• 펄프종이기술
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• 제34권5호
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• pp.70-76
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• 2002

Ten years ago most papermakers were convinced that a system needs to be voluminous and heavy for controllability and stability. In order to improve grade changing dynamics, the author of this paper began developing a compact papermachine wet end. The results have proven that compactness is beneficial even more broadly. Quoting Voith$^1$the trend is now the opposite - the systematic collecting and direct feeding of the individual water flows back into the system". In its gasless form this is actually covered by a POM Technology Patent.tent.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2003년도 International Meeting on Information Display
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• pp.1164-1167
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• 2003

Recently CRT is getting flatted, As change of CRT trend from normal type to Flat type, the material of Shadow Mask was also changed from AK(Aluminum Killed) to Invar(Fe-Ni alloy) materials Until now we have used just AK(Aluminum Killed) for normal type TV(not flat type), but main raw material of shadow mask component was changed. . However recently Invar(Fe-Ni alloy) materials, which has advantage of Low Thermal Expansion and High Strength, has been developed as well as applying in mass production as CRT's trend has become more flat and fine pitch. As main raw material of shadow mask component was changed, conditions of process were changed. One of them, the importance of pre-etching process (assistant process for developing & etching) is improved because there are so many particles in the pre-etching bath because of Ni compounds. Since the solubility of Ni in pre-etching solvent is very low related to Fe's, so the compounds of Ni happen to make particles.(the solubility of Fe is twenty times Ni's) that particles happen to make process troubles and NG productions so to clear the particles we had to established high cost filtering system, but it is useless. As time goes by the quantity of particles (Ni compounds) was increased because of the capability of filtering system was not enough, the particles was produced continuous in bath, and it make quality problems. Hence we tried to develop the new pre-etching solution to remove the particles (Ni compounds) and to cost down the filtering system's running cost. But in improving the solution we discovered the new pre-etching solution made the PR developing better. In former solution there were three kinds of chemistry (COOH)2 , H2O2 , H2S04 .first the function of (COOH)2 is drilling the surface of Invar, during this mechanism Ni compounds occurred. Second the function of H202 is removing the PR fringe (half UV exposure zone on PR(PVA)), Third the function of H2S04 is the catalysis of (COOH)2 In those, (COOH)2 was the main reason to make the Ni compounds. So to improve the solutions we had to change (COOH)2 to the other material. the chemistry we improved was a complex chemistry based on H2S04 . after using this chemistry the particles problem was disappeared and there was another advantage cut down the PR fringe. The New solution made the function of H202 better so the PR developing improved. To be direct the catalyst of the new solution helped the H202. anyway First thing after change the solution the quality of shadow Mask for flat color TV was improved & the yield also improved. But the more important thing is how to control the new solution. So we accepted the new concept which was the degree of freshness. The degree of freshness is based on non-reacted solution which was 100% ( the degree of freshness) and calculated the melted Ni quantity as time goes by. So we made the gauging liner plot. In conclusion, many companies tried to make fine pitched Shadow Mask ,generally to make quality jump up it needed a lot of cost & persons .in this case the shift of core material made it possible.

• 디자인학연구
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• 16호
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• pp.53-63
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• 1996

고도의 경제성장과 더불어 우리들의 생활이 윤택해지면서 과거 부(富)의 상징으로 느껴졌었던 자동차가 지금은 우리들에게 없어서는 안될 생활필수품으로 자리잡게 되었다. 이러한 시대적 변화는 MY-CAR시대를 맞이하게 되었고, 그 수요는 폭발적으로 증가하고 있는 실정이다. 그렇지만 이러한 추세에 비하여 우리의 자동차 개발 기술 수준은 선진국들 처럼 질(質)과 양의 측면에서 균형을 이루지 못하고 있어 아직도 개인의 기호를 만족시키기에는 역부족임을 실감케 하고 있다. 본 연구에서는 자동차 개발기술과 품질의 균형 있는 발전을 꾀하기 위하여 현재까지 관심사가 적었던 자체 색 분야를 죽 연구대상으로 하여 주거의 연장으로서 필요한 상황과 최근 한국 승용차의 색상경향, 시대적 환경 요인들을 조사, 분석하고 색상개발 시 제한될 수 있는 여러 가지 문제점을 파악하여 현대인의 기호에 맞는 승용차 색상개발 시에 참고 자료로 제시하여 보다 체계적이고 효과적인 차체 색을 개발하는데 도움이 될 것으로 충분히 예상된다.

