고로슬래그를 활용한 바탕콘크리트 내구성 향상에 대한 연구

장용 ( Jang¸ Yong ),강예진 ( Kang¸ Ye-jin ),이동운 ( Lee¸ Dong-oun ),김대건 ( Kim¸ Dae-geon ) 한국건축시공학회 2021 한국건축시공학회 학술발표대회 논문집 Vol.21 No.2

When the final finish of a building is designed with base concrete, complex deterioration occurs due to the harsh environment such as shrinkage and expansion due to external temperature changes, freezing and thawing, and the use of calcium chloride due to snow accumulation. Therefore, the pozzolanic reaction mechanism of blast furnace slag is clearly identified, and the causal relationship between the material properties and performance of the blast furnace slag is identified to present guidelines for mixing high-durability concrete.

1. A Pathologic Observation on Spontaneous Plasma Cell Tumor in the Mice

Kim Dae_Yong 한국실험동물학회 1987 한국실험동물학회 학술발표대회 논문집 Vol.1987 No.-

자생 차(Camellia sinensis L.)의 육묘 방법에 관한 연구

이용호,이종성,강남대,송근우,강동주,고영옥,정대수 동아대학교 2001 大學院論文集 Vol.26 No.-

These experiments were conducted to studies on methods raising seedling in Native Tea Trees(Camellia sinensis L.). this experiment was conducted for 2years from 1999 to 2000 in Kyeongnam Provincial Rural Development Administration(R.D.A) The results were summarized as follows: 1. Germination percentage, mature seedling percentage, tiller, leaf number, leaf length and dry weight become higher Cup Pot Φ16cm treatment plot, plant height and leaf area was high some Net Pot Φ15cm treatment plot. 2. The growth of underground and aboveground show a good result all Cup Pot Φ16cm treatment plot. 3. The T/R rate of Cup Pot Φ16cm treatment plot were found 100% and Cup Pot Φ15cm treatment plot were found 114%. 4. The economic gains become higher Cup Pot Φ16cm.

부부창업가의 관계기반요인이 인지된 성공에 미치는 영향: 재무성과의 매개를 중심으로

정대용(Chung, Dae-Yong),김교영(Kim, Kyo-Young) 한국경영교육학회 2021 경영교육연구 Vol.36 No.1

[연구목적] 본 연구는 갈수록 숫자와 중요성이 증가하고 있는 부부창업 기업을 대상으로 원인변수인 관계중심요인과 매개변수인 재무성과, 그리고 종속변수인 인지된 성공이 어떤 인과관계를 갖는지 살핀다. 또한 현실적 어려움에 직면해 있는 부부창업가들이 성공을 향해 가기 위한 실무적 시사점을 제공하고, 이를 지원하기 위한 정책적 시사점을 찾고자 한 실증적 연구이다. [연구방법] 제한된 국내․외 관련 선행연구들을 검토하여 이루어진 이론적 논의를 토대로 모두 10개의 가설을 한 연구모형을 수립하였다. 이의 검증을 위해 국내에서 부부가 함께 기업을 경영하고 있는 부부창업가 98쌍인 196명의 응답을 최종 활용하여, Baron and Kenny의 매개회귀분석 및 Process macro를 통해 가설검증을 시도하였다. [연구결과] 관계기반요인의 구성요소 세 개 중의 하나인 개방된 의사소통은 인지된 성공에 직접 영향도 미치고, 재무성과를 통해 간접적으로도 영향을 미치는 것으로 나타나서 부분매개의 영향을 미치는 것으로 나타났다. 또한 표본 수집을 증가시키기 어려운 현실을 감안하고 재무성과의 매개효과를 보다 세밀하게 검정하기 위하여 PROCESS macro를 이용하여 매개효과를 재차 검정하였다. 개방적 의사소통과 인지된 성공관계에서 재무성과를 매개변수로 투입된 경우는 재무성과의 매개효과가 나타났다. 반면에 업무가족균형과 사업전념 모두는 인지된 성공에 미치는 영향에서 재무성과의 매개효과가 전혀 없음을 알 수 있었다. [연구의 시사점] 본 연구는 부부창업가를 대상으로 좀 더 구체적이며 심화된 이론적 선행연구 논의에 따른 실증적 탐색 분석결과를 제공하였다는 점, 현실적 어려움에 직면한 부부창업가들에게 실무적 시사점을 제공했다는 점, 학제적 연구의 교육적 및 정책적 지원의 이론적 토대를 제공했다는 점에서 의의가 있다고 하겠다. [Purpose] The purpose of this study is to examine the relationship between relation-based factors, financial performance and perceived success by targeting co-preneur’s companies which are increasing in number and importance. To achieve success of co-preneurs facing real difficulties empirical study accomplished providing practical implications in future and finding policy implications for supporting them. [Methodology] A research model based on 10 hypotheses was established based on theoretical discussions made by reviewing limited domestic and foreign related prior studies. To verify this, the responses of 196(98 couples) of married couples who run a company together in Korea, were finally used to test hypotheses through mediated regression analysis of Baron and Kenny and Process macro. [Findings] When financial performance was used as a parameter in open communication and perceived success relationship, the mediating effect of financial performance appeared. On the other hand, it was found that both work-family balance and business commitment had no mediating effect of financial performance in the impact on perceived success. Open communication had a direct effect on perceived success. To test the mediating effect, the mediating effect was reconfirmed using the PROCESS macro. [Implications] This study provided empirical search and analysis results based on more specific and in-depth theoretical previous research discussions for Co-preneurs, provided practical implications for couple entrepreneurs facing real difficulties, and interdisciplinary research. It is significant in that it provided the theoretical basis for educational and policy support.

