해조류 추출물의 발모효과에 관한 C57BL/6의 쥐 실험연구

하원호,박대환,Ha, Won Ho,Park, Dae Hwan 대한두개안면성형외과학회 2013 Archives of Craniofacial Surgery Vol.14 No.1

Background: Recently, substances from seaweeds have been widely used in hair growth solutions, and have been proven to be effective. Seaweeds have been documented to possess hair growth activity; however, no report on the effect of seaweed on hair regeneration has been issued to date. In this study, we investigated which exact substance of hair tonic made by JW-bio and our institute shows effects on hair growth by studying the mechanisms of candidate substances. Methods: The study was conducted to investigate the hair restoring effect of domestic natural substances; we categorized the candidate substances as seaweed, cereal, and herbal medicine. Five experimental groups were included in the study as follows: a saline group, a 50% ethanol group, seaweed group, a cereal group, and a herbal medicine group. Results: Three extracts (seaweed, cereal, and herbal medicine) were administered to C57BL/6 mice for two weeks after depilation. Depilated areas were found to be completely covered with fully grown hair, and the hair re-growth score was highest in the seaweed group. Using a hair analysis system, hair characteristics were measured in all groups on days 10 and 14 after depilation. The width and length of hair follicles were largest in the seaweed group. Groups treated with seaweed showed significantly increased gene expression of insulin-like growth factor-1. Groups treated with all the three extracts showed decreased expression of transforming growth factor-${\beta}1$. Conclusion: Findings from our study suggest that seaweeds possess hair-growth effects and may be useful for the treatment of alopecia in the future.

헤링씨 법칙 비의존성 단안성 윗눈꺼풀처짐증 환자에서 수술 후 생긴 건측의 눈꺼풀처짐증

하원호,이용직,박대환,한동길,심정수,Ha, Won Ho,Lee, Yong Jig,Park, David Dae Hwan,Han, Dong Gil,Shim, Jeong Su 대한두개안면성형외과학회 2013 Archives of Craniofacial Surgery Vol.14 No.1

Background: Correction of unilateral blepharoptosis is unexpectedly difficult because healthy eye is often affected by Hering's law. Methods: We measured changes of marginal reflex distance (MRD1) on the unaffected eyelids between preoperative and 3-month postoperative photographs after ptosis correction. This study analyzed 134 unilateral blepharoptosis patients with ptosis correction from February 2002 to February 2011. Fifty patients among them were negative in Hering's law dependence test. From the preoperative and postoperative photographs the MRD1 of unaffected upper eyelids were measured and adjusted with the average pupil diameter of Koreans. Mean age was 34.4 and male was 30 and female was 20. Average follow-up periods were 14 months. Results: Thirteenth unaffected eyes (26%) showed decreased MRD1, and 3 patients (6%) showed decreased MRD1 value over 1.0 mm. Then 3 patients needed additional operations for correction of preoperatively unaffected but ptotic eyelids. Conclusion: There were no meaningful data statistically in the value of MRD1 in every unaffected eye of the patients and in the difference between preoperative and postoperative MRD1 of groups divided according to severity, causes, and types of operation.

開港後 防糓令實施의 原因에 관한 硏究 (上)

河元鎬(Ha Won-Ho) 한국사연구회 1985 한국사연구 Vol.49 No.-

일본 제국주의의 팽창과 동아시아 ; 일제말 통제경제정책과 물가통제

하원호 ( Won Ho Ha ) 성균관대학교 대동문화연구원 2006 大東文化硏究 Vol.54 No.-

開港後 防穀令實施의 原因에 관한 研究(下)