• 한국군사과학기술학회지
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• 제22권3호
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• pp.299-310
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• 2019

Increase of combat capability through the lightweighting of vehicles has been internationally issued. One of the methods for lightening is applying high hardness armor(HHA) steel which is outstanding ballistic performance and protection performance compared to weight. Development of HHA steel is currently completed in America, United Kingdom, Australia and Germany. It is used for not only combat vehicle, but also various combat device. Korea is developing new material of HHA steel according to this trend. When such HHA steel is applied to structure, welding process is used for connection of the structure. Cracks from hydrogen embrittlement and cold cracking are easily generated in welds of HHA steel and it greatly affects the strength of all structure. Decrease of strength from welding defect is critical to combat capability. Therefore, welding process optimization is important for performing the role of structure. In this study, international welding technology is reviewed through scientific research paper and patent.

• Parasites, Hosts and Diseases
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• 제60권4호
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• pp.261-271
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• 2022

This study provides an overview of the current status of clonorchiasis and cholangiocarcinoma (CCA), and their relationship in Korea during 2012-2020. Data were obtained from the Health Insurance Review & Assessment Service of Korea. Cluster, trend, and correlation analyses were performed. Gyeongsangnam-do and Seoul had the highest average number of cases (1,026 and 4,208) and adjusted rate (306 and 424) for clonorchiasis and CCA, respectively. The most likely clusters (MLC) for clonorchiasis and CCA were Busan/Gyeongsangnam-do/Ulsan/Daegu/Gyeongsangbuk-do (Relative Risk; RR=4.55, Likelihood Ratio; LLR=9,131.115) joint cluster and Seoul (RR=2.29, LLR=7,602.472), respectively. The MLC for clonorchiasis was in the southeastern part of Korea, while that for CCA was in the southern part. Clonorchiasis showed a decreasing trend in the southeastern districts, while increased in the southwestern districts. Cities in the central region had a decreasing trend, while the western districts had an increasing trend. In most adults (30-59), infection rate of clonorchiasis showed a significant decrease until 2018, while thereafter increased, although not significant. CCA showed a sharply decreasing tendency. The incidence of clonorchiasis and CCA were positively correlated. In general, the correlation was weak (r=0.39, P<0.001), but it was strongly positive around the 4 river basins (r=0.74, P<0.001). This study might provide an analytic basis for developing an effective system against clonorchiasis and CCA.

• 해양환경안전학회지
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• 제27권7호
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• pp.918-923
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• 2021

정부는 공유수면 매립사업의 계획적인 관리를 위해, 10년 주기의 공유수면 매립기본계획을 수립하고 있다. 그러나 수시변경을 통한 매립사업을 추진하는 경우가 상당한 비중을 차지하고 있는 것으로 나타났다. 이에 기본계획의 실효성에 대한 의문이 제기되고 있으며, 이를 보완하기 위한 장기 매립 수요 추세 분석에 대한 필요성이 증가하고 있다. 이에 본 연구에서는 그간의 연간 매립 실적 자료를 활용하여 매립 수요 추세 분석을 수행하였다. 분석 결과, 국내 공유수면 매립 수요는 지속적으로 하락하는 추세인 것으로 나타났으며, 특히 매립기본계획 체제로 전환된 1990년대 이후에는 그 추세가 뚜렷하게 나타나고 있는 것으로 나타났다. 또한 2021-2030년까지 총 매립 수요는 최대 13.8 km²에서 최소 1.7 km² 수준으로 산정되었다.

• Asian Pacific Journal of Cancer Prevention
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• 제15권20호
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• pp.8641-8645
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• 2014

The rising trend of breast cancer both in developed and developing countries is a real threat challenging all efforts to screening, prevention and treatment aspects to reduce its impact. In spite of modern preventive strategies, the upward trend of breast cancer has become a matter of great concern in both developed and developing countries. Chittaranjan National Cancer Institute is a premier regional cancer institute in eastern region of India catering to a large number of cancer patients every year. A pilot case control study of fifty breast cancer patients and 100 matched controls was conducted during 2013 to evaluate the effects of habitual factors like working in night shift, not having adequate sleep, and not sleeping in total darkness on breast cancer of women. The study revealed that not sleeping in total darkness was associated with higher odds of outcome of breast cancer of women. This positive correlation can play a vital role in formulation of preventive strategies through life style modification.

