정보통신시장 개방에 따른 소비자 보호대책에 관한 연구

신현식,정근회 麗水水産大學校産業技術硏究所 1997 産業基術硏究所 論文集 Vol.6 No.-

In this study, we define the appropriate classification of information and telecommunication industry, including telecommunications equipment and service industry in order to provide the concerned governmental institutions with data useful for establishing industry promoting policy. And on the basis of this classification, we analyse traits and structure of the recent market, and also perform trends-analysis and market-forecast using data which have been fielded in our DB system since 1984. First, we classify telecommunications industries into telecommunications equipment industry, information equipment industry, S/W industry, telecommunications component manufacturing industry, and telecommunications service industry. And then, we classify telecommunications equipment industry and telecommunications service industry into more details; respectively, wire communication equipment / wireless communication equipment, computer equipment / peripheral equipment, system software / application software, active component / passive component / service / other telecommunications service industry. The characteristics of the recent industry are as follows; 1. in the economic-industrial aspect, role enlargement of information and telecommunications industry. 2. in the aspect of technology environment, rapid development of technology and technology commercialization. 3. in the market structure aspect, expansion of Regionalism.

不動點 없는 變形에 關한 性質

李植 麗水水産大學校産業技術硏究所 1997 産業基術硏究所 論文集 Vol.6 No.-

Nilpotent 空間의 擴張으로서 locally nilpotent 空間 上에서 Euler characteristic를 使用하여 不動點없는 變形의 許容에 關하여 調査하였다. 특히, 本 論文에서는 다음 定理를 證明하였다. X∈C(LN)로서 X가 有限形態이면서 基本群 π₁(X)(≠{e})가 有限이면 X는 不動點없는 變形을 許容한다.

유통산업의 구조조정에 관한 연구

강영문 여수대학교 산업기술지역개발연구소 2000 産業基術硏究所 論文集 Vol.9 No.-

The korean retaiI sector is unable to keep up with the advances made in the country's manufacturing industry. Toimprove this, some radical changes have been undertaken recently in a cooperated effort made by both firm and thegovemment to modernize the retail sector. Buoyed by recovering consumer confidence nowadays, the expectations for and potential of the Korean retaiI sector in the 21C has been significantly heightened. Expectations call for boosted of produltivity, output. Such results will be strengthened by the globalization process, which is shaping the korean retail sector into a more efficient industry.

디이젤기관의 흡입선회유동에 관한 연구

정동화,최은순,박상규 麗水水産大學校産業技術硏究所 1992 産業基術硏究所 論文集 Vol.1 No.-

Enhancement of performance of engine depends upon how perfectly combustion is effected, and air swirl is a factor contributing to this aim. In this paper, the variation of induction air swirl according to intake port shapes is studied by steady flow test. As a result of the steady flow test, using various shapes of intake port the following points are clarified. 1. Air swirl in actual engine cylinder can be fully estimated by steady flow test. 2. A valve position can have a substantial effect upon swirl. 3. The change of port inlet area has an effect on the variation of air swirl.

갯지렁이, Perinereis aibuhitensis의 재생력을 이용한 양식 산업화

강경호 麗水大學校 産業基術硏究所 1999 産業基術硏究所 論文集 Vol.8 No.-

한국산 갯지렁이류 중에서 산업적으로 가장 중요한 청충의 양식기법 개발에 관한 기초자료를 얻기 위하여 수온별 체중별로 청충의 충체를 prostomium에서 1/4, 2/4 및 3/4부분으로 절단하여 재생상태를 조사한 결과, 절단된 부위에서 pygidium재생이 확인되었다. 수온별 청충의 재생은 13 ±1℃ 구에서 대형개체(2.5 ±0.4g)의 2/4절단구에서 2체절이 재생되었고 소형개체 (1.0 ±0.2g)에서는 3/4절단구에서는 3체절만이 재생됨으로써 저수온구에서는 재생효과가 없었으며 생존율 또한 저조하였다. 한편 20 ±1℃의 고수온 실험구의 경우는 전실험구에서 2~6개의 체절이 증가함으로써 청충의 재생에는 수온이 크게 작용하는 것으로 나타났다. This study was conducted to develop the raising techniques of Perinereis aibuhitensis and focused on regeneration and survival rate. According to the results of experiment on regeneration of P. aibuhitensis, survival rates were very low. However, only at high water temperature, 20℃ or above, they produced the new segments, although the survival rate was low.

해양자료의 GIS화를 위한 해도의 3차원 공간표현(Visualization) 구현에 관한 연구

강영만 麗水水産大學校産業技術硏究所 1998 産業基術硏究所 論文集 Vol.7 No.-

The goal of information using computer by-produce the add-on information in relation being cooperated with the current status. As far as graphics informations were concerned, information transferability to persons will be powered. Additionally GIS(Geometrical Information System_ is very adaptive for the reality point of view. Especially 3D(Dimension) views to GIS objects being deployed, it will be fantastic,. Currently, 2.5D(static 3D) views were completed and commercialized. 3D related theories and suggests a 3D GIS system and implement it in test-bed. Java virtual machine highlight the implementation for easiness in use without specialize GIS concepts.

