건설폐기물 분야에 있어서 이물질 분리 선별 기술

이준호,이종구,기형호,Lee, Jun-Ho,Lee, Chong-Gou,Ki, Hyung-Ho 한국건설순환자원학회 2015 한국건설순환자원학회지 Vol.10 No.3

홉스의 『시민론』과 『인간론』을 중심으로 본 인권과 전쟁의 권리

이준호 ( Jun-ho Lee ) 서양근대철학회 2018 근대철학 Vol.12 No.-

이 글은 고 이준호 박사의 유고논문이다. 저자가 세운 이 글의 목적은 분명하다. 홉스 연구자들이 『리바이어던』을 main text로 삼고 있는 것에서 벗어나 『시민론』과 『인간론』의 중요성에 주목하고 있다. 필자는 홉스의 시민론을 직접 우리말로 번역한 바 있다. 이 번역 작업을 통해 시민론에 대한 깊은 이해와 성찰을 바탕으로 홉스 정치철학을 새롭게 해석할 가능성을 모색하고 있다. 그가 주목한 새로운 해석이란, 『시민론』에서 홉스는 전쟁을 적극적으로 반대하고 있다는 사실과 신민들의 인권 보호와 복지 증진을 위해 군주가 져야할 자연적 의무가 있다는 것을 보여주는 일이다. 또 최고통치권자에게 복종해야만 하는 근거는 통치권자 자신이 소유한 힘에 대한 ‘공포’에 있지 않고, 실정법을 위반했을 때 받게 되는 처벌의 공포에 무게 중심을 두고 있다. 3절에서 필자는 국가의 두 기원, 동의와 정복에 관해 분석하고 있다. 이 절에서 필자는 실질적 사회계약론에 대해 의문을 제기하고 있다. 애초 국가는 자연발생적으로 시작되었으며, 최고 통치권자의 자의적 통치를 견제하기 위해 신민들과 계약을 맺게 된 것이라는 필자의 해석이다. 4절에서 필자는 시민론의 열 번째 자연법에 주목하고 있다. 공정성, 즉 차별하지 말라는 자연법의 명령은 국가의 평화와 안위를 위해서 통치권자가 지켜야 할 덕목이라는 것이다. 특히 분배의 공정성을 유지하는 일이 통치권자의 의무이다. 5절은 통치권력의 절대성과 복종에 대해 설명하고 있다. 정당화된 권력은 국가의 안전을 위해 신민들의 사생활까지 감시할 수 있어야 한다고 주장한다. 당연히 오늘날의 시각에서 보면 인권침해의 위험이 있지만 홉스 당시에는 문제가 되지 않는다. 그러나 홉스는 부당한 권력에 대해서는 자발적 복종의 의무를 배제하고 있다. 통치권자도 양심과 자연법에 따라 통치할 때만 권력은 정당화되며, 신민들의 자발적 복종을 얻을 수 있다. 6절에서 필자는 자연법을 위반한 통치권자에 대한 전쟁의 권리에 대해 설명하고 있다. 신민을 적으로 만든 통치권자는 그 권력의 정당성을 상실하게 되고, 신민들은 통치권자를 향해 전쟁의 권리를 회복하게 된다는 것이다. 챨스 1세의 처형이 이에 해당된다. 결론에서는 홉스의 정치철학사적 위치를 다시 규정하고 있다. 홉스는 절대왕권주의를 지지하면서도 주권재민론의 선구자로서의 자리매김을 하고 있다. This is a paper by Dr. Lee Jun-ho who died a few years ago. The purpose of this article is clear. Dr. Lee suggests that Hobbes researchers should pay attention to the importance of De Cive and De Homine, not to consider Leviathan as the main work of Hobbes. He translated Hobbes’ De Cive and De Homine into Korean. Through this translation work, he was looking for a possibility to interpret Hobbes’ political philosophy based on deep understanding and reflection on civil theory. The new interpretation he notices is that Hobbes is actively opposed to war in the De Cive and shows that there is a natural obligation of the monarch to protect the human rights and welfare of the people. The author emphasizes that the reason for submitting to the supreme ruler is not the “fear” of the powers held by the ruling power, but the fear of punishment in violation of the law. In section 3, the author analyzes the origins of consent and conquest. In this section, he questions the actual social contract theory. It is his interpretation that the country originally started spontaneously and that it had entered into a contract with the people to check the arbitrary rule of the supreme ruler. In section 5, the author explains the absoluteness and obedience of ruling power. He maintains that justified power has to monitor the privacy of the people for the sake of national security. Of course, from today’s point of view there is a risk of human rights violations, but it is not a problem at the time. However, Hobbes excludes the obligation of voluntary obedience to unjust power. Only when the ruling power is governed by conscience and natural law, power is justified and the voluntary obedience of the people can be obtained. In section 6, the author explains the right of war to the rulers who violate natural law. The rulers who have made the enemies of the people lose the legitimacy of their power, and the people will regain the right of war to the rulers. This is the execution of Charles I. In conclusion, the author redefines the historical location of Hobbes’s political philosophy. According to the author, Hobbes has always been a pioneer of sovereignty, while supporting absolutism.

