• 대한디지털의료영상학회논문지
• /
• 제15권1호
• /
• pp.39-45
• /
• 2013

PACS Import external image of the thread of the tasks and duties of hospital revenue and business efficiency falls over time. 500 beds or more medical imaging import work outside of the hospital, most hospitals use a PC, KIOSK, and was used in 15 hospitals where, CD Autoloader where use was the only one. Working hours compared to CD and DVD media to test the results of the Import target PC, KIOSK, CD Autoloader Import spent less time in the order, and also the greater capacity of CD Autoloader four times the PC, KIOSK 2 times Import could be implemented quickly. In addition, the waiting time of the patients was measured using the PC's time to Import, 2011 14.5 minutes and the average patient waiting time, KIOSK and later use CD Autoloader 2012 average patient wait time of 8.25 minutes, 43% of the existing average waiting time was 5.25 minutes to reduce. However, KIOSK case of a patient in a way that directly Import latency time was soon. Import of three ways: in terms of efficiency and excellent CD Autoloader way, the patient waiting time in terms of ease of use and KIOSK was excellent. In addition, with the introduction of CD Autoloader with KIOSK Joint of the items waiting time of patients and patient satisfaction rating is considered to be a major contribution.

• 한국방재안전학회논문집
• /
• 제5권2호
• /
• pp.35-42
• /
• 2012

지방자치단체 재난관리부서 실무책임자(재난관리자)의 역할은 주민들의 생명과 재산을 담보하는 업무의 중요성에도 불구하고, 이들의 역할과 책임에 대한 구체적 연구결과나 문헌조차 없는 실정으로 이들의 역할정립이 시급한 시점이다. 본 연구에서는 일반 행정관리자의 역할과는 달리 재난이라는 특수한 상황 속에서 재난관리자가 수행해야할 차별화된 위상과 역할을 국내외 문헌들에 대한 고찰을 통해 정립해 봄을 목적으로 한다. 재난관리자의 역할이 일반 행정관리자의 역할과 상당부분 유사한 부분이 있다고 보여지지만, 인명 및 재산보호나 특수영역으로서 전문가적 역할도 강조되어야 한다는 점이 차별화 되었다. 재난관리 단계별로 예방, 복구 등의 업무 수행에 있어서는 중하위직에서 이루어지는 관리업무가 주류를 이루고 있는 반면, 대비 및 대응단계의 업무수행은 긴박한 의사결정지원, 인접부서 또는 타기관간의 협조와 조정, 주민설득, 자원의 동원 등 대내외적 조정, 통제역량 및 정무적 판단능력이 수반되어야 하므로 중상층 이상의 관리자 역할이 요구된다.

• 한국태양에너지학회 논문집
• /
• 제27권2호
• /
• pp.19-27
• /
• 2007

The previous study was conducted to develop an air source multi heat pump system that could be operated with the solar collector and air source heat exchangers as heat source of the system. There is a winter-sowing problems in air source multi heat pump system when the outdoor temperature goes down under freezing point. The winter-sowing problem was solved by adapting R-22 refrigerant as working fluid in the previous study. However, when the system operated at high temperature, another problems are come out such as overheating of the solar collector outlet which lead to the superheat of the compressor inlet of the heat pump system. The condition could deteriorates a compressor in some case. In this study, we installed the anti-superheating devices on the previously developed system. As results of system performance test, COP of the system with anti-superheating technique is 2.4. It is a little improved COP compare to previous study's 2.23. In the results of multi heat source heating system, during operating solar collector, COP is relatively high between $200\;W/m^2$ and $400\;W/m^2$ solar intensity. It is recommended to extend the study on performance optimization with balancing the solar collect and capacity of compressor at higher solar irradiation conditions.

