대청댐 유역 비점오염 저감방안 수립을 위한 연구

이대근 ( Dae Keun Lee ),김장현 ( Jang Hyun Kim ),전양근 ( Yang Kun Chun ) 한국물환경학회 2004 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2004 No.-

구두발표 : 비점오염원관리 (2) ; 대청댐 유역 비점오염 저감방안 수립을 위한 연구

이대근 ( Dae Keun Lee ),김장현 ( Jang Hyun Kim ),전양근 ( Yang Kun Chun ) 대한상하수도학회 2004 공동춘계 학술발표회 논문집 Vol.2004 No.-

품종 및 성별에 따른 쇠고기의 지방산조성 비교

김대곤,성삼경,정근기,최창본 대구산업정보대학 1995 논문집 Vol.9 No.2

Dae Gon The study was conducted to investigate the effect of breed, sex on fatty acid compostition. Hanwoo and Holstein used, in the study were classified by sex. The results are summarized as follows ; Oleic acid and unsaturated fatty acids(UFA) percentages of total fatty acids in Hanwoo were higher than in Holstein, but palmitic acid and saturated fatty acids(SFA) were lower in Hanwoo. Oleic acid in steers of Hanwoo and Holstein tended to increase compared with bulls. Oleic acid in rib loin and top round were considerably higher in Hanwoo steers than in Holstein steers. In Hanwoosteers, oleic acid and UFA tended to increased while stearic acid and SFA decreased as marbling degree increased.

東아시아地域의 經濟統合에 관한 一硏究 : Mainly on the Emerging of Localized Economic Zone 「局地經濟圈」 형성을 중심으로

李大根 成均館大學校 韓國産業硏究所 1994 韓國經濟 Vol.21 No.1

In the wake of the rapid economic development of Asian NIEs during the 1970s and 80s, the world has also given attention to the highly economic growth trends of other Asian countries, such as several ASEAN nations and China. The recent economic performances of these East Asian countries have shown as outstanding, especially in case of Tilan 8.3% of the average growth rate91990~92), Malaysia 8.7%(1990~93) and China 11.7%(1991~93) etc., compared to 1.7% of the world average rate(1990~93). With the break-down of East European socialist regime, a world-wide revival of economic regionalism has been brought, rapidly in Western Europe and North America as of the EU's market integration program and the NAFTA's launching. On the other hand, same movenment has also emerged in East Asian region, for instance, as of the AFTA formation by ASEAN, the EAEC idea by Malaysia and the APEC developing program by Asia-Pacific nations. Furthermore, we can find of the other form of regional integrations in this area, so called as the 'localized economic zone'(LEZ) of the various sub-regional sizes here and there. The LEZ is an unique integration form of which could be specialized as the Asian regionalism today. And that is different from the existing ones, such as EU, NAFTA and ASEAN as follows; Firstly, the LEZ is rather organized unofficiallly and naturally by private enterprises activities for their market strategies, than organized officiall and intentionally by an international agreement between nations engaged. So, that is quite different from the usual economic integration form such as a customs union or a free teade agreement. Secondly, the LEZ is rather organized of the sub-regional economies by the local governments, than organized of the naion-wide economy by the central government. In case of the North-East Asian economic zone, China, as a main memeber of the formation, does not involve in all country itself, but only involve in three local governmental districts which composed of Liao Nign Sheng, Ji Lin Sheng and Hei Long Giang Sheng. According to this point of view, ths paper tried to ezamin the implications of the East Asian unique regionalism(the LEZs), compairing to the existing European and American ones. As a preliminary result, we can likely say that there is a remarkable relationship between the recent dynamic LEZ's emergence and the good economic records of this region, of which the former has been in favour of the latter.

한국의 관광유람선업의 현황과 활성화 방안에 관한 연구

송대근 문화관광연구학회 2003 문화관광연구 Vol.5 No.1

The purpose of this study is the object of sightseeing cruise industry’s theoretical study. Also, by analyzising the present status of internal and external industry of cruise tour, this research may present the plan which activates the industry fit to the reality of Korea. For this, first, the seperate law for shipping service of excursion ship must be established. Second, the standard of shipping age must be abolished. Third, the institutionalization of safety class for the crew is necessary. Fourth, have to develop various tour packages. Fifth, need to construct the harbour for the large ship. Last, the industry of cruise and travel agency have to cooperate each other so that they can satisfy the demand of tour industry It is necessary for develope to cruise industry in Korea.

감사인의 양적 중요성 판단 기준의 적용에 관한 연구

金大根,趙徹衍 韓日經商學會 2001 韓日經商論集 Vol.21 No.-

This thesis studied if, under the varied audit environment, there is any significant difference on the degree of strictness (rigidity) of an auditor's quantitative materiality judgement when an auditor formulates audit opinion regarding to the exception out of gathered evidence. This study defined the degree of strictness as : the lower the average of threshold between unqualified and qualified opinion, the stronger the degree of strictness of an auditor's quantitative materiality judgment. This research found the followings: First, there is no statistically significant difference in the degree of strictness of an auditor's quantitative materiality judgment affected by the scale of the auditor. Second, the scale of the client affects an auditor in the degree of strictness of an auditor's quantitative materiality judgment. Third, there is a significant difference in the degree of strictness of an auditor's quantitative materiality judgment for listed vs. non-listed corporation. Fourth, the higher the debt ratio of the client, the stronger the degree of strictness of an auditor's quantitative materiality judgment. Fifth, an auditor applied quantitative materiality judgment more strictly for the client corporation with any turnover between net profit and net loss.

