셀룰로오스 작물 폐기물인 에리안사스(Erianthus)를 이용한 고분자 바이오 복합재료로 적용 가능성에 대한 연구

이희성,정미정,김용준,연진모,조윤아,조나현,신선경,안도요시토,전태완 한국폐기물자원순환학회 2015 한국폐기물자원순환학회지 Vol.32 No.6

The innovation in this study is the complexation of Erianthus fibers (Erianthus arudinaceus) with compatibilizer in PP by extrusion, to produce a material with an improvement in mechanical properties. The aim is to provide a generalpurpose material from biomass that does not compete with food as an alternate material from the petroleum base. Erianthus is a cellulose resource crop which is a source of bio fuel, is inedible, highly productive and promising energy resource, there has been little report on its use as a material. It also is a cellulose resource crop with a high productivity as a fiber reinforcement material with low environmental load. Development of Erianthus fiber reinforced polypropylene (PP) composite material was reviewed. Erianthus fiber was pulverized and the powder was sorted by sieve size, which was put through the process of complexation with polypropylene using a twin-screw extruder. The mechanical characteristics of the obtained composite material were evaluated by conducting a tensile strength test and a bending test. As a result of using the classified fiber as the filler, it is found that the difference in the surface area of the fiber has a great effect on the mechanical properties and the thermal decomposition properties. It is found to be sufficiently feasible to make Erianthus function as a polypropylene fiber reinforcement element by controlling the size of Erianthus fiber.

Superoxide(O2-) 독성 작용

이희성 대한내과학회 1989 대한내과학회지 Vol.36 No.4

사용자의 경영권과 근로자의 노동3권의 충돌에 관한 연구

이희성 한국고용노사관계학회 2007 産業關係硏究 Vol.17 No.2

A method of industrial action to be intense in industrial relation of the day and various demand condition that occurred very much simultaneously is true to be giving a large shock to our industrial world and company management. Absence of effort for rights protection of each other party is the important cause an employee and employer this phenomenon. Employees unite for an elevation of employment conditions as a means of a survival security as man independently and negotiate for name of he union sieve, and an organization can collective action if negotiation does not consist smoothly. It is three labor that this rights are defining in our constitutional law Article 33(1). Employees was recognized three labor right with a way of a survival maintenance as opposing the liberty of contract and freedom of private right that is a basic principle of modern private law. Therefore, three labor right is composed a characteristic basis right concept which was different from the former right to freedom to call a basis right of right to live. It opposed force of a capital for guarantee of three this labor, and a labor movement was approved as a means to secure the right to live of a worker and rights of labor. On the other hand an employer has the right of management. The right of management is a rights of constitutional ensured employer with a three labor right of employee equally. According to the judgment of our Supreme Court, the right of management of an employer is called a concept based on the constitutional law Article 23, 119 and 15. It is true that the right of management of an employer is not said directly at constitutional law and labor-related laws, but it is a concept necessary so that a company achieves the purpose with the "B" which civil law defines and "A" which was based on an labor contract. Therefore, the right of management of an employer carries the legal value that must be ensured absolutely so long as it is used within just range. Employees in our industrial relation ask an employer and employee concluding an collective agreement of labor contract in an equivalent rank through a labor movement, and are done an collective action for a achievement of an collective agreement. However, labor and management do a demonstration of actual force or a similar action in order to negotiate in advantageous entrance in each oneself. Because an organization acts temporarily if dissatisfaction of worker itself cannot be solved through the course which is a system, industrial dispute is generated. Groups to have been contrary to varying understanding cannot solve this industrial disputes smoothly through a conversation and a compromise groups and it is for each group to can spout at the same time out force to have. Therefore, a process of negotiation and agreement decision between labor and management stood up in order to be performed by the order that did not exceed a social common idea and type justly, labor and management absolutely need effort to admit all. It must be respected each other, three labor right that are rights of employee and right of management that are rights of employer, and can say that protection about this is requested for industry social peace and development. However, if labor and management cannot be respected each other and want solution in one-sided force, may not develop with social economy rest that the right of management collides against three labor right to the industrial relation which was not able to be amicable. This study considers a legal meaning of the right of management and three labor right in actual industrial relation and offers a solution plan when a basis right of three labor right collides against the right of management, also is going to contribute to industrial relation development concerned with finds out an evaluation standard more definitely, and offering the right of management and a plan for concrete guarantee of three labor right. 동법은 근로자보호 이전에 기본적으로 노사관계를 규율하기 위한 발전적인 방향을 정립하여야 할 것이다. 그 근본취지에 비추어 노동법상 규율되고 있지 않은 조합활동상의 제문제에 대해서 또는 보다 더 근본적인 문제는 단순히 기초적인 기준을 설정하고 있을 뿐인 현재의 노동법의 체계를 벗어날 수 있도록 노력하여야 할 것이다. 따라서 현대사회에 걸맞는 보다 발전적인 노사관계를 지향하기 위한 독자적이며 합리적이고 포괄적인 새로운 노동관계법률의 입법이 요청된다.

