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      • KCI등재

        동강유역 생태, 경관보전지역의 지형경관 자원과 보전대책

        김장수 ( Jang Soo Kim ),장동호 ( Dong Ho Jang ),김성훈 ( Sung Hoon Kim ) 한국지형학회 2014 한국지형학회지 Vol.21 No.3

        이 연구는 문헌 및 현장조사를 통해 동강유역 생태·경관보전지역의 지형·경관 자원을 조사하고 지도화 하였다. 이를 통하여 지형·경관 자원의 분포특성을 살펴보고 동강유역 생태·경관보전지역의 지형·경관자원에 대한 지속적인 관리방안 및 보전방안을 제시하고자 하였다. 연구결과 본 연구지역은 동강 양안의 하천지역 지형·경관자원과 평창군 한탄리의 고원형 카르스트지역 지형·경관자원, 연구지역 전역에 걸쳐 대소로 분포하는 석회동굴 지형·경관자원, 연구지역 경계의 산지지역 지형·경관자원 등 크게 4개의 지형·경관자원으로 분류할 수 있었다. 이들 지형·경관자원은 현재 관광객의 유입과 거주민의 편의성 확보를 위해 일부 훼손되거나 훼손압력이 높은 것으로 조사되었다. 따라서 1일 탐방객을 제한하거나 학술적 의미를 담은 안내판 설치와 같은 지형·경관 자원의 보전과 주민이익이라는 공동 이익 추구를 위하여 지형·경관 자원별로 맞춤식 보전대책이 필요할 것으로 판단된다. This study has focused on geomorphological landscape resources analysis at the Dong-gang River Ecological and Landscape Conservation Area through literature review and field survey. Some appropriate maps have been created for this study. This study intends to examine the distribution characteristics of geomorphological landscape resources at the Dong-gang River Ecological and Landscape Conservation Area, and suggests a solution to manage and maintain the resources. The result has shown that the resources can be divided into four categories : The Dong-gang`s riverside geomorphological landscape resources, Pyeongchang-gun Hantan-ri`s plateau and karst area, limestone caves in various sizes throughout the entire study area, and the mountainous regions close to the study area boundaries. The study concluded that these geomorphological landscape resources are partially damaged or likely to be damaged due to tourist inflow and also the quality of resident lives needs to be improved. Therefore, limiting the number of tourists entering the area or installing guides who provide information about the academic importance of such resources are necessary in terms of maintenance. There is also a need for a customized solution according to geomorphological landscape resources in order to secure benefits for the residents as well.

      • KCI등재

        Analysis of Insulation Diagnosis for Generator‑Motor Stator Winding in Pumped Storage Power Plant

        Soo‑Hoh Lee,Tae‑Sik Kong,Hee‑Dong Kim 대한전기학회 2020 Journal of Electrical Engineering & Technology Vol.15 No.3

        In this study, insulation diagnostic tests were conducted on pumped storage power plant (PSPP) generator-motor stator bars with artifcially simulated defects in order to improve solutions to perform preventive maintenance and track insulation diagnostic data for generator-motors by proving the efectiveness of insulation indices. Moreover, ozone (O3) concentration was estimated in order to relate it to partial discharge (PD) in laboratory to ensure the efectiveness of ozone as another index for insulation deterioration. By performing an ofine PD test and ultraviolet (UV) observation on one of the generator-motors during overhaul, and an ozone concentration measurement for the identical machine after the overhaul, it was concluded that ozone estimation could be a powerful index for insulation diagnosis under actual operational conditions. It was further developed that ozone measurement is useful to detect not only discharges in slots as mentioned in some studies but also discharges at the end-winding as proven in this study. The fndings of this study are expected to contribute to more reliable maintenance of generator-motors in PSPPs by achieving elaborate insulation diagnosis via multiple diagnostic indices.

