• Title/Summary/Keyword: operational performance

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중국군의 해양작전능력과 한국군의 과제 (PRC Maritime Operational Capability and the Task for the ROK Military)

  • 김민석
    • Strategy21
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    • 통권33호
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    • pp.65-112
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    • 2014
  • Recent trends show that the PRC has stepped aside its "army-centered approach" and placed greater emphasis on its Navy and Air Force for a wider range of operations, thereby reducing its ground force and harnessing its economic power and military technology into naval development. A quantitative growth of the PLA Navy itself is no surprise as this is not a recent phenomenon. Now is the time to pay closer attention to the level of PRC naval force's performance and the extent of its warfighting capacity in the maritime domain. It is also worth asking what China can do with its widening naval power foundation. In short, it is time to delve into several possible scenarios I which the PRC poses a real threat. With this in mind, in Section Two the paper seeks to observe the construction progress of PRC's naval power and its future prospects up to the year 2020, and categorize time frame according to its major force improvement trends. By analyzing qualitative improvements made over time, such as the scale of investment and the number of ships compared to increase in displacement (tonnage), this paper attempts to identify salient features in the construction of naval power. Chapter Three sets out performance evaluation on each type of PRC naval ships as well as capabilities of the Navy, Air Force, the Second Artillery (i.e., strategic missile forces) and satellites that could support maritime warfare. Finall, the concluding chapter estimates the PRC's maritime warfighting capability as anticipated in respective conflict scenarios, and considers its impact on the Korean Peninsula and proposes the directions ROK should steer in response. First of all, since the 1980s the PRC navy has undergone transitions as the focus of its military strategic outlook shifted from ground warfare to maritime warfare, and within 30 years of its effort to construct naval power while greatly reducing the size of its ground forces, the PRC has succeeded in building its naval power next to the U.S.'s in the world in terms of number, with acquisition of an aircraft carrier, Chinese-version of the Aegis, submarines and so on. The PRC also enjoys great potentials to qualitatively develop its forces such as indigenous aircraft carriers, next-generation strategic submarines, next-generation destroyers and so forth, which is possible because the PRC has accumulated its independent production capabilities in the process of its 30-year-long efforts. Secondly, one could argue that ROK still has its chances of coping with the PRC in naval power since, despite its continuous efforts, many estimate that the PRC naval force is roughly ten or more years behind that of superpowers such as the U.S., on areas including radar detection capability, EW capability, C4I and data-link systems, doctrines on force employment as well as tactics, and such gap cannot be easily overcome. The most probable scenarios involving the PRC in sea areas surrounding the Korean Peninsula are: first, upon the outbreak of war in the peninsula, the PRC may pursue military intervention through sea, thereby undermining efforts of the ROK-U.S. combined operations; second, ROK-PRC or PRC-Japan conflicts over maritime jurisdiction or ownership over the Senkaku/Diaoyu islands could inflict damage to ROK territorial sovereignty or economic gains. The PRC would likely attempt to resolve the conflict employing blitzkrieg tactics before U.S. forces arrive on the scene, while at the same time delaying and denying access of the incoming U.S. forces. If this proves unattainable, the PRC could take a course of action adopting "long-term attrition warfare," thus weakening its enemy's sustainability. All in all, thiss paper makes three proposals on how the ROK should respond. First, modern warfare as well as the emergent future warfare demonstrates that the center stage of battle is no longer the domestic territory, but rather further away into the sea and space. In this respect, the ROKN should take advantage of the distinct feature of battle space on the peninsula, which is surrounded by the seas, and obtain capabilities to intercept more than 50 percent of the enemy's ballistic missiles, including those of North Korea. In tandem with this capacity, employment of a large scale of UAV/F Carrier for Kill Chain operations should enhance effectiveness. This is because conditions are more favorable to defend from sea, on matters concerning accuracy rates against enemy targets, minimized threat of friendly damage, and cost effectiveness. Second, to maintain readiness for a North Korean crisis where timely deployment of US forces is not possible, the ROKN ought to obtain capabilities to hold the enemy attack at bay while deterring PRC naval intervention. It is also argued that ROKN should strengthen its power so as to protect national interests in the seas surrounding the peninsula without support from the USN, should ROK-PRC or ROK-Japan conflict arise concerning maritime jurisprudence. Third, the ROK should fortify infrastructures for independent construction of naval power and expand its R&D efforts, and for this purpose, the ROK should make the most of the advantages stemming from the ROK-U.S. alliance inducing active support from the United States. The rationale behind this argument is that while it is strategically effective to rely on alliance or jump on the bandwagon, the ultimate goal is always to acquire an independent response capability as much as possible.

