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Ethylene Oxide 처리와 Gamma 선 조사가 건조 농산물의 품질에 미치는 영향
김영재,양재승,조한옥,권중호,변명우 한국식품위생안전성학회 1986 한국식품위생안전성학회지 Vol.1 No.2
Gamma irradiation as a new physical treatment was applied to comparative researches with a conventional chemical fumigant on the microbiological and physicochemical qualities of selected agricultural products such as powdered hot pepper soybean paste, oyster mushroom powder, carrot flake, and raw sesame. The microorganisms contaminated in the sample, including total bacteria, thermophiles, acid tolerant bacteria, fungi, osmophilic molds and coliforms were sterilized with irradiation doses of 7-10 kGy, while ethylene oxide (E.O) fumigation proved insufficient for the destruction of them. An optimum dose of irradiation was less detrimental than E.O. fumigation to the physicochemical properties of the sample. Sensory evaluation after three months of storage at room temperatures showed that the overall acceptability of irradiated sample was higher than that of the nontreated control as well as E.O. fumigated samples.
실시간 CORBA상에서의 신뢰성 지원을 위한 결함허용 서비스의 설계 및 구현
김영재,박기용,홍성준,한선영 한국정보처리학회 2001 정보처리학회논문지 C : 정보통신,정보보안 Vol.8 No.1
현재 CORBA는 분산환경에서 소프트웨어의 복잡성을 해결하기위한 방안으로 제시되어왔으나 데이터 전송에 대한 신뢰성 보장성이 부족하다. 특히 네트워크이 불안하거나 정체 되었을 때 이를 처리해주는 메카니즘이 없는 실정이다. 기존 CORBA에서는 클라이언트가 서버객체가 가지고 있는 객체를 서비스 받을 때, 네트워크상의 정체가 있는 경우 클라이언트는 무조건 기다려야 하는 단점이 있다. 이에 본 논문은 이러한 정체 시 요구된 서비스 객체들 다른 서버 객체가 지능적으로 우회 시켜주는 결함허용 서비스(Fault-Tolerant CORBA Service)를 제안한다. 이를 위해 본 논문은 신뢰성 지원을 위한 결함허용 서비스를 CORBA ORB에 확장하여 설계 및 구현하였다. 그러므로 제안된 결함허용 서비스를 통해 신뢰성 잇는 연결을 보장할 수 있다. Current CORBA has been suggested a solution for complexity of software in distributed environment. But it can't provide reliability about data transfer. For instance, CORBA can't provide object to client when the network are unstable or congested. In an existing CORBA, client has to wait when there is congestion between client and object implementation while client get a service from object implementation. So In this paper, we propose Fault-Tolerant CORBA Service (FTS) which has an intelligent redirection about an object that client requests. Moreover, we designed and implemented Fault-Tolerant Service to provide reliability by extending existing CORBA ORB. Therefore it provides reliable connection throughout the proposed Fault-Tolerant Service.
차별 제어와 키 관리 기능을 통한 트리 기반의 신뢰성 있는 멀티캐스트 프로토콜의 설계 및 구현
김영재,박은용,안상준,현호재,한선영,Kim, Yeong-Jae,Park, Eun-Yong,An, Sang-Jun,Hyeon, Ho-Jae,Han, Seon-Yeong 한국정보처리학회 2002 정보처리학회논문지 C : 정보통신,정보보안 Vol.9 No.2
IP 멀티캐스트는 하나의 연결을 통해 데이터를 동시에 여러 컴퓨터로 보낼 수 있게 함으로서 비디오 스트림과 같은 대용량의 데이터 전송에 효율적으로 사용될 수 있다. 하지만, IP 멀티캐스트는 UDP에 기반한 best-effort 서비스로서, TCP에서 제공하는 신뢰 전송, 혼잡 제어 및 흐름 제어를 제공하지 못하는 단점이 있다. 또한 멀티캐스트 그룹 참가자는 어떠한 인증 과정이나 절차 없이 멀티캐스트 그룹에 참가/탈퇴가 가능하고, 하나의 서브넷 내에서는 브로드캐스트를 이용하기 때문에, 데이터의 기밀을 유지하기가 어렵다는 단점이 있다. 본 논문에서는, 일-대-다 멀티캐스트 응용에 적합한 흐름 제어, 키 관리 기법을 제공하는 신뢰전송 프로토콜인 TRDMP를 제안한다. While the Internet is suffering from the massive data such as video stream, IP multicast can ease the load of the Internet by enabling one copy of digital information to be received by multiple computers simultaneously. But If multicast is based on UDP, packets are delivered using a best-effort Policy without any reliability, congestion control or flow control. Multicast group members can join or leave a multicast group at will, and multicast uses broadcast mechanism, it's very hard to keep security from unauthorized members. In this paper, we introduce a new reliable multicast protocol TRDMF proper for one-to-many multicast model with reliability, flow control, congestion control and key management.
