RAMS+를 이용한 하천에서 오염물질의 2차원 체류시간 분포 모델링

김준성,서일원,신재현,정성현,윤세훈,Kim, Jun Song,Seo, Il Won,Shin, Jaehyun,Jung, Sung Hyun,Yun, Se Hun 한국수자원학회 2021 한국수자원학회논문집 Vol.54 No.7

With the recent industrial development, accidental pollution in riverine environments has frequently occurred. It is thus necessary to simulate pollutant transport and dispersion using water quality models for predicting pollutant residence times. In this study, we conducted a field experiment in a meandering reach of the Sum River, South Korea, to validate the field applicability and prediction accuracy of RAMS+ (River Analysis and Modeling System+), which is a two-dimensional (2D) stream flow/water quality analysis program. As a result of the simulation, the flow analysis model HDM-2Di and the water quality analysis model CTM-2D-TX accurately simulated the 2D flow characteristics, and transport and mixing behaviors of the pollutant tracer, respectively. In particular, CTM-2D-TX adequately reproduced the elongation of the pollutant cloud, caused by the storage effect associated with local low-velocity zones. Furthermore, the transport model effectively simulated the secondary flow-driven lateral mixing at the meander bend via 2D dispersion coefficients. We calculated the residence time for the critical concentration, and it was elucidated that the calculated residence times are spatially heterogeneous, even in the channel-width direction. The findings of this study suggest that the 2D water quality model could be the accidental pollution analysis tool more efficient and accurate than one-dimensional models, which cannot produce the 2D information such as the 2D residence time distribution.

청소년에서 컴퓨터 작업의 종류와 작업 시간이 눈깜박임 횟수와 안구건조에 미치는 영향

김준성,조경준,송종석.Jun Sung Kim. M.D.. Kyung Jun Cho. M.D.. Jong-Suk Song. M.D. 대한안과학회 2007 대한안과학회지 Vol.48 No.11

Purpose: To evaluate the change in blink rate in adolescents according to the type and duration of computer tasks and to analyze the risk of ocular dryness using an ocular protection index. Methods: Fifteen male high school students played computer games and viewed Internet lectures for 20 minutes each. Blink rate was measured by USB camera, and ocular protection index (OPI, the ratio of BUT to inter-blink interval) was calculated for each subject during the two tasks. In addition, 7 of the 15 subjects played computer games again for 40 minutes on another day, and the change in blink rate according to the duration of computer games was observed. Results: The average blink rate was 5.44±3.29 per minute (median 5, range 2-12.75) while playing computer games and 20.63±11.21 per minute (median 18.25, range 4.93-42.2) while viewing Internet lectures, and this difference was statistically significant (p=0.001). The percentage of subjects with OPI values less than 1 was 53% for computer games and 13% for Internet lectures (p=0.025). While playing computer games for 40 minutes, the mean of total blinks during ten-minute intervals decreased over time: 59.43 times (median 57) during the first 10 minutes, 33.86 times (median 41) during the last 10 minutes. Conclusions: The blink rate in adolescents was significantly lower and the risk of ocular dryness was higher while playing computer games compared with that of viewing internet lectures. As playing time increased, the blink rate decreased and risk of ocular dryness increased.

Calcium sulfate와 혈소판 유래성장인자의 혼합사용이 치주인대세포에 미치는 영향

김준성,최성호,유윤정,채중규,김종관,조규성,Kim, Jun-Seong,Choi, Seong-Ho,Yu, Yun-Jung,Chai, Jung-Kiu,Kim, Chong-Kwan,Cho, Kyoo-Sung 대한치주과학회 1997 Journal of Periodontal & Implant Science Vol.27 No.4

