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손정일(Jeong-Il Son),황추용(Ooi Chew Yong),신용존(Yong-John Shin) 한국국제상학회 2016 國際商學 Vol.31 No.4
본 연구는 내항해운 선원 인력의 부족 문제를 진단하고, 이를 해결하기 위한 선원 양성 및관리방안에 대하여 제시하고자 하였다. 우리나라 내항해운 업체에 대한 설문조사를 통해 내항해운 선원 인력에 대한 양적, 질적 측면의 수요를 파악하고, 선원 양성 및 관리상의 문제점을 진단하고, 이의 해결방안을 제시 하였다. 205개의 내항해운업체를 대상으로 선원 부족과 이에 대한 양적 수요와 선원의 요구조건 그리고 선원근무형태를 설문조사하여 인력 양성 및 관리상의 문제점을 도출하고, 이에 대한 해결방안을 제시하였다. 본 연구는 이러한 상황에서 내항해운 선원 수요와 양성 및 관리 방안에 관한 선행연구와 현황자료 그리고 산업체의 인력수요에 대한 실태조사를 통해 내항해운 산업계의 실제적인 선원 양성 및 관리 방안을 제시하였다는데 연구의 의의가 있다. Purpose : This study investigate the quantitative and qualitative demand for crew members in coastal shipping industry through the survey on coastal transportation companies and identifies the issues and resolutions in crew member training and management. This study diagnosed the issue of the lack of crew members by targeting 205 coastal transportation businesses. The lacking number of crew members was evident to have reduced the number of crew members per ship, which potentially leads to the issue of failure to supply proper number of crew members for coastal ship operation and management. Deficiency of crew members led to the failure of proper replacement and supplement of crew members. In order to resolve the issue of training and management of crew members in coastal transportation, first, it is vital to expand the labor force supply by providing coastal transportation education opportunities for the unemployed, the socially vulnerable, the poor, the North Korean defectors and foreign crew. Also, aid plans such as long-boarding pension payment, wage tax exemption, priority supply of national housing and special college admission process for the children of crew members should be provided to improve the appeal of coastal crew working conditions.
일부 VDT 사용 근로자의 자각증상과 심리증상과의 관련성 연구
손정일,이수진,송재철,박항배,Son, Jeong-Il,Lee, Soo-Jin,Song, Jae-Cheol,Park, Hung-Bae 대한예방의학회 1995 Journal of Preventive Medicine and Public Health Vol.28 No.2
The study subjects in this study are 295 workers who work on one electronics industry, and they were composed of 93 VDT and 202 non-VDT workers. This study was carried out to obtain the prevalence of subjective symptoms and to compare psychological symptom scores from SCL-90-R between VDT and non-VDT work groups. And to verify the relationship between VDT work related symptoms and psychological symptoms, the author compared SCL-90-R T scores between symptom complaining and non-complaining groups. The results are summarized as follows : 1. Throughout the prevalence study of VDT work related symptoms according to VDT work state, the author could select the final 10 symptoms by sex;'eye fatigue', 'foggy vision', 'neck discomfort or pain', 'shoulder discomfort and pain', 'light headedness', 'dizziness', 'acne', 'itching sensation on face', 'difficulty in concentration', 'memory disturbance' in males, and 'blurred vision', 'foggy vision', 'neck discomfort or pain', 'shoulder discomfort and pain', 'abdominal distention', 'indigestion', 'acne', 'prickling sensation on face', 'difficulty in concentration', 'memory disturbance' in females. 2. Throughout comparison of psychological symptom scores from SCL-90-R between VDT and non-VDT workers, except 'Interpersonal sensitivity' in female, Mean T score were higher in VDT workers, but not significantly different between the two groups. These results indicate that the relation between VDT work status and psychological symptoms are not strongly correlated. 3. Because of the nonspecific characteristics of VDT work related symptoms, from the 40 subjective symptoms, the author selected the final 10 symptoms by sex, especially correlated to VDT, and divided the study subjects into symptom complaining and non-complaining groups. The mean SCL-90-R T scores between the two groups were compared. Except for the opthalmologic symptoms in females, the scores were significantly different between the two groups in all symptoms. And this indicates that the VDT work related symptoms strongly correlated with the present individual psychological conditions. 4. Due to understand that which of the 9 psychological symptom dimensions are strongly correlated with the subjective symptoms, the author excuted muliple logistic regression analysis, and the result were as follows; 'depression' and 'somatization', in male, and 'obsessive-compulsive' and 'somatization' in female.
