BACnet 빌딩제어망에서 통합접근제어 방안

조인준, 송태기 배재대학교 공학연구소 2018 공학논문집 Vol.20 No.1

현재 빌딩시설 관리를 위한 SCADA 제어시스템은 통신 프로토콜로 BACnet을 사용하고 있다. 빌딩 제어망 영역에서 사용되고 있는 BACnet은 인터넷 영역의 통신프로토콜과는 달리 보안에 대한 연구가 미비하다. 따라서 각종 사이버 공격의 대응책으로 BACnet 기반 통합접근제어 시스템이 존재하지 않아 해킹 위협에 노출되어 있다. 문제는 인터넷 영역의 통합접근제어 기술을 제어망 영역인 빌딩시설망에 그대로 적용이 불가능하다는 점이다. 또한 인터넷 영역의 기존기술을 제어망 영역에 맞춰 재개발 한다 하여도 고비용의 문제가 발생한다. 따라서 본 논문에서는 BACnet기반 빌딩 시설망의 특성을 반영한 새로운 통합접근제어 방안을 제안하였다. Currently, the SCADA control system for building facility management uses BACnet as a communication protocol. BACnet, which is being used in building control network areas, has little to do with security, unlike communication protocols in the Internet domain. Therefore, the BACnet-based integrated access control system does not exist as a countermeasure against various cyber attacks, and is exposed to hacking threats. The problem is that it is not possible to apply integrated access control technology of the Internet area to building facilities, which is a control network area. Also, retrofitting existing technologies in the Internet domain to the control network area creates high-cost problems. Therefore, this paper proposed a new integrated approach control plan that reflected the characteristics of the BACnet-based building network.

중증 임신성 혈소판감소증 분만 1예

이태화,이천준 고신대학교의과대학 2007 고신대학교 의과대학 학술지 Vol.22 No.2

Gestational thrombocytopenia can be defined either as a specific disorder or as a group of thrombocytopenic disorders that occur in pregnancy. Some physicinas have defined gestational thrombocytopenia as the benign thrombocytopenic disorder that occurs in pregnancy at a relatively high frequency. But severe Gestational thrombocytopenia(platelets<5,000/mm3) is rare. The pathogenesis of thrombocytopenia in the gestation is not fully understood. The primary goal in managing a gestational thrombocytopenia is to deliver a healthy infant without unwarranted risk to the mother's health. We experienced a case of delivery in severe gestational thrombocytopenia so we report this case with a brief review of literature.

커뮤니티 개념을 적용한 도시하천 수변공간 정비방안에 관한 연구

김형태,이윤남,장준호 안양대학교 산업기술연구소 2002 自然科學硏究 Vol.9 No.-

급속한 도시화의 과정에서 기존의 도시하천정비는 공공의 논리로 이수, 치수목적에 큰 비중을 두었다. 그 결과 도시하천의 생태계 파괴는 물론, 획일적인 개발형태로 인하여 경관에 많은 문제점을 지니게 되었고, 특히 대도시 내에서의 하천은 그 경향이 심각하게 나타나게 됨에 따라 도시민에게 외면당하고 있는 실정이다. 따라서 본 연구에서는 이러한 문제점 해결방안으로 커뮤니티 개념을 적용한 접근 방법을 시도함으로써 새로운 문화와 상징을 창출하고 해당지역 주민에게 정비사업에의 참여를 통한 지역애와 지역공동체성을 함양시킬 수 있는 새로운 방안을 모색해보고자 한다. During the rapid urbanizing period, consolidating the urban waterfront system was likely to be regarded to leave the water or to regulate waterfront by the public logic. According to this research as a result, we have a lot of problems not only about the destruction of ecosystem but also about their appearance by the exact same development forms. As the problem is being more serious in the metropolitan areas, the residents don't care any more. So here, we are trying to solve this problem by approaching the concept of the community planning, so that we can creat the new cultural symbol and also we can make the fascinating space that people can feel their place more like home and give them comfortable through citizen participation.

공기공급방식별 계분 퇴비화의 분해율 비교에 관한 연구

金丙泰,安俊帥,朴泰術 대진대학교 1994 大眞論叢 Vol.2 No.-

Composting has had little practical use in solid wastes disposal until now because of a lack of understanding of process control. Ventilation control was reported to be convenient to operate and maintain good product quality during composting. This study was carried out to compare the degration rate and evaluate optimum temperature for composting of poultry manure by the aeration method. Substrate losses were investigated by the degradation rate of total, dry, volatile matter, carbohydrates, lipids and proteins. The optimum temperature for composting of poultry manure was estimated by the CO₂ production rate and O₂consumption rate. The period of initial heating stage, thermophilic stage and transition stage in the temperature feedback aeration method was longer 2days than that of constant aeration method The degradation rate in the temperature feedback aeration method was higher than that in the constant aeration method The degadation rate in both aeration methods peaked in the thermophilic region. Dry matter was degraded about 58~59% until the thermophilic region. The variation of gas exchange was similar to that of temperature On the basis of the recommened range of CO₂ production rate and O₂ consumption rate, the optimum temperature range for composting of poultry manure appears to be below 60℃.