• 한국유체기계학회 논문집
• /
• 제17권1호
• /
• pp.5-11
• /
• 2014

The purpose of this paper is to investigate an analytical approach for opening performance evaluation of the nuclear pressure safety valve based on standard codes such as ASME or KEPIC. It is well-known that safety valve is considered as one of pressure relief valves for protecting a boiler or pressure vessel from exceeding the maximum allowable working pressure. When pressure in a container reaches its set pressure, the safety valve commences discharging the internal fluid by a sudden opening called as popping. Safety valve is usually evaluated by set pressure, full open, blow-down, leakage and flow capacity. The test procedure and technical requirement for performance evaluation is described in international code of ASME code such as BPVC. The opening characteristics of steam safety valve can be analyzed by computational fluid dynamics (CFD) and steam shaft dynamics. First, the flow analysis along opening process is simulated by running the CFD models of the ten types of opening steps from 0 to 100%. As a analysis result, the various CFD outputs of flow pattern, pressure, forces on the disc and mass flow at each simulation step is demonstrated. The lift force is calculated by using the forces applied on disc from static pressure and secondary flow. And, the effect of huddle chamber or control chamber is studied by dynamic analysis based on CFD simulation results such as lift force. As a result, dynamics analysis shows opening features according to the sizes of control chamber.

• 한국ITS학회 논문지
• /
• 제8권3호
• /
• pp.20-26
• /
• 2009

최근에는 각 지자체별 BIS(Bus Information System)/BMS(Bus Management System) 및 ITS(Intelligent Transportation Systems)을 도입함에 따라 시설물 주차 및 노변주차를 무인으로 운영하여 운영구간의 불법행위는 줄어들고 있으나 주변지역의 주차난은 더욱 심각해지고 있으며 단속에 의한 운영으로 시민들의 의식 개선 효과는 미비한 실정이다. 그러므로 주차시설의 관리 및 운영의 효율성, 사용자의 편의성 향상 시켜 근본적인 주차시설 부족을 해결할 필요가 있다. 본 논문에서는 우선 선진국의 주차관리 및 운영체계 현황에 대해 분석하고 다음으로 국내 여건에 맞는 노변주차 운영방식 및 시스템을 설계 한다. 마지막으로 시스템 개발시 기반이 되는 요구조건을 제시하였다.

• 대한치과기공학회지
• /
• 제19권1호
• /
• pp.131-152
• /
• 1997

1002 Students in the dept. of the dental laboratory technology of 8 college around the nation were surveyed on the three items-the professional attitude, their job-plan after graduation and the conditions and causes exerting influence on their choice of a job. 1. professional Consciousness About the purpose to take a job, 41.8% of all the students replied the economic stability. Another question is on the formation of the professional consiousness. 34.7% said they didn't accomplish it yet, while 32.1% did. This shows that the number of those hwo are resolute isnt's too low in comparison with those not. On the considering factors when they take a job, stability was first favored, with the capacity to improve itself and then profitability following on as second and third. 2. Job-plan after School 78.9% of all wanted to work in their major field as a dental technician. About their knowledge of the job, 60.4% know it well; though, their confidence in getting the job is close to the low level wholly. 3. Factors Having Influence on the selection of a job About the most decisive point in one's choice of job, 37.3% selected first the degree of completion of his major-field knowledge and skill. The most critical person when choosing his job was himself, a great number of students answered. About the working area favored, 52.9% first answered Seoul on the reason why it is a familiar place where their family or relatives have already lived and the special knowledge related to the job is easilly accessed.

• International Journal of Concrete Structures and Materials
• /
• 제11권1호
• /
• pp.171-183
• /
• 2017

Strengthening reinforced concrete (RC) beams with openings by using aramid fiber reinforcement polymers (AFRP) on the beams' surfaces offers a useful solution for upgrading concrete structures to carry heavy loads. This paper presents a repairing technique of the AFRP sheets that effectively strengthens RC beams, controls both the failure modes and the stress distribution around the beam chords and enhances the serviceability (deflection produced under working loads be sufficiently small and cracking be controlled) of pre-cracked RC beams with openings. To investigate the possible damage that was caused by the service load and to simulate the structure behavior in the site, a comprehensive experimental study was performed. Two unstrengthened control beams, four beams that were pre-cracked before the application of the AFRP sheets and one beam that was strengthened without pre-cracking were tested. Cracking was first induced, followed by repair using various orientations of AFRP sheets, and then the beams were tested to failure. This load was kept constant during the strengthening process. The results show that both the preexisting damage level and the FRP orientation have a significant effect on strengthening effectiveness and failure mode. All of the strengthened specimens exhibited higher capacities with capacity enhancements ranging from 21.8 to 66.4%, and the crack width reduced by 25.6-82.7% at failure load compared to the control beam. Finally, the authors present a comparison between the experimental results and the predictions using the ACI 440.2R-08 guidelines.

