석탄회 및 석고첨가가 퇴비화에 미치는 영향

유현철,김정섭,곽명화,윤철종,이희인,박승조 동아대학교 환경문제연구소 2001 硏究報告 Vol.24 No.1

Problems of wastes that pigs produce are increasing rapidly in the hog raising industry nowadays. consequently, the generation volume of excreta also is increasing but most of that is not disposed appropriately and exposed in eco-system therefore the disposal of stock excreta is becoming more and more serious. considering the physical and chemical characteristics of livestock excreta, the pollution loading rate - BOD, COD etc. - is very high. as alternative plan, that is, as one method kind of composisting, the utilization of the soil reformation agent will become one solution in managing the upper problems. also, the flyash of 3.7 million tons are producing every year and about 32.2% of that, 1.18 million ton is recycled as concrete, cement, cementassistance, road etc. consequently, the discharged flyash is not abandoned and a plan of recycling is needed acutely. gypsum of 4.16 million tons in 1998 presently was produced and about 57.2% of that, 2.38 million tons was recycled as cement, construction materials. the present stock is 25 million tons. therefore, in this study, because organic materials can be obtained in pig excreta and calciums can be obtained in gypsum, the small amount of elements can be acquired in flyash for the soil reformation agents, mixing the three materials - pig excreta, gypsum, flyash - adequately, investigated technique of making the soil reformation agents and described below in comparrision with the changes of temperature, PH TOC, T-N, TOC/T-N ratio etc.

近代中國에 있어서 西洋의 衝擊

劉明鍾 東亞大學校 大學院 1988 大學院論文集 Vol.13 No.-

After the Opium War, the traditional basis of Chinese ideology began to collapese by the shower of Western influences. Three conspicuous events were as follows: 1.Yen Fu's acceptance of evolutionism 2.Wang Kuo Wei's adoption of Berman idealism 3.Chang Ping lin's ultranationalism and revolutionism

습식 생산방식에 의한 재생 잔골재를 사용한 콘크리트의 중성화 저항성 및 건조수축에 관한 실험적 연구

유명열,김병윤,이세현,심종우 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1(구조계)

The purpose of this study was to provide durability data of concrete using recycled fined aggregate which was produced through a wet production process for making it sure whether it can be put to practical use for concrete. In the experiment, recycled fine aggregate was substitute for natural fine aggregate the rate of 0, 25, 50, 75 and 100% each. The results of the study were as follows; 1 The depth of neutralization was become deeper according to the increase of substitutive ratio of recycled fine aggregate. 2 The performance of length alternation was fallen gradually according to the increase of substitutive ratio of recycled fine aggregate. Hut, it showed the similar durability with concrete using natural fine aggregate fewer than 50% substitution ratio. Bused on the above results, it is concluded that the recycled fine aggregate through the wet production process can be used IS fine aggregate on condition that the substitution ration is under 50%.

