몰정치성의 참을 수 없는 진부함: 국제관계에서의 권력과 정치

정성원 ( Sung Won Chung ) 한국정치평론학회 2011 정치와 평론 Vol.8 No.-

It seems that International Relations has not really talked about politics nowadays. It also seems to have become banal as it has stopped yielding impressive political insights. This banality appears even powerful enough to make us question if International Relations is still a sub-discipline of political science. The main source of the banality is instrumental rationalism with which two mainstream approaches in the discipline, neorealism and neoliberal institutionalism, have imbued themselves. Since instrumental rationalist explanations can make sense mostly in an apolitical condition like self-regulating market, both neorealism and neoliberal institutionalism, to the extent that they continue to rely upon instrumental rationalism, could not easily doff the banality. In order to get over the banality and make the discipline interesting again we need to bring politics back into International Relations. The core to politics is power, which can be conceptualized as control over others through habitual compliance or enforcement. Power is, in this sense, essentially a relational concept. The main reason why neorealism and neoliberal institutionalism have become banal without producing deep insights into international politics is that they fail to equip themselves with such relationally defined notions of power. On the contrary, constructivism, with its emphasis on social structure, looks more promising in this respect, but it has not provided concept(s) of power that can help us overcome the banality yet. After all, what International Relations is in need of is a concept of power that will bring politics back into this discipline.

The Study of Thinned Young Apples Fermentation by Manipulating Preparation Treatment and Sugar Content

Sung Won Chung(정성원),Destiani Supeno(데스티아니 수페노),Pandu Sandi Pratama(판두 산디 프라타마),Won Sik Choi(최원식) 한국산업융합학회 2016 한국산업융합학회 논문집 Vol.19 No.4

This paper investigates the possibility to increase the economic value of the thinned young apple trough fermentation process. It is studies the optimal fermentation condition of thinned young apple by manipulating preparation treatment and sugar content. To do this following steps are done. Firstly, different preparation treatment for thinned young apple such as whole apple, cutting apple, and blending apple were done. The different sugar content such as 24° Brix, 15° Brix and 4° Brix was added. Secondly, the sugar contents and pH level were measured during fermentation process. Finally, statistical analysis was used to examine the relation between the preparation treatment, sugar content and pH level during the fermentation process. The experimental result shows that the different preparation treatment influences to the fermentation process. The blending apple treatment gave lower pH level compared to other kind treatments. The sugar content of thinned young apple was decrease during the fermentation process. The statistical analysis shows that the manipulation preparation treatment and sugar content affect the final pH level and whole fermentation process. Experimental result shows that the thinned young apple fermentation could be proposed as new alternative product in the market. The best fermentation process was obtained from blending thinned young apple treatment with 24° Brix.

다중경로 페이딩 채널에서 DAC 양자화 오차에 대한 IEEE P802.15.3a 멀티밴드 UWB 송수신기 성능 분석

정성원(Sung-Won Chung),이승윤(Seung-Yoon Lee),임승호(Seung-Ho Lim),박규호(Kyu-Ho Park) 대한전자공학회 2003 대한전자공학회 학술대회 Vol.2003 No.11

수치해석을 이용한 다겹보온자재의 내부공기층 함유에 따른 보온 특성

정성원(Sung-Won Chung) 한국기계가공학회 2012 한국기계가공학회지 Vol.11 No.4

This study investigates thermal insulation properties of multi layer materials depending on thickness of air layers. Numerical analysis on the heat flow of different insulating materials was conducted to identify whether their temperature distributions demonstrate the reduced rate of heat transfer conclusively or not. Analytical model is divided into two categories. One is to distinguish temperature distribution of the air-layer materials from the non-air layer ones. The other is to compare the efficacy between eight-layered insulating materials with no air-layer contained and three-layered insulating materials which include an air-layer definitely. In the latter case, the identical thickness is assigned to each material. The effect of thermal insulation by including an air-layer is verified in the first analytical model. The result of the second model shows that the insulation of the eight-layered materials is coterminous at the three-layered ones with an air-layer and the thermal insulation of the two materials is imperceptible. The benefits of cost and energy saving are anticipated if air-layers are efficiently incorporated in multi layer insulating materials in a greenhouse.

전기응석 부상분리에 의한 바이오매스의 처리에 관한 연구

정성원(Sung-Won Chung),정용택(Yong-Teak Jung) 한국산업융합학회 2005 한국산업응용학회 학술대회 논문집 Vol.- No.-

본 연구에서는 전기응석 분리법을 이용하여 호수에서 녹조현상으로 인해 오염된 물의 정화를 위한 실험결과,통전에 의해 조류는 현저히 응석 부상분리되고, 그 결과 회수수의 정수효과가 확실히 나타났다. 이것은 조류의 농도가 높을수록 상승하였다.<br/> 전기응석법에 의해 부상분리되어 얻어진 회수수의 SS, Chl-a, Org-N은 감소하고, DO, pH는 저하 하였다.<br/> 통전에 의해 회수수의 투과율이 증대하는 하편, 임의 한도를 넘으면 SS가 증대하는 현상이 관찰 되었다. 때로는 투명하게된 회수수의 SS가 원수의 SS보다 높은 경우도 있었다. 이것을 조류 농도가 낮고, 장시간 통전 했을때에 현저 하였다. 이들은 통전에 따른 Al(OH)₃의 생성에 기인하는 것이다.<br/> 통전에 의한 조류의 응석부상분리의 효과와 청정효과, 회수수의 Al(OH)₃의 용출에 관한 실용적인 조작조건을 정하는 것이 절실히 요망된다.<br/> 특히 본 실험은 조류의 농도가 클때 유효한 방법이므로 일사량이 많은 하기에 태양전지를 전원으로 이용한 제작에 의해 실용화 시기 할 수 있을 것으로 사료 된다.