It was well known that calcium sulfate was biocompatible, resorbed rapidly in the body, had potential as a good barrier membrane. Platelet-derived growth factor(PDGF) was one of polypeptide growth factor that had been reported as a biological mediator which regulates activities of wound healing process including the cell proliferation, migration and metabolism. The purpose of this study was to evaluate the effects of a combination of calcium sulfate and PDGF on periodontal ligament cells in vitro to use as a regeneration promoting agent of periodontal tissue. Human periodontal ligament cells were prepared from the premolar tooth extracted for the orthodontic treatment. Cells were cultured in ${\alpha}-MEM$ contained with 20% FBS, at the $37^{\circ}C$, 100% of humidity, 5% $Co_2$ incubator. Cells were inoculated and cultured into 96 well culture plate with $1{\times}10^4cells/well$ of ${\alpha}-MEM$ for 1 day. After discarding the medium, those cells were cultured in ${\alpha}-MEM$ contained with 10% FBS alone(control group), in calcium sulfate(calcium sulfate group), in calcium sulfate treated with 15ng/ml of PDGF-BB(calcium sulfate+PDGF group), in ${\alpha}-MEM$ contained with 10% FBS treated with 15ng/ml of PDGF-BB(PDGF group) for 1, 2, 3 day respectively. And then each group was characterized by examining of the cell counting, MTT assay, collagen synthesis. The results were as follows. 1. In the analysis of cell proliferation by cell counting, both calcium sulfate group and calcium sulfate plus PDGF group showed no stastically significant difference compared to control group, but there was stastically significant difference between PDGF group and calcium sulfate group at 1, 2 day(P<0.05). 2. In the analysis of cell proliferation by MTT assay in calcium sulfate extracts, both calcium sulfate group and calcium sulfate plus PDGF group showed no stastically significant difference compared to control group, but there was stastically significant difference between PDGF group and calcium sulfate group at 2, 3 day, and between calcium sulfate plus PDGF group and calcium sulfate group at 2 day(P<O.05). 3. In the analysis of cell proliferation by MTT assay in transwell, both control group and PDGF group showed stastically significant difference compared to both calcium sulfate group and calcium sulfate plus PDGF group at 1 day, but there was no stastically significant difference compared to both calcium sulfate group and calcium sulfate plus PDGF group at 2, 3 day(P(0.05). 4. In the analysis of collagen synthesis by immunoblotting assay in calcium sulfate extracts, high level was detected on calcium sulfate group at 3 day, on calcium sulfate plus PDGF group at 1 day, on PDGF group at 2 day. On the basis of these results, calcium sulfate was biocompatible on the periodontal ligament cells and might have potential possibility as a vehicle of PDGF in the periodontal tissue regeneration.

BESS를 이용한 태양광 발전의 출력 제어 알고리즘

김준성(Jun-Sung Kim),나의균(Ui-Kyun Na),송재주(Jae-Ju Song),정재성(Jae-Sung Jung) 대한전기학회 2021 전기학회논문지 Vol.70 No.8

In the case of renewable energy, power generation is affected by factors such as the external climate environment. In order to efficiently storage and use of renewable energy, Battery Energy Storage Systems (BESS) are being used. However, BESS faced issues such as fire accident and stability due to lack of optimization operating system. In this paper, we propose a predict system of solar power generation using the ANN(Artificial Neural Network) and an BESS operation scheduling algorithm for BESS optimization. In this paper, we verified the proposed algorithm for real-time output compensation service and BESS operation stability, and we expect to address the safety issues of BESS.

형사소송법상 긴급체포제도에 관한 재검토

김준성(Kim, Jun-Sung) 한국형사법학회 2011 刑事法硏究 Vol.23 No.3

Though the suspect is under no specific suspicion, one will be arrested by an investigation agency. Seemingly illegal, however, it is permitted to do the urgent arrest only if the suspect will be released with the agency winning the written permission and report of a prosecutor, under the current criminal procedural law. The urgent arrest could be preferred and overused because generally the investigation agency places major emphasis on promptness and efficiency in investigating. In the case, a question of human rights infringement might be raised. This article focuses on reviewing on the problem of urgent arrest as mentioned above and submitting as reasonable improvement plans as follows; First, it is required to introduce ex facto custody warrant system if we intend to maintain current urgent arrest system to control the situation after urgent arrest. This makes it possible to fulfill constitutional warrant-requirement principle thoroughly in order to guarantee human rights and prevent the abuse of the investigation power. Secondly, under the current law, after the urgent arrest, a prosecutor should request an arrest warrant for the suspect ‘without delay’, and the period of claim is within 48 hours. However unlike general arrest, it would be required to investigate with promptness in emergency arrest. So, for the period of claim, 36 hours will be reasonable I think. Third, in urgent arrest, the investigation agency should immediately request a prosecutor to issue an arrest warrant. But this kind of procedure could be against the Constitution’s principle of the division of power. In order to utterly guarantee human rights, it will be more appropriate to abolish the system of a prosecutor’s approval and to introduce the system of judiciary approval. With these notions, I suggest that the judicial police directly request an arrest warrant to a judge. It will be necessary to revise a prosecutor’s exclusive right to request an warrant. Fourth, under the current Criminal Procedure, the urgent arrest system is similar to the urgent confinement system in the past, and it could violate the principle of the fundamental rights in the Constitution. Therefore, it would be better to employ the terminology of the urgent confinement system rather than urgent arrest system. Fifth, in respect to construing current law, from the standpoint of protecting the suspect’s rights, it should be considered not to admit additionally examining a suspect by requesting a warrant after being urgently arrested. However, if the suspect is urgently arrested and taken over to a judge under approval of arrest, additional examination could be permitted. The same holds true of a simple filling out an arrest form or doing another excuse for the prompt investigation. Conclusively, the system of urgent arrest could be applied more legitimately and effectively in supplementing ex post facto custody warrant. Considering improper use of urgent arrest power by investigative authorities, the characteristic of the urgent arrest would be interpreted in the middle of-the-road-policy between arresting and detention.