술중 과용투여한 Epinephrine 에 의한 심한 부정맥의 치험 : 1 례 보고
김영재,정규섭,김해규,진영준 대한마취과학회 1985 Korean Journal of Anesthesiology Vol.18 No.3
Cardiac arrhythmia frequently occurs under general anesthesia. It has been reported that catbecholamines increase the incidence of arrhythmia during anesthesia with halothane, which sensitizes the myocardium to the effects of catbecholamines. We experienced epinephrine-induced cardiac arrhythmia during anesthesia with halothane due to the inadvertent use of a large does of epinephrine to achieve hemostasis. When the cardiac arrhythmia was noted by ECG, immdeiated treatment was performed and the result is summarized.
김영재,박용환 대한건축학회 2000 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.20 No.1
The purpose of this study was to reach Formation and Restoration of neighborhood's relation on the Squandering settlement's Redevelopment. we are to suppose behaviors using outer space and place. BY scattering housing's Redevelopment, The Feature of scattering residence which have been before Redeveloping will be destroyed, extinguished. and then to form neighborhood elationship in scattering settled's redevelopment This stay need to consider placers of neighborhood and formation of public space and relevant demensional Design Through interview, Trace measure, Behavioral map and Cognitive mapping's Reach, we are intend to catch residual neighborhood consciousness and behaviors. The behavioral map by direct observation and interview were conducted as the man research method. and then the analysis of the observed contents is performed focusing on the attributes of user groups, the types of behavior, the concurrence frequency, location of activities created by mixed use building for the dwelling and neighborhood facilities 11th markets stores and so on, and characters of streak Also, by understanding the squattering settle's spatial structure and the press of phenological sides, in this study we are intend to propose a mood for neighbofuod restoration and residential satisfaction appraisal. We wilt be intend to witness the outer' she's usage far neighborhood's relational formation on the center of physical structure and residentision character by analyzing and .observing street contraction and neighborhood facilities's locational character through the Squattering settlement's development To conclusion, we will be able to end the Architectural alternative for community formation.
바나듐 회수 공정 설계를 위한 염배소 반응의 열역학적 분석
김영재,이현주,박현식,김수경,남철우 한국자원공학회 2021 한국자원공학회지 Vol.58 No.1
In the present study, a thermodynamic analysis was carried out in order to determine the variables affecting the soda-roasting process for vanadium extraction. Prior to the analysis, experiments were performed at varying temperatures and Na2CO3 concentrations. A vanadium leaching efficiency above 70% was achieved at 1,273 K with 30 wt.% Na2CO3 addition. Results of the thermodynamic analysis revealed that the formation of the liquidus Na2CO3 phase is the key factor for achieving a high leaching rate of vanadium in the soda-roasting process. Compared to the other reported process conditions, the determining factor was verified from a thermodynamic viewpoint. 본 연구에서는 포천에 부존하는 바나듐 함유 티탄철석으로부터 바나듐을 회수하기 위한 염배소 공정의 설계를 위한 공정 조건에 중요한 인자를 열역학적 관점에서 확인하였다. 열역학 계산에 앞서, 실제 실험을 통하여 온도 및 Na2CO3의 첨가 조건에 따른 바나듐의 수침출률 변화를 확인하였다. Na2CO3 30 wt% 첨가 및 1,273 K 열처리 조건에서 70% 이상의 높은 바나듐 침출률을 확인하였다. 실제 실험 결과와 열역학 계산 결과를 토대로 하여, 바나듐 수침출에 있어서 중요한 인자는 액상의Na2CO3 형성임을 도출하였다. 마지막으로 국외 바나듐 함유 티탄철석에 대한 염배소 연구 결과와열역학 계산 결과와의 비교를 통하여, 본 연구에서 도출한 액상의 Na2CO3 형성이 최적의 염배소 조건 선정에 있어서 중요한 변수 인자임을 확인하였다.
