정보가전 에이전트

송준현(Joon-Hyun Song),김일연(Il-Yun Kim),김일곤(Il-gon Kim) 한국정보과학회 2002 한국정보과학회 학술발표논문집 Vol.29 No.2Ⅱ

정보가전 에이전트는 가정 내 가전제품을 외부에서 제어하기 위한 에이전트이다. 단순한 관리가 아닌 에이전트로 하여금 좀 더 지능적인 가전제품 관리를 하게 한다. 정보가전 에이전트는 홈 서버에서 작동하는 에이전트와 PDA에서 작동하는 에이전트로 구성된다. 정보가전 에이전트는 전력량, 수도 사용량 제어와 가전제품 제어 기능과 보안 관련 서비스를 제공한다. 두 에이전트는 FIPA(Foundation for Intelligent Information Agent)에서 정의된 규격에 맞게 만들어지기 때문에 FIPA 명세서를 따르는 다른 에이전트와 자유로운 통신이 가능하다.

절점 밀도 및 이선형 보간 기반 자연적 경계면을 갖는 3차원 위상 최적 설계 기법

송준현(Joon-Hyun Song),김철(Cheol Kim) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11

In a traditional topology optimization method, material properties are usually distributed by finite element density and visualized by a gray level image. The distribution method based on element density is adequate for a great mass of 2-D topology optimization problems. However, when it is used for 3-D topology optimization, it is always difficult to obtain a smooth model representation, and easily appears a virtual-connect phenomenon especially in a low-density domain. The 3-D structural topology optimization method has been developed using the node density instead of the element density that is based on SIMP (solid isotropic microstructure with penalization) algorithm. A computer code based on Matlab was written to validate the proposed method. When it was compared to the element density as design variable, this method could get a more uniform density distribution. To show the usefulness of this method, several typical examples of structure topology optimization are presented.

검사실 정보 교류를 위한 임상문서표준규격의 적용

송준현(Joon Hyun Song),김일곤(Il Kon Kim),이성현(Sung Hyun Lee),도형호(Hyoungo Do),예정훈(Jung Hoon Yeah) 한국정보과학회 2007 한국정보과학회 학술발표논문집 Vol.34 No.1B

HITSP(Healthcare Information Technology Standards Panel)은 헬스 케어 관련 산업의 상호 운용성을 위해 일반적으로 수용되고 유용한 표준들을 선별하여 표준 세트를 제공하는 것을 목적으로 한다. HITSP에서는 평생전자건강진료정보(EHR, Electronic Health Record)의 활성화를 위해 첫 번째 해결해야 할 영역으로 검사실 결과 정보 교류를 정하였다. 이에 본 논문에서는 검사실 결과 정보 교류를 위한 방법으로 HITSP에서 제시하는 HL7 버전 2.x 메시지와 CDA 방법 중 인증(authentication) 처리가 가능하고 영속성(persistence)이 있는 CDA 방법을 선택하였다. 또한 CDA를 작성하고 처리하는 방법을 제시하고, 더 나아가 평생전자건강진료정보(EHR)를 위해 CDA를 적용하여 검사실 결과 정보를 교류하여 보았다. 이에 병원과 EHR 시스템의 상호 운용성이 높아져 진료 과정의 효율성을 높일 수 있었고 환자와 의료진에게 양질의 검사 결과 정보를 제공할 수 있었다.

자가면역질환 모델로서 류마티스관절염 활막조직에서 면역글로불린 유전자 이용에 관한 연구

이수곤 ( Soo Kon Lee ),송준현 ( Joon Hyun Song ) 대한류마티스학회 1994 대한류마티스학회지 Vol.1 No.2

Objective: To gain insights into structural characteristics of immunoglobulin kappa chain repertoire expressed in the inflammed synovium of rheumatoid arthritis (RA), we analyzed Vκ transcirpts expressed in the synovium of a patient with longstanding RA and compared to those expressed in the PBLs of RA and normal controls. Methods: RT-PCR was done to amplify kappa chain transcripts from RA synovial lymphocytes and the cDNA sequences were compared to those from PBL of RA patient or normal control. Results: Kappa chain repertoire from RA patient`s synovial lymphocytes or PBL revealed increased somatic mutation and unusually long complementarity determining region (CDR) 3 compared to normal control. Conclusions: These changes in kappa chain repertoire in RA patient are suggesting that the antibody repertoire expressed in the synovium or PBL is unique and may be related with systemic dysregulation of B cell development.

