대형 실내 공간에서 활용 가능한 퍼스널 모빌리티의 연구

김병헌,곽윤정,박하은,박수영,이지연,이희승 제어로봇시스템학회 2021 제어로봇시스템학회 국내학술대회 논문집 Vol.2021 No.6

The personal mobility vehicle (PMV) industry has grown faster due to the increasing interest and demand for PMV. On the other hand, few PMVs focus on a large indoor space. Research on indoor PMV is necessary because the needs of PMV get bigger and outdoor PMVs are inadequate in the indoor context. In this paper, the driving methods of recently proposed indoor PMVs - ‘AngGo’ and ‘mim’ - are studied. Both AngGo and mim are focused on indoor space, such as airports and convention centers, where people move long distances on foot. Pedal plate driving method that the rider pushes and pulls the pedal plate was selected for AngGo. The other driving method adopted for mim is to kick the ground, which utilizes simple and intuitive human behavior. The relationship between the form of indoor PMV and its driving method is discovered: a simple driving method for tall PMV and a meticulous driving method for low PMV. As a future study, we plan to invent a driving method suitable for indoor PMV and to design a new form of mobility device to apply the invented method.

점액 및 면역 세포화학적 Panel 염색에 의한 장액성 삼출액내 반응성 중피세포와 암종세포의 감별

김병헌,Kim, Byung-Heon 대한세포병리학회 1998 대한세포병리학회지 Vol.9 No.1

The cytologic distinction of carcinoma cells from reactive mesothelial cells can be difficult, especially in specimens containing abundant reactive mesotheilal cells and inflammatory cells with scant carcinoma cells. This study evaluates the usefulness of mucin and immunocytochemistry for discrimination between reactive mesotheilal cells and carcinoma cells, and sensitivity and specificity of these stains for the detection of metastatic carcinoma in serous effusions. Immunocytochemical panel including mucin cytochemistry with the periodic acid-Schiff(PAS) reaction after or without diastase digestion was undertaken on 127 serous effusion specimens with histologically confirmed diagnoses. The specimens including cell smears and cell blocks were stained with PAS and antibodies to carcinoembryonic antigen(CEA), epithelial membrane antigen(EMA), cytokeratln(CK), and vimentin. The sensitivities of these stains for metastatic carcinoma(127 cases) were 49%(46/94) in PAS, 48%(60/124) in CEA, 89%(97/109) in EMA, 88%(93/106) in CK, and 25%(20/81) in vimentin. The sensitivities of stains for reactive mesothelial cells(36 cases) were 19%(7/36) in EMA, 78%(28/36) in CK, and 75%(27/36) in vimentin. The PAS and CEA stains were not reacted with all cases of benign reactive serous effusions containing abundant reactive mesothelial cells. The specificities of stains for metastatic carcinoma(127 cases) were 100% in PAS, 100% in CEA, 81% in EMA, 22% in CK, and 25% in vimentin. The optimal combination of stains for use in a panel was PAS and CEA. Combined results from these two stains yielded an advanced sensitivity of 8% in PAS and 4% in CEA for metastatic carcinoma. EMA was also cosiderably useful for identification of carcinoma cells. CK and vimentin were not suitable for distinguishing between reactive mesothelial cells and carcinoma cells.

