Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Walter Beamer"'
Publikováno v:
Energies, Vol 13, Iss 3, p 613 (2020)
This paper evaluates the potential for automated lighting control as a resource for frequency regulation of the electric grid system in the context of current energy policies, economic incentives, and technological trends. The growing prevalence of r
Externí odkaz:
https://doaj.org/article/387101fd909c481c9df3b5bf28699648
Publikováno v:
The Journal of the Acoustical Society of America. 117:536-544
Reticulated vitreous carbon (RVC) is a highly porous, rigid, open cell carbon foam structure with a high melting point, good chemical inertness, and low bulk thermal conductivity. For the proper design of acoustic devices such as acoustic absorbers a
Autor:
C. Walter Beamer, Ralph T. Muehleisen
Publikováno v:
Acoustics Research Letters Online. 3:112-117
The three-microphone and four-microphone methods have been shown useful for measuring the characteristic impedance and propagating wavenumber of porous materials. In this paper the effects of uncertainties in the apparatus and pressure transfer funct
Autor:
C. Walter Beamer, Ralph T. Muehleisen
Publikováno v:
Building Integration Solutions.
Publikováno v:
Architectural Engineering 2003.
The conference room is one of the most important venues for corporations, governments, and schools. The conference room is the place where, among other things, designs are presented and sold, contracts are negotiated and signed, and executives hold m
Autor:
Ralph T. Muehleisen, C. Walter Beamer
Publikováno v:
The Journal of the Acoustical Society of America. 108:2519-2520
There is a large variety of methods for measuring the acoustic properties of porous materials. Of particular interest to many acoustics researchers are the characteristic impedance and propagating wave number of the porous materials. The standing wav
Autor:
C. Walter Beamer, Ralph T. Muehleisen
Publikováno v:
Noise Control Engineering Journal. 57:244
This paper presents a derivation for and shows practical application of the steady-state diffuse acoustic radiosity method to the prediction of steady state sound levels in rooms. The paper begins with a brief review of the general radiosity literatu
Autor:
C. Walter Beamer, Timothy E. Gulsrud
Publikováno v:
The Journal of the Acoustical Society of America. 121:3029-3029
Audience seating constitutes the majority of fixed sound absorption in most music performance venues. An understanding of the sound absorption characteristics of audience seating is therefore essential for accurately predicting reverberation times an
Autor:
C. Walter Beamer, Ralph T. Muehleisen
Publikováno v:
The Journal of the Acoustical Society of America. 118:1865-1865
The prediction of sound pressure levels in rooms from transmitted sound is a difficult problem. The sound energy in the source room incident on the common wall must be accurately predicted. In the receiving room, the propagation of sound from the pla
Autor:
Ralph T. Muehleisen, C. Walter Beamer
Publikováno v:
The Journal of the Acoustical Society of America. 117:2499-2499
Partially specular (PS) radiosity is an extended form of the general radiosity method. Acoustic radiosity is a form of bulk transfer of radiant acoustic energy. This bulk transfer is accomplished through a system of energy balance equations that rela