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Polyesters Syntheses via Palladium Catalyzed Carbonylative Polycondensation Reaction
김영조 ( Young Cho Kim ),유동성 ( Dong Seong Ryu ),김진일 ( Jin Il Kim ) 한국공업화학회 1991 한국공업화학회 연구논문 초록집 Vol.1991 No.0
Novel Polyesters were succesfully synthesized by palladium catalyzed carbonylative polycondensation of xylene dibromides and various diols with carbon monoxide. The effects of reaction variables, such as catalysts, bases, solvents, carbon monoxide pressure, and reaction temperature, were discussed in detail for the reaction of p-dibromoxylene and 2, 2-bis(4-hydroxyphenyl)propane with carbon monoxide. The polyesters were characterized by IR, elemental analysis, GPC, DSC, TGA, and polarizing microscope.
축산물가공품에서 대장균군수 측정 표준검사법과 TEMPO(R) CC 자동화장비와의 비교 분석
김영조 ( Young Jo Kim ),위성환 ( Sung Hwan Wee ),윤하정 ( Ha Jung Yoon ),허은정 ( Eun Jeong Heo ),박현정 ( Hyun Jung Park ),김지호 ( Ji Ho Kim ),문진산 ( Jin San Moon ) 한국예방수의학회(구 한국수의공중보건학회) 2011 예방수의학회지 Vol.35 No.2
To evaluate the performance of a new automated coliform enumeration system (TEMPO(R) CC) for the quantitative test of coliform bacteria contaminated in domestic livestock processed foods, a total of 507 samples of livestock foods were tested by the TEMPO(R) CC method, the most probable number (MPN) method, and Petrifilm method, respectively. The results of those three methods were compared to each other. Of 507 samples of livestock processed foods used in this study, 217 samples were contaminated artificially with coliform bacteria and the rest (n=290) were contaminated naturally. The results of the TEMPO(R) CC method for all samples were equivalent to those obtained from the MPN method, except 8 samples. In addition, 496 (97.8%) out of 507 samples made agreement between the TEMPO(R) CC method and the Petrifilm method. The correlation coefficients between TEMPO(R) CC and MPN methods as well as between TEMPO(R) CC method and Petrifilm method were above 0.9, and the slope and intercept of the linear regression model was different in less than 1 value. In conclusion, there were statistically equivalent levels of performance between the TEMPO(R) CC and the reference and alternative methods for the enumeration of coliform bacteria in livestock processed foods in this study.
급성 심근경색증 발생 위험인자와 경색관련동맥의 협착정도와의 연관성
김영진(Young Jin Kim),이태일(Tae Il Lee),이재련(Jae Lyun Lee),조인호(In Ho Cho),신동구(Dong Gu Shin),김영조(Young Jo Kim),심봉섭(Bong Seop Sim),이현우(Hyun Woo Le) 대한내과학회 1995 대한내과학회지 Vol.49 No.5
N/A Objectives: The most common cause of myocardial infarction is atherosclerotic lesion of epicardial coronary artery. But coronary blood flow can also be dampered by the arterial emboli, spasm. and this may result in myocardial infarction. To investigate the risk factors of myocardial infarction with normal coronary artery, a study was conducted. Methods: This study was made on 122patients, admitted at Yeungnam University Hospital as their first attack for acute myocardial infarction, from August 1992 to May 1994. The patients undertook angiography with thrombolytic therapy at the earliest possible time. These patients were classified into four groups: group 1-patients with less than 25% stenosis of infarct related artery(IRA); group 2-between 25-50% stenosis of IRA; group 3-between 51-75% stenosis of IRA; group 4-between 76-99% stenosis of IRA. Results: Among 122patients with myocardial infarction, the mean age was 55.4years old and the ratio of male to female was 3.5:1. Group 1patients had a significantly lower mean age(44.6years) than group 3patients(55.8years) and group 4patients (59.1years). Of fifteen patients in group 1, 12 patients developed acute myocardial infarction under 50years of age. In frequency of risk factors of coronary heart disease, 84 of 122cases(68.9%) were smokers. The number of smokers was higher in group 1 (86.7%) than group 3 (58.6%) and group 4 (64%). The frequency of angina prior to myocardial infarction was lower in group 1 (7%) than group 3 (45%) and group 4 (46%). The frequency of multivessel disease was lower in group 1 (13%) than group 3 (31%) and group 4 (50%). There was no significant difference in the frequency of the hypertension, diabetes, dyslipidemia, and obesity among the groups. Conclusion: Acute myocardial infarction with near normal infarct related artery developed at young age compared with those with significant infarct related artery stenosis. The number of smokers was higher and the frequency of previous angina history was lower in the same group.
