• Title/Summary/Keyword: Design revolution

검색결과 714건 처리시간 0.03초

평판형 종($L_{-}$-굴곡($B_{8}$)모드 초음파 전동기의 제작과 특성 (Fabrication and Characteristics of Flat-type $L_{-}$-$B_{8}$ Mode Ultrasonic Motors)

  • 우상호;이은학;김진수
    • 대한전기학회논문지:전기물성ㆍ응용부문C
    • /
    • 제51권7호
    • /
    • pp.292-297
    • /
    • 2002
  • In this paper, a flat-type $L_{-}$-$B_{8}$ mode Ultrasonic Motor[USM] having the size of 80 x 20 x ${1.5}mm^3$($l{\times}\omega{\times}t$) was designed and fabricated to examine the characteristics of an ultrasonic vibration. We used ANSYS simulation program based on FEM to get the optimum design of this USM. As results of experiment, the fastest speed of revolution(v), the maximum torque(T) and the efficiency(n) were 37.5cm/s, 5.0 mN.m and 1.17% when 27.9KHz, 150N, 50V were applied respectively. And this flat-type $L_{-}$-$B_{8}$ mode USM could be controlled the speed of rotor revolution by applied voltage, frequency and pre-load of rotor as well as showed the characteristics of typical drooping torque-speed, large torque and high speed. So, we think that this flat-type $L_{-}$-$B_{8}$ mode USM has characteristics of enough torque and velocity to be usable for applications in forwarding device of an electric card or a paper, etc.

4차 산업혁명시대 무역인력양성 방향과 전략에 관한 연구 (The Direction & Strategy of Human Resources Development in Global Business Practise in the 4th Industrial Revolution)

  • 조원길
    • 무역학회지
    • /
    • 제44권4호
    • /
    • pp.67-85
    • /
    • 2019
  • This study analyzes the trade issues and curriculum issues of universities in the 4th Industrial Revolution era with the aim of finding strategies to improve the curriculum of international commerce and to cultivate trade manpower by matching them with the trade job competencies required by trade enterprises. To this end, trade college students, GTEP partners, industry-academia partners, and expert groups of N university were asked to provide information on trade curriculum for the current curriculum. The resulting data were analyzed by questionnaire frequency analysis and FGI method to reveal that both students and graduates are interested in improving the trade curriculum of the university, and that companies are also demanding talents who are responsible for the comprehensive process of trade practice and can perform sincerely and comprehensively. Therefore, we have established a new curriculum that is suitable for the 4th industrial age, opened a certificate acquisition course suitable for the needs of the company, and developed the commercial practice, trade simulation, capstone design, and PBL teaching method. Ways are suggesting to reduce mismatch between universities and companies.

Design and Implementation of Context-aware Application on Smartphone Using Speech Recognizer

  • Kim, Kyuseok
    • 한국정보기술학회 영문논문지
    • /
    • 제10권2호
    • /
    • pp.49-59
    • /
    • 2020
  • As technologies have been developing, our lives are getting easier. Today we are surrounded by the new technologies such as AI and IoT. Moreover, the word, "smart" is a very broad one because we are trying to change our daily environment into smart one by using those technologies. For example, the traditional workplaces have changed into smart offices. Since the 3rd industrial revolution, we have used the touch interface to operate the machines. In the 4th industrial revolution, however, we are trying adding the speech recognition module to the machines to operate them by giving voice commands. Today many of the things are communicated with human by voice commands. Many of them are called AI things and they do tasks which users request and do tasks more than what users request. In the 4th industrial revolution, we use smartphones all the time every day from the morning to the night. For this reason, the privacy using phone is not guaranteed sometimes. For example, the caller's voice can be heard through the phone speaker when accepting a call. So, it is needed to protect privacy on smartphone and it should work automatically according to the user context. In this aspect, this paper proposes a method to adjust the voice volume for call to protect privacy on smartphone according to the user context.

