저전력 수집환경 하 RF 에너지 하베스팅의 활용가능성 연구

김병섭(Byoung-Sub Kim),방성호(Seung-Ho Bang),오경준(Gyoung-Joon Oh),조현규(Hyun-Kyu Cho) 대한전자공학회 2020 대한전자공학회 학술대회 Vol.2020 No.11

지방 중소도시 원도심의 쇠퇴와 예측 그리고 대응방안 - 목포시 사례를 중심으로 -

김병섭(Byoung-Sub Kim),박성현(Sung-Hyun Park) 한국지방행정학회 2017 한국지방행정학보 (KLAR) Vol.14 No.3

The major point of today’s Urban Policy is the urban regeneration. 「Special Act on Promotion of and Support for Urban Regeneration」 was enacted in 2013 and The Urban Renewal Projects has been started mainly by 13 bellwether regions and 33 general regions since 2014. The tendency of urban regeneration has been maintained and increased its importance as the new government introduces ‘Urban Regeneration New Deal’. The 19th and 20th National Assembly already proposed rescissions of 「Housing Site Development Promotion Act」, enacted in 1980’s and led new urban development. Ministry of Land Infrastructure, and Transport also avoids the new large-scale residential development. However, Mokpo city, the case region of the study, announced to implement a residental development in opposition to the recent flows. Because of this, this study tries to find the following questions and prepare countermeasures. Firstly, Urban Regeneration is primarily discussed from a declining old downtown phenomenon. Why does it happen? Second. if we find out the cause of the declining phenomenon, can we come up with proper countermeasures? Considered the case of Mokpo city, the new government’s announced policy and explanation from Ministry of Land Infrastructure, and Transport, the ostensible reasons can be suggested for the movement of population, commercial area and administrative agency caused by developing the new town near the boundary of the old city. Then, why had the country been working hard on developing the new town? And what is the reason for Mokpo city to push hard on constructing the new town? This study has looked closely the case of Mokpo city for above questions and further discussed the counterplan for taking care of Mokpo citizen.

동북아시아의 근대공간 도시의 정의에 관한 소고

김병섭(Kim, Byoung-Sub),서순탁(Suh, Soon-Tak) 한국도시행정학회 2018 도시 행정 학보 Vol.31 No.3

오늘날 한국에서 국민의 대다수가 도시(都市)에 살고 있지만 도시가 관연 무엇인지에 대해 명확히 정의되어 있지 못하다. 본고에서는 도시를 정의함에 있어 특정한 모듬살이 공간이 도시로 명명된 시점과 공간의 변화에 주목하였다. 오래전부터 사람들은 모여 살았지만 사람들이 모여 거주했던 공간이 도시로 명명되지는 않았다. 그러므로 어느 시점에 무슨 이유로 특정한 모듬살이 공간이 도시로 명명되었는지를 알 수 있다면 도시에 대해 보다 명확히 정의할 수 있을 것이다. 동북아시아에서 사람들이 모여 사는 공간을 도시(都市)로 명명한 것은 일본 근대화의 시작인 메이지유신(明治維新) 이후부터이다. 그러므로 우선적으로 도시는 일본의 근대화세력에 의해 처음 조성되어 동북아시아에 널리 도입된 근대공간(近代空間)으로 파악된다. 본고에서는 1888년에 단행된 시구개정(市区改正)을 기점으로 죠카마치(城下町)인 에도(江戸)가 도시(都市)인 도쿄(東京)로 개조되면서 공간의 형태, 지배질서, 공간의 성격, 핵심지역의 구성, 사회·경제적 특성이 어떻게 바뀌었는지를 살펴보았다. 이러한 조사를 통해 본고에서는 동북아시아의 근대공간인 도시를 다음과 같이 정의하였다. 도시는 부(富)를 축적하기 위해 계획과 시장이라는 근대의 지배질서가 주로 작동하는 모듬살이 공간이다. In Korea, nowadays most people live in DOSI(都市). But there is no accurate definition of DOSI. This study payed attention to the time of naming a particular human settlement “DOSI” and the transformation of it. People have lived together for a long time. But people didn’t name the space living together “DOSI”. Therefore the time and reason of naming a particular human settlement “DOSI” can be the clue in defining accurately it. In Northeast Asia, People have used the term “DOSI” after Meiji Restoration(明治維新) in 1868, which was the starting point of Japanese modernization. Therefore preferentially DOSI is defined as the modern space made by Japanese modernization group for the first time and introduced widely in Northeast Asia. This study investigated Tokyo(東京), which was called Edo(江戸) Before Meiji Restoration. Edo was called Joukamachi(城下町), and nowadays Tokyo is called DOSI(都市). Through Shikukaisei(市区改正) in 1888, Edo(江戸) as Joukamachi(城下町) was remodelled to become Tokyo(東京) as DOSI(都市). This study investigated the differences of forms of spaces, ruling orders, characters of spaces, compositions of nucleus districts, and socioeconomic characters between Edo(江戸) as Joukamachi(城下町) and Tokyo(東京) as DOSI(都市). Through the investigation process, this study derived the definition of DOSI as modern space in Northeast Asia. DOSI is the space of human settlement made to accumulate wealth. It is worked mostly by planning and market, which are the modern ruling orders.

