• 농업생명과학연구
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• 제46권5호
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• pp.65-72
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• 2012

Salmonellosis is a widespread bacterial zoonosis that commonly causes enterocolitis and foodborne poisoning leading to an extensive economic loss in domestic animal industry. Considerably, the emergence of multidrug resistant strains of Salmonella spp. induces further severe problems affecting public health. The present report was designated to investigate the antibacterial efficacies of three common disinfectants including an oxidizing compound disinfectant (OXC), a triple salt (TS) and a quaternary ammonium compound (QAC) against Salmonella typhimurium subjected to the preliminary changes of drug temperature. All solutions of three disinfectants were pre-incubated at different temperature (22, 37 and $63^{\circ}C$) for 1 h prior to exposure to bacteria. The disinfectants and bacteria were diluted with distilled water (DW), hard water (HW) or organic matter suspension (OMS) according to treatment condition. Under the DW condition, the disinfectant efficacy of the QAC at $63^{\circ}C$ was higher than that of $22^{\circ}C$. Furthermore, under HW diluent the disinfectant efficacy of the TS pre-warmed at both of 37 and $63^{\circ}C$ were increased compared to that of $22^{\circ}C$. Considerably, the efficacy of pre-warmed QAC at both of 37 and $63^{\circ}C$ under the OMS diluent were higher than that of $22^{\circ}C$. Conclusively, prewarming at higher temperatures have positive effects on the stability of the antibacterial efficacies of TS and QAC.

• 한국초전도ㆍ저온공학회논문지
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• 제20권4호
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• pp.11-15
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• 2018

Torque tubes in High Temperature Superconducting (HTS) motor transfer torque from superconducting field winding rotor to the room temperature shaft. It should have minimum heat conduction property for minimizing the load on cryo-refrigerator. Generally, these torque tubes are made with stainless steel material because of high strength, very low outgassing and low thermal contraction properties at cryogenic temperatures and vacuum conditions. With recent developments in composite materials, these torque tubes could be made of composites such as Kevlar and S-Glass, which have the required properties like high strength and low thermal conductivity at cryogenic temperatures, but with a reduced weight. Development and testing of torque tubes made of these composites for HTS motor are taken up at Bharat Heavy Electricals Limited (BHEL), Hyderabad in collaboration with Central Institute of Plastics and Engineering Technology (CIPET), Chennai and Indian Institute of Technology (IIT), Kharagpur. As these materials are subjected to vacuum, it is important to measure their outgassing rates under vacuum conditions before manufacturing prototype torque tubes. The present study focusses on the outgassing characteristics of Kevlar and S-Glass, using an Outgassing Measurement System (OMS), developed at IIT Kharagpur. The OMS facility works under vacuum environment, in which the test samples are exposed to vacuum conditions over a sufficient period of time. The outgassing measurements for the composite samples were obtained using pressure-rise technique. These studies are useful to quantify the outgassing rate of composite materials under vacuum conditions and to suggest them for manufacturing composite torque tubes used in HTS motors.

• 한국산업융합학회 논문집
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• 제26권5호
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• pp.885-894
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• 2023

Setting RAM target value for a defense system plays a crucial role in the development and design phases and the production phase as well. It is apparent that the achieved RAM target value can help maximizing the combat capability of a defense system and improving its performance throughout the system's life cycle from acquisition phase to disposal. Usually a defense system operates according to its OMS/MP (Operational Mode Summary / Mission Profile) and it consists of several subsystems which are supposed to be operated at each utilization rate under its operating conditions and the mission profiles assigned. In this study, a method of setting RAM target value is proposed for a defense system that are composed of several independent subsystems considering their utilization rates and the mission profiles assigned. And the case study of applying the proposed method of setting RAM target value to system A is dealt with.

• 대한치과의사협회지
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• 제50권11호
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• pp.677-681
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• 2012

Orthognathic surgery(2-jaw or 1-jaw surgery) is very famous one of cosmetic techniques. However, primary purpose of orthognathic surgery is to improve the occlusion of jaw and secondary purpose is to improve the esthetic result. Unfortunately, many patients don't only confuse often primary and secondary purpose of orthognathic surgery but they think the esthetic result is more important than the occlusion. Therefore, oral and maxillofacial surgeon has to fully understand cosmetic needs of patient and reflect that in the treatment plan. Patients with prominent mandibular angle want to have the narrower face of so called 'V-line' shape. Various techniques like the angle shaving, ostectomy of the lateral cortex around the mandibular angle and masseter musclectomy can be used for improving the mandibular angle hypertrophy. These techniques also can be applied in orthognathic surgery at the same time. We operated patients of orthognathic surgery, especially, with wide lower face and post-operative results were satisfactory in all cases. So, we propose mandibular angle management for improving the esthetic result of orthognathic surgery.

