청소년의 인터넷 중독 정도에 따른 정신과적 공존질환 및 행동 양상에 관한 연구

이준영(June-Young Lee),박이진(E-Jin Park),조근호(Keun-Ho Joe),채숙희(Suk-Hi Chai),김성벽(Sung-Byuk Kim),이창욱(Chang-Uk Lee),김대진(Dai-Jin Kim) 한국중독정신의학회 2010 중독정신의학 Vol.14 No.1

Objectives:This study aimed to clarify the differences in psychiatric comorbidities and, behavioral patterns correlating with the severity of Internet addiction in adolescents. Methods:We assessed 321 adolescents recruited from an Internet rescue school, psychiatric outpatients, and 4 schools in Seoul and Gyeonggido. We divided them into a non-addicted group, a potential-risk group, and a high-risk group according to Young’s Internet Addiction Test (IAT). We evaluated their psychiatric comorbidities and behavioral patterns via psychiatric clinical interview, the Children’s Depression Inventory (CDI), the State-Trait Anxiety Inventory (STAI), and a self-report questionnaire about behavioral pat-terns. Results:There were significant differences in CDI and STAI scores among the 3 groups. The IAT, CDI, and STAI scores correlated positively with each other. There were differences in psychiatric comorbidity distributions between the potential-risk and high-risk groups, but only “other mood disorder” showed a significant difference. There were also significant differences in behavioral patterns among the 3 groups. Conclusion:This study suggests that there are psychiatric comorbidity and behavioral pat-tern differences according to Internet addiction severity in adolescents. We expect further studies will reveal more profound understandings of these relationships.

Modification of Optical and Mechanical Surface Properties of Sputter-Deposited Aluminum Thin Films through Ion Implantation

Kang, Tae June,Kim, Jeong-Gil,Lee, Ho-Young,Lee, Jae-Sang,Lee, Jae-Hyung,Hahn, Jun-Hee,Kim, Yong Hyup 한국정밀공학회 2014 International Journal of Precision Engineering and Vol.15 No.5

Aluminum (Al) thin films are used widely as an electronic material in a variety of applications because of their high conductivity, optical reflectance and low cost. In the present study, helium (He) and nitrogen (N2) ions were implanted in sputter-deposited Al thin films with different doses and energies, and the changes in the film properties, such as the surface roughness, optical reflectance, hardness and Young's modulus, were investigated. The results showed that the implantation of both ions smooth the surface of Al thin films by decreasing the hillock density, resulting in low global surface roughness. In particular, in the case of He ion implantation, the moderated degradation of optical reflectance was observed compared to the film implanted with nitrogen ion. On the other hand, excessive ion implantation increased the local (short-range) surface roughness, which deteriorated the optical reflectance of the Al films. The continuous stiffness measurement technique in nano-indentation showed that ion implantation increased the hardness near the surface. He ion implantation hardened the surface of the Al thin film, and almost 2 times higher surface hardness was achieved with an ion dose of $10^{18}ions/cm^2$ at 40 KeV.

식품 기준·규격의 합리적 관리 ·운영에 관한 연구(Ⅰ) : 두부,식용유지, 전분의 분말상 원료에 관하여 Powdered marerials of Tofu, Edible oil, Starch

김희연,홍진환,박혜경,한상배,박종석,이은주,이정성,송경희,최은희,최영준,소경아,성영제,이주엽 식품의약품안전청 2000 식품의약품안전청 연보 Vol.4 No.-