다전극 산소 센서를 이용한 고분자 막의 산소 투과도 측정 장치 연구
정일손 ( Il Son Jeong ),정재칠 ( Jae Chil Jung ),김태진 ( Tai Jin Kim ) 한국센서학회 2012 센서학회지 Vol.21 No.3
The existing permeability measurements based on pressure differential between the polymer membrane that is permeable to measure the amount of oxygen used, but these methods must be kept in a vacuum, and the measurement of the membrane with low permeability in the membrane is too time consuming. In recent years by using electrochemical method polymer membrane currents caused by the amount of oxygen is a measure of how much is used. In this study, apparatus consisting of one anode and six cathodes for multi-oxygen permeability tester used the same number of membranes produced by electrochemical oxygen permeation characteristics, In this study, one silver/silver chloride anode electrochemical method with a hexagonal sensor to put various kinds of polymer membranes with the six oxygen permeability for simultaneous mesurement in real-time systems. Six cathodes (Pt), and one of the coil-shaped anode (Ag/AgCl) to form a hexagonal one of the polarographic oxygen sensor in a single measurement system by six sensors. Each sensor for making hexagonal specificity of the sensor to compensate for the conditions obtained in a pure nitrogen gas and pure oxygen gas conditions, With this study, self-developed hexagonal sensor capable of measuring sensors and oxygen permeability tester, for a multi-six different oxygen permeability characteristics of the membrane measured at the same time.
류승호,손정일,이수진,송재철,Ryu, Seung-Ho,Son, Jeong-Il,Lee, Soo-Jin,Song, Jae-Cheol 대한예방의학회 1997 Journal of Preventive Medicine and Public Health Vol.30 No.3
작업장에서 장기간 폭로되는 현휘의 정도에 따른 시력저하 여부를 조사하기 위하여 모전선회사의 불량품을 가려내는 과정 중 빛의 반사정도가 큰 은도금 제품을 검사하는 부서인 lead frame반 여성근로자 13명과 이들의 시력저하정도를 비교하기 위하여 같은 업체에 불량품을 가려내는 과정중 빛의 반사가 적은 플라스틱제품을 최종 검사하는 Connector반 여성근로자 14명, 사무직 여성근로자 12명을 대상으로 조사한 결과를 요약하면 다음과 같다. 1. 입사 전과 비교하여 주관적인 현재의 시력이 변화가 있는 지에 대한 주관적인 평가는 Connector반, 사무직이 각각 81.8%, 85.7%가 나빠졌다고 응답한 반면 L/F반의 경우 대상자 전원(100%)이 나빠졌다고 응답하였다. 입사 전에 시력을 교정하지 않았던 대상자중 입사 후 안경이나 콘택트렌즈로 시력을 교정하게 된 비율은 Connector반의 경우 7명중 1명(14.3%), 사무직의 경우 5명중 2명(40%)인데 비해 L/F반의 경우 10명중 7명(70%)이 입사 후 시력을 교정 받았다. 2. L/F에서 주로 호소하는 증상은 안구피로로 전원이 매일 느끼고 있었고, 눈물이 난다(63.6%). 시력저하(45.5%), 충혈(45.5%), 눈부심(45.5%)의 순으로 호소하였다. 이들 외의 증상은 대체로 부서간의 비슷한 양상을 보였다. 3. 1991년부터 1996년까지 5년간의 원거리시력 자료 중 기준시점에서 부서별 좌측시력의 중앙값은 L/F반, Connector반, 사무직 각각 1.0(0.3-1.5), 1.0(0.4-1.5), 1.0(0.4-1.5), 우측시력의 중앙값은 각각 1.0(0.2-1.5), 0.95(0.3-1.2), 1.0(0.4-1.5)로 부서간의 유의한 차이는 없었다(p>0.05). 4. 