Tool을 이용한 요구 명세서 작성

신재선,이성주 조선대학교 기초과학연구소 1988 自然科學硏究 Vol.11 No.1

Jae Seon Shin Sung Joo Lee This thesis describes an approach to requirements specification in which different aspects of requirements specification are expressed using multiple models. This thesis also describes an interactive software tool named Model-Box, Which supports the construction and analysis of requirements models via textual and graphical representations. Model-Box allows users to define appropriate new models for the aspects they want to describe, without restriction to a single modeling methodology.

Photonic Crystals: Integration of Colloidal Photonic Crystals toward Miniaturized Spectrometers (Adv. Mater. 9/2010)

Kim, Shin-Hyun,Park, Hyo Sung,Choi, Jae Hoon,Shim, Jae Won,Yang, Seung-Man WILEY-VCH Verlag 2010 Advanced materials Vol.22 No.9

<B>Graphic Abstract</B> <P>The cover shows a schematic illustration of patterned colloidal photonic crystals with different bandgap positions. When an unknown light source impinges on the patterned photonic crystals, the light information can be identified from the reflection intensity profile of the constituent photonic crystals. The two optical microscopy images and background image display integrated photonic crystals with 20 different bandgaps spanning the entire visible range, and the SEM image shows the cross-section of the photonic crystal stripes, as reported by Shin-Hyun Kim, Seung-Man Yang, and co-workers on p. 946. <img src='wiley_img_2010/09359648-2010-22-9-ADMA201090022-content.gif' alt='wiley_img_2010/09359648-2010-22-9-ADMA201090022-content'> </P>

전통마을 경관보전에 관한 정책대안 연구

신상섭,허준,노재현 한국정원학회 2002 한국전통조경학회지 Vol.20 No.2

The purpose of this research make a counter proposal on the conservation state and policy of traditional village(Asan Woeam:牙山 外岩村, Andong Hahoe:安東 下回村, Kyeongju Yangdong:慶州 良洞村, Soonchun Nakaneupsung:順天 樂安邑城村) landscape. Up until now, it is true that the value of traditional village landscape had been buried and the conservation of those places has been measured only on the basis of their basis of their economic value. In the future, we will try to recognize the value of traditional village as the history of villagers lives and to cherish their diversity, that the current interests of people persist and also provides the opportunity to recover the beautiful landscape of traditional village. The conservation policy of traditional village landscape in the Korea must have designation as landscape cultural assets, introduction technique of landscape impact assessment, consolidation of landscape state, land use system adjustment, participation of landscape specialist, toward sustainable tradition village, introduction of new community village idea. Also, there are necessary set up of traditional landscape design criteria and master plan, operation of landscape impact evaluation.

AES-128 Rijndael 암·복호 알고리듬의 하드웨어 구현

신성호,이재흥 한밭대학교 정보통신전문대학원 2004 정보통신전문대학원 논문집 Vol.2 No.1

본 논문에서는 미국 국립표준기술연구소(NIST)에서 채택한 차세대 암호 표준인 Rijndael 암호 알고리듬을 하드웨어로 구현한다. 효율적인 연산을 위해 라운드를 2개의 부분 라운드로 나누고 부분 라운드 간에 파이프라인을 사용하였으며, 1 라운드 연산시 평균적으로 5클록이 소요된다. AES-128 암호 알고리듬을 ALTERA PPGA를 사용하여 하드웨어로 구현 후 성능을 분석하였다. 구현된 AES-128 암호 알고리듬은 암·복호화시 최대 90 Mhz의 동작 주파수와 약 230 Mbps의 암·복호율을 얻을 수 있었다. In this paper, Rijindal cipher algorithm is implemented by a hardware. It is selected as the AES(Advanced Encryption Standard) by NIST. The processor has structure that round operation divided into 2 subrounds and subrounds are pipelined to calculate efficiently. It takes 5 clocks for one-round. The AES-128 cipher algorithm is implemented for hardware by ALTERA FPGA, and then, analyzed the performance. The AES-128 cipher algorithm has approximately 230 Mbps encryption·decryption rate for 90Mhz max clock frequency.