군 급식소의 이용실태 및 만족도 조사 (Measuring Attitudes and Satisfaction Level towards Military Foodservices)

  • 강보경;이영은
    • 한국식품영양과학회지
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    • 제40권7호
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    • pp.1032-1042
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    • 2011
  • 본 연구는 군장병과 급양관을 대상으로 군 급식에 대한 이용실태, 인식 및 급식품질에 대한 중요도 및 수행도와 전반적인 만족도를 분석함으로써 향후 군 급식의 질 향상에 기초가 되는 자료를 제공하고자 하였다. 조사대상 군장병의 계급은 일병 32.6%, 상병 116명 29.3%, 병장 22.5%이었고, 연령은 20~25세 미만이 96.0%로 가장 많았으며 학력은 대부분(84.6%)이 대학 재학 중인 것으로 나타났다. 조사대상 급양관 중 남성이 92.3%, 여성은 1명 7.7%이었고 조사대상군 급식소는 직영으로 운영되고 있었으며, 조사대상 급양관은 영양사 자격증을 소유하고 있지 않았다. 식단계획은 지역 급식회의를 통해 메뉴선정이 되었고 군급식소의 배식방법은 부분적 자율배식을 실시하는 곳이 53.8%, 자율배식을 실시하는 곳이 38.5%이었으며, 메뉴작성 주기는 한 달에 1번작성하는 곳이 69.2%이었다. 조사대상 군장병의 식사시간은 10~20분 이내가 58.3%로 나타났고, 잔반이 많은 끼니는 아침(62.4%)이, 많이 남기는 잔반으로는 국(66.9%)과 반찬(20.2%)으로 나타났다. 급양관 대상 군 급식 운영에 대한 의견 조사 결과 급식 운영 시 어려운 사항으로 급식시설의 부족 및 노후화(28.6%)가 가장 높은 응답률이었고, 취사병수의 부족(14.3%), 숙달된 취사병 부족(10.7%) 등이 있었다. 취사병관련 개선사항에 대해 작업량에 적절한 취사병 수의 배치(46.2%)가 가장 높은 응답률이었고 작업 활동의 능률성향상(30.8%)과 취사병의 청결한 복장 및 외모(23.1%) 등이 있었다. 군장병의 급식의 질 향상을 위한 고려사항으로는 음식의 맛이 40.6%, 배식량 증가가 30.4%, 위생상태 개선 13.6% 등이 요구되는 것으로 나타났다. 군장병이 군 급식으로 선호하는 조리법은 볶음류(45.7%)와 튀김류(25.8%)였으며, 선호하는 식재료의 종류로는 육류(78.5%)가 가장 높은 응답률이었다. 식단에 대한 희망사항으로는 양식메뉴의 증가(25.7%), 한식메뉴의 증가(21.5%)로 나타나 식단메뉴의 다양화를 요구하는 것으로 나타났다. 군 급식의 39개 속성의 품질특성과 이를 구분한 5개 영역으로 군 급식에서 제공되는 급식의 품질특성에 대한 중요도와 수행도를 평가한 결과 속성과 영역 모두에서 중요도가 수행도보다 높게 평가되어 모든 품질에 대해 개선이 요구되는 것으로 나타났다. 중요도 점수가 가장 높은 속성은 위생영역의 음식위생(평균 4.59점)이었고, 음식영역의 '음식의 외관'이 평균 3.70점으로 가장 낮았다. 수행도 점수가 가장 높은 속성은 시설영역의 '식단의 사전 공지'(평균 4.09점)이었고, 메뉴영역의 '다양한 메뉴'가 평균 3.28점으로 가장 낮았다. 또한 '음식의 신선도', '음식의 간', '냉 난방의 적절성', '음식의 맛', '환기'로 중요하다고 판단되지만 잘 수행되지 않는 것으로 나타났다. 전반적인 만족도는 평균 3.43점(5점 만점)으로 보통 수준의 만족도 점수를 나타냈다. 따라서 음식의 맛 개선, 메뉴관리의 체계화, 위생관리 향상 등을 통한 군 급식의 질적 향상을 위해 전문적인 지식과 자격을 갖춘 영양관리직 군무원의 인력배치가 요구된다. 또한, 식단의 조리법을 다양화하고 음식의 맛 향상과 조리시간 단축을 위해 급식 시설부족 및 노후화의 개선이 요구되며, 중요하게 생각하지만 군대 급식소에 의해 잘 수행되지 않는 것으로 나타나고 전반적인 만족도에 영향을 미치는 '음식의 맛' 속성 질적 개선을 위해 식단의 질적 개선이 요구된다. 또한 군 급식비는 국방부 전체 예산의 4.3%로 타 예산 항목대비 감액 편성되고 있으나 군장병의 기호도를 반영한 영양적으로 균형 있는 급식제공을 위해서는 군장병의 급식 재원의 확대가 필요할 것으로 판단된다.