孝宗大王 寧陵의 擇山 논쟁

김병헌 조선시대사학회 2014 朝鮮時代史學報 Vol.69 No.-

As Hyojong, 17th king of Joseon dynasty, died on May 4th, 1659, Sanreungdogam began to look for an appropriate mountain for a royal tomb. After looking for more than 30 places at first search, they concentrated on Suwon and Hongjedong. During a discussion on these two options, Gang Yoon, the Minister of Culture and Education, insisted on Suwon, while geomancers headed by Sundo Yoon and vassals including Siyeol Song and joongil Song insisted on Hongjedong. On Gang Yoon's contention for Suwon, Hyeonjong's will, which avoided Hongjedong because of long distance, was reflected. Though both Hongjedong and Suwon are lucky places, Sundo Yoon kept his argument on Hongjedong in terms of the theory of divination based on topography. On the other hand, vassals didn't want to concede their point about Suwon's incongruity. As Hyeonjong picked Suwon, vassals desperately opposed and suggested Gunwonreung for an alternative. During this, Sundo Yoon expressed his thought that Suwon is a better choice rather than Gunwonreung though he rarely participated in due to health issues. The extreme argument between Hyeonjong who maintained his opinion on Suwon and vassals who wanted Suwon for the last and suggested Hongjedong finally ended as Gunwonreung was selected which was led by Joongil Song's presentation about Suwon's secret record. 1659년 5월 4일 조선의 17대 孝宗이 승하하자 산릉도감에서는 경기 일원의 吉地를 대상으로 山陵을 쓰기에 적합한 산을 찾아 나섰다. 1차 看審에서 30여 곳 이상을 살펴본 결과 수원부와 弘濟洞으로 압축되었다. 이 두 곳을 두고 논의를 진행하는 과정에서 예조판서 尹絳은 수원부를 주장하였으나, 현장에서 간심을 진행한 尹善道를 비롯한 지관들, 宋時烈․宋浚吉을 비롯한 대신들은 홍제동을 주장하였다. 윤강이 수원부를 주장한 데는 거리가 멀다는 이유로 홍제동을 기피한 顯宗의 뜻이 반영되어 있었다. 윤선도는 홍제동과 수원부 모두 千載一遇의 吉地이나 풍수적 여건만을 고려할 때는 홍제동이 상위라는 주장을 견지했다. 그런가 하면 대신들은 서울의 關防이자 군사적 요충지인 수원부는 결코 國陵에 적합하지 않다는 주장을 굽히지 않았다. 우여곡절 끝에 수원부로 결정이 나자 대신들은 이를 극력 반대하며 수원부 대신 건원릉 內岡을 대안으로 제시했다. 이 과정에서 윤선도는 병으로 거의 참여하지 못하였으나 수원부와 건원릉 내강의 풍수적 우열에서 수원부가 상위임을 주장하였다. 시종일관 수원부를 주장한 현종과 수원부만을 피하고자 홍제동을 주장했다가 다시 건원릉 내강을 주장한 대신들과의 극한 대립은 宋浚吉이 제시한 수원 秘記로 현종이 뜻을 꺾으며 건원릉 내강으로 결론이 났다.

