• Title/Summary/Keyword: History of Information Technology Development

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Telecommunications Infrastructures and Services Development and Challenges in Nepal

  • Shrestha, Surendra;Adhikari, Dilli Ram
    • International Journal of Internet, Broadcasting and Communication
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    • v.9 no.2
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    • pp.27-36
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    • 2017
  • The world's unique geographical, multilingual, multiethnic, multiracial and multi religious Himalayan country Nepal has more than 100 years history on telephony service and it has been formulating appropriate policy and regulation for the adoption of new technology, introducing the competitive market environment for the overall development of Information and Communication Technology (ICT) infrastructures and application of ICT service and tools for socio-economic transformation. The Nepalese market seems to be continuously growing and having huge demand of mobile telephony and internet subscriptions trend. The ICT infrastructure development in difficult geographical area is quite challenging and thus operators are focusing mobile telephony and mobile internet services. Nepal has been doing its best effort on formulating policy and regulation, adoption key strategies for ICT sector development and at the same time joining hands with international and regional bodies such as ITU, SAARC etc for ICT sector development. Due to geographical diversity, policy and regulatory barriers in some extent, power supply constraints and low affordability from customers on ICT tools and services, Nepal has been facing challenges on ICT infrastructure development. However, the national statistics on ICT, Networked Readiness Index and ICT Development Index show that Nepal has done quite good progress and is keeping its pace on ICT development despite the these challenges. Moreover, there seems to be quite uncovered market segments on internet service and big opportunity on ICT sector development in Nepal in the days to come.

Review of Magnetocardiography Technology based on SQUIDs (SQUID를 이용한 심자도 기술의 개발동향)

  • Lee, Y.H.;Kwon, H.;Kim, J.M.;Kim, K.;Yu, K.K.;Park, Y.K.
    • Progress in Superconductivity
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    • v.13 no.3
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    • pp.139-145
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    • 2012
  • Electric activity of cardiac muscles generates magnetic fields. Magnetocardiography (or MCG) technology, measuring these magnetic signals, can provide useful information for the diagnosis of heart diseases. It is already about 40 years ago that the first measurement of MCG signals was done by D. Cohen using SQUID (superconducting quantum interference device) sensor inside a magnetically shielded room. In the early period of MCG history, bulky point-contact RF-SQUID was used as the magnetic sensor. Thanks to the development of Nb-based Josephson junction technology in mid 1980s and new design of tightly-coupled DC-SQUID, low-noise SQUID sensors could be developed in late 1980s. In around 1990, several groups developed multi-channel MCG systems and started clinical study. However, it is quite recent years that the true usefulness of MCG was verified in clinical practice, for example, in the diagnosis of coronary artery disease. For the practical MCG system, technical elements of MCG system should be optimized in terms of performance, fabrication cost and operation cost. In this review, development history, technical issue, and future development direction of MCG technology are described.

Exploration on the Development and Characteristics of Composites Painting in the Contemporary Art Ecology

  • Wang, Jingjing
    • International Journal of Advanced Culture Technology
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    • v.10 no.4
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    • pp.337-344
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    • 2022
  • The ecological expression of art in modern society takes the harmonious developmental relationship between man and nature as an element and combines it with the various manifestations of painting as an expression of ecological artistic development. The necessary relationship for the harmonious development of nature is accurately articulated, and the ecological changes in people are expressed in integrated materials that inspire human reflection. In the pursuit of material pleasures, mankind is neglectful and indifferent to the environment. The development of composite painting in art and ecology is a process that more reveres the harmony between man and nature as well as satisfying the creative value of the work. After systematic evaluation and research, people have engaged in various structural forms of composite art painting development in the long history of art development, focusing on the integration of environmental and ecological culture.In the process of nature education going through development, the comprehensive practical development of nature education is enhanced and efforts are made to feel new ecological art ideas and new ways of valuing environmental protection. In this paper, an observational study of eco-art will be carried out, starting from the theory of hierarchical division and analyzing the contradictory relationship between man and nature. Recognize nature, understand it and feel it through eco-art painting. The analysis of the contradictory relationship between man and nature is combined with the identification of various types of information that give value to the environmental protection public, and the combination of ecological painting and nature art to achieve an upgrade of the environmental protection idea of the value of painting.

Implementation of Personalized Music Recommendation System using Time-weighting in Mobile Environment (모바일 환경에서 시간에 따른 가중치 부여를 이용한 개인화된 음악 추천 서비스)

  • Park, Won Ik;Kang, Sang Kil
    • Journal of Information Technology and Architecture
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    • v.10 no.2
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    • pp.251-261
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    • 2013
  • The appearance of various mobile Internet environment access to existing networks of mobile devices is easier to tell. In addition, mobile device users to use the wireless environment than a wired environment, user profile information is readily available features. Mobile devices have features that use alone. These characteristics of mobile devices to apply the personalization service is the best system. This paper proposes for mobile device users a personalized mobile music content recommendation service. This service propose to utilizes the user's access history information using time-weighting and collaborative filtering. Access history information can find out information of user interest. Using this information, consider the preference of music genre and time-weighted based on the recommendations makes the music. This method the problem of the traditional music recommendation system, point user's favorite music genre is changing over time do not consider that to solve the problem.