• 한국정밀공학회지
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• 제17권10호
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• pp.41-48
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• 2000

Manufacturing devices must be integrated for constructing CIM environment, but integration of heterogeneous system meets several economical and technological difficulties. In this case, MMS(Manufacturing Message Specification) can be an effective method, but it has problems which MMS products are generally very expensive and majority of the existing manufacturing devices do not support MMS. This paper describes the development of a gateway for Non-MMS-Compatible CNC machine tools to serve MMS and the implementation of OSI(Open System Interconnection) upper layer on TCP/IP. The developed system is applied to construct cell controller with heterogeneous devices under CIM environment and to evaluate interoperability and portability.

• 전기학회논문지P
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• 제59권1호
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• pp.53-57
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• 2010

Low-density parity-check (LDPC) codes with belief-propagation (BP) algorithm achieve a remarkable performance close to the Shannon limit at reasonable decoding complexity. Conventionally, each iteration in decoding process contains two steps, the horizontal step and the vertical step. In this paper, an efficient implementation of the adaptive offset min-sum (AOMS) algorithm for decoding LDPC codes using the single-step method is proposed. Furthermore, the performances of the AOMS algorithm compared with belief-propagation (BP) algorithm are investigated. The algorithms using the single-step method reduce the implementation complexity, speed up the decoding process and have better efficiency in terms of memory requirements.

• 기술혁신학회지
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• 제8권1호
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• pp.237-260
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• 2005

This paper aims to review and analyse the introduction process of performance management system(PMS) in the R&D sector. It also examines initial problems and future policy directions of the new system. Theory part deals with various approaches to the PMS and the relation between research evaluation and performance management. The paper then describes how the PMS has been introduced in the National R&D Program by the MOST in terms of the contents of strategic goal, performance goal and performance indicator together with their development process. After this, it captures problems arising in the initial phase and then suggests how they should be solved on the ministerial and cross-ministerial level. Discussed are following topics: lack of strategic planning, grouping of heterogeneous sub-programs, duplication between the OMS and other existing research or performance evaluation. The paper finally suggests policy implications using the logic model which has been developed in a series of recent international conferences.

• 한국정보과학회:학술대회논문집
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• 한국정보과학회 2007년도 한국컴퓨터종합학술대회논문집 Vol.34 No.1 (D)
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• pp.132-136
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• 2007

배전계통은 전력계통에서 전력을 소비자에게 공급하는 전반적인 분야를 말한다. 이와 관련된 애플리케이션으로는 고객정보관리시스템(CIS), 정전관리프로그램(OMS), 계량정보시스템(AMR), 작업관리프로그램(WM)등이 있다. 이들은 사용자정보와 전력사용에 관한 정보를 활용하여 배전 시스템의 안정적 운영에 필요한 기능을 수행하고 있다. 하지만 현재 운영 중인 시스템들은 각 시스템이나 애플리케이션마다 각각 사용자정보와 전력사용 이력정보를 관리하고 있어서 데이터가 중복되어 관리되고 있거나, 서로 정보를 교환하는데 제약을 가지기도 한다. 본 논문에서는 이와 같은 배전계통 애플리케이션에 SOA(Service Oriented Architecture)를 적용하여 시스템간 정보의 흐름이 원활하게 이루어 질 수 있도록 애플리케이션들을 통합하는 방법에 대해 기술한다.

• 전자통신동향분석
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• 제15권3호통권63호
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• pp.1-9
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• 2000

XML은 인터넷과 e-비즈니스를 위한 새로운 언어 구조이다. XML이 갖는 장점을 전자상거래에 이용하기 위해 다양한 XML 기반 전자상거래 프로토콜들이 생겨났고, 전자상거래의 보급 속도와 비례하여 XML의 보급률도 증가하고 있는 실정이다. XML 사용 빈도수가 증가하고 XML 기반 전자상거래 프로토콜들이 급증하고 있는 현재 추세에 따라 여러 단체나 회사들은 XML 기반 어플리케이션 표준과 전자상거래 환경 사이의 상호운용성을 위한 프레임워크 개발에 박차를 가하고 있다. 이에 본 논문에서는 CommerceNet의 eCo, CommerceOne의 CBL, OASIS와 UN/CEFACT의 ebXML, OTP 컨소시엄의 OTP, RosettaNet, OMS Service Ltd.의 EDML, cXML 등 XML과 관련하여 각 전자상거래 단체나 회사들이 추진중인 표준화 동향을 살펴보았다.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2008년도 추계학술대회 논문집 Vol.21
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• pp.73-73
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• 2008

In this work, the study on the $SiO_2$ film non-uniformity by PECVD (Plasma Enhanced Chemical Vapor Deposition) was performed. Plasma diagnostics was analyzed by a DLP(Double Langmuir Probe) and a probe-type QMS(Quadrupole Mass Spectrometer) in order to investigate the spatial distribution of the plasma species in the chamber. The relationship between the plasma species and the depositing rate of the films was examined. On the basis of this work, it was confirmed that O radical density mainly contributed to the increase in the depositing rate of the $SiO_2$ films and the electron temperature in the plasma had a main effect on the formation of the oxygen radicals.