Results 31 to 40 of about 93,360 (165)

Analysis and Utilization of Reverse Mode Loudspeakers

IEEE Access, 2020
Loudspeakers are designed to radiate sound. However, they can also capture sounds and this microphone-like behavior is called the reverse mode. The paper investigates this backward mechanism by publishing theoretical and practical results.
Gyorgy Kalmar
doaj   +1 more source

Hydraulic System Onboard Monitoring and Fault Diagnostic in Agricultural Machine [PDF]

Brazilian Archives of Biology and Technology, 2019
Agricultural Machinery as an off-road vehicle is the backbone of the World agricultural industry. Its main function is to operate as a prime mover and support the power requirements to function the various type of draft implements.
Saurabh Gupta, Mahdi Khosravy, Neeraj Gupta, Hemant Darbari, Nilesh Patel   +4 more
doaj   +1 more source

Acoustical measurements in rooms with variable acoustics. [PDF]

The Journal of the Acoustical Society of America, 1991
A dedicated, computer-based system was developed to perform a complete set of acoustical measurements of recent interest in full-sized rooms and in scale models of rooms. The measurements included reverberation time, early reverberation time, loudness, early-to-late temporal energy ratios, lateral energy fractions, interaural cross correlation, and ...
Shirley Jin, Richard P. Cervone, Wei-hwa Chiang, Gary W. Siebein, Harold W. Doddington, Wilhelm K. Schwab   +5 more
openaire   +1 more source

Airborne sound insulation improvement on masonry partitions using additional plasterboard layers

Engineering Structures and Technologies, 2011
For the purposes of accumulating knowledge of how to comply with requirements for new buildings of obligatory sound class C or enhanced acoustic comfort sound classes A and B (Lithuanian Building Technical regulations STR 2.01.07:2003), the article ...
Marius Mickaitis, Aleksandras Jagniatinskis, Boris Fiks   +2 more
doaj   +1 more source

Acoustic Simulations Applied to the Garden of Rufolo’s Villa in Ravello: Comparison between Different Scenarios

Applied Sciences
This manuscript treats the acoustic analysis of a garden located in Rufolo’s villa, south of Italy, which has already been studied to install some acoustic panels to improve the response across the seating area. After a campaign of acoustic measurements,
Antonella Bevilacqua, Giovanni Amadasi, Gino Iannace, Amelia Trematerra   +3 more
doaj   +1 more source

Fault Diagnosis for UAV Blades Using Artificial Neural Network

Robotics, 2019
In recent years, unmanned aerial vehicles (UAVs) have been used in several fields including, for example, archaeology, cargo transport, conservation, healthcare, filmmaking, hobbies and recreational use.
Gino Iannace, Giuseppe Ciaburro, Amelia Trematerra   +2 more
doaj   +1 more source

Comparison between Predictive and Measurement Methods of Speech Intelligibility for Educational Rooms of Different Sizes with and without HVAC Systems

Energies, 2023
Heating ventilation and air conditioning (HVAC) systems represent one of the main noise sources inside classrooms. This explain why HVAC systems require careful design, competent installation and balancing, and regular maintenance. Many factors influence
Samantha Di Loreto, Fabio Serpilli, Valter Lori, Costanzo Di Perna   +3 more
doaj   +1 more source

Acoustic Characterization and Modeling of Silicone-Bonded Cocoa Crop Waste Using a Model Based on the Gaussian Support Vector Machine

Fibers, 2022
The sustainable management of waste from agricultural crops represents an urgent challenge. One possible solution considers waste as possible secondary raw materials for specific uses.
Virginia Puyana-Romero, Gino Iannace, Lilian Gisselle Cajas-Camacho, Christiam Garzón-Pico, Giuseppe Ciaburro   +4 more
doaj   +1 more source

Acoustic Enhancement of a Modern Church

Buildings, 2019
This paper presents the study of the intervention for the acoustic correction of a modern church. The investigated church was built in the 1960s, with a brutalist style and with a squared plan.
Gino Iannace, Umberto Berardi, Filippo De Rossi, Salvatore Mazza, Amelia Trematerra, Giuseppe Ciaburro   +5 more
doaj   +1 more source

Software Sensor for Airflow Modulation and Noise Detection by Cyclostationary Tools

Sensors, 2020
The paper presents tools to model low speed airflow coming from a turbulent machine. This low speed flow have instabilities who generate noise disturbances in the environment.
Mohamad Alkoussa Dit Albacha, Laurent Rambault, Anas Sakout, Kamel Abed Meraim, Erik Etien, Thierry Doget, Sebastien Cauet   +6 more
doaj   +1 more source