동시성 대장암에 대한 임상적 고찰

이희성,이루지,조용권,윤해란,조용범,윤성현,김희철,이우용,전호경,박준호 대한대장항문학회 2009 Annals of Coloproctolgy Vol.25 No.4

Purpose: Synchronous colorectal cancer is clinically significant because there is a chance to miss concurrent lesions. The aim of this study is to investigate the clinical features of synchronous colorectal cancer. Methods: Retrospectively, the records of 4,494 colorectal cancer patients who underwent a potentially curative resection for colorectal cancer from September 1994 to December 2005 were reviewed. Synchronous colorectal cancer was defined according to the following two criteria: 1) two or more colorectal cancers had to be found simultaneously in the same patient and 2) each of the tumors had to be distinctly separated by an intact bowel wall. Results: Synchronous colorectal cancer was diagnosed in 114 patients (2.5%). Synchronous colorectal cancer shows different features compared with single colorectal cancer. Synchronous colorectal cancer occurs at a older age, occurs more frequently in the colon, has a bigger size, and has more polyps. There was no difference of stage based on survival rate between synchronous and single colorectal cancer patients. The preoperative diagnosis rate of synchronous colorectal cancer was 74.6%. Eleven (9.6%) synchronous colorectal cancer patients underwent a total colectomy, and there were no significant differences in survival or complications compared with the other group. Conclusion: Synchronous colorectal cancer is difficult to diagnose preoperatively. Early postoperative examination for synchronous colorectal cancer is required, especially in patients who did not have a complete preoperative evaluation. Purpose: Synchronous colorectal cancer is clinically significant because there is a chance to miss concurrent lesions. The aim of this study is to investigate the clinical features of synchronous colorectal cancer. Methods: Retrospectively, the records of 4,494 colorectal cancer patients who underwent a potentially curative resection for colorectal cancer from September 1994 to December 2005 were reviewed. Synchronous colorectal cancer was defined according to the following two criteria: 1) two or more colorectal cancers had to be found simultaneously in the same patient and 2) each of the tumors had to be distinctly separated by an intact bowel wall. Results: Synchronous colorectal cancer was diagnosed in 114 patients (2.5%). Synchronous colorectal cancer shows different features compared with single colorectal cancer. Synchronous colorectal cancer occurs at a older age, occurs more frequently in the colon, has a bigger size, and has more polyps. There was no difference of stage based on survival rate between synchronous and single colorectal cancer patients. The preoperative diagnosis rate of synchronous colorectal cancer was 74.6%. Eleven (9.6%) synchronous colorectal cancer patients underwent a total colectomy, and there were no significant differences in survival or complications compared with the other group. Conclusion: Synchronous colorectal cancer is difficult to diagnose preoperatively. Early postoperative examination for synchronous colorectal cancer is required, especially in patients who did not have a complete preoperative evaluation.

