• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2003년도 춘계학술대회논문집
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• pp.742-748
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• 2003

As for marine propulsion shafting system using 4 stroke diesel engine, it is common to apply reduction gear box between diesel engine and shafting with a view of increasing mechanical efficiency, which inevitably require elastic coupling due to avoid chattering and hammering inside of gear box. In this study, optimum method of rectifying propulsion shafting system in case of 750ton fishing vessel specially in a view of torsional vibration, is theoretically studied. After exchange of diesel engine and gear box, analysis result of torsional vibration get worse and so some countermeasure are needed. The elastic coupling is modified from present block type rubber coupling showing relatively high torsional stiffness to rubber coupling with two series elements directly connected. The vibration measurement using two laser torsion meters was done during sea trial, whose results are compared to those of calculation and verified.

• 한국멀티미디어학회논문지
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• 제11권6호
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• pp.787-795
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• 2008

Human recognition on camera is an interesting topic in computer vision. While fingerprint and face recognition have been become common, gait is considered as a new biometric feature for distance recognition. In this paper, we propose a gait recognition algorithm based on the knee angle, 2 feet distance, walking velocity and head direction of a person who appear in camera view on one gait cycle. The background subtraction method firstly use for binary moving object extraction and then base on it we continue detect the leg region, head region and get gait features (leg angle, leg swing amplitude). Another feature, walking speed, also can be detected after a gait cycle finished. And then, we compute the errors between calculated features and stored features for recognition. This method gives good results when we performed testing using indoor and outdoor landscape in both lateral, oblique view.

• 한국정보과학회:학술대회논문집
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• 한국정보과학회 2002년도 가을 학술발표논문집 Vol.29 No.2 (1)
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• pp.202-204
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• 2002

인터넷 상에 산재하는 분산이질 형태의 자료들에 대한 효율적인 검색을 지원하기 위해서는 이 들 문서들의 구조를 새로운 정보 구조로 통합하여 사용자에게 제시하여야 한다. 본 논문에서는 DTD 또는 XML Schema를 기반으로 하는 XML 문서의 공통 뷰 설계를 위한 공통 데이터 모델과 처리 방식을 제안한다. 계층, 상속, 복합 등의 다양한 구조 처리를 위한 XML 문서의 경로 정보, 관련성이 있는 요소들의 연결에 이용되는 연관값, 소스 매핑 정보 등으로 구성된 복합 필드 구조를 갖는 트리형의 새로운 공통 데이터 모델을 정의한다. 또한 XQuery 기반의 공통 뷰 정의 질의 기능과 공통 데이터 구조상의 질의 처리 방식을 보인다.

• International Journal of Internet, Broadcasting and Communication
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• 제13권1호
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• pp.82-89
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• 2021

Recently, applications are increasing the importance of security for published documents. This paper deals with data-publishing where the publishers must state sensitive information that they need to protect. If a document containing such sensitive information is accidentally posted, users can use common-sense reasoning to infer unauthorized information. In recent studied of peer-to-peer databases, studies on the security of data of various unique groups are conducted. In this paper, we propose a security framework that fundamentally blocks user inference about sensitive information that may be leaked by XML constraints and prevents sensitive information from leaking from general user. The proposed framework protects sensitive information disclosed through encryption technology. Moreover, the proposed framework is query view security without any three types of XML constraints. As a result of the experiment, the proposed framework has mathematically proved a way to prevent leakage of user information through data inference more than the existing method.

• Journal of Preventive Medicine and Public Health
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• 제17권1호
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• pp.75-83
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• 1984

A retrospective study has been made of 170,026 cases of motor vehicle accidents which had been reported to the National Police Headquarters of Republic of Korea, 1983. Also a study has been made of 264 cases of road traffic casualties who were treated at the Eul-ji General Hospital from Jan. 1, 1983 to Dec. 31, 1983. This study was conducted to find out the nature and pattern of the traffic accidents from the clinical and epidemiological view points. In additions, the modes of injury from the road accidents were persued which might help to reduce the traffic accident rate. The results of the study were summarized as follows; 1. In this study, the highest incidence was in the age group between $21{\sim}30$ years (21.29%). And the age group of highest death rate was under 10 years (7.28%). 2. In the comparison of sexual differences, male was dominated in accidents number and death rate. (Casualty rate; 61.66%). 3. In the comparison of each hour differences, the accident was mostly occured during afternoon from 16:00 to 18:00(12.23%). 4. The most common day of week was Sunday (14.74%). 5. The most common season of year was Autumn (27.92%). 6. In the comparison of occupational differences, the high incidences were showed in labor men (31.06%) and business men (12.12%). 7. In the comparison of accidental vehicles, the most common vehicle were cars and the next were trucks and buses. 8. The most common mechanism of accidents was collision (57.41%). 9. In the comparison of clinical differences, orthopaedic and neurosurgical injuries were most common types of the hospitalized casualties. 10. In the comparison of anatomical fracture sites, the most common site was tibia (15.81%) and the next site was femur (12.56%).

