탄화규소/알루미늄 금속계 복합재료의 형상방전가공

왕덕현,이윤경,우정윤,허보영 한국공작기계학회 1998 한국생산제조학회지 Vol.7 No.1

Conductive metal matrix composite(MMC) material of 30% silicon carbide particulate based on aluminum matrix was machined by die sinking electrical discharge machining(EDM) process according to different current and duty factor for reverse polarity of electrode. Material removal rate(MRR) was examined by process under various operating conditions. The surface morphology was evaluated by surface roughness parameter and scanning electron microscopy(SEM) research. The MRR was suddenly increased over 11 ampere of current, and it was slightly changed over 0.3 of duty factor. The maximum surface roughness of EDMed surface was affected by the duty factor. The SEM photographs of EDMed surface showed wide recast distribution region of melting materials as increased of current and duty factor.

조기 후두암의 Docetaxel-Cisplatin 유도 화학요법에 대한 임상연구

정주섭,권보란,최영진,왕수건,이병주,조군제 부산대학교 병원 암연구소 2009 부산대병원학술지 Vol.- No.25

LiFePO₄ quantum-dots composite synthesized by a general microreactor strategy for ultra-high-rate lithium ion batteries

Wang, Bo,Xie, Ying,Liu, Tong,Luo, Hao,Wang, Bin,Wang, Chunhui,Wang, Lei,Wang, Dianlong,Dou, Shixue,Zhou, Yu Elsevier 2017 Nano energy Vol.42 No.-

<P><B>Abstract</B></P> <P>Due to the relatively slow, diffusion-controlled faradaic reaction mechanisms of conventional LiFePO<SUB>4</SUB> (LFP) materials, which is hard to deliver satisfied capacity for high rate applications. In this work, ultrafine LFP quantum dots (LFP-QDs) co-modified by two types of carbonaceous materials - amorphous carbon and graphitized conductive carbon (graphene) have been successfully synthesized through a novel microreactor strategy. Because of the very limited area constructed by the dual-carbon microreactor for the growth of LFP crystal, it's demension was furthest suppressed to a very small level (~ 6.5nm). Such a designed nano-composite possesses a large specific surface area for charge adsorption and abundant active sites for faradaic reactions, as well as ideal kinetic features for both electron and ion transport, and thus exhibits ultra-fast, surface-reaction-controlled lithium storage behavior, mimicking the pseudocapacitive mechanisms for supercapacitor materials, in terms of extraordinary rate capability (78mAhg<SUP>−1</SUP> at 200C) and remarkable cycling stability (~ 99% over 1000 cycles at 20C). On the other side, due to the quasi-2D structure of the synthesized LFP-QDs composite, which can be used as the basic unit to further fabricate free-standing film, aerogel and fiber electrode without the addition of binder and conductive agent for different practical applications. In addition, to deeper understand its electrochemical behavior, a combined experimental and density functional theoretical (DFT) calculation study is also introduced.</P> <P><B>Highlights</B></P> <P> <UL> <LI> A general microreactor strategy has been developed for structure-optimized Li-contained electrode materials. </LI> <LI> Ultrafine LiFePO<SUB>4</SUB> quantum dots are first reported through the designed microreactor strategy. </LI> <LI> The synthesized G/LFP-QDs@C exhibits ultra-fast, surface-reaction-controlled Li storage behavior. </LI> <LI> A combined experimental and DFT calculation study is introduced to reveal the energy storage mechanism of G/LFP-QDs@C. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>Ultrafine LiFePO<SUB>4</SUB> quantum dots (~ 6.5nm) co-modified by two types of carbonaceous materials - amorphous carbon and graphitized conductive carbon (graphene) have been successfully synthesized through a novel microreactor strategy, which exhibit ultra-fast, surface-reaction-controlled energy storage behavior, mimicking the pseudocapacitive mechanisms for supercapacitor materials, in terms of excellent rate capability and outstanding cycling stability.</P> <P>[DISPLAY OMISSION]</P>

SINGLE MACHINE GROUP SCHEDULING UNDER DECREASING LINEAR DETERIORATION

Wang, Ji-Bo,Guo, Ai-Xia,Shan, Feng,Jiang, Bo,Wang, Li-Yan 한국전산응용수학회 2007 Journal of applied mathematics & informatics Vol.24 No.1

This paper considers single machine scheduling problems with group technology (GT) and deteriorating jobs. A sequence independent setup is required to process a job from a different group and jobs in each group are processed together. We consider the case of jobs whose processing times are a decreasing function of their starting time. The objectives of scheduling problems are to minimize the makespan and the total completion time, respectively. We also provide polynomial time algorithms to solve these problems.