문화재의 관광적 활용에 관한 정책네트워크 분석

김병섭(Kim, Byoung-Sub),김영래(Kim, Young-Rae),서순탁(Suh, Soon-Tak) 한국도시행정학회 2012 도시 행정 학보 Vol.25 No.4

The objective of this paper is to investigate the characteristics of the policy network on the touristic application of cultural heritage. Here for the purpose of analysis, we categorize the composing elements of policy network into 1) organization and roles of the actors; 2) interests and common purposes of the actors; 3) different influences between the actors; and 4) interactive relations between the actors. We selected the Yeoncheon Jeongok-ri Paleolithic Festival as a case study which has been awarded as the best local festival for seven years by the central government. Data was collected through interviews with local officials and stakeholders, newspaper articles, project reports, and etc. Key findings are that the local government was intensively inter-related with academic field of archaeology which provided professional knowledge and experiences. And also residents were actively and volunteerly participated in the program under the strong support of Gyeonggi provincial government. These well established policy network seems to soften internal conflicts among actors and help produce good outcome.

남해 고홍군 연안 인공어초 어장의 폐기물 분포특성

김병섭(Byoung-Sub Kim),김대권(Dae-Kweon Kim),차병렬(Byoul-Ryul Cha),조재권(Jae-gweon Cho),서성호(Sung-Ho Suh),김창길(Chang-Gil Kim),오태건(Tae-Gun Oh) 한국마린엔지니어링학회 2009 한국마린엔지니어링학회 학술대회 논문집 Vol.2009 No.-

Waste were removed from artificial reefs of 6 type at Goheung in middle-south coast, Korea. The most much waste amount was removed in jumbo reefs which have complicated shape with 1,859 ㎏/㏊, contrary, waste amount at steel reef for soft sea-bottom was the most little with 121 ㎏/㏊. Waste in artificial reefs fishing ground was dominant combustibility waste. According to the correlation analysis, correlation-coefficient on amount waste and velocity showed significantly low with 0.003.

다중 센서 데이터 분석을 이용한 동적보정점 결정 기법

김병섭(Byoung-Sub Kim),김재훈(Jae-Hoon Kim) 한국경영과학회 2016 經營 科學 Vol.33 No.1

Focusing on the drastic increase of smart devices, machine generated data expansion is a general phenomenon in network services and IoT (Internet of Things). Especially, built-in multi sensors in a smart device are used for collection of user status and moving data. Combining the internal sensor data and environmental information, we can determine landmarks that decide a pedestrian’s locations. We use an ANOVA method to analyze data acquired from multi sensors and propose a landmark classification algorithm. We expect that the proposed algorithm can achieve higher accuracy of indoor-outdoor positioning system for pedestrians.

