Results 141 to 150 of about 658,126 (299)

Supersonic Jet Excitation using Flapping Injection

, 2013
Supersonic jet noise reduction is important for high speed military aircraft. Lower acoustic levels would reduce structural fatigue leading to longer lifetime of the jet aircraft. It is not solely structural aspects which are of importance, health issues
Andersson, Niklas, Cuppoletti, Daniel, Eriksson, Lars-Erik, Gutmark, Ephraim, Hafsteinsson, Haukur, Prisell, Erik   +5 more
core  

Photoactive Monolayer MoS2 for Spiking Neural Networks Enabled Machine Vision Applications

Advanced Materials Technologies, EarlyView.
Molybdenum disulfide (MoS2) optoelectronic devices are implemented as Leaky Integrate‐and‐Fire (LIF) neurons in spiking neural networks (SNNs), where light‐induced photocurrent dynamics represent potentiation (τd) and depression (τd), emulating neuronal membrane potential.
Thiha Aung, Sindhu Priya Giridhar, Irfan H. Abidi, Taimur Ahmed, Akram AI‐Hourani, Sumeet Walia   +5 more
wiley   +1 more source

Start from Video-Music Retrieval: An Inter-Intra Modal Loss for Cross Modal Retrieval [PDF]

arXiv
The burgeoning short video industry has accelerated the advancement of video-music retrieval technology, assisting content creators in selecting appropriate music for their videos. In self-supervised training for video-to-music retrieval, the video and music samples in the dataset are separated from the same video work, so they are all one-to-one ...
arxiv  

Analog FM/FM versus digital color TV transmission aboard space station [PDF]

Langley Research Center is developing an integrated fault tolerant network to support data, voice, and video communications aboard Space Station. The question of transmitting the video data via dedicated analog channels or converting it to the digital ...
Hart, M. M.
core   +1 more source

Artificially Weaved Textile‐like Surface Micromachined Graphene‐Polymer Flexible Bioelectrodes

Advanced Materials Technologies, EarlyView.
This study reports on the engineering of microscale textured surfaces of SU‐8/PMMA polymer composites much like a “weft‐warp” pattern to resemble “artificially‐weaved” textiles. These microstructured surfaces enable conformal layering of functional reduced graphene oxide (rGO), all‐in‐all offering favorable features including remarkable self ...
Seba Nur Alhasan, S. Sajjad Mirbakht, Saygun Guler, Osman Sahin, Muhammad Umar, Burcu Arman Kuzubasoglu, Murat Kaya Yapici   +6 more
wiley   +1 more source

Video Generation with Consistency Tuning [PDF]

arXiv
Currently, various studies have been exploring generation of long videos. However, the generated frames in these videos often exhibit jitter and noise. Therefore, in order to generate the videos without these noise, we propose a novel framework composed of four modules: separate tuning module, average fusion module, combined tuning module, and inter ...
arxiv  

Unraveling the Effects of Improved Cooling and Bias Force in the Actuation of a Shape‐Memory Soft Multimaterial Gripper

Advanced Materials Technologies, EarlyView.
This study examines a soft gripper with a NiTiCu6 Shape Memory Alloy (SMA) wire embedded in a graphene nanoparticle (GNP)‐functionalized PDMS matrix. Comparing GNP‐enhanced and plain elastomer prototypes, results show that GNPs improve cooling rates, accelerating release by 40%, but increase energy consumption in low‐current activations.
Fabio Lazzari, Jacopo Romanò, Francesca Villa, Luigi Brambilla, Chiara Castiglioni, Simone Pittaccio   +5 more
wiley   +1 more source

Video DataFlywheel: Resolving the Impossible Data Trinity in Video-Language Understanding [PDF]

arXiv
Recently, video-language understanding has achieved great success through large-scale pre-training. However, data scarcity remains a prevailing challenge. This study quantitatively reveals an "impossible trinity" among data quantity, diversity, and quality in pre-training datasets.
arxiv  

Noise-shaped PCM for video processing and transmission

Electronics Letters, 1991
An easily implementable method is developed to convert conventional K-bit PCM into L-bit PCM (L < K) with a rising spectral noise profile to acquire a substantial word size/bit rate reduction for digitising video signals. It does not require additional oversampling and offers sub-band coding features.
openaire   +2 more sources

Transforming Room Acoustics with Causality‐Driven Dual‐Function Passive Metamaterials

Advanced Materials Technologies, EarlyView.
This work presents an dual acoustic metamaterial for rooms that achieves excellent broadband performance for both sound absorption and sound diffusion. This is done by using causality formulations linking the absorption of the passive system to its volume, yielding an optimal surface area ratio required for excellent sound absorption and while ...
Eric Ballestero, Yang Meng, Ping Sheng, Vincent Tournat, Vicent Romero‐García, Jean‐Philippe Groby   +5 more
wiley   +1 more source