연구논문 : 가족친화제도가 여성 근로자의 경력몰입 및 이직의도에 미치는 영향 -사회적 지원의 조절효과를 중심으로-
김영조 ( Young Joe Kim ),이유진 ( Yu Jin Lee ) 한국인적자원관리학회 2012 인적자원관리연구 Vol.19 No.3
본 연구는 가족친화제도의 시행여부 및 이용여부가 여성 근로자들의 경력몰입과 이직의도에 어떤 영향을 미치는지, 그리고 가족친화제도와 경력몰입 및 이직의도의 관계에 있어서 사회적 지원이 조절효과를 갖는지 분석하고 있다. 276명의 여성 근로자들로부터 자료를 수집하여 실증분석에 활용하였다. 실증분석 결과 첫째, 기업이 도입 시행하고 있는 가족친화제도는 여성 근로자들의 경력몰입을 높여주고 이직의도는 낮추는 긍정적 효과를 갖는 것으로 밝혀졌다. 둘째, 상사 및 가족의 지원은 가족친화제도와 경력몰입 간의 관계를 조절하는 것이 아니라 경력몰입에 직접적인 정의 효과를 갖는 것으로 나타났다. 마지막으로, 동료의 지원은 가족친화적 제도와 이직의도의 관계에 있어서 조절효과를 보였는데, 동료지원의 수준이 높은 경우 가족친화제도가 이직의도에 미치는 효과가 더욱 확대되는 것으로 나타났다. 이러한 연구결과가 갖는 시사점에 대해 논의하였다. This study is aimed to investigate the effects of family-friendly policies on the career commitment and turnover intention of female workers, and also to examine the moderating effect of social support (supervisor, co-worker, and family support) on the relationships between those variables. The data for the empirical analysis were collected from 276 female workers in Busan City. The results indicate that there are significant differences in career commitment and turnover intention between firms that offer family-friendly benefits and those that do not, Five out of 10 policies have significant impacts on career commitment, and 9 policies on turnover intention, Second, the total number of family-friendly benefits provided are positively related to the career commitment and negatively related to turnover intention, Third, supervisor and family support do not have a moderating effect but a main effect on the career commitment. Fourth, co-worker support has a moderating effect on the relationship between the family-friendly benefits and turnover intention. To be specific, the family-friendly benefits have a strong negative impact on turnover intention for the female worker with higher co-worker support, but not a significant impact for those with lower co-worker support. The implications of these findings were then discussed.
