• 한국측량학회지
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• 제34권4호
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• pp.425-430
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• 2016

Currently, start of the operation US GPS, the Russian Glonass, European Galileo, the Chinese Compass satellites for positioning are celebrating a true GNSS (Global Navigation Satellite System) generation. Korea is building advanced infrastructure such as a national network consisting of CORS (Continuously Operating Reference Station), VRS service for real-time precise positioning and perform continuous upgrading. However, the acquisition of geospatial information using the national infrastructure requires many steps and high dependence on foreign software part in this process. This study contributes to advanced construction technology of geospatial information by design of realtime GNSS surveying system. As a results, it has designed the surveying software that can effectively positioning realtime. Designed realtime surveying software can utilized in various fields.

• Human Ecology Research
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• 제59권1호
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• pp.45-58
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• 2021

The present study examined whether enjoyable couple activity and common dyadic coping as daily positive couple interactions have direct or indirect effects on marital satisfaction through the mediation of sexual intimacy among urban Chinese women in the early years of marriage. The subjects were 182 urban women born under the one-child policy, who live in Heilongjiang, Anhui and Beijing provinces of China, and have been married up to six years. Data were collected using a self-administered questionnaire. We conducted a hierarchical multiple regression analysis in SPSS software and tested the significance of the mediation effects using bootstrapping method in Mplus software. The results of the study are as follows. First, both enjoyable couple activity and common dyadic coping had positive direct impacts on urban Chinese women's marital satisfaction and positive indirect impacts on marital satisfaction via sexual intimacy. Second, enjoyable couple activity was the strongest predictor of marital satisfaction, followed by common dyadic coping and sexual intimacy. The path model explained 48% of the variance in marital satisfaction. The results suggest that enjoyable couple activity, common dyadic coping, and sexual intimacy should be considered in the design of interventions to enhance urban Chinese women's marital satisfaction in the early years of marriage.

• Journal of the Optical Society of Korea
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• 제20권4호
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• pp.500-509
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• 2016

Integrating spheres play a central role in the radiometric calibration of remote sensors. With the development of the wide field of view (FOV) remote sensors, aperture diameters of remote sensors are becoming larger and larger. To satisfy the radiometric calibration requirements of full FOV and full aperture, an 8000mm diameter large aperture integrating sphere uniform source with a variable exit port was designed and manufactured. This integrating sphere will be used for pre-launch test and radiometric calibration of remote satellites. In this paper, optical theories were used to design the output spectral radiance. The LightTools software based on ray-tracing simulation method was used to determine the best combination and distribution of inner light sources. A spectral experiment was made to verify the spectral radiance design. To reduce the influence of longtime power-on, a new characteristic measurement method was developed to obtain the radiation characteristic of the integrating sphere, which could greatly improve the measuring efficiency. This method could also be applied to measure other large aperture uniform sources. The obtained results indicate that the spatial uniformity is 98.35%, and the angular uniformity at center position is 98.78%.

• International Journal of Industrial Entomology and Biomaterials
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• 제11권1호
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• pp.49-55
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• 2005

Two BC1 group, c108 $\times$ (p50 $\times$ c108) and p50 $\times$ (p50 $\times$ c108), one group of F$_{2}$ progeny, (p50 $\times$ c108) F$_{2}$ ,and 3 SSR markers, F10539, FlO626 and FlO618 were used to test the hereditary properties of SSR markers in silkworm. FI0539, FlO626 were proved to be linkage, and FlO618 was proved to be independent to those two markers. According to Mendel's law, the recombinant value between F10539, FlO626 was calculated in all of these groups, and they were 8.55$\%$ (c108BC1), 8.02$\%$ (p50BC1) and 7.81 $\%$ (F$_{2}$) respectively. There was dominant difference among the crossing-over value using paired-samples tests by SPSS 10.0 software. This research proved that SSR markers were co-dominant in B. mori too, and F 2 progeny could be used to construct SSR linkage map although B. mori lacked of crossing over in females.

