아파트 안방의 공간구성요소에 관한 연구

이청웅,강형구,박수연 朝鮮大學校 建設技術硏究所 2002 建設技術硏究 Vol.22 No.1

In this study, as it is said that housing planning can be completed in correlation with major living space, they should recognize the characteristic of furniture use as well as various activities of life as well as various activities of life which are carried omit at home. In this study, the results of each research are summarized as follows. First, diverse activities of life focused on personal lives took places in An-bang. The type of furniture use was composed of standing-oriented type, both standing and sitting and continuous sitting type. When it comes to the preference of the use of furniture, most people preferred to use beds and sofas, they also wanted to diminish An-bang and expand a living room. Second, focused on the pattern of furniture use according to the characteristic of each dweller, the younger, and the more educated, the more they used An-bang as a main space for the husband and wife and they referred to use in a standing-oriented furniture. They also wanted to expand a living room instead of curtailing An-bang in the use of space. Third, when 1 studied main activities of life according to the type of furniture use, there weren't any family activities of life at An-bang in case of standing-oriented type families. There were a few activities of life in case of continuous sitting type and both the standing and sitting type families, but it scarcely happened. Regardless of the type of furniture, people preferred to expand the living room instead of diminishing An-bang. Fourth, the age of housewives turned out to influence the type of the use of furniture, so 1 could come to a conclusion that younger Housewives preferred to buy a standing-oriented furniture, there wasn't any difference in a living room.

LLangmuir等溫吸着式에 依한 燐酸의 吸着極大에 關한 硏究

李亨求 대구효성 가톨릭 대학교 1975 연구논문집 Vol.16 No.1

燐酸含量이 다른 3가지 畓土壤試料에 대해 반응용액 中에 燐酸濃度를 0.22ppmP에서 60ppmP까지 달리했을 때 P-32로서 標識시킨 表面置煥燐酸으로서의 吸着能을 Langmuir Adsorption Isotherm으로서 비교검토하였다. ① 3.0ppm까지의 低濃度에서 Fe-Pfraction이 많았으나 濃度가 증가할 수록 Al-p fraction의 존재비율이 현저하게 증가하였다. ② 濃度增加와 燐酸吸着은 指數函數的으로 表現되었고, 3∼30ppm 범위內 직선관계를 토대로 한 ??는 45∼73mgP/100g 내외였고 kρ는 0.1∼0.2P (mol/liter)??였다. ③ ??나 kρValue는 물론이고 單位表面積當 ??, O.M., E-. A-Value, ?? 등은 일차적으로 粒子組成에 支配되어 되었다. ④ 현재 施用되는 燐酸料供給量 ??는 ??에 比해 너무 낮아 결과적으로 有意性있는 效定이 어려운 原因이 되는 듯하다. The effect of different concentrations of phosphorus, 0.2∼60ppm p, in equilibrating solution on the maximum adsorption of phosphorus on the surface of soil particles with the linear function as the monomolecular layer from the Langmuir Adsorption Isotherm was examined, and the amount of P adsorbed was evaluated on the base of isotopic exchange surface P. labelled with p-32. 1) At lower concentration than about 3.0 ppm, the most part of soil P fractions existed as Fe-P fractions, but at higher than that, Al-p fraction increased considerably. 2) B??. Value experimentally calculated was obtained to 45∼73mg P per 100?? soil, and kρvalue was to 0.1∼0.2 p (m per liter) within the P concentratratin of solution from 3.0 ppm to 30ppm P. 3) Comparing the values, ??, A-value etc., per unit surface area, the whole surface area perunit weight of soil was primarily considered as the impotant physical factors to determine the degree of P adsorption. Consquently the amout of fertilizer P generally recommended seems to be too small to compared with the ?? value, and it cause actual difficulties to interpret any significant effect of P applied nowadays.

가로변 건축물 외관에 있어서 창의 이미지 특성에 관한 연구

이청웅,양동협,강형구,최환석 朝鮮大學校 建設技術硏究所 2000 建設技術硏究 Vol.20 No.1

The window in architecture has a mysterious role connecting the indoor and outdoor world and also an interaction. this study investigates the functions of the past and present windows and its functions which will be required in future and aims a t seeking a planning direction of desirable window by integrating the understanding of window plan in outdoor space of building and new design techniques. The origin of window and its developmental process are expressed primarily by internal functions and it has been discussed from the external viewpoint with the development of structure, materials and social and cultural aesthetic sense. Accordingly it describes the history and place of windows to define the functions of windows and Chapter 2 states the forms, functions and treatments of window opening part according to the times. Chapter 3 cites the cases of the prototypes of forms shown in the outside of building as the functional and design elements windows in building. Chapter 4 suggests the positive cases of window prototype which produces the outdoor space of modern architecture and examines the correlation of it to the various elements according to the objective methods and order on the basis of SD method. Consequently, the windows in building should be planned by considering the following: 1. The window must be faithful to its original purposes. 2. It should be based on a great design because it is an important part which shows the appearance of building in urban area. 3. As today's buildings are large-scaled and high storied and also have unique characteristics, the development of construction technique and the production of good materials and products should be made. 4. The various general factors of windows should be analyzed and considered in planning windows as well as its design and technical sides.

