• 제목/요약/키워드: Material Information-oriented

검색결과 90건 처리시간 0.027초

보안교육과 보안관리 역량의 상관관계 분석: 인가된 내부자 기밀유출사례를 중심으로 (An Analysis of Relationship between Industry Security Education and Capability: Case Centric on Insider Leakage)

  • 이치석;김양훈
    • 한국전자거래학회지
    • /
    • 제20권2호
    • /
    • pp.27-36
    • /
    • 2015
  • 국가 상대로 한 국가기밀유출과 더불어 최근 산업 기술유출은 점점 늘어가고 유출의 범위가 기술유출 중심에서 정보통신, 전기전자, 방위산업, 전략물자 불법수출, 외국의 경제 질서교란, 지식재산침해 등 신 경제안보 분야로 다양화되는 추세로 유출 피해는 유출된 기업에 피해를 줄 뿐만 아니라 국가의 이익과 국내 산업 전반에 영향을 끼칠 수 있다. 국가정보원 산업기밀 보호센터 통계에 따르면, 기술유출의 주된 원인은 해킹과 악성코드와 같이 외부에 의한 것뿐 아니라 전 현직직원 등 내부유출이 약 80%를 차지하며, 협력업체 의한 기술유출이 뒤를 이어 금전유혹과 개인의 이익으로 인한 기술유출이 계속해서 꾸준히 증가하고 있다. 그러나 그간의 연구들은 핵심자산 유출을 방지하기 위하여 기업의 보안역량을 측정하거나, 관리를 위한 측정지표를 개발하는 연구가 주를 이루고 있었으며, 가장 핵심이 되는 기업구성원들의 보안활동에 대한 기초연구가 미흡한 상황이다. 따라서, 본 연구에서는 보안 활동에 가장 기초가 되는 보안교육이 기업의 보안역량에 미치는 영향에 대해 분석하였다. 그 결과, 보안교육은 보안역량에 양(+)의 상관관계를 나타내는 것으로 분석되었다.

대구·경북지역 섬유산업의 정책변화와 혁신과제 (Policy Change and Innovation of Textile Industry in Daegu·Kyungbuk Region)

  • 신진교;김요한
    • 경영과정보연구
    • /
    • 제31권3호
    • /
    • pp.223-248
    • /
    • 2012
  • 본 연구는 대구경북지역 섬유산업의 경쟁력 회복을 위해 1999년부터 소위 '밀라노프로젝트'로 시작된 대구지역 섬유산업진흥사업을 중심으로 지난 10년간의 대구지역 섬유산업의 정책변화와 지역 섬유산업의 구조변화에 대한 현황분석을 토대로 향후 대구경북지역 섬유산업의 혁신과제를 제안하고자 하였다. 분석결과를 요약하면 다음과 같다. 1단계 밀라노프로젝트('99-'03)는 기획 수립단계에서부터 섬유산업의 중장기 발전시나리오에 기초한 비전과 전략의 부재로 체계적인 사업기획 및 단위사업 선정이 미흡함으로써 패션어패럴밸리 조성 등 사업의 추진일정이 지연된 문제점이 노출되었지만, 신제품개발지원센터, 염색디자인실용화센터 등 차별화 제품의 개발을 지원할 수 있는 기반을 구축하게 되었다는 점에서 성과의 의의가 있다. 2단계 대구섬유산업진흥사업('04-'08)은 경상북도의 도비 매칭을 통하여 대구경북지역의 광역사업으로 추진되었으며, 기 구축된 인프라를 중심으로 지원된 기술개발지원 사업은 특허출원 등 기술적 성과와 신상품 매출액 비중 증가 등의 경제적 성과가 가시화되고 있는 것으로 나타났다. 아울러 섬유업계는 1990년대 후반부터 한계업체 퇴출, 설비매각 이전 등 고강도의 구조조정이 진행되어 왔으나, 현재 영업중인 섬유업체는 재무구조, 생산성, 수익성 측면에서는 기업의 경영성과가 호전되었다. 산업 구조적인 측면에서는 의류용섬유소재분야에서 산업용섬유소재분야로 구조전환이 이루어지고 있는 것으로 나타났다. 기업의 혁신역량 분석에서는 타 산업과 비교할 때 큰 차이는 없으나, 최고경영자의 기술혁신의지, 기업가 정신, 연구개발 역량과 인적자원분야에서 혁신역량이 다소 떨어지는 것으로 나타났다. 향후 섬유산업의 지속발전을 위한 경쟁력 제고를 위해서는 하이테크 섬유소재와 생활용 섬유분야에 대한 선택과 집중이 필요하며, 향후 물리적 집적기반보다는 신뢰와 협력에 기반한 네트워크를 통해 '혁신 시너지'를 창출할 수 있도록 소프트웨어적 인프라 구축에 보다 집중하여야 할 것이다. 특히 지역 섬유산업이 지역 전략산업으로 선정되어 10년 이상 지속적인 지원을 받아 온 만큼, 이제 전통 주력산업에서 미래 성장산업으로 변모하기 위해서는 기업의 기술혁신의지와 기업가정신에 기초한 기업주도의 '혁신 클러스터'를 반드시 창출해야 할 것이다.