스마트그리드 상호운용성 확보를 위한 CIM 및 OPC-UA 기반 통합 플랫폼 개발

김준성(Jun-Sung Kim),신진호(Jin-Ho Shin),최승환(Seung-Hwan Choi) 한국정보과학회 2014 정보과학회지 Vol.32 No.9

KEPCO 에너지자립형 스마트빌딩 구축 시범사업을 통한 한전의 역할

김준성(Jun-Sung Kim) 대한전기학회 2020 대한전기학회 학술대회 논문집 Vol.2020 No.11

부정청탁금지법의 문제점과 개선방안

김준성 ( Kim Jun-sung ) 영남대학교 법학연구소 2017 영남법학 Vol.0 No.44

지난해 9월 28일자로 발효된 부정청탁금지법(약칭)은 현재 그 입법취지에 따라 엄격하게 시행되고 있는 것으로 생각된다. 그러나 사회적 분위기는 동법의 시행에 따른 경제적 위축과 경기침체 등의 문제로 그 효용성 여부에 대하여 침묵으로서 우려를 하고 있다. 특히 학계에서는 동법의 입법과정에서 공직자의 이해충돌방지 규정이 삭제된 부분에 대하여 유감(遺憾)과 그 적용대상의 범위에 대하여 찬반(贊反)을 명확하게 견지하고 있는 듯하다. 이러한 측면에서 필자는 동법의 문제점을 검토한 후 입법적 관점에서 그 취지에 부합하는 개선방안을 다음과 같이 제안하고자 한다. 첫째, 동법의 입법취지를 고려한다면 동법 제12조의2 규정을 신설하여 공직자등의 이해충돌방지 규정을 추가적으로 입법하는 것이 타당하다고 생각된다. 둘째, 동법의 적용과정에서 해석상 논란을 방지하기 위하여 동법 제1조의2규정을 신설하여 부정청탁의 개념을 명확하게 정의(定義)하여 입법할 필요가 있다. 셋째, 동법 제5조 제2항 제7호에 규정되어 있는 부정청탁이 허용되는 예외사유로서 최종적인 판단기준이 되는 `사회상규`의 개념을 법체계상 관련성 있는 내용으로 대체하는 방안이 타당하다고 생각된다. 넷째, 동법 제8조에서 규제의 대상으로 공직자등의 친족의 범위를 배우자, 6촌 이내의 혈족, 4촌 이내의 인척으로 확대하여 적용하는 방안이 입법취지에 부합한다고 볼 수 있다. 이러한 취지에서 동법 제8조 제2항의 직무관련성 여부의 규정은 삭제되는 것이 타당하며, 또한 동법 제2조의 공직자의 적용대상에서 공공성이 강한 금융, 의료 등의 민간영역까지 확대하여 적용하는 것이 타당하다고 생각된다. 다섯째, 동법 제10조와 관련하여 동법 시행령 제25조(별표 2)의 외부강의 등 사례금 상한액을 다소 상향조정할 필요가 있으며, 이와 같은 취지에서 동법 시행령 제17조(별표 1)의 사교ㆍ의례 등 목적으로 제공되는 음식물ㆍ선물ㆍ경조 사비 등의 가액범위는 과태료 부과의 기준으로서 적정선을 초과하지 않는 범위내에서 일률적으로 동일하게 부과하는 방안이 타당하다고 생각된다. 여섯째, 동법 제23조의 과태료 부과는 관할경찰서를 경유하여 담당 검사가 부과처분하는 것이 타당하며 검사의 과태료 부과처분에 이의신청이 있는 경우에 한하여 검사는 당해사건을 관할법원으로 이송하여 관할법원에서 과태료 재판을 진행하는 방안이 합리적이라고 생각된다. 아울러 동법 제24조의 양벌규정에서 동법 제22조 제1항 제3호와 제23조 제5항 제3호의 경우에 금품 등의 제공자가 공직자등인 경우는 제외되어야 할 특별한 사유가 없다고 본다. 따라서 현행 부정청탁금지법은 필자가 제시하는 바와 같이 그 입법취지에 부합하는 법체계상의 정비가 최대한 빨리 이루어져야 강력한 반부패법(反腐敗法)으로서 실효성이 극대화될 수 있을 것이다. The anti-solicitation act effectuated from September, 28 last year is thought to be being implemented strictly according to the purpose of legislation now. But social atmosphere shows to be silently depressed about the utility due to the economic contraction and recession etc. Especially academia looks unfortunate about the conflict of interest code of public official deleted in the lawmaking process of the same law and looks like keeping pro and con distinctly about its application scope. This author, seeking the problems of the anti-solicitation act, suggests the improvements adequate to the purpose in the law of legislation as follows. First, considered the legislation purpose of the same law, it is reasonable to legislate by newly adding the conflict of interest rule of public official and the like as the second of the twelfth in the same law. Second, to prevent the interpretational difficulty in the applicable process of the same law, it is necessary to legislate in terms of defining the conception of improper solicitation distinctly by newly establishing the second of the first in the same law. Third, as socially accepted rules, the exceptions stipulated in the item 7, para. 2 of the art. 5 in the same law and allowed improper solicitation, is the final judgemental standard, they are thought to proper to be substituted the contents related to the law system. Fourth, it is thought to be rational to apply to expand the scope of relative of public official etc. regulated in the eighth of the same