      • KCI등재

        Lightweight Printed Dipole Antenna Array With 3×2 Beamforming Network for Wide UAV Communication Coverage

        Dong‑Geun Seo,Jeong‑Soo Park,Gun ‑Ki Lee,Wang‑Sang Lee 대한전기학회 2020 Journal of Electrical Engineering & Technology Vol.15 No.4

        In this paper, a lightweight printed dipole antenna array with 3×2 beamforming network for wide unmanned aerial vehicle (UAV) communication coverage is presented. The proposed antenna consists of an upper substrate, a lower substrate, and two supports with a microstrip feeding. The upper substrate has a two-element printed dipole antenna array, and the lower substrate includes a beamforming feeding circuit and a ground plane as a refector of the proposed antenna array for gain improvement. For wide beam coverage, the proposed feeding network consists of three RF switches, one Wilkinson power divider, and one 90° hybrid coupler, and generates the wide beam using one broadside beam and two end-fre beams. Measured impedance bandwidth, peak gain, and half-power beamwidth (HPBW) of the proposed array operated from 5.03 to 5.15 GHz are approximately 2 GHz, 4.3 dBi, and 155°, respectively.

      • 捻轉法이 竝行된 鍼刺戟 및 電鍼刺戟이 鎭痛效果에 미치는 影響

        Park, Dong-Seok,Kim, Ji-Hoon,Min, Byung-Il,Oh, Soo-Myung 경희대학교 동서의학연구소 1999 INTERNATIONAL SYMPOSIUM ON EAST-WEST MEDICINE Vol.1999 No.1

        Dong-Seok Park¹, Ji-Hoon Kim¹ and Byung-Il Min, Soo-Myung Oh,³¹Department of Acupuncture and Moxibustion, College of Medicine, ²Department of Physiology, College of Medicine, And ³East-West Medical Research Institute, Kyung Hee University,Seoul, Korea. Analgesic Effect of Manual Acupuncture and Electroacupuncture combined with Twirling Method. Proceeding of International Symposium on East-West Medicine Seoul. 187-200, 1999.-Twirling the needle (TN) is one of several needing methods frequently used for acupuncture in the oriental medicine. The present study was conducted to see if TN enhanced the antinociceptive effect produced by plain-or electroacupuncture in the rat tail flick test. Rats (Sprague-Dawley, 200-300g)lightly anesthetized with thiopental sodium(40mg/kg, i.p.) were used in the tail-flick test. The basal reaction time for tail-flick was 2 sec. For "plain" acupuncture(PA), a needle was inserted for 20 min into a Chock-samni (ST36) acupuncture point which (is located at the anterior tibial muscle and about 10mm below the knee joint). For electroacupuncture(EA), train-pulses(3 Hz,0.3-ms pulse width, 0.2-0.3mA) were applied to the inserted needle for the period of insertion. For combining TN with either PA or EA, TN was performed during the each acupuncture period. Two methods for TN were used; twirling 3 times for 1 second persisted for 1 min in every 5 mins(long-duration and long-interval;LDLI) and twirling 3 times for 1 second persisted for 10 sec in every 1 min(short-duration and short-interval;SDSI). PA and EA produced an increase in tail flick latency (TFL); peak increases were 21.3±5.1% and 42.1±17.3% of the pre-acupunture control, respectively, and occurred immediately after cessation of 20min-acupuncture. Performing TN combined with PA increased TFL more than PA itself by showing a greater peak increase in TFL when performed with a SDSI-TN than with a LDLI-TN(60.6±12.5% and 42.7±22.7% of the pre-acupuncture control, respectively). Performing TN combined with EA also increased TFL more than EA itself and a greater peak increase in TFL was observed with a SDSI-TN as compared to a LDLI-TN(77.5±13.8% and 67.3±14.0% of the pre-acupuncture control, respectively). These results indicate that TN enhances both PA-and EA-produced antinociception where an greater enhanced antinociception than a LDLI-TN. It is suggested that performing a SDSI-TN combined with EA seems to be one of the most effective ways to produce analgesia.

