Hasil untuk "Information technology"

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S2 Open Access 2019
6G Wireless Networks: Vision, Requirements, Architecture, and Key Technologies

Zhengquan Zhang, Yue Xiao, Zheng Ma et al.

A key enabler for the intelligent information society of 2030, 6G networks are expected to provide performance superior to 5G and satisfy emerging services and applications. In this article, we present our vision of what 6G will be and describe usage scenarios and requirements for multi-terabyte per second (Tb/s) and intelligent 6G networks. We present a large-dimensional and autonomous network architecture that integrates space, air, ground, and underwater networks to provide ubiquitous and unlimited wireless connectivity. We also discuss artificial intelligence (AI) and machine learning [1], [2] for autonomous networks and innovative air-interface design. Finally, we identify several promising technologies for the 6G ecosystem, including terahertz (THz) communications, very-large-scale antenna arrays [i.e., supermassive (SM) multiple-input, multiple-output (MIMO)], large intelligent surfaces (LISs) and holographic beamforming (HBF), orbital angular momentum (OAM) multiplexing, laser and visible-light communications (VLC), blockchain-based spectrum sharing, quantum communications and computing, molecular communications, and the Internet of Nano-Things.

1898 sitasi en Computer Science
S2 Open Access 2019
Digital Economics

Avi Goldfarb, Catherine Tucker

Digital technology is the representation of information in bits. This technology has reduced the cost of storage, computation, and transmission of data. Research on digital economics examines whether and how digital technology changes economic activity. In this review, we emphasize the reduction in five distinct economic costs associated with digital economic activity: search costs, replication costs, transportation costs, tracking costs, and verification costs. (JEL D24, D83, L86, O33, R41)

1881 sitasi en
S2 Open Access 2009
Photonic quantum technologies

J. O'Brien, A. Furusawa, J. Vuvckovi'c

The first quantum technology that harnesses quantum mechanical effects for its core operation has arrived in the form of commercially available quantum key distribution systems. This technology achieves enhanced security by encoding information in photons such that an eavesdropper in the system can be detected. Anticipated future quantum technologies include large-scale secure networks, enhanced measurement and lithography, and quantum information processors, which promise exponentially greater computational power for particular tasks. Photonics is destined to have a central role in such technologies owing to the high-speed transmission and outstanding low-noise properties of photons. These technologies may use single photons, quantum states of bright laser beams or both, and will undoubtedly apply and drive state-of-the-art developments in photonics.

2198 sitasi en Physics
S2 Open Access 2012
Building information modelling (BIM): now and beyond

Salman Azhar, M. Khalfan, T. Maqsood

Building Information Modeling (BIM), also called n-D Modeling or Virtual Prototyping Technology, is a revolutionary development that is quickly reshaping the Architecture-Engineering-Construction (AEC) industry. BIM is both a technology and a process. The technology component of BIM helps project stakeholders to visualize what is to be built in a simulated environment to identify any potential design, construction or operational issues. The process component enables close collaboration and encourages integration of the roles of all stakeholders on a project. The paper presents an overview of BIM with focus on its core concepts, applications in the project life cycle and benefits for project stakeholders with the help of case studies. The paper also elaborates risks and barriers to BIM implementation and future trends.

490 sitasi en Engineering
DOAJ Open Access 2025
Multidimensional Change Management Strategies of School Superintendents in Strengthening Standards Process in Post-Covid-19 Era: A Phenomenological Study in Ponorogo

Fata Asyrofi Yahya, Wahid Hariyanto

This study aims to explore the efforts of school superintendents in managing the changes caused by the Covid-19 pandemic, which has led to a decline in the quality of process standards in schools, and to measure the results. Examining the issue of declining the quality of process standard by using change management strategy has not been conducted in earlier studies. This research used a qualitative approach with a phenomenological type. This research took place at elementary school in Ponorogo. The informants in this research consisted of school superintendents who are members of Ponorogo Branch of the Indonesian School Supervisors Association (APSI) as well as principals of elementary schools in Ponorogo. The results of this research revealed that: first, school supervisors have managed the changes that occur in their target schools through ADKAR steps combined with technology, namely: awareness, desire, knowledge, ability and reinforcement which are supported by using information technology. Second, the success of change management in improving the quality of process standards could be divided into three points, namely improvement, stagnation and decline.

Education, Education (General)

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