CMMI와 TMMi를 이용한 소프트웨어 Safety 성숙도 모델에 대한 연구 (The Study on the Software Safety Maturity Model using CMMI and TMMi)

  • 이승목;김영곤;안경수
    • 한국소프트웨어감정평가학회 논문지
    • /
    • 제16권2호
    • /
    • pp.87-98
    • /
    • 2020
  • 최근 IoT, 인공지능, 클라우드, 빅데이터, 모바일 분야가 융합되어 4차 산업혁명이라는 새로운 산업시대가 도래하였고 전 사업군으로 확대 되었다. 이 중심에는 소프트웨어가 중요한 역할을 담당하고 있지만 다양한 사업군으로 적용, 보편화됨에 따라 소프트웨어 안전에 대한 이슈가 부각되고 있다. 하지만 현재 소프트웨어 Safety는 개발 관점에서만 활동이 집중적으로 맞춰져 있고, 조직적인 개선 활동과 평가 체계 수준에 대해서는 다소 미진하다. 본 연구에서는 이러한 미진사항을 보완하고자 소프트웨어 Safety 성숙도 모델을 정의하고, 각 성숙도 레벨의 Process Area를 명시하였다. 본 연구에서 고안된 Safety 성숙도 모델을 기반으로 조직관점의 Safety 확립과 함께 체계적인 소프트웨어 Safety 개선 활동에 기여할 것으로 기대한다.

Management and Development Potential of the Wig Industry in the Beauty Tech Era

  • Eun-Jung SHIN;Ki Han KWON
    • 산경연구논집
    • /
    • 제14권7호
    • /
    • pp.27-38
    • /
    • 2023
  • Purpose: The new technological innovation caused by the Fourth Industrial Revolution will bring about a major change in the scalp healthcare market and the wig industry. This review paper is an empirical analysis focusing on the development potential of the Korean beauty tech market and the wig industry. Research design, data and methodology: This review of the wig industry and consumer experience is an important literature review. The PRISMA flow chart was used. Beauty Tech; Beauty Industry; Wig Industry; Wig; Scalp Healthcare; was used as Keywords as records verified through database screening. A total of 513 references were finally selected through major journal search sites such as PubMed, Google Scholar, RISS, Scopus, and Research Gate. Among the selected references, a total of 52 papers were selected in the final stage from 2001 to 2022. Results: For the sustainable development of wig industry management, consumers' desire for new and convenient products should be secured through technologies related to the 4th industrial revolution, and creative thinking was presented throughout manufacturing, distribution, and customer service. Conclusions: Hair loss reduces the quality of life due to mental stress and affects social life. The continuous development of wig companies, such as information on wigs and quality improvement, should be supported.

1920년대 소비에트 구성주의 패션에 관한 연구 (A Study on Soviet Constructive Fashion in 1920s)