  • PDF

실험대학 과제도서실 운영에 관한 조사연구 (A Research Survey on the Reserved Book System of Pilot Universities in Korea)

  • 최달현
    • 한국도서관정보학회지
    • /
    • 제5권
    • /
    • pp.119-168
    • /
    • 1978
  • This is a survey of the reserved book system in the pilot universities in Korea. We have surveyed only 22 university libraries among 29 pilot schools as of 1977, because of the differences in the library users, library organization, library facilities, and library materials between universities and colleges. In 1972, the Korean Ministry of Education developed a reformation plan for their higher education based on the teaching method of curriculum-oriented faculty instead of that of the faculty-oriented curriculum. The former puts emphasis on the cultivation of a student's thinking, creativity, and judgement through self-teaching to do a given assignment. The reserved book system in a college or university library is one of the most important methods necessary to accomplish the above educational aim. The survey used a questionnaire with 50 question on 28 items concerning the various aspects of the reserved book system in 22 pilot universities. the survey result discovered many problems needing correction. The following list describes the measures needed to correct the problems found in the pilot universities. 1. The management of a centralized reserved book system is much more effective and economical than the decentralized reserved book system when a university is located on the same campus. 2. In the university library, an independent reserved book department requires to gain the desired educational aims as compared with the reserved book room controlled by any other department in the library. 3. The reserved book system should not be adopted by all the departments at once but enlarged gradually, for it needs the understanding and support of faculty members and the university itself. 4. As competence is essential to the effective operation of the reserved book room, the university library should not place an unqualified person in charge of the reserved book department. 5. The librarian in charge of the reserved book department is required to do more professional works such as analysis of users, collection and analysis of syllabuses, maintenance of faculty member cooperation, establishment of measures to acquire unavailable materials, and drawing up an effective management plan. However, he is spending most of his time in clerical works, that is, non-professional works. 6. Three to five titles of each reserved book are considered reasonable and required materials should be shelved in proportion to the number of students, that is, one copy per eight or ten students if the materials are allowed to lend for two hours at a time. For the supplementary materials, the library needs to place two or three copies per subject. 7. Professors must select reserved books with care so that they can be used year after year. 8. Few universities are asking professors the number of class students and the date when the reserved material will no longer be needed on reserve. 9. The library should gather all the lists of reserved books from every professor at least three to five months before the courses open, because it takes a long time to obtain foreign materials. 10. It is desirable that the reserved book department should collect the lists and prepare the materials with promptness and consistency. 11. Instead of block buying, it is desirable to purchase reserved books at the time the library gets the reserved book list from the professors. The library should also inform faculty members whether it obtained each reserved book or not before the course open. 12. The library should make a copy of materials if a professor requires to reserve an out-of-print book or partial contents of a book, journal, and thesis. 13. An independent budger for reserved books from the budget for general materials is desired. 14. The shelf arrangement of reserved books by courses or professors under the same department is much more preferable than a classified arrangement. 15. While most of the universities adopted the open shelves system for all the reserved books, it is more effective and economical to take a compromise system, that is, closed shelves for requires materials and open shelves for supplementary materials. 18. Circulation of reserved books needs a different system between required materials and supplementary materials: two or three hours and/or overnight loan for the former and two and/or three days loan for the latter. 17. A reserved book room should be open a long time after class so that students can have sufficient time to use the room. 18. The library must take daily and monthly statistic as well as statistics on every aspect of the reserved book system in order that the library ma decide on policy and management of the reserved book room in collaboration with the university. Furthermore, regular reports on the use of the reserved book room should be made to the president and the executive council by the library to acquire their understanding and cooperation for the reserved book system. 19. Cooperation of faculty members is indispensable to the effective management of the reserved book department and it is desirable to make a committee which will fix various decisions about the system. Whenever the director of the library make his decision, he must consult with his staff in order to involve them earnestly in the operation of the system.

