요추 추간판탈출증을 동반한 당뇨병 환자에 대한 한방 치험 1례

한동근,최아련,정유진,강아현,서혜진,성재연,이형철,엄국현,송우섭,Han, Dong-geun,Choi, A-ryun,Jung, You-jin,Kang, Ah-hyun,Seo, Hye-jin,Sung, Jae-yeon,Lee, Hyung-chul,Eom, Gook-hyun,Song, Woo-sub 대한한방내과학회 2017 大韓韓方內科學會誌 Vol.38 No.5

Objective: The aim of this study was to evaluate the effects of traditional Korean medicine as a treatment for diabetes mellitus with herniated intervertebral lumbar discs. Method: The patients were treated with the herbal medicine Jungso-tang to reduce serum glucose (FBS/PP2hrs) and HbA1c to improve diabetes mellitus in parallel with lumbar herniated intervertebral disc treatment. Results: The treatment with Jungso-tang decreased the serum glucose (FBS/PP2hrs) and HbA1c levels. Conclusion: Korean medicine may be an effective treatment for diabetes mellitus with lumbar herniated intervertebral disc.

안면신경마비 환자에 대한 한방 치험 1례

한동근,강아현,서혜진,성재연,오주현,이유라,이형철,엄국현,송우섭,Han, Dong-geun,Kang, Ah-hyun,Seo, Hye-jin,Sung, Jae-yeon,Oh, Ju-hyun,Lee, Yu-ra,Lee, Hyung-chul,Um, Guk-hyun,Song, Woo-sub 대한한방내과학회 2018 大韓韓方內科學會誌 Vol.39 No.2

Objective: This study is designed to evaluate the effects of Korean medicine treatment for facial nerve palsy. Method: The patient was administered Korean medicine treatment, including acupuncture, pharmacopuncture, and herbal medicine. We used the House-Brackmann Grading System and Yanagihara's Unweighted Grading System to assess the symptoms of facial nerve palsy. Results: The patient's House-Brackmann grade was reduced from grade IV to grade II, and Yanagihara's grade was increased from 19 to 32. The patient's symptoms, which were facial pain, facial asymmetry, reduced wrinkling forehead, incomplete closing eye, epiphora, and tinnitus, improved during the hospitalization. Conclusion: This study shows that Korean medicine treatment may be an effective treatment for facial nerve palsy.

Plastic 광섬유용 GRIN ROD의 제조 및 그 광학특성에 관한 연구

한동근,임승순,김정엽,Han, Dong-Geun,Im, Seung-Sun,Kim, Jeong-Yeop 한국섬유공학회 1985 한국섬유공학회지 Vol.22 No.5

The photocopolymerization of methyl methacrylate(MMA) with vinyl benzoate(VB), using benzoyl peroxide(BPO) as an initiator, was carried out with UV irradiation to obtain a transparent GRIN rod. The resulting GRIN rod has a parabolic gradient of refractive index in the region near the center axis(radius Rc), and index-distribution constant A and the normalized radius Rc were measured by the reduction rate of an image and the view field of the rod lens. An increase in monomer feed ratio, MMA/VB(wt/wt) ranging from 2.5 to 5.0 results in the increase of A but the decrease of Rc. The value of A grew very high at BPO=1.0wt% and MMA/VB=4.0, and the value of Rc monotonically decreased with the BPO concentration. Elevation of the polymerization temperature caused the decrease in both A and Rc. The index distribution from the center to the periphery showed a similar shape, regardless to the sample compositions. The GRIN rod shows convex lens characteristics which are necessary properties in use of imaging and light-focusing devices.