  • 조윤경;금기숙
    • 복식
    • /
    • 제36권
    • /
    • pp.183-203
    • /
    • 1998
  • The wave of Avant-garde swept away all in the unique social background so called 'October Revolution' and the early 1900 Russian society which was able to absorb and accept anything. The Russian avant-garde has been affected by the Cubism and the Futurism those had peculiarly appeared in the early twentieth century, spreaded out to three spheres: the Suprematism, the Rayonism and the Constructivism. The Russian Constructivism has appeared in this background, concretely and ideally ex-pressed the ideology of the revolution into the artistic form and made an huge influence to the whole Russian society. The Constructivist like Tatlin, naum Gabo, Pevaner, Rodchenko, Stepanova, Popova and Exter gave great effect on the Soviet Constructive fashion design in 1920's after the Revolution. The Soviet costume in 1920s hold in common the characteristicss of the Constructive graphic as it is, geometrical and abstractive form, energetic and motility. In fashion design, these graphic qualities have been showed as the application of geometrical form and architectural image, physical distortion and transformation. And in textile design, the simple, dynamical presentation has been appeared. We can classify the Soviet costume at this time into three occasions. The first term is from late 1910 th mid 1920, and it is altered from folk costume design to modern one. With Lamanova as the first on the list, using the folk mitif, the Constructive expression of simple form has been gradually revealed in design. Designers like Makarova, Pribylskaia and Mukhina produced the plane, simple chemise style with the decoration of the Russian traditional motif. From early to late 1920 is the second term, and it is at the pick of the most active processing of the Constructive design. Not only at the costume in daily life but also at the theatrical costume and textile, the con-structive design has been represented all avail-able fields. Many Constructivists including Stepanova, Popova, Exter and Rodchenko took part in the textile design and costume design so as to evlvo their aesthetic concept. The third term is from late 1920 to early 1930. The socialistic realism has dominated over the whole culture and art, the revolutionary dynamic motif has been presented also in textile design. The formative features of Soviet Constructive fashion design are; silhouette, from, motif, color and fabric. The first, the silhouette : a straight rectangular silhouetted has been expressed through the whole period and a volumed one with distorted human body shape has introduced in the theatrical costume design. The second, the form: many lengthened rectangular forms have been made at beginnings, but to the middle period, geometrical, architectural forms have been more showed and there are energy and movement in design. At the last period, only a partial feature-division has been seen. The third, the motif; no pattern or ethnic motif has been partly used at beginnings, a figure like circle, tri-angle has gradually appeared in textile design. At latter period, a real-existent motif like an airplane has been represented with graphing and simplicity. The fourth, the color ; because of insufficient dyeing, neutral color like black or grey color has been mainly covered, but after middle term, a primary color or pastel tone has been seen, contrast of the fabric; without much development of textile industry after the Revolution, thick and durable fabrics have been the main stream, but as time had going to the last period, fabrics such as linen, cotton, velvet and silk have been varously choesn. At the theatrical costume, new materials like plastics and metals that were able to accentuate the form. The pursuit of popularity, simplicity and functionalism that the basic concept of Constructive fashion is one of the "beauty" which has been searching in modern fashion. And now we can appreciate how innovative and epochal this Soviet Constructive fashion movement was.ement was.

  • PDF

사물인터넷환경에서 프로젝트중심학습에 Triz를 이용한 학습 모델 설계 (Design of Learning Model using Triz for PBL(Project-based Learning) in IoT Environment)

  • 이근호
    • 사물인터넷융복합논문지
    • /
    • 제5권2호
    • /
    • pp.81-87
    • /
    • 2019
  • 인터넷을 통한 정보화시대로 접어든지 얼마되지 않아서 급격하게 4차 산업혁명으로 변화가 일어나면서 모든 사물을 이용한 사물인터넷의 시대로 급격하게 변화가 되고 있다. 교육에서도 사물인터넷으로의 변화에 따라 4차산업혁명에 맞는 교육에 대한 관심이 높아지고 있다. 인터넷을 활용한 과제중심학습(NetPBL) 방법에서 Triz를 활용한 과제중심학습(T-PBL)으로 변화가 필요하다. 이에 본 논문에서는 Triz를 활용한 과제중심학습(T-PBL) 방법에 초점을 두고 그 활용의 필요와 중요성을 살펴보고자 한다. T-PBL을 위한 도구로 Triz를 활용한 수업 모델을 제안한다. Triz는 창의적 방법으로 문제를 해결하기 위한 도구로 이용이 되고 있다. 사물인터넷과 관련된 블록체인 시스템 보안 수업에 Triz를 적용한 모델을 설계하도록 한다.

4.19 혁명과 5.16 군사정변기의 이데올로기와 복식 (Dress and Ideology during the period of 4.19 Revolution and the 5.16 Coup in the early 1960s Korea)