• 한국정보과학회논문지:소프트웨어및응용
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• 제33권5호
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• pp.470-480
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• 2006

입력문장이 길어질수록 구문분석의 정확률은 크게 낮아진다. 따라서 긴 문장의 구문분석 정확률을 높이기 위해 장문분할 방법들이 많이 연구되었다. 중국어는 고립어로서 자연언어처리에 도움을 줄 수 있는 굴절이나 어미정보가 없는 대신 쉼표를 비교적 많이, 또 정확히 사용하고 있어서 이러한 쉼표사용이 장문분할에 도움을 줄 수 있다. 본 논문에서는 중국어 문장에서 쉼표 주변의 문맥을 파악하여 해당 쉼표위치에 문장분할이 가능한지 Support Vector Machine을 이용해 판단하고자 한다. 쉼표의 분류의 정확률이 87.1%에 이르고, 이 분할모델을 적용한 후 구문분석한 결과, 의존트리의 정확률이 5.6% 증가했다.

• 한국농림기상학회지
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• 제20권2호
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• pp.205-213
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• 2018

작물 모델의 개발과 검증에 사용되는 생체중 자료는 파괴적 샘플링을 통해 얻어져 왔다. 파괴적 샘플링이 가지는 단점을 보완하기 위해 저가형 3D 센서인 Kinect 센서와 무료 공개 소프트웨어들을 사용하여 생체중을 추정하는 기법을 개발하였다. 특히, 많은 작물모델들이 개발되어 있지 않은 배추를 대상으로 입체이미지를 생성하여, 그로부터 얻어진 부피와 생체중 추정치의 신뢰도를 분석하고자 하였다. 크기가 다른 배추 결구 부위를 스캔하기 위해 Kinect 센서와, Microsoft가 무상으로 제공하는 Software Development Kit 내 Kinect Fusion Explorer 프로그램을 사용하였다. 개별 배추의 입체이미지를 생성하기 위해 3D 그래픽 편집 소프트웨어인 Meshlab을 활용하여 배경과 불필요한 물체를 수동으로 제거하였다. 또한, 불완전한 입체모델로부터 생체중 추정을 위해 3D 프린터 소프트웨어인 Makerbot Desktop 을 사용하여 배추를 생성하기 위해 필요한 플라스틱 필라멘트 소모량을 추정하였다. 입체모델 편집 프로그램인 Blender를 사용하여 부피를 추정하였을 때, 실제 부피에 비해 17.6%에서 2160.6% 범위의 상당한 오차가 있었다. 반면, 필라멘트 소요량은 실제 배추 생체중 변이의 98.7%를 설명할 수 있었다. 또한, 이들의 상관관계는 5% 수준에서 유의하였다. 이러한 결과들은 직접적인 부피 계산 절차를 제외하더라도 간편하게 생체중을 추정할 수 있음을 확인하였다. Kinect 센서를 사용하여 배추의 생체중 추정이 가능하다는 것이 확인 되었으나, 기존의 고가형 3D 센서에 비해 낮은 해상도와 주간에 활용이 어려운 점이 있다. 그럼에도 불구하고, 배추 생육 모델의 시계열적 검증 자료를 Kinect 센서를 이용하여 간편하고 신속하게 획득할 수 있어 모델의 불확도를 감소하는 데에 기여할 수 있을 것으로 판단된다. 따라서, 후속 연구에서 보다 저렴한 가격대의 3D 센서들을 대상으로 야외 및 주간조건애서 작물의 생체중 측정 가능성에 대해 검토하고 작물 모형 개발 및 개선을 위한 기술개발이 이루어져야 할 것으로 사료된다.