밀폐장내 실리카겔의 습도조절 효과 연구

김명남,유혜선 국립중앙박물관 2000 박물관보존과학 Vol.2 No.-

본 실험은 국립박물관을 비롯한 현재 국내외 박물관 및 미술관에서 주로 사용하고 있는 습도조절제(ART-SORB)의 효능을 측정하여 미소환경 조절시 보다 효과적으로 사용할 수 있는 기초자료를 축적하는데 그 목적이 있다. 실험은 외기의 영향을 배제시키고 습도조절제만의 효과를 측정하고자 밀폐조건하에서 수행하였다. 보관장 크기를 고려한 일정량의 ART-SORB 및 카세트(cassette) 형태의 ART-SORB를 투여하여 습도조절 능력을 측정하였다. 실험결과 체적당 정량을 사용한 실험에선 10~17시간 후 목표습도에 도달하였고, 카세트 단위의 과량의 ART-SORB 사용시에는 5~6시간 시간 내에 목표습도에 도달하였으며, 50〜70% RH 범위내에서 습도 조절이 가능함을 확인 할 수 있었다. 또한 ART-SORB는 저습조건에서 습도를 상승시키는데 탁월한 효과가 있었으며, 고습조건에서는 습도조절 능력이 미약했다. 그러므로 ART-SORB는 높은 습도조건이 요구되는 유물 (목기, 칠기류,서화류 등)의 미소환경관리에 보다 효과적인 완충재임을 알 수 있었다. 그러나 본 실험은 밀폐성이 우수한 보관장에서의 실험이므로 실제진열장에 그대로 적용된다고 보기는 어렵다. 따라서 밀폐성이 보장되는 진열장이 우선 마련되어야 습도조절제의 효과가 크게 발휘될 수 있다. The purpose of this study is to evaluate the effect of ART-SORB which is commonly used in museums and galleries at home and abroad including National Museum of Korea, so as to collect useful information to control micro-environment. Experiment was conducted in air-tight condition in order to eval-uate only the effect of ART-SORB excluding any influence from outside factors. A certain amount of ART SORB considering the case size and ART-SORB in cassette type were used to evaluate the humidity con trolling capability. The result showed that target humidity was reached in 10~17 hours in case of using corresponding amount of ART-SORB to the cubic volume and in 5~6 hours in case of excessive use of cassette type ART-SORB. And it also showed that humidity can be controlled in the range of RH 50-70%. In addition, ART-SORB was excellent at raising humidity at low humidity and poor at high humidity. There-fore, ART-SORB turned out to be an effective humidity buffer for controlling micro-environment of such artifacts as wooden ware, lacquer ware and paintings, which require high humidity. However, unfortunately, there are some difficulties in applying this result to real condition, given the fact that this study was conducted under firm air-tight case. Therefore, ART-SORB can be fully effective only in firm air-tight case.

생활습관요인과 자가인식 건강상태의 관련도 포지셔닝

김명선,손미란,전진호,유병철 고신대학교의과대학 2007 고신대학교 의과대학 학술지 Vol.22 No.2

Background : This study purposed to propose the fundamental data to develop the proper health promotion program through observation about the current status, lifestyle behaviors and results of health examinations of public personnel in Busan Metropolitan City. Methods : Subjects were 988 public services (683 male, 305 female) who were employed in City Hall of Busan Metropolitan City. We investigated the relation between lifestyle behaviors and self recognized health status using health examination in 2006. Data analysis on multiple logistic regression and multi-dimensional scaling were done using SPSS win(ver 12.0k) program. Results : The proportion of above 50 years old age are 47.1% in male and 59.7% in female. There are 10.2% in male and 15.8% in female with family history of hypertension, and 8.5% in male and 14.5% in female with family history of diabetes mellitus. There are 37.7% in male and 12.1% in female with obesity, and 10.6% in male and 7.7% in female with abnormal liver function. The disease suspicion rate for male was 1.8%, and 4.6% for female. Risk of hypertension in male was 3.7 times greater than in female and risk of diabetes mellitus in males was 5.0 times greater than in female. By questionnaire 71.8% in male and 78.3% in female had been thought themselves to have disease. Both male and female participants were more likely to think themselves with disease according to disease history of diabetes mellitus, liver dysfunction and hypercholesterolemia. Also aging is interfered that self-recognized health status. Conclusion : Self recognized health status was associated with diabetes mellitus, liver dysfunction, hypercholesterolemia, family history of chronic disease and aging in public employee of Busan Metropolitan City. This association point that there is need for continuous education and effort to modify their life style.

새로운 백금착체인 tetrachloro [bis(2-chloroethyl)ethylenediamine-N,N']platinum(IV)과 cisplatin이 마우스의 면역반응에 미치는 영향

