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기둥 방폭 보강용 PROTECT 패널의 충격저항성능 해석
손성곤,박민재,류재호,주영규 한국복합신소재구조학회 2016 복합신소재구조학회 학술발표회 Vol.2016 No.04
This study investigates the analytical study for evaluating impact resistance capacity and failure mode of PROTECT (Poly-Resilience-Oriented hybrid TEChnology plaTe) panel. PROTECT panel is a composite panel with two steel plates and nano-composite. In order to perform impact analysis, dynamic properties of steels and nano-composite were determined. Finite element analysis is performed with these properties under the drop-weight impact. From the FEA, different failure modes corresponding to different impact energy is derived.
손성곤,박민재,류재호,주영규 대한건축학회 2017 대한건축학회논문집 Vol.33 No.2
As the threat of terrorist attacks or explosive accidents increases, interest in design and construction of blast resistant structures has increased. Recently, the blast reinforcement for existing buildings which were not designed to resist blast loading has been issued, and the demands for blast protective materials are continually growing. This study investigates the analytical study for evaluating impact resistance capacity and failure mode of PROTECT (Poly Resilience-Oriented hybrid TEChnology plaTe) panel. PROTECT panel is a composite panel with two steel plates and nano-composite. Since it is a multi-layer structure, there are advantages for the blast resistance. The impact resistance analysis of PROTECT panel is performed with the impact energy, the thickness of the steel plates and nano-composite as variables. In order to perform impact analysis, dynamic properties of steels and nano-composite were determined. Finite element analysis is performed with these properties under the drop-weight impact. From the finite element analysis, different failure modes corresponding to different impact energy is derived.
외식업종업원의 고객지향성 역량과 고객서비스몰입, 경영성과간의 구조적 관계
손성곤,김형철,윤종록 한국경영컨설팅학회 2015 경영컨설팅연구 Vol.15 No.1
본 연구는 외식업영업성과를 제고하기 위해 외식업 종업원의 고객지향성역량이 고객서비스몰입, 영업성과에 미치는 영향요인을 파악하였다. 예비조사를 실시하여 작성한 설문지를 수도권(서울, 경기, 인천), 제주, 부산, 광주지역에 위치한 단체급식, 패밀리 레스토랑, 호텔, 요식업에 종사하는 사원, 팀장, 과장, 부장, 실장을 대상으로 설문조사하여 자료를 수집하였다. 고객지향성역량을 독립변수, 고객서비스몰입을 매개변수, 외식업영업성과를 결과변수로 모델을 설정하여 상관관계분석, 구조방정식 모형으로 가설검증을 실시하였다. 가설 검증 결과는 다음과 같다. 첫째, 종업원의 역량 중 고객지향성 역량은 외식업영업성과에 유의한 영향을 미치는 것으로 나타났다. 둘째, 고객서비스몰입은 외식업영업성과에 유의한 영향을 미치는 것으로 나타났다. 서비스종사자의 고객에 대한 서비스의 헌신과 노력인 고객서비스몰입은 외식업영업성과에 유의한 영향을 미치는 것으로 나타났으므로 외식업영업성과를 높이기 위해서는 외식업에 종사하는 종업원이 고객서비스몰입을 높이기 위한 부단한 노력이 필요할 것으로 생각되며 본 연구를 통해 외식업의 실무적인 측면에서 보다 많은 시사점을 제공할 수 있었다. On management strategies for the survival of companies that can respond well to changes in the economic environment, domestic and other interested in a situation where the business environment is changing rapidly, is very high. Foodservice customers' needs and changes in the competitive environment in order to survive with the rapid increase in demand to open new market space to create a new management strategy to dominate this market, creating products and services for consumer values and corporate values. First, the demographic characteristics of Foodservice Employees to Learn, frequency analysis was conducted for the core competencies of content validity in order to verify the reliability and factor analysis, the Cronbach's α coefficients were calculated. First of employee competencies and business performance management performance in relation to competency achievement orientation and customer orientation capabilities of the positive (+) significant influence from affecting business performance showed Factors other than competence showed a significant influence indirectly through mediation of service orientation and service commitment. Service organization heonsik competence, customer orientation skills, customer orientation skills, organizational commitment and competence, and organizational innovation capability management performance parameters to service orientation significant effect of the positive (+) effect appeared, and organizational innovation capabilities commitment to business performance parameters have been identified that affects a significant positive (+). Second, employees, employee competency and service orientation and relationship competencies competency achievement orientation, customer orientation skills, A service-oriented organizational innovation capability, organizational commitment and competence to be affecting a significant positive (+) respectively. service commitments, such as service orientation adopted in this study, in addition to variables applicable variable will be. Continuously extended by considering various parameters applicable employee competencies and more research will be needed. In particular, the results for employee competency factors at the same time, the employee's reaction and the reaction of customers to identify and investigate the relationship between the effects of different variables, and also applied to the field of the result variable bit more in-depth understanding of the industry, or implications can present research should be done consistently. Third, if the plan is in place, the objective of financial analysis and business performance data that can be utilized to analyze the financial situation, but the dependent variable in this study, divided into the financial management performance and non-financial business performance management performance management performance measurement is more useful than research will, in the future, is thought to be longitudinal analysis.
자연과 실험집단내 Drosophila melanogaster 제2염색체의 유전적 변이성에 대한 비교 연구
손성곤,최영현,이원호 한국환경과학회 1994 한국환경과학회지 Vol.3 No.4
The genetic variabilities of second chromosomes concealed Sasang natural and experimental populations of Drosophila melanogaster have been analyzed. The experimental population was composed of D.melanogaster which had the lethal-free second chromosome collected from Sasang natural population in 1982. The results were as follow; The mean frequencies of deleterious genes were estimated to be 33.33% in Sasang natural population and 31.72% in experimental population. The allelism rates in lethal genes isolated from the natural and experimental populations were calculated to be about 0.95% and 12.28%, respectively. The allelism rates between lethal genes isolated from the natural population and those of the experimental population were calculated to be about 0.01%. The mean values of elimination by frequencies of deleterious genes and allelism rates were 0.0011 in the natural population and 0.0124 in the experimental population. The frequencies of phenotypic sterility of males in the natural and experimental populations were estimated to be 1.49% and 1.36%, respectively. The frequencies of genotypic sterility of females and males were estimated to be 0.90% and 1.80% in the natural population, and that of males was 2.38% in the experimental population.