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A Sensitivity Analysis of Cell Size on a Distributed Non-Point Source Pollution Model (분산형 비점오염원 모델에서 단위유역 크기의 민감도 분석)

  • Bae, In-Hee;Park, Jung-Eun;Park, Seok-Soon
    • Journal of Korean Society of Environmental Engineers
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    • v.27 no.9
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    • pp.952-957
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    • 2005
  • A sensitivity analysis study was performed to examine the effects of cell size on a distributed non-point source pollution model. The model, AnnAGNPS, whiff is a modified version of USDA's AGNPS, was applied to Eung stream watershed, a tributary of Cheongmi stream located in the South Branch of Han River System. The model components and results, such as channel length, slope, land use, and delivery ratio, were analyzed according to the various cell sizes from 10 to 200 ha. As cell sire increases, channel length decreases due to short-circuiting of meandering creek. The decreased channel length has more significant effects on the model results than any other geomorphological change. When the effects of land use and soil distribution are excluded, sediment delivery loads increase due to shorter time to reach the outlet of the watershed in larger tell size. When those effects are included, however, sediment delivery loads decrease in larger fell size because the variety of land use types can not be inputted. The predominant land use in the applied watershed is forest with very low soil erosion such that the predicted sediment delivery might be much lower than real system. The cell size of 30 ha was determined to produce the most appropriate resolution. Surface runoff and non-point source loads of TN, TP and BOD were predicted and the results agree well with the field measurements. From this study, it was shown that the model results would be very dependent on variations of topography, land use, and soil distribution, as a function of cell size, and the optimum cell size is very important for successful application of distributed non-point source pollution model.

Morphological and hematological analysis of and angered Eurasian eagle owl (Bubo bubo kiautschensis) (멸종위기종 수리부엉이의 형태학적 및 혈액학적 분석)

  • Jung, Bae-Dong;Park, In-Chul;Kim, Jung-Nam;Kim, Hyeon-Cheol;Cheong, Ki-Soo;Kim, Jong-Taek
    • Korean Journal of Veterinary Service
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    • v.32 no.4
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    • pp.391-397
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    • 2009
  • Eurasian eagle owl (Bubo bubo kiautschensis) is a natural monument (No. 324) and is also classified as an endangered wildlife grade II the Ministry of Environment of Korea. Eurasian eagle owl is threatened by the human being. But the efficient rescue and treatment for Eurasian eagle owl are still problematic, due to lack of basic data. In this study, to obtain basic resources for establishing more efficient rescue system, we held a physical examination and measured size physical part. In addition, we analyzed blood sample and feces samples and autopsy. We conduct the physical examination with measuring tapes and scales for 16 live features and 11 dead features. After inhalation anesthesia take the blood samples from wing vein. Blood samples are analyzed in hematologic and chemistric methods. We collected the feces through individual floor of cages from 12 live features and conducted the feces analysis. Autopsy was conducted for 11 dead samples. In physical examination, the mean body weight and total length of live features was 2.26${\pm}$0.35kg, 61${\pm}$2.38cm, the mean body weight and total length of dead features was 1.57${\pm}$0.51kg, 59.31${\pm}$3.51cm. Mean PCV was 46.57${\pm}$4.97%, while mean TPP was 3.49${\pm}$0.57g/dL. In feces sample analysis, 9 of 12 owls(75%) were infested by gastrointestinal helminths. The infection rates were: Trematoda (41.7%), Capilaria sp.(66.7%), acanthocephalans (25%). In autopsy, we confirmed 11 features were infested by duplicated infection of more than 2 helminths. Result of this study will be used for establishing reference range for physical features, blood analysis in Eurasian eagle owl. Therefore, to obtain basic resources for establishing more efficient rescue system, we have to make long-term conservation plans for Eurasian eagle owl.