표명윤,유경미,최지선,오현정 숙명여자대학교 약학연구소 1993 약학논문집-숙명여자대학교 Vol.9 No.-

Effects of a new platinum complex, tetrachloro-[bis(2-chloroethyl) ethylenediamine-N,N']platinum(IV)[PtCl₄-2(CEen)] and cisplatin on the immune response were investigated. Male ICR mice were treated at the respective LD50(20% or 60% LD50) of cisplatin and PtCl₄-2(CEen). The results were as following : LD50 of PtCl₄-2(CEen) for male ICR mouse was 122.5mg/kg(i.p.) and higher than cisplatin(16.3mg/kg, i.p.). Body-, spleen-, thymus-, liver-weight, number of WBC and RBC were reduced dependently on the dose and day of administeration of cisplatin and PtCl₄-2(CEen). But these toxicities produced by PtC^-^CEen) appeared to be relatively less and to improve faster than by cisplatin. The titers of hemagglutinin and hemolysin to SRBC in mice received cisplatin and PtCl₄-2(CEen) were decreased significantly and independently on the day of antigen injection. Cisplatin and PtCl₄-2(CEen) stimulated significantly contact hypersensitivity to DNFB when administered prior to sensitization(DNFB), but suppressed slightly when administered after sensitization.

Mycophenolic Acid와 Rapamycin이 흰쥐 사구체 혈관간세포증식과 세포외기질 생성에 미치는 영향

김명수,박제현,하헌주,허규하,서지연,김유선,김혜진,박기일 이화여자대학교 약학연구소 2004 藥學硏究論文集 Vol.- No.14

Background: Excess proliferation and extracellular matrix (ECM) accumulation of mesenchymal cells such as vascular smooth muscle cells (VSMC) and glomerular mesangial cells cause chronic allograft nephropathy showing transplant vascular sclerosis and glomerulosclerosis. Mycophenolic acid (MPA) and rapamycin (RPM) are well known as strong inhibitors of VSMC proliferation, but their effects on the glomerular mesangial cells are not yet clearly understood. This study examined the effects of MPA or RPM on PDGF-induced proliferation and ECM accumulation in rat glomerular mesangial cells. Methods: Mesangial cells isolated from the glomeruli of Sprague-Dawley rats were cultured with DMEM containing 20% fetal bovine serum. Growth arrested and synchronized cells were administered with test drugs (MPA10 nM-10μM, RPM 0.1 nM-1μM) before the addition of PDGF 10 ng/mL. Cell proliferation was assessed by [³H]thymidine incorporation, collagen by [³H]proline incorporation, and fibronectin, ERK, and p38 MAPK by Western blot analysis. Results: PDGF increased mesangial cell proliferation by 4.64-fold. Compared to stimulated control, MPA above 500 nM and RPM above 10nM showed a significant inhibitory effect in a dose-dependent manner. The IC_(50) of MPA and RPM against PDGF-induced mesangial cell proliferation were around 500 nM and 100 nM, respectively. The collagen synthesis was also inhibited by MPA and RPM, but the fibronectin secretion was inhibited by MPA alone. The proliferation of mesangial cell correlated with activation of ERK and. p38 MAPK. MPA, but not RPM, inhibited ERK and p38 MAPK activation. Conclusion: This study demonstrated that MPA and RPM significantly inhibited PDGF-induced proliferation and ECM production in rat glomerular mesangial cells. The inhibitory effects of MPA, but not RPM, are correlated with ERK and p38 MAPK.

Dextromethorphan이 마우스의 자발운동량에 미치는 영향

표명윤,유경미 숙명여자대학교 약학연구소 1999 약학논문집-숙명여자대학교 Vol.16 No.-

The effect of dextromethorphan(Dex) on the spontaneous locomotor activity in mice was investigated. After Dex was intraperitoneally adminstered with the dose of 20, 60 or 80 mg/kg/day once a day for 1 day, 4 days or 7 days in female ICR mice. The spontaneous locomotor activity such as distance traveled(DT) was observed for 3.5 hrs at 15 min intervals. The spontaneous locomotor activity was markedly increased and showed to be biphasic in a dose dependent manner.