  • PDF

정보기술(IT) 기반을 통한 시공관리 선진화 방안 (Approach to improve construction management using Information Technology (IT))

  • 이우방;문진영;문병석
    • 한국건설관리학회:학술대회논문집
    • /
    • 한국건설관리학회 2002년도 학술대회지
    • /
    • pp.115-122
    • /
    • 2002
  • 국내 건설사업은 추진과정에서의 계약관행과 사업관리체계, 그리고 이해관계자의 문화 및 의식구조 등 투명성 측면에서 아직도 개선되어야 할 점이 많다. 건설관련 법령과 제도의 정비도 필요하지만 사업추진의 주체인 사업주와 계약자의 건설정보를 공유할 수 있는 통합시공정보관리체계의 구축을 통해 사업관리 전반의 변화가 필요한 때다. 건설관련 정보를 통합적으로 관리하기 위해서는 설계정보가 구매정보로, 또 구매정보가 시공정보로 원활히 전달되어야 하고, 다양한 건설조직에서 발생하는 정보가 일관성을 가지고 표준적인 방법으로 전달되는 프로세스중심의 업무체계로 전환해야 한다. 국내 원자력건설 기술은 미국, 프랑스, 캐나다. 영국 등 원자력 선진국으로부터 다양한 건설기술을 전수 받아 현재는 기술 자립단계를 넘어 수출단계에 이르렀으나, 전력시장 개방 등 외부 환경변화에 대응하고 내부 경영효율을 높이기 위해 지속적인 노력이 필요 할 때다. 최근 IT기술의 발달과 경영효율 향상에 대한 최고경영자의 의지로 경영혁신 도구로서의 전사적자원관리(ERP: Enterprise Resource Planning)시스템을 도입하는 기업이 늘고 있다. ERP는 업무프로세스의 재설계(BPR: Business Process Reengineering)를 통해 업무처리형태를 조직, 부서중심에서 기업의 자원(인적, 물적) 최적화를 위한 프로세스 중심으로 변경함으로써 건설관리 부문은 물론 경영관리 부문까지 기업 전체의 경영효율을 극대화하기 위한 혁신적인 도구이다. 한수원(주)은 원자력발전소 건설과 같은 대규모 건설사업을 30년간 지속적으로 추진하여 왔으며 건설계획, 구매, 시공 및 시운전관리 등 건설 사업관리 전반에 걸쳐 자체역량을 보유함으로써 대규모 사업관리 및 품질관리 능력은 국내 산업계를 주도하고 있으며, 이런 축적된 사업관리 경험과 기술을 바탕으로 건설관리 기술의 고도화, 선진화에 주도적인 역할을 수행하기 위해 한수원(주)에서는 건설분야까지 ERP 대상에 포함하여 건설업무의 혁신을 추진하고 있다. 본 논문에서는 원자력건설사업의 특성, 사업관리체계, 정보시스템 기반 및 건설관련사간 정보공유체계, 그리고 정보 시스템의 구축 사례를 살펴보고, 향후 개선해야 할 관행과 과제에 대해서도 제언하고자 한다.

