• 통상정보연구
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• 제16권4호
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• pp.439-455
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• 2014

한국의 교역수지는 지속적인 흑자 기조를 유지해 오고 있으나, 한 일간 교역수지는 만성적인 적자를 기록해오고 있으며, 최근 수출입통계 자료를 조사해 본 결과 이러한 문제에 일본산 소재품목들이 큰 영향을 미치고 있었다. 따라서 본 연구에서는 일본산 소재품목들 중 교역수지 적자에 큰 비중을 차지하고 있는 화합물 및 화학제품군 12개 품목에 대한 최근 8년간의 수출입통계를 기반으로 한국시장에 대한 경쟁력 분석을 실시하였다. 연구 방법론으로는 특정 품목의 일정 국가에 대한 경쟁력 분석에 주로 사용되어지는 시장점유율, 무역특화지수, 시장별비교우위지수를 사용하였다. 분석결과에 따르면, 조사대상 12개 품목 중 농약과 화학섬유를 제외한 대부분의 관련 제품들이 한국시장에서 상당 정도의 경쟁력을 확보하고 있는 것으로 나타났고 특히, 사진용 화학제품 및 감광재료와 도료 및 인쇄잉크 제품은 50%를 상회하는 시장점유율, 0.8이상의 무역특화지수, 3이상의 시장별비교우위지수를 기록하여 한국시장내 경쟁력이 매우 우월한 제품인 것으로 조사되었다. 따라서 향후 우리나라 관련 산업의 발전과 무역수지 적자 해소를 위해서는 동 제품 생산 기업의 기술개발 노력과 정부 당국의 과감한 정책적 지원책이 요구되어진다.

• Journal of information and communication convergence engineering
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• 제12권4호
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• pp.246-251
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• 2014

The recent rise of the three-dimensional television (3DTV) industry has led to a wide exploitation of the dual-lens stereoscopic camera. However, when the zoom-in function is used, it is possible that a camera object is magnified only with a fixed convergence point, thereby leading to visual discomfort. In this paper, we propose several methods based on which a convergence point can be adjusted to prevent visual discomfort during zoom-in for a dual-lens stereoscopic camera. Further, we produce 3D contents by applying the proposed methods to certain cases and at certain distances and conduct a subjective evaluation. On the subjective evaluation, 48 subjects watch the 3D contents created by the proposed methods and score the stages of the visual comfort. The result of the subjective evaluation shows that some of the proposed methods are more efficient than the others. We hope that these proposed high-efficiency methods can be applied to produce a dual-lens stereoscopic camera that allows convenient stereoscopic photography.

• 한국비블리아학회지
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• 제21권3호
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• pp.109-122
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• 2010

본 연구는 KDC 예술류의 분류항목의 전개가 초판에서 5판까지 개정되는 동안 어떻게 변천되었는지를 분석하여 KDC 예술류의 분류항목전개의 개선점을 제안하는 것이다. 이를 위하여 KDC 초판에서 5판까지 예술류에 사용된 용어의 변천, 보조표 및 주기의 변천과 분류항목전개의 변천을 분석하였다. KDC의 예술류는 3판까지 큰 변화가 없었으며, 분류항목전개의 변화는 4판과 5판에서 많이 이루어졌으나, 전판의 오류와 문제점이 완전히 개선되지는 않았으며, 포함주가 많아 분류항목의 전개가 다른 분류표보다 빈약하였다. 분석결과를 바탕으로 문제의 해결방안을 제시하였다.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2004년도 춘계학술대회
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• pp.2076-2081
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• 2004

Future exhaust gas limits for diesel-driven passenger cars will force the automotive industry to significantly improve the performance of engine. Since modern common-rail injection systems deliver more degrees of freedom referring to the injection process, again the optimization of the injection process could offer a possibility to meet the exhaust gas limits. This study describes the characteristic the pilot spray structure of piezo-driven injector for a passenger car common-rail system to be applicable multiple injection caused by fast response rather than solenoid-driven injector. The piezo-driven injector is prototype injector with same needle chamber of solenoid injector and the solenoid-driven one is commercial injector. The pilot spray characteristic such as spray tip penetration, spray speed, spray angle were obtained by spray images, which is measured by the Mie scattering method with optical system for high-speed temporal photography. It was found that piezo-driven injector effected electric change as important factor and showed faster response than solenoid-driven injector.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2021년도 춘계학술대회
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• pp.312-314
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• 2021