  • 이민정
    • 한국의류산업학회지
    • /
    • 제16권5호
    • /
    • pp.706-718
    • /
    • 2014
  • Ideology which symbolizes the belief system about the order of human society represents itself in a concrete form through dress which reflects material and conceptual world. In the early 1960s Korea, where a civil revolution and a military coup took place, good examples of dress representing ideology could be found. This study investigates the dress representing ideology of the period, and examines its manifestation and aspect of transition. Literature survey and case study were conducted. The following results were obtained: First, dress representing ideology was symbolically verifying its differences and was changing with the course of time. There were the flow going down from the government, and the flow going up from the movement of the civilian. Through this process, design elements of ideological dress were combined in a dialectic way to form a new representational dress such as Jaegunbok. Second, costly and luxurious clothes meant a tool to rule over people, and the opposition was uniform meaning equality. In 1960 Korea, black waves of school uniforms appeared to lead the social change. A year later, the military government seized power in a 5.16 coup and it enforced uniform upon every people to achieve equal austerity and modernized spirit. Lastly, cotton, which was originated from Gandhi's movement in India, was symbolizing nationalism till the early 1960s in Korea meaning the funding own development with own resources.

4차 산업혁명시대에 대응한 초등학교 교실 환경개선사업의 만족도 및 필요도 (The Satisfaction and Needs of the Environmental Improvement Project of Elementary Schools in the Era of the Fourth Industrial Revolution)

  • 김영훈;남경숙
    • 디지털융복합연구
    • /
    • 제18권2호
    • /
    • pp.269-276
    • /
    • 2020
  • 본 연구에서는 서울시의 '꿈을 담은 교실' 사업을 시행한 초등학교 교실 공간을 분석하고 사용자 측면에서의 만족도와 필요도를 파악하고자한다. 초등학교를 선정하여 현장관찰조사로 공간 구성과 색채를 조사하였다. 담임교사를 대상으로 설문조사를 실시하였고, SPSS/WIN 통계프로그램 22.0으로 분석하였다. 공간요소의 만족도는 기술통계분석, 일반교실과 '꿈을 담은 교실'의 만족도 차이는 대응표본 t-test, 계획요소의 필요도(중요도), 만족도의 차이는 One way ANOVA로 검증하였다. 공간은 분리형, 원색의 교실이 가장 많았다. 저학년들을 위해서는 감성적 요소와 밝고 경쾌한 분위기를, 중,고학년들을 위해서는 융·복합 요소와 온화하고 은은한 분위기를 선호하였다. 복합형 교실형태에 지역사회와의 소통공간, 적절한 놀이 및 휴식공간을 선호하였다. 이는 4차 산업혁명시대의 초등학교 교실 공간계획 방향설정에 도움을 줄 것이다.

4차 산업혁명 시대 정보통신기술(ICT)이 가져온 네트워크 마케팅의 현재와 미래 - 한국암웨이 사례 연구 - (The 4th Industrial Revolution's Impact on Network Marketing - Focused on ABN Korea Case -)

  • 박소진;오창규
    • 한국정보시스템학회지:정보시스템연구
    • /
    • 제26권4호
    • /
    • pp.379-400
    • /
    • 2017
  • Purpose The purpose of this study is to investigate the effects of ICT on multilevel marketing organizations (MLMs) whose members are both salespeople and consumers. This study explores the effects of the latest ICT convergence on the direct selling, which is the oldest sales method, and suggests the direction for the development of network marketing. Therefore, we will propose the changes in direct sales brought by ICT and predict the future direction of network marketing in preparation for the 4th Industrial Revolution era. Design/methodology/approach Exploratory case study was the methodology selected for this paper. The case study enables the use of multiple methods for data collection and analysis. This study applies qualitative case-study methodology on Amway Korea, which is the top seller of MLM organizations, to better understand the impact of ICT. This study conducted an in-depth interview with four different levels of MLM members (e.g. membership, ruby, emerald, diamond) which are based on the qualification system of MLM organizations and observed their behaviors. Findings This study revealed that the ICT impact on network marketing organizations(MLMs) could be summarized as follows : new membership growth, easier communication with customers, increase in work efficiency, increase in organizational trust, change in educational environment, and increase in the use of social media. Based on the interview, we propose the changes of network marketing organizations in the fourth industrial revolution era and the future strategy of Amway Korea as follows: (1) retention of royal ABOs, (2) harmony with SMEs, (3) utilization of Big Data, (4) creation of IoT business model, and (5) construction of successful O2O business platform.