Experimental Evaluation of Q-Parameterization Control for the Imbalance Compensation of Magnetic Bearing Syatem

이준호,김현기,이정석,이기서,Lee, Jun-Ho,Kim, Hyeon-Gi,Lee, Jeong-Seok,Lee, Gi-Seo 대한전기학회 1999 전기학회논문지A Vol.48 No.3

This paper utilizes the method of Q-parameterization control to design a controller which solves the problem of imbalance in magnetic bearing systems. There are two methods to solve this problem using feedback controal. The first method is to compensate for the imbalance forces by generating opposing forces on the bearing surface (imbalance compensation). The second method is to make the rotor rotate around its axis of inertia (automatic balancing);in this case no imbalance forces will be generated. In this paper we deal with only imbalance compensation. The free parameter of the Q-parameterization controller is chosen such that these goals are achieved. After the introduction of a model of the magnetic bearing system, we explain the Q-parameterization controller design of the magnetic bearing system with emphasis on the rejection of sinusoidal disturbance for imbalance compensation design. The design objectives are formulated as a linear equations in the controller free paramete Q. Finally, simulation and experimental results are presented and showed the robustness and effectiveness of the proposed controllers.

2001년 경상북도에서 발생한 콜레라 유행에 관한 역학조사

이준호,이관,김준철,이상원,고운영,양병국,이종구,김문식,임현술,Lee, Jun-Ho,Lee, Kwan,Kim, Jun-Chul,Lee, Sang-Won,Go, Un-Yeong,Yang, Byung-Kuk,Lee, Jong-Koo,Kim, Moon-Sik,Lim, Hyun-Sul 대한예방의학회 2002 예방의학회지 Vol.35 No.4

Objectives : This study was carried out to investigate the cause, magnitude and transmission route of the cholera outbreak in 2001 Methods : The study population were those persons who ingested foods at the restaurant, were confirmed as cholera patients, had symptoms of diarrhea and sewed as workers at the restaurant. A questionnaire survey and microbiological examinations on the microbes isolated from rectal swabs were conducted. Of the cases, 316 food histories were surveyed by an analysis of the restaurant menu. Results : There were 139 confirmed cases of cholera reported in Korea in 2001. Of these, 104 were related to the restaurant. By region, Gyeongsangbuk-do had the highest incidence with 91 cases. Of these 91 cases, 74 had ingested foods at the restaurant, 2 were employees and 3 were secondary infection cases within the families. The results of the odds ratio analysis of the 316 persons having ingested foods at the restaurant were as follows: sandwiches 5.07 (95% CI, 1.85-14.59), soybean curd 2.45 (95% CI, 1.09-5.56), noodles 2.34 (95% CI, 1.24-4.42), steamed squid 2.01 (95% CI, 1.17-3.47) and vinegared rice 1.82 (95%, CI, 1.08-3.09). It was certain the restaurant in question was the cause of the 2001 outbreak. Conclusions : We suspected that more than one restaurant employee contaminated foods served at the restaurant. In addition, eating raw fishes purchased at the Pohang Fisheries infected the employees of the restaurant. There is a possibility that these raw fishes were themselves contaminated by cholera bacilli in the sea.

