전력계통의 고조파 실태조사를 위한 설문서 설계에 관한 연구

최규하,신중린,임한석 建國大學校 附設 産業技術硏究所 1993 논문집 Vol.18 No.-

A design of survey form is studied for the investigations of technical aspects and/or social effects caused by harmonics on the electric power system of Korea. The survey form is aimed to have the function of investigation for the current status of harmonics problems on the power system, as well as the function of giving further understanding of the problems to the field engineers and customers in related sphere. The proposed survey form will give some contribution to build up nation-wide countermeasures to the harmonics problems.

Reversed Image_Bench 3.0

Ha, Joong Gyu 한국콘텐츠학회 2015 ICCC International Digital Design Invitation Exhib Vol.2015 No.12

A Study on Technophobia and Mobile Device Design

Joong Gyu Ha,Tom Page,Gisli Thorsteinsson 한국콘텐츠학회 2011 International Journal of Contents Vol.7 No.2

The Effects of Heme Oxygenase By-Products on the Proliferation and Invasion of HUVECs, HTR-8/SVneo Cells, 3A(tPA 30-1) Cells, and HESCs Under Varying Oxygen Concentrations

Ha, Joong Gyu,Li, Lan,Lee, Dong heon,Na, Sung hun,Ha, Kwon Soo,Kim, Young-Myeong,Ko, Jung Hwa,Hwang, Jong Yun SAGE Publications 2015 REPRODUCTIVE SCIENCES Vol.22 No.12

<P><B>Objective:</B></P><P>Abnormal spiral artery remodeling during early pregnancy leads to preeclampsia. The proliferation and invasion of trophoblasts in pregnancy are important for spiral artery remodeling. This study examined whether heme oxygenase (HO) by-products (carbon monoxide biliverdin, and iron) play roles in regulating the restoration of proliferation and invasion of human umbilical vein endothelial cells (HUVECs), HTR-8/SV-neo cells originating from first-trimester trophoblasts, 3A(tPA 30-1) obtained from term trophoblasts, and human endometrial stromal cells (HESCs) inhibited by zinc protoporphyrin IX (Znpp-9).</P><P><B>Study Design:</B></P><P>We explored whether HO by-products restored the proliferation and invasion of HUVECs, HTR-8/SVneo cells, 3A(tPA 30-1) cells, and HESCs inhibited by Znpp-9 depending on the oxygen concentration.</P><P><B>Results:</B></P><P>Bilirubin promoted proliferation of HUVECs, HTR-8/SVneo cells, 3A(tPA-30-1) cells, and HESCs under both hypoxic and normoxic conditions. Biliverdin also promoted invasion of HUVECs, HTR-8/SVneo cells, 3A(tPA30-1) cells, and HESCs under both hypoxic and normoxic conditions. Carbon monoxide-releasing molecule 2 promoted the proliferation and invasion of specific cell types depending on the oxygen concentration.</P><P><B>Conclusion:</B></P><P>Our data suggest that HO by-products differentially stimulate the proliferation and invasion of cells involved in pregnancy maintenance. When HO by-products are considered to be stimulants during the invasion and proliferation of such cells, both target cells and the gestational period should be considered.</P>

A Study on Technophobia and Mobile Device Design

Ha, Joong-Gyu,Page, Tom,Thorsteinsson, Gisli The Korea Contents Association 2011 International Journal of Contents Vol.7 No.2

Technophobia is described as the 'abnormal fear or anxiety about the effects of advanced technology', affecting one third of the population, causing health problems and the inability to work efficiently. The development of the mobile phone, both in its design process and its following socioeconomic success, has a prominent effect on our society in general; this point will be explicated in this paper. The negative effects of these developments have also been assessed with questionnaire-based interviews, focus groups and media analysis in order to focus on those who are most susceptible to the effects of technophobia, to discover the possible causes and to develop a solution for overcoming the phobia. The findings of the literature review and empirical research have been debated; the results proved inconclusive. All age and sex and groups displayed levels of anxiety around technology. Therefore, designers cannot afford to abandon these individuals in the future, and attention should be directed into inclusive product design. Therefore, various solutions have been suggested for support for these sufferers, such as tuition and bespoke, 'built to specification' mobile phones.