PRT 차량용 수직이송장치의 개발을 위한 구조강도 평가

강석원,엄주환,정락교,송준현,Kang, Seok-Won,Um, Ju-Hwan,Jeong, Rag-Gyo,Song, Joon-Hyun 대한기계학회 2015 대한기계학회 논문집. Transactions of the KSME. C, 산업기술과 혁신 Vol.3 No.3

본 논문에서는 PRT(Personal Rapid Transit) 차량의 수직이송을 위한 장치를 개발하는 과정에서 수행된 주요 구조물의 정적 구조적 안전성 평가 결과를 다룬다. 지금까지 노선상에서 승객이 탑승한 상태에서 운영중인 차량의 수직이송에 대한 연구는 전무하며, 이는 기존의 2 차원 적인 교통운영 체계의 한계를 극복하는데 기여할 수 있을 것으로 기대된다. 특히, 본 연구에서 제안된 수직이송장치는 순환컨베이어 방식으로 연속 이송이 가능해서 통행량이 많은 지역에도 적용이 가능하다. 본 시스템이 물류분야에서 많이 사용되어 왔지만, 수직이동 시 차량의 무게에 의한 하중은 일반적인 물류의 수송과는 다르게 집중하중 형태로 컨베이어에 가해지기 때문에 이에 대한 구조적 안정성 평가는 필수적이다. 본 논문에서는 상용 유한요소 해석 프로그램인 $Ansys^{(R)}$를 이용해서 수직이송 장치의 기본 설계(안)의 구조적 안정성을 수치해석적 방법에 의해 평가하고자 한다. This paper presents numerical results of static structural stability analysis in development of a vertical transfer device of a PRT(Personal Rapid Transit) vehicle. The vertical transfer of a fully occupied vehicle operating on a road network is the first attempt, which is expected to contribute to overcome the limitations of conventional 2-dimensional operation mode. In particular, the vertical transfer apparatus designed based on vertical circulating conveyors is capable of continuous transfer without time delay so that it enables to accommodate a high traffic density. This system has been frequently used in a logistics field; however, it is essential to assess a structural integrity because an external force by a vehicle weight is exerted on the conveyors in the form of a concentrated load unlike a conventional logistic transport. In this study, prior to the production process, the structural performance of the pilot design in an early stage is numerically evaluated using the commercial finite element method (FEM) solver (i.e., $Ansys^{(R)}$).

베체트병 환자에서 종통 (heel pain)의 임상적 의의

김홍승 ( Hong Seung Kim ),이지수 ( Ji Soo Lee ),이찬희 ( Chan Hee Lee ),송준현 ( Joon Hyun Song ),방동식 ( Dong Sik Bang ),이수곤 ( Soo Kon Lee ) 대한류마티스학회 1995 대한류마티스학회지 Vol.2 No.2

Objectives: To evaluate the clinical significance of heel pain, a frequently associated enthesopathy in Behcet`s disease and to evaluate the association with seronegative spondyloarthropathy. Methods: 15 Behcet`s disease patients diagnosed by International Study Group for Behcet`s disease criteria with arthritis were studied prospectively in the period of 1994. 3. 1-1995. 3. 31. Modified New York criteria was adopted for the diagnosis of ankylosing spondylitis. The patients were grouped into two by the presence of heel pain which was documented as tenderness on heel. Results: There were 6 patients in the heel pain group and 9 patients in the non-heel pain group. Clinical characteristics were not significantly different between the two groups. Ankylosing sponaylitis was not associated in either group. ESR was higher with the value of 41.2mm/hr in heel pain group than 25.7mm/hr in non-heel pain group but it was not significant. In heel pain group, one patient showed HLA-B27 positivity, one patient showed erosive bone change, and one patient showed sacroiliitis but non-heel pain group showed no HLA positivity or bony changes. Conclusions: We find that subset of Behcet`s disease patients with heel pain showed tendency to have higher inflammatory activity, erosive bone change, sacroilitis and HLA B-27 association, thus should be classified as seronegative spondyloarthropathy but seems to be different category from ankylosing spondylitis. These observations should be conducted in a large number of patients to establish the clinical value.