정보서비스품질이 고객로열티에 미치는 영향에 관한 연구: 고객관계관리 관점 (The Effect of Information Service Quality on Customer Loyalty: A Customer Relationship Management Perspective)

  • 김형수;김승하;김영걸
    • Asia pacific journal of information systems
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    • 제18권1호
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    • pp.1-23
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    • 2008
  • As managing customer relationship gets more important, companies are strengthening information service using multi-channels to their customers as a part of their customer relationship management (CRM) initiatives. It means companies are now accepting such information services not as simple information -delivering tools, but as strategic initiatives for acquiring and maintaining customer loyalty. In this paper, we attempt to validate whether or not such various information services would impact on organizational performance in terms of CRM strategy. More specifically, our research objective is to answer the next three questions: first, how to construct the instruments to measure not information quality but information service quality?; second, which attributes of information service quality can influence corporate image and customer loyalty?; finally, does each information service type have unique characteristics compared with others in terms of influencing corporate image and customer loyalty? With respect to providing answers to those questions, the previous studies had been limited in that those studies failed to consider the variety of types of information service or restricted the quality of information service to information quality. An appropriate research model answering the above questions should consider the fact that most companies are utilizing multi channels for their information services, and include the recent strategic information service such as customer online community. Moreover, since corporate information service could be regarded as a type of products or services delivered to customer, it is necessary to adopt the criteria for assessing customer's perceived value when to measure the quality of information service. Therefore, considering both multi-channels and multi-traits may enable us to tell the detailed causal routes showing which quality attributes of which information service would affect corporate image and customer loyalty. As information service channels, we include not only homepage and DM (direct mail), which are the most frequently applied information service channels, but also online community, which is getting more strategic importance in recent years. With respect to information service quality, we abstract information quality, convenience of information service, and timeliness of information service through a wide range of relevant literature reviews. As our dependant variables, we consider corporate image and customer loyalty that both of them are the critical determinants of organizational performance, and also attempt to grasp the relationship between the two constructs. We conducted a huge online survey at the homepage of one of representative dairy companies in Korea, and gathered 367 valid samples from 407 customers. The reliability and validity of our measurements were tested by using Cronbach's alpha coefficient and principal factor analysis respectively, and seven hypotheses were tested through performing correlation test and multiple regression analysis. The results from data analysis demonstrated that timeliness and convenience of homepage have positive effects on both corporate image and customer loyalty. In terms of DM, its' information quality was represented to influence both corporate image and customer loyalty, but we found its' convenience have a positive effect only on corporate image. With respect to online community, we found its timeliness contribute significantly both to corporate image and customer loyalty. Finally, as we expected, corporate image was revealed to provide a great influence to customer loyalty. This paper provides several academic and practical implications. Firstly, we think our research reinforces CRM literatures by developing the instruments for measuring information service quality. The previous relevant studies have mainly depended on the measurements of information quality or service quality which were developed independently. Secondly, the fact that we conducted our research in a real situation may enable academics and practitioners to understand the effects of information services more clearly. Finally, since our study involved three different types of information service which are most frequently applied in recent years, the results from our study might provide operational guidelines to the companies that are delivering their customers information by multi-channel. In other words, since we found that, in terms of customer loyalty, the key areas would be different from each other according to the types of information services, our analysis would help to make decisions such as selecting strengthening points or allocating resources by information service channels.