Venture Business, Subsidy Policy and Income Distribution

한동근(Dong-Geun Han) 한국경제통상학회 2003 경제연구 Vol.21 No.2

이 연구는 최근 활발하게 벌어지고 있는 정부의 벤처기업지원 정책이 계층간 소득분배에 미치는 영향을 분석한다. 위험회피적 기업가를 가정한 본 연구의 모형은 벤처기업지원정책이 전체적인 국민소득을 높이는 효과는 있으나 소득분배는 왜곡할 가능성이 매우 높다는 것을 보여준다. 정부의 벤처지원정책은 벤처기업의 기대수익을 인위적으로 높여 위험회피자들을 전통산업 부문에서 벤처부문으로 끌어들인다. 그러나 벤처기업의 특성상, 진입한 다수의 기업 들이 실패하는데, 그 결과 실패자들은 저소득 계층으로 전락한다. 반면에 성공한 소수의 기업 은 국민소득을 높이는 작용을 한마. 로렌즈 (Lorenz) 곡선으로 파악한 개인간 소득분배도 중 간계층이 앓아짐으로 인해 악화된다. 이러한 결과는 정부의 벤처지원금 (subsidy) 를 사후적으로 제거한 분석, 즉 ex post 분석 결과에서도 유효한 것으로 나다났다. This paper shows that the venture-investment promotion policy is very likely to worsen the income distribution, although it increases the national income as a whole. The government subsidy to the venture business makes the expected profits from the venture business look higher, which attracts risk-averse agents to the venture out of the traditional non-venture sector. Although most of the new entrants into the venture sector fail due to the very slim probability of success, the amount of income generated by those who are successful more than countervails the income losses of those who fail. This result is true even for the case where the subsidy is taken back ex post from the venture sector. The paper also shows that income distribution measured by the Lorenz curve and the interpersonal variance of income is aggravated by the policy. The middle income class who are in non-venture sector shrinks, while more agents get attracted to the venture sector. And only a small fraction of those joining the venture sector enjoys the high returns, with rest of them earning much less income than those in the non-venture sector.

대구지역 안경테 산업의 생산성 및 효율성 변화 분석

한동근 ( Dong Geun Han ),박병규 ( Byeong Kyu Park ) 한국경제통상학회 (구 한국경상학회, 한국국민경제학회) 2009 경제연구 Vol.27 No.2

On the Impacts of Regional Trading Arrangements on FDI

Dong-Geun Han(한동근),Taek-Dong Yeo(여택동),Young-Man Yoon(윤영만),Shiyong Yoo(유시영) 한국무역학회 2004 한국무역학회 세미나 및 토론회 Vol.2004 No.8

The paper examines the impacts of the Northeast Regional Trading Arrangements (RTAs) on inward FDI to Korea. We first study the theoretical background of the relations between RTAs and FDI. Secondly, we analyze the major determinants of the inward FDI to Korea. Finally, a prediction about how the China-Japan-Korea FTA (hereinafter (CJK FTA) will affect the inward FDI to Korea is provided. Prior literature shows that there are three motives for FDI; horizontal integration, vertical integration, and advantage for product varieties. Depending upon which characterthe inward FDI to Korea has, the impact of the China-Japan-Korea FTA on the inward FDI will differ. With the theoretical background, we implemented an empirical study. To characterize the inward FDI to Korea, we constructed a fixed effect regression model where inward FDI was regressed on wage and interest differentials between home and source countries, exchange rates, GDP, trade volume, and the number of labor dispute. Two data sets were used: one consisting of the inward FDI by source country (1980-2003), and the other consisting of the inward FDI by sector and source country (1998-2003). Our empirical results show that the inward FDI to Korea is of both horizontal and vertical character. We argue that the China-Japan-Korea FTA is very likely to encourage FDI inflows to Korea. It is empirically found that the trade volume variable has a positive impact on the inward FDI in all industries, implying that trade and FDI are complements in the Korean industries. Empirical results also show consistent negative signs on real wage differential variable across industries. It is expected that the elasticity of the inward FDI with respect to the real wage differential is going to be much higher once the CJK FTA is formed. It is also expected that the negative effect of labor dispute on the inward FDI will aggravate when the FTA is created. A channel through which FTA may promote the FDI to Korea is growing domestic market size. FTA in general prompts economic growth through enlarged international trade. Therefore, growing consumers' purchasing power under the FTA could attract more FDI into Korea. Whether FTA will discourage or encourage the inward FDI depends on the relative magnitude of positive and negative impacts the FTA will bring. But our temporary verdict is that the CJK FTA is more likely to encourage the inward FDI in general as the Korean labor market is becoming more flexible.

