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홍성현,배종수,임창동,나영상,송명엽,Hong, Seong-Hyeon,Bae, Jong-Soo,Yim, Chang-Dong,Na, Young-Sang,Song, Myoung-Youp 한국수소및신에너지학회 2006 한국수소 및 신에너지학회논문집 Vol.17 No.2
The eutectic Mg-23.5%Ni alloy was casted by melting and solidification. The powders of Mg-23.5%Ni and (Mg-23.5%Ni)-10% iron oxide were prepared by mechanical grinding of casted Mg-Ni alloy and casted Mg-Ni alloy+oxide, respectively. As milling time increases, hydriding and dehydriding rates of Mg-Ni and Mg-Ni-oxide alloy powders increase. The additions of iron oxide to Mg-Ni alloy and Mg-Ni-oxide increase hydriding rates and slightly decrease dehydriding rates.
미나리, 시금치, 엇갈이배추 및 쪽파 중 살충제 Chlorantraniliprole의 잔류량 비교
조성찬 ( Sung-chan Cho ),이상협 ( Sang-hyeob Lee ),곽세연 ( Se-yeon Kwak ),홍성현 ( Seong-hyeon Hong ),김효정 ( Hyo-jeong Kim ),사커아니룻다 ( Aniruddha Sarker ),경기성 ( Kee-sung Kyung ),김태화 ( Tae-hwa Kim ),김장억 ( Jang-eok K 한국환경농학회 2018 한국환경농학회 학술대회집 Vol.2018 No.-
Different growth type of crops is one of major factors determining residual patterns of pesticides in them. In this study, residual characteristics of chlorantraniliprole in water dropworts (WD), spinach (SP), Korean cabbage (KC) and green onion (GO) which are different in leaf size and shape were investigated. Commercial chlorantraniliprole (5%, SG) was sprayed 2 times at interval of a week prior to harvest, and whole crop samples were collected at final application and harvest days. Residual amounts of chlorantraniliprole in the WD, SP, KC and GO were analyzed using HPLC-UVD, and recovery rates of chlorantraniliprole spiked with 0.4 and 2.0 mg/kg on the WD, SP, KC and GO ranged from 86.6 to 101.0%. Initial residual amounts of chlorantraniliprole were 0.51-1.26 mg/kg in WD, 0.47-2.41 mg/kg in SP, 0.32-1.86 in KC and 0.12-0.65 mg/kg in GO. These results show that initial amounts of chlorantraniliprole deposited on SP is the most amounts in four crops as opposed to GO and it may be 4 folds larger than those in GO, when assuming that weights of the SP and GO are same. Pesticides applied on SP and KC, which has wide and rough leaves, may have larger residual amount than those on WD and GO.
임상실습을 경험한 물리치료 전공 학생의 전문직업성 연구
유재호,배영현,노수현,김윤태,홍성화,Yu, Jae-Ho,Bae, Young-Hyeon,Noh, Su-Hyun,Kim, Yun-Tae,Hong, Sung-Hwa 대한물리치료과학회 2021 대한물리치료과학회지 Vol.28 No.2
Purpose: The purpose of this study is to find the perceived level of professionalism of physical therapy student who experienced clinical practice. Design: Cross-sectional study. Methods: The subjects of the study were conducted for 3 months from March to June, 2017, and randomly selected physical therapy student who experienced clinical practice in Chungnam-Do. The 138 students in cross-sectional survey were done via Korean of Professionalism In Physical Therapy: Core Values (PPTCV). The questionnaire data analyzed by SPSS 19.0 version. Results: The mean scores of PPTCV were accountability 41.34±0.83, altruism: 19.67+0.90, compassion/caring 43.82±0.81, excellence 45.57±0.80, integrity 43.69±6.16, professional duty 28.67±4.70, and social responsibility 45.84±7.64. Conclusion: Physical therapy students who experienced clinical practice had overall high scores.
한국 성인 알레르기 비염 환자의 삶의 질 평가를 위한 설문지 개발 및 유용성 평가를 위한 연구
정민규 ( Min Kyu Jung ),홍성진 ( Sung Jin Hong ),이수현 ( Soo Hyeon Lee ),홍수정 ( Soo Jung Hong ),손정우 ( Jung Woo Son ),강원석 ( Won Seok Kang ),이용원 ( Yong Won Lee ),홍천수 ( Chein Soo Hong ),이정권 ( Jung Kwon Lee ),박중원 대한천식알레르기학회 2008 천식 및 알레르기 Vol.28 No.2
Background: Quantitative measurement of allergic rhinitis (AR)-specific quality of life (QOL) impairment is important for the evaluation of its burden and efficacy of treatment. However, the QOL questionnaire for Korean AR has not yet been developed. Objective: The aim of this study is to develop and validate the QOL questionnaire for Korean AR patients. Method: We surveyed 22 AR-related items in 284 persistent AR patients and, based on the survey, developed an AR-specific Korean QOL questionnaire. The questionnaire consisted of 15 items and adapted 5-point scale for each item. We validated the questionnaire by comparing the QOL scores from 95 patients before and after the treatments with mometasone or levocetrizine. Result: The mean QOL score was lowered by 0.73 (0.33, 1.80) (P<0.001) in 30 patients with a definite improvement and by 0.63 (?0.33, 1.73) (P<0.001) in 29 patients with a slight improvement. However, the score was not significantly lowered in 17 patients without improvement [0.20 (0.00, 0.33), P=0.24]. The questionnaire was also highly reproducible with the value of intraclass correlation coefficient and interclass standard deviation as 0.996 (P<0.001) and 0.736, respectively. Conclusion: We developed and validated a Korean allergic rhinitis QOL questionnaire, and this can be used for evaluating the efficacy of treatment modalities for AR. (Korean J Asthma Allergy Clin Immunol 2008;28:113-120)
토양 중 살충제 Dinotefuran과 대사체의 분해양상
곽세연 ( Se-yeon Kwak ),이상협 ( Sang-hyeob Lee ),류준상 ( Jun-sang Ryu ),홍성현 ( Seong-hyeon Hong ),강자군 ( Ja-gun Kang ),김장억 ( Jang-eok Kim ) 한국환경농학회 2017 한국환경농학회 학술대회집 Vol.2017 No.-
This study was performed to investigate microbial degradation patterns of dinotefuran(DIN) and its metabolites(DN, UF and MNG) in soils under laboratory conditions based on result of field trials. In the field trials, DIN was treated with concentration of 2 mg/kg on the radish cultivated and non-cultivated soil before seeding radish. The initial residue amounts of DIN was 2.01 mg/kg and decreased to below limit of quantitaion (LOQ) at 60 days after treatement which result in the formation of UF upto 0.21 mg/kg for radish cultivated soils. While initial residues of DIN in non-cultivated soils was 2.00 mg/kg and steadily decreased 84% with 0.32 mg/kg at 70 day. UF as well as DN were produced after 50 days in non-cultivated soil. DIN was spiked with 2 mg/kg in each of 20 g sterilized and unsterilized soil and analysed at 0, 1, 3, 7, 14, 21, 30, 45 and 60 day after treatment under laboratory conditions. The residue amounts of DIN at 0 days were 1.97 mg/kg for sterilized soil and 1.99 mg/kg for unsterilized soil and both of them were decreased with a similar decline curve by 45 and 54% at end of experiment day, respectively. The degradation rate of DIN in unsterilized soil was higher than that of sterilized soil, which means mircroorganism was one of the factors that affected the degradation of DIN in soils. As the degradation of DIN by microorganisms in unsterilized soil, DN and UF were detected respectively upto 0.01 and 0.03 mg/kg and MNG was not detect.