Results 51 to 60 of about 77,439 (303)

Engineered Mycelial Scaffolds With Tunable Ultraviolet Protection, Wettability, Thermal Stability, and Spatial Mechanics

Advanced Engineering Materials, EarlyView.
Fungal mycelia grown into biodegradable scaffolds and infused with titania nanoparticles show enhanced ultraviolet shielding, thermal protection, and surface nonwettability. Properties were tuned by drying methods, revealing structure–function relationships.
Juwon S. Afolayan, Xin Zhang, Carole C. Perry   +2 more
wiley   +1 more source

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

ICT 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

IEEE 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, Jinhao Guo, Jun Ouyang, Sheng Sun, Kamran Arshad, Muhammad Ali Imran, Qammer H. Abbasi   +6 more
doaj   +1 more source

Smart antenna beamforming network [PDF]

, 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, Peter, Gardner   +1 more
core  

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

Advanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song, Stefan Rettinger, Chengzhang Xu, Ulrich Mansfeld, Markus Retsch   +4 more
wiley   +1 more source

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

Jurnal 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, Sholeh Hadi Pramono, Onny Setyawati   +2 more
doaj   +1 more source

Reconfigurable wearable antenna for 5G applications using nematic liquid crystals

Nano 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, Mengyao Yuan, Alexandra Dobrea, Chong Li, Hadi Heidari, Nigel Mottram, Rami Ghannam   +6 more
doaj   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

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

Teknologi 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, Sholeh Hadi Pramono, Onny Setyawati   +2 more
doaj   +1 more source

Adaptive beamforming of steerable array monopole antenna for WLAN application [PDF]

, 2018
The modern communication systems are using smart portable devices that operate on WLAN frequency of 2.45 GHz. One of the serious limitations of handled devices is difficult to achieve a direct connection between the transmitter and receiver. Therefore, a
Amer Asem, Abdullah
core