정부는 드론을 미래 핵심 성장 동력으로 보고 국가 주도 드론 산업 육성 방안을 마련하고 물품 수송, 산림 보호 및 감시, 시설물 안전 진단 등 다양한 분야에서 시범사업을 하고 드론활용에 적극적이다. 특히, 경찰에서는 실종자 수색을 위해 드론 활용을 시도하고 있으나 기존드론은 배터리 시간의 제약으로 운용시간이 짧고 야산이나 수풀이 우거진 현장에서는 산위에서 항공촬영으로 수색할 수밖에 없어서 효과성이 미흡하다. 본 연구에서는 실종자 수색의 한계점을 극복할 수 있는 드론으로서 가상현실을 활용한 FPV(First Person View)드론을 제안하다.

• International Journal of Advanced Culture Technology
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• 제11권2호
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• pp.64-72
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• 2023

This paper discusses the technical exploration of Ang Lee's cinematic works and the unique visual beauty he presents. Ang Lee has successfully tackled various themes and genres, creating films that harmoniously blend Eastern and Western cultural sensibilities. These films are technologically innovative and show the interaction between technology and art, industry and culture. Therefore, this paper analyses the correlation between film technology and visual beauty in Ang Lee's works, and explores the discourse on how the relationship between film technology and art has changed with the development of film. Furthermore, this paper aims to provide insights into how technological innovation can enhance artistic creativity. The contribution of this study lies in the in-depth exploration of the relationship between film technology and art, with a focus on technological innovation and the visual beauty in Ang Lee's works. The research findings reveal that Ang Lee's films showcase the application of advanced technologies, captivating audiences with their unique visual aesthetics. The utilization of emerging technologies enables his films to possess not only visual impact but also convey profound emotions and themes. We conclude that technological innovation in film not only provides artists with more creative tools and expressive techniques but also, when combined with artistic sensibilities, creates captivating and visually expressive cinematic works. This discovery offers a new perspective for film production and opens up greater possibilities for collaboration between artists and technology experts.

• 한국측량학회:학술대회논문집
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• 한국측량학회 2004년도 Korea-Russia Joint Conference on Geometics
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• pp.16-21
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• 2004

In recent years, the importance of geospatial data have been emphasized not only for the national GIS programs and but also in the value added commercial and industry markets. There is no doubt that GIS, GPS, aerial and satellite imagery data were provided powerful tools to support national information infrastructure for geospatial database. While great emphasis has been laid on the geospatial data, there has been little analysis or evaluation of how to maximize the benefits of using these information sources. Also, with the proliferation of geographic data and information sources such as satellite imagery, digital aerial photography, digital topographic and vector data, there is a great need to inform professionals from all disciplines as to the benefits of these information sources and how to best put them to use within any given application. From the first publication of KSGPC(Korean Society of Geodesy, Photogrammetry and Cartography) papers in 1981, our objective was, and is, to help develop the wider spectrum of GIS in the academy and industry by exposing new users to the benefits of GIS, remote sensing, mapping, GPS and photogrammetry. In this presentation, we will introduce KSGPC works and will evaluate GIS-related governmental policies and programs in Korea for the past and the future to present different status between Korea and Russia. It is now important to investigate lessons learnt from two countries' experiences and developed an empirical framework to combine outcomes from GIS-related researches in Korea and Russia. This may enable GIS professionals to gain a wider range of experiences in the international context, and consequently, help them to develop new markets for GIS. Therefore, we arranged the possible action items and interesting points to corporate and to promote the academic growth in the practice of GIS.

