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김진휘(Jin Hui Kim),김선란(Sun Ran Kim),노지혜(Noh Ji Hye),이상원(Sang Won Lee),김용세(Yong Se Kim) 한국HCI학회 2012 한국HCI학회 학술대회 Vol.2012 No.1
제품-서비스 통합시스템(Product-Service System, PSS)은 서비스 중심의 패러다임 변화에 대처하고 이를 이용한 새로운 비즈니스 모델의 창출로 경쟁력을 높일 수 있는 새로운 개념으로 제시되고 있다. 제품-서비스 통합시스템은 (1)이해관계자(stakeholder) 요구조건 및 목표 가치 도출 (2)관련자 행위 디자인 (3)PSS 기능 모델링 (4)기능-행위 연계 및 PSS 개념안 생성 (5)PSS 개념안 구체화 (6)PSS 개념안 프로토타이핑의 단계로 이루어진다. PSS 개념만으로는 시장에서의 성공을 보장하기 힘들기 때문에 PSS 디자인 프로세스 안에서는 비즈니스 모델이 뒷받침 되어야 한다. PSS 전략을 도출하기 위하여 다양한 PSS 비즈니스모델 사례를 분석 할 수 있을 뿐만 아니라, 축적된 사례를 바탕으로 새로운 비즈니스모델의 도출도 가능하다. 본 연구에서는 이를 우산대여서비스 사례로 설명하고자 한다. The discussion of this paper starts with a case study using the Product-Service Systems (PSS) design process which being developed by the PSS Design Project Consortium sponsored by the Korean Ministry of Knowledge Economy. The proposed PSS stands for systematically integrated planning, concept design and realization design reflecting diverse viewpoint and essentially creates people-centred value. The PSS design process can be broken down into the following 6 major steps: (1) Requirement Identification and Value Targeting, (2) Stakeholder Activity Design, (3) PSS Function Modelling, (4) Function-Activity Mapping and PSS Concept Generation, (5) PSS Concept Detailing, (6) PSS Concept Prototyping (Kim et al. 2011). This paper studies a case of the umbrella rental service which operates in Korea by using proposed PSS design process and conducts to investigate the effectiveness of the proposed PSS design process.
김진휘(Jin Hwi Kim),문희봉(Hee Bong Moon),안현영(Hyun Young Ahn),이지현(Jee Hyun Lee),김사진(Sa Jin Kim),신종철(Jong Chul Shin),김수평(Soo Pyung Kim),이현정(Hyun Jeong Lee) 대한산부인과학회 2002 Obstetrics & Gynecology Science Vol.45 No.8
There is high prevalence of HBV infection in Asian countries including South Korea. In fact, 8% of Koreans are HBV carriers, and 20-25% of them progress to liver cirrhosis. Liver cirrhosis, known to be the last stage of chronic liver diseases, is the most prominent cause of death in Korean males in their forties. However, women participation to social activities increased and also increased psychological stress that changed life style now days, and due to increased alcohol consumption liver disease has become a serious problem in korean women population. But as liver cirrhosis usually occurs after the menopause, and decreased fertility in cirrhotic patients, pregnancy in women with liver cirrhosis is rare. However, improved general care increased pregnancy rates and reports of pregnancy in women with liver disease worldwide. Studies on the effect of liver cirrhosis on pregnancy and the effect of pregnancy on the clinical progression of liver cirrhosis have not been well established, and the continuation of pregnancy in a patient with liver cirrhosis has been controversial. Recently, it has become favorable for the argument that pregnancy can be kept as long as liver function is maintained at certain level and portal hypertension is mild. The most common and fatal maternal complication is gastrointestinal hemorrhage. It increases maternal mortality and intrauterine developmental defect resulting in neonatal morbidity. Although South Korea is an area of high prevalence of HBV infection, there are few reports of pregnancies in women with liver cirrhosis. Recently, we have experienced the 3 cases of pregnancies in women with progressive liver cirrhosis who became pregnant. Although thrombocytopenia and increased coagulopathy complicated the pregnancy course, all women delivered healthy babies and were discharged in good condition.
한국인 대장암 환자에서 serine/arginine-rich splicing factors 2 (SRSF2) and SRSF4 발현
김진휘(Jin-Whi Kim),박도심(Do-Sim Park),박원철(Won-Cheol Park),안소라(Sora Ahn),강동백(Dong-Back Kang),김근영(Keun-Young Kim),김용(Yong Kim) 대한종양외과학회 2016 Korean Journal of Clinical Oncology Vol.12 No.2
Purpose: Splicing factors play important roles in tumorigenesis. Serine/arginine-rich splicing factors 2 (SRSF2) and SRSF4 proteins, the members of SR family proteins, are dysregulated in various cancers. However, their protein expression levels and diagnostic values are unclear in colorectal cancer. Methods: We quantified the protein levels of SRSF2, SRSF4, and previously known colon cancer markers (heterogeneous nuclear ribonucleoprotein A1 [HNRNPA1] and carcinoembryonic antigen [CEA]) in tumor compared with adjacent normal-looking areas (non-tumor) of the colon in Korean patients with colon cancer using immunoblot analysis. Results: The protein levels of HNRNPA1 and CEA were remarkably increased in tumor compared to non-tumor tissue and up-regulated in all of the tumor samples. However, the protein levels of SRSF2 and SRSF4 in tumor tissue were reduced in contrast with those of non-tumor tissue. Conclusion: None of the SRSF proteins were significantly different between the low (≤II) and high (>II) stages.
김민정 ( Min Joung Kim ),김사진 ( Sa Jin Kim ),정문영 ( Moon Young Jeong ),김진휘 ( Jin Hwi Kim ),이연정 ( Yun Jung Lee ),김은중 ( Eun Jung Kim ),김진아 ( Jean A Kim ),서경윤 ( Kyoung Yun Seo ),박종섭 ( Jong Sup Park ),허수영 ( So 대한산부인과학회 2004 Obstetrics & Gynecology Science Vol.47 No.12
Although parovarian cysts constitute 10-20% of all adnexal masses, malignant parovarian tumors are extremely rare. Due to the rarity of this lesion, there are controversies concerning the origin, clinical behavior, and prognosis of these tumors. Currently
고도 조건에 따른 수소 연료전지 냉각 공기 유동 시뮬레이션
김진휘(Jinwhee Kim),손형락(Hyounglak Son),박수현(Suhyeon Park) 항공우주시스템공학회 2023 항공우주시스템공학회 학술대회 발표집 Vol.2023 No.05
최근 친환경 기술이 대두되면서 항공기 추진을 위한 수소 연료전지에 대한 관심이 증가하고 있다. 수소 연료전지는 작동하는 동안 많은 열을 발생시키므로 냉각이 필수적이며 특히, 공기 냉각 방식은 외부 조건에 영향을 많이 받으므로 연료전지의 성능 또한 외부 영향을 피하기 어렵다. 이 연구는 고도 조건에 따른 공랭식 수소 연료전지의 내부 공기 유로를 통한 냉각 유동 특성을 분석하는 것을 목적으로 한다. 고도에 따라 변화하는 공기의 온도, 압력 등을 조건으로 두고 수소 연료전지 내부 유로의 공기의 속도 벡터와 유동 특성을 시뮬레이션을 통해 분석하고 냉각에 미치는 영향을 분석하였다. 본 연구는 항공용 수소 연료전지의 성능을 예측하고 향상시키는데 기여할 것으로 기대된다.