계면활성제의 체인길이에 따른 구형 MCM-41의 합성

이두형,최병열,장원철,서길수,이태진 영남대학교 공업기술연구소 1999 工業技術硏究所論文集 Vol.27 No.1

Mesoporous MCM-41 exibits a hexagonal arrangement of uniform mesopores whose dimensions may be engineered in the range of ∼20Å to greater than 100Å. The MCM-41 typically have high surface areas above 1000m2/g, and then capacities of MCM-41 to accommodate the larger hydrocarbon is still higher than the general molecular sieve. At the present, many surfactants as organic templates have been proposed for various formations of these MCM-41. In this study, we synthesized mesoporous MCM-41 which has a spherically hexagonal structure. Also, the pore size of MCM-41 could be changed by the control of alkyl chain length of surfactants.

우리나라 企業의 賃金制度에 관한 硏究

李丙吉 대구산업정보대학 1990 논문집 Vol.4 No.-

The purpose of this consideration is in finding the method of determining wage level is conceded by both employee and employer, whenever spring comes, industry disputes occur which are due to the view of difference on the raise in wages. These disputes result in less which is fatal to our economy on national dimension. This study suggests the productivity wages system which is seemed to eliminate this loss. Nowadays, raise in wages influences a rise in price. The rise in price causes the raise in wages. This is called as the vicious circle. The productivity wages system means that wages should be determined by productivity improvement.

원심모형시험에 의한 복개터널 복공의 토압특성에 관한 연구

이명욱,박병수,정길수,유남재 江原大學校 産業技術硏究所 2004 産業技術硏究 Vol.24 No.B

This thesis is results of experimental works on the behavior of the cut-and-cover tunnel. Centrifuge model tests were performed to simulate the behavior of the cut-and-cover tunnels having cross sections of national road and subway tunnels. Model experiments were carried out with changing the cut slope and the slope of filling ground surface. Displacements of tunnel lining resulted from artificially accelerated gravitational force up to 40g of covered material used in model tests, were measured during centrifuge model tests. In model tests, Jumunjin Standard Sand with the relative density of 80 % and the zinc plates were used for the covered material and the flexible tunnel lining, respectively. Basic soil property tests were performed to obtain it's the property of Jumumjin Standard Sand. Shear strength parameters of Jumunjin Standard Sand were obtained by performing the triaxial compression tests. Direct shear tests were also carried out to find the mechanical properties of the interface between the lining and the covered material. Compared results model tests estimation with respect to displacements of the lining.

油壓曲管路에서 非定常流의 壓力降下에 관한 硏究

李茂錫,朴吉文,曺秉崎 조선대학교 생산기술연구소 1984 生産技術硏究 Vol.6 No.2

The pressure props of coiled tubes were studied experimentally with hydraulic oil Gulf Harmony 32 for unsteady flows. In addition, friction factors are investigated as function of Curvature ratio(a/R), Reynolds number (Re), Dean number(De), and frequency parameter(α). The three coils were used with curvature ratio (a/R) of O.1, O.04, and O.02, and the total length of coiled tube is 11.3m, respectively. The experimental results are obtained as follows; 1). Pressure drops of straight tubes agree with Hagen-Poiseuille fomula. 2). Ratio of friction factors (fc/fs) is more than 1, and increases with Reynolds number. 3). Friction factor increases as curvature ratio (a/R) and number of coil are higher. 4). The ratio of friction factor (fc/fs) is higher when frequency parameter is of about 2∼3.

생체분해성 고분자의 특성 및 의학적 응용

이진호,최선웅,강길선,노승무,민병무,김용백,김학용 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.1

"Biomaterials" are nonviable materials used in medical devices, intended to interact with biological systems. They should have "biocompativility", which is defined as the ability of materials to perform with an appropriate host response in a specific application. It includes many materials that are often classified as biomaterials. Metals, ceramics, polymers, glasses, carbons, and composite materials are some examples. Among them, biodegradable polymers are discussed in this revies article. Since a biodegradable polymeric implant does not have to be removed surgically once it is no longer needed, biodegradable polymers are of value in short-term applications that require only the temporary presence of a polymeric implant. Main short-term medical applications of biodegradable polymers include the temporary tissue scaffold, the temporary adhesion barrier, the drug delivery device, and the multifunctional implant. In this article, the properties, processing methods, and medical applications of the biodegradable polymers are reviewed.