임상문서표준규격내 검사실 용어의 LOINC 매핑을 위한 LMOF 전처리 도구 (pp.27-28)

도형호(Hyoungho Do),김일곤(Il Kon Kim),이성기(Sungkee Lee),곽연식(Yun Sik Kwak),송준현(Joon Hyun Song),이성현(Sung Hyun Lee),예정훈(Jung Hoon Yeah) 한국정보과학회 2007 한국정보과학회 학술발표논문집 Vol.34 No.1A

노령층 급성백혈병의 치료성적

이승태(Seung Tae Lee),민유홍(Yoo Hong Min),한지숙(Jee Sook Hahn),장길진(Gil Jin Jang),송준현(Joon Hyun Song),이선주(Sun Ju Lee),고윤웅(Yun Woong Ko) 대한내과학회 1995 대한내과학회지 Vol.49 No.2

N/A Objectives: Approximately 40-60% of acute myelogenous leukemia(AML) and 30% of acute lymphoblastic leukemia(ALL) occur in patients over 60 years old. The elderly leukemic patients showed less complete remission rate and shorter survival, and there have not been universal agreements on the desirable anti leukemic therapy for the elderly patients with acute leukemia. We investigated the clinical characteristics and therapeutic outcomes of 22 patients aged 60 or over diagnosed as acute leukemia during the last 5 years. Methods: Between January 1988 and December 1992, 31 patients aged 60 or over among 174 patients with newly diagnosed acute leukemia, were entered into this study. Among 31 elderly patients, 22 patients underwent remission induction chemotherapy. Remission induction chemotherapy in patients with AML consisted of TAD chemotherapy and low dose cytarabine, and patients with ALL received VPD chemotherapy. Clinical characteristics and therapeutic outcomes of the patients were analyzed retrospectively by review of patiet's medical records. Results: 1) Among 174 patients with acute leukemia, 31 patients were aged 60 or over(17.8%), consisted of 27 AML and 4 ALL patients and male to female ratio was 1: 1.1 median age of them was 65 years. There were no differences in hemogram, bone mar- row findings and complications such as infection, bleeding at the time of initial diagnosis between elderly patients and younger patients. 2) Of 22 elderly patients with acute leukemia received remission induction chemotherapy, twelve patients(55%) achieved complete ramission, comparable to that of younger patients(61%). But median duration of disease free survival and overall survival were significantly shorter(143 days vs 549 days, p= 0.001 and 251 days vs 368 days, p=0.008 respectively) in elderly patients. Complete remission rate of 18 elderly patients with AML was 50%, comparable to that of 77 younger patients with AML(64%), but median duration of disease free survival was significantly shorter(144 days vs 625 days, p=0.014). 3) Complete remission was achieved in 6(60%) of 10 elderly patients with AML received TAD induction chemotherapy, comparable to that of younger patients with AML received TAD chemotherapy(62.7 %) and early death rate was also comparable(10% vs 9% ). There was a trend toward longer durations of disease free survival in younger patients compared to that of elderly patients(625 days vs 144 days). Of whom achieved complete remission, 3 elderly AML(50% ) underwent consolidation chemotherapy as postremission chemotherapy and 88% of younger patients with AML underwent consolidation chemotherapy. 4) Of the 8 elderly patients with AML received low dose cytarabine as induction chemotherapy, 3 patients achieved complete remission and median duration of disease free survival was 85 days, trends toward lower remission rate and shorter duration of disease-free survival compared to that of patients received TAD induction chemotherapy(37.5% vs 60%, 85 days vs 144 days, respectively), but early death rate was camparable(12% vs 10% ). 5) There were no differences in durations of neutropenia, thrombocytopenis, transfusion requirement, infection and bleeding of grade 3 of more between elderly and younger patients with AML during remission induction chemtherapy. Elderly AML patients received TAD chemotherapy needed more frequent platelet transfusion compared to elderly patients received low dose cytarabine as induction chemotherapy(60 units vs 38 unit, p=0,045). Conclusion: The complete remission rate of the elderly patients with acute leukemia after remission induction chemotherapy was comparable to that of the younger patients, and further evaluations about more intensive postremission chemotherapy and supportive cares involving the use of hematopoietic growth factors in the elderly may be warranted.