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Method of a Payment using Open API based on Web Services
SunHwan Lim,JaeYong Lee,ByungChul Kim 대한전자공학회 2007 ITC-CSCC :International Technical Conference on Ci Vol.2007 No.7
In this paper we designed a payment web services that enables IT developers to create charge-related applications using telecommunications network elements. This service is based on Parlay X web services. In the design process we describe the functional architecture of payment web services.
Sunhwan Hwang,송인규,Joongwon Lee,Ung Gi Hong,Jeong Gil Seo,정지철,고동준,Hyojun Lim,Changdae Byun 한국공업화학회 2011 Journal of Industrial and Engineering Chemistry Vol.17 No.1
Nickel–alumina xerogel catalysts (XNiAl) with different nickel contents (X, wt%) were prepared by a single-step sol–gel method for use in the methane production from carbon monoxide and hydrogen. The effect of nickel content on the catalytic performance of XNiAl catalysts was investigated. Conversion of CO and yield for CH4 over XNiAl catalysts drastically increased with increasing nickel content from 20 to 40 wt%, but they were almost constant at nickel content above 40 wt%. This indicates that XNiAl catalysts with nickel content above 40 wt% served as efficient catalysts in the methane production from carbon monoxide and hydrogen. The enhanced catalytic performance of nickel–alumina xerogel catalysts with nickel content above 40 wt% was attributed to the abundant active surface nickel species caused by welldeveloped framework mesopores and large pore size of the catalysts. When considering the amount of nickel used for the preparation of catalyst, it is reasonable to conclude that the optimal nickel content of nickel–alumina xerogel catalyst for methanation reaction was 40 wt%.
Sunhwan Hwang,Joongwon Lee,Ung Gi Hong,정지철,고동준,Hyojun Lim,Changdae Byun,송인규 한국공업화학회 2012 Journal of Industrial and Engineering Chemistry Vol.18 No.1
Mesoporous nickel(30 wt%)-M(10 wt%)-alumina xerogel (30Ni10MAX) catalysts with different second metal (M = Fe, Ni, Co, Ce, and La) were prepared by a single-step sol–gel method for use in the methane production from carbon monoxide and hydrogen. In the methanation reaction, yield for CH4 decreased in the order of 30Ni10FeAX > 30Ni10NiAX > 30Ni10CoAX > 30Ni10CeAX > 30Ni10LaAX. Experimental results revealed that CO dissociation energy of the catalyst and H2 adsorption ability of the catalyst played a key role in determining the catalytic performance of 30Ni10MAX catalyst in the methanation reaction. Optimal CO dissociation energy of the catalyst and large H2 adsorption ability of the catalyst were favorable for methane production. Among the catalysts tested, 30Ni10FeAX catalyst with the most optimal CO dissociation energy and the largest H2 adsorption ability exhibited the best catalytic performance in terms of conversion of CO and yield for CH4 in the methanation reaction. The enhanced catalytic performance of 30Ni10FeAX was also due to a formation of nickel–iron alloy and a facile reduction.
황선환 ( Sunhwan Hwang ),조희태 ( Heetae Cho ) 한국스포츠정책과학원(구 한국스포츠개발원) 2016 체육과학연구 Vol.27 No.1
This study identified the trends in leisure and recreation research in Korea for the past 10 years. We classified previous research based on ten leisure and recreation research areas and compared the research trends of five journals: Korean Journal of Leisure, Recreation & Park, Korean Journal of Physical Education, Journal of Sport and Leisure Studies, Journal of Leisure Studies, and Journal of the Korea Contents Association. The results indicated that most research published over the last decade were included in the area of leisure social psychology, and the area of leisure social psychology showed the highest ratio in five journals compared with other research areas. To resolve the problematic results, this research suggests that future research needs to have diversity to extend the leisure and recreation research realm and to improve the quality of leisure and recreation research in Korea. We expect that this study would be used as a foundation for future leisure and recreation research. 본 연구는 국내의 여가레크리에이션 관련 학술지(한국여가레크리에이션학회지, 한국체육학회지, 한국사회체육학회지, 여가학연구, 한국콘텐츠학회 논문지)에서 최근 10년 간 발표된 여가레크리에이션 연구들의 주제를 여가학 연구영역 별로 분류하여 연구동향을 확인하였으며 각 학술지간의 연구동향을 비교하였다. 연구 결과에 따르면 최근 10년 동안 여가사회심리 영역에 속하는 연구가 가장 많이 수행되었으며, 학회지별 연구 동 향을 비교한 결과 모든 학회지에서 여가사회심리 연구의 비율이 압도적으로 우위를 보였다. 현재 한국여가레 크리에이션 연구는 편향적인 연구 동향을 보였다. 이러한 문제점을 극복하고 여가레크리에이션학 연구의 확장을 위해서 연구의 다양성 확보를 위한 노력이 필요하다. 본 연구는 앞으로 수행될 여가레크리에이션 연구의 발전을 위한 기초 자료로 사용 될 것을 기대한다.
Method of Fare Payment based on Open API using Mobile Phone
임선환(Sunhwan Lim),이재용(Jaeyong Lee),김병철(Byungchul Kim) 대한전자공학회 2008 電子工學會論文誌-TC (Telecommunications) Vol.45 No.8
본 논문에서는 요금 지불 서비스를 위한 기능 구조를 설계하였다. 이는 IT 개발자들이 통신망 자원을 이용하여 과금 관련 응용을 손쉽게 만들 수 있도록 하였다. 운용자들이 통합 빌링을 제공할 수 있도록 하는 비즈니스 모델을 지원하기 위해서 지불 인터페이스와 계좌 관리 인터페이스는 필수적이며, 나아가 시장성장에 중요한 역할을 한다. 이 모델을 이용하여 지불 서비스와 계좌 관리 서비스로 구성되는 요금 지불 서비스를 생성하였다. 각각의 서비스는 Parlay X 웹서비스 구조를 기반으로 하였다. 지불 모델링과 계좌 관리 모델링 과정에서, Parlay X 지불 웹서비스에서 Spit Charging 관련 신규 오퍼레이션을 제안하였고, Parlay X 계좌 관리 웹서비스에서 Notification 관련 신규 오퍼레이션을 제안하였다. In this paper, functional architecture for fare payment is designed that enables IT developers to create charge-related applications using telecommunications network elements. To support a business model that enables operators to offer integrated billing, a payment and an account management API is crucial. Using this model, a fare payment service consisting of a payment service and an account management service was created. Each service is based on the architecture of Parlay X web services<SUP>[5]</SUP>. For the modeling of payment and of account management, the new operation of “split charging” is required in Parlay X payment web services, as is the new operation “notification”.