  • PDF

The Relationship between MRO E-Commerce System and Purchase Effects

  • Kwon, Soon-Won;Kim, Young-Ei;Youn, Myoung-Kil;Jeon, Ta-Sik
    • 유통과학연구
    • /
    • 제8권3호
    • /
    • pp.5-15
    • /
    • 2010
  • Business corporations have become specialized and on the basis of various interests try to strengthen their competitiveness through a cooperative system of purchase, distribution, service and IT technology. And an advanced Internet-based electronic commerce has witnessed explosive growth and a business-to-business (B2B) electronic commerce. Through E-marketplace. business corporations achieve such diverse utilities as expenditure curtailment, process reduction and prime cost reduction. And with business depression worldwide and soaring prices of materials, many business corporations consider the introduction of comprehensive purchase of MRO (maintenance, repair and operation) materials. The Purpose of this study was to examine the definition of B2B E-marketplace and the utilities of MRO commerce correctly focusing on an empirical analysis of cases of MRO supply and purchase business corporations. The indications acquired from this research results are as follows. Firstly, as for MRO integrated purchase under the characteristics of the market environment, it had to use the supplier obligatorily through the integrated purchase on the level of CEO's decision-making or the group rather than the voluntary will of the purchasing department or the procurement department. Secondly, as for the present B2B E-marketplace MRO purchase, the purchasing agency business has formed the mainstream, but it is aiming at the diversification of the benefit by supplementing/correcting the business model such as category type, mediation business type, MRO-type advancing in the store inclusive of the purchasing agency business, keeping pace with the potential market of MRO. Thirdly, as for analysis of the products, the purchaser wants more various products and assortment of goods than those of the present time, and also to be provided with the precise product information. Especially, as the importance of the product sourcing becomes high, the whole energy has been bestowed on acquirement of the excellent suppliers. Fourth, as for use of B2B E-marketplace MRO integrated purchasing system, there are the purchasing companies complaining the inconvenience even until now, and there is the demerit spending the long time during the image move and the process treatment. It shall try to shorten the searching time and the process treatment time as the system is centered on the purchaser. In order to enhance the efficiency of MRO E-marketplace purchase, followings must be considered: First, because the importance of product sources ever increases, an excellent supplier must be secured earnestly. Second, the time of process must be reduced focusing on purchasers. B2B E-marketplace will increase and diversify electronic commerce continuously. Through MRO E-marketplace, business corporations will reduce expenditure, achieve a transparent and speedy trade, and purchase products of fine quality, thus establishing a most effective market. In addition, in this study the investigator brings focus into MRO which has not been clearly discussed in the academic and business world so far and intensively highlights an indirect material-oriented expenditure curtailment effect. By taking all the aspects of supplier, purchaser and practical economical value into account, the investigator presents a strategic direction for the successful comprehensive purchase of B2B MRO.

  • PDF

DEA와 Malmquist 생산성지수를 이용한 우리나라 온라인쇼핑업체의 다기간 경영 효율성 분석 (Evaluating the Multi-Period Management Efficiency of Domestic Online-Shopping Companies)