• 한국지반공학회:학술대회논문집
• /
• 한국지반공학회 2008년도 추계 학술발표회
• /
• pp.992-1006
• /
• 2008

The tunnel type spillways is under construction to increasing water reservoir capacity in Dae-am dam. Cutting-slope adjacent to outlet of spillways had been originally designed to be 63 degrees and about 65m in height. Examination is carried out in preceding construction that it is caused to some problems possibility which of machine for slope cutting couldn't approach to the site, blasting for cutting slope might have negative influence on highway and roads nearby, and fine view along the Tae-hwa river would be eliminated. In order to establish stability of tunnel and more friendly natural environment that we are carry out detailed geological surface survey and analysis of slope stability. So, we are design and construct for tunnel excavation with possible method that it is keep up natural slope. The result of survey and analysis that natural slope was divided 3 zone(A, B, C zone). In A and B zone, in first removed floating rock, high tensile tension net is install that it prevent of release and falling of rock, in order to security during under working. In addition to, pre-stressed rock anchor is install purpose of security during tunnel excavation because of fault zone near vertical developed above excavation level. Zone C is relatively good condition of ground, design is only carry out random rock bolt. All zone are designed and constructed drainage hole for groundwater and surface water is easily drain. Desinged slpoe is harmony with near natural environment. Successfully, construction is completed.

• 한국지반공학회:학술대회논문집
• /
• 한국지반공학회 2008년도 추계 학술발표회
• /
• pp.1532-1548
• /
• 2008

The tunnel type spillways is under construction to increasing water reservoir capacity in Dae-am dam. The tunnel outlet was planned to be made after installing slope stabilization system on natural slope there. Generally, the tunnel outlet is made perpendicularly to the slope, but in this case, it had to be made obliquely to the slope for not interrupting flow of river. Because of excavation in condition of natural slope caused to deflecting earth pressure, the outlet couldn't be made. So, artificial ground made with concrete that it was constructed in the outside of tunnel for producing the arching effect which enables to make a outlet. We were planned tunnel excavation was carried out after artificial ground made. Artificial ground made by poor mix concrete of which it was planned that the thickness was at least 3.0m height from outside of tunnel lining and 30cm of height per pouring. Spreading and compaction was planned utilized weight of 15 ton roller machine. In order to access of working truck, slope of artificial ground was designed 1:1.0 and applied 2% slope in upper pert of it for easily drainage of water. In addition to, upper pert of artificial ground was covered with soil, because of impaction of rock fall from upper slope was made minimum. The tunnel excavation of the artificial ground was designed application with special blasting method that it was Super Wedge and control blasting utilized with pre-percussion hole.

• 디지털융복합연구
• /
• 제15권4호
• /
• pp.251-258
• /
• 2017

본 연구의 목적은 노인요양시설 종사자들을 대상으로 내부마케팅요인이 조직 구성원의 직무만족, 감정노동과 조직몰입에 미치는 영향을 분석하는 것이다. 구조화된 설문조사를 통해 자료를 수집 하였으며, 최종분석 대상자는 경남지역과 경북지역의 노인요양시설에 근무하는 191명이고 연구모형의 가설검증은 AMOS 18.0을 이용하여 경로분석을 시행하였다. 본 연구의 주요 결과는 다음과 같다. 내부마케팅 요인이 직무만족에는 내부커뮤니케이션, 경영자지원만 영향을 미쳤으며, 감정노동에는 경영자지원만, 조직몰입에는 내부커뮤니케이션과 경영자지원이 영향을 미치는 걸로 나타났다. 본 연구결과의 시사는 장기요양시설 종사자들의 조직몰입 성과를 높이기 위해서는 바로 내부마케팅 역량 강화가 아니라 1차적으로 직무성과를 높여야 하며, 2차적으로 직무성과를 높이기 위해서는 종사자들의 직무만족과 감정노동에 대한 서비스 질의 변인을 좀 더 다양화한 연구가 필요하다.