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이경민,송주희,장재혁,심수정,강양화,안재경,이숭호,박미영,정문호 대한보건협회 2002 대한보건연구 Vol.28 No.4
Object The usage of agricultural chemical is on the increasing. Use of pesticides has increased agricultural production. However, negative externalities from such use have increased too. Pesticide poisoning is a major public problem. The purpose if this study is to find out the relationship between keeping the safety rules or protective equipments or attending safety education or dose of pesticides use , and poisoning experience. Methods For Gu, H.M. and Pack, S.G. study , we obtained questionnaire data concerning pesticides poisoming. A person interviews on 203 were conducted in two villages in Sinmeari and woulbonri Chunchun , Kangwon province, July 2002. Result 1. 144 people(70.9%) have sprayed pesticides and the rata of experiences of pesticide poisoning was 26% among 144. Spraying time of pesticides was 1-2 hours in 63.9% of farmers. Rate of using the protective equipment was 25.7% (protective clothes), 49.3% (Mask), 48.6 (Gloves), 7.0 (Protective glasses), 64.6% (boots) respectively. 2. Chi-square and multiple logistic regression analysis showed that Duration of spraying per day (<2hr) and using of mask(protective equipment)are significantly association with poisoning experience.(x^2=5.2684 p=0.0217, CI=0.140-0.5853 OR=0.346 p=0.0211 respectively). But no association between poisoning experience and keeping safety rule, attending of safety education. 3. Spraying pesticides. Duration of spraying pesticides, reading manuals and no spraying at fatigue (keeping safety rule) are significantly association with symptom experience(x^2=14.0621 p=0.0002, x^2=7.0639 p=0.0079, CI01.395-10.950 OR=3.908 p=0.0095, CI=0.101-0.726 OR=0.271 0.0094 respectively). But no association between symptom experience and protective equipments, attending of safety education.
Ju-Kyong Jang,Sangwon Kwak,Ga Young Choi,Jung-Hong Ha,Sung-Baik Choi,Hyeon-Cheol Kim 대한치과의사협회 2015 대한치과의사협회지 Vol.53 No.10
Objectives: This study compared the mechanical efficacy of sonic activated and passive ultrasonic irrigation for removing intracanal medicament from a simulated root canal under controlled conditions. Materials and Methods: Thirty simulated root canal in resin blocks were randomly divided into 3-groups. The canals were enlarged using ProTaper files and K3XF (#30/0.06). After cleaning and drying, canals were filled with Calcipex. Overfilled materials were wiped out and measured their weight to the unit of 1/10mg. After one week storage in 100% humidity 37℃ temperature, canals were irrigated using 20mL of saline with one of following methods according to the designated groups (n = 10). For group-NI, 30-gauge nickel-titanium irrigation needle was used. During irrigation with every 5mL, needle was moved in-and-out with 4-mm amplitudes. EndoActivator and ultrasonic tip were used for group-EA and group-UT respectively for 20 seconds after every 5mL irrigation using needle. Then the weight was measured again to calculate the weight of residual remnants. The data were analyzed by one-way ANOVA and Duncan’s post-hoc test at a significance level of 95%. Results: The weight of the residual medicaments were 3.62±0.81 mg, 2.84±0.28 mg, and 2.73±0.90 mg for group-NI, -EA, and -UT, respectively. Group-EA and group-UT had no significant differences to remove intracanal medicament and left significantly less amount of paste than group-NI (p < 0.05). Conclusions: Under the controlled conditions of this study, the sonic activation and PUI have similar mechanical efficacy for removing intracanal medicament.
