• 유통과학연구
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• 제17권7호
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• pp.5-13
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• 2019

Purpose - In order for companies to be competitive and adapt to the trend of development, it is important for many airlines to secure outstanding human resources and the need to nurture them. It can be expected that by systematically analyzing and organizing the characteristics and types of competences considering the duties of the airline cabin crew, the personal and organizational capacities of the cabin crew can be defined and presented theoretically. Research Design, Data, and Methodology - This survey was conducted over a seven-month period from February 1 to September 30, 2018 and was designated as a domestic airline flight attendant. Direct visits to Incheon International Airport and Gimpo International Airport were also conducted through an online questionnaire. A total of 515 questionnaires were used for empirical analysis. To verify two hypothesis of this study, a regression analysis and exploratory factor analysis (EFA) were performed using SPSS WIN 26.0. Results - Analysis on the impact of personal capacity of airline cabin crew on job satisfaction showed that technical competence, knowledge capacity and ability capacity, which are sub-factor factors of personal capacity, had a positive effect on job satisfaction. Recovery resilience also plays a positive role in relationships between individual competence and job satisfaction. Conclusions - It has been empirically analyzed that the personal characteristics of the airline crew have a significant effect on flight attendant's job satisfaction. It can be seen that flight attendants tend to perform well beyond what is required in their duties, and that active and confident cabin crew members tend to perform well in the direction of improving their duties, and are also highly satisfied with their duties.

• 한국의사학회지
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• 제31권1호
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• pp.13-22
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• 2018

Understanding the purpose and results of a Korean Envoy's medical bureaucrat (attendant) travel to China. Unlike other Envoy's medical bureaucrats, envoy's trade made profits for those who participated. This article investigates the protocols of a Korean Envoy's medical attendant which include: (1) A prominent family member or high-ranking official does not participate in the Envoy's medical bureaucrat, either himself or his descendants. This denies the general theory that the medicinal material trade helped the economic status of medical officials. (2) Envoy's medical bureaucrat is a high percentage of interpreter bureaucrat in the households of father, mother, and wife. This suggests that the information about the envoy schedule and the benefit of the envoy may have been exposed in advance. This is related to the fact that the interpreter bureaucrat is the center of the envoy trade. (3) In the nineteenth century, envoy's medical bureaucrats were more frequent among close relatives, such as father-son relationship, than in the previous century. This study restored the lineage and purpose to the medical bureaucrat's travel to China, and provides a list of Envoy's medical bureaucrat through historical data, and analyzed the household and previous office. In this regard, it can be seen that some households, which are not dominant medical bureaucracies, have pursued profit through medicinal material trade. However, it is difficult to generalize to the whole of the medical bureaucracy.

• BMB Reports
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• 제35권6호
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• pp.568-575
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• 2002

An $\alpha$-amylase (EC 3.2.1.1) was purified that catalyses the production of a high level of maltose from starch without the attendant production of glucose. The enzyme was produced extracellularly by thermophilic Streptomyces sp. that was isolated from Thailand's soil. Purification was achieved by alcohol precipiation, DEAE-Cellulose, and Gel filtration chromatographies. The purified enzyme exhibited maximum activity at pH 6-7 and $60^{\circ}C$. It had a relative molecular mass of 45 kDa, as determined by SDS-PAGE. The hydrolysis products from starch had $\alpha$-anomeric forms, as determined by $^1H$-NMR. This maltose-forming $\alpha$-amylase completely hydrolyzed the soluble starch to produce a high level of maltose, representing up to 90%. It hydrolyzed maltotetrose and maltotriose to primarily produce maltose (82% and 62%, repectively) without the attendant production of glucose. The high maltose level as a final end-product from starch and maltooligosaccharides, and the unique action pattern of this enzyme, indicate an unusual maltose-forming system. After the addition of the enzyme in the bread-baking process, the bread's volume increased and kept its softness longer than when the bread had no enzyme.

• 한국통신학회논문지
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• 제30권10B호
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• pp.669-675
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• 2005

이동통신산업에서 단말기보조금의 효과는 이동통신서비스와 단말기 시장의 활성화와 관련 기술개발의 촉진 등과 같은 긍정적인 효과와 서비스 요금의 상승, 과도한 자원의 낭비, 유효경쟁에 미치는 악영향 등의 부정적인 효과를 동시에 가진다. 이러한 이유로 단말기보조금에 시행에 관한 수많은 논란이 계속되고 있고, 특히 새로운 형태의 이동통신서비스의 시작을 앞두고 있는 근래에는 단말기보조금의 재시행을 두고 그 논란이 더욱 증대되고 있다. 이를 반영하듯 그 동안 많은 연구들이 단말기보조금이 관련 산업 및 사회후생에 미치는 효과를 분석하여 왔다. 그러나 이러한 연구들의 대부분은 단말기보조금의 영향 요소를 파악하고 이에 대한 정성적인 분석에 중점을 두고 있었기 때문에 단말기보조금의 효과에 대한 정량적인 연구를 위한 노력은 지극히 부족한 실정이다. 본 연구에서는 단말기보조금 시행의 직접적인 영향을 받는 소비자 수요증가로 인한 정의 효과와 지급되는 보조금 보전을 위한 이용요금의 인상 등으로 인한 부의 효과를 계량적으로 비교함으로써 과연 단말기 보조금의 직접적인 효과가 소비자 편익에 어느 정도의 영향을 주고 있는지를 분석하여 현 단계에서 그 효과가 긍정적이라고 기대하기 어렵다는 결론을 얻었다.