기질성 뇌장애 환자의 구조적 뇌영상과 비교한 저해상 전자기 단층 촬영 영상

이승환,권구형,박영민,김 현,이강준,정영조 大韓神經精神醫學會 2006 신경정신의학 Vol.45 No.3

Objectives : Patients with organic brain lesion can produce unique slow waves (delta and theta) in the EEG. Basic assumption of this study was that the low resolution electro magnetic tomography (LORETA), an inverse source localization program, can provide functional images representing increased slow wave activity in these patients compared to normal subjects. Methods : The current study was performed by 18 channels digital EEG for 10 patients whose organic deficit have been Visually confirmed by CT or MRI. The source images of slow wave (1-7 Hz) frequency were produced by LORETA-key program. Results : We found that in eight out of ten subjects, LORETA successfully found out the source regions which were very closely matched to their original brain lesions. However in two subjects whose organic brain lesions were too small (<1cm) and located out of gray matter, we failed to find any increased slow wave activity compared with normal control. Conclusion : We can conclude that LORETA could be a useful method to provide functional imaging in patients with gray matter deficits in their brain. Its usefulness and limitations were discussed.

알카리抽出 有機態燐酸과 分別抽出 無機態燐酸에 關한 硏究

李亨求 대구효성가톨릭대학교 1974 연구논문집 Vol.14 No.1

分別抽出法의 無機態燐酸과 冷溫 alkali 抽出法의 有機態燐酸을 fraction pattern을 中心으로 검토한 결과를 요약하면 다음과 같다. 시료 畓土壤은 pH가 5.0, 무기태인산이 103ppm P, 유기태인산이 65ppm P, 가급태인산은 3∼15ppm P수준이였으며 Rs-P가 54%, Fe-P가 19%, Ca-P가 15%, Al-P가 13%정도였다. Ca(H2 32PO4)2 처리했을때 95%가 토양에 吸着되며 그中 54%가 Al-P fraction으로 제일 많았고 Ca-Psms 약 1% 정도였다. 施用燐酸32P 吸着직후에 抽出된 유기태인산은 施用燐酸의 92%정도로 대단히 많았다. 吸着잔류된 시용인산 약 0.4%의 fraction은 처음에 土壤燐酸의 fraction과 매우 흡사했다. 그러나 미리 有機態燐酸을 除去한 後 吸着시킨 시용인산 32 P의 Fraction은 흡착율이 35% 정도로 저하했으며 Fe-P가 상대적으로 증가했고 Rs-P는 현저하게 감소했다. 冷溫 alkali抽出時에 크게 變化되는 fraction은 Rs-P, Al-P였으며 이 때의 organo-metallic complex로서의 phosphate는 유기태, 무기태 두 定量値로 定量되어지는 것 같다. 가급태인산 정량에는 Fe-P, Rs-P fraction을 抽出시킬 수 있는 환원, 알카리조건의 도입이 필요할 것 같다. In general, the fractionation of soil P decisively partitioned into organic and inorganic fraction is very difficult because larger amounts of organic matter are interfered or extracted simultaneously with different P compounds by reagents used in the fractionation under certain pH conditions, e.g. cold and hot alkalic condition (0.5-NaOH) for organic P extraction and inorganic Fe-P fractionnations. The native soil P from 3 kinds of rice field soils (pH 5.0)were determined as follows; 103 ppm P as sum of inorganic fractions, 65 ppm P as organic-P,3-15ppm P as available- P, and 54% for Rs-P, 19% for Fe-P, 15% for Ca-P, 10% for Al-P. But in case of adsorption of supplied P-32 as from of Ca(H232PO4),rete of adsorption was about 96% of whole P-32 treated and Al-P fractions was shown as the most abundant portions, up to about 54%. It was very interested that almost 92% of adsorbed P-32 into soil was extracted by 0.5 N-NaOH extractant through the process fir organic P determination. The organic P free soil which had been prepared by the extraction with alkali before treated with P could only 35% of P-32 applied and, in its inorganic fractions, the amounts of Fe-P was remarkably increased, but, on the contrary, that of Al-P and Rs-P was decreased. In the point of view on the organo-metallic complex for the nature of soil P existed in the milieu of colloidal complex between salt; clay and humus; organic substances, Rs-P and Al-P fractions might be the most greatly interfered during extraction of organic-P with alkali.