• 방사선산업학회지
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• 제10권4호
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• pp.249-255
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• 2016

This study, Seoul City shelter, you are trying to seek medical cooperation and cure rate increase proposal Yu findings's current situation and tuberculosis of homeless tuberculosis. Inspector, and has a total 591 people is targeted to implement an interview after acquiring utilization agreement in studies conducted chest X-ray photography. Of the interview questions, three or more protons, it is determined that the TB symptomatic conducted sputum examination, chest X-ray examination confirms the physician radiology, when sputum examination primarily chromatic findings the double implemented and conducted by requesting the ship inspection also said inspection sputum acid-fast bacteria if it is true one, respectively. confirmed case result of checking whether there is a difference due to risk factors(Jb) at the chi square black, it was found that there is no statistically significant difference at 95% confidence level. (${\chi}^2=0.276$, p>0.05), suspected case (Ac, Ae) results of examining whether there is a difference due to risk factors in chi square black, that there is a statistically significant difference at 99% confidence level is I found (${\chi}^2=9.414$, p<0.01). The nature of the homeless tuberculosis screening and directed to the distance homeless specific location are likely to evaluate the actual incidence low and aggressive or management needs, the rationale is allowed insufficient reality is. Through this research, future, for tuberculosis high risk tuberculosis patient, such as homeless to expand the tuberculosis screening of infectious tuberculosis patients in private medical institutions, and one-stop service that chest X-ray examination and sputum examination is carried out at the same time introduced immediately to prevent the inspection and examination, cure, and should establish a foundation that can be up to post administration.

• 한국산업융합학회 논문집
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• 제26권4_2호
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• pp.697-703
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• 2023

Intertidal zones, akin to tidal flats, are among the potential areas where underwater cultural heritage might be submerged. However, the shallow depths in these regions present challenges for conventional vessel-based survey methods. Moreover, during low tides, intertidal zones transform into tidal flats, limiting the efficiency of survey efforts due to restricted access and potential risks. As a result, proper underwater cultural heritage surveys encounter difficulties in these environments. In recent times, extensive research is underway to address these issues by investigating underwater cultural heritage surveys in intertidal zones, encompassing diverse fields, including equipment-based investigations. This study aimed to explore the feasibility of utilizing unmanned aerial vehicles (UAVs) to conduct intertidal cultural heritage surveys, employing aerial photography and 3D mapping to create detailed orthoimages and 3D models. The study focused on assessing the potential application of these techniques for cultural heritage surveying within intertidal zones. Notably, the survey conducted in Jindo's Naesan-ri demonstrated high-resolution capabilities, enabling the distinction of actual pottery fragments mixed within gravel fields. Similarly, in the survey of Jindo's Byeokpa-hang, it was found that a wooden pillar structure existed in a section about 200m long. The integration of various sensors, including LiDAR, with UAVs allows for diverse investigation possibilities, including bathymetric measurements, and is expected to facilitate the acquisition of varied datasets for further research and assessment.

• 한국산업융합학회 논문집
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• 제26권5호
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• pp.775-784
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• 2023

Drone images are being used more and more actively in the fields of surveying and spatial information, and are rapidly replacing existing aerial and satellite images. The technology of quickly acquiring real-time data at low cost and processing it is now being applied to actual industries beyond research. However, there are also problems encountered as this progresses. When high-resolution spatial information is acquired using a general 2D flight plan for a terrain with sever undulations, problems arise due to the difference in resolution of the data. In particular, when a low-altitude high-resolution image is taken using a drone in a mountainous or steep terrain, there may be a problem in image matching due to a resolution difference caused by terrain undulations. This problem occurs because a drone acquires data while flying on a 2D plane at a fixed altitude, just like conventional aerial photography. In order to acquire high-quality 3D data using a drone, the scale difference for the shooting distance should be considered. In addition, in order to obtain facade images of large structures, it is necessary to take images in 3D space. In this study, in order to improve the disadvantages of the 2D flight method, a 3D flight plan was established for the study area, and it was confirmed that high-quality 3D spatial information could be obtained in this way.