• Title/Summary/Keyword: 연결관

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Designs of Academic Category and Modern Learning in Nishi Amane and Choe Han-gi's Philosophy (니시 아마네와 최한기의 '학역(學域)'과 근대학문의 구상)

  • 김성근
    • Studies in Philosophy East-West
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    • no.95
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    • pp.95-120
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    • 2020
  • This study compares Nishi Amane and Choi Han-gi's designs of modern learning in 19th century. Nishi and Choi had a strong belief that human learning had advanced in history. Nishi had gained such an idea of academic progress through Comte's empirical philosophy and Western natural science, on the other hand Choi Han-gi came to the idea of such academic progress through studying Western natural science which was translated to Chinese. However, Nishi and Choi were very different in their acceptance of Western natural science into their academic systems and in designing new modern learning. Two goals of Nishi's modern learning were the division of academic disciplines, and the design of integrated academics by an interconnection of academic disciplines. Nishi divided all disciplines into three larger frameworks of Intellectual Science, Physical Science, and Common Science, and placed detailed subjects within them. In particular, Intellectual Science and Physical Science correspond to today's Humanities and Natural Science. Nishi could effectively achieve the classification of such learning by dividing ri(principle) of Confucianism to the laws of the human world and the laws of the physical world. Nishi tried to pursuit Philosophy by again linking these divided disciplines together. In Nishi's academic methodology, the influence of Comte's philosophy of revealing sociology through the study of the natural sciences was well represented. Choi Han-gi also paid attention to the establishment of integrated learning through the distinction of academic studies and reunion of such disciplines. Choi was not as elaborate as Nishi in terms of division of studies. Whereas Nishi divided the learning into Intellectual Science and Physical Science by the distinction of the law of the physical world and the law of human world, Choi Han-Gi thought that all subjects shared the so-called law of ki(vital force). Nishi thought that the reunification of all learning could be achieved by reconnecting the law of the physical world and the law of the human world. As a result, howerer, Nishi's academic chain, and his philosophy was not successful. After Nishi's thinking, Japanese academic society was dominated by Dualistic concepts such as natural sciences and humanities, subjectivity and objectivity, and Nature and humans. Choi's view of dividing all disciplines with the universal law of ki was more vague than Nishi's one. However, Choi's ki-science, although lacking concreteness, was able to escape the dual cognitive structure that East Asians had since Nishi. It is worth noting that Choe's philosophy leaves possibilities for new modern study.

The Environmental and Ecological Meaning of Bibo Landscape in Otgol Village (옻골마을 비보경관의 환경생태적 의미)

  • Jang, Byoung-Kwan;Whang, Bo-Chul
    • Journal of the Korean Institute of Landscape Architecture
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    • v.36 no.2
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    • pp.32-41
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    • 2008
  • An empirical study and environmental and ecological analysis were conducted on Otgol Village(a village of the Gyeongju Choi's clan in Daegu) where an enclosed pond and groves are still observed. In particular, the enclosed pond and groves and village water system were investigated from an ecological perspective. The enclosed landscape is described based on feng shui principles and the environmental and ecological significance were examined. In general, the environmental and ecological significance is very broad; however, they were analyzed in terms of the quality of life as an empirical study as follows: First, water quality was measured to investigate the improvement of continuous water system functions. In other words, water quality was measured at East Valley(resting space), West Valley(living space), the enclosed pond where the two valleys merge, and the stream that flows out of the pond. Second, the climate functions of the enclosed groves that border the village were examined. In other words, temperature was measured in two places(200m distance from the center of the groves). Third, whether or not a sound ecosystem can be sustained was investigated. In other words, landscape ecological indicators were chosen and measured. The results are as follows: First, the enclosed pond played the role of purifying water quality. While the East Valley has been popular with men for its rock walls and torrents, the West Valley has been popular with women as a living space(ex: doing the laundry). Therefore, the difference of water quality can be explained. Second, since enclosed groves are in a small village forest, they are very weak in terms of being wind proof and temperature reduction effects. Instead, they play the role of the village boundary. Third, the groves are ecologically sound considering the landscape ecological indicators and are similar to ordinary traditional rural villages. In terms of the connection of the green zone, the village groves are well connected to the village boundary wood. If the village groves are restored, in particular, they would offer a decent habitat for grove creatures. According to this study, the traditional village space was formed upon the influence of Feng Shui theories that are based on environmental and ecological principles that focus on the harmony between humans and nature. From the environmental and ecological perspective, the enclosed pond and groves are important factors in building a sustainable village. The diverse water space would help to improve water quality and increase water volume by promoting the water circulation system. In addition, the village woods would surround the village and decrease the temperature and humidity difference between winter and summer. If the groves are small and badly damaged, however, they are meaningful only in dividing the region. The overall improvement of a forestation system and botanical composition may increase the biological diversity and promote the migration of species. Otgol Village has developed an enclosed landscape to improve the village environment. In other words, a sound and refreshing living environment can be developed when the natural ecological system is well understood and properly preserved. Additionally, this traditional village planning will be the environmental and ecological method. From the perspective of environmental ecology, therefore, a traditional village is recommended.