건축형태의 미학적 인식과 해석에 관한 연구

이청웅,강형구,임신원 朝鮮大學校 建設技術硏究所 2001 建設技術硏究 Vol.21 No.1

This study is to analyze architectural beauty in regard to architectural form and visual beauty, and to analyze the hypothesis that, when architectural beauty is classified into formative beauty and shape beauty, shape beauty of building mass as a cubic shape, can acquire a unique beautiful duality of the principle figure when it takes shape of the principle figure. The result of this study is as follows. When the observation of the architectural beauty is not limited to the architectural form, but extended to outward and inclusive esthetic category, it is concluded that various artistic element of architecture is not reflected by the architectural shape only, so that a new genre of architectural esthetics is essentially to be created to include various esthetic categories of architectural beauty, and that the architectural beauty focusing at visual, shape and formative theory, has to be reanalyzed as a fundamental and inclusive category. The history of the western architecture shows the meaning of building formation in decorative beauty and shape beauty. The figurative shape eliminates physical elements, and also eliminates decorativeness of painting art and carving-modeling art, so that the building mass is treated as a cubic shape, and a shape beauty of the architectural form is obtained by analyzing figurative shape. The basic figure, a geometric form containing naturalness, historical meanings, and architectural meanings, has its unique beautiful quality showing figurative and geometric shape beauty, and this beautiful quality might be called a perfection that approaches esthetic perfectness. The perfection of the basic figure supports shape beauty of the building mass as a cubic form.

용사코팅용 나노 WC-12Co 피드스톡의 제조

전형우,김주선,박준영,박종구,황순영,이해원 대한금속재료학회 2004 대한금속·재료학회지 Vol.42 No.4

This study investigates the fabrication of WC-12Co feedstock powders with weakly locculated slurries by spray drying under various conditions. The morphological defects and flocculation states according to the amount of additives are evaluated to prepare spherical WC-Co feedstock powders with little morphological defects and homogeneous microstructures. The characteristics of feedstock powders, heat treated between 850-1200℃, are analyzed via SEM, EPMA, and mercury porosimetry. The results showed that with the increase in heat treatment temperature the portion of larger pores around 10 μm increased while, that of smaller pores of 1 μm lessened due to the coalescence of WC particles, forming dense feedstock powders with little defects such as hollow or craters. The feedstock heat treated at 1200℃ showed a porosity of 42.2% and a density of 8.28 g/cm^(3) as well as uniform distribution of pores and Co. (Received January 19, 2004)

비글개에서 분만 후 자궁수복의 연속적 초음파상

손형원, 김홍석, 김형진, 김일화, 이기창, 이청산, 강현구 충북대학교 동물의학연구소 2006 Journal of Biomedical and Translational Research Vol.7 No.2

본문참고

벼멸구의 有機燐系 殺蟲劑 低抗性에 對하여 (Ⅰ) 生物學的 特性 比較

金正和,黃泰龜,李炯來 충북대학교 농업과학기술연구소 1987 農業科學硏究 Vol.5 No.1

This paper was carried out to evaluate the difference in the biological characteristics of the brown planthoppers of the insecticide resistant, susceptible strains and their hybrid progenies. The nymphal period was shortened in the susceptible strain as compared with the resistant strain and the F1. The adult emergence was lower in the resistant strain than in the susceptible strain and the F1, but the F1 was not significantly different as compared with the susceptible strain. The sex ratio was not significantly different between the susceptible and resistant strains, but low in the F1. The average body weight of the female and male adults was higher in the resistant strain than that of the susceptible strain and the F1. The preovipositional period was long in the resistant strain as compared with the susceptible strain, but the F1(S X R) was shortened and the F1(R X S) was not significantly different as compared with the susceptible strain. The average number of eggs laid by a female was not significantly different at the 1% level among the susceptible, resistant strains and the F1(S X R), but remarkably decreased in the F1(R X S). The average longevity of the adult was significantly shortened in the Fl than that of the susceptible and resistant strains, but not significantly different between the susceptible and resistant strains. The feeding activity of the female adult BPH infested for 24 hours was remarkably high in the resistant strain as compared with the susceptible strain and the F1, but the feeding activity of the male adult was variable.

유산균(L.lactis CBT-8)및 발효 추출물의 Helicobacter pylori 억제 능력

진춘조,박형석,이혜운,김성렬,강동구,이준상,이재동,왕준호 건국대학교 의과학연구소 2002 건국의과학학술지 Vol.12 No.-

Helicobacter pylori infection was the cause of chronic gastritis, duodenal ulcer and gastric MALT lymphoma. The eradication rates of H. pylori using antibiotics are around 80%. Lactobacilli have been demonstrated to have in vivo and in vitro inhibitory effects on H. pylori infection. We aimed to evaluate the inhibitory effect of L. lactis CBT-8 and its extract on H. pylori in human stomach. Thirty-five H. pylori-infected volunteers(30-49 yr)were randomized into two groups which were treated with L. lactis CBT-8 and its extract(Group A n=17) or milk containing L. lactis CBT-8(Group B, n=18). They underwent 13C-urea breath tests before and after treatment. The DOB30 of group A(n=14) was decreased 41.0% after treatment(26.0±4.9 before, 15.3±2.1 after treatment)(p<0.05). the DOB30 of group B(n=13) was decreased 22.3% after treatment(22.0±2.2 before, 17.1±1.7 after treatment)(p<0.05). In conclusion, L. lactis CBT-8 was effective in suppressing H. pylori infection in human stomach.