참여자관점에서 공급사슬관리 시스템의 성공에 영향을 미치는 요인에 관한 실증연구 (An Empirical Study on the Determinants of Supply Chain Management Systems Success from Vendor's Perspective)

  • 강성배;문태수;정윤
    • Asia pacific journal of information systems
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    • 제20권3호
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    • pp.139-166
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    • 2010
  • The supply chain management (SCM) systems have emerged as strong managerial tools for manufacturing firms in enhancing competitive strength. Despite of large investments in the SCM systems, many companies are not fully realizing the promised benefits from the systems. A review of literature on adoption, implementation and success factor of IOS (inter-organization systems), EDI (electronic data interchange) systems, shows that this issue has been examined from multiple theoretic perspectives. And many researchers have attempted to identify the factors which influence the success of system implementation. However, the existing studies have two drawbacks in revealing the determinants of systems implementation success. First, previous researches raise questions as to the appropriateness of research subjects selected. Most SCM systems are operating in the form of private industrial networks, where the participants of the systems consist of two distinct groups: focus companies and vendors. The focus companies are the primary actors in developing and operating the systems, while vendors are passive participants which are connected to the system in order to supply raw materials and parts to the focus companies. Under the circumstance, there are three ways in selecting the research subjects; focus companies only, vendors only, or two parties grouped together. It is hard to find researches that use the focus companies exclusively as the subjects probably due to the insufficient sample size for statistic analysis. Most researches have been conducted using the data collected from both groups. We argue that the SCM success factors cannot be correctly indentified in this case. The focus companies and the vendors are in different positions in many areas regarding the system implementation: firm size, managerial resources, bargaining power, organizational maturity, and etc. There are no obvious reasons to believe that the success factors of the two groups are identical. Grouping the two groups also raises questions on measuring the system success. The benefits from utilizing the systems may not be commonly distributed to the two groups. One group's benefits might be realized at the expenses of the other group considering the situation where vendors participating in SCM systems are under continuous pressures from the focus companies with respect to prices, quality, and delivery time. Therefore, by combining the system outcomes of both groups we cannot measure the system benefits obtained by each group correctly. Second, the measures of system success adopted in the previous researches have shortcoming in measuring the SCM success. User satisfaction, system utilization, and user attitudes toward the systems are most commonly used success measures in the existing studies. These measures have been developed as proxy variables in the studies of decision support systems (DSS) where the contribution of the systems to the organization performance is very difficult to measure. Unlike the DSS, the SCM systems have more specific goals, such as cost saving, inventory reduction, quality improvement, rapid time, and higher customer service. We maintain that more specific measures can be developed instead of proxy variables in order to measure the system benefits correctly. The purpose of this study is to find the determinants of SCM systems success in the perspective of vendor companies. In developing the research model, we have focused on selecting the success factors appropriate for the vendors through reviewing past researches and on developing more accurate success measures. The variables can be classified into following: technological, organizational, and environmental factors on the basis of TOE (Technology-Organization-Environment) framework. The model consists of three independent variables (competition intensity, top management support, and information system maturity), one mediating variable (collaboration), one moderating variable (government support), and a dependent variable (system success). The systems success measures have been developed to reflect the operational benefits of the SCM systems; improvement in planning and analysis capabilities, faster throughput, cost reduction, task integration, and improved product and customer service. The model has been validated using the survey data collected from 122 vendors participating in the SCM systems in Korea. To test for mediation, one should estimate the hierarchical regression analysis on the collaboration. And moderating effect analysis should estimate the moderated multiple regression, examines the effect of the government support. The result shows that information system maturity and top management support are the most important determinants of SCM system success. Supply chain technologies that standardize data formats and enhance information sharing may be adopted by supply chain leader organization because of the influence of focal company in the private industrial networks in order to streamline transactions and improve inter-organization communication. Specially, the need to develop and sustain an information system maturity will provide the focus and purpose to successfully overcome information system obstacles and resistance to innovation diffusion within the supply chain network organization. The support of top management will help focus efforts toward the realization of inter-organizational benefits and lend credibility to functional managers responsible for its implementation. The active involvement, vision, and direction of high level executives provide the impetus needed to sustain the implementation of SCM. The quality of collaboration relationships also is positively related to outcome variable. Collaboration variable is found to have a mediation effect between on influencing factors and implementation success. Higher levels of inter-organizational collaboration behaviors such as shared planning and flexibility in coordinating activities were found to be strongly linked to the vendors trust in the supply chain network. Government support moderates the effect of the IS maturity, competitive intensity, top management support on collaboration and implementation success of SCM. In general, the vendor companies face substantially greater risks in SCM implementation than the larger companies do because of severe constraints on financial and human resources and limited education on SCM systems. Besides resources, Vendors generally lack computer experience and do not have sufficient internal SCM expertise. For these reasons, government supports may establish requirements for firms doing business with the government or provide incentives to adopt, implementation SCM or practices. Government support provides significant improvements in implementation success of SCM when IS maturity, competitive intensity, top management support and collaboration are low. The environmental characteristic of competition intensity has no direct effect on vendor perspective of SCM system success. But, vendors facing above average competition intensity will have a greater need for changing technology. This suggests that companies trying to implement SCM systems should set up compatible supply chain networks and a high-quality collaboration relationship for implementation and performance.