국산 에폭시 아스팔트 혼합물의 물리·역학적 특성 평가

김병헌,백종은,이현종,박희문 한국도로학회 2012 한국도로학회논문집 Vol.14 No.1

This study evaluated the performance of Korean epoxy asphalt mixtures using several laboratory tests. Four types of epoxy asphalt mixtures were manufactured based on 13mm dense graded asphalt mixtures: three Korean and one Japanese epoxy asphalt mixtures where 20% or 40%of asphalt binder was replaced by epoxy resins. Curing time was determined as 3 and 6 hours for the mixtures containing 40% and 20% of epoxy resins, respectively. From the laboratory tests including wheel tracking, indirect tension fatigue, bending beam, and moisture susceptibility tests, it was concluded that the epoxy asphalt mixtures had superior performance than conventional asphalt mixtures except moisture susceptibility. Also, the performance of the Korean epoxy asphalt mixtures was comparable to the Japanese mixtures. Thermal coefficient, bond strength, and indirect tension tests were conducted to examine the applicability of the Korean epoxy asphalt mixtures to concrete repair. Its adhesion was strong enough to be bonded to surrounding concrete materials and its tensile strength was comparable to the concrete, but thermal expansion coefficient was 5 times greater than the surrounding concrete. 본 연구에서는 다양한 실내시험을 통하여 국내에서 개발된 에폭시 아스팔트 혼합물의 공용성을 평가하였다. 최대입경13mm의 밀입도 혼합물을 기초로 하여 아스팔트 바인더의 20% 또는 40%를 국산 및 일본산 에폭시 수지로 치환하여 4종류의 에폭시 아스팔트 혼합물의 배합 설계를 실시하였다. 에폭시 아스팔트의 가사시간이 에폭시 수지가 40% 사용한 경우 3시간, 20% 사용한 경우 6시간 정도임을 확인할 수 있었다. 휠트랙킹 시험, 간접인장 반복시험, 그리고 저온 휨 시험 결과 국산및 일본산 에폭시 아스팔트 혼합물의 공용성이 일반 아스팔트 혼합물 보다 상당히 우수한 것으로 나타났다. 하지만 일부 에폭시 아스팔트 혼합물에서는 수분손상 가능성을 확인할 수 있었다. 또한 일본산 에폭시 아스팔트 혼합물과 국산 에폭시 아스팔트는 유사한 성능을 나타냈다. 또한 콘크리트 보수재로 개발한 국산 에폭시 아스팔트의 적합성을 평가하기 위하여 추가적으로열팽창계수, 부착강도, 인장강도를 측정한 결과, 일반 콘크리트와의 부착력은 우수하고 인장강도는 유사한 것으로 나타났으나열팽창계수는 5배 정도 큰 것으로 나타났다.

현대미술의 문제 : 미술의 종말에 대한 두 가지 입장을 중심으로

김병헌 조선대학교 조형미술연구소 2007 조형미술논문집 Vol.7 No.1

관광 및 항공 정책의 상호 작용과 연계성에 대한 연구

김병헌 한국관광진흥학회 2014 관광진흥연구 Vol.2 No.1

Water gas shift reaction kinetics and reactor modeling for compact fuel processor system

김병헌,김화용 한국에너지학회 2010 한국에너지공학회 학술발표회 Vol.2010 No.10

해직 언론인 복귀 가장 먼저 해결해야

김병헌 관훈클럽 2013 관훈저널 Vol.- No.126

[수필] 화초 가꾸기

김병헌 고시계사 2021 考試界 Vol.66 No.8

癩細胞의 微細構造變化와 그 病理學的 意義

金秉憲 慶北大學校 醫科大學 1976 慶北醫大誌 Vol.17 No.2

Lepromatous leprosy의 피부병소에서 절취한 조직을 전자현미경적으로 검색한 결과를 요약하면 다음과 같다. 1) 나세포에서 관찰된 lysosomal variety는 형태학적으로 opaque droplet, foamy structure 및 leprosy inclusion의 3가지로 대별할 수 있다. 2) Leprosy inclusion 및 globi로 존재하는 나균은 enzymatic digestion에 의해서 소화된다기 보다는, 오히려 phagocytic vacuole내에 증식이 계속되므로 일어나는 기아현상으로 인해 변성자가용해되리라고 본다. 3) Free cytoplasmic opaqule droplet는 대식세포내에서, 균이 소화 분해된 마지막 산물로 추정되며 이들은 de Duve의 postlysosome 즉 residual body와 일치하는 것 같다. The author studied the subcllular organelles of lepra cells and their pathologic significances in the skin lesion. Punch biopsies from the grossly active skin lesions were obtained from five confirmed lepromatous leprosy patients attending to Depatment of Dermatology of Kyungpook National University Hospital and Taegu Fatima Hospital. The paraffin embedded tissue sections were examined under the light microscope with the aids of hematoxylin and eosin staining and Ziehl-Neelsen staining. The ultrathin sections embedded in epoxyresin medium were prepared by Reynold's electron double staining and examined under the electron microscope. The results obtained were summarized as follow: In the light microscope, all biopsies showed extensive cellular infiltration in the dermis including numerous macrophages containing large numbers of acid fast bacilli. In the electron microscope, three special morphologic types of lysosomes were recognized in the Virchow cells. They were regarded the organelles previously reffered to as opaque droplets, foamy structures and leprosy inclusion respectively.