UX 디자인 시나리오 구조설계에 대한 연구

김규현(Kim, Gyuhyun),김정규(Kim, Jungkyu) 한국디자인지식학회 2010 디자인지식저널 Vol.15 No.-

유비쿼터스와 디지털디자인의 패러다임은 다양한 범위에 영향을 미치고 있으며, 이것은 의료산업과 같은 인간에게 가장 기본적인 욕구충족 분야에도 영향을 미치고 있다. 급속한 패러다임 변화의 영향으로 사람들은 미래환경의 불확실성에 대하여 두려워하기도 하고, 한편으로는 새로운 가능성에 대해서 미래를 예측할 수 있는 다양한 활동들을 시도하고 있다. 이러한 환경하에서 복잡하고 불확실한 미래를 예측하고, 미래의 생활을 미리 디자인해 볼 수 있는 다양한 시나리오의 개발이 필요하며, 무엇보다 사용자 중심적인 시각에서의 디자인시나리오의 개발이 필요하다. 본 연구에서는 사람들이 미래 환경에서 필요로 하고 또한 효과적이고 편리하게 활용할 수 있는 u-healthcare 관련 서비스 컨텐츠를 제안하기 위하여, 사용자경험에 기반한 디자인 시나리오 구조설계 모델을 제안하고자 한다. Ubiquitous and digital design paradigm influence diverse range, it affects the field of most basic needs like the medical industry for humans. The influence of the impact of rapid paradigm shift, people are afraid about uncertainties of the future environment and on the other hand, about new possibilities are trying the various activities to predict the future. Under these circumstances, we have to develope the various scenarios which are able to predict the complex and uncertain future and to design future life, and above all, it is necessary to develope user-centered design scenarios. In this study, to offer u-healthcare-related services content to use effective and convenient and to needs in the future environment by people, to Develope design scenarios based on user experience and it is proposed organizational structure plan methodology to Develope these design scenarios

4차산업혁명 기술의 환경분야 적용 및 전망 - 환경정책기반공공기술개발사업 과제를 중심으로 -

김규현(Gyuhyun Kim),한인섭(Ihnsup Han) 대한환경공학회 2022 대한환경공학회지 Vol.44 No.11

목적 : 최근 국내외 전 분야에서 4차산업혁명에 대한 논의가 활발히 진행되고 있으며 환경분야에서도 관련된 연구개발이 폭넓게 진행되고 있다. 4차 산업혁명의 핵심은 초연결, 초지능 및 융복합이다. 주요기술은 인공지능(Artificial Intelligence), 사물인터넷(Internet of Things), 차세대 통신기술(Fifth Generation communication technology), 로봇, 블록체인, 드론, 3D(Three Dimension) 프린터, 빅데이터, 무인 운송수단, 바이오 공학, 신소재, 공유경제, VR/AR (Virtual Reality/Augmented Reality) 등이 있다. 4차산업혁명 기술의 환경적용 사례를 통해 발전방안을 모색하고자 한다. 방법 : 2011년에서 2020년까지 추진된 환경정책기반공공기술개발사업 과제를 중심으로 4차산업혁명기술이 적용된 사례를 분석하고 향후 전망을 도출하였다. 결과 및 토의 : 4차산업기술은 침수를 대비하게 위해 인공신경망을 이용한 유량예측시스템, 증강현실을 이용한 상하수관로 정보 제공, 드론을 이용한 환경감시 및 식생입체 구조 판별, 인공지능을 이용한 동물 울음소리 기반 개체식별 기술 등 다양한 분야에 적용되었다. 앞으로 환경분야의 설계, 운영, 유지관리, 조사, 감시, 서비스 제공 등 다양한 분야에서 4차산업혁명 기술이 적용되어 작업환경 개선, 서비스 품질 향상, 운영 효율화 등이 예상된다. 결론 : 스마트 환경기술 전환에 따라 산업 고도화 및 고부가가치 창출이 가능할 것으로 예상되며 이를 위해 정책적 지원과 기술 개발이 지속적으로 추진되어야 한다. Objectives : Recently, the Fourth Industrial Revolution has been actively discussed in all fields around the world. And the related R&D(Research and Development) has been widely conducted in the environmental field. The core of the Fourth Industrial Revolution is hyperconnectivity, superintelligence, and convergence. Major technologies related with it are AI(Artificial Intelligence), IoT(Internet of Things), 5G(Fifth Generation communication technology), robots, blockchain, drones, 3D(Three Dimension) printers, big data, unmanned transportation, biotechnology, new materials, sharing economy, and VR/AR(Virtual Reality/Augmented Reality), etc. It is intended to seek development plans through the examples of the 4th industrial revolution technology’s environmental application. Methods : In concentration of the public technology development project, based on environmental policy, conducted from 2011 to 2020, some cases of the 4th industrial revolution technology’s environmental application have been analyzed and the future prospects have been derived. Results and Discussion : The 4th Industrial Revolution technology has been applied in various fields such as design, operation, maintenance, investigation, monitoring, and service provision in the environmental field. Therefore, in the future, it is expected that there will be working environment improvement, the progress of service quality and operational efficiency. Conclusion : With the transition to smart environmental technology, it is expected that it will be possible to advance the industry and create high value-added things. To do so, government policy support and technology development should be continuously executed.