Draft Genome Assembly and Annotation for Cutaneotrichosporon dermatis NICC30027, an Oleaginous Yeast Capable of Simultaneous Glucose and Xylose Assimilation

Wang Laiyou,Guo Shuxian,Zeng Bo,Wang Shanshan,Chen Yan,Cheng Shuang,Liu Bingbing,Wang Chunyan,Wang Yu,Meng Qingshan 한국균학회 2022 Mycobiology Vol.50 No.1

The identification of oleaginous yeast species capable of simultaneously utilizing xylose and glucose as substrates to generate value-added biological products is an area of key eco- nomic interest. We have previously demonstrated that the Cutaneotrichosporon dermatis NICC30027 yeast strain is capable of simultaneously assimilating both xylose and glucose, resulting in considerable lipid accumulation. However, as no high-quality genome sequenc- ing data or associated annotations for this strain are available at present, it remains chal- lenging to study the metabolic mechanisms underlying this phenotype. Herein, we report a 39,305,439 bp draft genome assembly for C. dermatis NICC30027 comprised of 37 scaffolds, with 60.15% GC content. Within this genome, we identified 524 tRNAs, 142 sRNAs, 53 miRNAs, 28 snRNAs, and eight rRNA clusters. Moreover, repeat sequences totaling 1,032,129 bp in length were identified (2.63% of the genome), as were 14,238 unigenes that were 1,789.35 bp in length on average (64.82% of the genome). The NCBI non-redundant protein sequences (NR) database was employed to successfully annotate 11,795 of these unigenes, while 3,621 and 11,902 were annotated with the Swiss-Prot and TrEMBL databases, respectively. Unigenes were additionally subjected to pathway enrichment analyses using the Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), Cluster of Orthologous Groups of proteins (COG), Clusters of orthologous groups for eukaryotic com- plete genomes (KOG), and Non-supervised Orthologous Groups (eggNOG) databases. Together, these results provide a foundation for future studies aimed at clarifying the mech- anistic basis for the ability of C. dermatis NICC30027 to simultaneously utilize glucose and xylose to synthesize lipids.

Comparision of Urban Development Model Between China and Bangladesh

( Wang Bo ),( Lee Jong Youl ),( Hasan Md Golam Mehedi ) 인천대학교 사회과학연구원 2015 사회과학연구 Vol.6 No.-

Urbanization is typically seen to accompany and lead economic growth in the world. Like other developing countries, urbanization in China increased in speed following the initiation of the reform and the opening policy. On the other hand, an increasing share of population of migrates to urban centers in search for employment opportunities in Bangladesh. However, this paper seeks a general understanding of urban development using different variables to compare the urban development model between China and Bangladesh. This study tries to look for the development model that has shown the reality of urban development in these two countries. This study uses data from the years 1990-1991, 2000-2001, and 2010- 2011 to look at the urban development model between China and Bangladesh. This paper based on the dissertation of Wang Bo and the title is Three Faces of Urban Development in China: State, Market, and Reform. In addition, secondary data were collected from various government agencies and other reliable sources, including China Statistical Yearbook and the Bangladesh Bureau of Statistics (BBS). This paper concludes by providing some strategies that might be helpful to policy makers in formulating development policies for urban development.

Sensorless Robust Predictive Current Control for Induction Motor Using a Speed Adaptive Full-Order Observer

Bo Wang,Hongbo Wang,Yong Yu,Xin Lv,Gaolin Wang,Dianguo Xu 전력전자학회 2015 ICPE(ISPE)논문집 Vol.2015 No.6

Nowadays, speed sensorless induction motor drives have been widely used in industrial applications. To improve the dynamic performance of the current loop, a sensorless robust predictive current controller combined with a speed adaptive full-order observer is presented in the paper. Based on the mathematical model of induction motor in discrete domain, the proposed controller is designed to replace the traditional PI controller. Compared with the PI control and traditional deadbeat predictive current control, the proposed method can significantly enhance the robustness of current feedback control. Meanwhile, a speed adaptive full-order observer is designed to obtain the motor rotor speed for the control scheme. The effectiveness of the proposed algorithm has been verified experimentally via a 3.7 kW electric drive system.

东南亚华商对中国大陆投资特点分析

王望波(Wang-Bo, Wang) 전남대학교 글로벌디아스포라연구소 2007 디아스포라 연구 Vol.1 No.2

Investigation of the Structural Behaviour of RC Beam-Column Sub-frame Subjected to Progressive Collapse

Feiliang Wang,Sandeep Shah,Xiaoping Wang,Xing-Er Wang,Wang-Xi Zhang,Bo Pang,Jian Yang 대한토목학회 2022 KSCE JOURNAL OF CIVIL ENGINEERING Vol.26 No.4

The aim of this study is to investigate the effects of varying design variables on the structural behaviour of reinforced concrete (RC) sub-frames under progressive collapse. A finite element modelling approach is presented and validated against the experimental results concerning a 2D frame (3 columns and 2 beams) and a 3D frame (4 columns and 3 beams). The performance of the RC sub-frame is discussed by choosing the scenarios of the exterior, interior, and multiple column loss, respectively, and by increasing the number of stories and bays. Further studies are conducted based on the numerical method to reveal the effect of beam longitudinal reinforcement ratio (BLRR), beam section depth (BSD), and concrete compression strength (CCS). The results show that both BLRR, CCS and BSD have a significant influence on the compressive arch action (CAA) capacity of the structure under progressive collapse, and the load-carrying capacity of the RC sub-frame increases with an increasing number of stories.

Single machine group scheduling under decreasing lineardeterioration

Ji-Bo Wang,Ai-Xia Guo,Feng Shan,Bo Jiang,Li-Yan Wang 한국전산응용수학회 2007 Journal of applied mathematics & informatics Vol.24 No.1