Jang, Ju-Kyong,Kwak, Sangwon,Choi, Ga Young,Ha, Jung-Hong,Choi, Sung-Baik,Kim, Hyeon-Cheol The Korean Dental Association 2015 대한치과의사협회지 Vol.53 No.10
Objectives: This study compared the mechanical efficacy of sonic activated and passive ultrasonic irrigation for removing intracanal medicament from a simulated root canal under controlled conditions. Materials and Methods: Thirty simulated root canal in resin blocks were randomly divided into 3-groups. The canals were enlarged using ProTaper files and K3XF (#30/0.06). After cleaning and drying, canals were filled with Calcipex. Overfilled materials were wiped out and measured their weight to the unit of 1/10mg. After one week storage in 100% humidity $37^{\circ}C$ temperature, canals were irrigated using 20mL of saline with one of following methods according to the designated groups (n = 10). For group-NI, 30-gauge nickel-titanium irrigation needle was used. During irrigation with every 5mL, needle was moved in-and-out with 4-mm amplitudes. EndoActivator and ultrasonic tip were used for group-EA and group-UT respectively for 20 seconds after every 5mL irrigation using needle. Then the weight was measured again to calculate the weight of residual remnants. The data were analyzed by one-way ANOVA and Duncan's post-hoc test at a significance level of 95%. Results: The weight of the residual medicaments were $3.62{\pm}0.81mg$, $2.84{\pm}0.28mg$, and $2.73{\pm}0.90mg$ for group-NI, -EA, and -UT, respectively. Group-EA and group-UT had no significant differences to remove intracanal medicament and left significantly less amount of paste than group-NI (p < 0.05). Conclusions: Under the controlled conditions of this study, the sonic activation and PUI have similar mechanical efficacy for removing intracanal medicament.
Kyong Min Kim,Byung Jo Jang,Whang Sin Cho,Sung Hoo Ju 한국물리학회 2005 Current Applied Physics Vol.5 No.1
We have developed a thin lm multi layer as encapsulation method for OLED. The characteristics of the OLED encapsulatedwith thin lm multi layer showed the similar OLED with metal cap encapsulation. The IVL test of OLED panels with thin lmmulti layer showed that the brightness is 1000 cd/m2 with the eciency of 7.6 lm/W at the 7 V and it took more than 2000 h for thebrightness to fall from 1000 to 500 cd/m2. This result shows that the device with thin lm multi layer has similar level of brightnessand eciency and more than 95% of lifetime compared to device with metal can encapsulation. Thus, we can conrm that thin lmmulti layer has an eect as encapsulation process to protect organic light emitting device. Also, thin lm multi layer for the pro-tection of organic light emitting device simplies passivation process, makes less than 0.8 mm thick device and is also applicable towide and exible display.
Integrated genomic analysis of recurrence-associated small non-coding RNAs in oesophageal cancer
Jang, Hee-Jin,Lee, Hyun-Sung,Burt, Bryan M,Lee, Geon Kook,Yoon, Kyong-Ah,Park, Yun-Yong,Sohn, Bo Hwa,Kim, Sang Bae,Kim, Moon Soo,Lee, Jong Mog,Joo, Jungnam,Kim, Sang Cheol,Yun, Ju Sik,Na, Kook Joo,Cho BMJ Publishing Group Ltd 2017 Gut Vol.66 No.2
<P>Conclusion We developed an easy-to-use prognostic model with three sncRNAs as robust prognostic markers for postoperative recurrence of ESCC. We anticipate that such a stratified and systematic, tumour-specific biological approach will potentially contribute to significant improvement in ESCC treatment.</P>
SI 프로젝트 수행을 위한 내부관리 관점의 위험관리프레임워크
이주희 ( Ju-hee Lee ),궁한경 ( Han-kyong Kung ),백상기 ( Sang-gi Back ),양대철 ( Dae-chul Yang ),장송봉 ( Song-bong Jang ),최성운 ( Sung-woon Choi ) 한국정보처리학회 2008 한국정보처리학회 학술대회논문집 Vol.15 No.1
많은 기업의 정보화 프로젝트가 계획된 예산과 기한 내에 완수하지 못하고, 폐지되거나 당초 예상된 성과를 달성하지 못하고 있다. 정보화 프로젝트의 성공 확률을 높이기 위해서는 프로젝트 실패의 원인이 될 수 있는 잠재된 위험을 식별하고, 식별된 위험요인을 체계적이며, 지속적으로 관리할 필요가 있다. 본 논문에서는 정보화 사업 중 시스템통합 사업에서 발생할 수 있는 위험요인을 체계적으로 분류하고 관리 할 수 있는 기반을 제안하고자 한다. 위험관리 프레임워크는 이해당사자 들의 관점을 중심으로 위험요인을 체계적으로 분류하고, 위험요인을 점검할 수 있는 체크리스트를 제공함으로써 각 이해당사자들의 요구에 맞게 SI 프로젝트의 위험에 대응하여 정보화 프로젝트의 성공 확률을 높이는 데 이바지 할 수 있다.