Construction and enzyme assay of sucrose phosphate synthase/phosphatase fusion proteins for enhancing sucrose production in Synechocystis sp. PCC 6803

Jeongwoo KIM,Hyunuk CHO,Gyuhyun KIM,Jongmoon PARK 한국생물공학회 2019 한국생물공학회 학술대회 Vol.2019 No.4

다위니즘으로 본 디자인의 진화

김규현(Kim Gyuhyun),김효일(Kimm Hyoil) 한국디지털디자인학회 2010 디지털디자인학연구 Vol.10 No.4

디자인은 시대와 상황 때와 장소에 따라 다양하게 변화되어 왔으며 이렇게 변화되는 과정은 단지 효용가치가 아니라 주변 환경과의 인과관계를 통해 필요성이 증대되어 변화되어 온 것이다. 디자인은 이러한 주변 환경과 관계맥락의 원인으로 인해 변화되기 때문에 진화된다는 이론적 가설을 세우게 되었다. 본 연구는 디자인의 발전 또는 변화되는 현상을 사회문화의 현상적 관점에서 추론하여 디자인과 진화론의 연결 가능성을 타진하고 새로운 디자인 환경에 대하여 동화되어 진화되는 과정을 다위니즘의 진화론 입장에서 해석하고자 하였다. 디자인에 진화라는 개념적 속성을 수용하고 디자인의 변화과정으로 해석하기 위해서는 디자인의 창조과정에 개입하는 수용조건인 변이 경쟁 과정의 자연선택에 의한 진화과정에 대입되어야 한다. 본 연구는 다양한 디자인의 가치를 측정하고 디자인의 발전과정을 진화론적 관점에서 투영함으로서 디자인을 스스로 변화하는 유기체의 속성에 대입하고자 한다. 이러한 근원적 맥락에는 디자인이 하나의 단편적 성향을 지닌 매개과정이 아니라 주변 환경과 상황에 따라 그 가치가 달라지는 외부요인에 따른 변화이기 때문에 맥락적 측정을 통해 디자인은 진화된다는 것이다. Design have changed variously according to age and situation time and place and process that is changed like this is changed and not only utility value through relation with surrounding environment. Because design was changed because of change of these surrounding environment did theoretical construction that design is extinguished. This study examines connection possibility of design and evolution and approached new design environment in situation of darwinism reasoning existing circumstances that develop or change of design from society and culture viewpoint. Design must accepts attribute that is evolution and is substituted in evolutionary process by natural selection of conversion competition process in creation process of design to understand design process. This study wishes to substitute design in attribute of organic body that change naturally by measures value of various design and reflects the evolution process of design in view of evolution. Design is that is extinguished not design one intermediation process these origin but it is change depending on environment division situation.

Mg 판재 AZ31 합금의 고온 인장 특성과 조직관찰

김래형(Raehyeong Kim),이문용(Munyong Lee),이규현(Gyuhyun Lee),김동욱(Dongok Kim) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11

Magnesium alloy is currently expected to be widely used for high lightweight and high efficient materials in the automobile and electronics industry. Although Magnesium is excellent materials, it can’t be formed in the room temperature due to HCP structure. However in order to improve the magnesium formability, it is required by the investigation of forming at warm temperature range. This study aims to confirm characteristic of formability of AZ31 magnesium alloy sheet by the warm tensile test and microstructure analysis. The formability of AZ31 magnesium was evaluated at various temperatures, strain rate, strain rate sensitivity and thickness. Furthermore the result of microstructure of AZ31 magnesium shows how grain growth is changed by thickness.

