http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 이재황 (검색결과 139 건)
- 무료
- 기관 내 무료
- 유료
-
상악 및 하악골에 식립된 치근형 골내매식체와 주위골조직의 반응에 관한 조직학적 비교연구
이재황,허성주,조인호 단국대학교 치의학연구소 1991 논문집 Vol.3 No.-
Installation periods of implants in Mx. and Mn., is related to pattern of bone formation. The purpose of this study was to observe histologic response in osseointegration at root formed implanttissue interface at Mx. and Mn., the other is comparison of osseointegration level between Mx. and Mn. at 8 weeks. In this study, unilateral upper & lower molars were extracted in dog. After allowing to heal for 4 months, two kinds of osseointegrated implants Swedevents, Corvents-were inserted in dog. The specimens were treated by conventional method. The interface zones between bone and implant were investiigated using X-rays, light microscope. The following results were obtained from this study. 1. Around titanium implants that were installed in Mx. and Mn., Radio lucencies don't exist. 2. There are not inflammation and mobility of titanium implants that were installed in Mx. and Mn. Most of implant surface are covered by bony tissues, partly by bone-marrow tissues. 3. Titanium implants installed in Mx., in contrast to same implants in Mn., shows more coverage by bone marrow tissue and lack of apposition lamellar bone, which lead to the assumption that bone formation in Mn. is faster than in Mx.
-
-
이재황,김동섭,백무열 경희대학교 생명자원과학연구원 2004 硏究論文集 Vol.23 No.-
김치의 발효과정 중의 품질의 변화에 대하여 측정한 결과 온도가 5℃에서 20℃로 높아질수록 숙성속도가 빠르고 발생한 gas의 양도 많았지만, 일정기간 통안 발효가 진행된 후에는 gas의발생량이 줄어들었다. pH와 환원당량은 gas가 발생하는 특성과 유사하게 발효초기에만 급격히 떨어지고 발효가 진행될수록 변화가 적어지는 특성을 보였으나, 온도에 따른 최종측정치의 변화는 보이지 않아 gas가 발생하는 특성과의 차이를 보였다. 산도의 증가 형태 역시 gas의 증가 형태와 매우 유사하게 온도가 높아질수록 숙성속도가 빨라졌지만 최종 산도의 값은 각 온도별로 큰 차이를 보이지 않았다. 총균수는 gas 발생량의 변화와 비례관계는 보이지 않았지만 gas의 생성속도가 느려졌을 때 그 수가 줄어들었고 숙성 중 젖산균수의 변화는 총균수의 변화와 매우 유사한 경향을 보였다. 초기 젖산균수가 급상승하여 비슷한 수준을 유지할 때 gas는 초기젖산균수에 맞춰 증가하다가 젖산균수가 비슷한 시기일 메에도 젖산균의 증식이 계속되어 비교적 gas의 증가가 큰 폭으로 증가하였다. Effect of gas on quality of Kimchi was investigated at different fermentation temperatures. During Kimchi fermentation, the amount of gas, total numbers of viable cells, numbers of lactic acid bacteria and acidity increased but pH and reducing sugars decreased in all temperatures. The amount of gas increased with increasing fermentation temperature but the final volume of gas was not significantly different. Acidity, reducing sugars and pH showed similar patterns with gas production. The amount of gas was not depend on total numbers of viable cells but highly influenced by the numbers of lactic acid bacteria. This study provides the fundamental information on the relationship between fermentation temperature and shelf-stability of Kimchi.
-
-
새만금 경축순환농업단지의 적정 가축 사육두수와 조사료 재배면적의 관계 분석
이재황,이승헌,최은희,김병기,Lee, Jae-Hwang,Lee, Seung-Heon,Choi, Eun-Hee,Kim, Byeong-Ki 한국관개배수위원회 2011 한국관개배수논문집 Vol.18 No.1
The suitable area of forage crop field was calculated under the assumption that all of the liquied manure would be used to nutrient of crops at the Saemangeum crop-livestock complex. At first, Korean cattle and dairy cattle were selected and swine was excluded becausr of high pollution availability. When forage crop was calculated from nutrient amounts of manure of livestocks and standard applicable fertilizer quantity to the selected forage crops, 232ha (278ha including infrastructure part) was determined to be appropriate in case of 2500 heads of Korean cattle and 300 heads of dairy cattle were raised. From the result by that calculated ares (232ha) to forage crop feeding could be possible to the Korean cattle and dairy cattle feeding using TDN index, more than 217ha of forage crop fields would be satisfied nutritionally.
