4차 산업혁명 시대··· 우리는 무엇을 해야 하는가?

이재홍 대한전기협회 2017 전기저널 Vol.- No.487

A New Relationship between Ownership–Control Wedge and Overinvestment Practices: Evidence from Korean Business Groups (Chaebol)

이재홍,이재홍,조정은 한국증권학회 2016 Asia-Pacific Journal of Financial Studies Vol.45 No.2

This study examines the effects of controlling shareholders’ ownership–control wedge on firms’ overinvestment practices. In addition, it further investigates the incentive effects of controlling shareholders’ cash flow rights on firms’ overinvestment. We find a non-monotonic relation between controlling shareholders’ ownership–control wedge and a firm’s overinvestment. Specifically, the relation between controlling shareholders’ wedge and overinvestment is significant for certain wedge levels. Thus we conclude that controlling shareholders with certain levels of wedge expropriate minority shareholders’ benefits since the marginal benefit exceeds the marginal cost. We also document that cash flow rights are effective to reduce a firm’s overinvestment to certain levels.

도시지역 한방의료이용자의 질병양상 조사연구

강영우,조태현,김병하,남철현,조남춘,안창수,이재홍 慶山大學校 保健福祉硏究所 1997 保健福祉硏究 Vol.1 No.-

To provide the basic data for improving of curative measures in oriental medicine and for developing of health education and preventive program after understanding of classification of diseases in oriental medicine users, questionnaire interview was carried out with city dwellers, over 20 years old, selected randomly in big cities from 2nd Oct. to 11th Nov. 1995. The results were summarried as follows: 1. In the general characteristics of subjects, the highest portion of each part was 61.2% of female, 25.5% of thirties, 28.5% of high school graduate, 63.3% of middle class and 11.8% of lower class in economic status. 31.9% was housewife, 73.5% was merried and 55.1%, 38.1% came from big or small cities each. 2. By 21 classification of diseases, 19.7% was blood disorders, 17.6% was pregnancy & delivery complications and 15.2% was endorine & nutritional disorders. 3. As for age 22.6% of endocrine & nutritional disorders in twenties, 20.8%, 28.1%, 27.8% of blood & defence mechanism disorders in thirties, forties, sixties each and 24.9% of pregnancy & delivery complications in fifties were the higher than the other groups. 4. By educational level, 47.8%, 30.5% of blood & defence mechanism disorders in uneducated and middle school graduate were the higher than the other groups. 5. As for occupation, 20.8%, 32.9% of blood & defence mechanism disorders in housewives and sales each, were the higher than the other groups. 6. By economic status, 20.2% of blood & defence mechanism disorders in middle and high class, were the higher than the other groups. 7. By marital status, 21.3% of endocrine & nutritional disorders in singles, 22.0%, 25.7% of blood disorders in having partners, were the higher than the other groups. 8. As for living areas, 18.2% of pregnancy & delivery complications in big city dwellers, 21.3% of endocrine & nutritional disorders in town dwellers were the higher than the other groups. The distribution of diseases in oriental medicine users wes very different by chracteristics according the results. So It's important and essential project to improve curative technics and to develop.

D2EHPA 및 Dithizone 에 의한 납의 추출평형

이재홍,남세종 한국화학공학회 1990 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.28 No.3

납 수용액으로부터 di(2-ethylhexyl) phosphoric acid(D₂EHPA)-carbon tetrachloride와 diphenylthiocarbazone(dithizone)-chloroform을 사용한 추출평형을 측정하였다. D₂EHPA일 때 적용한계 부하비 0.05 이하에서 추출화학종은 PbR₂(RH)₂이고 평형상수는 3.0×10^(-3)이었으며, 추출제 dithizone일 때 적용한계 부하비 0.03 이하에서 추출화학종은 Pb(Dz)₂이고 평형상수는 1.2×10^(-1)이었다. 한계 부하비를 넘으면 추출화학종과 평형상수는 D₂EHPA일 때 (PbR₂)_n(RH)₂, 6×10^(-3)이고 dithizone일 때[Pb(Dz)₂]_n, 2.2[㎥/㏖]로 각각 변하였다. 식초산 완충용액을 수용액상에 가하면 추출상수는 다소 감소하였고 유기상에 계면활성제 Span #80을 첨가하면 평형상수는 약간 증가하였다. Measurements of the extraction equilibrium of lead acetate aqueous solution with di(2-ethylhexyl) phosphoric acid (D₂EHPA) in carbon tetrachloride, and diphenylthiocarbazone (dithizone) in chloroform were carried out at 25℃. Over the range of loading ratios less then 0.05 for D₂EHPA and 0.03 for dithizone, the extracted organic metal species and equilibrium constants were found to PbR₂(RH)₂. 3.0×10^(-3) for D₂ZEHPA and to Pb(Dz)₂. 1.2×10^(-1) for dithizone. Upon increasing the loading ratio above the threshold value, the extracted chemical species and equilibrium constants were estimated to (PbR₂)_n(RH)₂. 6×10^(-3) for D₂EHPA, and to [Pb(Dz)₂]_n, 2.2[㎥/㏖] for dithizone. The equilibrium constants were found to decrease upon adding of acetic buffers, and to a little increase by addition of Span#80.