A Case of Primary Hepatic Malignant Paraganglioma without Hypertension

이희성,이형근,유동도,허진석,최성호,최동욱 한국간담췌외과학회 2009 한국간담췌외과학회지 Vol.13 No.1

Paraganglioma is an unusual neoplasm that is embryologically derived from neural crest cells. The most common location of this neoplasm is the adrenal medulla, where these tumors are known as pheochromocytoma. It is extremely rare that paragangliomas occur in the liver. There are only 7 reports of primary hepatic paraganglioma. A 56-year-old man was referred to XX Medical Center. Hypertension was not found. He had suffered from jaundice, headache and weight loss for the 4 previous weeks, but hypertension was not present. The total bilirubin was 7.7 mg/dl and the CA19-9 level was 56.3 U/dl. The tumor was diagnosed as intrahepatic cholangiocarcinoma on the computed tomography image. After biliary drainage via endoscopic nasobiliary drainage, surgical exploration was carried out; right trisectionectomy with caudate lobectomy, portal vein resection and anastomosis were then done. The final pathological diagnosis was primary hepatic malignant paraganglioma of the intrahepatic duct. There has been no evidence of recurrence on the follow up CT images during the 24 month follow up period.

노동법제의 쟁점과 전망

이희성 한국법제연구원 2008 법제연구 Vol.- No.35

In 2008, Korea has the 60th anniversary after establishing the government of the Republic of Korea with a constitution announcement on July 17, 1948. The standard of labor condition was specified in the law according to the established constitution, Article 17, and the labor of a woman and a boy were prescribed as the special protection. Also three rights of laborer in Article 18, that are the right to organize, the right for collective negotiation, and the right for group action, were guaranteed and the right to possess profits equally in private company was prescribed. As a result, a labor campaign and a legal history of labor of the Republic of Korea had the new turning point. Based on the basic frame for labor laws of the established constitution, labor legislation was accomplished in 1953. Since three acts for labor have been enacted in 1953 followed by Japan's colonial period and U.S. military age, the national labor relations acts have reached to the current situation throughout several enactments and amendments in the process of political and social changes. In the meantime, laborers of Korea strongly contributed as the industrial laborer in the process of rapid economical growth of 1980's and 1990's. With a discussion about the amendment of the national labor relations acts based on the Tripartite Commission that is the model by social agreement in 2000's, amendment and enactment of the national labor relations acts were performed as advanced works of the relations between labor and capital including protections of labor hour and non-regular laborer and all kinds of vacation system. Thereafter, with the amendment of laws for the purpose of “making laws which are easy to know”, whole laws were repaired by correcting the Chinese character of Japanese style and the unmatched expression on the orthography, and by newly adding the law text number. Legislation and amendment indicating a direction change of individual labor relations acts had been process and is processing in current. I still think, however, Korea is in the time point that the change of new paradigm could be considered to overcome difficult economical conditions both home and abroad within the flow of world rapid change. Especially, our current labor world still have a number of assignments to solve such as problems of non-regular worker by various recruits and hiring types, negotiating problems by industry with labor union by industry, payment problems for predecessor of labor union, problems of allowance for dual unions, employment problems of old people, protection problems of foreign labor, improvement problems of a labor committee system, etc. Actually establishment and development of labor laws could be organized on purposes that worker develops a labor campaign to get their right to live, that user makes an effort to obtain a good quality of labor power and to maintain the industrial peace, and that the government solve a social unrest and a political disorder