Euonymus alatus추출물의 실험적 당뇨발생 억제효과

김태중,송희종,소준노,이정호 大韓免疫學會 1996 大韓免疫學會誌 Vol.18 No.4

Insulin-dependent diabetes mellitus (IDDM) is majorly caused by an immune system-mediated destruction of the beta cells in the islets of Langerhans. Patients with IDDM face major changes in lifestyle and the possibility of debilitating and life-threatening complications. In Korean traditional medicine, Euonymus alatus (EA) extract has been widely used for preventing and curing ulcer and inflammation. A previous study has shown that EA itself has an antidotic activities against inflammation, suggesting possibility that EA can exert this beneficial effects to IDDM by an initial protection against diabetes caused by pancreatic inflammation. The present study was undertaken to evaluate the prophylactic effect of EA extract on the diabetogenesis of streptozotocin (STZ) and alloxan (ALX), using animal model, and to explore the possible mechanisms of its antidiabetic activity. Multiple low doses of STZ (45 mg/Kg for 5 days) in ICR mice and single dose of ALX (60 mg/Kg) in SD rats induced high level of hyperglycemia (defined as plasma glucose level > 300 mg/dl) and remarkably diminished body weight. But, animals that received diabetogenic agents in combination withsEA were maintained plasma glucose level as a normal state ( < 150 mg/dl), and appeared in good health and had similar weights to those of normal control. These results strongly indicated that EA prevented and blocked diabetogenesis of chemicals. EA significantly inhibited the nitric oxide- and tumor necrosis factor-production of mouse peritoneal macrophages. However, EA enhanced interleukin 1 production of macrophages at lower concentration but not at higher. EA itself increased phagocytic activity of unstimulated monocytes, but it did completely block that activity of zymosan- or platelet activating factor-stimulated cells. Taken together, this study led to conclusion that EA itself has a significant prophylactic effects against diabetes, and also suggested that its antidiabetic effects might be manifested by the downregulation of inflammatory process in diabetogenesis.

濟州道 大學生의 政治意識에 관한 調査硏究

金泰保,高性俊,金恒元 제주대학교 1987 논문집 Vol.24 No.1

The purpose of study is to synthetically understand political consciouness of university student in cheju. In the level of contents it is classified into Politics, Ideology, Economy, Society, Unification-Security, North Korea and in the level of behavior this contents are classified into cognition, affection, and will based on the theory of attitude construction. The data used in this study are based on the questionaire survey. 860 students questionaires were collected, but 567 students were actually examined in this investigation. Questionaire is composed of 55 items for answer and these items were measured by Likert scale. The analysis had been processed by means of average (M), percentage(5) and F check. As a result, statistics show that the answer for the question of the urgentist problem in Korea is political development. Those who recognize that in politics politican is more important than institution are 88%. To the possibility of mutual consent for the amendment of a constitution, half (51.5%) students say yes. In Ideology, most students understand marxism is a mixture of violence and humanism and the relation between bourgeois and proletariat is antagonistic. Half students believe that marxism is applicable to modern society. In defendency of liberal democracy 88.6% of students are determinate. In Economics dimension, the prospect of Korean Economy development is positive as much as 68.6%. Most recognize that capitalistic system is superior to socialistic system and S. K. Economy is much higher than N. K. and the opinion and anxiety that our economy is dependent to the U. S. A. and Japan is expressed highly (67.5%). In societal dimension, most students expressed our society has the serious problem of economic inequality. In Unification-Security, less than half students understand the peaceful unification policy of R.O. K., but most agree with the presence of U. S. Army in korea. To the North Korea, almost understand N. K. military forces is much stronger than R. O. K. and N. K. is trying to attack S. K. they also have deep pity for the North Korean residents.

경주지역 여고생의 초경과 체성장간의 관계

김준섭,권오구,박진석,오종수,박정현,박제식,안세한,이용환,서정호,신태섭,최영배,김덕수,이관,박수경 東國大學校醫學硏究所 2002 東國醫學 Vol.9 No.1