Geographical comparison on different methods for identification of Streptococcus parauberis isolated from cultured olive flounder, Paralichthys olivaceus (양식 넙치에서 분리한 Streptococcus parauberis의 동정방법에 따른 지역적 비교)

  • Cho, Mi-Young;Oh, Yun-Kyeong;Lee, Deok-Chan;Kim, Jae-Hoon;Park, Myoung-Ae
    • Journal of fish pathology
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    • v.20 no.1
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    • pp.49-60
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    • 2007
  • Non-hemolytic Streptococcus parauberis isolated from diseased olive flounder, Paralichthys olivaceus in the South coast of Korea were identified by physiological, biochemical and genetic analysis in order to define the different characteristics geographically. First, twelve strains of S. parauberis were isolated from catalase-negative gram-positive cocci by multiplex PCR assay. Phenotypic identifications were performed with commercially available kit (API 20 Strep and API ZYM system). Analysis of API profiles of the isolates showed that strains were identified as either of Lactococcus lactis, S. constellatus or S. uberis. Moreover, S. parauberis isolated from olive flounder differed from that of turbot (X89967) to the test of not Voges-Proskauer, arginine, hippurate, alkiline phosphatase and pyrroidonyl arylamidase but β-glucuronidase. All S. parauberis isolates were sensitive to florfenicol, ampicillin, ofloxacin and vancomycin but were resistant to oxolinic acid, flumequine, nalidixic acid and sulfisoxazol. However, the 16S rDNA sequences of the isolates showed 99% similarity to S. parauberis KCTC 3651 (AY584477) and a great homogenecity among the flounder isolates.

Locational Patterns of Domestic Stores and Global Purchsing Offices of Multinational Retail Corporation: A Case Study of Daiei Superchain in Japan (다국적 소매기업의 국내 점포와 세계 사업소망의 입지전개: 日本 다이에 슈퍼체인을 사례로)

  • 한주성
    • Journal of the Economic Geographical Society of Korea
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    • v.2 no.1_2
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    • pp.183-194
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    • 1999
  • This paper examines the relationship between the locational patterns of global and domestic stores. Objective corporation for this research is the Daiei Inc., which is multinational retail corporation of general merchandise store industry. Used data are For the Customers and 1997 Annual Report published by the Daiei Inc. in 1997, and Worldwide Branch Location of Multinational Companies published by the Gale Researchy Inc. As a result it is recognized that the headquarters of supermarket companies are not necessarily established in the largest city of the store networks. In addition, the chani o stores does not always correspond to the economic territory area of a city or a regional urban system. Usually, supermarkets are established first one after another around the headquarter, so that the store network becomes intensive. Moreover, supermarket companies exhibit a tendence of expanding after having increased density of their stores in their indigenous regions. It seems that supermarket companies try to lay the foundation of their operation firmly on their indigenous regions, while they expand the store network into neighboring regions in order to enlarge their profits. This phenomenon appears more and less partly in the location of oversea purchasing offices. First oversea office location appears in neighboring countries whose headquarter is located in Japan. Another oversea office location is established in higher order city of another continent. Usally after the number of oversea offices increases in their headquarter's neighboring region, the oversea office network exhibits a tendency of expanding in another continents. in addition, network of oversea offices does not always correspond with world urban system. The location of oversea offices is formed, after internalization of supermarket stores was established in Japan. And when increasing rates of supermarket stores was low in Japan, number of oversea offices increased.

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A Study on the Network and Space Planning of the Public libraries in Daegu City for Construction of Knowledge-Information infrastructure (지식정보 인프라 구축을 위한 대구시 공공도서관의 지역네트워크 및 공간계획에 관한 연구)

  • Hwang, Mee-Young
    • Korean Institute of Interior Design Journal
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    • v.20 no.5
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    • pp.236-244
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    • 2011
  • As the digital information infrastructure is established for the public library system in the contemporary age, expectations and demands surrounding the public library system are growing rapidly as the place of exchange and enjoyment of information and culture, and as the place of life-long learning. In addition, a new kind of information & culture services are needed to meet the demands of contemporary men and women, who are exploring information as the information environment undergoes rapid changes - from increase in the volume of digital publications, to increase in the usefulness of online information resources, to strides made in the media industry. The public library will continue to play its role and function by providing to all users all available information, whether it's available online or offline, whether it's in a physical format or in a digital format. As such, design and management of a space appropriate as a new information environment are needed. It is deemed that an information infrastructure for Daegu that can improve the quality of life in the region and can increase user accessibility to information in this information age is needed, as well as reorganization of the pertinent environment. Therefore more public libraries have to be built in Daegu as a necessity, and it is urgently needed that the information services be expanded through an organic linkage between local libraries such as between the central library and the branch libraries. This paper aims to provide basic data for building of public libraries in Daegu. To establish an information infrastructure for Daegu, a direction is given for the establishment of a local network of public libraries and ways for improvement are explored. This paper is significant in that, first, it helps in the planning of a local network of public libraries, which plays a crucial role in improving accessibility to information as well as the level of their use; and second, it helps in setting up guidelines for spatial configuration of the user space. As for the method, quantitative review of the information environment is to be done by analyzing the present situation of the public library network in Daegu from the perspectives of region, facility, and space, in order to present a method of user-centered spatial configuration that meets the changes in social roles and forms of information in the contemporary society.