with overcoming a conflict between labor and capital. Therefore rights and interests of laborer should be protected with introducing a legislative system for labor contract and separating the regions between labor protection and labor contract, and solving a conflict between labor and capital with introducing the system of labor court shouldn't be fall behind to international levels. In addition, in order to jump on an advanced country, we keep looking for plans to solve separated problems with propelling various policies of the relations between labor and capital and with understanding the basic assignment oriented by the government. In 2008, Korea has the 60th anniversary after establishing the government of the Republic of Korea with a constitution announcement on July 17, 1948. The standard of labor condition was specified in the law according to the established constitution, Article 17, and the labor of a woman and a boy were prescribed as the special protection. Also three rights of laborer in Article 18, that are the right to organize, the right for collective negotiation, and the right for group action, were guaranteed and the right to possess profits equally in private company was prescribed. As a result, a labor campaign and a legal history of labor of the Republic of Korea had the new turning point. Based on the basic frame for labor laws of the established constitution, labor legislation was accomplished in 1953. Since three acts for labor have been enacted in 1953 followed by Japan's colonial period and U.S. military age, the national labor relations acts have reached to the current situation throughout several enactments and amendments in the process of political and social changes. In the meantime, laborers of Korea strongly contributed as the industrial laborer in the process of rapid economical growth of 1980's and 1990's. With a discussion about the amendment of the national labor relations acts based on the Tripartite Commission that is the model by social agreement in 2000's, amendment and enactment of the national labor relations acts were performed as advanced works of the relations between labor and capital including protections of labor hour and non-regular laborer and all kinds of vacation system. Thereafter, with the amendment of laws for the purpose of “making laws which are easy to know”, whole laws were repaired by correcting the Chinese character of Japanese style and the unmatched expression on the orthography, and by newly adding the law text number. Legislation and amendment indicating a direction change of individual labor relations acts had been process and is processing in current. I still think, however, Korea is in the time point that the change of new paradigm could be considered to overcome difficult economical conditions both home and abroad within the flow of world rapid change. Especially, our current labor world still have a number of assignments to solve such as problems of non-regular worker by various recruits and hiring types, negotiating problems by industry with labor union by industry, payment problems for predecessor of labor union, problems of allowance for dual unions, employment problems of old people, protection problems of foreign labor, improvement problems of a labor committee system, etc. Actually establishment and development of labor laws could be organized on purposes that worker develops a labor campaign to get their right to live, that user makes an effort to obtain a good quality of labor power and to maintain the industrial peace, and that the government solve a social unrest and a political disorder with overcoming a conflict between labor and capital. Therefore rights and interests of laborer should be protected with introducing a legislative system for labor contract and separating the regions between labor protection and labor contract, and solving a conflict between labor and capital with introducing the system of labor court shouldn't be fall behind to international levels. In addition, in order to jump on an advanced country, we keep looking for plans to solve separated problems with propelling various policies of the relations between labor and capital and with understanding the basic assignment oriented by the government.

