성당을 오고 싶도록 만들어야 한다 : 대전교구 천안 원성동본당 주임 김재덕 신부

김재덕,유태근,최주성(사진) 미래사목연구소 2023 사목정보 Vol.16 No.3

한국인의 디지털파노라마 방사선영상에서 하악관에 관한 연구

김재덕,김진수 대한구강악안면방사선학회 2007 Imaging Science in Dentistry Vol.36 No.1

Purpose: To determine the more valuable information to detect the mandibular canal and the mental foramen in panoramic radiographs of a selected Korean population for the implant. Materials and Methods : This study analysed 288 panoramic radiographic images of patients taken at the Dental hospital of Chosun University retrospectively. Indirect digital panoramic X-ray machine (ProlineXC, PLANMECA, Finland) with processing by using Directview CR950^(@) (Kodak, U.S.A.) and Direct digital panoramic X-ray machine (Promax, PLANMECA, Finland) were used for all exposures. All images were converted into Dicom format. Results : The common position of the mental foramen was in line with the longitudinal axis of the second premolar (68.1%). The mental foramen was symmetrical in 81.8% of cases. The mandibular canal was not identified at anterior portion and discontinued with the mental foramen in 27.8% of all cases, in 42.4% identified with lower border line continued with the mental foramen, in 14.6% with both upper and lower border lines, and in 15.3% unilaterally identified with lower border line. Conclusion : Clinicians can estimate the upper border line of the mandibular canal from the confirmation of the mental foramen and the lower border line of the mandibular canal symmetrically on the panoramic radiography taken in adjusted midsaggital plane of patient's head. (Korean J Oral Maxillofac Radiol 2007; 37: 9-14)

Magnetic resonance images of ameloblastoma

김재덕,김진수 대한영상치의학회 2005 Imaging Science in Dentistry Vol.35 No.4

Purpose : To classify and describe the characteristic features of MRI of some ameloblastoma variants.Materials and Methods : The MR images, CT images, and panoramic radiographs in 5 cases were retrospectively examined as follows. First, the contents of ameloblastomas were devided into two portions of either solid or cystic components on the basis of MR signal intensities. The signal intensity within the solid or cystic portions was classified as homogeneous or heterogeneous. Next, the characteristic internal feature of the lesion on T1W1 or T2WI was described. The signal intensities were classified into low, intermediate, slightly high, high, and strong high signal intensity.Results : Unicystic lesion showed homogeneous high signal intensity (SI) on T2W2 and the rim enhancement of the surrounding area including the mural nodule and the thick wall except the central portion on Gd-T1W1. Solid type revealed heterogeneous and high SI area with strong high SI area on T2W2. On Gd-T1W1, the area corresponding to the low signal spot on T1W1 and the strong high signal spot on T2W1 showed low SI. Hybrid type showed slightly enhanced capsular structures and low SI for the round bony septa and the areas connecting the mixed and cystic lesions on T2W1 and Gd-T1W1.Conclusion : MRI could easily assess the relationship between the mixed and cystic findings in ameloblastoma.

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

Cloning, Expression, and Characterization of a Thermotolerant β-agarase from Simiduia sp. SH-4

김재덕,이동근,이상현 한국생물공학회 2018 Biotechnology and Bioprocess Engineering Vol.23 No.5

The gene coding for a thermotolerant β-agarase from an isolated Simiduia sp. SH-4 was cloned, recombinantly expressed, and characterized after purification. This gene was sequenced after cassette mediated polymerase chain reaction and composed of an open reading frame of 1,809 base pairs, encoding a protein of 66.2 kilodaltons comprising of 602 amino acid residues. The amino acids sequence showed 74% homology with β-agarase of Simiduia agarivorans. A new β-agarase gene corresponding to mature protein of 577 amino acids was recombinantly expressed and purified by chitin bead column to homogeneity. The maximal specific activity was 505.07 U/mg at 50oC in Tris/HCl (pH 6.0) buffer. Recombinant β-agarase hydrolyzed agar into neoagarotetraose (57%) and neoagarohexaose (43%). It generated products from melted and non-melted powder agar and agarose at 30-50oC, meaning cheap agar materials could be used with energy- and costsavings. Thus, recombinant β-agarase could be used for industrial production of neoagarotetraose and neoagarohexaose.

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.

中国大数据产业的成果与启示

金在德 성균관대학교 성균중국연구소 2018 성균중국관찰 Vol.22 No.-

유전알고리즘을 이용한 수직벽면 이동 로봇의 정·동적 최적설계

김재덕,노민석,정성현,홍대선 한국공작기계학회 2009 한국공작기계학회 춘계학술대회논문집 Vol.2009 No.-

Most shipbuilding works are manually carried out by workers, and safety consideration is an important issue especially in elevated-spot works such as painting and cleaning of outer wall of a ship. To cope with the circumstance, shipbuilding makers start to introduce wall-climbing robots for carrying out such tasks. In designing such a wall-climbing robot, it is essential to minimize its own weight to improve the performance such as moving speed and power saving. For such purpose, this paper proposes a method of optimal design for a wall-climbing robot body using genetic algorithm through static and dynamic analysis. Specifically, the thickness of the robot base is minimized to reduce the weight while maintaining the allowable strength and avoiding resonance frequencies. The proposed method is applied to the design of a wall-climbing robot, and the simulation results show that the method can be successfully adopted to the early stage of design.

Renewal and renewal reward theories for $T$-independent fuzzy random variables

김재덕,홍덕헌 한국전산응용수학회 2015 Journal of applied mathematics & informatics Vol.33 No.5

Recently, Wang et al. [Computers and Mathematics with Applications 57 (2009) 1232--1248.] and Wang and Watada [Information Sciences 179 (2009) 4057--4069.] studied the renewal process and renewal reward process with fuzzy random inter-arrival times and rewards under the $T$-independence associated with any continuous Archimedean t-norm. But, their main results do not cover the classical theory of the random elementary renewal theorem and random renewal reward theorem when fuzzy random variables degenerate to random variables, and some given assumptions relate to the membership function of the fuzzy variable and the Archimedean t-norm of the results are restrictive. This paper improves the results of Wang and Watada and Wang et al. from a mathematical perspective. We release some assumptions of the results of Wang and Watada and Wang et al. and completely generalize the classical stochastic renewal theorem and renewal rewards theorem.