개선된 추천시스템을 이용한 전자상거래시스템 설계

김영설,윤병주 명지대학교 산업기술연구소 2001 産業技術硏究所論文集 Vol.20 No.-

With the fast development of Internet environment, e-Commerce is rapidly increasing. In the expanding e-Commerce environment, the need for a new e-Commerce systems that will deliver products to the customer rapidly and increase sales is growing bigger. These requirements brought many researches on recommender systems. However, until now, those recommender systems have a limit because it takes too much time for recommender systems to give customers the recommendations in real time, if the number of purchase data of customers is large. So this paper concerns on the recommender systems using collaborative filtering as one of the solutions to increase the competitive power. We proposed and experimented the more improved recommender systems which could decrease the data size to shorten the recommending time by using the representative category of the product which customers want to buy. Also, we design and implement a recommender system using Enterprise JavaBeans.

Vertical pattern of interconnects to bypass high strain near a hard die on a flexible substrate under mechanical bending

Jong-Sung Lee,Young-Joo Lee,Jaegeun Seol,Young-Chang Joo,Byoung-Joon Kim 대한금속·재료학회 2024 ELECTRONIC MATERIALS LETTERS Vol.20 No.2

The distinguishing feature of a fl exible electronic device is that it maintains its function even when the shape changes repeatedly. As the degree of integration of fl exible devices increases, revealing failure mechanisms and extending the lifetime ofthe fl exible devices are getting more diffi cult. One of the potential damage zones is the interface of heterogeneous materialcomponents, where strain can be localized due to the mismatch of mechanical properties. In this study, we investigate themechanically reliable interconnect design of the fl exible printed circuit board (FPCB) system in which the packaging chipis integrated. When the FPCB was bent, folding occurred at the edge of the packaging chip due to the high bending rigiditycompared with the plastic substrate and resulted in high strain concentration. By introducing interconnect architecture thatbypassed the strain concentration area around the packaging chip, mechanical damage of the interconnects was successfullyreduced. Through fi nite element simulation, the strain applied to the interconnect crossing the strain-concentrated regionwas predicted to be 2 times larger than that bypassing the strain-concentrated region, from 8.32 to 4.64%. In addition, thestrain gap of these two interconnects could be increased as the Young’s modulus mismatch between the packaging chip andthe substrate increased. This study is expected to improve the design guidelines to mechanically reliable interconnects inhighly integrated fl exible electronics.

Localization of Antigenic Sites at the Amino-terminus of Rinderpest Virus N Protein Using Deleted N Mutants and Monoclonal Antibody

Kang-seuk Choi,Jin-ju Nah,Young-joon Ko,Shien-young Kang,Yi-seol Joo 대한수의학회 2003 Journal of Veterinary Science Vol.4 No.2

of Antigenic Sites at the Amino-terminus of Rinderpest Virus N Protein Using Deleted N Mutants and Monoclonal AntibodyKang-seuk Choi*, Jin-ju Nah, Young-joon Ko, Shien-young Kang1 and Yi-seok JooNational Veterinary Research and Quarantine service, Ministry of Agriculture and Forestry, 480 Anyang, Gyounggi 430-824, Korea1Research Institute of Veterinary Medicine, College of Veterinary Medicine, Chungbuk National University, 48 Gaeshin-dong, Heungduk-gu, Cheongju, Chungbuk 361-763, KoreaReceived April 2, 2003 / Accept July 10, 2003J. Vet. Sci. (2003), 4(2), 167-173JOURNAL OFVeterinaryScience*Corresponding author: Kang-seuk Choi National Veterinary Research and Quarantine service, Ministry of Agriculture and Forestry, 480 Anyang, Gyounggi 430-824, Korea Tel: +82-31-467-1860, Fax: +82-31-449-5882 E-mail: choiks@nvrqs.go.kr

Full mouth rehabilitation of partially and fully edentulous patient with crown lengthening procedure: a case report

Seol, Hyon-Woo,Koak, Jai-Young,Kim, Seong-Kyun,Heo, Seong-Joo The Korean Academy of Prosthodonitics 2010 The Journal of Advanced Prosthodontics Vol.2 No.2

BACKGROUND. In order to restore severely attrited teeth properly, surgical intervention in the form of a crown-lengthening procedure may be required. And also, proper diagnosis and treatment sequencing is critical to obtain a successful results. Adequate diagnostic wax-up ensures good esthetics and healthy periodontal tissue. CASE DESCRIPTION. This clinical case report describes a diagnostically based protocol for restoration on mandibular anterior teeth with crown lengthening procedure and the treatment of partially edentulous mandible combined with an edentulous maxilla. In addition, the effort to prevent the combination syndrome was described. CLINICAL IMPLICATION. An interdisciplinary diagnosis and examination through visualization of the desired results ensure conservative and more predictable outcome.