고랭지 밭 유역의 융설에 의한 수질특성

최용훈 ( Yong Hun Choi ),원철희 ( Chul Hee Won ),박운지 ( Woon Ji Park ),신민환 ( Min Hwan Shin ),신재영 ( Jea Young Shin ),이수인 ( Su In Lee ),최중대 ( Joong Dae Choi ) 한국물환경학회 ( 구 한국수질보전학회 ) 2012 한국물환경학회지 Vol.28 No.3

In this study, Song-Cheon river Basin located at Dae-kwan-lyong Meyn in Kang-Won Province was monitored to analyze characteristics of non-point source pollution during the snowmelt period. The characteristics of NPS pollution such as runoff, change in water quality and pollutant loads by snowmelt were investigated from 23th February 2010 to 27th April 2010. The results showed that The climate change effects flow, turbidity and concentration of SS and COD with showing similar trend of fluctuation. Daily pollutant loads per unit area were SS 74.43 kg/ha/day, COD 1.25 kg/ha/day, BOD 0.21 kg/ha/day, TN 0.717 kg/ha/day, TP 0.141 kg/ha/day and the flow weight mean concentration has been SS 985.97 mg/L, COD 16.28 mg/L, BOD 2.67 mg/L, TN 9.302 mg/L, TP 1.834 mg/L, respectively. The flow and pollutant loads both of SS and of COD significantly increased during the snowmelt period. Because structurally loosen soil by freezing and thawing deteriorates water quality, research and management measures will be needed.

요중 비소농도와 N-acetyl-β-D-glucosaminidase 농도와의 관련성 평가

이용찬,임동혁,엄상용,김용대,김헌 충북대학교 의과대학 충북대학교 의학연구소 2010 忠北醫大學術誌 Vol.20 No.1

Purposes: This study was performed to evaluate the possibility of impairment of renal tubular function by exposure to inorganic arsenic of low concentration. Materials and methods: Study subjects were 867 individuals (365 men and 502 women) who resided around abandoned mine areas in Chungbuk Province, Republic of Korea. Information about the life style, drinking water type, seafood intake, and mine working history was gathered, and urinary arsenic concentration and N-acetyl-β-d-glucosaminidase (NAG) activity were measured. The correlation between arsenic concentration and urinary NAG activity was tested in groups classified according to urinary NAG activity and seafood consumption prior to urine sampling. Results: No statistically significant difference in urinary arsenic concentrations was observed between different gender and age groups. The participants those who ate seafood within three days before the urinary sample showed a higher mean urinary arsenic concentration than those who did not. In a correlation analysis between natural logarithm of urinary arsenic concentrations and that of urinary NAG activities, no statistical significance was found in a total sample as well as within a gender group. In a group with the urinary arsenic concentrations higher than the geometric mean and the urinary NAG activities higher the geometric mean, the correlation coefficient between two variables was 0.182 and significant. (p-value<0.05) Conclusions: It is suggested that renal tubular damage could be induced by non-occupational exposure to low level inorganic arsenic. 연구목적 : 본 연구는 폐금속광산 주변지역 주민들을 대상으로, 저농도 비소노출에 의하여 신세뇨관 기능이상이 유발될 수 있는지를 평가하는 것을 목적으로 시행하였다. 대상 및 방법 : 충청북도에 소재하고 있는 폐금속광산의 주변에 거주하는 주민 867명을 대상으로 직접 면접조사를 실시하였다. 대상자의 소변을 채취하여 요중 비소농도와 요중 N-acetyl-β-D-glucosaminidase (NAG) 활성을 측정하였고, 조사대상자를 역학적 변수에 따라 구분하여 두 변수 사이의 상관관계를 분석하였다. 결과 : 소변시료를 채취하기전 3일 이내에 해산물을 섭취한 사람들의 요중 비소농도는 그 기간동안 해산물을 섭취하지 않은 사람들의 농도에 비하여 유의하게 높았다. 조사 대상자들의 요중 NAG 농도의 평균값은 남녀차이가 없었으나, 65세 미만 대상자와, 표본을 채취하기 전 3일 이내에 해산물을 섭취한 사람들의 요중 NAG 활성도의 평균값은 그렇지 않은 사람들에 비하여 유의하게 낮았다. 요중 비소농도가 기하평균 이상이고, 요중 NAG 활성이 기하평균 이상인 군에서 두 변수의 상관관계가 0.182 로 유의하였다. 결론 : 정상범위의 비소 노출이라도 요중 비소농도가 8.28 μg/g creatinine을 초과하는 경우에는 미세한 신장손상을 유발할 가능성이 있으며, 해산물을 섭취함으로써 체내에 흡수되는 비소는 이러한 신독성이 거의 없다.