본 연구는 경주지역 1개 고등학교 3학년 여고생을 대상으로 초경 시작 전인 초등학교 4학년부터 고등학교 2학년까지의 키, 몸무게, 가슴둘레 수치와 초경 연령을 파악하여 여성의 초경이 빠를수록 체성장 속도의 변화가 있을 것이라는 가설을 기초로 두 요인간의 관련성을 파악하고자 시행되었다. 경주시 1개 여자고등학교 3학년생 총 317명에 대해 ㅊ경 나이, 초경시 심리 상태, 초경이 시작되었을 때의 상담 여부와 상담하였던 사람, 부모 신장과 초경전후의 식사 규칙성, 다이어트 경험, 수면시간, 스트레스, 음주/흡연 여부, 질병력 등에 대한 설문 조사를 시행하였고, 초등학교 4학년부터 고등학교 2학년까지의 키, 몸무게, 가슴둘레에 대한 정보는 건강기록부에서 확보하였다. 상기 대상자 중 건강기록부가 분실된 39명, 초경나이에 대해 응답하지 않았던 29명 및 결석 등으로 조사를 하지 못하였던 42명을 제외한 조사 대상자는 206명으로 선정하였다. 대상자들의 초경연령 평균값(Mean±SD)은 13.0±1.11이었고, 초등학교 4학년부터 고등학교 2학년까지의 초경 이후 신장 성장률은 감소하였으며, 초경연령이 빠른 군이 초등학교 때는 신장에 있어서 우위를 차지하나 고등학교에 오면서 신장은 비슷한 수준이 되었다. 초경후 1-2년 사이에 체중과 흉위의 증가율은 감소하였고, 초경연령이 빠른 군이 초등학교와 고등학교 사이에 체중과 흉위에서 모두 우위를 차지하였다. 본 연구의 결과는, 흔히 이차 성징의 시작 시점 혹은 사춘기의 시작 시점으로 보고있는 초경 연령이 청소년기의 성장과 밀접한 관련성이 있고, 특히 체중과 흉위의 성장 속도와 밀접한 관련성이 있음을 시사한다. To understand the onset of menarche in relation to changes in physical growth that take place during female adolescence, especially the changes in height and weight velocity. The 207 senior in one women high school of Kyongju were investigated in April 3 to 8, 2001. We collected the information, relation in the age at menarche, height & weight of parents, regularity of eating, and obesity diet, duration of sleeping, sickness & stress near age at menarche, by self-recording. The status of height, weight & chest circumference between the 4th grade of primary school and the junior of high school was collected by individual Health Record. The results were followed; The average age at menarche was 12.95±1.11 years old and the most frequent age of menarche is 13 years. After menarche, the velocity of height, weight and chest circumference were decreased. The most rapid group of menarche hold dominant position in height during elementary school. As time passed, they dont hold dominant position in height. The most rapid group of menarche get an advantage in the weight and the girth of chest after elementary school. The height of subjects is directly proportional to the height of their parents. These results suggest that the starting age at menestuation can be closely associated with physical growth and development.

만성 요통증 환자에 대한 록소닌 (Loxoprofen sodium)의 임상적 효과에 대한 연구

이준규,김경태,오기영 충남대학교 의과대학 지역사회의학연구소 1995 충남의대잡지 Vol.22 No.1

We conducted a clinical effectiveness and safety of Loxoprofen sodium, a nonsteroidal antiinflammatory drug(NSAID) for the treatment of chronic low back pain. Loxoprofen sodiun 180 mg/day(60 mg three time daily) was administered to 30 patients with chronic low back pain associated with a range of arthritic disorders, for a period up to 4 weeks, and clinical efficacy was evaluated by objective and subjective methods. 4 weeks therapy, loxoprofen showed subjective improvements of 100%, 64.7% and 63.6% in patients with mild to moderate, moderate to severe, and severe lumbar pain etc, respectively. Objective and subjective improvements were significant after only 1 week therapy in patients with mild to moderate pain and after 4 weeks, over all intensities of pain were improved. The incidence of adverse effects over this study population was extremely low, affecting only 3.3% of patients, and were mild in nature and edematous change. Loxoprofen is thus a well-tolerated NSAID in the treatment of chronic lumbar pain.

경골고원부 골절에 대한 임상적 고찰

이준규,정태성 충남대학교 의과대학 지역사회의학연구소 1986 충남의대잡지 Vol.13 No.2

Now, incidence of tibial plateau fracture so called bumfer fracture is increasing because of development of industry and traffics. This fracture has some problems such as involvement of important weight bearing joint, uncertain prognosis, difficulty of diagnosis and treatment about soft tissues injury into the joint and operative indication. For the purpose of studying the problems, we analysed 24 cases of fractured tibial plateau, who admitted to CNUH Orthopaedic dpt. during 5 years from Feb. 1981 to Feb. 1986. We concluded such as 1. Sex and age distribution was male (83%) and middle age (75%) predominant. 2. Traffic accidents (84%) were main cause of fractures. 3. Along the Hohls classification, comminuted type (Type Ⅵ) was predominant (33.5%). 4. The rate of associated injuries were high (66.7%). 5. Associated soft tissue injures into the joint were 6 cases (27%), showed usually the poor prognosis. 6. Results of the operative or nonoperative treatment were nearly same but poor open reduction and internal fixation compared to nonoperative treatment was worse prognosis.

韓國人의 梅毒血淸學的樣相에 對한 調査硏究(第1報)

金景俊,정태화 國立保健硏究院 1977 국립보건연구원보 Vol.14 No.-