• 정보과학회 논문지
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• 제44권5호
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• pp.476-485
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• 2017

미래 대공 유도무기체계 전술작전센터는 미래 공중위협, 전술정보, 통합전장 환경 생성 및 관리, 교전통제 및 지휘통제 알고리즘 연구를 위한 환경을 제공한다. 통합전장상황 생성 및 처리, 전술작전 자동화 처리 핵심 기능요소에 대한 개발을 위해서는 다역할(포대/대대) 전술작전 통제 및 재구성 설계가 가능한 소프트웨어가 필요하다. 따라서 기능 별 알고리즘 소프트웨어, 전술작전화면 소프트웨어, 장비들 간 연동을 위한 링크 소프트웨어를 데이터 중심 설계를 통해 재구성 가능하도록 개발하였다. 본 논문에서는 포대/대대 별 전술작전 운용화면에 재구성이 가능한 전술작전화면 프레임워크를 소개한다. 전술작전화면 프레임워크는 포대/대대 및 임무별 다역할 전술작전화면을 재구성 가능한 구조를 위해 공통데이터 모델설계와 MVC패턴을 이용한 화면구성도구를 개발하였다. 화면구성도구를 이용하여 화면 개발을 위한 전술작전화면 프레임워크를 제공한다. 전술작전화면 프레임워크를 이용하게 된다면 공통기반의 구조를 통해 화면 설계를 재사용 할 수 있다. 또한 쉽고 빠르게 재구성이 가능한 화면을 개발할 수 있을 것이다.

• 철학연구
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• 제131권
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• pp.331-352
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• 2014

이 글은 홉스의 <인간론>와 <시민론>을 중심으로 그의 인간관과 국가관을 기존의 많은 견해와 달리 해석해볼만한 가능성을 모색한다. 홉스의 인간관과 국가관에 대한 기존의 견해는 인간의 본성은 이기적이므로 자연상태에서는 만인에 대한 만인의 투쟁이 있을 뿐이라는 것이다. 인간의 이런 이기적 성향을 억제하기 위해 각 개인은 상호간의 계약을 통해 국가를 수립하여, 자신을 국가권력(통치권/주권)에 절대적으로 복종시킴으로써 자기를 보존한다는 것이다. 이런 입장에서는 국가가 개인에 대해 절대적 우위를 차지하며 개인의 자유와 자율성을 억압하는 것으로 보일 수도 있다. 이와 달리 이 논문은 모든 인간의 본성이 이기적인 것이 아니라 이기적인 인간도 있다는 것을 밝힌다. 국가가 각 개인을 억압하는 것이 아니라 국가권력을 통해 이기적인 인간의 공격성을 통제함으로써 개인의 안전과 평화에 대한 '희망'을 제공하는 기능을 갖는다고 파악한다. 따라서 개인은 이 희망을 보장받지 못한다면, 국가권력에 복종할 필요나 의무가 상실된다. 오히려 희망을 보장받지 못하면 국가권력은 국가권력이 아니라 적의 무력일 뿐이므로 자연법에 따라 다시 전쟁상태로 환원되어 적과 전쟁할 수도 있다고 본다. 여기서 홉스가 국가를 '사멸적 신'이라고 한 의미를 파악할 수 있다.

• 대한한의정보학회지
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• 제19권1호
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• pp.1-34
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• 2013

Objectives : A common cold is a viral disease. There exists only allopathy for it depending on symptoms because of no cure. Korean medicine has taken a serious view of common cold patients with digestive problems as well as patients of the common cold. Accordingly, this study is aimed at finding out the traits of patients with digestive problems among common cold patients. Methods : A survey was conducted with 62 cold patients who got medical treatment in Korean medicine clinics located in small cities and towns including metropolitan cities. The SPSS for Windows( 19.0 Version) was used for statistical analysis. Results : Depending on which clinic common cold patients decided to go to, there was a significant difference in the number of sick days. The group of patients who decided to go straight to oriental medicine clinics had fewer sick days. Only 9.7% of the group of patients who got treatment in Koean medicine clinics had more than 6 sick days. The group of common cold patients with digestive problems had more sick days than the group with no digestive problems, which showed that there was a significant correlation between digestive problems and sick days. When it came to digestive problems depending which clinic common cold patients decided to go to, there was no significant value because of little data collection. However, while 41.9% of the group who went to hospital at first and then to Koean medicine clinic had digestive problems, 24.2% of the group who directly went to Koean medicine clinic had digestive problems. On the whole, 66.1% of the entire common cold patients were shown to have digestive problems. Conclusion : There are relatively many patients with digestive problems among common cold patients, and there is a significant correlation between digestive problems and sick days on common cold.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2000년도 하계종합학술대회 논문집(1)
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• pp.93-96
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• 2000

The CMIP(Common Management Information Protocol) and SNMP(Simple Network Management Network) are the two major network management protocols, Which nee to be integrated. Since the networks need to be managed in a uniform way, the CORBA(Common Object Request Broker Architecture) NE View is to develop as a Standard in the ATM Forum For the TMN management structure to integrate these two protocols. In this paper, the function classes are defined to develop the gateway for efficient subnetwork management. The function classes are defined based on the analysis of EMS functions which are mainly network management design of the TMN structure. Also, the object models of the SMI)(Structure of Management Information) in SNMP and the GDMO(Guidelines for the Definition of Managed Objects) in CMIP are developed way direct translation and abstract translation. The integrated management system design, information model translation of EMS using classdefinition, is efficient is efficient method to interconnect CORBA/SNMP and CORBA/CMIP.

• Asia pacific journal of information systems
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• 제4권2호
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• pp.83-130
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• 1994

Software development of large scale program such as Operating System or University Total Information System is lengthy and costly process. In order to reduce cost, time and risk, there is currentry general acceptance of the need for Software Reuse System during the whole development cycles. In this paper, (from a practical point of view), the problem of existing reuse system methodology is analyzed and an implement method of software reuse system is presented. Also using this method Application Program Reuse System(APRS) which supports all phase of software life cycles is designed and implemented. This application program reuse system which is based on common language is considerably shown to reduce communication Error of requirement specification between systems analyst and end-user.