근적외선 투과 분광분석법을 이용한 가향액 중 가향제 분석

한정호,정한주,양범호,이문수,김용옥,Han, Jung-Ho,Jung, Han-Joo,Yang, Burm-Ho,Rhee, Moon-Soo,Kim, Yong-Ok 한국연초학회 2006 한국연초학회지 Vol.28 No.2

It is very important to add uniformly casing materials on tobacco for taste and flavor. However, analysis of casing materials was spent much time, effort and money. The object of this study was the development of a rapid method for the determination of glycerine, propylene glycol(PG), sucrose, glucose, fructose and water in the casing materials using the NIR transmittance method. Hundreds of calibration samples, with extended ranges (50%, 75%, 100%, 125%, and 150% of standard addition) in each constituent, were prepared in the casing materials at the various temperatures $(25^{\circ}C\;and\;30^{\circ}C)$. Calibration equation was developed by modified partial least square (MPLS) method using second derivative. The standard error of calibration and $R^2$ between added value and NIR estimated value results were $0.007{\sim}0.034\;and\;0.996{\sim}1.000$ for the casing sample set, respectively. The standard error of prediction and R2 between added value and NIR estimated value results were $0.010{\sim}0.034\;and\;0.997{\sim}1.000$ for the casing sample set, respectively. The analysis result was not different significantly between the NIR and added value. These results show that the NIR measurement system is an effective tool to ensure quality on the casing materials.

유역단위 유출 모형 별 기저유출 분석 기법 검토

한정호,류태상,임경재,정영훈,Han, Jeong Ho,Ryu, Tae Sang,Lim, Kyoung Jae,Jung, Young Hun 한국농공학회 2016 한국농공학회논문집 Vol.58 No.4

Streamflow is composed of baseflow and direct runoff. However, most of streamflow during dry seasons depends on baseflow. Thus, baseflow analysis is very important to simulate streamflow of dry seasons. Generally, baseflow analysis is conducted using watershed-scale runoff models due to diffilculty of measuring baseflow. However, it is needed to understand and review how the model simulates baseflow because each model uses inherent baseflow analysis techniques. In this study, SWAT, HSPF, PRMS-IV were reviewed focusing on baseflow and soil water. HSPF and PRMS-IV calculate baseflow using the variables which depends on user, so the baseflow analysis results of HSPF and PRMS-IV are not consistent. Moreover, soil structures which were assumed from HSPF and PRMS-IV, since these two models assume soil structure as two soil zones and three conceptual reservoirs, were not enough to describe real soil structure. On the other hand, baseflow in SWAT is calculated using baseflow recession constant which can consider the characteristics of aquifer and also, soil structure in SWAT is similar to real soil structures. Thus, baseflow analysis result from SWAT was concluded as the most suitable and reliable model because SWAT can reflect the characteristics and soil structure which is close to reality.

소유역 별 기저유출 감수상수를 적용한 유량 및 기저유출 모의

한정호,임경재,정영훈,Han, Jeong Ho,Lim, Kyoung Jae,Jung, Younghun 한국농공학회 2017 한국농공학회논문집 Vol.59 No.6

This study attempted to improve the accuracy of streamflow and baseflow prediction of Soil and Water Assessment Tool (SWAT) by applying baselfow recession constants for each sub-watershed. This study set two different scenarios (S1 and S2) to evaluate the impact of application of baseflow recession constants for each sub-watershed on streamflow prediction. In S1, Only the baseflow recession constant obtained from the streamflow station located in the final outlet of study area was applied for whole sub-watersheds. In S2, baseflow recession constants obtained from six different streamflow stations were applied for each sub-watershed. Then, baseflow was separated form the measured streamflow data and the predicted streamflow of S1 and S2 using Web-based Hydrograph Analysis Tool (WHAT). The results showed Nash-Sutcliff efficiency (NSE) and $R^2$ of S2 were a little higher than these of S1 in both streamflow and baseflow prediction results. However, it is important that S2 reflected physical meaning of baseflow recess. Also, recession part of hydrograph in S2 was calibrated better than that of S1 compared to the measured hydrograph.