A Study on the Dépaysement of the Animation (애니메이션에 있어서 데페이즈망에 관한 연구)

Sewer Decontamination Mechanism and Pipe Network Monitoring and Fault Diagnosis of Water Network System Based on System Analysis (시스템 해석에 기초한 하수관망 오염 매카니즘과 관망 모니터링 및 이상진단)

  • Kang, OnYu;Lee, SeungChul;Kim, MinJeong;Yu, SuMin;Yoo, ChangKyoo
    • Korean Chemical Engineering Research
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    • v.50 no.6
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    • pp.980-987
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    • 2012
  • Nonpoint source pollution causes leaks and overtopping, depending on the state of the sewer network as well as aggravates the pollution load of the aqueous water system as it is introduced into the sewer by wash-off. According, the need for efficient sewer monitoring system which can manage the sewage flowrate, water quality, inflow/infiltration and overflow has increased for sewer maintenance and the prevention of environmental pollution. However, the sewer monitoring is not easy since the sewer network is built in underground with the complex nature of its structure and connections. Sewer decontamination mechanism as well as pipe network monitoring and fault diagnosis of water network system on system analysis proposed in this study. First, the pollution removal pattern and behavior of contaminants in the sewer pipe network is analyzed by using sewer process simulation program, stormwater & wastewater management model for expert (XP-SWMM). Second, the sewer network fault diagnosis was performed using the multivariate statistical monitoring to monitor water quality in the sewer and detect the sewer leakage and burst. Sewer decontamination mechanism analysis with static and dynamic state system results showed that loads of total nitrogen (TN) and total phosphorous (TP) during rainfall are greatly increased than non-rainfall, which will aggravate the pollution load of the water system. Accordingly, the sewer outflow in pipe network is analyzed due to the increased flow and inflow of pollutant concentration caused by rainfall. The proposed sewer network monitoring and fault diagnosis technique can be used effectively for the nonpoint source pollution management of the urban watershed as well as continuous monitoring system.

Role of Ghrelin in the Control of Reproductive Endocrine Function (포유류 생식 내분비 기능 조절에서 Ghrelin의 역할)