  • 마진희;자윤호;안영효
    • 유통과학연구
    • /
    • 제13권4호
    • /
    • pp.45-53
    • /
    • 2015
  • Purpose - Online shopping enables consumers to conveniently purchase products irrespective of the time and place. As a result, several online shopping companies have emerged to cater to this growing market and, therefore, the competition among them has become increasingly intense. This paper evaluates the comparative efficiency of online shopping companies for a multi-year period (2009-2013), in order to help online shopping managers identify major drivers for enhancing management efficiency and the subsequent competitiveness. Research design, data, and methodology - The researchers collected the data from 2009 to 2013 from the distribution yearbook. This paper analyzes the marketability (sales figures), profitability (business profits), and management conditions (net profits) of domestic online shopping enterprises by incorporating information on human resources (number of employees) and material resources (total assets and capital). Therefore, the number of employees, total assets, and capital are selected as input variables, and sales figures, business profits, and net profits as the output variables. In this study, Data Envelopment Analysis (DEA) was used to measure the comparative efficiency of domestic online shopping companies. In addition, the Malmquist Productivity Index was used to evaluate the trend of change of Decision Making Units' (DMUs') efficiency for a multi-year period. Results - First, as of 2013, Interpark (2.415) was found to be the most efficient online shopping enterprise, followed by Aladdin Communications (2.117), Hyundai Home shopping (1.867), Home&Shopping (1.176), NS Home shopping (1.170), Commerce Planet (1.126), CJ O Shopping (1.105), Ebay Korea (1.088), and GS Home Shopping (1.051). Second, this study recognizes how the management efficiency has changed for the period 2009-2013. Third, the lesser the capital and employees, the more are the net profits, and the better is the management efficiency of domestic online shopping companies. Lastly, the productivity of such companies is influenced by endogenous factors rather than exogenous factors such as shifts in business environment and technological advances. Conclusions - DHC Korea influenced various distribution channels to reach customers through the Internet. Consequently, this helped in increasing the awareness about its products, in addition to an increase in sales. These achievements can be attributed to the characteristics of online shopping companies. Although it is easy for these companies to suggest goods for one-off purchases, they however have difficulties in retaining customers. Overcoming this challenge can be one of the ways to benchmark a successful case of an efficient company. For example, an online shopping company can attract customers by developing a corresponding mobile application as a convenient way to shop online. Additionally, they can satisfy customers by quick delivery of purchased products, which is possible by building an effective logistics network. Our study indicates that the productivity of an online shopping company was influenced by endogenous factors driven by improvements in managerial practices rather than exogenous factors. Accordingly, online shopping companies should adopt strategies to improve their operational efficiency rather than sales volume-oriented management.

The Future of NVH Research - A Challenge by New Powertrains

  • Genuit, Ing. K.
    • 한국소음진동공학회:학술대회논문집
    • /
    • 한국소음진동공학회 2010년도 춘계학술대회 논문집
    • /
    • pp.48-48
    • /
    • 2010
  • Sound quality and NVH-issues(Noise, Vibration and Harshness) of vehicles has become very important for car manufacturers. It is interpreted as among the most relevant factors regarding perceived product quality, and is important in gaining market advantage. The general sound quality of vehicles was gradually improved over the years. However, today the development cycles in the automotive industry are constantly reduced to meet the customers' demands and to react quickly to market needs. In addition, new drive and fuel concepts, tightened ecological specifications, increase of vehicle classes and increasing diversification(increasing market for niche vehicles), etc. challenge the acoustic engineers trying to develop a pleasant, adequate, harmonious passenger cabin sound. Another aspect concerns the general pressure for reducing emission and fuel consumption, which lead to vehicle weight reductions through material changes also resulting in new noise and vibration conflicts. Furthermore, in the context of alternative powertrains and engine concepts, the new objective is to detect and implement the vehicle sound, tailored to suit the auditory expectations and needs of the target group. New questions must be answered: What are appropriate sounds for hybrid or electric vehicles? How are new vehicle sounds perceived and judged? How can customer-oriented, client-specific target sounds be determined? Which sounds are needed to fulfil the driving task, and so on? Thus, advanced methods and tools are necessary which cope with the increasing complexity of NVH-problems and conflicts and at the same time which cope with the growing expectations regarding the acoustical comfort. Moreover, it is exceedingly important to have already detailed and reliable information about NVH-issues in early design phases to guarantee high quality standards. This requires the use of sophisticated simulation techniques, which allow for the virtual construction and testing of subsystems and/or the whole car in early development stages. The virtual, testing is very important especially with respect to alternative drive concepts(hybrid cars, electric cars, hydrogen fuel cell cars), where complete new NVH-problems and challenges occur which have to be adequately managed right from the beginning. In this context, it is important to mention that the challenge is that all noise contributions from different sources lead to a harmonious, well-balanced overall sound. The optimization of single sources alone does not automatically result in an ideal overall vehicle sound. The paper highlights modern and innovative NVH measurement technologies as well as presents solutions of recent NVH tasks and challenges. Furthermore, future prospects and developments in the field of automotive acoustics are considered and discussed.