      • DTMF 신호를 이용한 전자 보안 시스템

        이병수,이순흠,박동규,이동원,이선휘,황유동 순천향대학교 부설 산업기술연구소 1999 순천향 산업기술연구소논문집 Vol.5 No.2

        we have developed cost-effective effectronic security system. The system is superior to the day-time alert system which is currently used for banks in Choongchung Province. The system can monitor 512 banks and inform the police of emergency state and its related informations. The developed svstem is under field test at a police station in Choongchung Province.

      • TFD 소자의 전기적 특성에 관한 상위전극의 영향

        최희동,이명재,고동완,곽성관,김동식,정관수 慶熙大學校 레이저 工學硏究所 2002 레이저공학 Vol.13 No.-

        In this work, we examined the electrical and mechanical characteristics of TFD devices for various top electrode materials by measuring barrier height and performing ASE depth profile. It was found that the shift of current-voltage(Ⅰ-Ⅴ) characteristics of TFD device depends on the top electrode material. The main reason of the asymmetry in Ⅰ-Ⅴ curve was the differences in barrier height of top and bottom electrodes, and chemical composition at the interface region between top electrode and insulator layer also was important reason. The barrier heights(φ_B) evaluated from temperature dependence of the Ⅰ-Ⅴ relation are 0.7795(Al) 1.0287(Ti) and 1.2928(Ta) eV.

      • KCI등재후보

        빌라조경 설계사례에 관한 연구 : Case Study of Jang-chung Dong Villa

        김동찬,이윤수,유재설,박익수,임동민,임상재 경희대학교 부설 디자인연구원 1998 예술· 디자인학연구 Vol.1 No.1

        The goal of this study is to propose a plan for the Jang-Chung Dong Villa. This Villa is located on Jang-Chung Dong Jung-Gu, Seoul. And, this place is where high-class residential area. This Site area covers about 1925.6m². This base idea of this plan is to provide a community of dwelling houses with identity and amenity in outdoor spaces in order to create the high-class environment of outdoor spaces. Design principles are established as follow; to make spaces for flexibility in the garden related activities, to provide many chances to contact with nature, and to feel pride in the villa life.

      • Kim,Seong-soo : Possiblity of Low Salting Process in Gae-Woo Jeot(Salted and Fermented Gastrophoda) and Changes in Fatty Acid Composition during Fermntation 低鹽化 可能性 檢討 및 熱成중 脂肪酸 組成의 變化

        姜永周,河璡桓,金永東,宋大鎭,金洙賢,金成洙 제주대학교 1990 논문집 Vol.30 No.-

        To establish the way of processing of Gae-Woo jeot which used abalone intestine that has not been systematically used compare to its characteristic taste and fame as main ingredient and to develop as a local tourist good, the change of constituents the quality of salted fish products suring Gae-Woo jeot fermentation were examined. The results are as follows. 1. In the organoleptic test, Gae-Woo jeot which fermented through 65 days were dominant and the group of 105 salkt concentration were better than that of 20%. It was the best of 10% salted products to add small abalone. Both law salted(10%) and high salted (20%) Gae-Woo jeot were similar in general constityents, nutrients and texture. 2. Compositions of highly unsaturated acid were farely high to 45.6% and 46.1% in small abalone added froup and top sheel added group respectively. during 3 months fermentation low decreasing rate of 3~4% was shown. EPA(eicosapentaenoic acid) was approximately 7~8% and DHA(docosahexaenoic acid) was extremely low to be less than 0.3%. 3. In the changes General composition and pH, pH was within range of 4~5.5, 9~12% in protein, 3~5% in total sugar, 0.5~1% in lipid and approximately 1% in ash. 4. Gae-Woo jeot can be made with 10% low salting method, and 10% group gets all the better for taste, small abalone adding is recommended. 5. When low salt fermented fish of 10% is processed, it is highly recommended to put sorbitol, ethyl alcohol, lactic acid or other humectant for better taste and longer storage and good quality food additives must be developed for tourist and presently applied mil ordering transportation must be sought.

