http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Development of Corpus Resources for Empirical Translation Studies
JI, Meng 이화여자대학교 통역번역연구소 2014 T&I review Vol.4 No.-
From its inception in the 1990s, corpus-based translation studies or CBTS represents a growing area of research which is largely based on the development of digital research resources and technologies. This paper offers an overview of the development of the field in the last twenty years, highlighting the importance of developing pragmatic and versatile analytical techniques in order to optimise use of corpus resources and tools based on current natural language processing technologies. This includes the development of small-scale yet effective language corpora and the devise of annotation schemes and strategies to serve specific research purposes that are termed as problem-oriented corpus annotation here.
A Gripper Capable of Screw Fastening and Gripping With a Single Driving Source
Ji-Hun Meng,Inhwan Yoon,Sung-Jae Park,Jae-Bok Song 제어·로봇·시스템학회 2024 International Journal of Control, Automation, and Vol.22 No.9
As the range of applications of robots expanded, they began to be used for complex assemblies such as screw fastening and pin assembly. Most specialized screw fastening tools are sensitive to external influences and require additional instruments to prevent screw dislodgement when working in unstructured environments. To address this challenge, we propose a screw fastening gripper (SFG) capable of screw fastening and small pin gripping with a single power source. The proposed SFG is divided into a fastening part for screw fastening and a gripper for grasping, with power distributed via a magnetic gear. It is designed to temporarily separate the gripper and fastener using the magnetic gear’s features, so it can be used to fasten screws of various lengths if necessary. Through gripping force measurements and screw fastening experiments, the proposed SFG showed sufficient performance in grasping and screw fastening.
Role Assignment in Multi-Agent Coordination
Meng Ji,Shun-ichi Azuma,Magnus Egerstedt 한국과학기술원 인간친화 복지 로봇 시스템 연구센터 2006 International Journal of Assistive Robotics and Me Vol.7 No.1
In this paper we study the problem of parameterized assignment. This problem arises when a team of mobile robots has to decide what role to take on in a given planar formation by controlling the rotation and translation of the formation. A suite of suboptimal, but computationally tractable (polynomial time) algorithms are presented, based on a solution to the problem of finding the optimal translation and rotation given a fixed assignment. Numerical examples verify the viability of the proposed, suboptimal solutions.
Fault Tolerant H∞ Control for a Class of Polynomial Non-linear Discrete-time Systems
Xian-Ji Meng,Guang-Hong Yang 제어·로봇·시스템학회 2012 International Journal of Control, Automation, and Vol.10 No.4
This paper studies the fault tolerant control (FTC) problem for a class of polynomial nonlinear discrete-time systems with guaranteed H∞ performance in the presence of actuator faults. The con-cerned fault is considered as a multi-model of the typical aberration in actuators’ effectiveness. A quadratic-like polynomial Lyapunov function is presented for the H∞ specification. The main contribution of this paper is that the effect of the nonlinear terms appear in FTC analysis is described as an index in order to transform the controller design into a semi-definite programming (SDP). A numerical example is given to verify the applicability of this new approach for the nonlinear FTC synthesis.
