Results 51 to 60 of about 77,272 (302)

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

open access: yesAdvanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu   +8 more
wiley   +1 more source

A renewable-energy-driven energy-harvesting-based task scheduling and energy management framework

open access: yesICT Express
Aiming to provide low-cost MEC services for mobile devices in areas without/lacking infrastructure, we propose a renewable-energy-driven energy-harvesting-based task scheduling and energy management framework.
Zhigang Xie, Xin Song
doaj   +1 more source

Compact Base Station Antenna Based on Image Theory for UWB/5G RTLS Embraced Smart Parking of Driverless Cars

open access: yesIEEE Access, 2019
The Internet of Thing (IoT) and fifth-generation mobile communication networks (5G) are leading towards a paradigm shift by proving seamless connectivity to a large number of devices.
Abubakar Sharif   +6 more
doaj   +1 more source

Smart antenna beamforming network [PDF]

open access: yes, 2008
Smart Antenna with RF beamforming capability can greatly improve the performance of the vehicle communication system by providing better link quality and high immunity to interference. Butler Matrix is a well-known beamforming network. It can be used for
Abdul Rahim, Sharul Kamal   +1 more
core  

Nitride‐Reinforced Metal Matrix Nanocomposite Powders Production by Plasma‐Assisted Thermochemical Treatment of Intermetallic Powders

open access: yesAdvanced Engineering Materials, EarlyView.
This study proposes a new methodology for producing metal matrix nanocomposites in the solid state. The process involves the plasma‐assisted thermochemical treatment of metallic alloy powders. As a proof‐of‐concept, TiN nanoparticles are synthesized directly on the surface of FeTi intermetallic powder particles, enabling the development of the ...
Deivison Daros Paim   +4 more
wiley   +1 more source

Analisis Beamforming Adaptif pada Smart Antenna Menggunakan Algoritma Robust Kalman Filter : kondisi stasioner dan nonstasioner

open access: yesJurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2013
Permasalahan kurang efektifnya pola radiasi antena sering terjadi pada sistem komunikasi personal dan bergerak. Hal ini diakibatkan gangguan dari pemakai komunikasi lain.
Andriana Kusuma Dewi   +2 more
doaj   +1 more source

Reconfigurable wearable antenna for 5G applications using nematic liquid crystals

open access: yesNano Select, 2023
The antenna is one of the key building blocks of many wearable electronic devices, and its functions include wireless communications, energy harvesting, and radiative wireless power transfer.
Yuanjie Xia   +6 more
doaj   +1 more source

Wearable, small, and robust: the circular quarter-mode textile antenna [PDF]

open access: yes, 2015
A miniaturized wearable antenna, entirely implemented in textile materials, is proposed that relies on a quarter-mode substrate integrated waveguide topology.
Agneessens, Sam   +3 more
core   +1 more source

Inflammatory Response‐Inspired Thermochromic Shield for Pneumatic Structures

open access: yesAdvanced Engineering Materials, EarlyView.
A thermochromic shield for pneumatic structures is developed, using anhydrous sodium acetate powder and thermochromic pigment‐included solution. In this shield composed of three layers, the exothermic and thermochromic reactions, followed by the mixture of both components, occur promptly with an incident of penetrating damage as a sign of initial ...
Hyun Jae Lee, Ryuma Niiyama
wiley   +1 more source

ANALISIS BEAMFORMING ADAPTIF PADA SMART ANTENNA MENGGUNAKAN ALGORITMA ROBUST KALMAN FILTER PADA KONDISI RICIAN FADING NONSTASIONER

open access: yesTeknologi dan Kejuruan, 2016
Tujuan penelitian untuk menerapkan algoritma filter Kalman robust pada kondisi rician fading non stasioner berdasarkan analisis perbandingan jumlah nulling, nilai output HPBW dan kecepatan konvergensi untuk mencapai bobot minimum.
Andriana Kusuma Dewi   +2 more
doaj   +1 more source

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