5년동안 추적 관찰기간의 좌측 시력 변화는 Connector반, 사무직의 경우 연간 각각 -0.46줄$({\pm}0.70)$, -0.35줄$({\pm}0.36)$의 변화를 보인 반면, L/F반에서 연간 -1.42줄$({\pm}1.45)$의 변화를 보여 통계적으로 유의한 차이를 보였다(p=0.013). 우측시력 역시 Connector반, 사무직에서는 연간 각각 -0.59줄$({\pm}0.67)$, -0.31줄$({\pm}0.55)$의 변화를 보인 반면, L/F반에서 연간 -1.59줄$({\pm}1.10)$이의 변화를 보여 통계적으로 유의한 차이를 보였다(p=0.001). 연구결과, 저자는 장기간의 현휘에 폭로된 근로자들에게 근시를 초래할 수 있을 것이라는 가설을 제시하고, 고휘도 작업환경에 대한 대책마련이 필요할 것으로 생각한다. To evaluate the effects of reflected glare on eyes, authors assessed the periodic health examination(1991-1996) & self-administered questionnaire data of a semiconductor producing company. The 13 lead frame(LF) department workers have been exposed to high reflected glare in the process for examining the silver plating products. We compared the data of connector(14) and clerical(12) workers as the non-exposed ones. Among LF department workers, 100% felt their visual acuity worsened(connector:81.8%, clerical:85.7%), and 70% had worn the glasses o. contact lenses(connector : 14.3%, clerical :40%) since working at the company. Major ophthalmic symptoms of the LF workers are asthenopia, tearing, decreased visual acuity, congestion and glare. Decrease of visual acuity by Hahn's line change of the LF workers is significantly high during a 5-year follow-up(p<0.05 by simple regression) compared with connector clerical workers.
김정욱 ( Kim Jeong Ug ),전우규 ( Jeon U Gyu ),윤중원 ( Yun Jung Won ),박동일 ( Park Dong Il ),조용균 ( Jo Yong Gyun ),성인경 ( Seong In Gyeong ),박창영 ( Park Chang Yeong ),손정일 ( Son Jeong Il ),김병익 ( Kim Byeong Ig ),김은정 ( 대한소화기학회 2004 대한소화기학회지 Vol.43 No.2
Background/Aims: Increased intestinal permeability has been possible contributing factors to the pathogenesis of alcoholic liver disease. Moreover, it can contribute to the development of bacterial infection and intestinal endotoxemia in patients with liver cirrhosis. This study aimed to examine the difference of intestinal barrier dysfunction between alcoholic and viral liver disease patients through the comparison of the intestinal permeabilities of patients with clinical characteristics. Methods: Intestinal permeabilities were measured in 18 healthy controls, 41 patients with alcoholic liver disease (17 cases of alcoholic liver disease without cirrhosis and 24 cases of alcoholic liver cirrhosis) and 46 patients with viral liver disease (14 cases of chronic viral hepatitis and 32 cases of viral liver cirrhosis) by measuring 24 hour urine excretion of 51Cr-EDTA. Results: The intestinal permeability was significantly increased in the patients with alcoholic liver disease without cirrhosis (5.62±80%), alcoholic liver cirrhosis (5.29±48%) and viral liver cirrhosis (3.15±39%) compared with that in control subjects (1.99±53%). On the contrary, it was not increased in the patients with chronic viral hepatitis (2.05±57%) versus controls. The significant correlation was not found between intestinal permeability and clinical and laboratory findings. Conclusions: The intestinal permeability was elevated in patients with alcoholic liver disease compared to those with viral liver cirrhosis. The pathophysiology of liver injury secondary to intestinal epithelial damage may be different between alcoholic and viral liver diseases. (Korean J Gastroenterol 2004; 43:104-111)
백서에서 5-FU에 의한 장관손상 및 장내세균전위에 대한 젖소초유의 효과
김정욱 ( Kim Jeong Ug ),전우규 ( Jeon U Gyu ),이승세 ( Lee Seung Se ),윤중원 ( Yun Jung Won ),박동일 ( Park Dong Il ),조용균 ( Jo Yong Gyun ),성인경 ( Seong In Gyeong ),박창영 ( Park Chang Yeong ),손정일 ( Son Jeong Il ),김병익 ( 대한소화기학회 2003 대한소화기학회 추계학술대회 Vol.2003 No.-
<목적> 5-FU는 소화기계 종양의 치료에 흔히 쓰는 약제이나 점막염과 같은 장손상이나 장내세균전위를 유발하여 감염성 합병증이 발생하며, 장내세균전위는 장투과성의 증가, 장내세균 과증식 및 면역감소 등에 의해 발생한다. 초유는 출산 후 처음으로 획득되는 우유로 각종 성장인자와 면역글로불린 및 항균성 펩티드들이 함유되어 있다. 본 연구에서는 실험동물에서 저지방 젖소초유의 5-FU에 의한 장관손상 및 장내세균전위에 대한 효과를 알아보기로 하였다. <대상 및
상부 소화관 내시경 검사시 midazolam의 적절한 투여용량 및 투여용량에 영향을 미치는 인자와 검사 후 flumazenil의 투여시기
서정열 ( Seo Jeong Yeol ),윤중원 ( Yun Jung Won ),김정욱 ( Kim Jeong Ug ),박동일 ( Park Dong Il ),조용균 ( Jo Yong Gyun ),성인경 ( Seong In Gyeong ),박창영 ( Park Chang Yeong ),손정일 ( Son Jeong Il ),전우규 ( Jeon U Gyu ),김병익 대한내과학회 2003 대한내과학회지 Vol.65 No.4
Background: Intravenous administration of midazolam is widely used as a premedication for esophagogastroduonenoscopy. However, there are individual differences in midazolam doses for premedication and controversies for starting point of esophagogastroduon
자외선 조사에 의한 고춧가루 중 잔류농약 제거효과 연구
정유정(You-Jung Jung),엄미나(Mi-Na Eom),정일형(Il-Hyung Jeong),손종성(Jong-Sung Son),김경아(Kyung-A Kim),신상운(Sang-Woon Shin),오상헌(Sang-Hun Oh),김봉렬(Bong-Real Kim),채경석(Kyeng-Suk Chae),윤미혜(Mi-Hye Yoon) 한국농약과학회 2012 농약과학회지 Vol.16 No.2
This study was carried out to investigate the degradation of six residual pesticides (?- and β-Endosulfan, Cypermethrin, Fenitrothion, Hexaconazole, EPN) in red pepper powder after ultraviolet (UV) irradiation. The residual ratio of pesticides after 365 nm irradiation which distance is 20 cm and irradiation time is 5 minutes were 73.4, 69.6, 60.8, 92.7, 73.8 and 90.5% in ?-Endosulfan, β-Endosulfan, Cypermethrin, Fenitrothion, Hexaconazole and EPN, respectively. The residual ratio of pesticides after 254 nm irradiation which distance is 5 cm and irradiation time is 36 hours were 74.6, 64.5, 71.1, 79.1, 79.4 and 64.7% in ?-Endosulfan, β -Endosulfan, Cypermethrin, Fenitrothion, Hexaconazole and EPN, respectively.