RFID 구매고객의 구매 의사결정과 수용에 대한 탐색적 연구 (An Exploratory Study of Purchasing Decision Making and Adoption on the RFID Purchasing Customer)

  • 서필수;장장이;심경수
    • 벤처창업연구
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    • 제3권4호
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    • pp.89-116
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    • 2008
  • 최근 기업은 유비쿼터스 컴퓨팅에 핵심 기술이자 신기술 적용 제품인 RFID를 도입하여 재고관리, 공정효율성, 비용절감, 제품의 신뢰성 등을 통해 경영활동의 효율성과 고객 만족도를 향상시키고자 제품을 도입하고 있다. 그러나 신제품(솔루션) 도입 시 기업은 많은 위험요소를 안고 있다. 따라서 본 연구는 RFID 구매자들에게 존재하는 구매 위험, 공급자의 속성과 정보, 구매의사결정 단계 및 구매 행동 등 이론적 배경을 근거로 연구문제를 돌출하고 이를 분석하여 시사점을 제시함으로서 RFID 공급사 및 산업마케터들의 마케팅전략을 수립에 도움이 되고자 시작되었다. 연구 결과, (1)신규 구매의 경우 제품의 신뢰성, 기술명세의 정확성, 단순 재구매의 경우 가격의 적절성이 중요한 속성으로 나타났고, (2)정보원천은 두(신규 구매와 단순 재구매) 경우 모두 제품 성능 테스트결과, 조직 내의 기술자, 그리고 타사 구매자들의 의견 및 견본확인 등을 통해 정보를 얻고, (3)구매위험지각 정도는 신규구매의 경우에는 기능상의 문제 발생 가능성과 같은 성과 위험, 수리 및 투자비용 상의 손실 가능성과 같은 재정적 위험 등, 단순재구매의 경우에는 보다 나은 제품 구매에 대한 기회 손실과 같은 미래 기회 손실 위험 등이 나타났고, (4)구매센터의 역할은 신규구매의 경우에는 사용부서, 기획부서 구매부서 순이고, 단순재구매의 경우에는 사용부서, 구매부서 순이며, (5)구매의사결정단계별 영향력은 두 경우 모두 단계별 차이를 보이고 있으나 경영층 보다 사용부서, 기획부서, 구매부서의 비중이 높게 나타났다.

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다국적기업 한국자회사의 의사결정 자율성에 영향을 미치는 요인에 관한 연구 -반도체산업 관련기업체를 중심으로- (A Study on the Attributes determining the Extent of Autonomy in Decision Making for Korean Subsidiaries of Multinational Corporations - Focused on Semiconductor Industry Related Companies -)

  • 정낙경;김홍
    • 벤처창업연구
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    • 제3권4호
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    • pp.1-41
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    • 2008
  • 본 연구는 다국적 기업 한국자회사의 의사결정 자율성에 영향을 미치는 요인에 관하여 알아보았으며, 다국적 기업의 국제경영전략 및 유형에 따른 의사결정 자율성에 차이가 있음을 확인하였다. 본 연구의 결과, 한국자회사의 시장 환경 불확실성은 정부환경, 경쟁 환경, 수요환경 및 공급환경 불확실성으로 구분되었고, 내부자원 특성은 생산능력, 재무능력, 마케팅능력 및 인사관리능력의 독립성으로, 경영성과는 총매출액 및 당기순이익, 시장점유율의 증가로 구분되었다. 정부환경과 경쟁 환경 불확실성, 재무능력과 마케팅능력의 독립성은 한국자회사의 의사결정 자율성에 부분적으로 영향을 미쳤고, 생산능력과 인사관리능력의 독립성은 모든 분야의 의사결정 자율성에 영향을 미치고 있었다. 그리고 경영성과에서 총매출액 및 당기순이익, 시장점유율의 증가는 부분적으로 한국자회사의 의사결정 자율성에 영향을 미치고 있었다. 그리고 다국적 기업의 유형이 본국 및 세계중심주의보다 현지 국 중심주의에서 한국자회사의 의사결정 자율성이 더 높았다. 이러한 연구 결과를 통하여 본 연구는 한국자회사에서 모회사로부터 의사결정 자율성을 높일 수 있는 경영전략 수립에 대한 시사점을 제공하였다.