Indoprofen 및 Indoprofen Lysinate와 Human Serum Albumin의 結合에 관한 硏究

李琬夏,柳柄泰,智雄吉,金東吉 成均館大學校 科學技術硏究所 1984 論文集 Vol.35 No.1

Indoprofen, 4- (1, 3-dihydro-1-oxo-2H-isoindol-2-yl)-α-methylbenzene acetic acid, has many advantages over the other antiinflammatory drugs, such as salicylates, naproxen. Although indoprofen is widely used as an antiinflammatory agent, it shows poor solubility in water. In order to inhance water solubility, indoprofen was made as lysine salt. The purpose of this study was to inspect the binding of the 1-anilinonaphthalene-8-sulfonatc(ANS) to human serum albumin (HSA) and to be to comparative studies on indoprofen lysinate and indoprofen in aspect of the binding to HSA and the number of binding sites was obtained using a fluorescent probe technique. The numbers of binding sites for indoprofen and indoprofen lysinate appear to be 3.35, 3.4, respectively and the association constants were found as follows; HSA-Indoprofen. ; K_b1 = 6.62 × 10 exp(5), K_b2 = 5.44 × 10 exp(4) HSA-Indoprofen lysinate ; K_b1 = 2.32 × 10 exp(5), K_b2 = 5.03 × 10 exp(4)

머리에 방사선 상해를 입은 흰쥐의 운동조절계에 대한 전자현미경적 연구 - Ⅰ. 방사선이 뇌줄무늬체의 신경연접에 미치는 영향에 대한 전자현미경적 연구

이병호,양남길,안의태,고정식 대한해부학회 1991 Anatomy & Cell Biology Vol.24 No.1

김숙자 생애와 가계전승 춤 연구

이병옥,양길순 龍仁大學校 2009 용인대학교 논문집 Vol.27 No.-

The purpose of this study is to examine the life of Sook Ja Kim and the succession of her family tradition, and to clarify the talented performance and shamanistic characters of her dances. Kim's dances can be classified into the ones that have originated from shamanism, the dances of talented performers, and the dances of Gisaeng. Kim learned the shamanistic dance and talented performers' dance from her father and was also taught by Jin Young Cho to develop her shamanistic dance and Gisaeng dance. Most of her dances were taught by men. Kim preserved the shamanistic dance she had learned from her father, Duk Soon Kim, for about 50 years. The origin of Kim's dance is shamanism as her father taught her during her lessons in a cavern that shamanism is the origin and essence of all arts. On top of her artistic talents, Kim was rigorously trained by her father since young and succeeded her mother's shamanistic talents. Therefore, the depth of her world of art deepened as time passed. Kim's most famous dance was Dosalpurichum. There are many other dances, including Gyeonggi Dodanggut that is actively succeeding Ipchum and Bujeong Nori, as well as Seungmu, Taepyeongmu, Hakchum, Geommu, Sinseonmu, Palseonnyeo, and Hanryangmu. In sum, talented performers' dances Kim succeeded are Hanryangmu, Ipchum, Seungmu, and Taepyeongmu, and her Ggaeggeumchum, Jeseokchum, Bujeong Nori, Teobeollimchum, and Dosalpurichum are dances with shamanistic characters. Therefore, Kim's world of dance is rather different from other traditional dances of Gisaeng. Kim's artistic qualities she directly succeeded from her father cherish the historic dances of talented performers of old times. This study has discovered that Kim has put much effort into developing the techniques of talented performers into the true dances to be performed on stage and her devotion to preserve the tradition has greatly contributed to preserving the tradition of Korean dances. Thus, I strongly believe that her dances must be succeeded along with her true spirit as a talented performer and artist.

土地 公槪念의 實相과 虛相

李丙吉 대구산업정보대학 1991 논문집 Vol.5 No.-

As the economy has been developed in our country which is too small in territory compared to overpopulation, the demand for the real estate is rapidly increased and this leads to the sudden rise of the real estate price. On account of the above consequences, as the property income which is generated from the real estate is enhanced highly to the labor income in the weight of gross income, this brings about the disparity on wealth and poverty. Also this leads to the rise in price and loss of labor will. This study suggests items which should be arranged in order to eliminate bad effects generated from the real estate as conclusions.

企業內的 職務要因이 離職에 미치는 影響 硏究 : 中小企業 從業員의 人的特性을 中心으로

李丙吉 대구산업정보대학 1995 논문집 Vol.9 No.1

The high turnover rate of the employees in medium and small business has been obstacles to the increase of productivity. In order to heighten the skills degree of the employees, The decrease of the turnover rate is esteemed to be indispensable. The value of this study is in contributing to the effective turnover administration by analyzing the importance degree of the factors influencing employees turnover in the medium and small business according to the human character.