치아회분과 석고혼합제제 매식후 Digital Subtraction Radiography에 의한 골량 변화의 평가

김재덕,김광원,조영곤,김동기,최의환,Kim Jae-Duk,Kim Kwang-Won,Cho Yaung-Gon,Kim Dong-Kie,Choi Eui-Hwan 대한영상치의학회 1999 Imaging Science in Dentistry Vol.29 No.2

Purpose : To assess the methods for the clinical evaluation of the longitudinal bone changes after implantation of tooth ash-plaster mixture into the defect area of human jaws. Materials and methods : Tooth ash-plaster mixtures were implanted into the defects of 8 human jaws. 48 intraoral radiograms taken with copper step wedge as reference at soon, 1st, 2nd, 4th, and 6th week after implantation of mixture were used. X-ray taking was standardized by using Rinn XCP device customized directly to the individual dentition with resin bite block. The images inputted by Quick scanner were digitized and analyzed by NIH image program. Cu­equivalent values were measured at the implanted sites from the periodic digital images. Analysis was performed by the bidirectional subtraction with color enhancement and the surface plot of resliced contiguous image. The obtained results by the two methods were compared with Cu­equivalent value changes. Results : The average determination coefficient of Cu-equivalent equations was 0.9988 and the coefficient of variation of measured Cu values ranged from 0.08~0.10. The coefficient of variation of Cu-equivalent values measured at the areas of the mixture and the bone by the conversion equation ranged from 0.06 ~0.09. The analyzed results by the bidirectional subtraction with color enhancement were coincident with the changes of Cu-equivalent values. The surface plot of the resliced contiguous image showed the three dimensional view of the longitudinal bone changes on one image and also coincident with Cu-equivalent value changes after implantation. Conclusion : The bidirectional subtraction with color enhancement and the surface plot of the resliced contiguous image was very effective and reasonable to analyze clinically and qualitatively the longitudinal bone change. These methods are expected to be applicable to the non-destructive test in other fields.

토양 방선균 N-29 배양 여액의 생태계교란 식물 돼지풀 방제효과

김재덕,김영숙,곽화숙,김혜진,이윤미,고영관,박기웅,최정섭,Kim, Jae-Deok,Kim, Young-Sook,Kwak, Hwa-Sook,Kim, Hye-Jin,Lee, Youn-Me,Ko, Young-Kwan,Park, Kee-Woong,Choi, Jung-Sup 한국잡초학회한국잔디학회 2018 Weed & Turfgrass Science Vol.7 No.3

토양 방선균 Streptomyces scopuliridis KR-001의 개량 균주인 N-29 균주 배양 여액의 돼지풀에 대한 방제효과를 온실 및 포장조건에서 수행하여 돼지풀 방제제 후보소재로서의 가능성을 검토하였다. N-29 균주 배양 여액은 온실조건에서 돼지풀초 중 후기 경엽처리 시 처리된 농도범위에서 대부분 완전 방제되었으며, 자연상태에서 발생한 돼지풀에 대해서도 매우 탁월한 방제효과를 나타내었다. 선발 균주 N-29 배양 여액의 돼지풀에 대한 살초특성은 매우 속효성일 뿐만 아니라 약효지속기간도 매우 길게 유지되었으며, 외형적으로 발현되는 주요 증상으로는 처리 초기에 황화 증상이 발현되었다가 고사로 진행되어 궁극적으로 낙엽화되어 사멸되었다. 토양 방선균 N-29 균주는 친환경적인 생태계교란 광엽잡초 돼지풀 방제제로서 유용하게 활용할 수 있을 것으로 기대된다. We isolated Streptomyces scopuliridis KR-001 that produced herbicidal active metabolite(s) against several grass and broad leaf weeds. In this study, potential as natural herbicide of mutant N-29 broth filtrate of S. scopuliridis KR-001 was investigated to Ambrosia artemisiifilia in a greenhouse and field condition. The broth filtrate of mutant N-29 by foliar application showed a strong herbicidal activity to A. artemisiifilia with leaf stage in a greenhouse condition. Also, field trial of foliar application within treatment range had effectively controlled with early and middle stage of A. artemisiifilia at the natural habitats. Phytotoxic symptoms of mutant N-29 broth filtrate by foliar application were wilting and discoloration, and burn-down of leaves and finally plant death. These results suggest that mutant N-29 broth filtrate is considered possible as a natural herbicide for controlling environmentally friend to invasive alien plant such as A. artemisiifilia and may provide a new lead molecule for a more efficient herbicide.

