Results 31 to 40 of about 127,881 (313)

Assessment Effects of Humidification of Guitars by Complexity Measures of the Sound Level During Sustain

Archives of Acoustics
Air humidity significantly affects the sound of wooden instruments. The sound quality decreases when the instrument is exposed to low humidity for an extended period. Therefore, the instrument is treated with a humidifier to improve sound quality.
Robert STĘPIEŃ, Piotr WRZECIONO
doaj   +1 more source

VHF coherent radar signals from the E region ionosphere and the relationship to electron drift velocity and ion acoustic velocity [PDF]

, 2002
The Scandinavian Twin Auroral Radar Experiment (STARE) coherent radar system measures the Doppler shifts caused by ∼1 m plasma waves in the high-latitude E region ionosphere.
Nielsen, E., del Pozo, C., del Pozo, C. F., Del-Pozo, Carlos, Williams, P., Williams, P. J. S.   +5 more
core   +1 more source

Ottoman Mosques in Albania: Building Acoustic Exploration inside Five Case Studies

Buildings, 2021
The Ottoman mosques of the 15th and 16th centuries represent an architectural typology that has been replicated in territories out of the Middle East for as long as Islam spread its influence on other countries. This paper deals with the determination of
Silvana Sukaj, Antonella Bevilacqua, Giuseppe Ciaburro, Gino Iannace, Amelia Trematerra   +4 more
doaj   +1 more source

Discover the Acoustics of Vanvitelli Architecture in the Royal Palace of Caserta

Heritage
In this paper, the acoustic characteristics of the most important rooms of the Royal Palace of Caserta are presented. The palace, built in the XVIII century as a residence for the King of Naples, consists of numerous rooms dedicated to court life.
Gino Iannace, Ilaria Lombardi, Ernesto Scarano, Amelia Trematerra   +3 more
doaj   +1 more source

Large-Scale Experiments to Improve Monopile Scour Protection Design Adapted to Climate Change—The PROTEUS Project

Energies, 2019
This study aims to improve the design of scour protection around offshore wind turbine monopiles, as well as future-proofing them against the impacts of climate change.
Carlos Emilio Arboleda Chavez, Vasiliki Stratigaki, Minghao Wu, Peter Troch, Alexander Schendel, Mario Welzel, Raúl Villanueva, Torsten Schlurmann, Leen De Vos, Dogan Kisacik, Francisco Taveira Pinto, Tiago Fazeres-Ferradosa, Paulo Rosa Santos, Leen Baelus, Viktoria Szengel, Annelies Bolle, Richard Whitehouse, David Todd   +17 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

Fracture toughness of rock-concrete interfaces and its prediction based on acoustic properties

Горные науки и технологии
The relevance of the subject is determined by the need to solve the problem of ensuring the safety and prevent failure of facilities containing an interface between rock and concrete.
Aleksandr S. Voznesenskii , Egor I. Ushakov, Yaroslav O. Kutkin   +2 more
doaj   +1 more source

Measurements of Normal Incidence Reflection Loss as a Function of Temperature at the Water-Castor Oil Interface

Sensors, 2019
Reflection loss at the water-castor oil interface as a function of temperature was measured in a direction normal to the interface using a 200-kHz acoustic signal.
Dong-Gyun Han, Him-Chan Seo, Sungho Cho, Jee Woong Choi   +3 more
doaj   +1 more source

Sound Event Detection in Underground Parking Garage Using Convolutional Neural Network

Big Data and Cognitive Computing, 2020
Parking is a crucial element in urban mobility management. The availability of parking areas makes it easier to use a service, determining its success. Proper parking management allows economic operators located nearby to increase their business revenue.
Giuseppe Ciaburro
doaj   +1 more source

A linear acoustic model for intake wave dynamics in IC engines [PDF]

, 2004
In this paper, a linear acoustic model is described that has proven useful in obtaining a better understanding of the nature of acoustic wave dynamics in the intake system of an internal combustion (IC) engine.
Harrison, M. F., Stanev, P. T.
core   +1 more source