• 치과방사선
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• 제14권1호
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• pp.99-107
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• 1984

The auther studied clinically and. radiologically 48 cases which had been diagnosed as TMJ ankylosis in SNUDH (1974-1984). The purpose of this study is to analyse clinical features of TMJ ankylosis and to evaluate the effect of TMJ ankylosis on the growth of the mandible. The obtained results were as follows: 1. Total 48 cases of TMJ ankylosis patients consist of 23 males and 25 females. 65 percent of all cases of TMJ ankylosis occurred in patients between 1 and 10 years of age. The awerage age at the onset of ankylosis was 11.7 and average duration at the time of examination was 11.7 years. 2. Unilateral akylosis (81.3%) was more frequent than bilateral ankylosis (18.7%). 3. Traum a (57.9%) and infection (21.2%) were main etiology. 4. Inability to open the mouth (78.3%) and facial asymmetry (17.4%) were main chief complaints. 5. Mandibular morphology through radiographic features. (a) In TMJ ankylosis patients the ramus length of the ankylosed side was shorter than that of the non-ankylosed side. Comparing with the centrol group, ramus length of the each side was shorter than normal value. (b) The partial body length of the ankylosed side was longer than that of the non-ankylosed side. Comparing with the control group, partial body length of the each side was longer than normal value. Partial body length was related with antegonial notch depth. (c) Ratio of upper and lower ramus length at the level of mandibular foramen was smaller in ankylosed side than in non-ankylosed side. (d) Antegonial notch depth and ramus posterior contour depth were deeper in ankylosed side than in non-ankylosed side and those of both sides were deeper than normal value. (e) Gonial angle in ankylosed side was larger than in non-ankylosed side and that in both sides was smaller than normal value.

• Clinical and Experimental Reproductive Medicine
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• 제20권1호
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• pp.45-51
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• 1993

Micromanipulation procedures have been used to improve fertilization rates in patients with male factor or with unexplained infertility. Partial zona disseetion(PZD), a method using mechanical force to open the zona pellucida increase the chances of fertilization. The purpose of this study is to increase rates of fertilization and pregnacy in the ART program by using PZD. The influence of PZD on the fertilization rate was investigated in 57 couples with semen defects, antisperm antibodies(ASA), or unknown factors. PZD directly performed in 35 couples with a history of fertilization failure in previous cycle (Group 1), and PZD applied in 22 couples with the failure of initial fertilization in the same cycle (Group 2). The fertilization rates of the male facor, ASA positive factor and unknown factor in Group 1 were 37.6%, 20.0% and 59.2%, respectively. The rates of fertilization of male factor, ASA positive factor and unknown factor in Group 2 were 34.8%, 20.0% and 26.5%, respectively. The incidences of polyspermy in Group 1 and Group 2 were 5.9% and 9.0%, respectively. Among 35 patients of Group 1, one patient was pregnant and successfully delivered, whereas 1 of 22 patients of Group 2 became pregnant, but aborted at 7 weeks.

• Clinics in Shoulder and Elbow
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• 제1권1호
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• pp.109-117
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• 1998

저자들은 1994년 1월부터 1995년 6월까지 충돌증후군 및 회전근개부분파열에 대하여 관절경적견봉성형술과 개방적 견봉성형술을 시행하여 이에 대한 결과를 비교 분석하였다. 대상 환자는 총 53명 으로 관절경 적견봉성형술을 시행한 환자(제 1군)는 43명으로 46례 였으며 , 개방적 견봉성형술을 시행한 환자(제 2군)는 10명 으로 11례 이었다. 평균 추시기간은 18.5개월(10-27개월)이며 , 수술 당시의 평균연령은 48세(18-73세)였다. 수술후 치료결과에 대하여 분석한 결과 제 1군에서 제 2군보다 동통의 감소,능동적 상지 거상 범위, 기능적인 면,근력 그리고 술전 및 술후 측정한 견관절의 총괄적 점수의 향상에 있어서 우위를 보였다. 또한 환자의 만족도에서도 제 1군이 높았으며, UCLA견관절 평가지수에서도 제 1군은89%,제 2군은 82%로 약간의 높은 점수를 보여 주었다. 이와같은 결과는 관절경적 견봉성형술이 개방적 견봉성형술에 비해 삼각근의 기시부를 보존함으로써 술후 이환율을 줄이고, 또한 물리치료를 적극적으로 조기에 시작할 수 있는 잇점이 있어 더욱 좋은 결과를 얻을 수 있었으리라 사료되는 바이다.

