• Clinical and Experimental Reproductive Medicine
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• v.45 no.1
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• pp.48-51
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• 2018

We report the case of a 46-year-old Chinese male patient who visited our clinic complaining of infertility. Semen analysis revealed azoospermia, and azoospermia factor c region partial deletion (b1/b3) was detected using Y chromosome microdeletion analysis. Testicular sperm extraction was performed after genetic counseling. The bilateral ductus deferens and a portion of the epididymis were absent, whereas the remaining epididymis was expanded. Motile intratesticular spermatozoa were successfully extracted from the seminiferous tubule. On histopathology, nearly complete spermatogenesis was confirmed in almost every seminiferous tubule. To our knowledge, this is the first case report of b1/b3 deletion with a congenital bilateral absence of the vas deferens and almost normal spermatogenesis.

• Clinical and Experimental Reproductive Medicine
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• v.45 no.1
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• pp.44-47
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• 2018

Onco-testicular sperm extraction is used to preserve fertility in patients with bilateral testicular tumors and azoospermia. We report the case of a testicular tumor in the solitary testis of a patient who had previously undergone successful contralateral orchiectomy and whose sperm was preserved by onco-testicular sperm extraction. A 35-year-old patient presented with swelling of his right scrotum that had lasted for 1 month. His medical history included a contralateral orchiectomy during childhood. Ultrasonography revealed a mosaic echoic area in his scrotum, suggesting a testicular tumor. The lesion was palpated within the normal testicular tissue along its edge and semen analysis showed azoospermia. Radical inguinal orchiectomy and onco-testicular sperm extraction were performed simultaneously. Motile spermatozoa were extracted from normal seminiferous tubules under microscopy and were frozen. Eventual intracytoplasmic sperm injection using the frozen spermatozoa is planned. Onco-testicular sperm extraction is an important fertility preservation method in patients with bilateral testicular tumors or a history of a previous contralateral orchiectomy.

• Journal of The Korean Digital Architecture Interior Association
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• v.4 no.2
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• pp.35-43
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• 2004

Transformations of the urban spatial structure, from sub-area redevelopment to newtown development, results great influences upon existing urban condition and spatial configuration. The purpose of the study is to analyse the effect of the urban spatial configuration of Uijongbu city where experienced changes after newly development of city center and new residential area. The west part of the city where is limited in growth by military bases, ego U.S Army basecamp, were planned and established as the other axis of the city center since mid 1980's. After that new residential area which is located in far east of the city were also developed. Space syntax as a methodology has been adopted to conduct quantitative analysis which is able to interpret differences between sub-areas ; old city center, new city center, new residential area. The results of the analysis are follows ; 1) existing structure of the urban fabric, especially old city center, is sustained and intensified, 2) new city center which is west part of the city has failed to achieve organic spatial connection adjacent to old city center, 3) there is less spatial depecdency relationship between city center and new residential area where is identified as another small self-support city within the city.

• Journal of the Economic Geographical Society of Korea
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• v.22 no.3
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• pp.366-379
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• 2019

The purpose of this study is to review how to set city center's boundaries in proportion to the highest land values and to identify the characteristics and influence of the original and the new city center. For this purpose, the land values was compared and analyzed the city of Busan as an example using officially announced land price in 2000 and 2015. The main findings of the study are as follows. First, the method of delimitation city center's boundaries as a percentage of the highest land values depends on the flow of time or the social and economic situation of each city, so a careful approach should be taken. Second, the original city center's land values have a strong influence on the surrounding areas. However, given that the PLVI was moved to the new city center and new city center's land prices has increased, it is predicted that the new city center's area in Busan will grow further in the future.

• Korean Institute of Interior Design Journal
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• no.40
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• pp.102-108
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• 2003

Currently, there is no facility standard for a city public health center. The facility standard of rural public health center is referred to architectural plan of city public health center. This study is about architectural plan of the city public health center and have been in 7 public health centers in Daegu investigated. Conclusions can be summarized as follows: 1) The Mother and child hygienic section, area ratio which is presented by the facility standard of rural public health center must be increased in case of city public health center since function-reinforcement of the mother and child hygienic section is required. 2) Business section, the area ratio which is presented by the facility standard of rural public health center must be diminished for city public health center because it has been excessively allocated.