  • Lee, Sung-Ho
    • Development and Reproduction
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    • v.13 no.4
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    • pp.207-215
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    • 2009
  • Numerous factors can affect the activities of hypothalamus-pituitary-gonad (HPG) hormonal axis, resulting in alteration of reproductive capacity or status such as onset of puberty and menopause. Soon after the finding of leptin, a multifunctional hormone secreted from adipocytes, a close relationship between reproduction and body energy balance have been manifested. Ghrelin, another multifunctional hormone from gastrointestinal tract, is an endogenous ligand of growth hormone secretagogue receptor (GHSR), and is thought to be a counterpart of leptin in the regulation of energy homeostasis. As expected, ghrelin can also modulate the reproductive capacity through the modulation of activities of HPG axis. This paper summarizes the current knowledge on the discovery, gene structures, tissue distribution and roles of ghrelin and GHSRs in mammalian reproduction in particular modulation of reproductive hormone secretion in HPG axis. Like POMC gene expression in pituitary gland, preproghrelin gene can generate a complex repertoire of transcripts which further undergo alternative splicing and posttranslational modifications. Concerning the roles of preproghrelin gene products in the control of body physiology except energy homeostasis, limited knowledge is available so far. Several lines of evidence, however, show the interplay of ghrelin between metabolism and reproduction. In rat and human, the distribution of ghrelin receptor GHSRs (GHSR1a and GHSR1b) has been confirmed not only in the hypothalamus and pituitary which were originally postulated as target of ghrelin but also in the testis and ovary. Expression of the preproghrelin gene in the brain and gonads was also verified, suggesting the local role (s) of ghrelin in HPG axis. Ghrelin might play a negative modulator in the secretions of hypothalamic GnRH, pituitary gonadotropins and gonadal steroids though the action on pituitary is still questionable. Recent studies suggest the involvement of ghrelin in regulation of puberty onset and possibly of menopause entry. It is now evident that ghrelin is a crucial hormomal component in 'brain-gut' axis, and is a strong candidate links between metabolism and reproduction. Opposite to that for leptin, ghrelin signaling is likely representing the 'hunger' state of body energy balance and is necessary to avoid the energy investment into reproduction which has not a top priority in maintaining homeostasis. Further researches are needed to gain a deep insight into the more precise action mechanism and role of ghrelin in reproduction, and to guarantee the successful biomedical applications.

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Distribution and Characteristics of Heterotrophic Plate Count Bacteria in Water Samples from Drinking Water Dispensers (냉온수기에서 일반세균의 분포 및 분리한 세균의 특성)

  • Lee, Eun-Hwa;Koh, Ji-Yun;Kim, Jong-Seol
    • Korean Journal of Microbiology
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    • v.44 no.3
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    • pp.244-250
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    • 2008
  • To evaluate bacteriological water quality, samples were taken from drinking water dispensers placed at S company (S-C) and U highschool (U-H) in Ulsan. The medians of heterotrophic plate counts (HPCs) were 53 CFU/ml for the 74 water samples of S-C and 80 CFU/ml for the 36 cold water samples of U-H, and 38% of the S-C and 42% of the U-H samples showed HPC bacterial concentrations higher than 100 CFU/ml. Coliform bacteria were detected from one sample of S-C. To determine the major source of bacterial contamination, water samples were taken daily for $6\sim8$ days from the bottled water containers as well as the faucets of an experimental water dispenser. While the average HPCs in the bottled water containers were 33 CFU/ml for the first and 132 CFU/ml for the 2nd analysis, the HPC concentration in the cold water samples was 1,022 CFU/ml for the 2nd analysis. These results suggest that the majority of bacteria detected in the cold water samples were originated from the biofilms on the surface of water passages within the water dispensers. There was no significant increase in HPC bacterial concentrations within the bottled water container after installation on the water dispenser. We could isolate and tentatively identify 3 genera 6 species of Gram-positive and 7 genera 7 species of Gram-negative bacteria from the plate count agar plates of U-H samples. Among the isolates, 72% were observed as Gram-positive, and Micrococcus spp. was the most abundant with 54% of the total, followed by Sphingomonas paucimobilis with 16%. It appears that most of the HPC bacteria detected in water dispensers originate from indoor airborne bacteria, which may play important roles in the formation of biofilms on the surface of water passages within the water dispensers.