낙동강 수계에서의 하천유량 변동성과 기저유출 기여도의 관계 분석

한정호,임경재,정영훈,Han, Jeong Ho,Lim, Kyoung Jae,Jung, Younghun 한국농공학회 2016 한국농공학회논문집 Vol.58 No.1

More severe and frequent flood and drought have increased the attentions on the river management. In particular, baseflow is an important element among many streamflow characteristics because streamflow is mainly consisted of direct runoff and baseflow. In this regard, this study attempted to analyze the relationship between streamflow variability and baseflow contributions on Nakdong river basin. For this, two Streamflow Variability Indices (SVI) were used: Coefficient of Variation (CV) and Coefficient of Flow Regime (CFR). Furthermore, baselow separation was individually conducted by three methods (PART, WHAT and BFLOW), and based on this, Baseflow Index (BFI) was calculated. Also, we used the daily streamflow data retrieved from 27 gauge stations in Nakdong river basin for baseflow separation. The results showed that BFI calculated by three models ranges from 0.14 to 0.90 for 27 gauge stations. For SVI, BFI has much higher correlation with CV than with CFR. Also, the inversely proportional relationship between BFI and CV showed that higher baseflow contribution, less streamflow variability.

마산저수지의 어류 종조성 및 생태 지표 특성 분석

한정호 ( Jung Ho Han ),이의행 ( Eui Haeng Lee ),안광국 ( Kwang Guk An ) 한국하천호수학회(구 한국육수학회) 2009 생태와 환경 Vol.42 No.2

본 연구는 2008년 11월에 마산저수지를 대상으로 어류 종조성 및 섭식길드 및 오염내성길드에 따른 생태지표 특성을 분석하고, 이와 연관된 화학적 수질 특성 변화를 분석하였다. 채집된 어류는 총 12종(6과)으로 나타났고, 주요 우점종은 피라미, 치리, 참붕어 등으로 나타났다. 한국 고유종은 3종만이 출현하였으며, 외래도입종은 떡붕어 1종이 출현하였다. 생태지표 특성 분석에 따르면, 내성종 및 잡식종의 상대풍부도는 각각 98%로 단연 우점하는 것으로 나타나, 이화학적 질적저하 및 물리적 서식지 교란요인에 의한 영향을 반영하고 있었다. 호안에 따른 종분포 특성 분석 결과, 정수식물이 발달한 호안에서 대부분의 어류가 95% 이상이 채집된 것으로 나타났다. 또한 하상 기질 특성에 따른 분석 결과, 뻘(Silt)로 된 구간에서 가장 많은 종(11종, 91.7%)이 채집되어, 하상기질에 따라 유의한 차이를 보이고 있었다. 화학적 수질자료 분석에 따르면, 호수 영양상태 지표인 총인(TP) 및 Chl-a의 농도는 모두 과영양상태인 것으로 나타났으며, 호수의 유기물오염의 지표로 사용되는 COD도 평균 10.9 mg L-1로 나타났다. 마산저수지의 이러한 수질저하는 어류의 섭식구조(잡식종의 증가) 및 내성종의 증가 등을 통해 반영되었다. 향후 마산저수지의 어류상 및 어류 종조성이 향상을 위해서 수질 개선 및 서식지 복원이 필요할 것으로 사료된다. In this study, we analyzed fish compositions and ecological characteristics such as trophic guilds and tolerance guilds in association with water quality characteristics in Masan Reservoir during November 2008. Total number of species were 12 species (6 families) and the dominant species were Zacco platypus, Hemiculter eigenmanni, and Pseudorasbora parva. We found three Korean endemic species and one exotic species, Carassius cuvieri. According to the analysis of ecological indicator characteristics, relative proportion of tolerant and omnivore species was 98% of the total indicating that probably, the fauna was influenced by physical habitat disturbance and physicochemical degradations. Fish distribution analysis along with littoral zone showed that the most fishes (~95%) were observed in the littoral zone where emerged macrophytes were well developed. Also, substrate analysis indicated that the most species were found near silt area (11 species, 91.7%), so that the significant differences were found between the substrate types. Analysis of water quality indicated that concentrations of total phosphorus (TP) and chlorophyll-a (Chl-a) as a lake trophic indicator were judged as eutrophic states, respectively and COD as an indicator of organic matter pollution averaged 10.9 mg L-1. Based on the water quality, this system were influenced by the nutrient enrichments and organic matter. The degradations of water quality in Masan Reservoir resulted in trophic compositions of fish (increase of omnivore species) and the dominance of tolerant fish. This Monitoring data may contribute changes of fish fauna and compositions in relation to habitat modifications and chemical water quality degradations in the future.