뇌 자기공명영상상 뇌량 병변의 호전을 보인 Marchiafava-Bignami병 1예

정재훈,성기범,안무영,신현길,박형국 대한신경과학회 1999 대한신경과학회지 Vol.17 No.5

포진후 통증환자에 대한 신경차단술의 효능 : 예비적 보고

신규만,조도상,조용재,김명현,김상진,김성학 이화여자대학교 의과대학 2005 EMJ (Ewha medical journal) Vol.28 No.1

Objectives : Of all the chronic pain syndromes postherpetic neuralgia ranks the most refractory to treatment. The eight postherpetic neuralgia patients have been treated with nerve blocks or neurolysis and obtained good result. We evaluate the therapeutic effect of nerve blocks for postherpetic neuralgia and reviewed the pathology, clinical consideration, treatments and prevention. Materials and Methods : Eight patients with established postherpetic neuralgia enrolled in pain clinic of Mokdong Hospital of Ewha Womans University from March,2004 to December. Average age at 58 and about 63% of patients were over 68 years. Affected area of forehead was two patients. They have been treated with stellate ganglion block (SCB), two times supraorbital and supratrochlear nerves blocks and neurolysis with absolute alcohol. Face affected patient has was one and has been treated with 5 times SGB, 2 times supraorbital and supratrochlear nerves blocks, infraorbital and mental nerves blocks, and then 2times maxillary and mandibular nerves blocks. Chest affected two patients were treated with intercostal nerve blocks. Thoracic wall affected one patient received 2 times thoracic epidural blocks and thoracic nerve block. Scapalur and thoracic wall affected patient has been treated with SGB and 2 times thoracic epidural block. The chest and thoracic wall affected patient received 10 times intercostal blocks,2 times thoracic epidural blocks,3 times thoracic root block and neurolysis of intercostal nerves with absolute alcohol. The injected agents were 1% mepibacaine or 0.25% mercain heavy and methylprednisolone succinated, and at weekly intervals the agents were injected. Results : All patient having been treated with nerve blocks were free of pain at 3-9 months. Conclusion : Although no controlled trial has been done of nerve blocks to treat postherpetic neuralgia, this technique is safe in experienced hands and, if effected, may be repeated. It suggested that local anesthetics and steroid are the effective components in nerve blocks. Data on the relief of acute pain with nerve blocks, however cannot be extrapolated to predict the prevention of postherpetic neuralgia. The best way to prevent herpes zoster becasuse of post herpetic neuralgia is so difficult to treat.

Effect of Mn and C on Age Hardening of Fe–Mn–Al–C Lightweight Steels

Sung‑Won Park,Jun Young Park,Kyong Mox Cho,Jae Hoon Jang,Seong‑Jun Park,Joonoh Moon,Tae‑Ho Lee,Jong‑Ho Shin 대한금속·재료학회 2019 METALS AND MATERIALS International Vol.25 No.3

The effects of Mn and C content on the age hardening of Fe–Mn–Al–C lightweight steels, which have austenitic or duplex(austenite and ferrite) microstructures, were investigated. An increase in Mn content induced a delay of the age hardeningthat is caused by the formation of intra-granular κ-carbides. In order to interpret the effect of Mn content, first-principlescalculations were conducted using the supercells of Fe24Al8C8,Fe24Al8C7,Fe24(Al7Mn)C8, and Fe24(Al7Mn)C7. The calculationsshowed that an increase in Mn content could be the source of the delay of the intra-granular κ-carbide formation bysuppressing C atom’ occupation of the vacancy at the body-centered site of L12. An increase in C content accelerated theformation of intra-granular κ-carbides, which induced the intense age hardening, and coarse inter-granular κ-carbides, whichresulted in significant decrease in impact absorbed energy due to inter-granular fracture.

어린이에서 함치성 낭과 연관된 매복 소구치와 대구치의 치료

신차욱,김영재,김정욱,장기택,이상훈,김종철,한세현 大韓小兒齒科學會 2008 大韓小兒齒科學會誌 Vol.35 No.4

치아 매복은 어린이 환자 진료시에 자주 관찰되는 맹출 장애이다. 어린 환자에서 매복된 치아가 존재하는 경우,함치성 낭과 연관이 있을 가능성이 높다. 함치성 낭은 제3대구치를 제외하고는 상악 견치,하악 소구치 부위에서 가장 호발하며,점진적인 증식으로 악골이 팽윤되어 안모를 변화시키며,주위 악골의 파괴와 치근의 흡수를 야기하거나 침범된 치아의 변위를 유발할 수 있으므로,조기 진단과 적절한 치료가 무엇보다도 중요하다. 함치성 낭과 연관된 치아가 과잉치나 지치라면,치아의 발거를 포함한 완전한 낭종 적출술이 적절한 치료라 할 수 있지만,그렇지 않은 경우에는 환자의 심리적,정선적 외상을 예방하기 위해 원인 치아의 보존이 고려되어야 할 것이다. 이뿐만 아니라,치아의 변위 정도,골 파괴 정도,치근의 성숙도,주위 치아와의 관계,환자의 교합과 구강 악안면 영역의 성장 양상 등도 같이 고려되어야 할 것으로 생각된다. 본 증례에서는 위와 같은 사항들을 고려하여,함치성 낭과 연관된 매복 소구치와 대구치블 낭종 적출술 후 공간 유지,외과적 수술과 교정적 견인,외과작 발거 후 교정적 배열 등의 방법을 통해 양호한 치료 결과를 얻었기에 보고하는 바이다. Tooth impaction is a frequently observed eruption anomaly in pediatric dental practice. Young patients with impacted or unerupted teeth have more prediction for dentigerous cyst formation. Dentigerous cyst presents radiographic features. unilocular or multilocular radioluscency. Cysts occur most frequently in the premolar region except third molar. Dentigerous cysts can grow to a considerable size, and large cysts may be associated with a painless expansion of the bone in the involved area. Extensive lesions may result in facial asymmetry, osseous destruction, root resorption of proximal teeth and displacement of associated tooth. The nature of the causative tooth influences the type of surgical treatrnent required for the dentigerous cyst. If the cyst is associated with a supernumerary or wisdom tooth. complete enucleation of the cyst along with extraction of tooth may be the first treatment choice. Otherwise. preservation of the associated teeth should be considered to prevent a young patient from psychological and mental trauma because of the loss of tooth. We should consider the degree of tooth displacement. osseous destruction and growth pattern of oromaxillofacial area when planning treatment. Thus a proper and logical treatment planning can help a proper growth and development of oromaxillofacial area and can save the patient from a psychological and mental trauma. This report describes 4 cases of the management of impacted premolars and molars associated with dentigerous cysts in children.

