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HPLC를 이용한 Benfuracarb의 측정법에 관한 연구
조만희,김창세,이상한,조경환 순천향의학연구소 1997 Journal of Soonchunhyang Medical Science Vol.3 No.2
The measurements of pesticide Benfuracarb were studied and following conditions were proposed as a most good methods; 1. There were detected at 274 nm by means of Hitachi 200-20 spectrophotometer. 2. Pesticide Benfuracarb mesurement was performed by means of ISCO model 2350, spherisorb ODS column, 80% acetonitrile as a solvent phase, flow rate 0.5 ml/min, chart speed 0.5 cm/min, and 25℃ oven temperature. 3. The relationships between the concentration and absorbance of pesticide Benfuracarb were linear from 5 to 50 ppm. 4. Deproteinzation and the recovery rate would be used satisfactorily in Folin-Wu.
조경환,강소랑 경인행정학회 2019 한국정책연구 Vol.19 No.2
본 연구는 한국복지패널데이터를 이용하여 성별, 혼인, 종교 및 전국 5개 권역, 교육수준 등 인구통 계학적 요인별로 기부와 자원봉사에 유의미한 영향의 차이가 있는지를 t검정하고 가처분소득, 부동산 자산, 금융자산과 같은 경제적 요인의 영향정도와 방향을 분석한다. 특히 선행연구가 비교적 부족했던 사회심리적 요인에 집중해 건강, 가족의 수입, 주거환경, 가족관계, 직업, 사회적친분관계, 여가생활의 만족도로 세부 분류하여 영향력을 비교해 본다. 연구결과, 남성이 여성보다 기부금액은 많았으나 자원봉사 횟수는 적었다. 기부는 30-40대가 가장 많았으며 자원봉사는 70대 이상이 가장 많이 했다. 기부는 학력이 높을수록 자원봉사는 낮을수록 많았 고, 유배우자의 기부가 더 많았다. 경제적 요인들은 기부와 양(+)의 관계를 가졌으나 자원봉사에는 음 (-)의 관계였다. 사회심리적 요인 중에서도 직업만족도는 기부와 양의 관계였지만 자원봉사에는 음의 관계였다. 반면 사회적친분관계만족도와 여가생활만족도는 자원봉사는 늘렸지만 기부는 줄였다. 기부 와 자원봉사가 대체관계로 나타나 둘을 동시에 높이기에는 한계가 있었다. 요인별로 차별성 있고 맞춤식으로 접근하되 기부와 자원봉사 모두에 관여할 소지가 있는 사회심리 적 요인에 더 유의해야 함을 시사한다. This essay addresses how demographic, economic, and socio-psychological factors, in particular, affect individuals’ giving and volunteering to utilize data from KOWEPS. A t-test has been done to find statistical differences between sample groups and a multiple regression analysis has been introduced to estimate the size of impact and the direction of it. The results indicate that men donate more money than women do while women outnumber men in volunteering. In addition, the higher the individuals have the level of education, the more money they donate while the lower the level of education, the more the number of volunteering. Disposable income and real estate asset among economic factors affect positively giving but not volunteering. When it comes to socio-psychological factors, the degree of job satisfaction has a positive impact on giving but not on volunteering. On the other hand social relationship and leisure time satisfaction influence positively on volunteering but not on giving. And since giving and volunteering are in a trade-off relation, we can’t increase both simultaneously. Drawing upon the findings, we’d better pursue solutions considering the differences of the factors and put more focus on the socio-psychological factors which have the possibility to engage in both giving and volunteering.
조경환 중국어문연구회 2011 中國語文論叢 Vol.0 No.48
句法結構(syntatic structure)和語義結構(semantic structure)之間的聯係規則(lingking rules)在語言學界是一個備受촉目的話題, 但我們發現這種聯係規則存在一些問題。因爲聯係規則不能把握句子裏的歪曲(screwing)因素, 而且一個句子除了句子裏面的動詞和論元以外, 還具有自己本身的意義。所以我們主張要把握漢語的句法結構和語義結構, 不能根據聯係規則, 而是要以句子爲依據。本篇文章主要考察了表處置的代表句型‘把’字句, 表被動的代表句型‘被’字句, 以及表致使的代表句型‘使’字句, 幷且觀察到各句型都具有自己本身的語義。由此可知, 雖然兩個句型可以互相變換, 但這幷不意味著兩個句型表示同樣的意義。
조경환,최봉근,노병국,임종수,김도훈,고병준,김양현,김선미,심광보 한양대학교 세라믹연구소 2011 Journal of Ceramic Processing Research Vol.12 No.5
Pb(Zr0.5Ti0.5)O3 piezoelectric ceramics have been prepared using a spark plasma sintering technique and adapted for the design of a noninvasive lipolysis system, as the traditional ultrasound-assisted lipolysis system (UALS) is extremely invasive,significantly increasing the risk of morbidity and mortality. In order to transfer high sonic energy into a certain depth of skin (subcutaneous area) with minimal damage to superficial skin, a focusing acoustic wave design was developed. The selfdesigned UALS device was found to be very effective in destructing the adipocytes around the focused area in animal experiments. The focusing probe with bio-applicable piezoelectric materials shows great promise for future clinical applications.