온라인과 오프라인 커뮤니케이션 상황이 공중 세분화 변인에 미치는 영향에 관한 연구

한정호 ( Jung Ho Han ),박노일 ( Noh Il Park ),정진호 ( Jin Ho Jung ) 한국지역언론학연합회 2007 언론과학연구 Vol.7 No.1

인터넷 이용의 보편화는 조직체를 둘러싼 공중의 형성과 변화에 영향을 미치고 있다. 지금까지의 인터넷 PR 연구들은 온라인 커뮤니케이션을 통해 형성될 수 있는 공중에 대한 명확한 이해 없이 단순히 홈페이지를 분석하거나, 웹사이트 운영자에 대한 인터뷰 연구 등에 그치고 있다. 본 연구는 그루닉이 제시한 상황이론을 바탕으로 동일한 이슈에 대해 오프라인과 온라인의 커뮤니케이션 과정이 공중 세분화 변인과 관련 정보추구행동에 어떠한 영향을 미치는지 알아보고자 했다. 이를 위해 ``혼전동거`` 이슈를 중심으로 온라인과 오프라인 커뮤니케이션 상황에 따라서 공중 세분화의 변인인 제약인식, 문제인식, 관여도, 그리고 정보처리행동에 어떠한 차이를 보이는지 실험연구를 통해 분석하였다. 연구결과 오프라인에 비해 온라인 상황에서 공중들의 제약인식은 약해지는 반면 문제의식과 관여도가 높아졌다. 또한 온라인 상황에서 더욱 더 적극적인 정보추구행동을 보이며, 관여도가 높고, 제약인식은 낮은 동시에 문제를 중요시 인식하는 경향 보이는 활동 공중의 비율이 오프라인에 비해 크게 차이가 남을 밝혔다. 본 연구의 결과는 온라인 상황에서 특정 쟁점을 중심으로 공중이 보다 쉽게 활동 공중으로 변질될 수 있으며, 이들이 현실 공간의 활동 공중으로 이어질 수 있음을 시사하고 있다. Since the rising of internet, it influences the public relations of organization. Previous internet PR researchers simply analyzed web pages or characteristics of their users through interview, without any specific definition of internet users and online public. The purpose of this study is to examine the differences of situational variances in real space and cyber space, how the public in these different spaces are segmented and changed when the public face and communicate with the same issue (premarital cohabitation) based on situational theory which was proposed by James Grunig (1983). Through an experimental research, the groups of experiment were divided into two; off-line public and online public, then were analyzed and compared their perceptions on the same issue and communication behaviors. The result shows that the online public is highly engaged with "recognition of problem" and level of involvement and lower `constraint recognition than the off-line public. Moreover, online public show more active communication and behavior to seeking information. Furthermore, the result unveils that the online public group has more ``active public`` that is a combinational variances of situational theory than off-line public group. Development of internet has divided the world into reality and virtual reality, these two spaces are different, but exist at the same time. The borderline of cyber space and real space are getting ambiguous. Thus, ratio of the active public is higher in cyber space than real space and online active public has more possibility to become the active public in real world.

병렬 능동전력필터 위치에 따른 전기철도 AT급전 시스템의 전기품질 비교

한정호(Jung-Ho Han),박한얼(Han-Eol Park),송중호(Joong-Ho Song) 한국조명·전기설비학회 2011 조명·전기설비학회논문지 Vol.25 No.8

This paper presents a power quality compensation of the autotransformer-fed railway system using Matlab/SimPowerSystem and especially investigates two installation methods of the shunt active power filter (SAPF) along the autotransformer-fed railway systems; one configuration describes the SAPF installed at the substation and the other is the SAPF at the sectioning post. Also, the novel SAPF control algorithms based on the synchronous reference frame are proposed. A comparative study on two SAPF configurations and the corresponding control algorithms is investigated comprehensively through the case study.