  • PDF

학과보건교육에서의 매체활용실태 및 영향요인 분석 (An Analysis of the Use of Media Materials in School Health Education and Related Factors in Korea)

  • 김영임;정혜선;안지영;박정영;박은옥
    • 한국학교보건학회지
    • /
    • 제12권2호
    • /
    • pp.207-215
    • /
    • 1999
  • The objectives of this study are to explain the use of media materials in school health education with other related factors in elementary, middle, and high schools in Korea. The data were collected by questionnaires from June to September in 1998. The number of subjects were 294 school nurses. The PC-SAS program was used for statistical analysis such as percent distribution, chi-squared test, spearman correlation test, and logistic regression. The use of media materials in health education has become extremely common. Unfortunately, much of the early materials were of poor production quality, reflected low levels of interest, and generally did little to enhance health education programming. A recent trend in media materials is a move away from the fact filled production to a more affective, process-oriented approach. There is an obvious need for health educators to use high-quality, polished productions in order to counteract the same levels of quality used by commercial agencies that often promote "unhealthy" lifestyles. Health educators need to be aware of the advantages and disadvantages of the various forms of media. Selecting media materials should be based on more than cost, availability, and personal preference. Selection should be based on the goal of achieving behavioral objectives formulated before the review process begins. The decision to use no media materials rather than something of dubious quality usually be the right decision. Poor-quality, outdated, or boring materials will usually have a detrimental effect on the presentation. Media materials should be viewed as vehicles to enhance learning, not products that will stand in isolation. Process of materials is an essential part of the educational process. The major results were as follows : 1. The elementary schools used the materials more frequently. But the production rate of media materials was not enough. The budget was too small for a wide use of media materials in school health education. These findings suggest that all schools have to increase the budget of health education programs. 2. Computers offer an incredibly diverse set of possibilities for use in health education, ranging from complicated statistical analysis to elementary-school-level health education games. But the use rate of this material was not high. The development of related software is essential. Health educators would be well advised to develop a basic operating knowledge of media equipment. 3. In this study, the most effective materials were films in elementary school and videotapes in middle and high school. Film tends to be a more emotive medium than videotape. The difficulties of media selection involved the small amount of extant educational materials. Media selection is a multifaceted process and should be based on a combination of sound principles. 4. The review of material use following student levels showed that the more the contents were various, the more the use rate was high. 5. Health education videotapes and overhead projectors proved the most plentiful and widest media tools. The information depicted was more likely to be current. As a means to display both text and graphic information, this instructional medium has proven to be both effective and enduring. 6. An analysis of how effective the quality of school nurse and school use of media materials shows a result that is not complete (p=0.1113). But, the budget of health education is a significant variable. The increase of the budget therefore is essential to effective use of media materials. From these results it is recommended that various media materials be developed and be wide used.

  • PDF

중소기업의 ESG 평가지표 활용 방안: ESG 평가지표와 기업가치의 관계를 중심으로 (A Method of Utilizing ESG Evaluation by Small and Medium Enterprises: Focusing on the relationship between ESG Performance measure and Corporate Value)