• 한국광물학회지
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• 제16권1호
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• pp.49-63
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• 2003

흔히 발견되지 않는 광물상들이 후기 열수변질광물로서 거도광산에서 관찰된다. 열수광물들은 스카른 광물들을 열수변질시키거나 공간충진 정출작용으로 산출된다. 즉, 투휘석, 석류석 및 장석들을 교대하여 녹니석과 포도석, 일라이트 및 펌펠리아이트 등을 산출하거나 열극이나 정동에서 정출한 것으로 포도석, 펌펠리아이트, 클리노조이사이트, 일라이트 및 Ca-불석(스틸바이트와 스텔러라이트) 등이 있다. 이들 열수광물들에 대해 X-선 회절분석, 주사전자현미경 관찰 및 전자현미분석을 통해 광물상과 산출상태 등이 상세히 규명되었다. 후기 공간충진 열수광물들을 대상으로 슈라이네마크 작도법에 의한 상평형 관계를 규명하였으며, 등온-등압 $\mu$$H_2O$-$\mu$$CO_2$상평형도를 작도하였다. 그 결과 초기에 정출된 포도석, 펌펠리아이트, 클리노조이사이트, 일라이트 및 녹니석은 비교적높은 $CO_2$분압과 낮은 $H_2$O 분압 하에서 먼저 정출되었으며, 그 후 $H_2$O 분압이 증가하면서 일라이트와 수반되어 스틸바이트와 방해석이 정출되었다.

• 교육시설
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• 제10권2호
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• pp.15-22
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• 2003

The purpose of this study is to find problems and to provide architectural design standards of the Learning Space Unit(L.S.U.) in Elementary Schools through the Post-occupancy Evaluation(POE). In this study, we found six major problems of the type of the L.S.U. in elementary schools. More than 50% of users expressed dissatisfactions in these items : size, safety, cooling facility, noise, privacy and primary meaning for its original purpose. After the interrelation-analysis, we checked pros and cons about each forms of L.S.U. It is the result of analysis of the layout method in L.S.U. 1) "$8.4m{\times}8.4m$" classroom unit got the highest positive responses 2) "2-classroom type" and "4-classroom type" got higher score than "3-classroom type" 3) "Whole faced type" 1) made more active Multi-space than "Partial faced type" 4) prefered prepared "Open-classroom" to "Closed-classroom" 5) 'Zoning type between L.S.U.s' couldn't influence to user's responses. Designers can consult those informations when they plan a new, remodeling and additional elementary school.

• Journal of Korean Neurosurgical Society
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• 제49권4호
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• pp.245-247
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• 2011

There were only a few reports of mercury on pulmonary artery. However, there is no data on surgery related mercury dissemination. The objective of the present article is to describe one case of postoperative injected mercury dissemination. A 19-year-old man presented severe neck pain including meningeal irritation sign and abdominal pain after injection of mercury for the purpose of suicide. Radiologic study showed injected mercury in the neck involving high cervical epidural space and subcutaneous layer of abdomen. Partial hemilaminectomy and open mercury evacuation of spinal canal was performed. For the removal of abdominal subcutaneous mercury, C-arm guided needle aspiration was done. After surgery, radiologic study showed disseminated mercury in the lung, heart, skull base and low spinal canal. Neck pain and abdominal pain were improved after surgery. During 1 month after surgery, there was no symptom of mercury intoxication except increased mercury concentration of urine, blood and hair. We assumed the bone work during surgery might have caused mercury dissemination. Therefore, we recommend minimal invasive surgical technique for removal of injected mercury. If open exposures are needed, cautious surgical technique to prohibit mercury dissemination is necessary and normal barrier should be protected to prevent the migration of mercury.