구조화이론을 통한 도심쇠퇴 분석

김병섭(Kim, Byoung-Sub),서순탁(Suh, Soon-Tak) 한국공간환경학회 2008 공간과 사회 Vol.30 No.-

최근 도심쇠퇴에 관한 관심이 도시재생과 맞물려 학계와 관계 그리고 실무계를 중심으로 커지고 있다. 이 연구에서는 행위와 구조를 변증법적으로 결합시킨 앤서니 기든스의 구조화이론을 통해 도심쇠퇴 현상을 설명하고자 했다. 도시연구에서 구조화이론은 지역의 제반조건과 행위자를 중시하는데 도시생태학과 정치경제학이 갖는 한계를 극복할 수 있는 유용한 이론이다. 아울러, 이 연구에서는 구축된 모델을 통해 동두천시의 도심쇠퇴를 분석해 모델의 적용가능성을 타진했다. 분석 결과 구조화이론이 도심쇠퇴 현상을 분석하는 데 유용하다는 결론을 보여주었다. 다만 구조화이론이 도시연구의 대안이론으로 자리매김하기 위해서는 다양한 사례연구를 통해 구조와 행위의 구체적 구성요소에 대한 일반적인 범주가 마련될 필요가 있다. Recently urban issues related to the inner city decline has attracted interest from policy-makers and academics in Korea. In this context this paper is aimed at explaining the inner city decline through Antony Giddens’ Structuration Theory combined structure with agency dialectically. Structuration Theory is a useful model which is overcome the limitation of urban ecology and political economy. In this paper the downtown decline of Dongducheon city is examined by using the Structuration Theory Model, and applicability of the model is proved. As a result of applicability of the model, it is very useful to explain a downtown decline phenomenon of a city. But, in order to place this model as an alternative theory of urban studies, general categorization of component of structure and agency by various case studies will be needed.

잘피 서식지 모니터링을 위한 딥러닝 기반의 드론 영상 의미론적 분할

전의익,김성학,김병섭,박경현,최옥인,Jeon, Eui-Ik,Kim, Seong-Hak,Kim, Byoung-Sub,Park, Kyung-Hyun,Choi, Ock-In 대한원격탐사학회 2020 大韓遠隔探査學會誌 Vol.36 No.2

잘피는 연안해역에 서식하는 해양수생관속식물로 해양생태계의 중요한 역할을 하고 있어, 주기적인 잘피 서식지의 모니터링이 이루어지고 있다. 최근 효율적인 잘피 서식지의 모니터링을 위해 고해상도의 영상 획득이 가능한 드론의 활용도가 높아지고 있다. 그리고 의미론적 분할에 있어 합성곱 신경망 기반의 딥러닝이 뛰어난 성능을 보임에 따라, 원격탐사 분야에 이를 적용한 연구가 활발하게 이루어지고 있다. 그러나 다양한 딥러닝 모델, 영상, 그리고 하이퍼파라미터에 의해 의미론적 분할의 정확도가 다르게 나타나고, 영상의 정규화와 타일과 배치 크기에서도 정형화되어 있지 않은 상태이다. 이에 따라 본 연구에서는 우수한 성능을 보여주는 딥러닝 모델을 이용하여 드론의 광학 영상에서 잘피 서식지를 분할하였다. 그리고 학습 자료의 정규화 및 타일의 크기를 중점으로 결과를 비교 및 분석하였다. 먼저 정규화와 타일, 배치 크기에 따른 결과 비교를 위해 흑백 영상을 만들고 흑백 영상을 Z-score 정규화 및 Min-Max 정규화 방법으로 변환한 영상을 사용하였다. 그리고 타일 크기를 특정 간격으로 증가시키면서 배치 크기는 메모리 크기를 최대한 사용할 수 있도록 하였다. 그 결과, Z-score 정규화가 적용된 영상이 다른 영상보다 IoU가 0.26 ~ 0.4 정도 높게 나타났다. 또한, 타일과 배치 크기에 따라 최대 0.09까지 차이가 나타나는 것을 확인하였다. 딥러닝을 이용한 의미론적 분할에 있어 정규화, 타일의 배치 크기의 변화에 따른 결과가 다르게 나타났다. 그러므로 실험을 통해 이들 요소에 대한 적합한 결정 과정이 있어야 함을 알 수 있었다. A seagrass that is marine vascular plants plays an important role in the marine ecosystem, so periodic monitoring ofseagrass habitatsis being performed. Recently, the use of dronesthat can easily acquire very high-resolution imagery is increasing to efficiently monitor seagrass habitats. And deep learning based on a convolutional neural network has shown excellent performance in semantic segmentation. So, studies applied to deep learning models have been actively conducted in remote sensing. However, the segmentation accuracy was different due to the hyperparameter, various deep learning models and imagery. And the normalization of the image and the tile and batch size are also not standardized. So,seagrass habitats were segmented from drone-borne imagery using a deep learning that shows excellent performance in this study. And it compared and analyzed the results focused on normalization and tile size. For comparison of the results according to the normalization, tile and batch size, a grayscale image and grayscale imagery converted to Z-score and Min-Max normalization methods were used. And the tile size isincreased at a specific interval while the batch size is allowed the memory size to be used as much as possible. As a result, IoU was 0.26 ~ 0.4 higher than that of Z-score normalized imagery than other imagery. Also, it wasfound that the difference to 0.09 depending on the tile and batch size. The results were different according to the normalization, tile and batch. Therefore, this experiment found that these factors should have a suitable decision process.