뇌-기계 인터페이스 시스템에서의 적합한 프로토콜 선정을 위한 진동-촉각/시각 자극에 대한 다채널 뇌신호의 주파수 응답 비교

김병남(Byeongnam Kim),권규현(Gyuhyun Kwon),김래현(Laehyun Kim),이충기(Chungki Lee) 한국HCI학회 2013 한국HCI학회 학술대회 Vol.2013 No.1

수문자료 연계확대를 통한 물 관리 강화방안 연구

오창열(Oh, ChangYeol),김도정(Kim, DoJung),김민영(Kim, MinYoung),김형섭(Kim HyeongSeop),최규현(Choi, GyuHyun) 대한토목학회 2016 대한토목학회 학술대회 Vol.2016 No.10

Effects of Bias Pulsing on Etching of SiO₂ Pattern in Capacitively-Coupled Plasmas for Nano-Scale Patterning of Multi-Level Hard Masks

Kim, Sechan,Choi, Gyuhyun,Chae, Heeyeop,Lee, Nae-Eung American Scientific Publishers 2016 Journal of Nanoscience and Nanotechnology Vol.16 No.5

<P>In order to study the effects of bias pulsing on the etching characteristics of a silicon dioxide (SiO2) layer using multi-level hard mask (MLHM) structures of ArF photoresist/bottom anti-reflected coating/SiO2/amorphous carbon layer (ACL)/SiO2, the effects of bias pulsing conditions on the etch characteristics of a SiO2 layer with an ACL mask pattern in C4F8/CH2F2/O-2/Ar etch chemistries were investigated in a dual-frequency capacitively-coupled plasma (CCP) etcher. The effects of the pulse frequency, duty ratio, and pulse-bias power in the 2 MHz low-frequency (LF) power source were investigated in plasmas generated by a 27.12 MHz high-frequency (HF) power source. The etch rates of ACL and SiO2 decreased, but the etch selectivity of SiO2/ACL increased with decreasing duty ratio. When the ACL and SiO2 layers were etched with increasing pulse frequency, no significant change was observed in the etch rates and etch selectivity. With increasing LF pulse-bias power, the etch rate of ACL and SiO2 slightly increased, but the etch selectivity of SiO2/ACL decreased. Also, the precise control of the critical dimension (CD) values with decreasing duty ratio can be explained by the protection of sidewall etching of SiO2 by increased passivation. Pulse-biased etching was successfully applied to the patterning of the nano-scale line and space of SiO2 using an ACL pattern.</P>

차량 구조강성 및 보행자 머리 상해를 고려한 Hood 형상 최적화

황규현(GyuHyun Hwang),홍정화(JungHwa Hong),고은영(EunYoung Ko),임광배(GwangBae Lim),김훈희(HunHee Kim) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5

Recently pedestrian’s safety has been a major problem in the automobile industry. It became important as well as driver’s safety. Crashing with car causes the dangerous factors, especially to child because of these factors, some countries like Europe, USA and Japan has already established their own rule of safety for pedestrian and implemented it. In this study, we change the shape of hood inner panel to reduce HIC of child pedestrian. We applied EuroNCAP on our study. We determined only the middle range of hood among WAD’s 1000 to 1250 because our model is the compact car. This study’s object is reduction of HIC. So we figured out the number of optimal ribs, and applied design of experiment (DOE) to find optimal rib shapes. Then we applied hole and change of the hood side shape to reduce HIC of child head injury. In addition, only for considering the design of pedestrian"s safety might cause structural problem as for this problem we have simulated the structure of hood for all kinds of possibilities.

Rapid-prototyped PCL/fucoidan composite scaffolds for bone tissue regeneration: design, fabrication, and physical/biological properties

Jin, Gyuhyun,Kim, Geun Hyung Royal Society of Chemistry 2011 Journal of materials chemistry Vol.21 No.44

<P>Biomedical composite scaffolds consisting of poly(ε-caprolactone) (PCL) and fucoidan (Fu) fabricated by a melt-plotting system can be applied as a potential scaffold for bone tissue regeneration. In this study, the pore size and strut diameter of the layer-by-layer composite scaffolds were fixed at 305 μm and 300 ± 15 μm, respectively, and the effect of various compositions (3, 5, 10, 20 wt%) of fucoidan on the morphology, hydrophilic properties, water-absorption ability, and mechanical characterization of the scaffolds was evaluated. Through the water-contact angle and water-absorption abilities, the composite scaffolds complemented with fucoidan displayed dramatically increased hydrophilic properties and higher mechanical properties (22% increase of Young's modulus at 10 wt% of fucoidan) under limited compositions of fucoidan compared to the pure PCL scaffold. The <I>in vitro</I> biocompatibility of the scaffolds was examined using osteoblast-like-cells (MG63). Specifically, cellular proliferation and mineralization were assessed. Based on scanning electron microscope (SEM) images, the cells more easily adhered and grew on the surface of the PCL/Fu scaffolds, showing a 30% enhanced mineral deposition compared to the pure PCL scaffold after 14 days of cell culture. This result was due to the continuous release of fucoidan from the composite scaffold. These physical and biological results demonstrate that composite PCL/Fu scaffolds represent a potential biomaterial for enhancing bone tissue regeneration.</P> <P>Graphic Abstract</P><P>In this work, we fabricated biocomposites consisting of polycaprolactone and fucoidan by using a melt-plotting system and those can be applied as a potential scaffold for bone tissue regeneration. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c1jm12915e'> </P>