평균 배기 압력 구배 지수를 이용한 실화 검출

정성원(Sung-Won Chung),심국상(Kook-Sang Sim),김세웅(Se-Woong Kim) 한국산업융합학회 2001 한국산업융합학회 논문집 Vol.4 No.4

This paper proposes a method to detect the misfired cylinder using a new misfire detection index. The new method of misfired cylinder is a comparison of pressure gradient during the blowdown period of exhaust stroke. If a misfire occurs, the engine will he lost some power and consumes the more fuel and the torque will be unsteady. Most of all, the misfire affects a bad influence of the 3-way catalyst and emits unburned hydrocarbon in the air. To prevent these unusual phenomena and eliminate the factor of the environmental pollution, it is important to detect the misfired cylinder. To do the experiment, set up the assist device on the manifold. This assist device is not deformed for conventional exhaust manifold and installed in the em of the exhaust manifold. Experimental results showed that the method using the mean gradient pressure index is proven to be effective in the detection of misfired cylinder on gasoline engine regardless loads and revolutions of the engine.<br/> <br/>

경추부 경막외 혈액 봉합술로 치료한 자발성 두개내 저압

정성원(Sung Won Chung),도현우(Hyun Woo Do),이정구( 대한통증학회 1999 The Korean Journal of Pain Vol.12 No.1

We teport a patient with spontaneous intracranial hypotension. In addition to the cardinal feature of a postural headache and a low CSF pressure, the patient also had subdural hematoma demonstrated by brain MRI. Radionuclide cisternography revealed a CSF leakage in the intracranium. CSF leakage from spinal meningeal defects may be the most common cause of this syndrome. The headache is a consequence of the low CSF pressure producing displacement of pain-sensitive structures, Methods of treatment are identical to those for post-dural puncture headaches. We experienced a patient with spontaneous intracranial hypotension developed in the intracranium who was successfully managed with a cervical blood patch.

경막외차단에 의한 무통분만이 응급제왕절개율에 미치는 영향

정성원(Sung Won Chung),박태규(Tae Kyu Park),김애라 대한통증학회 1999 The Korean Journal of Pain Vol.12 No.1

N/A Background: There is some concem that the administration of epidural analgesia for pain relief during labor increases the likelihood of cesarean delivery. But, several investigators showed a decrease in the rate of emergency cesarean delivery after epidural analgesia. The purpose of this study was to compare the emergency cesarean rate between the two groups with and without epidural analgesia. Methods: We reviewed retrospectively the medical records for 7846 parturients admitted our hospital between January 1, 1995 and December 31, 1996 and whose attending physician anticipated a normal labor and vaginal delivery. The number of parturients with epidural analgesia using 0.25% bupivacaine with fentanyl were 2839 and parturients without epidura1 analgesia were 5017. Results: An administration of epidural analgesia was not associated with the incidence of cesarean rate. 149 (5.25%) of 2839 parturients in epidural group and 371 (7.31%) of 5017 parturients in non- epidural group underwent emergency cesarean section. Conclusions: Our retrospective study has shown that an administration of epidural analgesia neither decrease nor increase in the rate of emergency cesarean delivery when compared with a non-epidural analgesia.

보조기구의 형상 변경에 따른 배기계에서의 압력 변동 분석

정성원(Sung-Won Chung),심국상(Kook-Sang Sim) 한국산업융합학회 2003 한국산업융합학회 논문집 Vol.6 No.4

This paper described the characteristics of the exhaust pressure and proposed the assistant device for detection of misfired cylinder. Misfire, one of abnormal combustion, affects a bad influence of the 3-way catalyst and emits unburned hydrocarbon. Therefore, to prevent these unusual phenomena and eliminate the factor of the environmental pollution, early detection and correction of the misfired cylinder play a very important role. The configuration of assistant device was changed by length and diameter of pipe and analyzed with the install position on the exhaust system. Experimental results showed that the configuration of assistant device is not affected more than length and diameter of pipe and the assistant device is be effective in the detection of misfired cylinder on the gasoline engine.

에너지 절감형 전기 유류 겸용 온풍기 개발

정성원(Sung-Won Chung),김동건(Dong-Keon Kim),공상호(Sang-Ho Gong) 한국기계가공학회 2011 한국기계가공학회지 Vol.10 No.5

This study was carried out to evaluate the structural stability of hybrid type fan heater. The evaluation of structural safety of hybrid fan heater was conducted by using Ansys Workbench and CFX-11 under the design condition. The hybrid fan heater was operated by heat transfer for heat source supplied from electric heater and combustion gas. According to result of structural analysis, the maximum equivalent stress of hybrid fan heater was 150㎫ when the temperature of heat transfer fluids was 150℃. It was found that the hybrid fan was structurally safe because the value of maximum equivalent stress was smaller than that of yield stress of the material.