종양응급 상황에서의 방사선치료의 역할

이준호,백홍석,박상섭,박현숙,이석호,Lee, Jun-Ho,Baek, Hong-Seok,Park, Sang-Sub,Park, Hyun-Suk,Lee, Seok-Ho 한국임상보건과학회 2014 한국임상보건과학회지 Vol.2 No.2

Purpose. Radiation therapy for oncologic emergencies is an important modality in the management of cancer patients. The aim of the present study was to review the roles of RT in oncologic emergencies based on literature review. Methods. The oncologic emergencies requiring rapid treatment include superior vena cava syndrome, spinal cord compression, brain metastasis, and bone metastasis. We reviewed the literatures on the pathophysiology, diagnosis, and treatment of oncologic emergencies. Results. In this literature review, radiation therapy among treatment modalities for oncologic emergencies has been shown to be fast and very effective treatment modality for oncologic emergencies. Conclusions. Based on this review, we conclude that the literature provides support for the role of radiation therapy in the situation of oncologic emergencies. As the number of cancer patients increase, the prevalence of oncologic emergencies will increase. In the future, the development of RT techniques will provide the improvement of not only patient's quality of life but also the survival.

전통시장 시설현대화사업이 전통시장 활성화에 미치는 영향 분석

이준호(Lee, Jun-Ho),김영(Kim, Yeong),김경훈(Kim, Kyoung-hun) 한국지역개발학회 2013 韓國地域開發學會誌 Vol.25 No.1

After full opening of distribution market in 1996, its competitiveness was lost and declined due to the emergence of a variety of distribution types, change of customers consumption habits, and purchase patterns. Therefore, Korean government began to support the modernization projects of traditional markets through the establishment of law for the activation of existing traditional markets. In this regard, this study attempts to diagnose the problems of facility modernization projects through substantial and concrete effect analysis on facility modernization projects to provide the activation methods effectively. To achieve this goal, we analyzed the overall satisfaction and substantial effect of facility modernization projects for traditional markes by carrying out questionnaire surveys on merchants at Jun-gang Yudeung Market in Jinju. As a result of questionnaire survey, customers were generally satisfied with the facility modernization project, the market environment was improved and the customer numbers and sales amount which show the actual improvement also increased after implementing the projects. Also, it was proved that customer numbers and the sales amount after the facility modernization project of traditional markets increased and the degree in the increase was low level of 5~20%. Therefore, it was analyzed that sub-project items of the facility modernization project, which have a significant effect on the activation of traditional markets, had a low level of influence.

임플란트 직경이 골유착에 미치는 영향에 관한 연구

이준호,신상완,권상호,Lee Jun-Ho,Shin Sang-Wan,Kwon Sang-Ho 대한치과보철학회 2003 대한치과보철학회지 Vol.41 No.2

Statement of problem : The survival rate of wide diameter implants was lower than of 3.75-mm implants in some clinical researches. Purpose : The purpose of this study was to investigate the influence of implant diameter on the osseointegration of implants in the rabbit femoral condyle and tibial metaphyses by means of removal torque measurements and histomorphometric analysis. Material and Method : Ten adult New Zealand White rabbits were used in this study Two 3.75-mm diameter implants were inserted through one cortical layer in the tibial metaphyses and one 3.75-mm diameter implant was inserted in the femoral condyle. 5.0-mm diameter implants were inserted in the other leg in the same manner. A total of 60 implants (3.75-mm diameter implants:30 : 5.0-mm diameter implants:30) were installed. After a healing time of 4 and 12 weeks, the peak removal torque values required to shear off the implants were recorded. From the removal torque values (Ncm) obtained, the mean shear stress ($N/mm^2$) was calculated. And the percentage of direct bone-to-implant contact and the percentage of bone area inside the thread were measured by Kappa Image Base-metreo. The Student's t-test was undertaken for statistical analysis (p<0.05). Results : The removal torque value of 5.0-mm diameter implants was higher than of 3.75-mm diameter implants (p<0.05). The difference of shear stress value between 3.75-mm and 5.0-mm diameter implants was not statistically significant (p>0.05). The percentage direct bone-to-implant contact had no statistical difference between two groups (p>0.05). The percentage of bone area inside the thread had no statistical difference between two groups (p>0.05). Conclusion It is concluded that the quality f osseointegration is not influenced by increasing implant diameter.