산업 클러스터와 네트워크: 대구 안경테산업의 사례

한동근(Dong-Geun Han),이상엽(Sang-Yeup Lee) 한국경제통상학회 2006 경제연구 Vol.24 No.1

  본 연구는 산업체들이 밀집되어 있다는 것만으로 산업내 수직적ㆍ수평적 네트워크가 형성되고 혁신의 동력이 창출될 수 있는가를 검토한다. 대구 제3공단 안경테제조업체를 대상으로 분석한 결과 반드시 그렇지만은 않다는 것이 발견되었다. 대구 안경테산업 집적지는 네트워크의 형성을 통한 정보의 공유, 상호학습, 혁신촉진적 경쟁이라는 순기능 창출에 실패함으로써 혁신 클러스터로 진화하지 못하고 있다고 판단된다.   본 연구의 시사점은 기업의 집적이라는 물리적 조건도 중요하지만, 입주 업체들 상호간의 네트워킹에 대한 의식과 협력에 대한 문화가 더욱 중요하다는 것이다. 네트워킹 마인드와 문화가 없는 상태에서 정책 인센티브나 강제를 통해 산업집적을 추구하는 것은 혁신클러스터라는 본래의 의도와 다른 자원의 낭비를 초래할 가능성이 높다는 것을 보여준다.   For an industrial cluster to evolve to an innovative cluster, there should be strong networks connecting firms. This study empirically examines whether the mere fact that many related firms conglomerates in a small area automatically guarantees that industrial networks develops well and the firms are interacting each other through the networks.   We took a case of eyeglass-frame cluster in Daegu city for empirical analysis. The study shows that the eyeglass frame firms in general are not actively engaged in network-related activities. But those who are involved in a certain networking activities, such as cooperation and information sharing with universities, research institutes are shown to be more efficient. The study also reveals that networks in eyeglass frame industry are in a very primitive stage. Joint projects for technology development are very rare. Our study suggests that poor networking activities are to blame for the losing competitiveness of the eyeglass frame industry in Daegu.

대구지역 안경제조업체의 효율성분석

한동근(Dong-Geun Han),김종웅(Chong-Ung Kim) 한국경제통상학회 2005 경제연구 Vol.23 No.3

본 연구에서는 DEA기법을 이용하여 안경업체의 효율성을 분석하였다. 분석 결과는 순수 기술적 효율치가 평균 0.48%정도에 불과하다는 것을 보여주었다. 이는 대구지역 안경제조업의 비효율이 대단히 크다는 것을 말하고 있다. 순수 기술적 효율성(pure technical efficiency)을 설명하는 회귀분석의 결과는 노동생산성과 R&D투자가 기술적 효율성을 결정하는 주요 요인이라는 것을 보여주었다. 이 결과는 낮은 효율성을 높이기 위해서는 기술 및 숙련도의 제고를 위한 교육과 훈련의 필요성이 크다는 것을 시사한다. R&D투자도 순수 기술적 효율성에 (+)의 영향을 미친다는 결과는 현재의 영세한 규모를 주어진 환경으로 볼 때 공동연구센터의 설립과 기술혁신프로그램에 정부의 지원이 긴요하다는 것을 의미한다. 본 연구는 기업규모의 영세성에서 발생하는 비효율을 측정하기 위해 규모 효율성(scale efficiency)지표도 추정했다. 추정결과 기업규모가 영세하기 때문에 발생하는 비효율이 존재하는 것으로 확인되었으며, 적정 규모는 자본금 50억원 정도라 추산되었다. Daegu city is known to have the heaviest concentration of optical frame manufacturers in Korea. The Daegu optical industry now is suffering from falling profitability resulted from severe competition with cheap Chinese frames. It is agreed on that we need improvement of efficiency, more R&D investment as well as development of brand value to keep up the competitiveness. We used DEA (Data Envelopment Analysis) to estimate the efficiency of optical industry in Daegu. One hundred thirty three firms were surveyed about inputs, production level, R&D investment, and so on for this study. Our analysis showed the optical industry has much room to improve its efficiency. The pure technical efficiency of the optical industry was estimated to be 0.48 on average, which means that production could have been increased by 52% with the same amount of inputs if the industry has been fully efficient. Our regression results showed that labor productivity and R&D investment are the most important factors in increasing the efficiency. It was found that small sizes of firms also were the sources of the inefficiency. The optimal size of the optical frame manufacturer was estimated to be 5 billion won in capital stock.

메타크릴산 메틸과 벤조산 비닐의 광공중합

한동근(Dong Geun Han),임승순(Seung Soon Im),김정엽(Chung Yup Kim) 한국고분자학회 1984 폴리머 Vol.8 No.5

지가변동의 기대가 요소투입과 생산에 미치는 영향

한동근(Dong Geun Han),남병탁(Pyeong Tak Nahm) 한국지역학회 1998 지역연구 Vol.14 No.2

This paper investigates how the factor inputs of firms are affected by the expectation about land-price increase in the future. We develope a two-factor (land and labor) model, in which expectation about land-price increase plays a key role in determining the "optimal" input level of labor and land. Expecting capital gains from input of the land when land price increases, firms input land up to the point where the marginal productivity of land falls short of the marginal cost of purchasing the land, in order to maximize the "joint-profit". That is, firms have an incentive to use more land than they do when capital gains are not expected. We mean joint-profit by profit in the standard sense plus capital gains. Once the land is input "excessively", the productivity of labor increases and labor is also input more, since land and labor are assumed as complementary in production. This mechanism works in the opposite direction when land price decreases. This paper suggests that land price fluctuation is a major destabilizer of an economy.