에폭시/PPO 블랜드물의 제조 및 특성 분석

閔丙珏 충주대 2001 한국교통대학교 논문집 Vol.36 No.2

The epoxy resin/poly(phenylene oxide)(PPO) blending systems as a use of matrix materials for printed circuit board(PCB) were specially prepared.A diglycidyl ether of bisphenol A(DGEBA) epoxy resin and an aromatic amine curing agent, 4,4'-diaminodiphenyl methane(DDM) were used in this study as the primary matrix materials, and PPO was blended additionally in order to improve the electric property of the system.Thermal and electric properties of the prepared epoxy resin/PPO blending systems have been investigated as a function of the concentration of PPO modifier.The glass transition temperature(Tg) was not changed noticeably up to the concentration of 10wt% of PPO and then decreased rapidly with further increment of the modifier.In addition the electric property was found showing the similar trend.The value of electric constant was decreased approximately 23% at 10wt% of PPO-modified epoxy system and then slightly increased again with further increment of PPO modifier over 10wt% concentration.

구강암의 치료 후 생존율에 영향을 주는 인자에 대한 후향적 연구

조병호,민승기,오승환,이동근,김용각 대한악안면성형재건외과학회 2002 Maxillofacial Plastic Reconstructive Surgery Vol.24 No.3

The objective of this research is to find out the influencing factors to recur oral cancers. The outcomes of 85 patients(male: 62 patients, female: 23 patients) with oral cancer who were not treated any pre-operative radiotherapy, chemotherapy or previous oral surgery, other than routine dento-alveolar procedures and a recent diagnostic biopsy were analysed retrospectively. Actuarial (life tables) survival analysis showed the 5 year survival rate was 58%, 52% for male patients, 72% for female patients. The patients who were under 50 years old showed 71% of 5 year survival rate, 51% of 5 year survival rate were above 51 years old group. Patients who were treated with elective neck dissection showed better prognosis which were shown 73% of 5 year survival rate than not neck dissection which were reveal 45% of 5 year survival rate. In TNM stage of patients, advanced stage showed worse prognosis, but only N stage did not suggest to judge good prognosis. Most patients were treated under postoperative radiation therapy and showed better prognosis.

Copyright and P2P File Sharing: Grokster and Soribada

최병각 東亞大學校 法學硏究所 2007 東亞法學 Vol.- No.39

이 글은 컴퓨터 파일공유(file sharing) 소프트웨어의 제공자가 그 이용자의 저작권(copyright) 침해행위에 대하여 책임을 져야 하는가 여부를 미국의 MGM v. Grokster 사건을 중심으로 분석한 것이다. 문제의 핵심은 제품의 생산자는 그 제품이 저작권을 침해하지 않는 이용에 충실하게 기여하는 한 불법적 이용에 대하여 책임을 지지 아니한다는 “Sony Betamax 규칙”을 P2P 파일공유에 어떻게 적용할 것인가 하는 데에 있다. Grokster는 특정 이용자의 컴퓨터를 색인을 위한 서버로 활용하는 “supernode” 시스템을 채용한 P2P 파일공유 소프트웨어를 무료로 배포한 다음 그 이용에 따른 광고수입을 얻고 있는데, Grokster 를 통한 공유파일의 90%가 MGM 이 갖는 저작권을 침해하는 것으로 밝혀졌다. 최종 이용자의 저작권침해행위에 대하여 소프트웨어 제공자에게 기여 책임(contributory liability) 또는 대리 책임(vicarious liability)을 묻기 위한 조건이 무엇인가, 나아가 적극적 유인(active inducement)에 기초한 책임을 물을 수는 없는가가 다투어진다. 우리나라의 경우 소리바다 사건에서 이용자의 불법적인 파일공유를 방지할 법적 의무가 없다는 이유로 형사책임을 부정하였지만 저작권 침해에 대한 경고만 하고 침해예방을 위하여 필요한 조치를 적극적으로 하지 않았다는 이유로 민사책임을 인정하고 있다.

SBS 공중합체를 이용한 친환경 열가소성 탄성체

민병각 忠州大學校 2008 한국교통대학교 논문집 Vol.43 No.-

Polyvinylchloride(PVC) has been used as a polymeric material for replacing the natural leather in the various applications with its relatively competitive price and excellent processibility. However, the use of PVC is restricted more and more due to the environmental problem such as emission of dioxin associated with its combustion. Recently, the studies for the development of environmental compound replacing PVC are carried out widely. In this study a principal thermoplastic elastomer, Styrene-Butadiene-Styrene(SBS) copolymer is used as a base material and modified by the secondary thermoplastic polymers in order to obtain a new recycleable environmental compound which has the required properties for replacing PVC. Two SBS used in this study are solution polymerized block copolymers. They have styrene content of 30 and 40 wt% respectively. The thermoplastic polymers used as modifier are High Impact Polystyrene(HIPS) and Polypropylene(PP). In order to increase the processibility and flexibility white oil was added in the range of 20 to 75 phr. Three compounds with different formulations were prepared by using a 25mm twin screw extruder under the conditions of 200℃ extrusion temperature and 150rpm extrusion speed. The prepared compounds were used for the characterization of rheological and mechanical properties. We presented in this paper the comparative data of rheological property and mechanical properties such as hardness, tensile strength, strain to break, tear strength and bounce impact elasticity.

