http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
불가사리와 조개껍질을 개량제로 이용한 소화슬러지의 탈수 증진 비교
이재광,유대현,이면주,강호,Lee, Jae-Kwang,Yoo, Dae-Hyun,Lee, Myeon-Ju,Kang, Ho 한국자원리싸이클링학회 2004 資源 리싸이클링 Vol.13 No.3
불가사리와 조개껍질의 폐 수산자원을 개량제로 이용한 도시하수 슬러지의 탈수능 향상 연구를 수행하였다. 불가사리와 조개껍질을 105∼$700^{\circ}C$로 열처리하여 사용하였으며, 탈수방법으로는 원심분리와 벨트프레스를 사용하였다. 총 고형물 기준으로 개량제를 1∼8g/100mL 주입하여 탈수 후 슬러지 케익의 함수율을 15∼22% 저감시키는 결과를 얻었다. 개량제 주입 후 슬러지의 탈수 특성을 평가하기 위하여 CST(Capillary Suction Time)를 측정하였다. 불가사리 첨가 후 CST는 증가하는 경향을 나타내었으나, 조개껍질 첨가 후 CST는 감소하는 경향을 나타내었다. 조개껍질이 불가사리보다 탈수 효율이 나은 결과를 보였으며, 열처리 온도에 대한 효과는 무시할 수 있을 정도로 적게 나타났다. A study on the enhancement of the dewaterability of sewage sludge was carried out by using the sea waste materials as a dewatering aid. It was made from a starfish and a shell by heating at $105∼700 ^{\circ}C$ and centrifuge and belt press were used as a mechanical dewatering process. The moisture content of sludge cake was reduced by 15∼22% (w/w) after addition of the dewatering aid at the dose of 1∼8 g/100mL of digested sludge. CST (capillary suction time) was measured to evaluate the effect of dewatering aid on sludge dewatering properties. CST was reduced after addition of a shell while increased after addition of a starfish. Enhancement of dewaterability after addition of a shell was better than that of a starfish. The heating temperature effect of the dewatering aid on dewaterability was not clear.
이재광(Jae Kang Lee),강지호(Jiho Kang),김한별(Hanbyul Kim),안이슬(Eseul Ahn),오미진(Mijin Oh),조현(Hyeon Jo) 한국인터넷전자상거래학회 2016 인터넷전자상거래연구 Vol.16 No.1
In this paper, we figure out the factors influencing on intention to adopt of wearable devices. We attempt to study influencing factors based on TAM(Technology Acceptance Model) and former researches related to smart devices and information systems. For empirical analysis, we analyzed real users of wearable devices and verified research model and hypotheses through PLS method. There are some findings. First, mobility and self-efficacy are positively significant on perceived usefulness. Second, mobility, self-efficacy and personal innovation are significantly related to perceived ease of use. Third, perceived usefulness and perceived ease of use have positive influence on intention to adopt significantly. The result of this paper can be useful guidelines for wearable device industry and providers.
TAM을 활용한 핀테크 수용에 영향을 미치는 요인에 관한 연구
이재광(Lee, Jae Kwang),김종무(Kim, Jong Moo),이강은(Lee, Kang Eun),윤소라(Youn, So Ra) 한국IT서비스학회 2015 한국IT서비스학회 학술대회 논문집 Vol.2015 No.추계
최근 핀테크 산업은 급속하게 성장하고 있으며, 이러한 성장의 중심에는 모바일 결제 서비스가 핵심적인 역할을 하고 있다. 본 논문은 기술 수용 모형(Technology Acceptance Model)을 활용하여 모바일결제 서비스 초기 수용의도에 영향을 미치는 요인에 관한 연구를 수행하였다. 연구 결과 첫째, 서비스특성 요인인 ’경제성‘과 ’보안성‘은 사용자수용의도에 유 의한 영향을 미치는 것을 확인할 수 없었다. 둘째, 사용자 특성요인인 ‘개인혁신성‘과 사회적 요인인 ‘사회적영향‘이 각각 ’인지된 용이성‘과 ’인지된 유용성‘에 유의한 영향을 미쳤다. 그리고 매개변수인 ’인지된 용이성‘과 ’인지된 유용성‘은 ’모바일결제 서비스 수용의도‘에 유의한 영향을 미쳤다.
