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신경진,최종훈,윤창록,김종열,Shin, Kyoung-Jin,Choi, Jong-Hoon,Yoon, Chang-Lyuk,Kim, Chong-Youl 대한안면통증구강내과학회 1999 Journal of Oral Medicine and Pain Vol.24 No.1
This study intends to find usefulness of the computer assisted dental identification in mass disaster. The variety of dental characteristics was investigated through the research of dental records of 508 adults. And a computer assisted simulation program was used to evaluate the selectivity of dental identification. Findings were as follows : 1. Combinations of dental characteristics were found 155 types. The most various dental characteristic was showed on the mandibular first molar. 99.0% of subjects had dental characteristics for dental identification. 2. The posterior teeth, in comparison with anterior teeth, showed higher selectivity in dental identification which was enhanced by information on the material, type and cavity of the restoration. 3. The variety of dental characteristics was mainly found on the combinations of missing tooth with the material, type and cavity of the restoration. 4. The computer assisted dental identification program, with informa- tion about one's tooth state, made individual identification possible when there was only a part of the teeth in a corpse. 5. The computer assisted dental identification had considerably high selectivity based on the variety of dental characteristics. And it was also performed faster and preciser than the existing identification methods. Based on the results of this study, there are various combinations of the feature of the tooth itself with dental characteristics caused by a certain type of treatment on the teeth. And using the computer assisted dental identification program based on this, dental identification can be more efficient economically and more useful than any other forensic identification methods.
신경진,정소연,이재원 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.52 No.-
In this study, bioethanol was separated and concentrated by a pervaporation system, and the residue wassubsequently evaluated for antioxidant activity. The hydrolysate contained high acetic acid, furfural, andtotal phenolic compounds (TPC) as fermentation inhibitors. The bioethanol was produced from theelectrodialysis-treated hydrolysate, with sulfuric and maleic acid (14.00 g/L and 13.33 g/L, respectively). The amount of TPC in the ethyl acetate extract of the residue, generated from the ethanol pervaporationafter the fermentation of the maleic acid hydrolysate (MA-F-E), was as high as 100.78 mg/100 g. The IC50values of the DPPH and ABTS radical scavenging activities and the EC50 value of the reducing power werethe lowest with the MA-F-E at 0.85 mg/mL, 0.73 mg/mL, and 0.54 mg/mL, respectively. Among thephenolic compounds, vanillic alcohol, benzoic acid, and 3-vanil-1,2-propane were the most abundantcompounds in the ethyl acetate extracts of the residue.
The Merits of Mannitol in the Repair of Orbital Blowout Fracture
신경진,이동근,박현민,최미영,배진호,이의태 대한성형외과학회 2013 Archives of Plastic Surgery Vol.40 No.6
Background One of the main concerns in orbital blowout fracture repair is a narrow operation field, due mainly to the innate complex three dimensions of the orbit; however, a deep location and extensive area of the fracture and soft tissue edema can also cause concern. Swelling of the orbital contents progresses as the operation continues. Mannitol has been used empirically in glaucoma, cerebral hemorrhage, and orbital compartment syndrome for decompression. The authors adopted mannitol for the control of intraorbital edema and pressure in orbital blowout fracture repair. Methods This prospective study included 108 consecutive patients who were treated for a pure blowout fracture from January 2007 to October 2012. For group I, mannitol was administered during the operation. Under general anesthesia, all patients underwent surgery by open reduction and insertion of an absorbable mesh implant. The authors compared postoperative complications, the reoperation rate, operation time, and surgical field improvement between the two groups. Results In patients who received intraoperative administration of mannitol, the reoperation rate and operation time were decreased; however, the difference was not statistically significant. The total postoperative complication rates did not differ. Panel assessment for the intraoperative surgical field video recordings showed significantly improved vision in group I. Conclusions For six years, mannitol proved itself an effective, reliable, and safe adjunctive drug in the repair of orbital blowout fractures. With its rapid onset and short duration of action, mannitol could be one of the best methods for obtaining a wider surgical field in blowout fracture defects.
신경진,이인성 한국음향학회 2001 韓國音響學會誌 Vol.20 No.7
본 논문은 스펙트럴 크기 파라미터들에 대한 효율적인 가변 차원 양자화 기법을 제안한다. 특히, 하모닉 부호화 기에서의 스펙트럴 크기값 계수들은 가변차원이기 때문에 가변 차원의 양자화를 필요로 한다. 따라서, 본 논문에서는 스펙트럴 크기값 계수들에 대해 가변 이산 코사인 변환(DCT: Discrete Cosine Transform) 및 가변 차원에 적합한 훈련구조를 가지는 비정방형 변환 벡터 양자화 (NSTVQ: Nonsquare Transform Vector Quantization)를 홀수/짝수 구조 및 분할(Split) 구조 그리고 다단계(Multi-stage) 구조 등과 결합시킨 효율적인 양자화 기법을 제안한다. 제안된 양자화 기법의 성능평가는 스펙트럴의 크기값에 대한 주파수 왜곡(SD: Spectral Distortion) 값을 사용하였으며, 다단계 비정방형 변환 벡터 양자화(MSNSTVQ: Multi-Stage Nonsquare Transform Vector Quantization)가 가장 좋은 성능을 나타내었다. In this paper, we present a variable dimension vector quantization for spectral magnitudes. Espectially, spectral magnitudes of the Harmonic coder, need variable dimension quantizer because those are not fixed dimension. So, this paper present efficient quantization methods. These methods use variable Discrete Cosine Transform(DCT) for spectral magnitude parameters and NSTVQ which is combined odd/even, split and multi-stage structure, proposed quantization methods use Spectral Distortion(SD) for performance measure. Consequently, Multi-Stage Nonsquare Transform Vector Quantization(MSNSTVQ) is the best in performance measure.
신경진 충남대학교 교지편집위원회 1999 寶雲 - 충남대학교 Vol.- No.30
새천년을 불과 두어달 앞둔 현재 언론계의 화두가 인터넷이라는 것을 부정할 이는 많지 않을것이다. 산업혁명 이래 인류역사상 가장 혁명적 사건은 바로 정보화혁명이며 인터넷의 확산은 이러한 변화의 핵심에 위치한다.'사이버 저널리즘','온라인 저널리즘'등 다양한 파생력을 지니고 언론계에 불어닥친 인터넷바람은 국내에 있어서도 이미 도입단계를 지나 정착의 단계로 접어든지 오래다.