-
이재황,박영은,임병철,김주신,최종현,강태선,이진하,권기성 한국식품위생안전성학회 2017 한국식품위생안전성학회지 Vol.32 No.1
Foreign materials with a variety of types and sizes are found in food; thus, extraordinary efforts and various analytical methods are required to identify the types of foreign materials and to find out accurate causes of how they unintentionally enter food. In this study, human, cow, pig, mouse, duck, goose, dog, and cat were chosen as various types of animal hairs because they can be frequently incorporated into food during its production or consumption step. We morphologically analyzed them using stereoscopic, optical, SUMP method, and scanning electron microscopes, showing differences in each type. In addition, X-ray fluorescence spectrometer (XRF) was used to analysis chemical compositions (11Na~92U, Mass%) of samples. As a result, we observed that mammalian hairs were mainly composed of sulfur. Organic compounds of samples were further analyzed by fourier transform infrared spectroscopy (FT-IR) that can compare spectra of given materials; however, this method did not show significant differences in each sample. In this study, we suggest a rapid method for the identification of the causes and types of foreign materials in food.
-
상악 및 하악골에 식립된 치근형 골내매식체와 주위골조직의 반응에 관한 조직학적 비교연구
이재황,허성주,조인호,Lee, Jae-Hwang,Hur, Song-Ju,Cho, In-Ho 대한치과보철학회 1991 대한치과보철학회지 Vol.29 No.2
Installation periods of implants in Mx. and Mn., is related to pattern of bone formation. The purpose of this study was to observe histologic response in osseointegration at root formed implant-tissue interface at Mx. and Mn., the other is comparison of osseointegration level between Mx. and Mn. at 8 weeks. In this study, unilateral upper & lower molars were extracted in dog. After allowing to heal for 4 months, two kinds of osseointegrated implants Swedevents, Corevents-were inserted in dog. The specimens were treated by conventional method. The interface zones between bone and implant were investiigated using X-rays, light microscope. The following results were obtained from this study. 1. Around titanium implants that were installed in Ma and Mn., Radio lucencies don't exist 2. There are not inflammation and mobility of titanium implants that were installed in Mx. and Mn. Most of implant surface are covered by bony tissued partly by bone-marrow tissues. 3. Titanium implants installed in Mx, in contrast to same implants in Mn., shows more coverage by bone marrow tissue and lack of apposition lamellar bone, which lead to the assumption that bone formation in Mn. is faster than in Mx.
-
이재황,최석원,채상정,서만철 공주대학교 문화재보존과학연구소 2003 문화재과학기술 Vol.2 No.1
한국은 오랜기간 발전된 도자문화를 지니고 있다. 한국의 도예가들은 독창적인 문화를 토대로 활동적이며 예술적인 도자기를 생산해왔다. 14세기에 이르러 9세기의 고려청자를 바탕으로한 조선시대의 독특한 분청사기가 나타났으며 분청사기 가운데 철화분청사기는 백토분장위에 철분의 안료를 사용하여 붓으로 그림을 그려 제작하였다. 철화분청사기는 주로 15세기 후반부터 16세기 전반에 걸쳐 제작되었으며 이들은 민예적인 특성을 잘 반영하여 지역별로 서로 다른 독특한 양식으로 발달함으로써 계룡산 지역에서는 "계룡산 분청"이라는 별칭으로 불리었으나 현재는 철화분청사기의 제작기술이 소멸된 상태이다. 철화분청사기의 재현을 위해 철화분청사기편을 실험한 결과, 철화안료는 화강암내의 산화광물인 자철석으로 이루어져 있으며 이것은 석간주로 불리운다. 또한 철화분청사기편을 1230°C정도의 고온에서 소성한 결과 태토가 잘 견디었으며 사라진 광택이 다시 빛을 발하였다. 따라서 계룡산 분청의 재현 및 발전을 위해 문헌에 따른 채굴장소에 대한 연구가 이루어져야 할 것이다. Korea has a long and flourishing history of ceramics. Korean potters have established a dynamic artistic civilization rooted on its unique ceramic culture. In 14th century, they had created Buncheong, based on the tradtional Korean ceramics such as the Koryo celadons of 9th century. Among the Buncheongs, Chulhwa-Buncheong ceramics were produced by using iron oxide (ferric, ferrous) as the drawing stain. A fragment of a Chulhwa-Buncheong, with a manufacturing year stamp of 1492, was found in a kiln at mountain Kyeryong located in central Korea. Chulhwa-Buncheong ceramics, which have often abstract drawings on them, have been recognized worldwide for their artistic quality. But unfortunately, the production technique of Chulhwa-Buncheong has been lost. To provide the technical criteria for systematic restoration of Chulhwa-Buncheong, the iron oxide (ferric ferrous) material used for the drawings was explored. The iron oxide used for Chulhwa-Buncheong is the magnetite (Fe_(3)O_(4)). At 1230°C, it changes black color. With no flow effect at high plasticity level, it becomes dark color of chestnut and form ferrous crystal. As described in the Choseon Dynasty's memorandum of King Young Cho's period. the iron oxide was obtained traditionally from natural materials such as Seokanju, a special kind of minerals in granite. It is concluded that the magnetite from the rock cave which had been used as the drawing stain of Chulhwa-Buncheong can be used for the restoration of the Chulhwa-Buncheong.
-
-
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