Dynamic Behavior of Reactor Internals under Safe Shutdown Earthquake (안전정기지진하의 원자로내부구조물 거동분석)

  • 김일곤
    • Computational Structural Engineering
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    • v.7 no.3
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    • pp.95-103
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    • 1994
  • The safety related components in the nuclear power plant should be designed to withstand the seismic load. Among these components the integrity of reactor internals under earthquake load is important in stand points of safety and economics, because these are classified to Seismic Class I components. So far the modelling methods of reactor internals have been investigated by many authors. In this paper, the dynamic behaviour of reactor internals of Yong Gwang 1&2 nuclear power plants under SSE(Safe Shutdown Earthquake) load is analyzed by using of the simpled Global Beam Model. For this, as a first step, the characteristic analysis of reactor internal components are performed by using of the finite element code ANSYS. And the Global Beam Model for reactor internals which includes beam elements, nonlinear impact springs which have gaps in upper and lower positions, and hydrodynamical couplings which simulate the fluid-filled cylinders of reactor vessel and core barrel structures is established. And for the exciting external force the response spectrum which is applied to reactor support is converted to the time history input. With this excitation and the model the dynamic behaviour of reactor internals is obtained. As the results, the structural integrity of reactor internal components under seismic excitation is verified and the input for the detailed duel assembly series model could be obtained. And the simplicity and effectiveness of Global Beam Model and the economics of the explicit Runge-Kutta-Gills algorithm in impact problem of high frequency interface components are confirmed.

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Exocrine Pancreatic Secretion in Response to Electrical Stimulation of Reticular Formation in Mesencephalone in Rats (흰쥐에서 중뇌망상체의 전기자극이 췌장액 분비에 미치는 영향)

  • Park, Hyoung-Jin;Lee, Yun-Lyul;Kwon, Hyeok-Yil;Shin, Won-Im
    • The Korean Journal of Physiology
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    • v.20 no.1
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    • pp.1-7
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    • 1986
  • It has been well documented that the peripheral autonomic nervous system plays an important role in exocrine pancreatic secretion. However, the role of the central nervous system in pancreatic function is still obscure even though the central nervous system has been known to control gastrointestinal functions through the autonomic nervous system. Since the reticular formation in the mesencephalone seems to integrate the autonomic function, the present study was undertaken to investigate a possible influence of the reticular formation upon the exocrine pancreatic secretion. Twenty·two albino rats fasted for 24 hours were anesthetized by intraperitoneal injection of urethane in a dose of 1 g/kg, The pancreatic duct was cannulated to collect pancreatic juice and bile juice was diverted to the jejunum. The gastroduodenal junction was ligated to Prevent passage of gastic juice into the duodenum. A pair of electrodes were bilaterally inserted in the reticualr formation of the mesencephalone with aid of a stereotaxic apparatus. When the volume of pancreatic juice secreted for 10 min became constant, the reticular formation was electrically stimulated for 10 min. Parameters of the electical stimulation was 1.3V, 40 Hz and 2 msec. When the pancreatic secretion returned to the level before the electrical stimulation, cervical vagotomy (11 rats) or administration of propranolol (11 rats) in a dose of 0.1 mg/kg through the jugular vein was carried out. Ten minutes after the treatment, the electrical stimulation of the reticular formation was repeated. The brain was fixed by perfusion of 10% formaline solution through the heart, and then placement of the electrode tip was examined histologically. Protein concentration and amylase activity in samples of Pancreatic secretion were measured. The electrical stimulation of the reticular formation significantly increased in volume $({\mu}l/10\;min)$, Protein output $({\mu}g/10\;min)$ and amylase output (U/10 min) in the pancreatic secretion. The stimulatroy effects were not affected by the cervical vagotomy but completely abolished by propranolol. Meantime, it was also observed that both vagotomy and propranolol significantly reduced the pancreatic secretory function. These results indicate that the reticular formation in the mesencephalone may exert a stimulatory effect upon the Pancreatic secretory function not through the vagus nerve but through the sympathetic pathway in anesthetized rats.

