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- 저자 : 金東均 (검색결과 1,168 건)
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김동균,Kim, Dong-Gyun 대한양돈협회 1989 養豚 Vol.11 No.1
돈육생산비를 절감시키기 위한 첫단계 과제는 사료비를 최소화 하는 것이다. 그런데 현실적으로 사료의 품질과 돼지의 능력은 이미 국제수준에 도달해 있으므로, 사료비의 절약을 위한 현실적인 대책은 사료요구율을 최소 수준으로 유지할 수 있도록 환경을 조성해 주는 것이라 할 수 있다. 따라서 최근 양돈업계에서 크게 관심을 모으고 있는 생산성 향상을 위한 관리요인과 환경적 요소 그리고 시설요인에 대해 4회에 걸쳐 김동균 교수(상지대 축산학과)의 글을 연재하기로 한다
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金東均 空軍士官學校 1987 論文集 Vol.24 No.-
공중근무자와 일반근무자 간의 체격, 체력의 차를 규명하여 공중근무자를 위한 체력육성방안의 기초자료를 제공함을 목적으로 연구를 시도한바 다음과 같은 결론을 얻었다. 1. 신체의 영태적 발육정도를 알아보기 위하여 신체발달의 생리적 과정을 나타내는 중요한 지표로서 가장 기본적인 인체의 길이를 나타내며 성장의 척도가 되는 신장과 신체의 발육상태를 나타내는 체중을 측정 비교한 결과는 두 그룹간 의의있는 차가 없었다. 2. 체력은 신체의 운동능력을 평가하는 요인으로 스피드의 100m Dash, 근지구력의 Sit up, 전신 지구력의 1,500m 달리기 순발력의 스탠딩 브로드 점프, 근력의 pull-pus를 측정하였으며 결과는 100m Dash, 1,500m 달리기, 스탠딩 브로드 점프, pull-ups에서는 의의있는 차가 없었으나 situp의 경우는 매우 의의있는 것으로 나타났다. 이 관계에 대한 후속 연구가 기대된다.
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시장변동 상황에서 환율변동 영향 실증비교연구 : 수출산업 및 제조업 특성군
김동균,이창민 한국무역통상학회 2016 무역통상학회지 Vol.16 No.3
This study conducted profitability and contribution analysis for each variable such as exchange rate and ripple effect of dynamic exchange fluctuations. Subject groups were 6 industry groups which hold large proportion in their industry, showing high simple regression analysis response result value against exchange fluctuations, and 5 business groups for each characteristics such as loan possession in manufacturing industry. Following results were obtained. In case of market fluctuation, company with high debt proportion or low scale of current assets appeared to be more sensitive to exchange rate and also the influence on profitability grew larger gradually as the time passed on. The exchange rate volatility was relatively more influencing issue, and in all companies the shock of exchange rate volatility on each time progress stage appeared to have negative effect on profitability. Dollar exchange rate volatility turned out to have weaker influence compared to Yen in OLS simple regression analysis estimation, yet the impulse response function analysis showed strong influence of dollar indicating that in long-term perspective, management on dollar exchange rate volatility is important in profit improvement. In company performance analysis on each variable of exchange fluctuations, more than 90% of the subject groups appeared to have the influence of individual capability difference in creation of outcome as the most critical influence.
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한.미간 e-finance 금융포털사이트의 활용실태 비교
김동균,차순권 대한경영정보학회 2001 경영과 정보연구 Vol.7 No.-
For increasing the competitiveness and efficiency of Korea's finance industry under the new e-finance paradigm, this paper compared the practical use of finance portal site' on service parts and stage between Korea and U.S.A.. The services which can be served from site are banking, mortgage and credit loan, stock, card, retirement tax, PFM(Personal Finance Management), EBPP(Electronic Bill Presentment and Payment) and Account Aggregation and so on. The stage of site can be divided as the information provide stage which only gives information about service parts, on-line transaction stage which real-time transaction is possibile and PFM services provide stage according to development process. As a result, the beginning of finance portal service in Korea was lated about 10years and more than it of U.S.A. So the development stage of domestic portal site is still staying in the first step and the providing services and contents or business model development parts are also in the same stage than U.S.A. Resides, Korea's sites mainly focus on their first service parts even though they recently aim internet finance portal, and provide not real time transaction but finance information. On the other hand, the U.S.A. site support substantially not only various on-line transactions but also distinctive personal services like PFM(Personal Finance Management), EBPP(Electronic Bill Presentment and Payment), Account Aggregation and Trans-account, brokerage, education center, mortgage loan, mutual fund, option, pension fund and IPOs and so on. Thus, the site of Korea need to establish real type of internet finance portal which provides one-stop services on every type of finance to customers in the real time and also require the strategic integration among finance institutions. The next turn, they need to build information system and education center to give best satisfaction to customers and acquire customer information and marker environment changes and need to provide distinctive services to quality customers throughout database from this. Also the site should provide various type of banking services which refereed above like PEM, EBPP and education center etc, and the government of Korea should support the building of IT infrastructure to Physical, legal, systematic, sociocultural, technical and human resource sections. This paper provided the future movement direction of the domestic finance portal through comparison and analysis on the practical use of it between Korea and U.S.A. and also wanted to contribute for developing and reading of Korea finance portal in the new era of the finance paradigm.
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TCP Performance Improvement considering ACK Loss in Ad Hoc Networks
김동균,H. Yoo 한국통신학회 2008 Journal of communications and networks Vol.10 No.1
In mobile ad hoc networks, packet loss is unavoidable due to MAC contention, link failure or the inherent characteristics of wireless link. Since TCP relies on the timely reception of TCP ACK packets to progress the transmission of the TCP DATA packets, ACK loss obviously affects the performance due to two main problems: (a) Frequent occurrence of spurious retransmissions caused by timeout events and (b) impairment of the fast retransmit mechanism caused by the lack of a sufficient number of duplicate ACK packets. In particular, since most reactive routing protocols force the packets buffered over a path to be discarded while performing a route recovery, the performance degradation becomes more serious due to such ACK loss. In this paper, therefore, TCP with two piggybacking schemes (called TCP-pgy) is proposed in order to resolve the above-mentioned problems over reactive routing protocols. Through extensive simulations using the ns-2 simulator, we prove that our proposed schemes contribute to TCP performance improvements.
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