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지역학으로서의 독일학 육성을 위한 정보자료의 디지털화와 활용방안에 관한 연구
최병진,정동규,천미애,남유선 한국독어독문학회 2003 獨逸文學 Vol.88 No.-
In dieser Arbeit wurde vor allem versucht, den Blick auf zwei Punkte zu richten: Erstens sollte das Forschungsvorhaben, das im Rahmen eines zweija¨hrigen Projekts unter finanzieller Unterstu¨tzung des Koreanischen Research Foundation (KRF) durchgefu¨hrt wurde, in grobem Abriss vorgestellt werden. Zweitens werden die Probleme skizziert, die wa¨hrend der Durchfu¨hrung des Projekts auftauchten, und aus denen sich schließlich unmittelbar einige Verbesserungs- vorschla¨ge ergeben. Das Projekt hatte die Aufgabe, ein auf digitalisierten Daten basierendes Informationssystem u¨ber Deutschland zu erstellen. Das System der Wissenschaftsinformationen, das in der vorliegenden Arbeit vorgestellt wurde, wird beispielsweise aufgrund seiner umfangreichen Informationsdaten dem Fach Germanistik zur weiteren und vertiefenden deutschlandeskundlichen Forschung von großem Nutzen sein. Daru¨ber hinaus aber kommt es auch den Lehrenden zugute, da ihnen dann ein vielseitiges und reichhaltiges Lehrveranstaltungsmaterial als Veranstaltungsthemen zur Verfu¨gung steht. Um ein solches Wissenschaftssystem der Deutschlandforschung zu erstellen und weiter zu entwickeln, wird jedoch nicht nur vie1 Zeit, sondern eine sta¨ndige Aktualisierung der Datenbank no¨tig werden. Um diese Aufgaben zu bewa¨ltigen, sollten mo¨glichst viele Germanisten fu¨r das Projekt zur Verfu¨gung stehen. Zurzeit findet das Internet im privaten und o¨ffentlichen Bereich breite Anwendung wie noch nie zu vor, und diese Tendenz wird sich noch versta¨rken. Forscher suchen und sammeln Informationen anhand des Internets. So nimmt es im Forschungsleben als Forschungswerkzeug einen wichtigen Platz ein. In Zukunft wird sich der Service im Bereich des Netzwerks weiter entwickeln/verbessern. Dies bedeutet fu¨r die Forscher eine Chance im Hinblick auf die Zukunft der Forschung, wenn sie gemeinsam ein wissenschaftliches Kooperationssystem entwickeln, um Wissen unter einander auszutauschen.
Anisotropy of the Wear and Mechanical Properties of Extruded Aluminum Alloy Rods (AA2024‑T4)
Cheon Myeong Park,JeKi Jung,Byung Chul Yu,박용호 대한금속·재료학회 2019 METALS AND MATERIALS International Vol.25 No.1
The anisotropy of the wear and mechanical properties of extruded aluminum alloy rods (AA2024-T4) were investigated byball-on-disk wear testing, hardness and tensile testing, optical microscopy and field-emission scanning electron microscopy,and electron backscatter diffraction. The microstructure, particularly the grain size, grain morphology, and distribution ofintermetallic compounds, differed according to the extrusion direction. The results show that the extruded aluminum alloyrod exhibits anisotropic wear and mechanical properties because of this microstructural anisotropy effect. The tensile testsshowed that the yield strength, ultimate tensile strength, and elongation differed according to the extrusion direction. Itwas confirmed that the yield strength and ultimate tensile strength were the highest in the longitudinal of the specimens. In the hardness and thermal property testing, the transverse specimens showed the highest hardness, thermal conductivity,and specific heat capacity. In wear testing, the wear rate and friction temperature in each direction under equal wear conditionsdiffered because of the microstructural anisotropy effect. As the vertical load and linear velocity were increased inall directions, the wear behaviors of abrasion wear and small delamination, adhesion wear and delamination, galling, andseizure occurred in sequential order. However, the point at which the wear behavior changed differed for each direction. Thetransition of wear behavior occurred more slowly for transverse specimens than those of the other two directions (LD, 45°).The anisotropy of the wear and mechanical properties of extruded aluminum alloy rods (AA2024-T4) were investigated byball-on-disk wear testing, hardness and tensile testing, optical microscopy and field-emission scanning electron microscopy,and electron backscatter diffraction. The microstructure, particularly the grain size, grain morphology, and distribution ofintermetallic compounds, differed according to the extrusion direction. The results show that the extruded aluminum alloyrod exhibits anisotropic wear and mechanical properties because of this microstructural anisotropy effect. The tensile testsshowed that the yield strength, ultimate tensile strength, and elongation differed according to the extrusion direction. Itwas confirmed that the yield strength and ultimate tensile strength were the highest in the longitudinal of the specimens. In the hardness and thermal property testing, the transverse specimens showed the highest hardness, thermal conductivity,and specific heat capacity. In wear testing, the wear rate and friction temperature in each direction under equal wear conditionsdiffered because of the microstructural anisotropy effect. As the vertical load and linear velocity were increased inall directions, the wear behaviors of abrasion wear and small delamination, adhesion wear and delamination, galling, andseizure occurred in sequential order. However, the point at which the wear behavior changed differed for each direction. Thetransition of wear behavior occurred more slowly for transverse specimens than those of the other two directions (LD, 45°).