The Comparative Study between MT and LXX-Isaiah 60:1‐12: An Example of the Translation Techniques of LXX-Isaiah

이희성 (재)대한성서공회 성경원문연구소 2009 성경원문연구 Vol.- No.25

본 논문은 칠십인역 이사야서의 번역에 대한 연구이며 번역이 어떻게 번역자의 언어적, 신학적 방법론에 영향을 받았나를 다룬다. 과거 칠십인역 연구는 본문상의 문제(본문 비평과 본문의 역사)를 주로 다루었다. 그 동안 학자들은 칠십인역의 모든 단어들과 구문은 원문의 언어로부터 충실하게 번역이 되었다고 믿어왔다. 그러나 최근 칠십인역 연구는 헬라어 번역에 나타난 주해적 방법과 신학적 경향에 관한 이슈들로 바뀌어 가고 있다. 이사야서의 헬라어역은 신학적 사상들, 상징들, 단어들을 한 언어에서 다른 언어로 번역하는 작업은 불가피하게 해석적인 과정과 관련이 있다는 점을 드러내고 있다. 따라서 칠십인역을 이해함에 있어서 필수적인 요소는 번역자가 어떻게 언어적으로 작업을 했는지 여부뿐 아니라 어떻게 그가 히브리 본문의 의미를 이해하고 번역했는가라는 점이다. 따라서 본 연구는 칠십인역 번역 방법들에 대한 몇 가지 예증들을 찾기 위해 이사야 60:1-12의 칠십인역과 맛소라 본문의 각 절을 비교하고 그 차이점과 유사점들을 평가한다. 칠십인역 이사야 60:1-12은 두 가지의 서로 상이한 수준의 번역을 나타내 보이고 있다: 문자적인 번역과 동시대의 문화 종교적 배경에 의해 신학적이며 주해적으로 영향을 받은 해석적 번역이다. 칠십인역 이사야 60:1-12의 번역 방법들을 다음과 같이 분류할 수 있다. 첫째, 온건한 문자적 번역의 몇 가지 증거들이 있다(1b, 3, 6a, 6b, 11, 12). 번역자는 모든 히브리어 단어들 또는 구문적 구조들을 그에 상응하는 헬라어에 최대한 근접하게 번역을 하였고 가끔 약간의 수정을 하였다. 둘째, 번역가는 번역에 있어서 원문에 상응하는 적절한 헬라어 단어들을 결정함에 있어서 언어적인 주해의 요소를 소개하였다(1a, 4a, 8). 번역가는 본문의 문학적 문맥을 인식하고 언어적으로 그에 상응하는 것들을 선택하였다. 그러나 또한 언어적으로 상응하는 것들이 문맥과 상관없는 번역가의 자유로운 선택임을 증명하는 독특한 번역들도 있다(2a, 5). 셋째, 몇몇 단어들의 선택은 동시대의 헬라적 유대 문화를 반영한다(4a, 7b, 9a). 칠십인역 번역은 유대-헬라 문화적 배경에 의해 영향을 받은 해석적 특성들을 어느 정도 보여준다. 마지막으로 칠십인역 이사야 60:1-12은 번역자의 언어적 주해의 산물일 뿐 아니라 또한 그의 신학적 해석의 결과물이다(6c, 7a, 9c, 10b). 번역자는 한 개념의 확장 또는 생략 그리고 단어와 절들의 변화에 있어서 번역시 그에 상응하는 것들을 선택하는데 영향을 미치는 자신의 신학적이며 해석적인 개념을 가지고 있다. 이처럼 칠십인역 이사야 60:1-12에 나타난 본문, 언어, 문예, 문화, 신학과 같은 내적이며 외적인 증거들은 번역시 번역자의 해석적 과제가 있음을 말해주고 있다.