• 농촌지도와개발
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• 제16권1호
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• pp.153-180
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• 2009

The previous researches about knowledge sharing were proceeded in terms of KMS (Knowledge Management System) in center. However, knowledge sharing is recently applied to Internet space, which is open to every users, as well as KMS, which is qualified for restricted people. For example, some portal sites, such as Naver, the most popular portal in Korea, have virtual spaces to share users' knowledges and it is common that many users use the spaces. Knowledge sharing online, compared with KMS, will be more advanced to promote intention for knowledge sharing because of the character of Internet space that is open to all users. Nevertheless, there are few researches about knowledge sharing in the Internet. Considering this situation, this study is attempted to figure out the factors to promote Internet knowledge sharing, based on social capital theory and self-expression concept. A survey of experienced Internet user and PLS (Partial Least Square) were utilized for analysis. The test of this study reveals that social capital and self-expression are significant factors to influence knowledge sharing intention, and that also personal innovation and self-efficacy are significantly related to the self-expression. However, personal innovation does not have significant impact on social capital. According to the result, self-expression, as well as trust and system itself, has significantly effect on knowledge sharing intention in order to promote knowledge sharing in the Internet.

• 한국의류산업학회지
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• 제13권5호
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• pp.734-742
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• 2011

This study has been undertaken as a basic research for automatic pattern design for baseball uniforms manufactured under custom-MTM system, propose building up of a system whereby various partial patterns are combined under an automatic design system and develop a multi-combination type pattern searching algorithm which allows development of a various designs. As a result of this, type classification based on pattern design elements includes side, open, collar, facing and panel type. Design have been divided into coarse classification ranging from level 1 to 7 according to pattern design elements, based on a design distribution chart. Out of 7 such levels, 3 major types determining design which are, more specifically, level 1 sleeve type, level 2 open type and level 3 collar type, have been taken and combined to determine a total of 12 types to be used for design classification codes. Respective name of style and patterns have been coded using alphabet and numerals. Totally, pattern searching algorithm of multi-combination type has been developed whereby combination of patterns belonging to a specific style can be retrieved automatically once that style name is designated on the automatic pattern design system.

• 한국도서관정보학회지
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• 제23권
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• pp.109-145
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• 1995

This study is to find out general problems a n.0, ppeared in the management and utilization of these and dissertation and to suggest some recommendations, through the survey and analysis on the Korean university libraries. Questionnaires were sent to 109 university libraries which offer master's and doctoral degrees, during the period between March 7 and March 27, 1995. Responded questionnaires of 91 libraries (about 83%) were processed using SAS. The results of this survey can be summarized as follows: 1. Most of Korean university libraries have the collections of theses and dissertations ranging from less than 10,000 volumes (27 libraries ; 32.1%) ; 10,000 to 30,000 volumes (20 libraries ; 25.0%) ; to more than 80,000 volumes (16 libraries ; 19.0%). The largest collection was around 200,000 volumes. 2. In the management of them, 35 libraries (38.5%) were active in collecting them, but 56 libraries (61.5%) were not active, mainly for the shortage of manpower and the space problems. In 62.6% of libraries, they are arranged with the books. And 51.3% of libraries process them in less than one month. 46 libraries (52.9%) computerize their system, and among them 40 libraries (87%) establish their own databases. 3. The collections of theses and dissertations are called by various name, including periodical room, theses room, reference reading room etc. reaching to 15 kinds. 71 libraries (78.0%) adopt open system, and 17 libraries closed system ; and 2 libraries (3.2%) partial open system. 62 libraries (68.1%) arrange them in the order of call number, while 20 libraries (31.9%) by other criteria.

• 한국초지조사료학회지
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• 제34권3호
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• pp.214-218
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• 2014

This study was conducted to assess the feasibility of near-infrared reflectance spectroscopy (NIRS) as a rapid and reliable method for the estimation of crude protein (CP) fractions in forage legume mixtures (sudangrass and pea mixture, and kidney bean and potato mixture). A total of 178 samples were collected and their spectral reflectance obtained in the range of 400~2,500 nm. Of these, 50 samples were selected for calibration and validation, and 35 samples were used for calibration of the data set, and the modified partial least square regression (MPLSR) analysis was performed. The correlation coefficient ($r^2$) and the standard error of cross-validation (SECV) of the calibration models in the CP fractions, A, B1, B2, B3, and C, were 0.94 (1.05), 0.92 (0.74), 0.96 (0.95), 0.91 (0.42), and 0.83 (0.38), respectively. Fifteen samples were used for equation validation, and the $r^2$ and the standard error of prediction (SEP) were 0.87 (1.45), 0.91 (0.49), 0.94 (1.13), 0.36 (0.96), and 0.74 (0.67), respectively. This study showed that NIRS could be an effective tool for the rapid and precise estimation of CP fractions in forage legume mixtures.