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탈곡기의 급동 속도가 도정 손실에 미치는 영향 (Effect of Thresher Drum-Speed on the Quality of the Milled Rice)

  • 정창주;고학균;이종호;강화석
    • Journal of Biosystems Engineering
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    • 제4권2호
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    • pp.10-24
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    • 1979
  • It is understood that drum speed of threshers and the moisture content of paddy grains to be threshed, respectively, have a signific:mt effect upon rice recoveries. Threshing under an increased drum speed would give a high performance rate, which is the general practice in custom work threshing in association with the use of semiauto-t hreshers. In the connection, however, it may result in the promotion of grain cracks and brokens of the rice product after milling. No reference or determination for an opti mum drum speed of the thresher is made available for various grain moisture contents at the time of the threshing operation and for different rice varieties especially for the Tongil rice varieties. This study was Conducted to find out and determine effects of the drum speeds on grain losses. The grain loss was quantified in terms of recovery rates of rice grains after treatments. Samples of each of all treatments were taken from the grain sampling plate placed in the grain conveyor of threshers. The grain sample plate was specially provided for this experiment. The brown-rice, milling, and head-rice recJveries were tes ted in the laboratory mill, respectively. Two rice varieties, Akibare and Suweon 251, each with five levels of different moist\ulcornerure contents at harvest and six levels of different drum speeds of threshers, were selected and used for treatments in this experiment. Two conditions of materials were tested in the thresher. One condition was to thresh the experimental material immediately after cutting, referred to as the wet-material thr eshing in this study. The other was to thresh the experimental :material, dried to contain about 15-16 percent of the grain moisture under the shocking operation. This is referred to as the dry-material threshing in this study. In additioon, field measurements for the grain moistures and drum-sdeeds under actual operation practices of the traditional field threshing, were conducted with a view to comparing with results of the experimental treatments. The results of the study may be summarized as follows: 1. For threshing treatments of Japonica-type rice variety (Akibare) , the effect of drum speeds and levels of grain moisture at cutting upon brown-rice, milling, and head-rice recoveries were found statistically significant. No significant difference in these recovery rates was noticed regardless of whether the material was threshed right after cutting or after drying by the shocking operation. 2. For the Tongil-sister rice variety(Suweon 251), milling recovery for the varied drum-speed and the grain~moisture level at cutting was found statististically significant. Th milling recovery was much significant when associated with the wet-material thres\ulcornerhing compared to the dry-material threshing. 3. The optimum peripheral velocity to be maintained at the edge of teeth on the thr\ulcorneresher drum was determined and may be recommanded as that of about 12 to 13 meters per second in view of the maximum recovery rate of the milled rice. 4. The effect of the drum speed on the qualitative loss of the milled rice was much greater in the case of the Tongil variety than Japonica. This effect was also greater by the wet-material threshing than by the dry-material threshing. Therefore, to apply the wet-material threshing operation for the Tongil variety, in particular, it should be very important to introduce the kind of threshing technology which would maintain the drum speed at optimum. 5. A field survey for the actual drum speed of threshing operations for 50 threshers indicated that average peripheral velccity was 12.76m/sec., and that the range was from 10.50 to 14.90m/sec. Approximately, more than 30% of the experimented and measured threshers were being operated at speeds which exceeded the optimum speed determined and assessed in this study. Accordingly, it should be highly desirable and important to take counter-measures against these threshing practices of operational overspeed.