• The Journal of the Korea institute of electronic communication sciences
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• v.2 no.3
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• pp.191-198
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• 2007

It needs an Integration Management Center in u-City to mange all events for an efficiency of city function, to enhance an installed infrastructure of information, and to provide u-Service like residence, administration, and culture in real time. Integration Management Center is a place to provide a city information from gathering data of communication network, traffic network, and facilities. The u-Services in Integration Management Center need an Integrated Platform to integrate verticality and horizontality between service layer. This paper study an infrastructure of Integration Operation Center and Integrated Platform. Lastly the topics are suggested how to make it a success in u-City.

• Journal of Food Hygiene and Safety
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• v.22 no.4
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• pp.300-305
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• 2007

The purpose of this study is to examine changes in the residues of procymidone and diazinon in Chwinamul, pepper leaves, and young radish according to drying method. When the three vegetables were dried at room with air stream, the residues of procymidone and diazinon increased, but after being adjusted to reflect the decrease in water content of the vegetables, the residues declined by 10 to 83 percent. When they were dried in a oven, the residues of the pesticides in the vegetables also increased, but after being adjusted to reflect the drop in the water content, the residues decreased by 44 to 71 percent. According to the results, the residues of the pesticides mostly decreased after being adjusted to reflect the drop in the water content of the dried vegetables. Therefore, when judging dried agricultural products not only the decreased water content of dried vegetables but also other factors that affect pesticide residues during the drying process should be considered. This raises the need for additional research on such factors.

• 한국정보통신설비학회:학술대회논문집
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• 2008.08a
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• pp.59-62
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• 2008

성공적인 u-City 서비스를 제공하는데 있어 가장 중요한 역할을 수행하는 기능으로 u-City 통합운영센터가 지목되고 있다. 본 논문에서는 u-City 통합운영센터의 효율적인 운영 모델을 제안하였으며 이를 위해서 먼저 u-City 기술 참조모델을 기반으로 하는 표준화된 u-City 서비스 도입 및 운영 방안을 제시하였다. 또한 기존에 제공되고 있는 각종 도시 정보서비스를 점진적으로 u-City 서비스에서 수용하는 전략으로서 점진적 서비스 융합 방안을 제시하였다.

• Spatial Information Research
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• v.17 no.3
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• pp.269-276
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• 2009

For the development and management of u-City(ubiquitous city), Ubiquitous City Construction Law was enacted(March 3, 2008) to form the legal basis of u-City plan, construction and managements afterwards. Among u-City elements, the u-City Management Center has its own meaning and importance in roles which are crucial to the u-City developments, and its legal establishment is one of the core u-City realization factors. The purpose of this study is to analyse its overall problem issues regarding the function and location of u-City Management Center and then to suggest the basic direction and enforcement strategies to form its legal basis. As a result, in order to enhance the possibility of successful realization of u-City Management Center, the classification and standardization of function type, allocation of detailed functions based on u-City project hierarchy, and practical definition and relationships among basic u-City components such as u-City Service and Infrastructure were suggested. Also, practical execution devices on revenue sources and private sector participation, as well as the legal basis stipulating the mandatory inclusion of u-City Management Center development for u-City projects, were suggested.

• Journal of the Korean housing association
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• v.17 no.5
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• pp.137-146
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• 2006

This study was aimed to analyze the influences of urban expansion by developing a new large scale residential district on changes of whole urban spatial structure. For the analysis, time serial analysis was conducted on the Daejeon Metropolitan City by using the space syntax method. The results of the study are as follows ; First, an expansion of urban area led to lower both of the local and global integration levels, second, the spatial occupation ratio of upper 10% in the whole integration showed that old city center was separated, and moved to the Dunsan District, third, the results also showed that an integration of the old city center region maintained a high level in spite of a movement of city center and its local integration still had highest level so that the old city center will take one of the two city center roles together with Dunsan District.