河元鎬(Ha Won-ho) 한국사연구회 1985 한국사연구 Vol.50·51 No.-

개항기 함경도지역의 풍흉과 원산의 상품유통

하원호(Ha, Won-Ho),민원기(Min, Won-Gi) 고려사학회 2015 한국사학보 Vol.- No.60

개항이후 함경도지역은 경상도 지역에서 미곡을 공급받고 있었다. 더구나 금은광이 개발되고 광산노동자가 증가하면서 미곡수요가 늘어 부산만이 아니라 일본에서까지 수입되고 있었다. 그래서 특별히 풍작인 해를 제외하면 항상적으로 부산지역보다 미가가 높았다. 곡물가격의 결정에는 기후조건이 일차적 원인이었지만 개항이후 곡물의 수출이라는 사회적 조건도 주요 요인이었다. 함경도지역이 주목받았던 것은 양질의 대두가 많이 산출되었기 때문이다. 원산의 배후지였던 함경도의 주된 산출작물은 대두였고, 이 중 원산항을 통한 수출은 생산량의 8할 이상으로 대부분이 일본으로 수출되었다. 대일수출이 증가하고 가격이 등귀함에 따라 농민의 경우에도 생산량의 증가에 힘써 경작면적이 확대되고 있었다. 일본은 조약의 개정과 그 시행과정에서 계속 압력을 가해 일본상인의 개항장외 침투를 강화해 갔다. 일본상인은 종래 개항장객주 등 중간상인을 통하던 유통경로를 줄이며 직접 산지의 상인에게서 곡물을 매집하거나 조선상인과의 관계에서 자금을 선대하는 경우가 많아 조선상인의 일본상인에 대한 예속은 계속 심화되었다. 농민전쟁이후 일본은 종래 영국제 카네킨의 중계무역에서 벗어나 목면을 비롯한 자국산 면제품과 방적사를 수입하여 종래 부농경영의 한 축이던 토포생산을 위축시켰다. 경상도나 전라도의 토포생산은 토포의 대규모 소비지였던 함경도지역을 일본목면에 탈취당하는 등 시장의 축소로 몰락하고 있었다. Traditionally rice was provided by the East coast of Gyeongsang province to Wonsan area and Hamgyeong Province. After the port opening, rice came mainly from Busan. When the number of miners increased with the increase of gold and silver mines after the port opening, the demand for rice also increased. Then more rice was provided from Busan and even imported from Japan. The rice price there was always higher than that of Busan, except in the year of plenty. The primary cause of the abundant or bad harvest was the weather. The Hamgyeong province got attention concerning the grain export after the port opening due to its high-quality soybeans. Soybean was the main crop of Hamgyeong province, which was the support area for Wonsan. The average annual harvest, including some from Gangwon province, reached 90 thousand seok. About 80% of the harvest was exported through Wonsan port, and most of them exported to Japan. With the increasing export and rising price, farmers made efforts to increase the crop by expanding the arable land and improving cultivation method. Japan abandoned intermediate trade after the peasant’s war, and instead imported Japanese cotton and textile products, resulting in the withering of native textile production which was an important support for prospering wealthy peasants. Thus the Hamgyeong province market was captured by the Japanese cotton products and the native textile production in Gyeongsang and Hamgyeong provinces was brought to ruin with the loss of big textile market in Hamgyeong province.

자동차 전동모터 이음부 자동검사장비의 측정 메커니즘에 관한 연구

하원호(Won-Ho Ha),심한섭(Han-Sub Sim),김해지(Hae-Ji Kim) 한국기계가공학회 2022 한국기계가공학회지 Vol.21 No.12

In this study, an automatic electric motor joint inspection equipment is developed to determine good and defective motor products by directly measuring the electric motor joint of the steering system for automobiles. Subsequently, a spectrum analysis is conducted to confirm the noise and vibration characteristics of electric motor joint defects. Sound pressure, loudness, roughness, and sharpness analyses are performed, and the results show that the sound pressure, loudness, roughness, and sharpness values differ based on the type of electric motor defect. The automatic inspection equipment developed in this study verifies that the presence or absence of defects in the electric motor and the defect type can be indirectly predicted.