국정감사 및 조사제도의 문제점과 개선방안

한정호(Han, Jung Ho) 서강대학교 법학연구소 2017 서강법률논총 Vol.6 No.2

87년 헌법개정 이후 국정감사 및 조사제도는 30년간 시행되어 왔다. 30여년간 실시하면서 국정감사나 국정조사의 실효성에 대해 비판을 받아 왔다. 「국정감사및조사제도에관한법률」을 근거로 하고 있는 국정감사 및 조사제도의 문제점으로는 대통령제하의 여당의원의 지위의 구조적 모순을 지적한다. 국회에서의 여당의원의 행정부 감시, 견제하는 역할과 대통령과 함께 국정을 운영하는 국정운영의 주체로서의 역할 가운데 서있기 때문이다. 효과적인 국정감사가 이루어지지 않는 이유로는 과다한 피감사기관의 수와 모든 감사를 할 수 있는 감사일자의 부족을 들 수 있다. 또한 국회의원의 전문성부족은 국정감사과 정책의 장이 아닌 ‘정쟁의 장’이 되어버린다. 「국회에서의증언·감정에관한법률」을 근거로 한 문제점으로는 서류제출에서의 문제점과 증언·감정에서의 문제점으로 나눌 수 있다. 서류제출에 대한 문제점은 다른 법률과의 충돌문제, 행정기관의 부실자료 관리, 국회의 과다한 자료제출 요구를 들 수 있고, 증언·감정에서의 문제점은 증인의 불출석에 대한 제재의 실효성 미흡, 증인의 과다 선정, 증인 선정시 소수당의 의견 미반영을 들 수 있다. 국회에서 매년 정기적으로 국정전반에 관하여 실시하는 감사를 하는 국정감사, 특정한 국정사안에 대하여 실시하는 조사인 국정조사는 「국정감사및조사에관한법률」과 「국회에서증언및감정에관한법률」의 법률을 근거로 하고 있다. 두 법률의 내용의 분석을 한 후, 그에 대한 문제점을 분석하고 개선한다면 국정감사나 국정조사의 제도의 목적에 부합한 실질적 효과가 증대 될 것이다. 또한 각 법률조항들의 개정은 기존제도를 살리고 더 나은 제도의 발전으로 향하게 할 것이다. Since the amendment of the Constitution in 1987, the state inspection and investigation system has been in operation for 30 years. It has been criticized over the past 30 years for the effectiveness of the state inspection and the investigation of the state affairs. The problems of the state inspection and investigation system based on the "Act on the Inspection and Investigation of the National Assembly" point out the structural contradiction of the status of the ruling party under the presidential system. This is because the ruling party stands in the role of monitoring and controlling the administration of the ruling party in the National Assembly and its role as the main body of the state administration that runs the state together with the president. The reason why effective state audits are not conducted is the number of excessive auditees and the lack of an auditable date for all audits. In addition, the lack of professionalism of the members of the National Assembly becomes ‘A Place of Struggle’, not a chapter of the state audit and policy. Problems based on the "Act on Testimony and Appraisal in the National Assembly" can be divided into problems in document submission and problems in testimony and appraisal. The problem with the submission of documents is that of conflicts with other laws, management of insolvent data by administrative agencies, and excessive demands for submission of documents by the National Assembly. The problem in the testimony and the appraisal is that the sanction of the witness is not effective and the witness is over-selected, and the minority party"s opinion is not reflected when the witness is selected. The inspection of the National Assembly, which is conducted by the National Assembly regularly every year on the general affairs of the National Assembly, and the inverstigation of National Assembly on specific matters of state, is based on “the Act on the Inspection and Investigation of the National Assembly” and “the Act on the Testimony and Appraisal of the National Assembly”. After analyzing the content of the two laws, analyzing the problems and finding, and improving the improvement points, the actual effect will be increased in accordance with the purposes of the state inspection or the state investigation system. In addition, amendments to each of the legal provisions will lead to the development of existing institutions and the development of better institutions.

고립성 폐결절로 나타난 기관지폐포암의 임상적 고찰

한정호 ( Jung Ho Han ),김호철 ( Ho Cheol Kim ),천은미 ( Eun Mee Cheon ),서지영 ( Gee Young Suh ),정만표 ( Man Pyo Chung ),김호중 ( Ho Joong Kim ),권오정 ( O Jung Kwon ),이종헌 ( Chong H. Rhee ),한용철 ( Yong Chol Han ),이경수 ( Ky 대한결핵 및 호흡기학회 1997 Tuberculosis and Respiratory Diseases Vol.44 No.2

미토콘드리아 호흡연쇄 복합체 결함이 동반된 난치성 소아 뇌전증에서의 Zonisamide 부가 요법

한정호(Jung Ho Han),이선호(Sun Ho Lee),이하늘(Ha Neul Lee),김세희(Se Hee Kim),강훈철(Hoon Chul Kang),이준수(Joon Soo Lee),김흥동(Heung Dong Kim),이영목(Young Mock Lee) 대한소아신경학회 2016 대한소아신경학회지 Vol.24 No.3