양성종양과 악성종양

김재덕,김형식,Kim, Jae-Deok,Kim, Hyeong-Sik 대한치과의사협회 1989 대한치과의사협회지 Vol.27 No.8

Morpho-anatomical Characteristics on Spikelet Filling of Different Tiller Orders in Rcie

김재덕,비 에스 벨가라,Kim, Jae-Duk,Vergara, B.S. The Korean Society of Crop Science 1991 Korean journal of crop science Vol.36 No.6

분얼력이 서로 다른 일본형, 인도형, 통일형, Java형, Hybrid등 8개 품종 분얼경의 해부생태학적 특성과 수량 및 수량구성요소를 비교검토하기 위해 국제미작연구소에서 실험을 실시하였다. 1. 1차 분얼의 시작은 일본형 벼는 이앙후 12-14일, 인도형 벼는 9-ll일, 기타품종은 8-l0일 경에 시작되었으며 2차 분얼은 1차 분얼후 7일 (Hybrid)-14일 (SR14453)로 품종간 특성은 1차 분얼과 비슷한 경향이었다. 또한 분얼경수는 1차 분얼경은 4(SR14453)-8개(IR30), 2 차는 3 (SR14453) -20개 (IR30) 이었다. 2. 분얼기간은 21일 (IR14453)-65B (IR30)이 소요되었고 출수는 단기간(6-32일)내에 끝나 생육기간이 다양하였으며 주간의 출수는 밀양 83 호와 운봉벼에서만 가장 먼저 출수하였다. 3. 이삭목의 대유관속수는 품종에 따라 다양하였으며 IR30, 밀양 8003, Rewa, Hybrid 벼는 대유관속수가 소유관속수보다 많았으나 IR47705, Silewah, 운봉벼, SR14453은 반대 의 경향이었다. 4. 이삭목의 대유관속수의 감소율은 주간과 1차 분얼경간에 0(SR14453)-3.0개(Hybrid)로 품종간 차이가 현저하였으며 일반적으로 출현이 빠른 분얼경은 늦은 것보다 유관속수가 많았으나 품종에 따라 차이가 없는 것도 있었다. 5. 분얼경간 수량특성은 임실율이나 천립중은 분얼순서와 큰 차가 없었으나 수당입수의 차가 크기 때문에 수량은 주간에 가장 많았고 1차 분얼경, 2차 분얼경 순으로 감소하는 경향이었으며 주간과 1차 분얼경은 2차 분얼경에 비해 초장, 수장, 엽면적이 크고 유관속의 수가 많았다 . 6. 이삭목의 유관속수는 수당입수 및 수량과 고도의 정의 상관을 보였으나 임실률과 천립중과는 유의성이 없었으며 수당입수는 분얼시기에 따라 부의 상관이 있었으나 출수시기와는 품종간 차이가 인정되었다. Greenhouse experiments were conducted at the International Rice Research Institute during the 1989 dry season to investigate varietal differences in morpho-anatomical characters affecting spikelet filling in different tiller orders. There were varietal differences in tiller initiation and heading dates, and tiller duration. The main culm bad competitive advantage over the other tillers. The maximum contribution to filled spikelet weight was made by primary tillers in low tillering cultivars and by secondary tillers in high tillering cultivars. The reduction in inner vascular bundle (IVB) by tiller orders and the namber of IVB and outer vascular bundles (OVB) varied amop.g cultivars. The number of IVB in the peduncle of IR30, Rewa and Hybrid was more than OVB but in IR47705, Silewah, Unbongbyeo and SR14453, OVB was more than IVB. Early formed tillers produced more IVB than the late formed tillers. The number of IVB was positively correlated with number of spikelet and filled spikelet weight, however percent of filled spikelet did not show significant differences as well as 1000 spikelet weight in all types of cultivars.

불소계 신냉매의 제조

김재덕,Kim, J.D. 대한설비공학회 1996 설비저널 Vol.25 No.6

필수적인 구내촬영법

김재덕,Kim, Jae-Deok 대한치과의사협회 1980 대한치과의사협회지 Vol.18 No.8

한의학 기초 고론

김재덕,Kim, Jae-Deok 대한한약협회 1998 大韓漢藥 Vol.2 No.-

연구발표논문초록 : 젖은 벽탑에서 브롬화수소의 흡수에 관한 연구

김재덕,전해수,이윤용 ( JAE DUCK KIM,HAE SOO CHUN,YOON YONG LEE ) 한국화학공학회 1981 추계총회초록집 Vol.- No.-

한의학 기초 고론

김재덕,Kim, Jae-Deok 대한한약협회 2000 大韓漢藥 Vol.4 No.-

Digora$\textregistered$에서 정량영상의 특성에 대한 평가

김재덕,Kim Jae-Duk 대한영상치의학회 1999 Imaging Science in Dentistry Vol.29 No.2

Purpose: To clarify the usefulness and the limitation of Digora system/sup (R)/ by evaluating the physical characteristics as the quantitative image on Image Plate(Ip). Materials and Methods: Radiograms were taken by Heliodent MD(Siemens Co.. Germany) with the image plate for adult. Cu-step wedge as reference material. and three pieces of dry mandibular bone. Image analysis was performed by single color enhancement. density measurement with histogram. The relationship between the exposure conditions and the distribution of the pixel values of the image. the variation of pixel values of each step of Cu-step wedge at two different area and Cu-equivalent value of three pieces of dry mandibular bone measure by the conversion equation. Results: There was no linear relationship between the exposure condition and the average pixel value of the image. of which the distribution was not even. The pixel value differences between the center portion and the periphery were ranged from 60 to 70 in vertical plane and from 15 to 26 in horizontal plane. Two plot profile formed at two different areas of the Cu-step wedge were different. The measured Cu-equivalent values showed the discrepancy among the times of measurement. Conclusion: As above results. Image Plate(Ip) of Digora system/sup (R)/ showed the limitation as the quantitative image. The physical property of IP was expected to need to be compensated for the quantitative evaluation of the bone or others