Backgrounds of Korean Noodle Industry (한국의 국수 산업 발달사)

  • Kim, Sung-Kon
    • Food Science and Industry
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    • v.50 no.1
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    • pp.36-56
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    • 2017
  • The importance of noodles in Korean diet is becoming greater in recent years. This article is an overview on a variety of Korean noodles including dried noodle, naengmyeon (buckwheat noodle), dangmyeon (starch noodle) and instant fried noodle. It gives also the background information on the changes of the definition of noodles. Since Koreans are the largest consumer of instant fried noodles per capita in the world, primary emphasis was placed on the development history of instant fried noodles.

A Development of Distributed Parallel Processing algorithm for Power Flow analysis (유기EL과 무기EL에 관한 연구)

  • Lee, Han-Sung
    • Proceedings of the KIEE Conference
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    • 2001.07e
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    • pp.67-71
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    • 2001
  • Nowdays, we can communicate using Information Technology such as internet, personal computer, mobile phone etc. To protect global environment, it is also reqired to invent products efficiently reduce energy consumption. here, I studied organic EL and inorganic EL because organic EL display is appropriate device as light, thin, energy-saying display following CRT, LCD. As a result, I realized that we are supposed to study more on invention, efficiency and mass-production of materials. Comparing with another display, however, it would be marketable in few years, considering short history of its full-scaled studies.

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Korean Alcohol Beverage from the Viewpoint of Food Culture (한국(韓國) 술의 음식문화적(飮食文化的) 고찰(考察))

  • Koh, Kyung-Hee
    • Journal of the Korean Society of Food Culture
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    • v.24 no.1
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    • pp.33-38
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    • 2009
  • Alcoholic beverages can be viewed as repositories of historical information reflecting agricultural environment, economic and scientific level, religion, literature and art of their country. Korean Alcoholic beverages are based largely on rice, which have been developed in the following order: Takju, Cheongju and distilled spirits, Soju. They are closely related with the development of agriculture and historical levels of science and technology, and thus can be seen as symbolizing economic and political changes as well as rises and declines throughout the culture's history. The present review assessed the past and present flows of Korean alcoholic beverage culture, which has had a significant influence on the mental world of Korean people, based on literature concerning the history of food in Korea. Another focus of the study was a discussion on the future transmission and refining of Korean alcoholic beverage culture, which is undeniably informed by the Korean people's unique imagination and cultural sense.

A Study on the Blockchain 2.0 Ethereum Platform Analysis for DApp Development (DApp 개발을 위한 블록체인 2.0 이더리움 플랫폼 분석 연구)

  • Kim, Soon-Gohn
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.11 no.6
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    • pp.718-723
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    • 2018
  • In a positive Internet of Medical Things (IoMT) environment, by combining the latest computer network technology with IoT technology, remote health care such as health care and monitoring is improved through the provision of quality medical information services. In this paper, we identified and compared the platforms applied with blockchain and presented the results of developing the product distribution de-centralized DApp. In the process, we developed a distribution platform that can use blockchain technology to identify product fraud, manage data, manage customers' information, prevent forgery, track transaction history, and facilitate product transactions.

The Application of Satellite Positioning Technology and its Industrialization in China

  • Lizhong, Zheng;Xiuwan, Chen
    • Proceedings of the KSRS Conference
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    • 2002.10a
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    • pp.331-336
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    • 2002
  • Satellite positioning technology has been widely used in all kinds of military and civil land, marine, space and aeronautical target positioning tasks, navigation activities and accurate surveying measurements since 90s in the last century due to it advantage in providing all-weather, real-time, three dimensional and high precision positioning information, as well as speed and accurate timing information. By now, it has already formed a new hi-tech industry basically. This paper briefly reviews the development of the global satellite positioning and navigation technologies including the basic information of China′s "Plough navigation system", introduces the history of satellite positioning technology and its major application fields as well as the status quo of this being industrialized trade in China, gives an account of the writers′ vision for the application and prospect of the satellite positioning technologies in China, and approaches the tactics and stresses of the satellite positioning technology′s application and its industrialization future in China.

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Multi-Valued Logic Device Technology; Overview, Status, and Its Future for Peta-Scale Information Density

  • Kim, Kyung Rok;Jeong, Jae Won;Choi, Young-Eun;Kim, Woo-Seok;Chang, Jiwon
    • Journal of Semiconductor Engineering
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    • v.1 no.1
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    • pp.57-63
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    • 2020
  • Complementary metal-oxide-semiconductor (CMOS) technology is now facing a power scaling limit to increase integration density. Since 1970s, multi-valued logic (MVL) has been considered as promising alternative to resolve power scaling challenge for increasing information density up to peta-scale level by reducing the system complexity. Over the past several decades, however, a power-scalable and mass-producible MVL technology has been absent so that MVL circuit and system implementation have been delayed. Recently, compact MVL device researches incorporating multiple-switching characteristics in a single device such as 2D heterojunction-based negative-differential resistance (NDR)/transconductance (NDT) devices and quantum-dot/superlattices-based constant intermediate current have been actively performed. Meanwhile, wafer-scale, energy-efficient and variation-tolerant ternary-CMOS (T-CMOS) technology has been demonstrated through commercial foundry. In this review paper, an overview for MVL development history including recent studies will be presented. Then, the status and its future research direction of MVL technology will be discussed focusing on the T-CMOS technology for peta-scale information processing in semiconductor chip.