• 한국지하수토양환경학회지:지하수토양환경
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• 제17권3호
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• pp.59-75
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• 2012

It is getting difficult to manage water resources in South Korea because more than half of annual precipitation is concentrated in the summer season and its intensity is getting severe due to global warming and climate change. Artificial recharge schemes can be a useful method to manage water resources in Korea adapting to climate change. Patent analysis enables us to prevent overlapping investment and to find out unoccupied technology. In this study, international patent trends and barriers of artificial recharge technology are analysed for patents of Korea, Japan, the United States and Europe. The four artificial recharge methods such as well recharge, surface infiltration, bank filtration and underground structures are classified as main class and the nine sub-technologies such as water intake, water treatment, injection wells, monitoring of groundwater flow, groundwater pumping, surface infiltration/soil aquifer treatment, radial collection well, iron/manganese treatment, and underground subsurface dam are classified as intermediate class. Water intake techniques are subdivided into five classifications. Total 1,281 of patents, searched by WIPS DB tool and selected after removing noisy patents, are analyzed quantitatively to evaluate application trends by year, applicant, country for each classified technologies and analyzed qualitatively to find out occupied and unoccupied technologies. It is expected that upcoming research and development project could be performed efficiently in that an avoidance plan for the similar patents and differentiation plan for the advancing patents are set up based on the quantitative and qualitative analysis results from this research.

• 한국산학기술학회논문지
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• 제16권11호
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• pp.7957-7963
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• 2015

전동차 보조전원장치는 차량에 취부되는 냉난방장치, 형광등, 제어장치 등에 전원을 공급하는 중요한 장치이다. 산업용과는 달리 전동차용 보조전원장치는 내진동, 내노이즈성이 우수해야 한다. 또한, 유지보수가 편리하고 경량화된 장치이어야 한다. 여기서는 전동차용 보조전원장치의 국내외 기술개발 내용과 관련 특허분석을 살펴보고, 이를 통해 국내 기술개발 방향을 제시하고자 하였다. 이를 위해 2014년 2월까지의 한국, 일본, 유럽 및 미국 출원(등록) 공개된 특허를 대상으로 WIPS DB를 이용하여 공개 및 등록된 특허를 대상으로 분석을 수행하였다. 먼저, 전력변환기와 변압기로 대분류한 후, 전력변환기는 공진형 DC/DC 컨버터, 공진형 Half bridge 인버터로 구분하였다. 변압기는 고주파 변압기, 페라이트 변압기, 매칭 변압기로 다시 중분류를 수행하였다. 새로운 전동차의 보조전원장치 기술을 성공적으로 개발하기 위해서는 기존 보조전원장치에 대해 철저한 분석이 이루어져야 한다. 이를 위해, 특허를 활용하여 전동차용 보조전원장치에 대한 기술 동향을 분석하여 기술 발전이 어떻게 이루어져왔는가를 살펴보았다. 본 연구를 통해, 향후 보조전원장치 기술 발전 추세가 어떤 식으로 전개가 진행될 것인가를 예측하였다.

• 대한한의학회지
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• 제33권4호
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• pp.60-68
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• 2012

Objectives: By grasping trends in research, technology, and general characteristics of learning support tools, this study was conducted to present a model for research on Korean Medicine (KM) to make use of information technology to support teaching and learning. The purpose is to improve the future clinical competence of medical personnel, which is directly linked to national health. Methods: With papers and patents published up to 2011 as the objects, 438 papers were extracted from "Web of Science" and 313 patents were extracted from the WIPS database (DB). Descriptive analysis and network analysis were conducted on the annual developments, academic journals, and research fields of the papers, patents searched were subjected to quantitative analysis per application year, nation, and technology, and an activity index (AI) was calculated. Results: First, research on medical learning support tools has continued to increase and is active in the fields of computer engineering, education research, and surgery. Second, the largest number of patent applications on medical learning support tools were made in the United States, South Korea, and Japan in this order, and the securement of remediation technology-centered patents, rather than basic/essential patents, seemed possible. Third, when the results of the analysis of research trends were comprehensively analyzed, international research on e-PBL- and medical simulation-centered medical learning support tools was seen to expand continuously to improve the clinical competence of medical personnel, which is directly linked to national health. Conclusions: The KM learning support tool model proposed in the present study is expected to be applicable to computer-based tests at KM schools and to be able to replace certain functions of national KM doctor license examinations once its problem DB, e-PBL, and TKM simulator have been constructed. This learning support tool will undergo a standardization process in the future.