공기분사공정에 의한 유류오염대수층의 TPH, $CO_2$, VOCs 변화 특성

이준호,박갑성,Lee, Jun-Ho,Park, Kap-Song 한국지하수토양환경학회 2006 지하수토양환경 Vol.11 No.6

공기분사공정법은 포화대수층에 존재하는 유기화합오염물질들을 대기로부터 주입된 공기에 의해 불포화층으로 휘발시켜 제거하는 기술을 말한다. 이 연구의 목적은 TPH 10,000 mg/kg(액상 TPH 1,001 mg/L)으로 오염시킨 사질 포화대수층에 공기를 주입 하였을 때 불포화 토양층, 대기층에서 발생되는 이산화탄소, 휘발성유기화합물의 농도와 포화대수층(TPH) 농도 변화에 관한 특성 연구이다. 36일 동안 공기를 주입한 결과, 실험 반응조의 평형온도는 $24.9{\pm}1.5^{\circ}C$이었다. 포화대수층(공기 확산기 근처 C10 지점)에 녹아있는 TPH 농도는 초기주입 농도의 66.0%가 제거되었다. 대기중(C70 지점)에서 측정된 $CO_2$ 질량은 3,800 mg이였고 불포화 토양층(C50 지점)에서 측정된 $CO_2$의 질량은 3,200 mg이였다. 대기중(C70 지점) 및 불포화 토양층(C50 지점)에서 생성된 VOCs 속도상수는 각각 0.164/day, 0.187/day이였다. Air Sparging (IAS, AS) is a ground-water remediation technique, in which organic contaminants are volatilized into air as they rise from saturated to vadose soil zone. This study was conducted to investigate the variation characteristics of TPH, VOCs and $CO_2$ for air sparging of diesel contaminated saturated soil. Initial TPH concentration was 10,000 mg/kg for saturated soil phase and 1,001 mg/L for soil aquifer phase. After 36 days of air sparging, the equilibrium temperature of 2-Dimension experiment system was $24.9{\pm}1.5^{\circ}C$. The saturated soil TPH concentration (in the C10 port close to air diffuser) was reduced to 66.0% of the initial value. The mass amount of $CO_2$ was 3,800 mg and 3,200 mg in air space (C70 port) and in unsaturated soil zone (C50 port), respectively. The VOCs production kinetic parameter was 0.164/day in the air space (C70 port) and 0.182/day in the unsaturated soils (C50 port).