남해 중부해역에 시설된 인공어초의 보존상태

김대권(Dae-Kweon Kim),서성호(Sung-Ho Suh),최임호(Im-Ho Choi),김병섭(Byoung-Sub Kim),오태건(Tae-Gun Oh),손상규(Sang-Gyu Sonh) 한국마린엔지니어링학회 2009 한국마린엔지니어링학회 학술대회 논문집 Vol.2009 No.-

Installation position and state of 34,407 artificial reefs were surveyed over 4,762㏊ at Goheong coastal in middle-south sea of Korea from 1973 to 2003. 27,835 artificial reefs among total installed reefs were found out (80.9%), confirmed destroy rate of 0.6~1.2% by artificial reef type, and the most overturning rate of 5.5% was shown from Hemispheric reefs. Wastes such as fishing net or fish pot amount to 7.2t, and those were all removed by diver.

자궁경부암 환자에서 수술 후 림프절 전이가 확인된 경우 생존율에 영향을 미치는 예휴인자에 관한 연구

성정희(Jeong Hee Sung),김병섭(Byoung Sub Kim),이은희(Eun Hee Lee),윤창범(Chang Beom Yun),유상영(Sang Young Ryu),김종훈(Jong Hoon Kim),김병기(Byoung Gie Kim),박상윤(Sang Yoon Park),이의돈(Eui Don Lee),이경희(Kyung Hee Lee) 대한산부인과학회 1998 Obstetrics & Gynecology Science Vol.41 No.11

N/A The presence of metastatic lymph nodes in cervical carcinoma is one of the most important prognostic factors to survival. In general, the characteristics of metastatic lymph nodes such as number, site, and bilaterality etc. can modify the survival of patients with lymph node metastasis. This nonrandomized retrospective study was performed to identify prognostic factors for survival in patients with FIGO stage IA2, I B and IIA, IIB carcinoma of the cervix with nodal metastases. From January 1, 1993, to December 31, 1995, 86 patients with FIGO stage I A, I B and IIA, IIB carcinoma of the cervix were found to have nodal metastasis at the time of radical hysterectomy and pelvic lymphadenectomy at the Department of Obstetrics and Gynecology, Korea Cancer Center Hospital. The prognostic significance of number of metastatic lymph nodes, site(s) of lymph node metastases, cervical lesion size, age, FIGO stage have been evaluated. In this study, the 3-year disease free survival rate (DFSR) and clinical characteristics were compared with the prognostic factors. Univariate analysis revealed significant that number of metastatic lymph nodes (p=0.0008) and tumor size (p=0.0490) were significant prognostic factor, but there were no significant differences in 3-year DFSR according to age (p=0.1257), FIGO stage (0.4687), site(s) of lymph node metastases (p=0.5552). However, by multivariate analysis only number of metastatic lymph nodes (p=0.0248) was noted to be a significant prognostic factor determining survival of the patient. A risk of recurrence increased continuously in accordance with increased of the number of metastatic lymph nodes. In particular the 3-year DFSR fell markedly from 85.3% in patient with less than four metastatic lymph node to 25.9% in those with five or more metastatic lymph node (p=0.0008). These results demonstrated that the number of metastatic lymph nodes was the most important and independent prognostic factor in patients with cervical cancer showing lymph node metastasis.