• 한국조리학회지
• /
• 제19권3호
• /
• pp.194-208
• /
• 2013

본 연구는 특급호텔 조리사가 인지하는 상사의 변혁적 리더십이 직무만족 및 직무성과에 미치는 영향에 대한 이론적 연구 체계를 제시하였으며, 이러한 이론적 배경을 바탕으로 모형을 도출하고 실증적 연구를 통해 가설을 확인하였다. 본 연구에서 수집된 245개의 표본의 일반적인 특성을 확인하기 위하여 빈도분석을 실시하였고, 상사의 변혁적 리더십과 부하의 직무만족 및 직무성과의 타당도 검증을 위해 탐색적 요인분석을 하였으며, 신뢰성 검증을 위해 Cronbach's a를 이용하였다. 또한 변혁적 리더십과 직무만족, 그리고 직무성과의 상관관계를 알아보기 위해 정준상관분석을 사용 하였으며, 본 연구 모델 및 가설을 검증하기 위해 SPSS ver. 18.0 통계패키지를 통해 다중회귀분석을 실행하여 변수들의 영향관계를 검증하였다. 연구의 결과를 요약하면 다음과 같다. 첫째, 변혁적 리더십의 카리스마(p< 0.01)와 개별적 배려(p<0.1)만이 직무만족에 유의한 정(+)의 영향을 미치는 것으로 나타났다. 둘째, 변혁적 리더십이 직무성과에 미치는 영향을 회귀계수를 통하여 알아본 결과 상사의 지적자극만이 조리사의 직무성과에 영향(p<0.005)을 미치는 것으로 나타났다. 실증분석을 통해 상사의 변혁적 리더십은 직무만족과 직무성과에 상관관계를 가지고 있으며, 유의적인 영향을 미친다는 결과를 통해 변혁적 리더십의 증가를 위한 시스템적 지원과 동기적측면의 지속적인 환경을 제공하려는 노력이 필요하겠다.

• 한국복합재료학회:학술대회논문집
• /
• 한국복합재료학회 2000년도 추계학술발표대회 논문집
• /
• pp.38-41
• /
• 2000

High temperature cure characteristics of polyester resin systems were investigated by isothermal and dynamic differential scanning calorimetries. During isothermal scanning, the experimental procedure was modified to reduce the initial Boss of heat. no kinetic equation from the isothermal experiment was compared with that from the dynamic experiment.

• 한국자원식물학회지
• /
• 제32권6호
• /
• pp.644-668
• /
• 2019

Dysphania ambrosioides (L.) Mosyakin & Clemants which belongs to Chenopodiaceae/Amaranthaceae sensu in APG system has been known as a useful plant in various fields as well as an invasive species spreading all over the world. To understand its phylogenetic relationship with neighbour species, we completed chloroplast genome of D. ambrosioides collected in Korea. Its length is 151,689 bp consisting of four sub-regions: 83,421 bp of large single copy (LSC) and 18,062 bp of small single copy (SSC) regions are separated by 25,103 bp of inverted repeat (IR) regions. 128 genes (84 protein-coding genes, eight rRNAs, and 36 tRNAs) were annotated. The overall GC content of the chloroplast genome is 36.9% and those in the LSC, SSC and IR regions are 34.9%, 30.3%, and 42.7%, respectively. Distribution of simple sequence repeats are similar to those of the other two Dysphania chloroplasts; however, different features can be utilized for population genetics. Nucleotide diversity of Dysphania chloroplast genomes 18 genes including two ribosomal RNAs contains high nucleotide diversity peaks, which may be genus or species-specific manner. Phylogenetic tree presents that D. ambrosioides occupied a basal position in genus Dysphania and phylogenetic relation of tribe level is presented clearly with complete chloroplast genomes.

• 한국가시화정보학회:학술대회논문집
• /
• 한국가시화정보학회 2005년도 추계학술대회 논문집
• /
• pp.54-57
• /
• 2005

Flow characteristics of hull wake behind a container ship model were investigated experimentally with varying loading condition and Reynolds number. Large-scale bilge vortices of nearly the same strength are formed in the near-wake region. They are symmetric and counter-rotating with respect to the wake centerline for all loading conditions tested. With going downstream for both design and ballast loading conditions, the strength of the bilge vortices decreases and the wake region expands due to diffusion and viscous dissipation. Under the design loading condition, the bilge vortices start to appear at St=0.363 transverse plane above the propeller-boss. For the ballast loading condition, however, the bilge vortices start to appear at St=0.591 below the propeller-boss. They move upward as the hull wake goes downstream and Reynolds number increases. These wake characteristics, under the ballast loading condition, may weaken the propulsion and cavitation performances of the propeller, which are usually optimized for the design loading condition.

• 한국항해학회지
• /
• 제12권2호
• /
• pp.23-32
• /
• 1988

This paper offers a method of magnetic compass adjustment for the vessel alongside the wharf using newly designed magnetic north former, which makes the same magnetic field-change as the turning vessel does. The characteristics of the magnetic north former was examined by observing the deviation curves of the magnetic compass installed on the compass deviascop at laboratory. The magnetic north former consists of A and B arms which hold the permanent bar magnets at the both ends of each arm. The arm is to rotae in the horizontal plane about the vertical axis fixed at the center boss of the magnetic compass and it is to compensate the horizontal plane about the vertical axis fixed at the center boss of the magnetic compass and it is to compensate the horizontal component of the earth's field. The B arm makes the artificial magnetic north around the magnetic compass for every ship's heading. The results of investigation are summarized as follows ; 1. The observation and correction of magnetic compass deviation can be done without swinging the ship, of the effect of D coefficient is negligible. 2. The residual deviation curve of the magnetic compass depends on the accuracy of deduced value of ship's multplier($\lambda$). 3. The errors due to the inaccuracy of deduced value of ship's multiplier change in the same way as the B and C coefficient do.

