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울산 울주지역 소규모 수도시설 지하수의 수리지화학적 특성 연구
김동수,김문수,조성진,김익현,이헌민,황종연,박선화,조훈제,김태승,김현구,Kim, Dongsoo,Kim, MoonSu,Jo, Sungjin,Kim, Ikhyun,Lee, Heonmin,Hwang, Jongyoen,Park, Sunhwa,Jo, Hunje,Kim, Taeseung,Kim, Hyunkoo 한국지하수토양환경학회 2017 지하수토양환경 Vol.22 No.5
The hydrogeochemical characteristics of groundwater in the small waterworks are examined with 81 groundwater samples in Ulju region, Ulsan. The pH ranged in 6.3-8.2 and did not exceed the drinking water standards. Electrical conductivity ranged from $50{\mu}S/cm$ to $1,719{\mu}S/cm$. It indicated that the electrical conductivities in groundwaters at the study area are relatively low, compared with other groundwaters in Ulsan area. The calcium concentrations in groundwaters ranged from 3.55 to 113.01 mg/L, and sodium concentrations ranged from 2.02 to 65.50 mg/L. Nitrate concentrations ranged from 0 to 100.56 mg/L and potassium concentrations ranged from N.D (not detected) to 2.50 mg/L. Major cations and anions were mainly derived from the water-rock interaction involving feldspar, gypsum and calcite. The groundwaters were mainly the $Ca-(Na)-HCO_3$ type, classified as the early stage of groundwater evolutions. The correlation between electrical conductivities and Ca concentrations in groundwaters was relatively high ($R^2=0.74$). In the correlations between ions, the correlation coefficient between $SO_4$ and Ca was 0.65 and between Mg and $HCO_3$ was 0.65.
음곡(KI10) 금앵자 약침이 난소적출 생쥐의 골다공증에 미치는 영향
김동수,김정호,김영일,Kim, Dong-Soo,Kim, Jeoung-Ho,Kim, Young-Il 대한약침학회 2009 Journal of pharmacopuncture Vol.12 No.4
Objective & Methods : The purpose of this study was to observe the effects of herbal-acupuncture with Rosae Laevigatae Fructus extact(RLF-HA) at KI10(Umgok) on osteoporosis in ovariectomized( OVX) ddy mice. We carried out several experimental items to analyze the changes in body weight, uterine weight, uterus index, tibial length, the ash bone weight, tibial BMD, serum ALP, serum osteocalcin, serum Ca, and the levels of Ca, P, Ca/P ratio in tibia, and we performed histological and histomorphological analysis as well. Results : 1. Herbal-acupuncture with Rosae Laevigatae Fructus at KI10(Umgok) and saline injection at KI10(Umgok) significantly inhibited the reduction of tibial calcium level in ovariectomized mice. 2. Herbal-acupuncture with Rosae Laevigatae Fructus at KI10(Umgok) significantly inhibited the increase of tibial osteoclast cells in ovariectomized mice. 3. Herbal-acupuncture with Rosae Laevigatae Fructus at KI10(Umgok) significantly inhibited the reduction of tibial trabecular bone thickness(TBT) in ovariectomized mice. 4. Herbal-acupuncture with Rosae Laevigatae Fructus at KI10(Umgok) significantly inhibited the overgrowth of tibial growth plate length(GPL) in ovariectomized mice. Conclusion : These results suggested that herbal-acupuncture with Rosae Laevigatae Fructus at KI10(Umgok) has a therapeutic effect on osteoporosis, and to be put to practical use in the future osteoporosis clinic.
김동수,김광일,김흥락,정우철,남효덕,Kim, Dong-Soo,Kim, Kwang-Il,Kim, Heung-Rak,Jeong, Woo-Cheol,Nam, Hyo-Duk 한국전기전자재료학회 2005 전기전자재료학회논문지 Vol.18 No.11
In this study, a step-down piezoelectric transformer was fabricated to utilize as an adapter for charging batteries of mobile electronic appliances. The ceramic part of the transformer is $Pb[(Mn_{1/3}Sb_{2/3})_{_0.05}Zr_{0.475}Ti_{0.475}]O_3$ with mechanical quality factor of 1600, electromechanical coupling coefficient $59\%$, and piezoelectric constant $d_{33}$ 1300, which can be utilized as a piezoelectric transformer. A simply fabricated disk-typed test pattern of diameter 28 mm and thickness 2 mm was used to characterize output voltage, step-down ratio as a function of electrode area with the input remained constant, and power, efficiency as a function of input voltage, and temperature-dependent electric characteristics were evaluated. The sample APT1 showed the best properties. The highest admittance, effective electromechanical coupling coefficient and an appropriate mechanical quality factor were obtained at the sample with the input/output area ratio of 1:1.5 at the common electrode, and the condition of 20 $V_{rms}$, $50\;\Omega$ made the maximum efficiency of $95\%$. The temperature was increased by 14.7'E as the input voltage was increased for $50\;V_{rms},\;50\;\Omega$.