본 연구는 분말상 원료(전분, 대두분)의 저장유통시 품질변화를 건전성과 안전성 측면에서 검토하여 식품의 기준 ·규격 설정f.」 합지적으로 반영하고자 하였다. 전분과 패두분의 이물을 검사하고, 2종 대두분(중국산, 미국산)을 ?0일간 IS'c와 30t에 저장하면서 성상, 수분, 산가, 과산화물가, 지방산 조성,아플라톡신 BB의 생성여부를 분석하였다. 중국산 대두분 30'』 저장군에서 50일 이후 곰팡이가 발생한 것 이외에 모든 시료에서 양호한 성상을 나타내었고, 전분과 대두닥 모든 시료에서 이물은 검출되지 않았다. 산가는 중국산과 미국산 시료간에 편차를 보여 증국산 30"C, 50일 저장시료에서 약 10배끙도 증가하였고, 과산화물가는 저장 90일후 15'E 저장군은 약 2.3배, 30'c 저장군은 3배정도 증가하였다. 대두분의 주요 지방산은 linoleic acidf18. 2), oleic acid(18 : 1), palmitic acid(16 : 0)이었으며, 3개월 저장에 따른 지방산 함량의 변화는 미미하였다. 아플라톡신 B₁은 모든 시료에서 검출되지 않았다. The objective of this study was to investigate auality changes of type raw materials(starch, soy flour) during various storage conditions. Starchflour(source of China, U.S.A) were slfred under two temperature(15'C, 30'c) forSensory evaluation, (o.reign material test, moisture content, acid value, peroxide ualue,composition, aflatorin Bi were analyzed. China soy flour(stor·ed 30'f) was contaminated by fungj on 50 days. Except for soy flour contardnated by fungi, sensory characteristics were not changed and foreign mater;als were notdetected. Acid value of China soy flour(stored at 30'C, 90 days) was about 10 times higherlevel before storage and acid value was more influenced by source(China, USA). Peroxide valuewas in proportion with the storage period slightly. The major fatty acid of soy flour waslinoleic acid(18 . 2), an(3 the change of fatty acid composition was not observed. Aflatoxlrl Blwas not detected.

간세포암과 감별이 어려웠던 악성중피종 치험 1예

김선문,허원석,채경훈,강윤세,정재훈,김연수,박기오,문희석,이엄석,김석현,성재규,이병석,이헌영,신경숙,조준식,송인상,강대영 충남대학교 의학연구소 2003 충남의대잡지 Vol.30 No.2

Malignant peritoneal mesothelioma is a rare neoplasm that arises from the mesothelium of a serosal cavity and is a rapidly fatal disease with a median survival of 4 to 12 months for untreated cases. Recently, we experienced a case with malignant peritoneal mesothelioma who was suspected hepatocelluar carcioma by abdominal CT scan and was confirmed by biopsy including immunohistochemical stain(calretinin) after surgery. We performed tumor excisions and wedge resection of the liver(segment Ⅷ)and inserted Tencoff catheter in abdominal cavity at 25th day of post-operation. We treated with intraperitoneal paclitaxel(25mg/m^(2)/day for 5 days) six courses monthly. She was well tolerable and is still living without any evidence of recurrence for 14th month of post-operation.

스마트폰을 이용한 ID/PW 기반 강화된 사용자 인증 시스템 설계

"채영진", "이진우", "이진해", "조인준" 배재대학교 공학연구소 2015 공학논문집 Vol.17 No.1

현재 사용하고 있는 여러 인증방법은 단순한 ID/PW와 인증서, 지문/홍채 인식, 전화, 보안카드, OTP등 다양한 기술들을 사용하고 있다. 하지만 단순한 ID/PW방식은 보안에 취약한 단점이 있고, 다른 인증 방법들은 취약점을 해결 하였지만 이를 활용하기 위해서는 소요되는 비용과 복잡성이 내재 되어있다. 본 논문에서는 기존의 인증 방법의 보안강도를 유지하면서 우리가 흔히 가지고 있는 스마트폰을 활용하여 저비용으로 사용자 인증을 보다 안전하게 할 수 있는 방안을 제안 하였다. The user authentication method, which is presently used on application system, is in general use of diverse technology. For example, the authentication certificate, fingerprint, IRIS, cell phone, security card, and OTP including simple ID/PW are the current system we use in daily life. However, when people use simple ID/PW, they are able to feel the method of ID/PW is vulnerable to security. To figure out this problem, people invented any other ways to get over this problem. However, it also causes other weak points such as complexity and cost for commercialization. In this paper, it suggests smartphone method. This is more secure than before. In addition, in terms low cost, this can be much effective way. Therefore, it suggests better security strength and economical solution for authentication system .