건조제를 이용한 벽부형진열장 밀폐도 간접측정

유혜선,김명남,이승은 국립중앙박물관 2001 박물관보존과학 Vol.3 No.-

박물관 진열장의 기밀성은 일반적으로 CO₂ 추적가스를 이용한 밀폐도를 측정함으로서 조사되어 왔지만 진열장 내부에 구멍을 내야하는 점은 사용 전이나 사용 중인 진열장에 대한 밀폐도 측정에 적용하는데 문제점으로 지적되어 왔다. 이에 진열장의 형상을 변화시키지 않고, 진열장의 밀폐도를 간접측정함으로서 사용 전이나 필요에 따라서는 전시중인 진열장에 대한 밀폐도를 측정할 수 있는 대안을 제시하고자 하였다. 밀폐도 간접측정법은 진열장 내부의 온습도 변화와 습도조절제(Art-sorb)의 중량변화를 통해 진열장의 기밀도를 간접적으로 알아보는 방법이다. 실험은 동일장소에 시공된 3개의 벽부형진열장을 대상으로 진열장내 조명을 켜지 않고 Art-sorb와 온습도 수집기를 넣고 12일간 진행하였다. 각 진열장내 온도와 습도 변동분을 주변변동분으로 나눠 변동율로 나타냈으며, 그 결과 온도 변동율에서는 벽부장A(0.67)가 벽부장B(0.69)나 벽부장C(0.79)보다 변동율이 적었으며 습도 변동율에서도 벽부장A(0.12)가 벽부장B(0.19)나 벽부장C(0.72)보다 변동율이 적어 기밀도가 가장 양호함을 알 수 있었다. 또한 CO₂추적가스를 이용한 직접 밀폐도 측정에서의 공기교환율에 대하여 간접 밀폐도 측정에서의 습도변동율을 대입해 보았다. The airtightness of museum cases in museums was measured by using CO₂ tracing gas, but it has been pointed that it has a problem with measuring the airtightness of a museum case which has a hole inside before it is used or while is being used. So studies tried to come up with alternatives which make it possible to measure the airtightness of a museum case before it is used or while it is being used if necessary by indirectly measuring the airtightness of the museum case without changing its form. Indirect measuring is done by measuring the change of Art-sorb weight and the change of temperature and humidity inside the museum case. Experiments were made for 12 days with three builtin wall case installed at the same place without turning on the lights but with Art sorb and the data logger of temperature and humidity put into museum case. The change rate was produced with the change of temperature and humidity inside the museum case divided by that of those around museum case. As a result, the temperature change rate of museum case A(0.67) was lower than that of museum case B(0.69) or museum case C(0.79). The humidity change rate of museum case A(0.12) was lower than that of museum case B(0.19) or museum case C(0.72) showing that its airtightness was the best. Also in the direct airtightness measurement by CO₂ tracing gas, the air exchange rate was compared with the humidity change rate by Art-sorb in the indirect measurement.

바이오피드백 훈련이 만성 두통 환자의 임상 증상 및 스트레스 반응에 미치는 효과

장명선,하양숙,정진상,유범희 大韓神經精神醫學會 2004 신경정신의학 Vol.43 No.6

Objectives : This study aimed to examine the effect of biofeedback treatment on the clinical symptoms and stress responses in chronic headache patients. Methods : We recruited 18 chronic headache patients who were treated with 8 sessions of biofeedback treatment and 18 age and sex-matched control headache patients. All subjects consisted of patients with chronic tension headache and migraine hea-dache. Stress responses were measured using Symptoms of stress (SOS) inventory and all subjects performed Beck depression inventory (BDI), Spielberger state anxiety inventory (STAIS), and visual analogue scale (VAS). Biofeedback physiological vaiiables including frontal and forearm EMG, electrodermal response (EDR) and skin temperature at pre-and post-treatment were also measured in all subjects. Results : Compared with control patients, patients on biofeedback treatment showed significant reduction in scores of STAIS(t=3.705,P<.001),andVAS (t=3.392, p=.001) as well as SOS subscales ; peripheral manifestations (t= 1.788, P=.042), habitual pattems (t=2.008, P=.027), depression (t=2.081, P=.023), anxiety (t= 1.990, P=.028), and total score (t=2.045, p=.025). There was a significant increase of skin temperature (t= -1.835, P=.038) only in the biofeedback treatment group. Conclusion : These results suggest that biofeedback treatment may be effective in relieving chronic headache by reducing psychological and physiological stress responses.