law as objects of regulation to spouse, blood relatives within second cousin, relatives by marriage within cousin. In furtherance of this idea, it is thought to be proper to delete the rules of duty relations in the second of the eighth of the anti-solicitation act and valid to apply to expand applicable object of public officials etc. to the quasi-public private sector of financial workers, medial workers, and the like. Fifth, the reward maximum price of the outside lecture etc. in the twenty fifth of the enforcement ordinance related to the same law is necessary to be adjusted in a lump, and in this purpose the price limit of the expense of the food and drink, gift, and congratulations and condolences etc. given for the purpose of social intercourse, rite, and the like in the seventeenth of the enforcement ordinance of the same law is thought to be valid to charge in a lump and in kind within the range that doesn`t exceed the optimum level as the standard charging a fine. Sixth, charging a fine according to the same law is rational for the prosecutor to charge through the district police station, and in the case of raising of an objection about the disposition of the imposition of fine for negligence by the prosecutor, the competent court notified by the prosecutor is thought to be resonable to proceed the trial of the fine. In addition, in the case of the dual liability of art. 24, the item 3, para. 1 of art. 22 and the item 3 of para. 5 of art. 23 in the same law, the providers of money and valuables are considered not to have a special reason to be excepted even in the case of public official. Accordingly, seen in this position, the anti-solicitation act should only make the arrangement of the law system adequate to the purpose of legislation as a matter of urgency and its effectiveness will be maximized as a powerful anti-corruption act.

스테레오 비전 센서와 레이다 센서 융합을 이용한 표적 탐지

김준성(Jun-Seong Kim),박완희(Wan-Hui Park),윤평화(Pyoung-Hwa Yoon),김병성(Byung-Sung Kim),송림(Reem Song) 한국전자파학회 2020 한국전자파학회논문지 Vol.31 No.11

지능형 운전자 보조 시스템(Advanced Driver Assistance System: ADAS)이 광범위하게 도입되면서 스테레오 카메라를 이용한 물체 감지 및 거리 측정이 필수가 되고 있다. 하지만 스테레오 카메라는 물체와의 거리가 멀어질수록 측정 거리오차가 커지는 문제가 있다. 본 논문에서는 이러한 문제를 해결하기 위해 77 ㎓ 단일채널 FMCW(Frequency Modulated Continuous Wave) 레이다와 비전 센서의 융합시스템을 개발하고, 카메라로 얻은 거리정보를 레이다로 보완하는 표적 매칭 알고리즘을 제안한다. 아울러 역으로 이용하여 영상 데이터를 이용, 단일채널 레이다로는 얻을 수 없는 도래 각 정보를 획득할 수 있음을 보였다. 실험을 통하여 본 시스템과 알고리즘의 타당성을 입증하였다. Stereo cameras have been widely employed for object and range detection in vehicular advanced driver assistance systems. However, camera sensors generally suffer from a lack of accuracy in terms of range detection when targets are further away from the sensors. In this study we present a fusion system composed of a 77 GHz frequency modulated continuous wave (FMCW) radar and a stereo camera, in which range information obtained by the camera is corrected by the radar data, a technique named target matching algorithm. Alternatively, the radar fed by the vision data can be equipped with the direction of arrival information that is not feasible with a single-channel FMCW radar. The measurement shows that the proposed technique is valid and effective.