논문 : 개항후 부산의 대외무역과 유통구조의 변동 - 곡물무역을 중심으로 -

하원호 ( Won Ho Ha ) 수선사학회 2006 史林 Vol.0 No.25

조선후기 變亂과 민중의식의 성장

하원호(Ha Won-Ho) 한국사학회 2004 史學硏究 Vol.- No.75

At the late Chosun dynasty, Korean people had been disturbed by the social changes and uncertainty. Both Whayon(訛言) and Yoyon(妖言) were representing these Situations. The Whayon was indicative of the critic on the Establishment such as the activities of ann-government, a treasonable conspiracy On the other hand, the Yoyon relatively showed the tone of the religion. Using the Budhisattiva's belief(彌信信仰) and Chonggamlok(鄭鑑錄), the Yoyon had developed MinJung(民衆)'s religious belief into the activities of the ana-Establishment, The leaders of MinJung's upheaval usually put these religious believes of people's mobilization, The people's fervent hope of the Utopia closely connected with their consciousness of anti-government The Baekryunkyo(白蓮敎)' rebellion in Ch'ing China was an example They applied religious relief, like the Kupjaekwan(劫災觀) of Bodhisattva's belief, to the weapon of anti-government's thoughts, The Kupjae(劫災) based on the thoughts of people's anti-establishment and actively led them to the uprising, Unlike both China and Korea, the Japanese people did not based on the thoughts of the Bhudhisattva's belief and Chonggamlok. Even though they used the religious thoughts for the uprising, these activities did not developed into the anti-establishment's activities. The Japanese peasant's uprisings was unsuccessful and ultimately admitted the government's authority. The Korean people had been anxious about the fear of the external plunders since the late 16th and early 17th century's national crisis, During the 17 to 18 century, the incidents emphasized peoples' mentality such as the crisis of the external aggression In case of China, Chonjinheo(天地會) made the anti-Manchurian of the Han race Although both Korea and China's historical experiences was different, two peoples severely went through anti-imperial activities and their uprisings based on the anti-imperial consciousness These experiences were not similar to the Japanese, After the Opening Ports of China in 1840, Japan in 1854, Korea in 1876, these three countries included into the World system, However, the opening ports resulted in different situations, such as the imperialism In Japan, the the semi-colony in China, and the Japanese colony in Korea, respectively. These situations were closely connected with the people's different consciousness of the "Western impact" or "Western aggression" among these three countries. Therefore, we argued that the peoples' different responses of the external impact in China, Korea, and Japan had been connected with their historical experiences since 17 to 18 centuries.

해방후 북한의 화폐개혁

하원호 ( Ha Won-ho ) 호남사학회(구 전남사학회) 2017 역사학연구 Vol.67 No.-

1947년 화폐개혁이전까지 북한의 화폐는 소련군 군표의 유통량이 가장 많았다. 통제받지 않는 소련군의 군표발행이 북한의 통화를 불안정하게 했다. 따라서 현실적으로는 군표가 가져오는 문제가 개혁을 강요하기도 했다. 하지만, 1947년 10월 미소공동위원회의 결렬과 함께 토지개혁, 노동개혁을 이미 이룬 북한의 내적 요구가 자본을 국가로 흡수하기 위해 화폐개혁이 요구되었던 측면도 있었던 것이다. 1947년 10월 4일 소련 각료회의는 1947년 12월 1일에서 10일에 화폐교환을 실시할 것을 결정했다. 이를 위해 10월 내내 모든 필요한 조치가 준비되었고, 1947년 12월 6일부터 12일 사이에 교환사업이 마무리 되었다. 화폐교환 사업 이후인 1947년 12월 13일부터는 북조선중앙은행이 발행한 중앙은행권만 화폐로 통용되었다. 교환과정에서 소련인에게는 교환의 물량이 제한되지 않는 등 차별도 있었고 노동자 농민에 비해 상인과 기업가계층의 반발은 있었지만, 과정자체는 순조로이 진행되었다. 사회주의 진입과정에서 흔히 볼 수 있는 사례였다. 소련군의 필요에 의해 발행되는 군표가 아니라 개혁후 조선중앙은행이 통화량을 전체적으로 조절하는 만큼 물가는 수치상으로 상대적으로 안정되었지만, 물가가 사회적 생산력의 발전과 관련있는 만큼 화폐개혁으로만 결정될 수 있는 것은 아니었다. Until the currency reform in 1947, the main currency of North Korea was the Soviet army`s Military Note (gunpyo, 軍票). The indiscriminate currency issuance of the Soviet army made the North Korean currency system unstable. However, there was also internal demand from North Korea, which had already experienced the land reform and the labor reform, in October 1947 with the breakdown of the U.S.-Soviet Joint Committee (美蘇共同委員會). On October 4, 1947, the Soviet Ministerial Council decided to carry out a currency exchange between December 1 and 10, 1947. The currency exchange was completed between December 6 and 12, 1947. From December 13, 1947, only the bank notes issued by the Central Bank of North Korea (朝鮮中央銀行) were used as currency. In the course of the exchange, there were some problems, such as discrimination from the Soviet people, and backlashes in the proprietary classes, but the process went smoothly. After the reform, the Central Bank of North Korea controlled the amount of the currency, so prices remained relatively stable. The prices were not determined only by the currency reform as it relates to the development of social productivity.