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A Study on the Meaning and Spatial Characteristics of the Chinese Zhuozhengyuan from the Tablets (편액을 통해 본 중국 졸정원의 의미와 공간 특성)

  • Ham, Kwang-Min;Son, Yong-Hoon;Li, Shu-Hua
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.35 no.4
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    • pp.98-109
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    • 2017
  • The results of this study attempting to graft to the space by cognizing and categorizing the characteristic of the under-toned private property to the tablets of the Zhuozhengyuan are as follows. The tablet of Zhuozhengyuan was typed into three groups. In the A group, the frequency of artificial elements including the top, ship, and head was high, and the main emphasis was on the elegance and integrity spirit that the Sunbi(classical scholar) had to have. It has a characteristic of good architects such as pavilion and Nu(樓) is included and as it is adjacent to the water surface the one side of the building is integrated to the water surface. The B group is characterized mainly by the fact that the scenery is portrayed through the climatic factors including rain, wind, and snow, or the scene atmosphere and it is located at the top of the summit which is good for viewing the scenery. In the C group, plant elements such as lotus, magnolia, plum, and bamboo appeared frequently, and various buildings such as pavilion, Kwan(館), Gak(閣) and Dang(堂) belong to this structure. The structure has the characteristic of integrating directly with the water surface or putting the terrace between and scattering throughout the whole garden. Furthermore, this study identified area characteristics based on the frequency of the tablet type. In the west area, Group A is mostly distributed and the humor and concept implied in the tablet, combined with the shape and location of the scenery, viewpoint of the viewer, and the composition of the landscape, improved the orderliness of the space, which led to expand the scope of the enjoyment to the entire space. Meanwhile, in the middle area, tablets of Group C are mostly distributed, and the unique characteristics and shapes of the woody plants that were used as the name of the tablet were connected with various buildings including pavilion, Dang, Kuan, and Gak, improving the unique identity of the space and forming connection with the world of ideas through unity and independence.

A Study on Junghui Kim's Concepts in Seodok(書牘) (서독(書牘)에 나타난 완당(阮堂) 김정희(金正喜)의 사상(思想) 연구(硏究))

  • Kwon, Hyok-Soon
    • (The)Study of the Eastern Classic
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    • no.33
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    • pp.279-304
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    • 2008
  • This paper draws out the contents related to "Yuk(易)" Silhak(實學), and discusses the tendency in order to review the ideas shown in Wandang's Seodok(書牘). Also, it studies Taoism expressed in Seodok in terms of figuring out Wandang's Taoism. The features of his thoughts are following. The first one is the use of "Yuk(易)" for Soogichiin(修己治人). What he considered most important was Eumsiknamnyu(飮食男女) linked directly to the people's life. He maintained that a country must be ruled by doing Soogi(修己) with "Yuk(易)" and by making use of "Yuk(易)". The next one is both a view of Gyungsechiyong(經世致用) of Dongseoboolboon(東西不分) and a natural view of Iyonghooseng(利用厚生), standing on Silsagusi(實事求是). He actively accepted new learning and concepts those days, and he asserted that Western techniques should be even imitated for the sake of the nation. Thirdly, his view of Moowi(無爲) and Boolun(不言). He didn't use to do any Jakwi(作爲) of Jeosool(著述). This kind of view seems to save his life and be connected to Yangshin(養身) even though others tried to keep a jealous eye on and entrap him. Last, his concept of Jayeonsooneung(自然順應) and Jayeonhoigui(自然回歸). It is shown through his wish of farm work and his politics, saying that a king ought not to bind the people with faithfulness and propriety, and that he ought to rule the nation with humanity. In sum, Wandang's ideas shown in Seodok can be divided into two streams. One is Boshin(保身) through Moowijayeon(無爲自然), Boolun(不言), and Jayeonhoigui(自然回歸). The other is a pursuit of his studies for the purpose of Dukchi(德治) followed by Soogichiin, Kyongsechiyong, Iyonghooseng, and Injung. Here, since Boshin can be said to be advanced Soogi, and Soogichiin and others are connected directly to people's comfortable life, they can be integrated to Soogiianbaeksung(修己以安百姓). In other words, his thoughts were based on the fusion of Confucianism and Taoism, and he aimed at Soogiianbaeksung by accepting and using to take a look at the change of period and learning.