R.F. Sputtering 방법에 의한 상변화형 광디스크의 $(ZnS)_{1-x}(SiO_2)_x$ 보호막 형성에 미치는 전극거리의 영향

이준호,김도훈,Lee, Jun-Ho,Kim, Do-Hun 한국재료학회 1999 한국재료학회지 Vol.9 No.12

상변화형 광디스크는 직접 반복기록에 의한 고속기록, 고밀도화가 가능하고 높은 전송속도, 재생신호의 C/N (carrier to noise) 비가 좋은 장점을 가지고 있으나 반복되는 열에너지에 의한 디스크의 변형과 소거도의 저하, 기록 반복성의 저하가 문제가 된다. 이러한 반복성의 저하를 개선하기 위해 적절한 디스크의 구조와 기록막의 상하부에 유전체 보호막인 ZnS-$SiO_2$ 박막층을 삽입하였다. 박막 제조시 많은 실험변수의 제어를 위해 다꾸찌 방법을 통하여 타겟 R.F. Power 200W, 기판 R.F. Power 20W, 아르곤 압력 4mTorr, 전극거리 6cm의 최적조건을 얻을수 있었다. TEM과 XRD분석 결과, 전극거리가 가까워질수록 높은 증착속도로 인하여 미세한 조직구조를 가지고 있으며, 일정거리 이상 가까워지면 막의 morphology에 나쁜 영향을 끼침을 알 수 있었다. 이러한 막의 morphology의 영향으로 투과율이 감소하는 것을 확인할 수 있었다. AFM과 SEM분석에서는 전극거리가 가까워질수록 높은 증착속도로 인하여 morphology에 나쁜 영향을 끼치고 있음을 확인할 수 있었다. 최적조건에서 증착한 박막은 우수한 morphology를 가진 초미세구조의 치밀하고 결함이 없는 박막이었다. 이 박막은 상변화형 광디스크에서 열적 변형을 억제하고, 열전도를 감소시켜 우수한 유전체 보호피막의 역할을 할 수 있다. 그리고, 전극거리가 ZnS결정립의 크기와 증착속도, morphology에 미치는 영향에 대해 고찰하였다. Phase-change optical disk very rapid recording, high densification of data, resulting in high feedback rate and good C/N(carrier to noise) ratio of a feedback signal. However, repetitive thermal energy may cause the deformation of a disk or the lowering of an eliminability and a cyclability of the recording. The lowering of the cyclability can be reduced by insertion of thin layer of ZnS-$SiO_2$ dielectric thin film in appropriate disk structure between the upper and lower part of the recording film. Using the Taguchi method, optimum conditions satisfying both the optimized quality characteristic values and the scattering values for film formation were found to be the target R.F. power of 200W, the substrate R.F. power of 20W, the Ar pressure of 6mTorr, and the electrode distance of 6cm. From the refractive index data, the existence of the strong interaction between the electrode distance and Ar pressure was confirmed, and so was the large effect of the electrode distance on transmittance. According to the analysis of TEM and XRD, the closer the electrode distance was, the finer was the grain size due to the high deposition rate. However, the closer electrode distance brought the negative effect on the morphology of the film and caused the reduction of transmittance. AFM and SEM analyses showed that the closer the electrode distance was, the worse was the morphology due to the high rate of the deposition. Under optimum condition, the deposited thin film showed a good morphology and dense microstructure with less defects.

지표면 침적 방사성핵종에 대한 NaI(Tl), LaBr₃(Ce) 및 CeBr₃ 검출기의 MDA 비교 평가

이준호,김봉기,이동명,변종인,Lee, Jun-Ho,Kim, Bong-Gi,Lee, Dong Myung,Byun, Jong-In 한국방사성폐기물학회 2019 방사성폐기물학회지 Vol.17 No.3

본 연구에서는 원자력 사고 또는 방사선 비상 시 지표면에 침적될 수 있는 감마선방출 핵종의 방사능을 신속하게 평가하기 위해 이용될 수 있는 NaI(Tl), $LaBr_3$(Ce) 및 $CeBr_3$ 섬광검출기의 성능을 비교 평가하였다. 검출성능은 최소검출가능방사능(MDA, Minimum Detectable Activity)을 통해 평가하였으며, 각 검출기의 지표면 침적 감마선방출 핵종에 대한 검출효율은 수학적 모델링과 점선원을 이용하여 반실험적으로 산출하였다. MDA 평가를 위한 백그라운드 감마선에너지스펙트럼은 비교적 넓고 평탄한 초지에서 측정되었으며, 원자력 사고 시 방출될 수 있는 주요 핵종에 대한 각 검출기의 MDA를 산출하였다. 그 결과 일반 환경방사능 준위에서 지표면 침적 감마핵종에 대한 각 검출기의 MDA 크기는 대체로"NaI(Tl)> $LaBr_3$(Ce)> $CeBr_3$"로 평가되었으며, 백그라운드 준위가 유사한 에너지 영역에서는 분해능이 가장 우수한 $LaBr_3$(Ce)에서 최소 값을 보였다. 이는 관심 핵종의 감마선에너지 영역에 대한 각 검출기의 자체 및 측정 환경 백그라운드, 측정 효율, 그리고 에너지 분해능 특성을 바탕으로 비교 분석되었다.