산업안전보건법 상 관리수준 검토를 위한 화학물질 유해성,위험성 평가대상 후보물질 선정에 관한 연구

양정선 ( Jeong Sun Yang ),임철홍 ( Cheol Hong Lim ),박상용 ( Sang Young Park ) 한국산업위생학회 2012 한국산업보건학회지 Vol.22 No.1

Object: The aim of this study is to suggest a list of priority chemicals for the Hazard & Risk Evaluation of Chemicals (HREC) controlled by the Industrial Safety and Health Act (ISHA). Method: Method: Screening assessment was done for 642 chemicals whose exposure threshold limit values were set by the Ministry of Employment and Labor (MOEL). Hazard data were collected from Korea Occupational Safety & Health Agency (KOSHA) and/or other toxicity database. Exposure data were obtained from KOSHA internal database. The hazard and exposure scores of chemicals were listed by order of priority in accordance with GHS classification and exposure index data. Result: From the result of screening risk assessment for 642 chemicals, we extracted a list of 13 priority chemicals for HREC performed by the ISHA. A priority list of 27 chemicals which have carcinogen, mutagen and/or reproductive toxicity but not controlled by the ISHA was suggested for additional evaluation as "chemicals for special management".

“Liberation Space” and Times of Resistance in Visual Records

Yang Jeong Sim(양정심) 고려대학교 한국사연구소 2014 International Journal of Korean History Vol.19 No.2

이 글은 해방공간, 소위 ‘해방3년사’를 다룬 영상기록물을 통해 당시의 사회상을 다루고자 한다. 분석 대상은 사실(fact)에서 출발하는 영상자료인 뉴스영화와 기록영화를 대상으로 한다. 한국사에서도 문헌기록 뿐 만 아니라, 사진, 포스터등 사료의 활용 영역이 넓어지고 있다. 여기에서는 생생하게 보여주는 영상기록을 토대로 해방공간을 재구성해보고자 한다. 이 글에서 특히 주목하는 것은 영상기록의 촬영과 상영 주체라 할 수 있는 미군정의 의도가 벗어나는 틈새 지점이다. 미군정의 탄압 속에서도 생존권 투쟁과 분단을 막고자 하는 정치적 저항을 함께 하는 순간을 포착하고 그 의미를 되새겨보고자 한다. This paper attempts to discuss social aspects of the “liberation space” or the history of three years after the Korean liberation from the Japanese colonial rule, through audiovisual records of the time. The object of analyses will be audiovisual resources, specifically news films and documentary films, which are rooted in facts. The use of not only written documents but also photographs, posters, and other historical resources is increasing in studying Korean history. This paper will reconstruct the space of liberation based on vivid audiovisual records of the time. In particular, this paper focuses on the points in films that deviate from the motives and intentions of the United States Army Military Government in Korea (USAMGIK), which was the principal agent that produced and screened the films examined in this paper. This study attempts to capture and ruminate on the significance of the moments of Korean peoples’ struggle for the right to live and their political protests to stop the division of the Korean Peninsula under the oppression of USAMGIK.

< 한글 맞춤법 >의 텍스트 내적 완결성에 대한 거시적 측면에서의 고찰

양정호 ( Jeong Ho Yang ) 한국텍스트언어학회 2016 텍스트언어학 Vol.40 No.-

Korean Orthography has two aspects: it is a prescriptive norm of language life and, at the same time a text that requires its completion. As for prescriptive aspect, a study of validity of the rules of Korean Orthography is demanded. The latter demands an examination of the internal completion of the text itself. This study analyses the internal completion of the text itself, placing an emphasis on macroscopic aspects of the text, i.e. the structure of the text and logical consistency In this study four criteria such as the principle of economics, sufficiency, consistency, and uniformity, are employed to assess the internal completion of the text. Principles and findings are as follows: The criteria of the internal completion from macroscopic perspectives comprise of principle of economics (the text should include necessary rules only), sufficiency (the text include every rule necessary), consistency (logical consistency among the rules), and uniformity (the expression of rules should be in similar tones and patterns). This study also finds that specific rules in the text are to be revised. Rules 4, 5, 6, 16, 27/28/29, 31, 55/56/57 are in violation of the principle of economics. Rules 10/11/12, 18 violate the principle of sufficiency. Rules 28/29, 42/43 and Rules 16/18/34/35/36, 18, and 28/29/31 also are against the principle of for consistency and uniformity respectively. Findings suggest that revision of the text should be made with deletion, merge, amendment, and so on.