혈액투석 환자에서 대퇴신경범증으로 발현된 장골근 및 요근 농양 1예

이준상,강동구,신상열,윤재호,조영일,고성은,유영범,전혜정,진춘조,송종오 대한신장학회 2004 대한신장학회잡지 Vol.23 No.1

유럽 共同體法과 國家主權

李英峻 경희대학교 사회과학대학 1992 社會 科學 論叢 Vol.10 No.-

온실에서 동양란인 심비디움 재배에 공생균의 효과에 관한 연구

이상선,이준기,이정우,박소영,백기엽 충북대학교 첨단원예기술개발연구센터 2000 연구보고서 Vol.5 No.-

The orchid symbiotic fungus (Tulsanella repens P-01; OSF) was cultured on the soil materials by solid culture and inoculated in the two varieties of GwanUm and SaGae of Cymbidium hybrids with the barks. The two varieties of the oriental orchid were measured after 12 months' cultivation under the conditions of greenhouse; fresh weight, numbers of bulb, and rate of dead bulb for an individual plant. The fresh weight of plants were measured to be different for the individual plant. The fresh weight of plants were measured to be different for the individual plants treated with the OSF or not, depending on the varieties, but the rates of dead bulb were significant, disregarding with the varieties. The roots of the plants treated were observed to be more health and heavier weight than those not treated. The bulbs of the plants not treated were measured to be dead at the rate of 20% for a year's cultivation. The roots of two varieties were also observed by naked eyes and by microscope; Several peletons were observed to be in the root cells in the individual plants treated with OSF, but not in the individual plants treated without the OSF. Further, the pathogenic fungal hyphae were observed to be in the roots under the dead bulbs of both varieties not treated; appessorium or hasutorium on the epidermal cells of root. The inoculation of OSF was speculated to stimulate the growth of plants by absorption of mineral nutrition and defense the invasions of soil pathogenic fungi for the cultivations of Cymbidium hybrids.

척추관 협착증에 대한 연구 : 요추관 협착증 환자에서 협착 부위에 따른 수술적 치료의 결과 Results of the Operative Treatments by the Level of Lumbar Spinal Stenosis

이준규,안재성,양준영 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.2

Spinal stenosis is any type of narrowing of the main spinal canal, nerve canal or foramina from structural abnormality of bony components. Posterior decompression only provide relief of pain and restoration of neurologic function, and simultaneous posterolateral fusion is needed for prevention of spinal instability after wide posterior decompression. The degree of decompression (focal or wide), instrumentation and bone graft is dependent to the level of stenosis and instability. The purpose of this study is to compare the operative results clinically and radiologically by the level of spinal stenosis. We reviewed 73 patients of lumbar spinal stenosis who had undergone operations with posterior decompression or posterolateral fusion with spinal instrumentation at our hospital, From January 1987 to October 1997. We classified the level of stenosis into one level, two level and multi-level(above three level) stenosis, and on the last follow up, radiological bony union, clinical results, and complications were compared. The following results were obtained. I. The one level was 42 cases(57.6%), two level 24 cases(32.9%), and multi-level stenosis 7 cases(9.6%) and the most common stenotic level was at LA-5, 31 cases(42.5%). 2. Posterior decompression only were carried out on 20 patients(27.4%), and simultaneous posterolateral fusion with instrumentation were 53 patients(72.6%), CD 4 cases, CCD 11 cases, PWB 2 cases, and Diapason 36 cases. 3. The radiologic union rate was 41 cases(97.6%) in one level, 22 cases(87.5%) in two level, 6cases(85.7%) in multi-level spinal stenosis. 4. The excellent or good clinical results(by the Kikaldy-Willis criteria) were 40 cases (95.2%) in one level, 22 cases(91.8%) in two level, 6 cases(85.7%) in multi-level spinal stenosis. 5. The postoperative complications such as infection, metal failure, neurologic deficit or death were 6 cases(14.3%) in one level, 4 cases(21%) in two level, 3 cases(44.3%) in multi-level stenosis.

北極의 法體制 現況 및 그 展望

李英峻,鄭甲龍 경희대학교 사회과학대학 1994 社會 科學 論叢 Vol.12 No.-