• 한국기계가공학회지
• /
• 제3권1호
• /
• pp.66-71
• /
• 2004

Magnesium alloys have been widely used for many structural components of automobiles and aircraft because of high specific strength and good cast-ability in spite of hexagonal closed-packed crystal structure of pure magnesium. In this study, it is studied about the forming characteristics of press forging of AZ31 magnesium alloy by MSC/MARC in case of material having one boss and MSC/Supeiforge in case of material having multi-boss with heat transfer analysis during deformation at elevated temperature. For these results it is simulated about temperature distribution, strain distribution, and stress distribution of AZ31 Magnesium alloy. During the press forging, foot regions of bosses showed greater temperature rise than other areas of AZ31 sheet. Finally the plastic strain of AZ31 sheet did not remarkably vary with increasing temperature from 373 to 473K, while it significantly increased as the forming temperature increased from 473 to 573K, which is related with the change in micro-structures, such as dynamic re-crystallization occurring during the deformation process.

• 한국마린엔지니어링학회:학술대회논문집
• /
• 한국마린엔지니어링학회 2006년도 전기학술대회논문집
• /
• pp.327-328
• /
• 2006

In generally, under the influence of over-pressure drop, serious problems such as cavitation, choked flow, flashing and vibration has been coming around the tilting disk check valve. A PIV experiment to examine the cause of energy loss has been performed and the improvement configuration of valve seat based on this visualization results is proposed. In the visualization results, flows in the piping system became instability under the influence of the shape of boss. This unstable flows induces sudden pressure drop in the piping system. So, we change the configuration of boss as a streamlined design to be stabilized the flows. A pressure measurement has been performed to know that the influence of the configuration change. In result, the rate of pressure loss reduction is about 22% at the position of No. 2 and 24.2% at the position of No. 6 in comparison with pre-improved shape.

• 한국산림과학회지
• /
• 제98권6호
• /
• pp.690-695
• /
• 2009

본 연구는 산림노동자의 직무만족과 이직의 관계를 도출하는 것이 목적으로 산림노동자의 직무만족과 이직의 관계를 실증분석하기 위하여 영림단원들을 대상으로 설문조사를 실시하였다. 설문조사는 직무만족과 관련된 26개 항목에 대한 만족도와 이직의사를 조사하였다. 직무만족과 관련된 26개 항목에 대해 요인분석을 실시하여 '상사와의 관계', '임금 및 안전', '동료와의 관계','직무자체' 및 '근무시간'의 5가지 요인을 도출하였다. 요인분석으로 도출된 5가지 요인과 이직과의 관계를 분석하기 위해 회귀분석을 실시하였으며 그 결과 '직무자체' 만족만이 이직과 5% 유의수준에서 관련이 있는 것으로 분석되었다.

• 한국CDE학회지
• /
• 제4권3호
• /
• pp.26-31
• /
• 1998

Recent trend of popularity of CAE(Computer Aided Engineering) tools and its availability, partly contributed by significant price reduction of H/W and SW, makes us believe CAE has already established terra firma as de jure tools, enablint the design improvement in the manufacturing am. However, if your jobs are required to be working closely with engineers located in the front line of manufacturing site, CAE is observed far from popularity, still being regarded as exclusive tools for engineers holding advanced degrees. Conventional methodologies depending on knowledge that was accumulated thorough trial and errors, depending primarily on engineering tables and formulas or proprietary know-how, are preferred as the de factor standard under the roof of contemporary development shops. Samsung camera, having stared its business since early 、80, has accumulated enough technological strength to compete in the world market. As today's consumers demand more sophisticated featured-lighter weight, built-in multi zoom and miniature size fitting in the palm-from camera manufacturer, so should Samsung camera respond to ever-delicate consumer's needs with great flexibility. Consequently conventional designers, without sophisticated analytical tools, with encounter solving the critical design factors that have never been treated as seriousness-marginal safety factors induced by reduced size of parts. In the study, CAE results of boss and gears were demonstrated as examples, which confirms the facts that the simple analysis done by front line designers, can bring distinguishable effects on the potential improvements of design and on the consequential influences on the future design process-simulation before actual tooling and productions.

• 한국재난정보학회 논문집
• /
• 제2권1호
• /
• pp.65-80
• /
• 2006

Security and Secretary Service is the man who maintains safe condition of boss', following him during all daily schedule and help the boss display his supreme business abilities, settling various affairs The purpose of this study is to examine the role of Security and Secretary Service. To understand the role of Security and Secretary Service, interviews with Security and Secretary Service's. synthesizing records inquire and interviews with present workers, was analyzed. As results of the study, the open coding of grounded theory was 85 categories, 22 lower categories, and 13 upper categories; 7 roles of Security and Secretary Service types out of 13 upper categories were attained. Based on this, from the axial coding a paradigm model related to categories was produced and selective coding the core category, story line development and type were analyzed. Therefore, Security and Secretary Service plays roles: Office manager, Training manager, Information manager, Customer relations manager, Facilitator, Health manager, and Safety manager. Compared with Office secretary, It is said that Health manager, and Safety manager are distinguishing roles. Through the coding process based on grounded theory. For this, based on the writer's theoretical sensitivity and constant comparative analysis, theses as well as writing in each field, data from serial publications and others, the statements of interview subjects were constantly compared and analyzed. Based on these analyses, this study suggests the following: First, the intimidate sample survey is need. Second, professional educational content during the training process of Security and Secretary Services should be strengthened. Third, to expect a more professional role of Security and Secretary Services. the systematic support will be required.