유화제 첨가량이 MMA/BA 합성 라텍스 폴리머 시멘트 모르타르의 특성에 미치는 영향

형원길,조영철,장성주,김완기,소양섭 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2

The purpose of this study is to clarify the effect of the emulsifier ratio on properties of the polymer modified mortar using methylmethacrylate-buthyl acrylate(MMA/BA) latexes, and to obtain basic data necessary to develope appropriate latexes for cement modifiers. Polymer modified mortars using MMA/BA latexes are prepared with various monomer ratios, and tested for air content, flexural and compressive strengths. From the test results. we knew that the water-cement ratio is decreased with an increase in the amount of emulsifier. And the air content is increase with an increase in the polymer cement ratios. In general, the superior compressive and flexural strength of polymer-modified mortars using MMIA/GA latexes is obtained ant a bound MMA content of 80 percent and a emulsifier ratio of 6 percent.

三鍾 黃連類의 氣管支 平骨筋 弛緩效果에 關한 硏究

서영철,임성우,신길조,이원철 한국한의학연구원 1996 한국한의학연구원논문집 Vol.2 No.1

This study was carried out to investigate the tracheal muscle relaxation of water extracts of three kinds of Coptis thizoma and also compare of Coptis rhizoma, in isolated rat tracheal smooth muscle. As a result, Coptis chinensis showed significant tracheal muscle relaxation on KCI-induced contraction and more markedly on carbachol-induced contraction in close-dependent manner. Coptis japonica exhibited also tracheal muscle relaxation on both contraction with slightly weaker activities than those of Coptis chinensis. The activities of the root hair of Coptis chinensis were the most weakest in three thizomas. Berberine and palmatine had strong tracheal muscle relazation, especially, on carbachol-induced contraction, however, their activities on KCI-induced contraction were weaker than that of Coptis chinensis. The inhibitory effects of three kinds of Coptis rhizoma on the contraction by KCI and carbachol were inbestigated to explain the process of their tracheal muscle relaxation. All rhizomas inhibited the contraction by both agents, among them, Coptis japonica showed the most significant effect, so indicating the tracheal muscle relaxation of Coptis rhizoma may be concerned with the blocking of muscarine receptor and Ca²+ channel.

주류산업의 경쟁력 강화방안

전영길,남기철 한경대학교 2004 論文集 Vol.26 No.1

Korean alcoholic beverage industry has grown to the retail sale of 10 trillion won in 2001. According the 2001 association of Korean alcoholic beverage industry, beer industry took 63.1% of market share, soju 28.8%, takju 5.6% and whisky 0.9% in cubic content. This study is based on the opinion that reasonable improvements need to made in anti-competitive government regulations and an unfair competition distribution in order to strengthen the competitiveness of the alcoholic beverage industry. For the ultimate goal of enhancing objectivity and rationality of competition promotion measures, this study describe the types of government regulations and distribution. The distribution of alcoholic beverage is so complicated and illegally traded alcoholic beverage. Distributors of alcoholic beverage are so small and weak. So distributors of alcoholic beverage have to enhance improvement competitive power. First, they need a organization management and personal as a massive organization and to force the organization management and personal management to systematize. Second, it prevent a illegal distribution to specialize and distinguish in production and business province. The methods of improvement can be suggested for liquor marketing in our country. First, being a large-size merchandising firm and specialization of marketing should be realized. Second, the terms of the present system of license should be reinforced fairly. Third, the regulations of punishment against unlicensed selling agencies and tax evasion agencies should be reinforced and offenders should be regulated strictly. Finally, considering the goods' characteristics that liquor has, the protective movement of consumers should be developed positively.

자연파열된 신혈관근지방종 2례

이길호,선판일,성영훈,최영석,조철희,김철성,장대수 朝鮮大學校 附設 醫學硏究所 1993 The Medical Journal of Chosun University Vol.18 No.1

Renal angiomyolipoma is an uncommon benign tumor of the kidney that consists of smooth muscle, blood vessels and mature adipose tissues. The most common benign renal tumor associated with spontaneous non-traumatic perirenal hemorrhage is angiomyolipoma, because of high vascularity. The ultrasonographic and computed tomographic images are sufficiently characteristic to permit accurate preoperative diagnosis. We report 2 cases of renal angiomyolipoma with spontaneous perirenal hemorrhage which were managed with nephrectomy.

自生 山菜類의 開發에 관한 硏究

申永澈,金在佶,申貞和 충북대학교 농업과학기술연구소 1992 農業科學硏究 Vol.10 No.1

In order to use as vegetable, studies on valuable wild plants-Pimpinella brachycarpa, Cryptotaenia japonica., Synurus deltoids., Solidago virga-aurea var. gigantean., Hemerocallis fulva. Were carried out by field observation and cultivation. The result were obtained as follow : 1. Pimpinella brachycarpa, Cryptotaenia japonica, Solidago virga-aurea var. gigantea were distributed at the higher altitude of 600M, but Synurus deltoids, Hemerocallis fulva were distributed under 500M. 2. Pimpinella brachycarpa, Cryptotaenia japonica, Solidago virga-aurea vat. Gigantean, Hemerocallis fulva except Synurus deltoids grew well on fertile soil in habitat. 3. The germination of Hemerocallis fulva were promoted at 25℃ under dark condition with Ethrel, whereas Synurus deltoides were promoted at 20℃ under dark condition with IBA treatment. 4. Te transplant seedlings of 5 plants, shading was necessary. Low light intensity under 5000Lux is recommended for low rate of bolting and for softening of tissue. 5. All 5 plants grew vigorously toward the end of July. 6. Plants would be harvested after 3 years with seed germination, but it would be desirable to transplant in order to reduce cultivation time. 7. It is desired that 5 plants should be subjected to suppressing or forcing cultivation.