The Medical Study about the Development of Pediatrics for Song(宋) Dynasty (양송시기(兩宋時期)의 소아과학(小兒科學)에 관한 연구)

  • Park, Hyun-Kuk;Kim, Ki-Wook;Yi, Yeong-Seok
    • Journal of Korean Medical classics
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    • v.21 no.2
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    • pp.1-20
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    • 2008
  • The Song Dynasty(宋代) period gained the summit in the developmental phase of the history in pediatrics. In 1076, Taeuiguk(太醫局) was founded and Sobangmaek(小方脈) was the one of nine branch in Taeuiguk(太醫局). As a result, educational agency and system was arranged in the field of pediatrics. At the same time, pediatrics have furnished with foundation to develop independent field in medical science. Especially, Byeonjeungnonchi(辦證論治) system is established in pediatrics science according to the compilation of "Soayakjeungjikgyeol(小兒藥證直訣)" by Jeoneul(錢乙). Children's doctors, Jeoneul(錢乙), Jinmunjung(陳文中) and Donggeup(董汲) arranged clinically theories, so they made that age the peak of the pediatrics. Looking at the developmental part of theory in pediatrics of the Song Dynasty period, Jeoneul(錢乙), who was the representative children's doctor in Song Dynasty period, insisted that children had formed Ojang-yukbu(五臟六腑) in the physiological part but they were not perfect like adult's. Therefore they had to consider the poor part in children's body, and then they had to cure them. 'Byeonjeung(變蒸)' was considered to be normal physiological phenomenon. Also he insisted that Yukeum(六淫), 'Pung, Han, Seo, Seup, Jo, Hwa(風, 寒, 暑, 濕, 燥, 火)' and 'Gyeong, Pung, Gon, Cheon, Heo(驚, 風, 困, 喘, 虛)' are the main cause of the children's five vital organ's pathology Like this, his academic thought, which lay emphasized on children's spleen and stomach and Ojangbyeonjeung(五臟辦證) main principles, affected on doctors, Donggeup(董汲), Yeomhyochung(閣孝忠), Yubang(劉肪), Jang-wonso(張元素), Idong-won(李東垣), Manjeon(萬全). Bangje(方劑) fields of pediatrics had developed so fast and "Taepyeongsunghyebang(太平聖惠方)" contained about 2689 kinds of children's prescription. According to this, there are so many kinds of medicinal shape, for example 'Hwan, San, Go, Dan(丸, 散, 膏, 丹)', which cured children' s disease. Through this, we find that the shape of medicine about the children's diseases had developed to the more simple direction, taking account of the children's clinical trait.

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A Quantitative Ultrastructural Study on the Effects of Ischemia and Reperfusion on the Rat and Cat Hearts (허혈 및 재관류가 흰쥐 및 고양이 심장에 미치는 영향에 관한 형태계측학적 연구)