  • 박재현;한향원
    • 벤처창업연구
    • /
    • 제18권6호
    • /
    • pp.87-104
    • /
    • 2023
  • 최근 COVID-19 장기화 영향과 원자재 가격 급등으로 국내 대출금리가 가파르게 오르면서 빚으로 버티는 중소기업에 대한 우려가 커지고 있다. 또한, 높은 대출금리와 금융권의 대출심사 시 과도한 제출서류와 재무제표 위주의 심사로 인해 경영 환경에 힘든 중소기업의 대출은 거절되는 경우도 증가하고 있다. 따라서 중소기업의 자금조달과 투자 활성화 방안에 대한 논의가 필요하기에 본 연구는 중소기업의 ESG 제도의 활용을 통한 투자증진방안을 확인하였다. 본 연구의 목적은 비재무적 지표로 활용되는 ESG 평가지표의 활용이 중소기업의 기업가치를 예측하는 데 도움이 되며, 중소기업이 ESG 정보공시에 적극적으로 참여해야 하는 중요성을 제시하는 것이다. 본 연구는 자금조달이 중요한 중소기업의 ESG 도입과 실천의 필요성을 제언하며, 비재무적 지표의 활용이 기업가치를 예측하는 데 도움이 된다는 것을 실증적인 결과로 제시하였다. 연구결과, 중소기업의 ESG 성과와 기업가치는 정(+)의 관계를 가졌다. 중소기업의 ESG 부문별 등급과 기업가치는 모두 정(+)의 영향 관계를 맺는 것으로 볼 수 있다. ESG 종합등급은 기업가치에 긍정적 영향을 미치는 것으로 확인되었고 뿐만 아니라 ESG 환경, 사회, 지배구조 등급이 높은 중소기업일수록 기업가치를 높게 평가받는다는 것을 확인할 수 있었다. 연구결과에 따르면, 중소기업에게도 ESG 평가지표의 활용이 필요함을 제시하고, 중소기업의 성장을 도모하기 위해서는 중소기업의 기업가치를 재조명하는 방안을 연구하는 것이 필요함을 제언한다. 따라서, 본 연구는 중소기업의 ESG 경영과 기업가치의 관계에 대한 이해를 통해 중소기업의 ESG 경영 전략 수립 방안이 필요하다는 점과 ESG 정보공시를 위한 노력이 곧 중소기업의 정보 비대칭성을 해결하는 데 도움이 될 수 있음을 시사한다.

  • PDF

심해 자율무인잠수정 우라시마의 잠항시험에서 취득된 북 구마노 분지 해저 선상지 시스템의 음향 영상 (Acoustic images of the submarine fan system of the northern Kumano Basin obtained during the experimental dives of the Deep Sea AUV URASHIMA)

  • Kasaya, Takafumi;Kanamatsu, Toshiya;Sawa, Takao;Kinosita, Masataka;Tukioka, Satoshi;Yamamoto, Fujio
    • 지구물리와물리탐사
    • /
    • 제14권1호
    • /
    • pp.80-87
    • /
    • 2011
  • 자율무인잠수정은 해수면탐사선에 비해 해저면에 더 가까이 접근할 수 있는 장점을 제공한다. 수심자료, 해저면 물질 정보와 해저면 하부 영상을 얻기 위해서는 자율무인잠수정에 탑재된 다중빔음향즉심기, 해저면영상탐사기 및 천부지층탐사기 등이 유용하게 사용된다. 일본해양연구개발기구는 3000m급 자율무인잠수정 우라시마를 개발하였다. 잠수정의 전력공급용 연료전지시스템의 공학적 개발과 시험과정을 거쳐 우라시마에는 신형 리튬이온전지 시스템이 설치되었다. 잠수정은 초기 공학적인 업무에서 과학적 사용 목적으로 개량되었다. 다양한 과학장비들이 추가되었고 2006년부터 과학적인 목적의 임무수행을 위한 잠항시험이 수행되었다. 2007년 시험운항에서 일본 기이반도 해역 북구마노분지 부근에서 우라시마의 해저면영상탐사기와 천부지층탐사기를 이용하여 고해상 음향영상자료를 획득하였다. 후방산란강도 도면에서는 많은 암설류가 확인되었고, 천부지층탐사단면에서 연구해역의 북동쪽 끝 부근의 하부구조가 확인되었다. 이러한 특징은 최신 선상지의 형성과 관련된 구조를 암시한다. 그러나 남서 해역에서는 해저면 하부 ~20 ms 부근에서 강한 반사층이 존재하는데, 이는 삭박특징으로 해석되며 현재는 더 젊은 해저 퇴적물로 덮여있다. 잠수정의 성능은 지속적으로 향상되고, 우라시마를 활용하여 많은 유용한 결과가 얻어질 것으로 기대된다.