고 운동량 연산자 확장과 고 에너지 파동함수를 이용한 비탄성 뒤틀린 전자 산란의 계산

鄭潤根 麗水水産大學校産業技術硏究所 1997 産業基術硏究所 論文集 Vol.6 No.-

The distorted electron scalar potential is expressed as a miltipole expansion in the transfer momentum which is found to be convergent for q>400 MeV/c. A comparision of distorted electron scalar multipoles calculated using approximate high energy wave functions with those calculated using exact wave functions shows good agreement only for radial distances within the niclear radius. The discreptancy between using approximate and exact wave functions in the calculation of a DWBA differential cross section due to a surface nuclear transition density is also discussed.

魚族生物 資源量 推定의 精度 改善에 關한 硏究(1)- 2段階 積分方式의 檢證-

申炯浩 麗水水産大學校 産業技術硏究所 1996 産業基術硏究所 論文集 Vol.5 No.-

해를 거듭할수록 심각성이 더해가는 어업자원의 고갈과 이에 따른 어업자원 관리대책의 수립은 잠재 어족생물 자원량 분포의 정확한 평가가 선행되어져야 함은 주지의 사실이다. 이러한 관점에서 어족자원 정도개선을 위한 연구의 일환으로, 개량어탐시스템의 계측알고리즘을 바탕으로 최근 활용단계에 이르고 있는 2단계 적분방식과 기존 적분방식을 비교 검토한 결과 2단계 적분방식의 장점을 요약하면 다음과 같다. (1) 파라메타 설정이 용이하여 THRESHOLD처리에 따른 오차를 줄일 수 있다. (2) 자원량 추정에 필요한 어족생물만의 선별처리가 가능하므로 오차를 줄일 수 있다. (3) 평균SN비가 양호하다 (4) 선별에 의한 어족 생물의 상세한 정보를 얻을 수 있다. (5) 1단계 적분결과에 대한 후처리가 가능하다. 이상의 결과에서 2단계 적분방식이 어족자원의 정도 개선면에서 뿐만아니라 상세한 정보처리의 능력면에서 기존의 적분방식보다 양호함을 나타내고 있음을 알 수 있는데, 아직 미진한 부분도 없지않다. 즉, 2단계 적분방식에서는 일단계 적분이 되어진 Main windows상에서 선별에 의한 2단계 적분을 행함으로서 기존의 적분방식보다 복잡한 양상을 보임에 따라 고도의 전자기술 응용과 자동처리에 적합한 소프트웨어의 개발에 대한 지속적인 연구가 요망 되어진다. Echo integration if indispensable in an acoustic survey for assessing fish abundance. The reason is that it is required for computing integrator measurement of fish density in terms of numbers. Two-step integration method is offered as a new way for the accurate estimation of fish abundance. The conventional echo integration method is examined theoretically and practically to reveal the problems inherent in the method. It is shown that the errors caused by noise and unamied scatterers are apt to be large and selection of aimed fish echoes is difficult. These shortcomings are resolved by appling the two-step echo integration method, which first integrates echoes in small cells and then integration weighted results of the first integration in a large cell. Two-step integration method represents a great improvement compared with former method used in fisheries research. The results obtained can be summarized as follows: 1. It is reduce errors by processing the threshold because two-step integration method has processed to alternative parameter setting. 2. Two-step integration method integrates based on the selected fish echoes so that the noise and unamied scatters can be removed from fish abundance. 3. Two-step integration method could be improved the lower signal to noise ration that appears in the echo integration. 4. By selection of only the need part. One can be observe detailed information on fishes. 5. It sould be capable of dealing with the postprocessing on the results of first intergation.

UASB 반응조내 생물학적 거동분석을 위한 모델링

백병천,전관수 麗水水産大學校産業技術硏究所 1992 産業基術硏究所 論文集 Vol.1 No.-

Modeling made it possible to predict the behavior of constituents and microorganisms, and microorganisms, and the changes of process variables with respect to the bed height by assuming the sludge bed zone in UASB(upflow anaerobic sludge blanket) reactor to be a series of CFSTRs(continuous flow stirred tank reactors) of which the volume is proportioned to the gas quantity passing the segmented zone. Mathematical simulations were attemped to identify the balance and distribution of the two microbial populations, which were divided into two groups of acidogenic and methanogenic bacteria, as well as the responces of reactor to the operational conditions in terms of the bed height. Considering the constituents as complex substrates composed of hydrolyzed and nonhydrolyzed materials and VFAs(volatile fatty acids), prediction of the concentration of each constituent was allowed. This reserch indicated that the UASB reactor was relatively stable to shock loading and that the lower part placed below the height of 20%-30% of the sludge bed probably served as a shock absorbing zone. About 70% of organic COD was removed in the lower 55% portion of the sludge bed height.

직렬과 병렬방식 이중효용 흡수식 냉동사이클의 성능 시뮬레이션

이윤환,오종택,오후규,박기원 麗水水産大學校産業技術硏究所 1998 産業基術硏究所 論文集 Vol.7 No.-

Condensing the global environmental problems such as CFCs, energy losses in heat recovery systems as well as summer peak time power demands, the development of high efficiency absorption refrigeration systems is one of the most promising method in this problems. In this study, simulation models of both series and parallel type, both using double-effect absorption cycle refrigeration systems. The results summarized as follows : ⑴ In the parallel type, the solution maximum temperature and the pressure of high temperature generator were adjusted by varing the distribution ratio of the solution, and the optimum value was found to be about 0.4. ⑵ The efficiency of the cooling cycle in both parallel and series systems were increased by decreasing the solution circulation ratio in the absorbers, while the solution maximum temperature and high temperature generator pressure were slightly increased.