갑상선 유두선암 환자의 말초 혈액 단핵구로부터 수지상세포분화와 자가 세포독성 T 림프구 활성화 유도

송수근,최영식,박요한,이대희,장희경 고신대학교 의학부 2004 高神大學校 醫學部 論文集 Vol.19 No.1

Background: Dendritic cells (DCs) are rare leucocytes that are uniquely potent in their ability to capture, process and present antigens to T cells, and so selectively migrate through tissues to reach lymph nodes and spleen where initiation of immune responses takes place. It has been reported that a dense infilteration of dendritic cells correlates with a favorable prognosis in several types of cancer. A similar correlation also has been noted in patients with papillary carcinoma of thyroid. The purpose of this study is to determine whether DCs are generated from peripheral blood monocytes by using cytokines such as GM-CSF, TNF-α, and IL-4 and whether cytotoxic T cells activated by DCs attack the papillary carcinoma tissues. Methods: Peripheral blood was obtained from 2 patients with thyroid papillary cancer. DCs were established from monocytes by culturing in the presence of GM-CSF, Flt-3 ligand. TNF-α , and IL-4 for14 days. At day 14, expression of surface markers typical for DCs was analyzed morphologically. The immunophenotypic features of DCs such as CDla, CD83, and CD86 were analyzed by phase contrast microscopy. At day 15 DCs were incubated with thyroid cancer tissues and normal thyroid tissues for 7 days. Results: DCs were generated from the peripheral blood monocytes. The generated cells had the classic morphology of DCs. Activated cytotoxic T lymphocytes (CTLs) were observed. Veiled cell known as circulating DCs attached to the thyroid cancer tissues were observed. The CTLs activated by DCs were observed to attack the papillary carcinoma tissues by scanning electron microscope. However, normal tissues were not attacked by CTLs. Conclusion: DCs can be generated from the peripheral blood monocytes. Futhermore, the CTLs activated by DCs also can attack the papillary carcinoma tissues. These results that DCs can be used as adjuvants for adoptive immunotherapy of papillary thyroid cancer.

大學卒業定員制의 實施에 따른 學生生活 指導方案에 關한 硏究

崔根爀,張忠根,李相祐,張鎭吉,張大熙 충남대학교 1982 學生生活硏究 Vol.10 No.1

Higher education in Korea is faced with a new situation since 1981 when the government implemented a college graduation quota system designed to broaden the opportunities for higher education, alleviate the problem of the students who fail the entrance examination, and improve the quality of college graduates. The change of the system has brought about several serious problems including how to supply enough faculty members, how to provide enough educational facilities, and how to cope with the huge increase in the number of students, 30% more than graduation quota. The greatest single problem resulting from the implementation of college graduation quota system is the psychological and emotional unease aroused among the students, because 30% of those students with unsatisfying results must be banished from college before their graduation. This study aims to find effective measures for student guidance that each of the colleges can implement to help students adjust to the changed circumstances. After objectively investigating the problems from the various educational environments, from the recent students' views of college, and from the psychological and emotional unease arising in them by the fear of failing to graduate from their college because of implementation of the graduation quota system, a survey was conducted by means of a questionnaire composed of 40 questions and by means of personal interviews, 5,903 students, who are influenced by the graduation quota system, attending 19 public and private universities and colleges selected throughout the country. The data obtained from this survey were statistically processed with the help of the C. N. U. Computer Center, and the ratios of the responses to each of the questions were analyzed and calculated according to the distinctions of the total, sex, region, and major. The conclusions that the interrelations among the variant factors from each of the questions which were surveyed, analyzed and arranged have suggested are as follows : 1. The original purpose of graduation quota system should continually be clarified and communicated to all students and a concrete, specialized guidance system should be established to guide the minority of the students (13%) who don't fully understand the basic properties of higher educational institutions. 2. The institutions should provide enough educational facilities and supply enough faculty memebers to solve the problem of accomodating the large numbers of students. At the same time, they should suggest how students should learn positively and effectively to gain an expert knowledge, and how professors should gain public confidence in grade evaluation. Accompanying those measures, the government should develop a good policy to expand and distribute job opportunities to college graduates. 3. The admission quota should be controlled depending on the rate of naturally failed students, and then the students' unease and suppression caused by excessive competition can be relieved. In addition, it is advisable that the banished students should be allowed to transfer to University of the Air without regard to their grades. 4. An education devised to let students have a sound sense and way of thinking should be accompanied by a guidance system which their seniors, parents and society take part in. 5. An atmosphere conducive to sweet and well-rounded friendship among classmates should be created, sound extra-curricular activities should be encouraged and the number of students and adviser professor is in charge of should be lessened to a reasonable number.