핀테크 수용에 영향을 미치는 요인에 관한 연구: 모바일 결제 서비스를 중심으로
이재광 ( Jae Kwang Lee ),김종무 ( Jong Moo Kim ),이강은 ( Kang Eun Lee ),윤소라 ( So Ra Yoon ),조현 ( Hyeon Jo ) 한국지식경영학회 2017 지식경영연구 Vol.18 No.3
Recently, the Fintech industry is growing rapidly, and mobile payment service plays a key role in this growth. The purpose of this study is to investigate factors affecting initial acceptance of mobile payment service using Technology Acceptance Model. In the research model, service-related factors such as economic efficiency and security, user-related factors such as user innovativeness and social factors such as social influence were adopted as external variables, and acceptance intention was introduced as dependent variable. Perceived usefulness and perceived ease of use were selected as mediating variables. The collected data were analyzed using SPSS Statistics v22 and Smart PLS 2.0. The results of the study are as follows. First, service-related factors such as economic efficiency and security did not affect the user acceptance intention. Second, individual innovativeness and social influence have significant effects on perceived usefulness and perceived ease of use respectively. And the perceived usefulness and perceived ease of use, which are mediators, have a significant influence on the acceptance intention of mobile payment service. The results of this study will serve as a useful guide for Fintech industries.
방사선과 폐수산자원을 이용한 하수 농축슬러지 처리에 관한 연구
유대현,이재광,이면주,강호,Yoo Dae-Hyun,Lee Jae-Kwang,Lee Myun-Joo,Kang Ho 한국자원리싸이클링학회 2004 資源 리싸이클링 Vol.13 No.4
본 연구는 하수처리장에서 발생되는 농축슬러지의 처리방법에 대해 진행하였다. 방사선을 15 kGy 조사하였을 때 농축슬러지에 존재하는 일반세균 및 대장균을 99% 이상 제거, 유기물 분해등 소화조에서 일어나는 공정을 대체 할 수 있다. 폐수산자원인 불가사리를 가공하여 제조한 물리개량제를 첨가하여 응집공정의 효율을 높이고 아울러 함수율 10% 이상의 저감효과를 얻을 수 있다. This study was focused on the treatment of thickened sewage sludge. General bacteria and E. coli were disinfected over 99% and organic compounds were decomposed after irradiation. It was suggested that this process can be an alternative for digestion Process. The moisture content in sludge was decreased over 10% (w/w) and the coagulation of sludge particles was enhanced by irradiation at the dose of 15 kGy and addition of sea waste resource (star-fish) as a dewatering aid.
증례 : 신세포암의 바터 팽대부 전이에 의한 급성 재발성 췌장염
강종식 ( Jong Sik Kang ),김명환 ( Myung Hwan Kim ),이성구 ( Sung Koo Lee ),이재광 ( Jae Kwang Lee ),이민정 ( Min Jung Lee ),정민정 ( Min Jung Jung ),김진희 ( Jin Hee Kim ) 대한내과학회 2013 대한내과학회지 Vol.84 No.2
신세포암은 드물지만 바터 팽대부로 전이될 수 있으며, 이로 인해 췌액의 흐름을 방해하여 재발성 급성 췌장염을 유발할 수 있다. 수술로 절제가 어려운 경우 내시경 역행성담췌관 조영술 시술을 통한 주췌관 내로의 스텐트 삽입이 췌장염 치료에 도움이 될 수 있다. Metastasis of renal cell carcinoma to the ampulla of Vater is a rare occurrence. We report a case of acute recurrent pancreatitis caused by metastasis of renal cell carcinoma to the ampulla of Vater. The patient manifested acute recurrent pancreatitis 10 years after a nephrectomy for renal cell carcinoma and was presumed to have obstructive pancreatitis secondary to an ampullary mass. Duodenoscopy revealed an ampullary mass, and the patient was finally diagnosed with metastatic renal cell carcinoma. With insertion of a pancreatic stent via endoscopic retrograde cholangiopancreatography, the acute pancreatitis was resolved. When an ampullary mass is observed in a patient with a history of renal cell carcinoma, the possibility of ampullary metastasis of the renal cell carcinoma should be considered, as this is a potential etiology of acute recurrent pancreatitis. (Korean J Med 2013;84:254-258)