overall failure mode, local failure mode, load–displacement curve, bearing capacity, and stability of the fl ange steel pipe and web steel pipes. The test results showed that the overall and local failure modes of the axial compression specimens with diff erent steel pipe combinations were diff erent. The failure modes of the eccentric compression specimens with diff erent steel pipe combinations were almost identical. Except for the eccentric compression specimen PZH2, none of the other eccentric compression specimens exhibited local buckling. The combination of the fl ange steel pipes and web steel pipes near the fl ange steel pipes had an obviously eff ect on the bearing capacity, while the combination of steel pipes in the middle of the web had a lower eff ect on the bearing capacity. During the loading process, the fl ange and web steel pipe did not lose stability, and the weld between the steel pipes of the axial compression specimen and the eccentric compression specimen was not damaged. There was no obvious separation between the unwelded parts of the steel pipes.
Computation Controllable Mode Decision and Motion Estimation for Scalable Video Coding
Liang-Wei Zheng,Gwo-Long Li,Mei-Juan Chen,Chia-Hung Yeh,Kuang-Han Tai,Jian-Sheng Wu 한국전자통신연구원 2013 ETRI Journal Vol.35 No.3
This paper proposes an efficient computation-aware mode decision and search point (SP) allocation algorithm for spatial and quality scalabilities in Scalable Video Coding. In our proposal, a linear model is derived to allocate the computation for macroblocks in enhancement layers by using the rate distortion costs of the base layer. In addition, an adaptive SP decision algorithm is proposed to decide the number of SPs for motion estimation under the constraint of the allocated computation. Experiment results demonstrate that the proposed algorithm allocates the computation resource efficiently and outperforms other works in rate distortion performance under the same computational availability constraint.
Experimental Study on a New Connection Method of Latticed Shell Joint
Liang Zheng,Xinrong Qu,Hong Guo,Shaobo Geng 대한토목학회 2021 KSCE JOURNAL OF CIVIL ENGINEERING Vol.25 No.9
In this research, the axial and eccentric pressure tests and finite element analysis (FEA) of a latticed shell joint with different parameters were carried out. The experimental and FEA results showed that the annular plate yielded first, followed by steel tube 1, and then steel tube 2 under the axial pressure and eccentric pressure. The ultimate bearing capacities of connection method II under axial pressure and eccentric pressure were 15% and 11% higher than that of connection method I, respectively. The wall thickness of steel tube 2 was reduced by 2 mm, and the ultimate bearing capacities under axial pressure and eccentric pressure is reduced by 15% and 11%, respectively. The wall thickness of steel tube 1 was reduced by 2 mm, and the ultimate bearing capacities under axial pressure and eccentric pressure is reduced by 6% and 9%, respectively. With the decrease of the concrete thickness, the ultimate bearing capacity under axial pressure and eccentric pressure reduced by 18% and 17%, respectively. The ultimate bearing capacity analysis showed that the height of the concrete and the thickness of steel tube 2 had a greater effect on the ultimate bearing capacity than the thickness of steel tube 1.
The In-Plane Effective Length Factor of Web Members of the Steel Truss
Liang Zheng,Xinrong Qu,Ying Gao,Hong Guo 한국강구조학회 2021 International Journal of Steel Structures Vol.21 No.3
In the code for design of steel structures, the eff ective length factor of the support and other web members of the steel trusses composed of double angle steel were taken as 1.0 and 0.8, respectively. However, the eff ective length factor of the support and other web members did not take into account factors such as the stiff ness provided by non-adjacent members, the stiff ness of the joint itself, and the infl uence of load changes in the code for design of steel structures. To consider the above infl uencing factors, a fi nite element model, based on the steel truss atlas, was established in Abaqus, the elastic restraint stiff ness of the web member end was obtained through numerical analysis. The equation was established according to the restraints of the web member end, and the eff ective length factors of the web member were obtained by solving the equation with Matlab. The analysis found that the elastic restraint stiff ness of the web member provided by the bottom chord would not increase by increasing the tension of the bottom chord within the range of elastic deformation. The elastic restraint stiff ness of the web member provided by the top chord would not weak by increasing the pressure of the top chord within the range of elastic deformation. It was recommended that the eff ective length factors of the support and other web members of the steel truss should be 0.8 and 0.7, respectively.