축산물가공품에서 건조필름법과 TEMPO<sup>®</sup>TVC 검사법의 총세균수 비교분석
김영조,위성환,윤하정,허은정,박현정,김지호,문진산,Kim, Young-Jo,Wee, Sung-Hwan,Yoon, Ha-Chung,Heo, Eun-Jeong,Park, Hyun-Jeong,Kim, Ji-Ho,Moon, Jin-San 한국식품위생안전성학회 2012 한국식품위생안전성학회지 Vol.27 No.1
본 연구에서는 축산물가공품에서 건조필름법과 $TEMPO^{(R)}$ TVC의 총세균수 측정에 대한 유효성을 평가하였다. 이를 위하여 국내 유통 중인 축산물가공품 257건과 대장균과 황색포도상구균을 인위적으로 접종시킨 축산물가공품 87건에서 대하여 총세균수를 측정하였다. 실험결과는 $log_{10}$ 값으로 전환 후 CCFRA Guideline 29에 의하여 두 검사법간의 일치율을 분석하였고, Pearson의 검정법을 이용하여 상관분석을 실시하였다. 식육가공품 중 햄류, 건조저장육, 분쇄가공육제품 및 식육추출가공품에서 두검사법간 93%이상의 일치율이 확인된 반면 소시지류에서는 89.1%의 일치율을 보였다. 이에 반하여 우유류, 치즈류, 아이스크림류, 조제유류에서는 92% 이상의 일치율을 보였고, 알가열성형제품은 100%의 일치율을 보였다. 또한 소시지류(상관계수 $r$ = 0.77)와 치즈류(상관계수 $r$ = 0.89)를 제외한 축산물가공품 모든 유형에서 건조필름법과 $TEMPO^{(R)}$ TVC 검사법간의 상관계수($r$)가 0.9 이상으로 ($P$ < 0.001) 높은 양의 상관관계를 나타내었다. 결론적으로 본 연구에서 $TEMPO^{(R)}$ TVC는 검출한계가 있는 일부 축산물가공품을 제외하고 총세균수 검사에 있어서 효과적인 것으로 나타났다. We compared between an automated most-probable-number technique $TEMPO^{(R)}$TVC and traditional plating methods $Petrifilm^{TM}$ for estimating populations of total aerobic bacteria in various livestock products. 257 samples randomly selected in local retail stores and 87 samples inoculated with $E.$ $coli$ ATCC 25922, $Staphylococcus$ $aureus$ ATCC 12868 were tested in this study. The degree of agreement was estimated according to the CCFRA (Campden and Chorleywood Food Research Association Group) Guideline 29 and the agreement indicates the difference of two kinds methods is lower than 1 log base 10($log_{10}$). The samples of hams, jerky products, ground meat products, milks, ice creams, infant formulas, and egg heat formed products were showed above 95% in the agreement of methods. In contrast, proportion of agreement on meat extract products, cheeses and sausages were 93.1%, 92.1%, 89.1%, respectively. One press ham and five sausages containing spice and seasoning, two pork cutlets containing spice and bread crumbs, two meat extract product and two natural cheeses and one processing cheese with a high fat content, and one ice cream containing chocolate of all samples showed the discrepancy. Our result suggest that $TEMPO^{(R)}$TVC system is efficient to analyses total aerobic bacteria to compare manual method in time-consuming and laborious process except livestock products having limit of detection.
대전입자형 디스플레이의 입자주입 방법에 의한 구동특성 연구
이동진,김영조,Lee, Dong-Jin,Kim, Young-Cho 한국전기전자재료학회 2012 전기전자재료학회논문지 Vol.25 No.2
We analyzed the movement and response time of charged particles according to particle-inserting methods to understand the variation of quantity of q/m of charged particles, which is a very important factor in electrical and optical characteristics of the charged particle type display, such as lifetime, response time, contrast ratio, reflectivity, etc. For our study we used white and black charged particles of which diameter is $20{\mu}m$, prepared pieces of ITO(indium tin oxide) coated glass substrate, and formed ribs on the glass substrates. The width of a rib is $30{\mu}m$ and the cell size is $220{\mu}m{\times}220{\mu}m$. As the particle-inserting methods, the white and black charged particles were respectively inserted into a front and a rear panel with a very small electric field and also the mixture of the white and black charged particles were inserted into a rear panel. As a result of the driving characteristics of charged particles, the factors about variation of quantity of q/m according to the particle inserting method was experimentally demonstrate, showing very different driving voltage, response time, the particle movement, etc.