혼합 인산염의 첨가가 어류연육의 기능적 성질에 미치는 영향
김동수,김영명,김일환,이병준,Kim, Dong-Soo,Kim, Young-Myung,Kim, Il-Hwan,Lee, Byung-Joon 한국식품과학회 1985 한국식품과학회지 Vol.17 No.4
인산염의 첨가가 조기 및 갈치연육의 보수력 및 단백질의 용출성에 미치는 영향과 가열처리 후에 조기육을 원료로 가공한 어묵의 texture에 미치는 영향을 조사하기 위하여 인산염을 첨가하지 않은 대조구와 4종의 시판 복합 인산염을 첨가수준별로 사용 했을때의 기능적 성질을 분석 검토 하였다. 연육의 보수력 및 염용성 단백질량은 조기연육에는 인산염B(sodium poly-phosphate 50%. sodium Poly-Phosphate20%, sodium tetra meta-Phosphate 20%, sodium acid pyro-phosphates%, sodium ultra meta-phosphate 5%)를 갈치연육에는 인산염C(sodium poly-phosphate40%, sodium pyro-phosphate 30%, potassium pyro-phosphate 15%, sodium tetra meta-phosphate10%, sodium hexa meta-phosphates%)를 각각 0.4% 첨가한 경우가 가장효과적 이였고 그때의 염용성 단백질의 용출량은 조기연육이 954mg%, 갈치연육이 686mg%였다. 조기육을 원료로 하여 가공한 어묵의 적정가열 조건은 $85^{\circ}C$에서 45분간 가열한 것이 조직감이 양호 하였다. 한편 $121^{\circ}C$에서 10분간 가열한 경우는 C인산염이 다른 인산염에 비하여 어육 단백질의 열 안정성이 높은 것으로 나타났다. Effects of four kinds of phosphate complex on the water holding capacity (W.H.C) and protein solubility of yellow-corvenia (Pseudosciance manchurica) and hair tail (Tichurus lepturus) meat paste were investigated. The formulations of four kinds of phosphate complex employed to this experiment were made by mixing several phosphates such as sodium polyphosphate, sodium pyro-phosphate, sodium acid pyro-phosphate, potassium pyro-phosphate, sodium tetra meta-phosphate, sodium ultra meta-phosphate and sodium hexa meta-phosphate, and monoglyceride at different mixture ratios. Among the four kinds of phosphate complex, phosphate B complex which was formulated by mixing sodium poly-phosphate 50%, sodium pyrophosphate 20%, sodium tetra meta-phosphate 20%, sodium acid pyrophosphate 5% and sodium ultra meta-phosphate 5% was most effective on enhancing the W.H.C and protein solubility of yellow corvenia meat paste, and in case of hair tail meat paste, phosphate C complex which was formulated by mining sodium poly-phosphate 40%, sodium pyro-phosphate 30%, potassium pyro-phosphate 15%, sodium tetra meta-phosphate 10%, and sodium hexa meta-phosphate 5% was more effective than other phosphate complex, and their optimum addition level was 0.4% respectively in weight of fish meat paste. Texture characteristics such as hardness, cohesiveness, and springiness value of Kamaboko (fish meat paste product) were evaluated as best when 0.3% of phosphate B complex was added. The optimum cooking condition of Kamaboko to get good texture was heating for 45 mimutes at $85^{\circ}C$.
김동수,정혜경,최진희,소형석,김해정,고창민,김태용,정문용,Kim, Dong Su,Chung, Hae Gyung,Choi, Jin Hee,So, Hyung Seok,Kim, Hae Jung,Go, Chang Min,Kim, Tae Yong,Chung, Moon Yong 대한불안의학회 2012 대한불안의학회지 Vol.8 No.2
Objective : In posttraumatic stress disorder (PTSD), it is essential to evaluate the severity of trauma with a reliable instrument. The combat exposure scale (CES) is one of the most widely used measures for the combat-related trauma. The present study was conducted to test the reliability and validity of the Korean version of CES (CES-K). Methods : One hundred and forty-five male Korean veterans of the Vietnam War participated in this study. CES-K, the structured clinical interview for DSM-III-R (SCID), clinician administered PTSD scale (CAPS), and the Korean version life events checklist (LEC-K) were administered. Results : Cronbach's coefficient of CES-K was .85, and the test-retest reliability was .94. The mean [standard deviation (SD)] scores of CES-K were 20.4 (9.0) in the PTSD group and 12.0 (8.6) in the non-PTSD group (p<.001). CES-K showed a significant correlation with LEC-K (r=.31, p<.001) and CAPS (r=.52, p<.001). Only one factor was revealed by the factor analysis. Conclusion : CES-K showed good reliability and validity for assessing the severity of combat exposure. Further, it demonstrated comparable psychometric properties to the previous study. It is expected that CES-K will be a useful tool for evaluating the severity of combat exposure in Korea.
김동수,임병묵,현은혜,이은경,Kim, Dongsu,Lim, Byungmook,Hyun, Eunhye,Lee, Eunkyung 대한예방한의학회 2019 대한예방한의학회지 Vol.23 No.2
Objectives : This study aimed to analyze price variance by year, region and company of raw herbal medicines to draw payment system for herbal medicine insurances in the National Health Insurance. Methods : To analyse price variance, we used 2015-2017 data of 'Quality test results of imported herbal medicines' provided by Korea Pharmaceutical Traders Association and 'Price data of 56 raw herbal medicines' that was surveyed by the Association of Korean Medicine. We analysed gap of highest price and lowest price those were compared with average price and coefficient of variation(CV) of prices by year, region and company of raw herbal medicines. Results : In analysing 3 years data, the highest price was 23.2% higher, and the lowest price was 19.1% lower than the average price. As of 2018, the average price of domestic produced herbal medicines was 1,8 times higher than that of imported herbal medicines. By companies, the highest price was 117.5% higher, and the lowest price was 57.3% lower than the average price. Conclusions : The price of herbal medicines varied by production year, region and company. This results suggest that comprehensive payment model needs to be considered in modeling the health insurance coverage for herbal medicine decoctions.