중복비트 제거를 이용한 SPIHT 알고리즘의 개선에 관한 연구

설경호,이원효,주동현,김태형,김두영 동아대학교 정보기술연구소 2003 情報技術硏究所論文誌 Vol.11 No.1

This paper presents improvement of compression rate for SPIHT algorithm through redundancy bit removing. Proposed SPIHT algorithm uses a method to select of optimized threshold from feature of wavelet transform coefficients and removes sign bit only if coefficient is LL area. Experimental results show that the proposed algorithm achieves more improvement bit rate and more fast progressive transmission with low bit rate.

상부위장관 용종성 병변 265예의 내시경 및 병리조직 소견에 대한 연구

설상영,장윤식,윤상조,주남영,김민기,이상욱 인제대학교 1998 仁濟醫學 Vol.19 No.2

저자는 1988년 7월부터 1997년 12월까지 부산백병원에서 내시경 검사를 통해 상부 위장관의 용종성 병변이 확인된 265명 환자의 274 용종성 병변에서 용종을 올가미법, 박리 생검술, "O" ring 결찰술을 이용하여 절제술을 시행하였으며, 이들을 대상으로 임상적 및 조직학적 소견을 분석하였다. The gastrointestinal polyp is a premalignant lesion in varying degree. Polyps in the gastrointestinal tract can be removed by surgical excision, electrosurgical method, cryotherapy, regional radiotherapy and laser therapy with some limitations. Advance in fibroptic endoscopy have improved diagnostic capabilities and management in patients with gastrointestinal polyps and endoscopic polypectomy is the most simple and safe method in removal of these polyps. We have underwent endoscopic snare polypectomy, strip biopsy and "O"ring ligation on upper gastrointestinal tract polyps in 274 lesions of 265 patients who visited in Pusan Paik hospital from July 1988 to December 1997, and the clinical characteristics including histopathology has been evaluated. The results obtained were as follows : 1) The age distribution of patients were from 28-year old to 78-year old. The ratio of male to female was 1:1.45. 2) The common clinical symptoms presented were epigastric discomfort (38.4%), epigastric pain (28.1%) and indigestion (19.6%). 3) The number of patient wish single gastric polyp was 225(85%), and that of multiple gastric polyps was 40(15%). 4) The most common location of gastric polyps was antrum(47.2%) and followed by body(37.5%) and fungus(9.1%). 5) The removed polyps were mostly 0.5∼1cm(44.8%) in size and in the gross findings by Yamada classifications type II(41.9%) was most common. 6) Histological examinations of gastric polypoid lesions revealed that 63.1% of removed polyps were hyperplastic polyps and 24% of 7hose were adenomatous polyps. 7) Almost all cases showed no significant complication, but there were postpolypectomy abdominal pain in 20 cases(7.5%) and minor bleeding in 8 cases(3.0%). Finally, we concluded that endoscopic polypectomy is a safe and relatively simple procedure and postpolypectomy complication can be considerably reduced by conservative antiulcer therapy, So. most of polypoid lesions of upper gastrointestinal tract should be removed and meticulous pathological review is mandatory.