미국 기록영화와 한국전쟁 ― 미 육군통신대 영상을 중심으로 ―

양정심 ( Jeong-sim Yang ) 수선사학회 2017 史林 Vol.0 No.60

By taking note of the image records as the historical sources, this paper examines the imagification process of the Korean War. With the Department of Public Information in the US government, organizations in the US armed forces had produced lots of documentary films about the wars. The United States Army Signal Corps (USASC) produced video records on the Korean War in order of the outbreak, processes, and armistice negotiations. The films contain edited records related to the events of the Korean War; and these news films were showed and broadcasted. The Korean War that was triggered by the collision of two different ideologies, capitalism and communism, caused the propaganda war for aggrandizing military victories and for justifying the enter a war. The image records containing fierce battles and nonfictional truths were the significant media for legitimating the US participation in the Korean War and for persuading it to the public. Video records are the contemporary historical sources; thus image records produced in the USASC reflected the direct perspectives of the US government. Therefore, these records show accurately the intention of the US government in what way the Korean war perceived and memorized. These films explicitly demonstrate that the US government was confident as a winner of the cold war under the images that it led and protected the free world. Although the war was broken in the Korean peninsula, the group who commanded and had battles and protected the civilian was not the South Korean but US armed forces. On the other hand, the Korean people were described as the pitiable images. The films frequently exhibit that the US government decided on the fate of the Korean peninsula where the international war was outbreak beyond the civil war. This study begin with the critical mind that the visual media are also significant historical texts as with documents. Nevertheless, it is not easy work to historicize image records for conducting historical research. For this reason, this paper adopts the theory that `approaches` is more appropriate term than `methods` in the research field in the visual history, because it seems that the concept `approaches` embraces new concerns or perspectives rather than the term `method`. By considering that image records contain more facts than dramatic films, the analyses on image records that are similar to historical literatures will widen the area of historical studies.

반응성 염료폐수 처리를 위한 화학응집, 펜톤산화, 세라믹 분리막 복합공정의 최적화

양정목(Jeong Mok Yang),박철환(Chul Hwan Park),이병환(Byung Hwan Lee),김탁현(Tak Hyun Kim),이진원(Jin Won Lee),김상용(Sang Yong Kim) 大韓環境工學會 2006 대한환경공학회지 Vol.28 No.3

디지털 앰프 시스템에서의 안정성 향상에 대한 연구

양정석(Jeong-Seok Yang),김용득(Yong-Deuk Kim) 대한전자공학회 2007 대한전자공학회 학술대회 Vol.2007 No.7

This paper deals with the study on the improvement in stability for two kinds digital amp system. Author has proposed a new protection circuit and algorithm that protect amplifier from an inflow of surgy current or voltage. A new protection circuit and algorithm has been applied for the over current limit and the prevention of ic burning.

기계설비 내진설계 대상 분석

양정은(Jeong Eun Yang),류석원(Seok Won Ryu) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.6

자동차 실내 공기 오염 문제 해결을 위한 사물인터넷 설계 및 구현

양정일(Jeong IL Yang),유인태(Intae Ryoo) 한국정보과학회 2018 한국정보과학회 학술발표논문집 Vol.2018 No.6

가상 슬레이브 정동역학 보정에 기반한 원격제어 시스템 개발

양정연(Jeong-Yean Yang) 한국콘텐츠학회 2018 한국콘텐츠학회논문지 Vol.18 No.7

원격제어는 명령을 전달하는 마스터 장치와 원격지에 위치한 로봇을 슬레이브로 간주하는 방식이다. 이러한 원격제어의 경우, 양 에이전트 간의 동특성, 전송속도 차이에 의해 가상환경을 이용한 가상 슬레이브를 통해 조작자가 원격제어의 특수성을 선행 수행하는 것이 일반적이다. 기존의 가상 슬레이브는 연산량의 한계에 의해 동역학적 효과를 제거한 그래픽 모델로 구성하는 것이 일반적이나 이는 원격지 로봇의 동특성이 무시되어 실제 원격제어시의 실재감을 살리기 어렵다. 본 논문에서는 로봇의 정동역학 모델을 이용하여 이를 원격제어에 활용하고, 가상 환경에서 상대적으로 느린 제어 주기에 의해 발생하는 정동역학의 수치오류를 보완하는 보상 기법을 제안하고 이를 실제 환경과의 원격제어와 비교하고자 한다. Teleoperation is defined with a master device that gives control command and a slave robot in a remote site. In this field, it is common that a human operator executes and experiences teleoperation with a virtual slave, and preliminary learns dynamic characteristic and network environment from both agents. Generally, a virtual slave has neglected forward dynamics and its kinematic model has been implemented in computer graphics. This makes a operator to experience actual feelings. This paper proposes a dynamic teleoperation model in which a robotic forward model is applied. Also, a novel compensation method is proposed to reduce the numerical error problems in forward dynamics caused by low control sampling rate. Finally, its results will be compared to the teleoperation in an actual environment.