• 한국정보시스템학회지:정보시스템연구
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• 제28권2호
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• pp.109-127
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• 2019

Purpose South Korea and China have a long and deep relationship from ancient times to the present. There are many exchanges between economic and educational or other aspects. It will be interesting to compare the perceptions of preliminary entrepreneurs in South Korea and China. Design/methodology/approach This study attempts to analyze the intentions of Korean and Chinese entrepreneurs, and to find the differences between Korean and Chinese entrepreneurs. The research model of this study is composed of internal and external affecting variables, and one dependent variable as the intention of entrepreneurs. A structured questionnaire was distributed to college students and graduate students in South Korea and in China. Data have been analyzed using a Lisrel 8.80 software. Findings The results of this study indicate that all variables except for successful role model have a positive influence on entrepreneurial intentions. The nationality partially mediates the causal relationship between independent variables and dependent variable. Some discussion and implications are suggested.

• BMB Reports
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• 제40권1호
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• pp.72-81
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• 2007

In order to screen the aging related proteins in human normal colon epithelia, the comparative proteomics analysis was applied to get the two-dimensional electrophoresis (2-DE) profiles with high resolution and reproducibility from normal colon epithelial tissues of young and aged people. Differential proteins between the colon epithelia of two age groups were found with PDQuest software. The thirty five differential protein-spots were identified by peptide mass fingerprint (PMF) based on matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOFMS) and database searching. Among them there are sixteen proteins which are significantly up-regulated in the colonic mucosal epithelia of young people group, which include ATP synthase beta chain, electron transfer flavoprotein alpha-subunit, catalase, glutathione peroxidase 1, annexin A2 and heat shock cognate 71 kDa protein, etc.; There are nineteen proteins which are significantly up-regulated in the colonic mucosal epithelia of aged people group, which include far upstream element-binding protein 1, nucleoside diphosphate kinase B, protein disulfide-isomerase precursor and VDAC-2, etc.. The identified differential proteins appear to be involved in metabolism, energy generation, chaperone, antioxidation, signal transduction, protein folding and apoptosis. The data will help to understand the molecular mechanisms of human colon epithelial aging.

• Journal of the Optical Society of Korea
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• 제19권2호
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• pp.136-143
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• 2015

Image deblurring by a deconvolution method requires accurate knowledge of the blur kernel. Existing point spread function (PSF) models in the literature corresponding to lens aberrations and defocus are either parameterized and spatially invariant or spatially varying but discretely defined. In this paper, a parameterized model is developed and presented for a PSF which is spatially varying due to lens aberrations and defocus in an imaging system. The model is established from the Seidel third-order aberration coefficient and the Hu moment. A skew normal Gauss model is selected for parameterized PSF geometry structure. The accuracy of the model is demonstrated with simulations and measurements for a defocused infrared camera and a single spherical lens digital camera. Compared with optical software Code V, the visual results of two optical systems validate our analysis and proposed method in size, shape and direction. Quantitative evaluation results reveal the excellent accuracy of the blur kernel model.

• 헤리티지:역사와 과학
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• 제50권2호
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• pp.80-93
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• 2017

본 연구는 훼손된 금석문의 과학적 판독방법을 제시하기 위한 것이다. 이를 위해 한자를 좌표화하였다. 좌표화한 글자의 부분에서 온전히 남은 부분과 훼손된 부분이 존재하는 다른 글자를 찾아 부분적인 훼손글자를 판독하는 방법이다. 부수의 위치에 따라 한자를 9칸으로 나누었으며 9칸에 해당하는 글자의 형태를 검색하여 해당글자를 찾아가는 방식이다. 이는 기존의 문맥을 통한 판독보다 과학적이며 판독글자 외에도 후보글자를 파악할 수 있어 보다 정확한 판독을 가능하게 해준다. 이 알고리즘을 바탕으로 소프트웨어를 만든다면 현재 사용되지 않는 고한자(古漢字; 과거에 사용되었으나 현재는 사용되지 않는 한자)를 판독하는 고문서나 금석문 판독에 유용하게 사용될 수 있을 것이다. 앞으로 행서나 초서 역시 같은 방법으로 후속 연구를 진행한다면 금석문 판독 및 훼손글자 판독에 큰 도움이 될 것으로 생각한다.