정신분열증 환자를 위한 무용/동작치료의 warm-up방법에 관한 연구

설주이,김나영 서울여자대학교 특수치료전문대학원 2007 심리치료: 다학제적 접근 Vol.7 No.2

The schizophrenic is not interested in the internal or external either, and they seem to be apathy, anhedonia, in which there is no expression of emotions, and depressed. That is why there is no consistency in expression of emotion. Also, they have some difficulties in communicating with others due to the lack of the depth and the focus of expression. Movement, Dance/Movement Therapy, which considers the movement as the expressive means, whose objective is to develop the social skills of clients and adaptation that make them to live in their community with the others. Also it is one of expressive art psychotherapies that develop and maintain the physical- self, self-esteem, and social relationship. The movements can be applied to find out the cause of their problem and to treatment. In addition, the meaning of movement is essential to Movement, Dance/Movement Therapy it is because that change in movement is the goal of treatment itself. From now on, this research is to study on theories of Delsarte, Laban, Bartenieff which influence on the Movement, Dance/Movement Therapy and to examine the characteristics of the movement in the schizophrenic based on their theories. Furthermore, the purpose of this study is to provide the fundamental data of Movement, Dance/Movement Therapy by proposing the models of warm-up methods that are critical in Movement, Dance/Movement Therapy as being of mental and physical preparation. The objectives of this research is as follow 1. Objective:what is the movement feature of the schizophrenic, which is based on theories of Delsarte, Laban, Bartenieff? 2. Objective:what is the approach of physical warm-up for the schizophrenic in Movement, Dance/Movement Therapy, which is based on theories of Delsarte, Laban, Bartenieff? The approach of this research is literature investigation. First of all, I collected and categorized the books, journals, and dissertations related to this study and I focused on Trinity theory of Delsarte, Effort from BESS of Laban, and Nine fundamental principals of Bartenieff. Also, I used the terms in the original words in English. The features of movements in schizophrenia patients based on these three theories are as below. Firstly, it is the disorganized movement. According to Trinity theory of Delsarte, there is no coordination in the head, trunk, arms, and legs which are physical, emotional, and intellectual zones. There is shot of the specialized roles of parts of body and combination of whole body in the dynamic alignment/connectivity principle of Bartenieff that says each part of body is connected and influences each others. Secondly, it is the movement uses the energy inappropriately. The patients are reported to move in lack of elements of effort which is supported by theory of Laban who believes the effort reflects the attitude, desire, and related emotions and Effort motivation theory of Bartenieff. In addition, it is diffused movement. It said that the head represents the intelligence in Trinity theory of Delsarte, however, the schizophrenic show the inappropriate connectivity in language and movement due to thinking disturbance caused by delusion. They are also known to use the indirect space that is disordered and inconsistent between direct and indirect as elements of space in effort, Laban. Insufficiency of spatial intention among Nine fundamental principals of Bartenieff brings about diffused movement as well. Finally, it is immobility. The deficiency of awakening of legs which play a role in transportation as physical active area, that of Laban’s effort, that of Batenieff’s effort motivation, and that of opportunity to express efforts is contributed. The patients also fail to weight shift that moves from one part to another part. I tried to find out the problems in movement of schizophrenia patients as symptoms of psychological and pathological, in terms of these features of movements. Furthermore, I proposed the models of warm-up methods for the therapeutic approach on basis of the theories of Delsarte, who regards the body in separated parts such as the head, trunk, hands/arms, and foots/legs, Laban’s effort, and Bartenieff’s Nine fundamental principals. It is possible to recognize the body which is the basic of movement and to have the movement experience applied by various efforts with the approaches of warm-up proposed in this study. That gives rise to modify the disorganized movement, diffused one, the movement uses the energy inappropriately, and immobility. Moreover, the schizophrenic can be aware the subject of movement, that is themselves, and their own emotions at the same time. Consequently, it can help them to have a good social relationship by being responsible to their behaviors. 본 연구는 무용/동작치료의 매개체인 움직임에 영향을 준 Delsarte, Laban, Bartenieff의 움직임 이론을 알아보고 이들의 이론을 바탕으로 정신분열증 환자들의 움직임의 특징을 정리하고자 한다. 그리고 무용/동작치료 안에서 가장 중요한 역할을 하는 정신적, 신체적 준비과정인 warm-up방법의 Model을 제시하는 것으로 현장의 무용/동작치료과정에서의 기초자료를 제공하는 데 그 목적이 있다. 연구의 과정은 문헌 고찰의 방법을 이용하였다. 본 연구와 관련 있는 도서 및 학술지 석·박사 논문을 중심으로 수집, 분류하였고 본 연구에서는 Delsarte의 삼위일체론, Laban의 BESS 중 Effort, Bartenieff의 9가지 기초 원리에 집중하고 논의하였고 움직임 이론의 용어는 원어를 사용하였다. Delsarte, Laban, Bartenieff의 움직임 이론을 통한 정신분열증 환자의 움직임의 특징은 첫째, 와해된 움직임이다. 둘째, 적절한 에너지 사용이 부적절한 움직임이다. 셋째, 산만한 움직임이다. 넷째, 부동성의 움직임이다. 신체를 머리, 몸통, 팔/손, 다리/발로 나누어 본 Delsarte의 삼위일체론을 바탕으로 Laban의 Effort, Bartenieff의 9가지 움직임 원리를 이용하여 warm-up방법의 Model을 제시하였다. 본 연구에서 제시한 warm-up방법을 통해 움직임의 기초 수단인 신체 인식, 다양한 에포트를 적용한 움직임경험을 통해서 정신분열증 환자들의 와해된 움직임, 에너지 사용이 부적절한 움직임, 산만한 움직임, 부동성 움직임의 변화를 줄 수 있고 움직임의 주체가 자신임을 인식하게 되며 동시에 자기 감정을 인식하고 더 나아가 자신의 행동의 책임감을 증가시킬 수 있어 움직임을 통해 긍정적인 대인관계를 맺는데 도움이 될 것이라 기대한다.