무증상 당뇨환자의 T 반사 변화

안규환,조용진,김상화,사은희,임용빈,김대성,정대수,박규현 대한신경과학회 1999 대한신경과학회지 Vol.17 No.5

개별화된 긍정적 행동지원이 자폐성장애학생의 공격행동과 수업참여행동에 미치는 영향

김대용ㆍ백은희(Kim Dae yongㆍPaik Eun hee) 한국특수교육학회 2016 특수교육학연구 Vol.50 No.4

소적정원산(消積正元算)으로 호전된 적증(積證)환자 1례 보고

허진일,조동희,김동우,임희용,오중한,김대준,변준석,최빈혜,Hur, Jin-Il,Cho, Dong-Hee,Kim, Dong-Woo,Lim, Hee-Yong,Oh, Jung-Han,Kim, Dae-Jun,Byun, Joon-Seok,Choi, Bin-Hye 대한한방내과학회 2005 大韓韓方內科學會誌 Vol.26 No.2

This study was designed to evaluate the effects of the oriental medicine(Sojeockjeongwonsan) on a Jeock-Jeung patient. The clinical data was analyzed on a patient with Jeock-Jeung, deemed due to Gangiulgyul(肝氣鬱結) and Junggiheoyak(正氣虛弱). The patient’s main symptoms were abdominal pain and abdominal mass. The patient was admitted to Dae-Gu Hanny University Dae-Gu Oriental Medicine Hospital. Clinical symptoms, including abdominal pain, abdominal mass and general condition, improved after treatment. This study suggests that Sojeockjeongwonsan is significantly effective in treatment of a Jeock-Jeung.

위암환자의 복강내에 투여한 Mitomycin C-Carbon Particle의 Mitomycin 용출에 관한 연구

노승무,조영훈,정경수,오정연,김진향,양준묵,강대영,송규상,조준식,최선웅,이진호,민병무,김용백,김창식,박근성,인현빈,정현용,김학용 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.1

Locoregional recurrence is the most common type of recurrence in surgical operation of gastric adenocarcinoma, and peritoneal dissemination is one of the most difficult problems in advanced gastric adenocarcinoma treatment. Because the peritoneal cavity is the most common site of the first recurrence after gastric cancer resection, intraperitoneal chemotherpy seems a logical choice for cancer chemotherapy. The Mitomycin C(MMC) adsorbed by the activated charcoal particles(CH) is relatively released when the drug concentration surrounding the carbon particles becomes low in the peritoneum of the peritoneal cavity. For the intraperitoneal chemotherapy on the advanced gastric adenocarcnoma, mitomycin C adsorbed on activated carbon particles was administered in the peritoneal cavity just before abdominal wall closure. The closed drainage tubes were inserted in the peritoneal cavity and clamped for tuo hours after completion of operation. MMC concentrations were serially measured in peritoneal fluid, plasma and urine at 2hour, 48 hour, 72 hour and 168 hour following its administration in order to study the efficacy of the MMC-CH as a drug delivery system. There were minimal toxicities in born marrow, liver, and gastrointestinal system after intraperitoneal MMC-CH administration. The data of this study suggested that MMC-CH may have a somewhat more beneficial effect than surgery alone when administered in optimal dose and schedules, but the MMC concentration of the peritoneal fluid was not sufficient to eradicate remnant cancer cells, and effective duration of maintenance was only below 24 hours in the peritoneal fluid and plasma.