  • Park, Young-Sik;Uhm, Chang-Sub;Suh, Young-Suk
    • Applied Microscopy
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    • v.22 no.1
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    • pp.42-54
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    • 1992
  • To understand the structural changes of the myocardial myocytes and endothelial cells in ischemic and reperfused heart, and to elucidate their roles in those conditions, the authors observed cat and rat myocardium ultrastructurally and evaluated them with morphometric techniques. In cat, mild ischemia and moderate degree reperfusion injury was induced by ligation of the anterior interventricular branch of left coronary artery and reperfusion. In rat, severe ischemia and irreversible reperfusion iniury was made using in vitro Langendorff techniques. In normal cat myocytes, the volume densities of cytoplasm, myofibrils, mitochondria, sarcoplasmic reticulum and T tubules were $0.11{\pm}0.013,\;0.51{\pm}0.096,\;0.25{\pm}0.082,\;0.09{\pm}0.008,\;0.02{\pm}0.010$ (Mean${\pm}$S.D.) respectively, and the myofibril/mitochondria ratio was $2.33{\pm}1.379$. The numerical density and average volume of mitochondria were $0.76{\pm}0.210/{\mu}m^3$ and $0.33{\pm}0.057{\mu}m^3$ respectively. In normal cat endothelial cells, the volume densities of cytoplasm, cytoplasmic vesicles, tubular systems (including endoplasmic reticulum and Golgi apparatus) and mitochondria were $0.43{\pm}0.023,\;0.28{\pm}0.007,\;0.22{\pm}0.021,\;0.03{\pm}0.014$ respectively. The mean thickness of endothelial cells was $230{\pm}45.2{\mu}m$. The numerical density and average volume of cytoplasmic vesicles were $508{\pm}55.0/{\mu}m^3,\;578{\pm}104.8nm^3$ respectively. In cat myocytes which received mild ischemic injury, the volume densities of organelles were not changed significantly in ischemic and reperfusion states. In reperfusion group myocytes, the numerical density of mitochondria was decreased significantly and the average volume was increased significantly. In endothelial cells, the volume density of tubular system in ischemic group and the average volume of cytoplasmic vesicles in reperfusion group were increased significantly. In rat myocytes which received severe ischemic injury, the volume density and average volume of mitochondria were increased significantly, and the volume density of sarcoplasmic reticulum and numerical density of mitochondria were decreased significantly in both ischemic and reperfusion groups. In ischemic and reperfused endothelial cells, the volume density and numerical density of cytoplasmic vesicles, the volume density of cytoplasm were decreased significantly. The volume densities of tubular system were increased significantly in both ischemic and reperfused groups. The volume density of mitochondria in ischemic group and the average volume of cytoplasmic vesicles in reperfusion group showed significant increase. The authors, based on the above observations, conclude that the mitochondria of myocytes and the cytoplasmic vesicles of endothelia are the first group of targets in ischemic and reperfusion injury and in this respect, the degree of ischemic insult is not significant. The role of myocyte mitochondria in reperfusion injury may be insignificant, but endothelial cells may contribute actively to reperfusion injury.

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A Case Study on the Continuous Quality Improvement for Leadership Outcomes Education in Yeungnam University (영남대학교 리더십 학습성과 교육 CQI 방안에 대한 연구)

  • Pyun, Kyung-Hee;Song, Dong-Joo
    • Journal of Engineering Education Research
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    • v.12 no.1
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    • pp.64-72
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    • 2009
  • The objective of the current study is to establish the CQI procedure of leadership outcome education, which is emphasized in engineering education accreditation. Leadership includes many program outcomes, especially soft skills, such as communication skill, team work skill, and etc. This paper studied leadership education program in Yeungnam University. In particular, this research was conducted by using focus group interviews with experts and working level staffs of relevant organizations for the analysis of Yeungnam University curriculum and non-curriculum courses related to leadership education and for the preparation of leadership education CQI method. In addition, we conducted leadership competence diagnosis, leadership education demand survey and satisfaction level survey on the leadership camp participants. Interviews with experts, lecturers and focus group of Dale Carnegie Research Institute Daegu branch that administered the progress of leadership camp were conducted along with analysis of education contents through non-participation observation method during camp period and participant students interviews. The conclusions are summed up as follows: To educate global leaders in true meaning, first, psychological level competence strengthening method and study completing ability improvement method should be considered simultaneously. In particular, for non-capital region universities, emphasis should be given to education for self-confidence and vision establishment. Second, leadership education methods of mid/long term and systematic curricular and extra-curricular type should be pursued. For instance, with the use of engineering design subject completing system, leadership education can be consolidated to engineering subject courses with engineering design projects or the system of mentor-pupil among earlier leadership camp participants and later participants may be utilized. Third, it is determined necessary to pursue and realize practical methods of conducting various intramural leadership related education activities in mid/long term perspective by organizing leadership education advisory group consisting of major, departments and intramural and extramural relevant organization authorities that focus on leadership education.