Purpose: Zonisamide (ZNS) is a broad-spectrum antiepileptic drug (AED). Free radical scavenging is also a possible action mechanism of ZNS. As oxidative stress plays an important role in the pathogenesis of mitochondrial cytopathy, we studied the efficacy and safety of ZNS as possible long-term adjunctive therapy in intractable childhood epilepsy with mitochondrial respiratory chain complex (MRC) defects. Methods: MRC defects were confirmed by biochemical assays with muscle biopsies. We evaluated seizure frequencies and adverse effects in 38 childhood epilepsy patients with MRC defects who were maintained on ZNS for at least 12 months. Patients with more than 50% seizure reduction after 12 months were defined as responders. Results: As for clinical diagnosis of mitochondrial cytopathy, 13 cases (34.2%) were diagnosed as Leigh syndrome and the remaining 25 (65.8%) had uncategorized mitochondrial cytopathy with nonspecific encephalopathy. The response rates for each seizure type after 12 months of ZNS therapy ranged from 23.1 to 55.6%; partial seizures (55.6%; 10/18), absence seizures (50.0%; 2/4), tonic-clonic seizures (40.0%; 2/5), atonic seizures (36.4%; 4/11), spasms (33.3%; 2/6), tonic seizures (31.8%; 7/22) and myoclonic seizures (23.1%; 3/13). The response rate for epileptic syndromes such as West syndrome and Lennox-Gastaut syndrome after ZNS treatment are 33.3% and 55.6% respectively. Somnolence, irritability, anorexia and weight loss were noticed as adverse effects, but all were transient. Conclusion: ZNS could be an effective and safe candidate for adjunctive therapy in intractable childhood epilepsy with MRC defects. It could be considered preferentially for its free radical scavenging effect. 목적: Zonisamide (ZNS)는 넓은 치료 범위의 항경련제이며, 유리기의 해독효과는 ZNS의 중요한 작용기전이다. 미토콘드리아 세포병증의 발병 기전에서 산화적 스트레스가 중요한 역할을 하기 때문에, 우리는 미토콘드리아 호흡연쇄 복합체 결함을 동반한 난치성 소아 뇌전증 환자에서 장기적인 항경련제 부가요법으로서 ZNS의 치료 효과와 안전성에 대하여 후향적 연구와 분석을 시행하였다. 방법: 미토콘드리아 호흡연쇄 복합체 결함이 확인된 난치성 소아뇌전증 환자 중에서 최소 12개월 동안 ZNS 복용을 지속하였던 38명의 환자들을 대상으로 경련 횟수와 약물 부작용을 평가하였다. ZNS 복용 12개월후 50% 이상의 경련 감소를 보인 환자를 약물 반응군으로 정의하였다. 결과: 전체 환자군에서 Leigh 증후군은 13례(34.2%)이었고, 나머지 25례(65.8%)는 비특이적 뇌병증을 동반한 분류되지 않은 미토콘드리아 세포병증이었다. 생화학적 분석에서 미토콘드리아 호흡연쇄 1번 복합체 결함이 27례(71.0%)이었고, 4번 복합체 결함이 11례(29.0%)였다. ZNS 치료 후 각 경련의 종류는 23.1-55.6%에서 50% 이상 빈도가 감소하였다. 부분 경련은 55.6% (10/18), 결신 경련은 50.0%(2/4), 강직-간대 경련은 40.0% (2/5), 탈력 경련은 36.4% (4/11), 연축은 33.3% (2/6), 강직 경련은 31.8% (7/22), 근간대성 경련은 23.1%(3/13)에서 50% 이상 빈도가 감소하였다. West 증후군과 Lennox-Gastaut 증후군 환자군에서의 ZNS 치료의 약물 반응군은 각각 33.3%과 55.6%이었다. ZNS 부작용으로는 졸림, 보챔, 식욕부진, 체중감소가 확인되었으나 모두 일시적이었다. 결론: 미토콘드리아 호흡연쇄 복합체 결함을 동반한 난치성 소아뇌전증에서 ZNS는 항경련제 부가 요법으로서 효과적이고 안전한 약물로 사용될 수 있을 것이다. 미토콘드리아 세포병증을 동반한 뇌전증에서의 발생 기전을 고려하면, 유리기 해독효과를 가진 ZNS의 투여가 먼저 고려될 수도 있다.