Results 111 to 120 of about 82,401 (265)

Adaptive anti-jamming scheme based on meta-surface antenna

Dianxin kexue
Aiming at the problem that traditional anti-jamming schemes cannot choose suitable anti-jamming strategies according to different types of jamming forms, an adaptive anti-jamming scheme based on meta-surface antenna was proposed.
GUO Yuze, JIN Liang, XU Xiaoming, MA Keming, PEI Chen   +4 more
doaj   +2 more sources

Implementasi dan Evaluasi Kinerja Frequency Hopping Spread Spectrum (FHSS) Menggunakan WARP

Jurnal Teknik ITS, 2015
Proses pengiriman informasi dari pengirim ke penerima terkadang terdapat gangguan, maka untuk mengatasi masalah tersebut dapat menggunakan metode Spred Spectrum, yang merupakan teknik pengiriman sinyal yang tahan terhadap gangguan berupa noise maupun ...
Rini Nurpita Sari, Suwadi Suwadi, Titiek Suryani   +2 more
doaj  

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

Advanced Materials, EarlyView.
The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley   +1 more source

Leaftronics: Bio‐Fractal Scaffolds From Leaf Venation for Low‐Waste Electronics

Advanced Materials, EarlyView.
“Leaftronics” transforms naturally evolved leaf venation into quasi‐fractal scaffolds for sustainable electronics. Polymer‐infiltrated leaf skeletons can be used to fabricate ultra‐smooth, reflow‐ and thin‐film‐compatible decomposable substrates, while making the same lignocellulose networks conducting results in flexible transparent electrodes.
Rakesh Rajendran Nair, Hrisheekesh Thachoth Chandran, Karl Leo, Hans Kleemann   +3 more
wiley   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

Hydrogel‐Based 3D‐Printable Stretchable Pressure Sensor

Advanced Materials Technologies, EarlyView.
We present a carbon‐black‐functionalized double‐network granular hydrogel (DNGH) pressure sensor capable of detecting pressures from 200 Pa, equivalent to a light finger touch, up to 500 kPa. The sensor exhibits signal drifts below 3.5% after 800 cycles and response times around 80 ms. Leveraging this broad sensing range, we 3D print this material into
Tianyu Yuan, Chenzhuo Li, Antonia Georgopoulou, John M. Kolinski, Esther Amstad   +4 more
wiley   +1 more source

Elastomers Combining Damping Efficiency With Rapid Recovery

Advanced Materials Technologies, EarlyView.
Double network granular elastomers (DNGEs) combine high energy dissipation under both cyclic loading and high impact with rapid shape recovery. 3D printing enables the production of complex, customizable structures with tailored performance. Recyclable DNGEs retain their properties over multiple recycling cycles.
Eva Baur, Alain Molleyres, Esther Amstad
wiley   +1 more source

Jam-e Jam in Persian Literature

Bulletin of the Society for Near Eastern Studies in Japan, 1974
Jam-e Jam which means Jamshid's Cup, is one of the most traditional and favourite themes among the classical Persian poets. This Cup has been expressed in various names, such as Jam-e Kai Khosrou, Jam-e Jahan-numa, Jam-e Giti-numa, Jam-e Jahan-bin, Jam-e Alam-bin, Jam-e Jahan-ara, Jam-e Iskandar and Aine-ye Soleiman. Ferdousi, the greatest Persian epic
openaire   +2 more sources

Large‐Scale and Cost‐Effective Fabrication of Ultra‐Thin, Biodegradable Microelectrode Arrays and Pressure Sensors Using Laser Micromachining

Advanced Materials Technologies, EarlyView.
A mask‐free and cost‐effective UV‐pico‐second laser‐based microfabrication method is proposed to fabricate large‐area biodegradable microelectrode arrays and pressure sensors. These devices demonstrate low impedance, good conformability, excellent biocompatibility, and rapid degradation, providing a new route for next‐generation transient electronics ...
Bhavani Prasad Yalagala, Asfand Tanwear, María Cerezo‐Sánchez, Hossein Parvizi, Morteza Amjadi, Hadi Heidari   +5 more
wiley   +1 more source

Efficient multi‐perspective jamming feature perception network for suppressive jamming recognition with limited training samples

IET Radar, Sonar & Navigation
Recognising suppressive jamming signals is crucial for radar systems to counteract this type of jamming, highlighting the importance of research in this area.
Minghua Wu, Yupei Lin, Dongyang Cheng, Xiaohai Zou, Bin Rao, Wei Wang   +5 more
doaj   +1 more source