A Study On The Thermal Movement Of The Reactor Coolant System For PWR (가압 경수로의 냉각재 계통 열팽창 거동에 관한 연구)

  • Yoon, Ki-Seok;Park, Taek sang;Kim, Tae-Wan;Jeon, Jang-Hwan
    • Nuclear Engineering and Technology
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    • v.27 no.3
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    • pp.393-402
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    • 1995
  • The structural analysis of the reactor coolant system mainly consist of too fields. The one is the static analysis considering the impact of pressure and temperature built up during normal operation. The other is the dynamic analysis to estimate the impact of postulated events such as the seismic loads or postulated branch line pipe breaks event. Since the most important goal of the RCS structural analysis is to prove the safety of the RCS during normal operation or postulated events, a widely proven theory having enough conservatism is adopted. The load occurring on the RCS during normal operation is considered as the basic design loading condition throughout whole plant life time. The most typical characteristic of the RCS during normal operation is the thermal expansion of the RCS caused by reactor coolant with high temperature and pressure. Therefore, the exact estimation on the thermal movement of the RCS is needed to get more clear understanding on the thermal movement behavior of the RCS. In this study, the general structural analysis concept and modeling method to evaluate the thermal movement of the RCS under the normal plant operation condition are presented. To discuss the validation of the suggested analysis, analysis results are compared with the measured data which ore referred from the standardized 1000 MWe PWR plant under construction.

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A Study on a Habitat View of Korean Traditional Villages - in the case of Chung Jae Kwon Bul family - (조선시대 전통마을의 서식관에 관한 연구 - 충재 권벌의 종가를 중심으로 -)

  • 최기수
    • Journal of the Korean Institute of Landscape Architecture
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    • v.26 no.4
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    • pp.82-94
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    • 1999
  • According to Korean's geographical features of Taek Li Ji, the best location for human settlements is on the vicinity of a stream among a stream, an river and a sea, and not far from a ridge. The researcher chose one of best village which is called Yougokmaeul in Bonghwa-Gun, Kyungsang-Do. This village was created a gathering village with the same surname, can be translated as a hen and the front mountain can be seen as a rooster in the view of the shape of geographical features. As it were, the shape of this village and the cultivated land seems to be an egg inside a nest of a parent's chicken in the respect of the analogy of the theory of P'ungsuchiri which is known as Feng Shui in China and geomancy in the western world, and to effect the defensive psychology of the living environment in the terrain inland. This village is the studying place, Suckchunjungsa as the lecturing and studying place for their following students within the Chunghadonchun, the studying Yougok village, and even the ritual place performing ancestral sacrifices and the first incoming ancestor's graves in the same geographical system. The house site of the first incoming resident is surrounded the countian and is located in the front of Backsulryount which is the main mountain through Moonsu-san in the branch mountain of Korean's mountain system. Backsulryoung which is to be seen as the white peak, is symbolized the head of a hen which is to relate to a mysterious turtle in the view of P'ungsuchiri. And the pavilion which is called Chungamjung is sited on the rock of a shape of turtle which is symbolized to live longer. In the section of the mountain and water, Lee Jung Hwan mentioned a living place near the mountain stream is the best residential area and a landscape which is composed by a stream between mountains make a pleasure spirit and a bright feeling and make a refined person. If one can reach in the graceful mountain make a pleasure split and a bright feeling and make a refined person. If one can reach in the graceful mountain half day away, this kind of place must be a best living residential area to live. But this village was structured all in one place. And one of the ideas tangibly reflected in traditional Korean society's view of life and nature is the seclusion based on the Taoism. This kind of a dreamy thoughts make a dream to keep the paradise in our ancestors' mind. This kind of utopia is Chunghadonchun which is structured 5 aspects from the utopian gate near the Samgaesuewon to the village. These 5aspects is expressed by some Confucian thoughts as a small cosmos individually. On the third aspects which is the center among these aspects, the Suckchunjungsa which was made a seclusion place to devoting himself to his studies with refined tastes. The word of Jiju-am, Gangpung-dae, Jaewol-dae and Biryoung-pock are all expressed to cultivate one's moral character and to seek the truth by the Confucius'theory through the nature.

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