Results 61 to 70 of about 6,472 (224)

An Improved Array Steering Vector Estimation Method and Its Application in Speech Enhancement

EURASIP Journal on Advances in Signal Processing, 2005
We propose a robust microphone array for speech enhancement and noise suppression. To overcome target signal cancellation problem of conventional beamformes caused by array imperfections or reverberation effects, the proposed method adopts arbitrary ...
Meng Hwa Er, Zhu Liang Yu
doaj   +1 more source

Practical considerations for pathologists when selecting digital pathology systems: an ESDIP guide

The Journal of Pathology, EarlyView.
Abstract The implementation of digital pathology (DP) has been reported across academic, public, and private laboratory settings, providing valuable insights into workflow transformation. However, comparatively little guidance exists on how DP systems should be evaluated prior to acquisition and deployment.
Diana Montezuma, Vincenzo L'Imperio, David Ameisen, Rita Carvalho, Peter Boor, Sara P Oliveira, Nadieh Khalili, Inti Zlobec, Norman Zerbe, Jordi Temprana‐Salvador   +9 more
wiley   +1 more source

Chemical diversity and phylogenetic insights into Hawaiian ʻākia (Wikstroemia) species used in traditional fishing practices

PLANTS, PEOPLE, PLANET, EarlyView.
Traditional fishing with plant‐based piscicides is a global practice in decline, facing increasing restrictions. We investigated the chemical diversity of endemic Wikstroemia species historically used to stun or poison fish in Hawaiʻi. Using 1‐H‐NMR, principal component analysis, targeted HPLC, and target‐capture sequencing, we characterized compounds ...
Louise Winther, Isaac Lichter‐Marck, Louise Kjaerulff, David Lorence, Uma Nagendra, Mike Opgenorth, Sverre J. Schou, Kenneth R. Wood, Felipe Zapata, Dan Staerk, Nina Rønsted   +10 more
wiley   +1 more source

Sliding Mode Control in Aerospace Applications: A Survey

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley   +1 more source

Using Microphone Arrays to Detect Moving Vehicle Velocity

Archives of Acoustics, 2013
The noise of motor vehicles is one of the most important problems as regards to pollution on main roads. However, this unpleasant characteristic could be used to determine vehicle speed by external observers.
Ramón PERAL-ORTS, Emilio VELASCO-SANCHEZ, Nuria CAMPILLO-DAVÓ, Hector CAMPELLO-VICENTE   +3 more
doaj  

ChirpArray: A low‐cost, easy‐to‐construct microphone array for long‐term ecoacoustic monitoring

Methods in Ecology and Evolution
Advances in passive acoustic monitoring (PAM) have highlighted the importance of recording devices and audio recognition techniques in ecosystem monitoring. This study introduces ChirpArray, a cost‐effective and easily assembled microphone array for long‐
Ryotaro Okamoto, Hiroyuki Oguma
doaj   +1 more source

Laser-Based Command Injection Attacks on Voice-Controlled Microphone Arrays

Transactions on Cryptographic Hardware and Embedded Systems
Voice-controlled (VC) systems, such as mobile phones and smart speakers, enable users to operate smart devices through voice commands. Previous works (e.g., LightCommands) show that attackers can trigger VC systems to respond to various audio commands ...
Hetian Shi, Yi He, Qing Wang, Jianwei Zhuge, Qi Li, Xin Liu   +5 more
doaj   +1 more source

Widespread Bomb Fishing in Indo‐Pacific Archipelago Revealed Through Machine Learning Accelerated Passive Acoustic Monitoring

Remote Sensing in Ecology and Conservation, EarlyView.
AI‐accelerated passive acoustic monitoring reveals extensive bomb fishing within the Spermonde Archipelago, with annual incidents numbering in the thousands. ABSTRACT Bomb fishing is recognised as the most destructive fishing practice that can be performed in our oceans.
Ben Williams, Mars Coral Restoration Project Monitoring Team, Aimee du Luart, Sonny Burniston, Tries B. Razak, Timothy A. C. Lamont, David J. Smith, Jamaluddin Jompa, David Curnick, Kate E. Jones   +9 more
wiley   +1 more source

Real-Time Sound Source Localization for a Mobile Robot Based on the Guided Spectral-Temporal Position Method

International Journal of Advanced Robotic Systems, 2012
Sound source localization based on a microphone array for mobile robots faces great challenges because of factors such as uncertainty of the robot's movement, noise and reverberation, the requirements of a compact microphone array and so on.
Xiaofei Li, Miao Shen, Wenmin Wang, Hong Liu   +3 more
doaj   +1 more source

Material Extrusion‐Enabled Soft Multimodal Pressure Sensors With Fabrication‐Embedded Stretch‐Induced Strain Insensitivity

Small, EarlyView.
Material extrusion‐based additive manufacturing integrates mechanically anisotropic electrospun piezoelectric composite microfibers with stretchable silver electrodes into a three‐dimensional serpentine architecture to realize stretch‐induced strain‐insensitive pressure sensors, maintaining a stable sensing performance under tensile strains up to 30 ...
Jinsheng Fan, Shujia Xu, Yi Yang, David Harmon, Yuelin Deng, Brittany Newell, Wenzhuo Wu, Robert A. Nawrocki   +7 more
wiley   +1 more source