韩国高龄劳动者雇佣促进制度

이희성 한국비교노동법학회 2008 노동법논총 Vol.14 No.-

한국은 1960년대 이후 의학기술의 발달, 출산율의 하락, 평균수명의 연장, 소득증가 등의 영향으로 전체 인구에서 고령인구가 차지하는 비율은 급속히 증가하였다. 유엔에 의하면 65세 이상 인구가 총 인구의 7%이상이면 노령사회라고 부르는데 한국은 이미 2000년에 65세이상 고령인구가 7.2%로서 고령화사회로 접어들게 되었다. 또한 향후 2018년에는 14.3%로 “고령사회”에, 2026년에는 20.8%가 되어“초(超)고령사회”에 도달할 것으로 전망되어지고 있다. 이 같은 고령인구의 증가는 부양인구 및 경제활동인구의 상대적 감소를 가져와 가족의 부양기능이 현저히 약화되어 사회적인 비용의 증가뿐만 아니라 고령자의 신체적, 경제적, 심리적 특성에 따른 다양한 고령자 복지수요가 증대하게 되었다. 이러한 시대에 국가는 고령자들이 일을 통하여 자기성취를 하게하고 경제적 생활을 보장할 수 있도록 해 줄 책무를 지니고 있다고 보아야 한다. 국가는 고령자들이 그간의 직업생활과 사회활동의 경험을 통하여 많은 경륜을 쌓아온 점을 평가하여, 이들의 지식과 경험을 사장시키기보다는 오히려 이를 생산적 자원으로 활용하여 국가사회의 발전에 기여하도록 만들어야 한다. 우선 고령자의 능력에 적합한 직업으로 취업할 수 있는 기회를 확보하여 고령자의 고용증진을 위해 노력하여야 한다. 또한 노인의 사회참여확대를 위한 지역봉사활동기회제공 및 각종 노인복지정책을 추진하여야 한다. 따라서 국가가 고령자의 고용을 촉진하고 확보하는 것은 고령자를 부양하기 위한 사회적 부담을 줄이면서 고령화사회의 노인문제를 해결하는 중요한 우선과제라고 본다. 즉 고령자들이 인간다운 생활을 영위하기 위해서는 의식주와 건강의 유지는 물론 문화적 욕구를 기본적으로 충족시킬 수 있는 수입이 필요하다. 특히 노인들은 신체적 노화현상으로 의료비용이 더 필요하게 되므로 그에 따른 추가적 소득이 필요하다. 더구나 한국의 노인들은 과거 자녀들에 대한 과다한 투자로 노후준비를 소홀히 하였고 또 사회보장제도의 미성숙으로 일부 노인들만 연금급여를 받고 있기 때문이다. 또한 한국의 현행 고령자고용촉진법상 각종 고령자고용촉진제도로서 기준고용률제도와 정년연장 및 재고용 권장 규정 등을 통하여 심리적으로 고령자 고용을 강제하는 방안과 취업 알선을 지원하는 방안 그리고 고령자 우선직종 선정과 채용을 지원하는 방안 등을 효율적으로 개선하여야 할 것이다. 장기적으로는 연금제도가 완전히 성숙하게 되면 노후소득이 증가할 가능성이 높기 때문에 향후 노인인구의 경제활동참가율의 감소에도 대비하여야 한다. 노령근로자가 임금, 직업안정성, 근무시간, 근무조건 등이 열악한 직성에서의 고용유지와 퇴직 중 하나를 선택해야 하는 상황에 놓이게 될 경우 노인인구의 경제활동참가율 감소는 더욱 더 강화될 가능성이 많다. 따라서 고령근로자의 일자리 질(quality)에 접근하는 것도 중요하다. 모든 연령대의 근로자의 근무여건이 향상될 경우 작업 중 사고를 예방할 수 있고, 근로자의 건강을 향상시키며, 노화에 따른 근로능력 감소를 완화할 수 있다. 또한 한국의 기준고용률제와 고령자우선고용제도는 고령근로자의 취업전망을 개선해야 함을 강조하는 차원의 역할을 할 수는 있으나, 현실적으로 고령근로자의 채용 및 유지에 얼마나 효과적인지 하는 점은 분명치 않다. 향후...

A Noise Robust Gait Representation: Motion Energy Image

이희성,홍성준,Imran Fareed Nizami,김은태 제어·로봇·시스템학회 2009 International Journal of Control, Automation, and Vol.7 No.4

Gait-based human identification aims to discriminate individuals by the way they walk. A unique advantage of gait as a biometric is that it requires no subject contact and is easily acquired at a distance, which stands in contrast to other biometric techniques involving face, fingerprints, iris, etc. This paper proposes a new gait representation called motion energy image (MEI). Compared with other gait features, MEI is more robust against noise that can be included in binary gait silhouette images due to various factors. The effectiveness of the proposed method for gait recognition is demonstrated using experiments performed on the NLPR database.

도심 자율주행을 위한 어텐션-장단기 기억 신경망 기반 차선 변경 가능성 판단 알고리즘 개발

이희성,이경수 사단법인 한국자동차안전학회 2022 자동차안전학회지 Vol.14 No.3

Lane change in urban environments is a challenge for both human-driving and automated driving due to their complexity and non-linearity. With the recent development of deep-learning, the use of the RNN network, which uses time series data, has become the mainstream in this field. Many researches using RNN show high accuracy in highway environments, but still do not for urban environments where the surrounding situation is complex and rapidly changing. Therefore, this paper proposes a lane change possibility decision network by adopting Attention layer, which is an SOTA in the field of seq2seq. By weighting each time step within a given time horizon, the context of the road situation is more human-like. A total 7D vectors of x, y distances and longitudinal relative speed of side front and rear vehicles, and longitudinal speed of ego vehicle were used as input. A total 5,614 expert data of 4,098 yield cases and 1,516 non-yield cases were used for training, and the performance of this network was tested through 1,817 data. Our network achieves 99.641% of test accuracy, which is about 4% higher than a network using only LSTM in an urban environment. Furthermore, it shows robust behavior to false-positive or true-negative objects.