• 한국철도학회논문집
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• 제12권5호
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• pp.649-655
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• 2009

고속철도기술 4대강국 진입을 목표로 추진 중인 차세대 고속철도 기술개발사업에서 승객 및 승무원의 객실 내에서의 안전과 편의성을 제공하기 위해 IT 및 스마트센서기술을 적용하는 연구가 5년에 걸쳐 진행 중에 있다. 본 논문에서는 첫해에 24개의 적용대상 기술들을 발굴하고 그 중 가장 적절한 적용기술을 선별하기위한 과정 중에서 선정의 객관성 확보를 위해 승객, 승무원, 철도공사직원, 엔지니어 등 관계자들을 대상으로 설문조사를 실시한 내용을 정리 하였다. 본 연구의 결과는 개인 LCD 모니터를 통한 정보제공, 긴급상황 및 예약알림, 객실 내 개인좌석에서의 인터넷, 승무원과의 원격대화, 객실 내 공기질 감지, 객실 내 이상음 감지, 화장실 내 응급상황 감지의 7가지 적용기술들이 최종적으로 선정되는데 활용되었다.

• 상하수도학회지
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• 제13권1호
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• pp.81-94
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• 1999

This study aims at a proposal of the plan that can improve raw water quality by an experimental study using influent water of Nak-dong river, which has been used as raw water for drinking in U-city, through the establishment of the submerged biofilter process PILOT PLANT of media packing channel method. From the analysis of removal efficiency for each water quality item of the collected sample, following results are obtained. First of all, the removal rate of suspended material, BOD, COD, T-N, TOC, turbidity, and $NH_3$ -N appear 82%, 78%, 42%, 15%, 57%, 43%, 54%, and 55% respectively and it is known that the submerged biofilter process of media packing channel method takes effects on water quality improvement from the above analysis results of water treatment efficiency. And the analyzed results for water temperature, residence time, and activities of microorganism, which can be the factors affect on water quality improvement, are as follows. 1) The removal rate variation of SS, BOD, and COD attendant on water temperature change is examined and it is known that the removal rate increases at $13^{\circ}C$ or above. 2) The removal rate of SS, BOD, and COD attendant on residence time is most active in the range of 0~18hr, 0~1.8hr, 0~2.7hr respectively, so it is found that the removal rate becomes smaller after 2.7hr. 3) From the examination of microorganism activity with the abundance of normal bacteria, it is found that the floating bacteria decrease as the flow distance from raw water inflow point of PILOT PLANT increases, and the adhesive bacteria have no concern with the flow distance. And it its known that the biomass of fine algae decreases as the flow distance from the raw water inflow point of PILOT PLANT increases from the examination with Chl-a.

• 지식경영연구
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• 제18권2호
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• pp.103-127
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• 2017

This study examines the effects of failed airline services on the consumers' psychological process and their behavioral responses. Having different classifications from the previous studies, this study focuses on dividing important factors of airline services into search attributes(e.g. sale and procedure services, services concerning flight attendant, in-flight services) and experience attributes(e.g. flight services, collateral services). Using structural equation modeling, this study shows that the failure of service factors of the experience attributes provokes the feeling of disappointment with mediation effect of external attribution while the failure of service factors of search attributes provokes the feeling of regret with mediation effect of internal attribution. Finally, disappointment leads to consumers' complaint behavior while regret leads to consumers' switching behavior. Unlike previous studies, we show that when a service failure occurs, depending on each attribute, consumers feel negative emotions of disappointment or regret through different attribution processes and finally show different behavioral responses with an empirical analysis.

• 한국항공운항학회지
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• 제20권4호
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• pp.115-125
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• 2012

The purpose of this study is to investigate the relationship between organizational culture(constructive and defensive culture) and emotional labor along with the social supports (supervisor support, colleague support). Using data obtained from a survey of 419 flight attendants of a major airline company in south Korea. The results are as follows: Organizational culture had a significant effect on emotional labor. At this point, colleague support mediated the relationship between constructive culture and emotional labor. In addition, supervisor support and colleague support had a mediating role between defensive culture and emotional labor. This result concludes that flight attendants positively accept the essential manuals and safety regulations in the special working condition with a unified team service. Furthermore, the results show that social supports are an important job resource for flight attendants helping them reach their work-related goals.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2006년도 추계학술대회논문집
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• pp.212-216
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• 2006

The purpose of this study is to obtain an effective enclosing method for noise reduction of press machine operating in a manufacturing company located in Korea. Noise level of the machine is about $90{\sim}105dB$ which is higher than legal standards by industrial safety and health law. This study has predicted the level of noise reduction according to a step by step prevention plan by considering the characteristics of the cause of noise, the permitted limit of noise levels, problems and economical efficiency attendant upon the noise prevention measures. The predicted level of noise at the plant in accordance with the first step is $71.5{\sim}89.5dB(A)$, and can satisfy the permitted limit of noise in a time period of the day. Based on these results, enclosing method adequate for the selected plant's noise characteristics were suggested.

• 영어어문교육
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• 제9권spc호
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• pp.1-17
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• 2003

This paper aims to propose that Problem-Based Learning (PBL) is a method that can help meet the conditions in language learning and instruction. PBL was first used in medical education, where learners engaged in problem-solving activities that reflect the demands of real-life professional practice, thus promoting critical thinking in the content domain. The paper proposes that by applying PBL in language learning and creating situations in which learners work collaboratively on problems, the learners benefit in two respects: (i) they have the opportunity to practise the kind of thinking skills and problem-solving strategies needed in real life, and (ii) they engage in purposeful language activity with others through discussion and negotiation. The paper first provides a theoretical rationale far the use of PBL in language learning and suggests attendant changes in the role of a language instructor in a PBL context. The paper then presents an outline of the stages and components needed in designing an online PBL Unit far use in an undergraduate language class.