建築設備工事의 施工性 向上에 관한 硏究(Ⅱ) : Focued on the Changes and Prior Coodinate 설계변경 또는 공사변경 및 이에 따른 사전협의를 중심으로

具滋斗,趙炯權 호남대학교 산업기술연구소 1999 산업기술연구논문집 Vol.7 No.-

건축물의 규모가 대형화, 고층화, 복잡화됨에 따라 건축설비공사의 중요성은 점차 증대되고 있다. 이에 본 연구에서는 건축설비공사와 관련된 설계변경 또는 공사변경 및 이에 대한 사전협의에 관한 설문조사를 실시하여 주력사업별과 자격 및 경력별로의 분석을 통해 건축설비공사의 시공성 향상을 증진하는 기초자료를 제공하고자 한다. Recently construction has become large in scale, high, complex, diverse, and professional, design and construction in building services must improve in precision. However, quite often people who carry out building services works do not prepare design documents, and poor construction with defects occur in construction site many times. To address this matter, I have conducted a questionnaire survey for this study. After the collected guestionaire data divided according to the kinds of major business and qualification educational background work experiences, the changes and prior coodinate in the design and construction of building services works are analyzed. Base on the above results, to suggest basic methodology of constructability improvement of building services work.

전산화 단층촬영술을 이용한 악하선 타석증의 진단

구치균,이종갑,이제호,최형준 大韓小兒齒科學會 1998 大韓小兒齒科學會誌 Vol.25 No.3

Sialolithiasis is the formation of calcareous concretions within ductal system of a major or minor salivary gland. They are formed by deposition of calcium salts around a central nidus which may consist of desquamated epithelial cells, bacteria, foreign bodies, or products of bacterial decomposition. An ll-year-old boy complained of pain during meals and intermittent mild swelling in the right submandibular region. Although it was not detected in true occlusal radiograph. panoramic radiograph showed a round radiopaque mass 3mm in diameter. Computed tomography (CT) was taken for locating the stone and 3-dimensional reconstruction was per-formed . Under general anesthesia, sialoadenectomy was done through extraoral approach. diagnosis of submandibular sialolithiasis using high-resolution CT with reconstructions was helpful for surgical decisions, namely radical removal of the submandibular gland and its duct.

주의력결핍 과잉행동장애 아동에 있어서 연속수행검사의 진단적 유용성

구본훈,박형배,이희정,송창진,김진성,이광헌 大韓神經精神醫學會 1999 신경정신의학 Vol.38 No.6

서 론: 본 연구는 주의력결핍 과잉행동장애(이하 ADHD) 아동과 정상대조군의 연속수행검사(이하CPT) 결과 양상을 비교하여 CPT의 진단적 유용성을 알아보고자 하였다. 그리고, ADHD 아동의 연령과 성별, 지능, 그리고, 장애의 유형 등과 같은 변수에 따른 CPT의 결과양상을 비교하여, CPT가 ADHD의 어떤 특성을 잘 반영해주는가를 알아보고자 하였다. 대상 및 방법: DSM-Ⅳ의 진단기준에 의하여 진단이 내려진 ADHD 실험군 68명과 정상대조군 30명을 선정하였으며, 두 군간의 연령과 성별을 통제하였다. 실험군과 정상대조군 모두 환아의 부모가 ADHD 평가척도(ADDES-HV)를 작성하였으며, 환아에게 직접 CPT를 실시하였고 지적 능력을 평가하기 위해 K-ABC를 시행하였다. 결 과: 실험군과 정상대조군에서의 CPT 결과 양상을 비교하였을 때, 실험군과 정상대조군 사이에 민감도가 유의한 차이를 나타내었고, 반응 기준도 유의한 차이를 나타내었다(p<0.05). ADHD 아동을 대상으로 연령과 지능의 변화에 따른 CPT의 결과 양상을 비교하였을 때, 연령과 지능이 증가함에 따라 CPT각각의 결과들도 대체로 수행력이 호전되는 경향을 나타내었다. 주의력결핍 과잉행동 장애의 유형을 과잉행동을 동반한 군과 과잉행동을 동반하지 않은 군으로 나누어 비교분석을 한 결과, CPT 각각의 결과에서 유의한 차이는 나타나지 않았다. CPT 결과 양상에 있어서 남녀간 차이점을 비교하였을 때, 오경보오류와 정반응시간의 표준편차, 표준편차의 다양성, 그리고, 민감도가 유의한 차이를 나타내었다(p<0.05). CPT 각각의 8가지 결과 변수들에 대해 판별분석을 실시한 결과, 각각의 결과 변수들에 있어서 진단에 대한 전체 판별력이 모두 50%이상을 나타내었다. 그 중, 정반응시간의 표준편차와 표준편차의 다양성, 그리고, 민감도는 진단에 대한 전체 판별력이 모두 60%이상을 나타내었다. 결론 및 고찰: 이러한 결과들은 CPT가 ADHD의 진단에 있어서 어느 정도의 유용성을 가지고 있다는 점을 보여준다 하겠다. 즉, ADHD에 있어서 CPT는 비교적 선별검사와 같은 목적으로는 유용할 것으로 생각되며, 이는 또한 CPT가 장애의 진단에 있어서 보조적인 검사도구임을 나타낸다 하겠다. Objectives: The purpose of this study was to examine to diagnostic availability of CPT in children with ADHD, and what factors are affected to CPT results in the diagnosis of ADHD. Method: CPT, ADHD scales(ADDES-HV), K-ABC were administered to 68 ADHD patients and 30 normal elementary school students as the control group. Also, ages and sex are controlled between two groups. Results: In the differences of the results of CPT between ADHD patients and normal subjects, attentiveness and risk taking are significantly different(p<0.05). In the differences of the results of CPT between ages in ADHD patients, usually as more aged children are better performances in CPT. Also, in the differences of the results of CPT between intelligence in ADHD patients, usually as higher intelligent children are better performances in CPT. There are no differences of the results of CPT between types of ADHD in ADHD patients. In the differences of the results of CPT between sex in ADHD patients, commission error, hit reaction time standard error, variability of standard error, and attentiveness are significantly different between male and female patients(p<0.05). The correlations between ADHD scales and the results of CPT show that inattention subscale is significantly related to hit, omission error, hit reaction time standard error, and variability of standard error. In the discriminant ability between ADHD patients and normal children by the results of CPT, accuracy rates are more than 50% in all results of CPT. Especially, the accuracy rate of hit reaction time standard error, and the accuracy rate of variability of standard error, and also, the accuracy rate attentiveness are more than 60%. Conclusion: In this point of view, this study suggest that CPT is relatively valuable method in the diagnosis of ADHD. For instances, CPT is more likely to screen the ADHD from normal children, or to use as assisted method of diagnosis of ADHD in clinical settings.