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탈곡기의 급동 속도가 도정 손실에 미치는 영향 (Effect of Thresher Drum-Speed on the Quality of the Milled Rice)

  • 정창주;고학균;이종호;강화석
    • Journal of Biosystems Engineering
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    • 제4권2호
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    • pp.9-9
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    • 1979
  • It is understood that drum speed of threshers and the moisture content of paddy grains to be threshed, respectively, have a signific:mt effect upon rice recoveries. Threshing under an increased drum speed would give a high performance rate, which is the general practice in custom work threshing in association with the use of semiauto-t hreshers. In the connection, however, it may result in the promotion of grain cracks and brokens of the rice product after milling. No reference or determination for an opti mum drum speed of the thresher is made available for various grain moisture contents at the time of the threshing operation and for different rice varieties especially for the Tongil rice varieties. This study was Conducted to find out and determine effects of the drum speeds on grain losses. The grain loss was quantified in terms of recovery rates of rice grains after treatments. Samples of each of all treatments were taken from the grain sampling plate placed in the grain conveyor of threshers. The grain sample plate was specially provided for this experiment. The brown-rice, milling, and head-rice recJveries were tes ted in the laboratory mill, respectively. Two rice varieties, Akibare and Suweon 251, each with five levels of different moist?ure contents at harvest and six levels of different drum speeds of threshers, were selected and used for treatments in this experiment. Two conditions of materials were tested in the thresher. One condition was to thresh the experimental material immediately after cutting, referred to as the wet-material thr eshing in this study. The other was to thresh the experimental :material, dried to contain about 15-16 percent of the grain moisture under the shocking operation. This is referred to as the dry-material threshing in this study. In additioon, field measurements for the grain moistures and drum-sdeeds under actual operation practices of the traditional field threshing, were conducted with a view to comparing with results of the experimental treatments. The results of the study may be summarized as follows: 1. For threshing treatments of Japonica-type rice variety (Akibare) , the effect of drum speeds and levels of grain moisture at cutting upon brown-rice, milling, and head-rice recoveries were found statistically significant. No significant difference in these recovery rates was noticed regardless of whether the material was threshed right after cutting or after drying by the shocking operation. 2. For the Tongil-sister rice variety(Suweon 251), milling recovery for the varied drum-speed and the grain~moisture level at cutting was found statististically significant. Th milling recovery was much significant when associated with the wet-material thres?hing compared to the dry-material threshing. 3. The optimum peripheral velocity to be maintained at the edge of teeth on the thr?esher drum was determined and may be recommanded as that of about 12 to 13 meters per second in view of the maximum recovery rate of the milled rice. 4. The effect of the drum speed on the qualitative loss of the milled rice was much greater in the case of the Tongil variety than Japonica. This effect was also greater by the wet-material threshing than by the dry-material threshing. Therefore, to apply the wet-material threshing operation for the Tongil variety, in particular, it should be very important to introduce the kind of threshing technology which would maintain the drum speed at optimum. 5. A field survey for the actual drum speed of threshing operations for 50 threshers indicated that average peripheral velccity was 12.76m/sec., and that the range was from 10.50 to 14.90m/sec. Approximately, more than 30% of the experimented and measured threshers were being operated at speeds which exceeded the optimum speed determined and assessed in this study. Accordingly, it should be highly desirable and important to take counter-measures against these threshing practices of operational overspeed.

팀제가 팀 임파워먼트에 미치는 영향에 관한 연구;KBS 팀제를 중심으로 (The Empirical Study on the Effects of the Team Empowerment caused by the Team-Based Organizational Structure in KBS)

