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블록체인 분산 시스템을 적용한 피의자 신문조서의 문서성 및 증거능력 확보방안의 연구
윤철희,황재훈,강선,강장묵 한국정보기술학회 2022 한국정보기술학회논문지 Vol.20 No.8
This paper examined the problems arising from the relevant regulations, laws, and rules in the suspect's interrogation report made of electronic documents, and considered ways to secure the documentality and evidence capacity of the suspect's interrogation report prepared in practice related to the law. Currently, the suspect interrogation report is written as an electronic document by the police officer and then the electronic signature procedure is used as a public certificate method. Research is needed on ways to secure the documentability and evidence capability of suspect's interrogation while solving the problem of electronic signature of existing public certificates.The solution proposed a biometric authentication(e.g., fingerprint, face) method that cannot be stolen and transferred and a blockchain-based DID(Decentralized Identification) method, and explained the simplified procedure in the suspect's interrogation report through a blockchain platform that guarantees the reliability of a multiple ledger. 본 논문은 전자문서로 만들어진 피의자 신문조서에 관련 규정, 법률, 규칙에서 발생하고 있는 문제점을 살펴보고, 법과 관련된 실무상에서 작성하는 피의자 신문조서의 문서성 및 증거능력 확보방안을 고찰하였다. 현재 피의자 신문조서는 경찰관이 전자문서로 작성 후 전자서명 절차를 공인인증서 방식으로 사용하고 있다. 기존 공인인증서의 전자서명 문제를 해결하면서도 신문조서의 문서성과 증거능력 확보하는 방안에 대한 연구가 필요하다. 그 해결 방법은 도용·양도가 불가능한 생체인증(예:지문, 얼굴) 방식과 블록체인 기반인 DID (Decentralized-Identity:탈중앙화 신원증명) 방식을 제안하였으며, 다중원장의 신뢰성을 보장하는 블록체인플랫폼을 통한 피의자 신문조서에 간인 절차를 설명하고 그 방안에 대해 제시하였다.
5남매에 발생한 Familial Dentinogensis Imperfecta 증례
윤철희,신효근,김오환 全北大學校 齒醫學硏究所 1986 전북치대논문집 Vol.4 No.1
Dentinogenesis imperfecta is an autosomal dominant genetic defect which affect one patient in 6000 to 8000, also reported as hereditary opalescent dentin, or Capdepont dysplasia, in France. Clinically, the teeth are described as opalescent and acquire a distinct yellow-brown color shortly after eruption. The enamel chips away and the dentin which is apparently hypomineralized, is soon worn down. Radiographically, the roots appear shorter than usual and constricted to a variable degree in the cervical region and the pulp chambers are seen to be obliterated by the formation of further calcified material. The patient, a 16-year-old girl, was referred to the Dental clinic of the Chon Buk National University Hospital for discoloration of entire teeth and serious dental carious problem. Clinical appearance and radiographic examination revealed the typical abnormilities associated with dentinogenesis imperfecta and her two sisters and two brothers had same abnormalities. We performed extraction on severe cariou, teeth, intra oral sagittal split osteotony due to asymmetry and cross bite, also, rehabilated masticatory systems with fixed crown and bridge. We had a good result.
顎骨 缺遜部의 Hydroxylapatite 및 PCBM(Particulated cancellous bone and marrow)의 混合使用時 治癒過程에 關한 實驗的 硏究
尹哲熙,辛曉根,金晤煥 全北大學校 齒醫學硏究所 1986 전북치대논문집 Vol.4 No.1
By recent studies, HAP implant showed biocompatibility with host tissue, in that no toxic or foreign body reaction was found. HAP was known to have osteophilic property but not osteogenetic ability. This study examined the healing process on histologic basis following implantation with HAP-PCBM mixture on the inferior border of rabbit mandible. The results were as follws: 1. Mild inflammatory response was observed at 1st week, foreign body reaction and inflammatory response were not observed after 2nd week. 2. Osteoclastic, phagocytic activity was observed prominently on the grafted bone at 1st, 2nd week. 3. New bone was bonded with HAP particles directly without intervening tissue after 4th week. 4. At 8th, 12th week, mature bone was observed to have infiltrated between the HAP particles and osteoclastic activities were not noted. 5. Bony bridge between underlying cortical bone and HAP particles was observed after 4th week.
윤철희,배지연,김상표,권건영,김정숙,장은숙,Yun, Cheol-Hee,Bae, Ji-Yeon,Kim, Sang-Pyo,Kwon, Kun-Young,Kim, Chung-Sook,Chang, Eun-Sook 대한세포병리학회 1994 대한세포병리학회지 Vol.5 No.2
Pulmonary giant cell carcinoma is one of the most highly malignant neoplasms of the lung. Although mixed malignant glandular or squamous components may be associated with a giant cell carcinoma, it is a distinct clinical and morphologic entity. We reviewed cytologic presentations of 6 cases of pulmonary giant ceil carcinoma. Cytologically, the single most characteristic feature of giant cell carcinoma was an extremely large, bizarre cancer cell engulfing numerous leukocytes. The nuclei of these cells showed occasional prominent nucleoli, and the cytoplasm was abundant. Giant cells were also seen in other types of pulmonary carcinoma, but the slant cells of this neoplasm could be differentiated from those encountered in undifferentiated large cell carcinoma and squamous cell carcinoma by the abundant cytoplasm, the presence of markedly enlarged nuclei, prominent nucleoli, and a significant degree of phagocytosis. In conclusion, precise diagnosis and classification of lung cancer is imperative because of proved correlation between cell type and prognosis.
윤철희,박재우,문선미,황대용 대한대장항문학회 2008 Annals of Coloproctolgy Vol.24 No.5
Purpose: Treatment of ovarian metastasis from colorectal cancer has been controversial, and only limited data on ovarian metastasis have been reported. We reviewed the clinical features of patients with ovarian metastasis from a colorectal carcinoma. Methods: From 1993 to 2002, 568 women were treated for colorectal cancer. Of those, 17 cases were diagnosed as ovarian metastasis. We reviewed the 17 cases retrospectively. Results: The incidence of ovarian metastasis was 3.0% (17/568). The number of cases involving synchronous ovarian metastasis was 7 (1.2%). Those 7 patients also had another metastasis including ovarian metastasis. Ten cases (1.8%) involved metachronous ovarian metastasis. Of those 10 patients, 8 had ovarian metastasis in combination with other organ metastasis. The median disease-free interval from the diagnosis of the primary colorectal cancer to the diagnosis of ovarian metastasis was 9.8 months, and the median survival after the diagnosis of ovarian metastasis was 17.2 months. The median survival after the diagnosis of ovarian metastasis was 23.4 months in the ovarian- metastasis-only group, compared with 10.1 months in the group with ovarian and other metastasis. The difference in survival between the two groups was statistically significant. Conclusions: The incidence of ovarian metastasis from colorectal cancer was low. When such an event occurred, it was frequently associated with widespread disease and resulted in a poor prognosis. However, patients having only ovarian metastasis had a higher survival rate.