외식업 종사자의 직무특성과 직무소진의 관계 및 심리적 주인의식의 조절효과
김영재,안관영 인문사회 21 2019 인문사회 21 Vol.10 No.2
This paper reviewed the relationship between job demand-resource (role overload, role ambiguity, self-development, social support, job autonomy) and job burnout (emotional exhaustion, reduced personal accomplishment), and the moderating effect of psychological ownership (organizational ownership, job ownership). The results of hierarchical multiple regression analysis, based on the reponses from 232 employees in dining industry, showed that role ambiguity appeared to be negatively related with emotional exhaustion (EE), reduced personal accomplishment (RPA), and job autonomy appeared to be positively related with EE and RPA. In moderating effects, job resources (self-development, social support, job autonomy) interacted with psychological job ownership to have negative effects on EE and RPA. Further studies will need to be conducted to reflect the changing consciousness and behavioral characteristics of the survey participants over time. 본 연구는 직무특성으로서 직무요구(역학과다, 역할모호)와 직무자원(자기개발기회, 사회적지원, 직무자율성)이 미치는 효과와, 심리적주인의식(직장주인의식, 직무주인의식)의 조절효과를 확인하는데 목적이 있다. 강원 영서지역의 외식업체 종사자 232명의 설문결과를 바탕으로 위계적 다중회귀분석을 실시하였다. 분석결과 역할과다는 정서적 탈진과 성취감저하에 긍정적 영향을, 역할모호는 성취감저하에 긍정적 영향을 미치는 것으로 나타났다. 직무자율성은 정서적탈진과 성취감저하에 부(-)의 영향, 사회적지원은 정서적탈진에 부(-)의 영향, 자기개발기회는 성취감저하에 부(-)의 영향을 각각 미치는 것으로 나타났다. 직무주인의식은 자기개발기회, 사회적지원, 직무자율성과 정서적탈진, 성취감저하의 관계에서 상당한 조절효과를 갖는 것으로 나타났다. 본 연구를 통해 외식업 종사자의 직무소진을 낮추어 서비스품질을 제고하는데 기여할 수 있을 것이다. 또한 조사대상이 지역적으로 제한되었다는 점에서 추후 더욱 광범위한 지역을 대상으로 엄밀한 연구가 요망된다.
Fibroma on the palate: A case report
김영재,장기택,한세현,김종철,이상훈,김정욱 대한소아치과학회 2003 大韓小兒齒科學會誌 Vol.30 No.2
The fibroma is the most common benign soft-tissue tumor found in the oral cavity and most commonly occurrs in sites predisposed to irritation or trauma. Treatment is conservative surgical excision. Seldom does the lesion recur. A 14-year old girl was referred to the Department of Pediatric Dentistry for evaluation and management of a mass on the palate. The patient's parents reported the slow growth of this soft tissue lesion over a 6-month period. A history of trauma or irritable habits was denied.Clinical examination revealed an asymptomatic, soft, pedunculated elevation of mucosa, measuring 3cm in diameter. Excisional biopsy of the lesion supported a diagnosis of fibroma. There have been no signs of recurrence during follow up of 4 years after surgical intervention. The clinical picture, pathology and management of the case are described, and the differential diagnosis and treatment are discussed. 구개의 섬유종 : 증례보고
대학스키 동아리 부원들의 참여몰입이 참여의도와 전문화에 미치는 영향
김영재,김석일 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.6
The purpose of this study was to examine relationships among University Students ski athlete sports behavior commitment, participation intention, specialization To accomplish this research purpose, there were two research questions Firstly, Will the participation commitment in ski activity influence the sports behaviour intention? Secondly, Will the participation commitment in ski activity influence the mania's specialization? The population for this study was participants in ski activity located in Seoul and Kyungki. The final 206 responses, collected by cluster random selecting method, were used in the data analysis procedure. Sports commitment was measured by the expansion of the sports commitment behavior scale developed by Jung yong-gak(2004). Behaviour intention was measured based on the work of Kim (2001). The results of a regression indicated that there were significant cognitive commitment, behavioral commitment effect. These results were discussed with theoretical, and methodological perspectives of sports commitment behavior, and future study was suggested.