  • 안동수;김홍
    • 한국벤처창업학회:학술대회논문집
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    • 한국벤처창업학회 2006년 춘계학술발표회
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    • pp.167-201
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    • 2006
  • 우리나라 기업들은 급변하는 환경을 극복하고 조직의 성과를 높이기 위하여 수직조직을 팀조직으로 전환하고 있다. 그러나 현행 팀제는 조직의 형식만 바꾸었을 뿐 실상은 과거 수직조직과 다름없다는 평가가 많다. 이러한 결과는 팀제의 성공에 필요한 핵심변수인 임파워먼트에 대한 검토와 실행이 되지 않고 있기 때문이다. 본 연구는 KBS 팀제에서 구성원들이 임파워먼트 되는데 걸림돌이 되는 여건이나 심리적 상태들을 파악하여 조직의 임파워먼트를 어떻게 실현할 것인가에 대한 정책적 대안을 제시하고자 한다. 횡단적 연구를 위하여 국내외 문헌조사를 하고 KBS 내에서 회수한 설문결과와 개인면담, 그리고 관찰의견을 종합하여 검토하였다. 설문지는 약 1,200부를 배포해 474부가 수거되어 이 중 460부를 SPSS 12.0 프로그램을 이용하여 분석하였다. 종단적 연구를 위하여 ‘KBS 팀제에 관한 사원의식 조사결과 보고서’ 의 내용과 본 설문조사 연구에서 공통적으로 비교분석할 수 있는 6개 부분을 추출하여 약 10여개윌간의 변화를 비교분석하였다. 분석결과 부정적인 응답자가 24.2%p가 줄어들었고 긍정적인 응답자는 1.29%p가 줄어들었다. 이는 부정적인 평가를 하던 구성원들이 긍정적인 평가자로 전환되어 팀제에 대한 이해가 확산된다는 측면에서 발전적이라 할 수 있으나 문제점에 대한 지속적 해결노력이 필요하다는 것을 시사한다 하겠다. 임파워먼트는 개인과 조직차원에서 생산성을 향상시키는 것으로 증명되었다. 팀 임파워먼트를 높이기 위해서는 경영진이 변혁적 리더십을 발휘해야 하고, 낮게 나타난 경영진과 조직구성원 사이에 신뢰가 무엇보다 먼저 향상되어야 할 것이다. 모든 본부와 직급에서 높게 나타난 업무기피자에 대한 부담이 큰 것으로 확인되었다. 이러한 결과는 전체 팀원에게 고른 업무분담이 되고 있지 못하다는 것을 뜻한다고 볼 수 있다. 그리고 구성원들은 회사의 평가보상시스템을 신뢰하지 않는 것으로 나타났다. 팀의 규모와 업무배정에 좀 더 세심한 배려가 필요하고 평가보상 체계에 사각지대가 생기지 않도록 현행 평가제도를 보완하여야 할 것이다. 리더십은 조직의 특성이나 구성원들의 성향에 따라 각양각색이다. 조직에 맞는 KBS만의 변혁적 리더십, 그리고 팀별로 각각의 특성에 맞는 리더십을 개발하여 운영할 필요가 있다. 또한 팀제의 정착을 위하여 내부 교육과 훈련을 좀 더 강화할 필요가 있다고 판단된다.

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다국적기업 한국자회사의 의사결정 자율성에 영향을 미치는 요인에 관한 연구 -반도체산업 관련기업체를 중심으로- (A Study on the Attributes determining the Extent of Autonomy in Decision Making for Korean Subsidiaries of Multinational Corporations - Focused on Semiconductor Industry Related Companies -)

  • 정낙경;김홍
    • 한국벤처창업학회:학술대회논문집
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    • 한국벤처창업학회 2008년도 추계학술대회
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    • pp.135-168
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    • 2008
  • 본 연구는 다국적 기업 한국자회사의 의사결정 자율성에 영향을 미치는 요인에 관하여 알아보았으며, 다국적 기업의 국제경영전략 및 유형에 따른 의사결정 자율성에 차이가 있음을 확인하였다. 본 연구의 결과, 한국자회사의 시장 환경 불확실성은 정부환경, 경쟁 환경, 수요환경 및 공급환경 불확실성으로 구분되었고, 내부자원 특성은 생산능력, 재무능력, 마케팅능력 및 인사관리능력의 독립성으로, 경영성과는 총매출액 및 당기순이익, 시장점유율의 증가로 구분되었다. 정부환경과 경쟁 환경 불착실성, 재무능력과 마케팅능력의 독립성은 한국자회사의 의사결정 자율성에 부분적으로 영향을 미쳤고, 생산능력과 인사관리능력의 독립성은 모든 분야의 의사결정 자율성에 영향을 미치고 있었다 그리고 경영성과에서 총매출액 및 당기순이익, 시장점유율의 증가는 부분적으로 한국자회사의 의사결정 자율성에 영향을 미치고 있었다. 그리고 다국적 기업의 유형이 본국 및 세계중심주의보다 현지국 중심주의에서 한국자회사의 의사결정 자율성이 더 놀았다. 이러한 연구 결과를 통하여 본 연구는 한국자회사에서 모회사로부터 의사결정 자율성을 높일 수 있는 경영전략 수립에 대한 시사점을 제공하였다.

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