대뇌 기저핵 신경세포 일차배양에서 망간에 의해 유도된 Appoptosis : 형태학적인 소견

신동훈,김상표,정용욱,배재훈,송대규,백원기 大韓産業醫學會 2000 대한직업환경의학회지 Vol.12 No.1

목적 : 본 실험은 대뇌기저핵의 신경세포를 배양하여 망간(MnCl₂)을 투여한 후 망간독성에 의한 신경세포의 apoptosis를 형태학적인 소견으로 관찰하였다. 방법 : 배양된 신경세포에 0.01에서 10μM Mnc12를 48시간동안 처리한 후 TUNEL (TdT-mediated dUTP Nick End Labelling)법 및 투과전자현미경학적으로 관찰하였다. 결과 : TUNEL방법을 이용하여 관찰한 결과 TUNEL반응에 갈색으로 양성반응을 나타내는apoptotic 세포의 수가 대조군에 비해 MnCl₂를 투여한 군에서 유의하게 높게 나타났으며(P〈0.05), 투과전자현미경학적 소견상 대조군의 신경세포들은 핵인(nucleolus)이 두드러지게 특징적으로 보이면서 핵막과 세포질내 소기관들이 잘 보존되어 있으며, 세포질내망(ER)과 사립체(mitochondria)를 특히 많이 가지고 있었다. Mnc12를 48시간 동안 처리한 군에서 이질염색질(heterochromatin)이 핵막으로 이동하면서 응집되어 있었으며, 핵내 불규칙한 형태의 염색질이 나타나 분절이 진행되는 소견을 보였고, Apoptosis의 가장 특징적인 초기 소견인 막으로 둘러싸인 반달모양의 핵내염색질의 분절편(fragment-ed chromatin)과 주위의 상대적으로 정상적인 소기관으로 구성된 apoptotic body를 관찰할 수 있었다. 결론 : 신경세포에서 망간에 의해 apoptosis가 유도됨을 형태학적인 방법으로 확인할 수 있었으며 망간에 의한 세포사망양상에 apoptosis가 하나의 기전이 될 수 있을 것이다. Objectives : Manganese is cytotoxic to the central nervous system including basal gan-glia. Its toxic mechanism is related to oxidative stress, mediated by toxic free radicals but is specultives. In the present study , we have investigated to manifest apoptosis in man-ganese-induced cytotoxicity in primary neuronal cell culture of rat basal ganglia. Methods : To detect apoptotic neuronal cells were stained by the terminal deoxynu-cleotide (TdT) -mediated dUTP nick end-labelling (TUNEL) method and apoptotic changesin nuclei of neurons were observed by electron microscopy. Results : We showed that TUNEL immunostain showed brownish signal in the nuclei of apoptotic cells and the proportions of apoptotic cells in Manganese treatment groups were more higher than controls. On transmission electron microscopy, there were chromatine condensation with margination toward nuclear membrane and condensation of cyto-plasm in the treated with luM MnCl²for 48 hours in a basal ganglia neurons. Apoptotic bodies were found and consisted of semilunar-like condensed nuclei with relatively intact cytoplasmic organelles. Conclusions : Apoptosis appears to be one mechanism in the manganese-induced net-ronal cell death. Manganese intoxication is a convenient model for apoptosis study.

Periotron을 이용한 소아 치은 상태의 평가

신정근,백병주,김재곤,양연미,김성희 대한소아치과학회 2006 大韓小兒齒科學會誌 Vol.33 No.3