http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Generating a Ball Sport Scene in a Virtual Environment
( Jongin Choi ),( Sookyun Kim ),( Sunjeong Kim ),( Shinjin Kang ) 한국인터넷정보학회 2019 KSII Transactions on Internet and Information Syst Vol.13 No.11
In sports video games, especially ball games, motion capture techniques are used to reproduce the ball-driven performances. The amount of motion data needed to create different situations in which athletes exchange balls is bound to increase exponentially with resolution. This paper proposes how avatars in virtual worlds can not only imitate professional athletes in ball games, but also create and edit their actions effectively. First, various ball-handling movements are recorded using motion sensors. We do not really have to control an actual ball; imitating the motions is enough. Next, motion is created by specifying what to pass the ball through, and then making motion to handle the ball in front of the motion sensor. The ball's occupant then passes the ball to the user-specified target through a motion that imitates the user’s, and the process is repeated. The method proposed can be used as a convenient user interface for motion based games for players who handle balls.
Investigation of a Bluetooth Module Integrated with an Embedded Antenna
Jongin Ryu,Dongsu Kim,Junchul Kim 대한전자공학회 2007 ITC-CSCC :International Technical Conference on Ci Vol.2007 No.7
This paper presents a Bluetooth module integrated with an embedded antenna based on low temperature co-fired ceramic (LTCC) technology. By removing chip components such as inductors and capacitors for a matching circuit, a compact module can be realized with high performance. The overall size of the antenna itself is less than 3.4 ㎜ × 6.3 ㎜ with a substrate thickness of 0.8 ㎜. The propoesed antenna provides that the resonant frequency is 2. 48 ㎓ with a bandwidth of 53 ㎒ for VSWR < 2. Furthermore, the effect of PCB size and feeding line of the antenna are described as well.
A Novel Free-flow ETC System for multi-line using RF-DSRC and RFID Communications
Jongin Jung,JongKyun Hong,Jeongyoul Cho,Sangsun Lee 한국자동차공학회 2006 한국자동차공학회 Symposium Vol.- No.-
This paper suggests an ETCS (Electronic Toll Collection System) model with support for multiple lanes. The wireless communication system of the multi-lane-supported ETCS is based on RF-DSRC (Radio Frequency ? Dedicated Short Range Communication). The problems of RF-DSRC for use in ETCS are discussed, and a solution is suggested to overcome the problems. Moreover, a novel system model is designed, providing a solution for multiple lane support. This novel system uses RFID (Radio Frequency Identification) technology to sense the lane of a vehicle entering a tollgate. The RFID reader is connected to the CCU (Central Control Unit) to collect and supply information about the vehicles passing through. Also, the data process flow and the data format for the multi-lane-supported ETCS model are defined in order to carry out the multi-lane service.
Jongin Shim,Kyungyul Yoo 한국물리학회 2007 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.50 No.2
A measurement method for the linewidth enhancement factor of a semiconductor Fabry-Perot (FP) laser operating above threshold is presented. This measurement method is designed to have a simple structure and an extend operational range. The active carrier density of the FP laser is modulated by optical injection locking, which makes it possible to measure the variation of optical spectrum from the injected optical frequency.
Occupational Diseases Among Office Workers and Prevention Strategies
Jongin Lee,Jung-Wan Koo 대한인간공학회 2015 大韓人間工學會誌 Vol.34 No.2
Objective:In this review we discuss the health effects among office workers. Background: Even if office workers are not exposed hazardous or harmful environment frequently, some problems could be happened to the office workers. Although serious occupational diseases rarely occur to the office workers, it is important to consider occupational risk factors for the office worker because the portion of the office workers is relatively high in all industries. Method: We divided possible health effects for the office workers into three categories; musculoskeletal disorders, indoor environment, and cerebro-cardiovascular diseases. We reviewed related articles, textbooks, and statistical materials non-systematically and described risk factors, related illnesses, and prevention strategies on each category. Results: Office workers have various musculoskeletal disorders to be intervened. By medical treatment, improving working environment, and ergonomic intervention, office workers can be prevented from musculoskeletal injuries. Poor indoor environment can cause many building-related illnesses or sick building syndrome. Although the etiology of some problems by poor indoor environment is not clear, it helps to maintain adequate humidity, temperature, and clarity of indoor air. Cerebrocardiovascular diseases are a rising issue because office workers in Korea tend to work for a lot of time. To prevent the diseases, it is needed to work for adequate time, lengthen activity level, and manage other medical risk factors for the diseases. Conclusion: There is no distinct occupational disease for office workers. However, there are some aspects to consider the health effects of office workers and it is important to prevent the possible health problems. Application: A strategy against occupational diseases among office workers can be established by reviewing this article.
Jongin Yang,Hong Hyun Son,Yong Jae Lee,Doyoung Shin,Taejin Kim,Seong Soo Choi Korean Nuclear Society 2023 Nuclear Engineering and Technology Vol.55 No.6
The load-following operation of small modular reactors (SMRs) requires accurate prediction of transient behaviors that can occur in the balance of plants (BOP) and the nuclear steam supply system (NSSS). However, 1-D thermal-hydraulics analysis codes developed for safety and performance analysis have conventionally excluded the BOP from the simulation by assuming ideal boundary conditions for the main steam and feed water (MS/FW) systems, i.e., an open loop. In this study, we introduced a lumped model of BOP fluid system and coupled it with NSSS without any ideal boundary conditions, i.e., in a closed loop. Various methods for coupling boundary conditions at MS/FW were tested to validate their combination in terms of minimizing numerical instability, which mainly arises from the coupled boundaries. The method exhibiting the best performance was selected and applied to a transient simulation of an integrated NSSS and BOP system of a SMART. For a transient event with core power change of 100-20-100%, the simulation exhibited numerical stability throughout the system without any significant perturbation of thermal-hydraulic parameters. Thus, the introduced boundary-condition coupling method and BOP fluid system model can expectedly be employed for the transient simulation and performance analysis of SMRs requiring daily load-following operations.