별건구속의 필요성과 적법성의 판단기준

김준성(Kim, Jun Sung) 한국법학회 2019 법학연구 Vol.74 No.-

별건구속은 형사실무에서 수사기관이 피의자를 구속하여 수사할 필요성이 있지만, 당해 피의자를 구속할 만한 충분한 증거를 확보하지 못한 경우에 구속요건을 충족하는 다른 사건을 이유로 법원으로부터 구속영장을 발부받아 피의자를 구속하는 경우를 말한다. 이러한 별건구속은 수사의 신속성과 효율성의 측면에서 매우 유용한 수사기법이기도 하다. 그러나 통설은 구속요건이 충족되지 아니하는 본건구속을 위한 사전절차로서 별건구속을 이용하기 때문에 종국적으로 영장주의에 위배되므로 허용할 수 없다는 입장이다. 이러한 통설과 달리 판례는 별건구속에 대하여 간접적으로 허용하는 분위기이며, 판례의 입장을 지지하는 극소수설은 실무의 입장을 반영하는 견해로서 별건이든 본건이든 구속요건을 충족하는 경우라면 적법절차에 위배되지 않는 것이기 때문에 그에 따른 법원의 영장발부는 정당한 것으로 볼 수 있다는 것이다. 왜냐하면 법원은 검사가 피의자에 대한 구속영장을 청구할 때 구속요건의 존부와 구속영장 실질심사를 엄격하게 진행하기 때문에 현실적으로 우려하는 위법한 별건구속의 집행은 기대하기가 매우 어렵기 때문이다. 그리고 별건구속으로 영장을 발부받아 본건수사를 진행하는 경우라 하더라도 범죄의 중대성과 범죄예방의 차원에서 여죄수사의 형식으로 진행된다면 그 별건구속에 대하여 위법하다고 할 수가 없다. 따라서 구속요건이 엄격하게 충족되는 별건구속은 별건기준으로 볼 때 형사소송의 지도이념에 부합하기 때문에 허용되는 것이 타당하며, 수사실무에서 실질적으로 별건구속과 구별이 어려운 여죄수사도 수사의 필요성과 상당성을 충족하는 것을 전제로 하기에 전면적으로 허용되는 것이 타당하다. A pretextual detention refers to the case in which an arrest warrant is issued by the court for another case that meets the requirements of arrest, in case the investigation agency fails to secure sufficient evidence to detain the suspect, even though it has a need to detain the suspect in criminal practice. This pretextual detention is also a very useful method of investigation in terms of speed and efficiency of investigation. However, the general opinion is that it is not acceptable because it is ultimately against warrantism because it uses a pretextual detention as a preliminary procedure for the detention of the case that does not meet the requirements of imprisonment. Contrary to this general opinion, the precedent is an atmosphere that indirectly permits a pretextual detention. The very few theory that supports the case is that the courts issuance of a warrant can be deemed legitimate because, from the perspective of the practice areas, it would not violate the legal process if the conditions for the case are met. This is because the court strictly reviews the existence of the requirements for detention when a prosecutor requests an arrest warrant for a suspect. In reality, it is very difficult to expect the execution of illegal a pretextual detention. And even if a warrant for a pretextual detention is issued for investigation of the case, it would not be illegal for the pretextual arrest if the case is carried out in the form of investigation of other crimes to prevent the crime. Therefore, it is reasonable to permit a pretextual detention where the requirements of imprisonment are strictly met because it conforms to the guiding principle of criminal suit on a separate basis. In addition, it is reasonable that investigations of other crimes, which is difficult to distinguish from a pretextual detention in investigation practice, is allowed to be fully accepted because it meets the necessity and the significance of the investigation.