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Research of circuit manufacturing for new MID technology development
윤해룡,김호찬,이인환 대한기계학회 2017 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.31 No.12
Recently in the electronics industry, the circuits are growing more and more complex as the number of components increase due to high-performance electronics product development. Accordingly, the trend is smaller, lighter, and higher-concentration electrical circuit, and the new process technology development for such is persistently in progress. Currently, electronics products are restricted in their forms for PCB and product form design due to the increase in the number of components, and there are not only the environmental issues but also unnecessary labor due to the increase in assembly processes. PCB production technology is cheap and convenient, yet has environmental issues. In order to produce PCB, various environmentally harmful chemical substances (Halogen, sulfuric acid, chloric acid, nitric acid, hydrofluoric acid, caustic soda, thinner, etc.) are needed, and a separate chemical substance monitoring system is needed. MID technology can omit such PCB production process and form circuit on the product surface.
Research for improved flexible tactile sensor sensitivity
윤해룡,김호찬,이인환 대한기계학회 2015 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.29 No.12
With the development of robotic technologies, in recent years these technologies have been applied to multidisciplinary fields of study. To operate similarly to a human being, many robot technologies require devices that can receive exterior stimulus, temperature, visualdata, and the sense of smell, etc. The robot’s hand needs sensor devices that can receive exterior stimuli in order to operate similarly tohuman skin. The flexible tactile sensor for the robot has to be manufactured to have a shape similar to the shape of human skin. The researchstudied the development of a system and materials that will enable exterior stimuli to be received effectively. This research usedcarbon nano tube as a material. Carbon nano tube is used because it has a high electrical conductivity and outstanding mechanical characteristics. In addition, the two composite Materials are used to improve the stimulation sensitivity at different rates, the flexible tactilesensor to measure the sensitivity. Using 3D printing technology, the fabrication of a flexible tactile sensor system is introduced.
항암화학요법과 수술을 통해 완전 관해를 획득한 진행성 십이지장 유두암 증례
윤해룡,정문재,방승민,박승우,송시영,Hae Ryong Yun,Moon Jae Chung,Seungmin Bang,Seung Woo Park,Si Young Song 대한소화기암연구학회 2014 Journal of digestive cancer reports Vol.2 No.2
Ampulla of Vater (AOV) cancer is rare malignant tumor which arises within the vicinity of the AOV. Metastatic AOV adenocarcinoma has poor prognosis, with an overall survival rate at 2 years ranging from 5 to 10%. The Surveillance, Epidemiology and End Results Program of the National Cancer Institute indicated that lymph node metastasis was present in as many as half of patients which were associated with poor prognosis and liver was the second most common site of distant metastasis in AOV cancer. In this case report, we describe a case of complete resolution of AOV cancer, which was already spread to retroperitoneal lymph node and liver. The patient underwent gemcitabine plus cisplatin chemotherapy for palliative aim. After 12 month of chemotherapy, image study showed partial remission, so intraoperative radiofrequency ablation therapy and pylorus preserving pancreaticoduodenectomy was done. AOV cancer was completely resected and the patient was followed up without recurrence for 7 months.
계면에 존재하는 구멍의 모양이 동적 계면균열전파에 미치는 영향
윤해룡,이억섭,Yin, Hai-Long,Lee, Ouk-Sub 대한기계학회 2002 大韓機械學會論文集A Vol.26 No.7
The dynamic photoelasticity with the aid of Cranz-Shardin type high speed camera system is utilized to record the dynamically propagating behavior of the interface crack. This paper investigates the effects of the hole (existed along the path of the crack propagation) shape on the dynamic interface crack propagation behavior by comparing the experimental isochromatic fringes to the theoretical stress fields.
줄 히팅 기술 적용 에너지 효율 향상된 핫 스탬핑 공정 60% 기술 개발
윤해룡,홍형길,강민수,박관형,권태희,최현수,차승훈,임정식,김태훈,조용준 한국기계가공학회 2024 한국기계가공학회지 Vol.23 No.1
The aim of this study is to develop a hot stamping method using Joule heating technology, heating materialcooling technology, prototype molding, and evaluation. A prototype molding infrastructure was established bydeveloping material heating equipment applied with Joule heating technology, that could improve energyefficiency by more than 60% compared with existing electric heating furnaces, and hybrid cooling type moldsand spray equipment. The effectiveness of this process technology was verified through confirmation andevaluation of the moldability of the prototype.