PⅡ-15 잎새버섯 봉지재배 시 자실체 발생을 위한 비닐절개 방법

이재홍,이안수,원헌섭,황세정,정태성,박영학,홍대기 한국버섯학회 2018 버섯 Vol.22 No.1

한의 복진 정량화 연구 - 기능성 소화불량 환자의 복냉 진단을 중심으로 -

이재홍,조수호,고석재,김진성,박재우,Lee, Jae-hong,Cho, Soo-ho,Ko, Seok-jae,Kim, Jin-sung,Park, Jae-woo 대한한방내과학회 2018 大韓韓方內科學會誌 Vol.39 No.4

Objective: This study was designed to investigate the possibility of quantification of the diagnosis of abdominal coldness (AC) in patients with functional dyspepsia (FD). Methods: Forty-four patients with FD were enrolled in this study. Three Korean medicine doctors each randomly examined all abdomens. Diagnosis of AC was made by consensus of at least two of the doctors. Body temperature (oral by digital oral thermometer) and skin temperature (by digital infrared thermal imaging [DITI]) were measured, followed by administration of the Cold and Heat questionnaire (CHQ) and the Instrument of Pattern Identification for Functional Dyspepsia (IPIFD). Results: Of the 44 patients with FD, 22 were assigned to the AC group and 22 to the non-AC group. The concordance rate of diagnosis among the three doctors was 63.6% (28/44), with a ${\kappa}$ of 0.504, indicating means moderate agreement). Neither the oral nor the skin temperatures showed statistically significant differences between the AC and non-AC groups. However, the CHQ scores and 'Simultaneous Occurrence of Cold and Heat Syndromes pattern' scores of the IPIFD were higher in AC group and showed statistically significant differences (p=0.010 and 0.009). Conclusions: This is the first study conducting quantitative measurements of abdominal coldness in patients with FD. Although oral and skin temperature showed no statistical significance between AC and non-AC groups, the concordance rate of diagnosis of AC among the three Korean Medicine doctors was moderate. The CHQ scores and 'Simultaneous Occurrence of Cold and Heat Syndromes pattern' scores of the IPIFD also suggest that diagnosis of AC is relevant to cold and heat patterns, and these questionnaires could be utilized as supportive data for the diagnosis of AC. Further studies should be conducted for the purpose of quantifying and standardizing abdominal examinations in Korean Medicine.

평화는 용서와 사랑하는 실천에서 이루어진다

이재홍 세계기독교통일신령협회 2003 統一世界 Vol.- No.12

아버님께서는 "7개국 즉 한국을 중심삼은 일본, 미국, 영국, 독일, 프랑스, 이태리 등 7개국을 위하여 40년이상 하루에 3번씩 기도하며 준비해왔다"고 말씀하시며 "이들은 서로 원수지간이기 때문에 용서와 사랑하는 마음이 아니면 하나될 수 없으며 세계 평화를 이룰 수 없다"고 말씀하셨다. 나는 미국에 신세진 것을 갚겠다는 심정으로 영계메시지를 전달하고 활동에 임했다. 한 부 한 부 전달할 때마다 참부모님의 섭리를 도운 나라, 우리 한국을 도와준 나라이기에 고마운 마음으로 하나라도 더 성실하게 전달하고자 하는 자세를 갖게 되었다. 새벽 훈독회 시간과 선배들의 간증 및 섭리관에 대하여 충분히 이해할 수 있도록 설명하는 황선조 회장의 말씀을 통해 나는 용서와 사랑으로 접목을 시키고자 노력했다. 사실 미국도 우리 참부모님 앞에선 용서받을 수 없는 씻지 못할 죄를 저지른 나라이다. 아무런 잘못 없는 우리 참아버님을 덴버리라는 십자가를 지우게 한 나라란 점에서 그렇다. 미국 위정자들과 백성은 진정으로 회개하고 하늘로부터 용서를 받아야 한다. 어찌 미국뿐이겠는가? 그러하기에 각 나라에서 온 대표들 840명은 그 국가가 다 책임 못함을 통감하며 열심히 활동하는데 주력했다. 뉴욕은 각종 인종과 여러 국가에서 온 사람들로 구성되어 마치 세계의 축소체와 같은 곳이다. 나는 현장에서 용서와 사랑의 실천이 이루어지는 것을 목격했다. 한국과 북한의 관계, 팔레스타인과 이스라엘의 관계 등 참으로 참부모님이 아니고선 평화가 불가능한 곳이 많다. 우리 모두는 참부모님께서 보여주신 용서와 사랑의 정신으로 가정평화, 교회평화, 세계평화를 이룰 수 있도록 최선을 다해야 할 것이다.

BIM기반 객체 물량산출 기술을 연계한 수량/공사비 연계활용 솔루션의 방향

이재홍 한국BIM학회 2018 한국BIM학회 학술대회 논문집 Vol.2018 No.-

나노급 미세패턴 제어기술의 개발

이재홍,김창교 순천향대학교 부설 산업기술연구소 2004 순천향 산업기술연구소논문집 Vol.10 No.2

We fabricated an alumina membrane with nano-sized pores by anodic oxidation using the aluminum substrates with 99.5% and 99.999% purity. The purity and surface roughness of aluminum substrate affects fabrication of alumina membrane with nano-sized pattern. The aluminum substrates with 99.5% purity was anodized after the processes of pressing, mechanical polishing, thermal oxidation, chemical polishing, and electrochemical polishing, but the aluminum substrates with 99.999% purity was anodized after the process of electrochemical polishing. We controlled the diameter of nano-sized pores, the cell size of pores, and the thickness of barrier layer by control of voltage and the thickness of alumina membrane with nano-sized pores by control of current. The nano-sized pores with the pore size of 50~200㎚, the cell size of 10~50㎚ and the thickness of 5~10㎛ were obtained. Even through the elecrochemical polishing was used for the aluminum substrate with 99.999% purity, the same characteristics as the aluminum substrate with 99.5% purity was obtained. The pores of alumina membrance with the stucture of two-channel and the rough surface prepared by fixed voltage method was changed to the structure of one-channel and the flat surface after pore widening precess.

혈관성치매의 치료

이재홍 대한신경과학회 2003 대한신경과학회지 Vol.21 No.5