http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
톨루엔을 포함한 유기용제의 직업적 폭로로 인한 신경내분비계 영향
이채언,이종태,정의화,손혜숙,문덕환,전진호,강정학,이창희,김휘동,김종한,정귀옥 大韓産業醫學會 1995 대한직업환경의학회지 Vol.7 No.2
Long term occupational exposure to solvent mixtures may cause adverse effects to the central nervous system with neurobehavioral symptoms. And some organic slovents have been suggested to cause impairment of tuberoinfundibular dopaminergic activity and neurochemical mechanisms controlling pituitary secretion. For the purpose of assessing neuroendocrine effects in occupational solvents exposure, hormonal study settings (shoes-manufacturing industry & fishing products industry) and compared with nonexposed controls(33 men, 85 women). Male workers exposed to solvent mixtures had significantly lower plasma level of follicle-stimulating hormone(FSH) than nonexposed male controls. While female workers exposed to solvent mixtures had significantly lower plasma levels of growth hormone(GH), and thyroid-stimulating hormone(TSH) than nonexposed female controls. The results of significant decrease in plasma concentrations of pituitary hormones(FSH, GH, and TSH) in workers exposed solvent mixtures indicate that occupational exposure to solvent mixtures may induce neuroendocrine effects through an effect on hypothalamic pituitary axis.
스포츠전문채널 방송3사 프로야구 해설자의 공신력이 채널만족 및 채널충성도에 미치는 영향
김종훈 ( Jong Hoon Kim ),이정학 ( Jeoung Hak Lee ) 한국스포츠산업경영학회 2011 한국스포츠산업경영학회지 Vol.16 No.5
This study aims to furnish the basic empirical data to differentiate image of professional sports channels of broadcasting stations through more efficient operation strategies image managing plan, and the operation of the communication media of the broadcasting stations by looking through the relationship between the credibility of professional sports channels of three broadcasting stations, channel satisfaction and loyalty. The study conducted a research survey through convenience sampling method aimed at college students n Seoul and Gyeonggi area, who currently are the media receivers. Total of 424 copies were selected as the final validity sample. For the measuring instrument, precedent studies of Kim Hyun-Joo(1998), Kim Eun-Sung(2003), Kim Soo-Kyung(2005), Lee Jeoung-Hak, Kim Jong-Hoon & Noh Jae-Hun(2007), Park Ran Hee(2008), Jo Gun Jin(1998) were used and reconstructed according to this research. The research target scope was limited to professional sports channel casters, MBC SPORTS+(Hu Goo-Youn), KBSN Sports(Ha Il-Sung), SBS ESPN(Park No-Jun) who are the commentators of the professional sports channels of three broadcasting stations. The result of the study showed there were significant differences between the sub-factors of commentators`` credibility, ``expertise``, ``trustworthiness``, ``popularity``, ``dynamic`` and professional sports channels of three broadcasting stations. And ``expertise``, ``trustworthiness`` sub factors influenced significantly on it. On the basis of the results, professional baseball casters with more professionalism and trustworthiness are needed in able to gain more credibility from the public.
고성토의 암성토에 대한 흙의 함유율이 다짐에 미치는 효과에 관한 실험적 연구
이종출,이영대,정진호,류재학,정두회 釜慶大學校 1999 釜慶大學校 論文集 Vol.4 No.1
We have carried out the field compaction tests in the site in which the high rock fill embankments are going to be constructed about 25m in height, to examine the effect of the soil fraction to the total embankment materials which are the mixture of rock fills and soils on the degree of field compaction. We have made four sets of in-situ concrete boxes of the size of 1.5m×1.5m×0.6m to obtain the maximum dry density of total embankment materials after compacting by using a 10-ton vibrating tamping roller. We have found, as a result, that the optimum passing number of the roller to yield the 90% of relative compaction economically attainable has appeared to be 8 passes, and that the percent of the soil fraction to the total embankment materials to yield the 90% of relative compation in the field has appeared to be 41.78% by weight.
이종학 大邱敎育大學校 科學敎育硏究所 2021 과학·수학교육연구 Vol.44 No.-
본 연구는 IBO에서 운영하는 초등학교급의 교육과정인 PYP가 지향하는 탐구 기반 수업에 대해서 알아보고, 나아가 PYP를 도입한 초등학교에서 탐구 기반 교수·학습을 수행하는 현장 교사들이 주로 활용하는 Kath Murdoch(1996)의 탐구 주기(Inquiry Cycle)에 대해서 구체적으 로 살펴보았다. 그리고, 이를 통해 IBO에서 말하는 수업 자료 개발 단계인 PYP Planner에 따 라 PYP 탐구 기반 수학 수업 자료를 예시적으로 개발하고 실험 수업을 수행하였다. This study investigated the inquiry-based classes pursued by the PYP, an elementary school-level curriculum operated by the IBO. Field teachers in elementary schools that have introduced PYP use the inquiry cycle of Kath Murdoch (1996). So, We investigated about the Inquiry Cycle. In accordance with the PYP Planner, PYP inquiry-based math class materials were developed as an example and experimental classes were conducted.
이상용,박익근,윤종학,노승남,안형근 한국공작기계학회 2001 한국공작기계학회 춘계학술대회논문집 Vol.2001 No.-
A new flaw detection technique using by SH angle beam method has been discussed. The SH-wave is horizontally polarized shear wave and the surface SH wave has a characteristic of traveling along near surface layer. The surface SH wave technique is valuable for the detection of fatigue cracks at fillet weld heels which cannot be detected by other ultrasonic technique such as angle beam technique and The dispersion curves of it has simple characterization. In this work, using these beneficial chraterization, quality evaluation of spot weld with ultrasonic sound intensity of SH-wave passing through nugget area of spot weld are verified experimentally.