不確實性下에서 原價-操業度-利益分析에 관한 硏究

金大根 제주대학 1981 논문집 Vol.13 No.2

1. Introduction Managers are constantly faced with decisions about selling prices, variable costs, and fixed costs. Basically, managers must decide how to acquire and utilize economic resources in light of some objective. Unless they can make resonably accurate predictions about cost and revenue levels, their decision may yield undesirable or even disastrous. Cost-Volume-Profit Analysis is a planning tool that considers the inherent relationships among prices, cost structure, volume, and profits. Cost-Volume-Profit Analysis answers such questions as : ① Given existing price and cost structure, what volume of operations is needed to earn a profit of x dollars? ② If prices are cut by x percent, how much of an increase in volume is needed to maintain the previous level of profits? ③ If variable costs are to be cut by the acquisition of some automating machinery (hence, an increase in fixed cost), how large a cut is required to provide a profit of z dollars, assuming the existing level of operations continues in the future? ④ If variable costs increase by x percent, what happens to profits, assuming that volume will increase by z percent? The problem of Cost-Volume-Profit Analysis under uncertainty has received considerable attention in accounting literature since the appearance of Jaedicke and Robichck (1964). However, most of the works dealing with the stochastic Cost-Volume-Profit Analysis were essentially based upon the following traditional relationship. T=S (R-V) -F……………… (1) (T=Total profit S=Sales volume in units R=Unit selling price U=Unit variable lost F=Total fixed cost) The purpose of this paper is to modify the traditional C-V-P model to broaden the scope of its applicability by presenting a general stochastic C-V-P model of wei shih (1981). The modified model would consider explicitly both the random demand and the level of production in the determination of actual sales and in the derivation of the distribution froms of the profit. 2. Wei Shih's general stochastic Cost-Volume-Profit model This section is designed to present a more realistic C-V-P relationship that seperates sales from production and demand and which properly places each one of them in their respective roles. To facilitate the model construction, the following assumptions are considered; ① Whenever production exceeds demand, future demand for any unsold units ceases to exist (goods of this nature include perishable, or style goods, or goods subject to rapid obsolescence) ② Any unsold units will be dispersed of with no salvage value. Now, lot D denote the demand variable, and Q the production quantity. Then the level of actual sales. S, can be expressed as S= Q, If ≥q ………………(2) D, If D<q Combining (1) and (2), and taking into account the total variable cost, VQ, as well as the relative magnitude of demand and production, one obtains the following general C-V-P model; T=Q(R-V)-F, if D≥Q RD -VQ-F, if D<Q 3. The application of wet shih's general C-V-P model This model is more general than the traditional one given in (1) because (1) is a special case of (2). Base on (2), the probability distribution of profit for any continuous demand variable, as well as its mean and variance, were obtained, which led to the derivations of the probability distribution of profit for the normally distributed demand variable together with its mean and variance. On the assumption that demand has a nomal distribution, these result were futher utilized to find (A) the optimal production quantity that maximizes the expected profit, and (B) the optimal production quantity that maximizes the probability of making at least a certain amount of profit. As a tool for profit planning, the solutions from the model enable the management to conveniently answer not only the question, "which product should the firm select?" 'but also the question, "How much of the selected product should the frim manufacture?"' in the pursuit of various goals and objectives. 4. Conclusion Most of the cost-volume-profit Analysis under uncertainty are based upon a traditional relationship that fail to take into account tile crucial elements of random demand and level of production in their determination of actual sales, and, as such, profit will be overestimated whenever production exceeds demand and when future demand fol unsold units ceases to exist. This deficiency has critically limited the scope of the usefulness of the model and has left the general validity of its derived results in doubt. This paper has presented wei shih's general C-V-P model which treats the traditional model as a special case, eliminates its deficiency and brings additional realism into the analysis. The general C-V-P model serve not only as a profit measuring and predicting tool to assist mangement in selecting a product among alternatives, but also as an optimization device through which the optimal level of production for the selected product can be concurrently determined. The model's capability to choose the most desirable product among alternatives and to provide, at the same time, optimal prouction levels for the chosen product in accordance with a firm's goals and objectives certainly adds a new dimension to the C-V-P analysis.

아파트 단위평면의 구성면적변화에 따른 거주후 평가(POE)에 관한 연구

송대호,장승재,박춘근 동아대학교 공과대학 부설 한국자원개발연구소 1995 硏究報告 Vol.19 No.2

The study is presented the model by Stepwise Multiple Regression Analysis, practiced Post Occupancy Evaluation with factor which is to be considered for the change of constituent area after grasping change of constituent area. Apartment unit plan composition is classified in private space, public space, supporting space. The results are as follows: Total constituent area ratio of the existing plan was 39.5 : 40.8 : 19.7 and dwelling consciousness one was 36.4 : 44.0 : 19.6. Compared private space with public space, public area requested increase rather than private area. The Multiple Regression formula between each factor and the constituent area is represented to by HY(Cl)=0.3118+0.52483(C2)+0.28383)C3)+0.10922(C6), but estimate ability of this formula comes into 53.3%.