Cheon, Myeong-Sook,Yoon, Tae-Sook,Yasukawa, Ken,Yu, So-Yeon,Kim, Seung-Ju,Choi, Go-Ya,Moon, Byeong-Cheol,Lee, A-Yeong,Choo, Byung-Kil,Kim, Ho-Kyoung The Korean Society for Applied Biological Chemistr 2009 Applied Biological Chemistry (Appl Biol Chem) Vol.52 No.2
The roots of both Aralia continentalis and Angelica biserrata, known as 'Dokwhal' in Korea, have been used widely as a traditional oriental medicine to treat inflammation and thrombosis. However, the pharmacological differences between A. continentalis and A. biserrata have not been fully established. In the present study, we investigated and compared the inhibitory effects of 70% ethanolic extracts of A. continentalis (ACE) and A. biserrata (ABE) on the production of inflammatory mediators and secondary swelling from chemically induced ear edema. In RAW264.7 macrophages, both ACE and ABE significantly inhibited the release of nitric oxide, prostaglandin $E_2$, interlukin-lbeta, and tumor necrosis factor-alpha in a dose dependent manner. In addition, the swelling from TPA-induced edema in mouse ears was reduced by ACE and ABE. Overall, ACE showed stronger activities than ABE in vitro and in vivo. Our results indicate that A. continentalis roots possess stronger anti-inflammatory activity than A. biserrata roots.
Possible Applications for Fascial Anatomy and Fasciaology in Traditional Chinese Medicine
Yu Bai,소광섭,Byung-Cheon Lee,Yong Huang,Chun-lei Wang,Jun Wang,Jin-peng Wu,Jing-xing Dai,Janos Palhalmi,Ou Sha,David Tai Wai Yew,Lin Yuan 사단법인약침학회 2010 Journal of Acupuncture & Meridian Studies Vol.3 No.2
Research using medical imaging instruments such as computed tomography and magnetic resonance imaging has led to the proposal that the fascial network distributed over the human body is the anatomical basis for the acupoints and meridians of traditional Chinese medicine. Therefore, we put forward a new theory of anatomy called fascial anatomy. In fascial anatomy, a human body is divided into two major systems. One is the supporting-storing system of unspecialized connective tissues. The other is a functional system. An undifferentiated non-specific connective tissue network, with the participation of the nervous and the immune systems, constitutes the supporting-storing system of the human body. The various differentiated functional cells in the body that are supported and surrounded by the supporting-storing system constitute the functional system. The discipline that studies the supporting-storing system and the mutual relationship between this system and the functional system in a living human body is called fasciaology. The establishment of fascial anatomy and fasciaology opens a new research field in anatomy; consequently, fasciaology will play a significant role in biological medicine and traditional Chinese medical research, as well as future clinical practice.
고성능콘크리트의 폭열방지를 위한 폴리프로필렌 섬유의 적정 혼입량 결정에 관한 연구
유호범,황인성,김사현,이병렬,양성환,한천구 대한건축학회 1999 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.19 No.2
A spalling is defined as the damages of concrete exposed to high temperature during the fire by causing cracks and localized bursting of mall pieces of concrete. It is reported that spalling is caused by the vapor pressure and PP(polypropylene) fiber has an important role in protecting spalling. This paper is dealt with the determination of proper PP fiber contents for spalling resistance of high-performance concrete. According to the experimental results, concrete contained no PP fibers take place in the form of the localized bursting on surface concrete, surface spalling, and the failure of specimens after fire test. However, the concrete contained more than 0.07% of PP fiber does not take place the spalling. Therefore, proper PP fiber contents for spalling resistance of high-performance concrete is though to be more than. It is found that residual compressive strength has 60% of its original strength. Although specimens after exposed at high temperature is cured at water for 28days, they do not recover their original strength.