• 한국의류학회지
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• 제31권8호
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• pp.1262-1272
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• 2007

The purpose of this study was to examine the development trend of smart fiber by textile companies in Daegu/North Gyeongsang Province. This examination includes the development fields of smart fiber, investment size, information sources and the use degree of those, research-related infrastructure, relationship between companies' characteristics and their interests in smart fiber. Research data were collected by a survey. The definition and classification(4 areas and 12 development products) of smart fiber followed ones of Smart Fiber Technology Roadmap by the Ministry of Commerce, Industry and Energy. Data were analyzed using SPSS 11.0 program for frequency, means, t-test, and $X^2$-test. Among respondents, the numbers of dying and finish companies and export traders were the highest. It revealed that 19.6% of companies were developing smart fibers. Within 12 development products, vapor permeable/waterproof fiber showed to be most being developed, while medical fiber for human has not been developed and wasn't made an investment plan for developing. It was discovered that the biggest problem of smart fiber development was the lack of experts and the best outcome of smart fiber development was preoccupation of future market. It showed that companies got information from textile fairs but didn't often use information sources. The companies appeared to have a weak intention about research of smart fiber. The more important a company considered functionality of textile products and the more innovative and stabler the company was, the higher interest in smart fiber companies had. It was concluded that textile companies in Daegu/North Gyeongsang Province were aware of the importance of smart fiber development but they were not strongly interested in it and not enthusiastic in taking action on it.

• 기술혁신학회지
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• 제21권1호
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• pp.236-264
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• 2018

본 논문에서는 ICT(Information and Communications Technology) 산업 관련 기술을 주제로 경상북도의 특허출원 동향과 특허맵 중 하나인 특허 포트폴리오 분석을 적용하여 ICT 기술의 향후 방향을 살펴본 연구이다. 이에 본 연구는 경북지역 ICT 산업의 기술 동향 및 기술개발 실태를 특허정보를 통해 살펴보고, 특허 포트폴리오 분석을 통한 지역 ICT 산업의 기술방향 정도를 가늠하여, 연구개발전략 수립에 활용되는 것을 그 목적으로 한다. 경상북도에서 출원된 특허를 대상으로 국제특허분류(IPC: International Patent Classification) 별 기술동향 파악을 하였고 향후 미래유망기술 도출에 대해 분석하였다. 동향파악을 위해서는 ICT 분류코드에 의거하여 각 부문별로 출원된 특허에 대해 분석하였다. 그 결과 경상북도의 특허 출원 동향과 기술별 점유율 및 구간별 특허활동 현황, ICT 중분류 기술별 특허 출원 동향, ICT 기술시장 성장단계현황, 연구주체별 특허 출원 동향, 연구주체 간 공동연구 현황, 주요 출원인 특허 출원 동향 분석 등의 분석결과를 제시하였다. 또한 유망기술 도출을 통해 경북 ICT산업의 기술적 방향을 살펴보았다. 연구결과를 바탕으로 경북 ICT 산업의 기술 경쟁력 확보에 기여하고자 하였고, 더불어 향후 ICT 산업기술의 지향 방향과 기술정책 전략 수립에 도움이 되고자 하였다.

• 한국정보통신학회논문지
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• 제10권12호
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• pp.2126-2131
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• 2006

국제해사기구((IMO)는 새로운 기술의 사용과 다양한 전자항해통신기술 및 서비스를 안전하게 활용하기 위한 폭넓은 전략적 비전을 개발하고 있다. 또한 정확성, 보안, 비용 효율성 등을 위하여 모든 선박을 대상으로 하는 국제적 커버리지 제공이 가능한 시스템을 개발하려고 한다. 그러나 이 새로운 전략적 비전의 수행을 위해서는 기존의 해도, 선교 디스플레이, 전자 항해기기, 통신시스템과 연안 인프라 등의 운영 방식과 항해수단에 대한 수정 및 보완이 절실하다. 따라서 본 논문에서는 E-Navigation의 국제적 동향을 살펴보고, E-Navigation 개발을 위한 환경 분석을 기초로 하여 향후 E-Navigation을 구현하기 위한 방향을 제시한다.