p-quasihyponormal 작용소에 관하여

차형구 漢陽大學校 自然科學硏究所 1999 自然科學論文集 Vol.18 No.-

Hlibert 空間위의 有界作用素 T가 T?((T?T)?-(TT?)?)T≥0을 만족하면 T를 p-quasihyponormal 作用素라 한다. 이 논문에서는 p-quasihyponormal 作用素 T와 ?=|T|?U|T|??의 order와 normality를 연구하였다. Let T be a p-quasihyponormal operator on a Hibert space H with the polar decomposition T=U|T|and ?=|T|?U|T|?? for r>0 and r≥t≥0. We investigate order and normality properies of ?.

大麥 및 白米 混合粉의 營養價値 硏究 : 第1報 보리의 搗精收率에 따른 營養價値 比較 硏究 Ⅰ. A Study on Some Nutritional Effects of Milling Recovery of Barley by Rats

辛炯泰,金永玉,具明子 成均館大學校 科學技術硏究所 1983 論文集 Vol.34 No.2

This experiment was conducted to observe the nutritional effects of milling recovery of barley (MRB) on the performance and digestibility by rats. Experiment was undertaken with 48 weanling male rats of Sprague-Dawley strain and they were evenly divided by 6 treatments, respectively, and feed and clean water were available, ad. libitum. In this experiment, the diets were consisted of corn starch+casein as control diet, 100%, 90%, 80%, 70% and 60% of MRB diet as experimental diets. For the experimental period, body weight gain(g), feed intake(g), feed efficiency ratio, protein efficiency ratio and digestibility (dry matter, organic matter, crude protein ; %) were measured to evaluate the nutritional effects of MRB diets for rats. The results which were obtained with this experiment as follows: 1. Average daily gain for 90%, and 100% MRB was 0.42g and for 70% MRB was 0.04g. And the differences between 80%, 90% and 100% MRB treatments and 70% and 60% MRB were significantly different(p<0.01). 2. Average daily feed intake was lower for 70% MRB of 3.41g and to increase the level of MRB tended to improve the feed intake, which followed the same pattern as the growth data. 3. Feed efficiency ratio was lower for 70% MBR of 0.01 and protein efficiency ratio was lower for 70% MRB of 0.15. 4. The range of dry matter digestibility was from 92.81% to 93.18%, organic matter digestibility was from 93.17% to 93.63% and protein digestibility was from 80.22% to 65.96% in 90%, 80%, 70% and 60% MRB, respectively. But there were no significant differences in dry matter, organic matter or protein digestibilities of experimental diets(p>0.01). And the digestibilities of dry matter, organic matter and crude protein for 100% MRB were significantly different compared with other treatments (p<0.01). So it may be concluded that 90% MRB would be the most nutritious processing method on the basis of feed intake, daily gain and protein metabolism by rats.