sustainable woodworking-SAWHORSE 2019

하중규 ( Ha Joong Gyu ) 한국기초조형학회 2019 한국기초조형학회 작품집 Vol.2019 No.1

Sebastin Cox ; timber treteaux style sawhorse

하중규 ( Ha Joong Gyu ) 한국기초조형학회 2018 한국기초조형학회 작품집 Vol.2018 No.2

프로덕트 그래픽의 시각적 사용성 통합모형

하중규(Ha, Joong Gyu) 한국디자인지식학회 2014 디자인지식저널 Vol.29 No.-

최근 산업 디자인에서 관심의 촛점이 모아지고 있는 제품-사용자 인터페이스 연구가 활발히 진행되고 있으나, 제품 하드웨어에 표시되는 프로덕트 그래픽의 문제는 아직까지 선결 과제로 남아 있다. 따라서 본 연구에서는 제품과 사용자 사이에 발생하는 시각적 양립성을 사용자 중심으로 접근하였다. 본 연구는 제품과 사용자 사이에 발생히는 커뮤니케이션을 원활히 지원하는 제품 그래픽에 관하여 인간과 기기의 상호작용의 관점에서 고찰한 것이다. 사용자와 제품의 위계상에서 발생하는 관계적 특성과 그 반응에 중점하고 제품 그래픽과 관계된 사용자 형태와 가설들을 검토하기 위하여 국제표준기구와 국제전자위원회가 합동으로 제정한 제품 그래픽 표준안을 대상으로 사용자에게 수용되고 있는 반응적 특성을 분석하였다. 표준화에 의한 인터페이스의 확장과 통합화는 제품별 크기ㆍ형태ㆍ위치ㆍ용도ㆍ의미 등에 대한 규칙과 사용자의 시각경험에 대한 규칙이 통합됨을 알 수 있었는데, 이는 제품의 형식적 체제, 제품이 갖는 상징적, 내포적 표상체제의 결합에 따라 형성됨을 알 수 있었다. 이러한 과정을 통하여 사용자가 사용시에 느끼는 주관적인 식별성과 제품그래픽의 기능적 언어 속성이 사용자-제품 상호작용에 포함되야 하며 사용자 멘탈이 전제되어야 한다. Interface design is mainly focusing on Product-User Interface in Industrial Design, ignoring the general panel graphics, graphical symbols and product graphics of appliance. The study begins with discussing the compatibility of Product-User interface and reviewing various theories and issues on cognition structure, visual perception behavior theory. The paper aims to identify basic framework of product graphics in product design through the issue of Man-Machine interface. Product graphics have concluded the characteristics of components including a controls, visual displays, machine graphics, also the establishing factors have selected. In order to find out visual quality of product graphics, ISO/IEC graphical symbols was tested for considering of the users visual factor. This thesis aims at the more rational design with the consideration of product graphical symbols, it must plan user`s efficient improvement by the visual quality of the panel graphics. Based on the findings, proposes some guidelines for the quality-base product graphics in accordance with the correlations, factor in graphical symbols.

지속가능한 프로덕트 디자인(SpD)의 하이브리드적 특성

하중규(Ha, Joong Gyu) 한국디지털디자인협의회 2014 (사)한국디지털디자인협의회 conference Vol.2014 No.5

디자인 개발과정에서 웹 기반 다중 사용자를 위한 지속가능성 툴 연구

하중규(Ha Joong gyu) 한국조형디자인학회 2015 조형디자인연구 Vol.18 No.4

생태를 고려하면서 경제와 사회면에서도 만족할 수 있는 성장을 도모하자는 지속가능성(sustainability)의 문제는 디자인의 각 분야별로 관심의 대상이다. 기존의 디자인 개발(design development)이 지향하는 지속가능성 솔루션 툴(solution tool)은 제품 그 자체의 환경성에 초점을 맞추었고 방대한 자료가 산발적으로 존재하여 디자인의 핵심적인 요소로서 고려되지 못하고 상호 보완성은 간과되었다. 이러한 오류는 웹을 기반으로 지속가능성 관련 정보의 공유와 다중사용자(multi-user)의 참여로 해소될 것이라는 점을 전제로, 본 연구에서는 디자인 개발과정에서 다중사용자의 참여를 강화하는 지속가능성 툴(sustainablility tools)을 지속가능성의 기본 개념을 통해 검토해 보았다. 이어서 지속가능디자인 온라인 가이드라인을 비롯하여 통합적인 웹 기반 지속가능성 툴을 활성화 중인 유엔환경계획(UNEP)의 'D4S', 미국산업디자이너협회(IDSA)의 'OKALA', 영국 러프보러대학교가 운용 중인 'INFORMATION / INSPIRATION', 영국 골드스미스대학교가 구축한 웹 툴인 'DEMI', 영국의 그린 드링크스 네트워크(Green Drinks Network)의 'Biothinking'을 포함한 5곳에 나타난 툴의 특징과 내용을 정리하여 디자인 개발과정의 단계별 지속가능성 요소와 관련 실행 툴을 제시하였다. 지속가능성의 문제를 디자인 관점에서 접근하고 이를 적용하여 이용할 수 있는 지속가능성 툴은 혁신적인 전략이나 해결책, 실행적인 노하우 등에 대한 의사소통의 활성화를 앞당길 것이다. The issue of sustainability to realize desirable growth in the aspects of not only ecology but also economy and society is the object of interest in many different areas of design. The sustainability tools previously by the process of design development were focused on environmental factors of the product itself, and a vast amount of data was present sporadically and could not be considered as core elements of design, and complementarity was disregarded. With an assumption that this kind of negativity can be cleared out by sharing information about sustainability in a web-based way and letting multi-users participate in it, this researcher investigated sustainability tools to increase multi-users' participation in the process of design development through the concept of sustainability. Next, by arranging and evaluating the characteristics and contents of tools found in five places including D4S in UNEP, OKALA in IDSA, INFORMATION / INSPIRATION in Loughborough University of UK, DEMI in Goldsmiths College, University of London and Biothinking in Green Drinks Network which are being activated as integrated web-based sustainability tools involving sustainable design guideline, this author suggested the elements of sustainability for each step of design development. It is expected that sustainability tools with which we can approach and apply sustainability issues in a perspective of design will vitalize communication about innovative strategies and solutions or practical knowhow even faster.