統一新羅 王京 S1E1遺蹟의 靑銅工房 性格에 대한 試論

양정석(Yang Jeong seok)(梁正錫) 한국외국어대학교 역사문화연구소 2014 역사문화연구 Vol.52 No.-

통일신라의 왕경이었던 경주에서는 최근까지 많은 생산유적이 발굴조사를 통해 확인되었다. 그 중에서도 청동공방으로 생각되는 생산유적은 당시 다양한 청동제품을 만들어서 소비공간으로 납품하였을 것이다. 이러한 공방은 생산의 주체에 따라 官營, 私營 등으로 나누어 이해할 수 있을 것이다. 그런데 당시 생산은 근대적 의미의 생산이 아니므로 전근대의 경제외적 주체라고 할 수 있는 소비 주체, 국가, 왕, 귀족, 사원 등과 밀접한 관계가 있다고 할 수 있다. 관영 또는 귀족소유의 개별 공방에서는 그들이 필요로 하는 고급청동제품을 제작하였을 것이다. 따라서 생산을 담당하는 제작 공인들이 율령을 중심으로 한 국가체계하에서 어떠한 방식으로 관리되는가 하는 점은 매우 중요하다. 왕경 내 생산공간의 변화가 생겨 특정지역이 일종의 국가 공단화되고, 가로로 구획된 왕경의 중심구역에서 개별적인 사영 공방의 확산되어 가는 것은 이러한 점에서 시대의 변화를 보여주는 단서가 될 것이다. 더불어 당시 최고이자 최대의 소비 공간인 궁궐과 비견할 수 있는 불교 사원도 그들이 필요로 하는 청동 의기를 제작하였을 것이다. 우선 사원에서는 佛事로 이야기되는 과정을 통해 권위건축 창건 등에 소용되는 대불, 대형 동종 등이 제작되었을 것이다. 그런데 불교사원의 경우 불사가 아니더라도 지속적으로 청동으로 제작된 儀器들이 사용되었을 것이다. 특히 대형 사원들이 밀집된 지역이라면 상시로 제작을 수행할 공방이 필요할 것이다. 황룡사 동남편의 S1E1 왕경유적에서 확인되는 공방 가옥은 이러한 필요에 의해 만들어진 공방으로 이해할 수 있을 것이다. 이 공방의 성격은 일본 官寺의 공방과 비교하여 국가관리 사원에 설치된 成典과 관련하여 보고, 일반적인 관영 공방과는 다른 별도의 사원공방으로 이해하고자 한다. Recently, in Gyeongju, a Capital of Unified Silla, a lot of manufacture relics were discovered by investigations through excavation activities. The manufacture relics of bronze workshop delivered many kinds of bronze works to consumer spaces. The workshops in which works were delivered were classified with government management and private management. At that time, manufacture was not be made by the modern style. So, the workshops would have been closely related with consumer subject, before modern time non-economic, nations, kings, nobles, and temples. Respective works possessed by the governmental offices and nobles manufactured high-class bronze works they needed. So, the system was very important, how manufacturing workmen were managed in the national system, basing on regulation and laws, At that time, manufacturing spaces were changed in Capital, and specified regions became national complexes. Respective private workshops were distributed in the center area of Capital divided horizontally. It will be a clue which shows period change. In addition, Buddhist temples which consumed the articles in the largest scale, almost similar to royal palace, would have manufactured bronze container articles. Even for non-Buddhist affairs, the Buddhist temples would have used the bronze container articles. Especially, the areas in which temples were built closely would have needed the workshops to work always together. The workshop residences found in Capital S1E1 site located at the south east of Hwangryongsa Temple would have been built for the necessity. This workshop's character has many simularities with japanese government-managed temple's workshops, so that I understand this workshops were attached to government-managed temple rather than belong to government directly.