형사절차에서 아동 피해자의 권리와 보호

최병각 동아대학교 법학연구소 2002 東亞法學 Vol.- No.31

Alexander-Hauduroty의 非抗酸性三重 梁色에 依한 結核菌의 檢出에 對하여

閔炳珏 醫藥係社 1959 綜合 醫學 Vol.4 No.1

경화 조건이 에폭시수지계의 역학적 거동에 미치는 영향

閔丙珏 충주대 산업과학기술연구소 1998 産業科學論文集 Vol.6 No.-

The mechanical behaviors of a DGEBA based epoxy resin(Epikote 8283) cured with an aromatic amine curing agent DDS were studied as a function of cure temperature and cure cycle. The glass transition temperature(which depends on the extent of cure) and the large strain properties including fracture toughness and tensile strength, showed a linear increase with increasing final cure temperature regardless of cure cycle, and level off toward the cure temperature of 200℃. In contrast, the flexural modulus which is a small strain property was not influenced greatly by cure temperature and cure cycle. From the results obtained in this study we infer that the large strain properties of the resin may not be inversely proportional to the crosslink density, but rather that they are more dependent on other structural parameters such as the flexibility of the crosslinked network chains and the free volume entrapped in the network.

조직범죄수사의 협조자에 대한 양형과 형사면책

최병각 한국비교형사법학회 2003 비교형사법연구 Vol.5 No.2

The Korean government pronounced “war against crime and violence” in 1990 and has made every efforts to eradicate organized crime since then. But recently the problem of organized crime attracts an enormous attention of the public again. In order to succeed in controlling organized crime, the government has to develope diverse countermeasures such as increased penalty, rigid enforcement of regulations and so on. The act of constituting or joining an association that aims to commit a crime shall be punished with the same penalty as an aimed crime(Criminal Act §114①). But it is very difficult to get an information about criminal organization without testimony of inner members of such a group. When a member of criminal organization assists in the investigation or prosecution of organized crime, he/she deserves a discretionary mitigation or impunity in sentencing on the ground of voluntary surrender(Criminal Act §52) and/or crime reporting(Protection of Witness of Serious Crimes Act §16). But the Supreme Court disregards the legal duty of court to state grounds of sentencing clearly(Criminal Procedure Act §323②) and an adequate system which guide and regulate sentencing discretion of the judge has not been established yet. In the criminal justice practice, the prosecutor may provide informal immunity through an agreement whereby the witness agrees to testify in exchange for a promise of non-prosecution(Criminal Procedure Act §247①). But the validity of promise between the prosecutor and the witness could not be admitted by the court. It is suggested in this article to enact an immunity statute that grants the witness protection only against the admission of his/her immunized testimony and its derivatives in evidence in a subsequent prosecution. The fidelity to the government based on statutory immunity and foreseeability of sentencing might be a great temptation for a member of organized crime to step into law-abiding citizen’s way.

八脈交會穴 中 內關·公孫에 대한 文獻的 考察

金南珏,李賢,李秉烈 대전대학교 한의학연구소 2001 한의학연구소 논문집 Vol.10 No.1

According to the literature study on Nae-gwan and Kongson, reviewing the oriental medical books from Hung-Ti-Nei-Ching 《黃帝內經》 to recent books and other 35 kinds of literatures, the following results are obtained. 1. The location of Nae-gwan is the superior 2 cun Tae-nung point between Tendon of flexor carpiradials and Tendon of palmaris longus; the location of Kongson is the 1st Metatarsal, medial, dented and posterior 1 cun T´aebaek pont. 2. The effects of Nae-gwan are relaxing mind, nutrition of heart, peaceful chest, invigorate vital energy, transmitting triple energy; the effects of Kongson are steadying spleen harmonious stomach clearing away dampness, controlling ch´ung-im, regulating blood. 3. Nae-gwan is often used for circulatory organs disease, digestive organs disease, neuropsychiatry disease; Kongson is often used for digestive organs disease, urinary organs disease, neuropsychiatry disease, therefore, these double points are used for internal disease wholly. 4. The Needle-steadying depth of Nae-gwan is 0.5-1 cun, Kongson is 0.3-2 cun; the Moxibustion dosage of Nae-gwan is 3-7 zhuang, Kongson is 3-5 zhuang. 5. Nae-gwan belongs to pericardium Merdian, Kongson belongs to Spleen Meridian, therefore, these double points are combined in yin Meridian upper and lower sides. These points can be used for treating front body part, such as heart, chest and stomach.

체포 · 구속된 피의자와 국선변호인

최병각 東亞大學校 法學硏究所 2003 東亞法學 Vol.- No.33