기질적 뇌증후군의 임상적 고찰

윤형구 大韓神經精神醫學會 1979 신경정신의학 Vol.18 No.3

The author made a clinical study of 112 inpatients with organic brain syndromes who had been admitted at the neuropsychiatric department of In Je Medical College, Paik Hospital during the past 4 years from Jan. 1975 to Dec. 1978. The results were as follows: 1. The proportion of organic brain syndrome was 12.4% of all hospitalized patients. The sex distribution was 63.4% (N=71) of male and 36.6%(N=41) of female. 2. The most common age was in the twenties. The highest frequency was seen in 40's in male, occupying 17% of all, and 20's in female, 12.5%. 3. The most frequent disease entity was idiopathic epilepsy (30.5%), and followed by brain trauma (15.2%), alcoholic psychosis (14.2%), senile and presenile dementia (8.0%), CO-intoxication (8.0%) and cerebrovascular disorder (7.1%). 4. The acute onset of symptoms (few minutes to several hours) occupied 58.0% of all cases, subactue form (within several days) 9.8%, and chronic form (more than several weeks) 32.1%. 5. Regarding to the clinical course, 55.4% of all cases showed clinical improvement and the rest were sustained, aggravated or resulted in death. 6. According to the diagnostic criteria of DSM-Ⅱ, 42.9% of all cases were found to be psychotic. 7. Among the neurololgical symptoms, the most frequent was convulsion, occupying 37.5% of all, and headache and dizziness (15.2%), incontinence (9.8%) were followed in successive order. On the other hand, acute delirious state was identified in 37.5% of all cases, behavior disorder was seen in 36.6%, and disorientation 26.0%. 8. The cases who were thought to be involved more than two etiological factors in their past history were 10.7%, and 14.3% of all was superimposed with functional mental disorders in the present clinical pictures. 9. Lesser than half (44.6%) of all cases were released from the hospital with the mutual consent between staff and patient. In this clinical study, it was intended to asertain the clinical findings in these patients by comparing with others' reports and to make them available to others for more advanced clinical subgrouping which is essential for specific diagnosis and adequate treatment.

建築設備工事의 施工性 向上에 관한 硏究 : 설비전담부서의 설치 필요성을 중심으로

조형근,구자두 호남대학교 1998 호남대학교 학술논문집 Vol.19 No.2

Recently construction has become large in scale, high, complex, diverse, and professional, and its consumers demand improved quality in living environments, design and construction in building services must improve in precision. However, quite often people who carry out building services works do not prepare design documents, and poor construction with defects occur in construction site many times. To address this matter, I have conducted a questionnaire survey with students in Honam Construction Engineering Education Center and officers and students in Army Engineering School for this study. The survey is about causes of poor construction that are requirement of employing specialist of building services, setup of a service department related with the matter. After the collected guestionaire data divided according to the kinds of major business and qualification educational background work experiences, the requirements of setup of a department exclusively responsible for building services and employment of relative specialists are analyzed. Base on the above results, to suggest basic methodology of constructability improvement of building services works.

첫번째 뇌졸중 환자에서 무증상 뇌경색 : 뇌자기공명영상 소견과 위험인자 MRI Findings and Stroke Risk Factors

윤신구,방차옥,성기범,박형국,신현길 대한신경과학회 1996 대한신경과학회지 Vol.14 No.1

압전변압기를 이용한 LCD Backlight용 구동회로의 개발

강태구,안형근,한득영 건국대학교 산업기술연구원 1998 건국기술연구논문지 Vol.23 No.-

This paper describes a driving circuit with a multi-layered piezoelectric transformer(MPT) for the LCD backlight of a portable computer. In order to develop the circuit, we measured at first the L, C, R of the MPT concerned. And, using the measured parameters of L,C,R, we designed and implemented circuits such as a voltage-frequency converter, comparator for tracking resonance frequencies varying when the backlight is turned on, power circuit with two MOSFETs, and triggering circuit with flip/flops. We showed the possibility of tracking the resonance frequency of the MPT under the various load conditions.

光合成産物의 轉流에 관한 硏究(I) : 水稻登熱期에 同化能과 無機成分에 대하여 A Study on the Relation of Photosynthetic Ability and Inorganic Constituents of Rice Plants in the Ripening Stages

李亨求 대구효성가톨릭대학교 1973 연구논문집 Vol.12 No.1

The photosynthetic abilities of the etiolated leaves with C-14 at the grain forming stage does not directly related to the yield value. As far as the contents of P2O5 and K2O was not considered as the limiting factors of low yield, the low content of Mn and SiO2 in leaf and stem of NongKwang might hindered the translocation of photosynthates from leaf to grain. Although it was a important factor the meteorological conditions on late september and early october seriously afectted the yield of NongKwang, a late rice variety, the fact that the higher G/S ratio of NongKwang, than BongKwang was calculated as 1.3% and 0.9% of total radiant solar energy. The redistribution of phosphate and potassium from the vegetative organs to the grain was confirmed. On the contrary, the most of manganese and silica was accumulated in the leaves and stem of rice plant. That the possibility of iron-redistrbution mostly identified as a immobile nutrient in the plant remains on question to be reexamined further more next time.