금속성 Clip을 조기위암의 수술전 표식자로 사용한 1례

설상영,김환태,이상혁,정정명,최하진,최영길,김영주 인제대학교 1994 仁濟醫學 Vol.15 No.3

조기위암환자에서 금속성 clip을 이용하여 병변의 상부 경계부에 표식을 시행하여 수술시행시 일차적인 병소확인 및 절제 범위결정에 도움을 준 1례를 경험 하였기에 보고하는 바이다. Early gastric cancer has a good prognosis with early diagnosis and curative surgery, 5 year survival rate reaching up to 95% But in the case of small and superficial lesion sometimes it is very diffiuclt to point out actual lesion in the operative field and this will pose considerable difficulty in deciding resection margin. We used HX-3 metal clip(Olympus Corp.) as a gross marker of EGC through gastrofiberscope and this clip offered remarkable ease in identifying actual lesion in the operative field. We report this case with the review of the literature.

Measurement of tumor volume by PET to evaluate prognosis in patients with head and neck cancer treated by chemo-radiation therapy.

Seol, Young Mi,Kwon, Bo Ran,Song, Moo Kon,Choi, Young Jin,Shin, Ho Jin,Chung, Joo Seop,Cho, Goon Jae,Lee, Jin Chun,Lee, Byung Joo,Wang, Soo Geun,Kim, Hak Jin,Kim, Won Taek,Kim, Seung Jang,Yun, Eun You Acta Oncologica 2010 Acta Oncologica Vol.49 No.2

<P>PURPOSE: To evaluate the prognostic value of the metabolic tumor volume measured on 18F-fluorodeoxyglucose positron emission tomography (FDG-PET) imaging and other clinical factors in patients treated for locally advanced head-and-neck cancer (HNC) at a single institution. MATERIALS AND METHODS: Between June 2005 and August 2008, 59 patients with HNC that underwent pretreatment FDG-PET studies received neoadjuvant chemotherapy and radiation therapy. Metabolically active tumor regions were delineated on the pretreatment PET scans by a fixed SUV of 2.5. We evaluated the relationship of the 18F-fluorodeoxyglucose-PET maximum standardized uptake value (SUV) and the metabolic tumor volume (MTV) with the progression-free survival (PFS) and overall survival (OS). RESULTS: The MTV and lymph node metastasis were predictive of the PFS and OS. The lymph node status did not correlate with the MTV. A higher MTV of 9.3 cm(3) was significantly associated with an increased risk of recurrence (2.19-fold, p = 0.006) and death (1.62-fold, p = 0.051). Separation of patients with tumor volumes <or= 9.3 cm(3) and no lymph node disease vs. any other combination was strongly predictive of the PFS and the OS. CONCLUSIONS: MTV and lymph node status were prognostic values associated with survival. Quantitative measurement of tumor volume separates patients with a good prognosis from those with a poorer prognosis. A subset of patients with relatively small tumors and no lymph node involvement did very well.</P>

Anti-Aging Effects of the Hanwoo Leg Bone, Foot and Tail Infusions (HLI, HFI and HTI) on Skin Fibroblast

Seol, Ja young,Yoon, Ji Young,Jeong, Hee Sun,Joo, Nami,Choi, Soon Young Korean Society for Food Science of Animal Resource 2016 한국축산식품학회지 Vol.36 No.2

Many researchers revealed that collagen contribute to maintaining the skin’s elasticity and inhibit wrinkling of skin. Korean native cattle (Hanwoo) bone (leg bone, foot and tail) infusion contains the various inorganic materials, collagen and chondroitin sulfate. All of this, a large quantity of collagen is included in Hanwoo infusion. Therefore, this study emphasized on the effects of collagen in the Hanwoo bone infusion. For the first time, Hanwoo bone infusions were directly added to the media of Human Dermal Fibroblast (NHDF-c) to test anti-aging effects. First, it was identified that growth rate of skin fibroblast was increased. Furthermore, the Hanwoo bone infusion increased a 50% of fibroblast collagen synthesis. Also, suppression of skin fibroblast aging was confirmed by treatment Hanwoo bone infusion. In conclusion, this study demonstrates the effects of infusion made from Hanwoo leg bone, foot and tail on anti-aging, wrinkle inhibiting and skin fibroblast elasticity maintaining. Therefore, this study identified that traditional infusion has effects that are good for skin elasticity.