Results 21 to 30 of about 2,680 (245)

n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz

Advanced Materials, EarlyView.
Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis, Filip Aniés, Yiyang Yu, Mohammed Ghadiyali, Hendrik Faber, Zhanibek Bizak, Youssef Kabri, Pavlos Tzourmpakis, Suman Mandal, Linqu Luo, Temur Maksudov, Mohamad Insan Nugraha, Harold F. Mazo‐Mantilla, Patrice Vanelle, Julie Broggi, Khaled N. Salama, Udo Schwingenschlögl, Martin Heeney, Atif Shamim, Thomas D. Anthopoulos   +19 more
wiley   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Development of a composite index to measure environmental sustainability in the telecom sector: A comprehensive approach towards carbon emission reduction

IIMB Management Review
Telecommunication provides the infrastructure to deliver core services but contributes to extensive CO2 emissions. To address the problem, this paper introduces environmental sustainability index for the telecom sector to reduce carbon emissions.
Kamlesh Kukreti, Kunal K. Ganguly
doaj   +1 more source

Study on Sugarcane Production Efficiency Based on DEA-Malmquist Index: A Case Study of 8 Cities in Guangdong Province

Discrete Dynamics in Nature and Society, 2021
This article takes the evaluation model of data envelopment analysis (DEA) and Malmquist index change and its decomposition method, from 2014 to 2018, of sugarcane production in 8 cities in Guangdong province as the research object and the selection of ...
Xiaohui Wang, Xin Zhang
doaj   +1 more source

Rating of Regions of Kazakhstan in Terms of Readiness for B2C E-commerce: Evaluation Methodology and Recommendations

Экономика: стратегия и практика, 2023
The purpose of the work is to develop a methodology for assessing readiness for e-commerce in the B2C sector, which allows for assessing the conditions and factors for the development of e-commerce in the context of the regions of Kazakhstan.
A. B. Zhanbozova, T. A. Azatbek, M. M. Khalitova, G. B. Moldabekova   +3 more
doaj   +1 more source

Study of Free‐Space Optical Quantum Network: Review and Prospectives

Advanced Science, EarlyView.
Free from the constraints of fiber connections, free‐space quantum network enables longer and more flexible quantum network connections. This review summarizes and comparatively analyzes free‐space quantum network experiments based on ground stations, satellites, and mobile platforms.
Hua‐Ying Liu, Zhenda Xie, Shining Zhu
wiley   +1 more source

Metasurface‐Enabled Active‐Like Passive Radar

Advanced Science, EarlyView.
A programmable space‐time‐coding metasurface embeds distinct spatiotemporal tags into ambient wireless signals, allowing passive radar to operate in an active‐like manner. By enabling code‐correlated reconstruction under interference, the approach supports robust real‐time UAV tracking in complex environments and points to intelligent, low‐power ...
Mingyi Li, Jiawen Xu, Hanting Zhao, Xu Zhao, Yanjin Chen, Tie Jun Cui, Vincenzo Galdi, Lianlin Li   +7 more
wiley   +1 more source

A skills framework in the context of a digital ecosystem: an engine for social inclusion in developing countries

Revista Latinoamericana de Estudios Educativos, 2023
Colombia has experienced a remarkable economic expansion in recent times, but it is still a country with a high level of inequality. The Gini index evidenced that fact with 51.3% in 2019, which shows that Colombia has one of the highest levels of ...
Mauricio Arbeláez Rendón, Laura Lotero Vélez, Yasaldez Eder Loaiza   +2 more
doaj   +1 more source

Photonic‐Enabled Energy‐Efficient Transparent Neuromorphic Computing Devices: A Review

Advanced Science, EarlyView.
Transparent photonic neuromorphic computing devices merge optics and brain‐inspired computing to overcome von Neumann bottlenecks with ultrafast, low‐energy processing. By exploiting transparent oxides, 2D materials, phase‐change materials, and hybrid heterostructures, these platforms enable photonic synapses, memory, and logic for see‐through edge ...
Shuvaraj Ghosh, Ki‐bum Lee, Junghyeon Lee, Seunghee Cho, Malkeshkumar Patel, Hangfei Li, Yu Wen, Ye Zhou, Joondong Kim   +8 more
wiley   +1 more source

Improving the Sustainable Infrastructure Development through Innovative Approaches in Technology, Management and Financial Aspects

CSID Journal of Infrastructure Development, 2018
Infrastructure covers various sectors that represent a large share of an economy and become a critical index of economic vitality. Both components of infrastructure: physical and social infrastructures are required to provide the necessary services for ...
Bambang Susantono, Abdur Berawi
doaj   +1 more source