      • AHCISCOPUSKCI등재
      • 위증에 關한 文獻的 考察 : 病因病機, 治法 및 治方 中心으로

        金性洙,琴東昊 동국대학교 한의학연구소 1999 東國韓醫學硏究所論文集 Vol.7 No.2

        위증과 이완성 마비는 각각 한의학과 서양의학에서 쓰여지는 증상의 개념이지만 두개의 개념간에는 많은 유사점이 있다. 즉, 용어가 조금 다를 뿐이지 肢體가 委弱하여 잘 쓰지 못하여 수의적인 운동이 잘 되지 않는 것을 가리키는 개념임을 알 수가 있다. 이 위증 이완성 마비는 兩側性, 上行性이라는 특징을 가지고 있어서 片側性 및 上下肢 동시에 증상이 종종 발현하는 중풍의 후유증과 서로 다름에도 불구하고, 실제 임상에는 같은 것으로 誤認되는 경우가 많아 이에 대한 감별이 필요하다. 이 에서는 역대의 중요 문헌을 통하여 위증의 病因病 및 治法治方과 治方의 頻度를 각 시대별 대표적인 醫家의 順으로 정리함으로써 위증의 이해를 넓히는데 도움이 되도록 하였다. 따라서 위증에 대한 정확한 인식과 임상용의 기초자료를 얻고자 考察하여 보고하는 바이다. Among oriental medicine,s literatures, through Hwang-Je-Nae-Kyung(黃帝內徑) to Chung(淸), I extracted contents related to atrophy syndrome(??證). And studied it,s pathophysiology, therapy and treatment. Then, I concluded that result same below 1. The pathophysiologies of atrophy syndrome(??證) are lung heat(肺熱) & decreasing of it,5 circulation, making liver and stomach weaken & difficulty it's circulation, injurious to liver and kindney & atrophy of bonemarrow and muscle. 2. The most important point of atrophy syndrome(??證) therapy is Yang-Myung(陽明). The Priority of therapy is stomach & liver,s balance. And then we must protect acquired human function & clean humidity & temperature of Yang-Myung(陽明). under the principle of decreasing south organ,s function & protecting north organ,s function, we should Ja-Yeurn-Chung-Yeul(滋陰淸熱). so remove temperature of lung & protect liver and kidney & make strong stomach. 3. Among the therapy of atrophy syndrome in literatures Yi-Jin-Tang(二陳湯), Sa-Gun-Ja-Tang(四君子湯), Sa-Mul-Tang-Je(四物湯劑), Ho-Jam-Hwan(虎蠶丸), Dong-Won-Geun-Bo-Hwan(東垣健步丸) and Chung-Jo-Tang(淸燥湯) were many. These make strong spleen & dry humidity organ using Sa-Gun-Ja-Tang(四君子湯) and Yi-Jin-Tang(二陳湯) by Dog-Cheu-Yang-Myung(獨取陽明) method. Sa-Mul-Tang(四物湯), Phellodendri cortex(黃柏), Radix sophorae flavescentis(苦蔘), Carapax Testudinis(龜板) bitter taste make strong Yeum(陰) & decrease Yang(陽) so important human muscle powerful. Ho-Jam-Hwan(虎蠶丸), Dong-Won-Geun-Bo-Hwan(東垣健步丸), Chung-Jo-Tang(淸燥湯) make Chung-Yeul-Jo-Seup(淸熱燥濕), protect liver and kidney & strong muscle and bone. Besides Gum-Gang-Hwan(金剛丸), Yi-Myo-Hwan(二妙丸), Nok-Gak-Geu-Hwan(鹿角膠丸) & Ga-Mi-Sa-Geun-Hwan(加味四斤丸) were used in treatment of atrophy syndrome.

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