사설경호업체 종사자의 직무스트레스와 직무만족과의 관계

이상철,함주일,안길영 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.3

The purpose of this study was to identify the relationship between job stress and job satisfaction of employees in private body-guard company. In order to achieve this purpose, the instrument for data collection was a questionnaire in which consisted of questions regarding job stress and job satisfaction. The questionnaire's validity was evaluated by a panel of experts, and its reliability was evaluated by computing the Cronbach alpha values. Since the values ranged from .664 to .816, the questionnaire was deemed to be highly reliable. 220 subjects was selected from several private body-guard companies in Seoul, 2003. Among these selected subjects, 200(90%) responded, and data analyses consisted of employing descriptive statistics, one-way ANOVA, standard multiple regression using SPSS/PC version 10.0. The following results were obtained: First, job stress factors differ statistically and partially according to socio-demographic variables of employees in private body-guard company. Second, job satisfaction factors differ statistically and partially according to socio-demographic variables of employees in private body-guard company. Third, job stress statistically and significantly influenced job satisfaction.

출생후 흰쥐 구치의 발육에 따른 치수의 신경지배 발달에 관한 면역조직화학적 연구

김영진,남순현,배용철,김동길,김현정 大韓小兒齒科學會 1996 大韓小兒齒科學會誌 Vol.23 No.4

The purpose of this study was to investigate the postnatal development of pulpal innervation with the tooth development and eruption process in developing rat mandibular molars (postnatal 1, 5, 10, 15, 20, 25, 35day-old and adult rats). Immunohistochemical method was carried out for the detection of nerve fibers, using the antibody against calcitonin gene-related peptide(CGRP). The results were as follows: The feature of CGRP-IR nerve fibers were shown in a bead-like appearance. The time of nerve entering into the dental papilla of tooth follicle began at the occured advanced dentinogenesis. The development of Raschkow plexus began at the formative stage of the roots and was accelerated at the stage of the crown emerged into the oral cavity. The number of nerve fibers entering the odontoblastic layer increased with the tooth eruption and mastication. The development of innervation was shown to be related with the stage of the development of individual teeth rather than the chronological age of the rat.

마우스에 있어서 Olive Oil의 食餌가 免疫反應에 미치는 影響

안영근,박병철,김정훈,이상근,박영길 한국환경독성학회 1991 환경독성보건학회지 Vol.6 No.1

This study was performed to investigate the effect of olive oil diet on the immune response in ICR male mice. Experimental diets of 4 groups were fed ad libitum to the ICR male mice for 27 days. The results of this study were summarized as followings: 1. 10% Olive oil diet group as compared with the control diet group significantly decreased liver weight rate but significantly increased hemagglutination titer (HA), Arthus reaction, delayed type hypersensitivity reaction (DTH), rosette forming cell (RFC), and phagocyte activity. 2. 20% Olive oil diet group as compared with the control diet group significantly increased body weight gain, liver weight rate, and HA but significantly decreased Arthus reaction, DTH, RFC, phagocyte activity, and peripheral circulating white blood cell (WBC). 3. 30% Olive oil diet group as compared with the control diet group significantly increased liver weight rate but significantly decreased body weight gain, Arthus reaction, plaque forming cell (PFC), DTH, RFC, phagocyte activity, and WBC. The results showed that the increase of olive oil doses significantly decreased humoral and cellular immune responses, phagocyte activity, and WBC.

신경베체트병에 의한 신경인성방광 : 증례보고

이길용,임건한,소영석,노준,김철성,장대수 朝鮮大學校 附設 醫學硏究所 2002 The Medical Journal of Chosun University Vol.27 No.2

The co-existence of mouth and genital ulceration with iritis was first defined as a syndrome by Behcet. It is now known to be a chronic and relapsing systemic disease, which involves many other systems. Neurogenic bladder dysfunction due to Behcet's disease, however, is extremely rare, and only a limited number of cases have been reported in the international literature. Voiding disfunction in Behcet's disease can be due to neurological or direct bladder involvement and can be related to bladder and sphmctehc components in both phases of micturition. We report on a 35-year old patient with a neuropathic bladder secondary to Behcet's disease.

慶南 蔚山 無去洞 玉峴遺蹟의 舊石器時代 遺物 檢討

朴英哲,李相吉,徐□男 嶺南考古學會 2000 嶺南考古學 Vol.- No.26