Meng, Xianhui,Lee, Tae-Young,Chen, Huiyu,Shin, Dong-Wook,Kwon, Kee-Won,Kwon, Sang Jik,Yoo, Ji-Beom American Scientific Publishers 2010 Journal of Nanoscience and Nanotechnology Vol.10 No.7
<P>Large area of self-organized, free standing anodic titanium oxide (ATO) nanotube membranes with clean surfaces were facilely prepared to desired lengths via electrochemical anodization of highly pure Ti sheets in an ethylene glycol electrolyte, with a small amount of NH4F and H2O at 50 V, followed by self-detachment of the ATO membrane from the Ti substrate using recycling processes. In the first anodization step, the nanowire oxide layer existed over the well-arranged ATO nanotube. After sufficiently rinsing with water, the whole ATO layer was removed from the Ti sheet by high pressure N2 gas, and a well-patterned dimple layer with a thickness of about 30 nm existed on the Ti substrate. By using these naturally formed nano-scale pits as templates, in the second and third anodization process, highly ordered, vertically aligned, and free standing ATO membranes with the anodic aluminum oxide (AAO)-like clean surface were obtained. The inter-pore distance and diameter was 154 +/- 2 nm and 91+/- 2 nm, the tube arrays lengths for 25 and 46 hours were 44 and 70 microm, respectively. The present study demonstrates a simple approach to producing high quality, length controllable, large area TiO2 membrane.</P>
Optimization of Pasteurization Process of Beer for Avoiding Off-Flavor
Ji Hye Kim,Jung Hwa Yang,Do Yeob Kim,Dong youl Kim,Sang Bong Lee,Meng jingjing,Seung Won Jung,Seung Ju Lee 한국산업식품공학회 2016 학술대회 및 심포지엄 Vol.2016 No.10
The pasteurization is employed for extending shelf-life and keeping the quality of products constant. However the pasteurization undesirably accelerates the oxidation of beer which renders volatile compounds concerning off-flavor. The pasteurization conditions was optimized to avoid off-flavor of beer during pasteurization. Under the isothermal condition, thermal destruction kinetics such as D and Z value of Lactobacillus brevis which is reported the most common beer spoilage, was determined. The binomial data (detected or non-detected of off-flavor) was treated with logistic regression to estimate off-flavor development (OFD) times. The temperature dependence of OFD times was established in terms of Arrhenius relationships. Optimized pasteurization temperature and time were found at which OFD times was not detected. The constraint for optimization was that the pasteurization degree should be larger than 5 decimal reduction time. The optimization was conducted through mathematical simulation using kinetics and temperature-dependent models for microbial death and OFD times. The optimized results were validated by the corresponding experimentations, which met the requirements that the concentration of Lactobacillus brevis was 5-Log reduction and the OFD times not detected.
The Formation Process and Current Issues of Regional Centers for Children
Ji-young Won,Bum-ki Park,Hee-kyung Kim,Soon-deok Lee,Mi-hye Lee,Xiangqi Meng 한국사회적질학회 2019 사회적질연구 Vol.3 No.2
Since the amendment of Child Welfare Law in 2003, the regional centers for children have been a part of the child welfare system, providing child-care services for families in poverty. In Korea, the regional centers for children were established during the poverty movement in the 1970s and have been developed as childcare providers for poor children since the financial crisis. However, the identity of regional centers for children is being threatened as the universal perspective on caring and the public values of caring services are being strengthened. There has raised a controversy around the role of regional centers for children that provide child-care services for vulnerable families. In addition, the survival of the regional centers for children is being threatened due to some issues regarding the content of their program as it is similar to those of other child-care agencies, the lack of cooperation among the ministries of government addressing public needs for child-care services, the poor working conditions of center employees, and the poor quality of services. The purpose of this study is to examine the formation process of the regional centers for children. After that, we discuss the current issues of the regional centers for children and seek alternatives that can settle the problems and respond properly to social changes.
Meng Fu,Fa-zeng Lian,Ji-jie Wang,Wen-li Pei,Yu-lan Chen,Hong-cai Yang 한국자기학회 2004 Journal of Magnetics Vol.9 No.4
The HDDR (Hydrogenation-Disproportionation-Desorption-Recombination) process is a special method to produce anisotropic NdFeB powders for bonded magnet. The effect of the modified HDDR process on magnetic properties of Nd₂Fe₁₄B-based magnet with several composition Nd_(11.2)Fe_(66.5-x)Co_(15.4)B_(6.8)Zr_(0.1)Ga_x (x = 0~1.0) and that of microelement Ga, disproportional temperature and annealing temperature on jHc, grain size were investigated in order to produce anisotropic powder with high magnetic properties. It was found that modified HDDR process is very effective to enhance magnetic properties and to fine grain size. The addition of Ga could change disproportionation character remarkably of the alloy and could improve magnetic properties of magnet powder. Increasing annealing temperature induces significant grain growth. And grain size produced by modified HDDR process is significantly smaller than those produced by conventional HDDR process.