Book•
Industrial Noise Control and Acoustics
14 Nov 2002-
TL;DR: In this paper, the authors proposed a preferred prefix in SI Appendix A Preferred Prefixes in SI for SI Appendix B Properties of Gases, Liquids, and Solids Appendix C Plate Properties of Solids.
Abstract: Introduction Basics of Acoustics Acoustic Measurements Transmission of Sound Noise Sources Acoustic Criteria Room Acoustics Silencer Design Vibration Isolation for Noise Control Case Studies in Noise Control Appendix A Preferred Prefixes in SI Appendix B Properties of Gases, Liquids, and Solids Appendix C Plate Properties of Solids Appendix D Surface Absorption Coefficients Appendix E Nomenclature Index
Citations
More filters
TL;DR: In this article, the synthesis of silica-fume-based foams, with a multi-range macroporosity, was obtained by alkaline activation, exploiting the gaseous production of hydrogen caused by the oxidation, in alkaline medium, of metal silicon impurities contained in silica fume.
103 citations
TL;DR: A 28-day laboratory pot experiment was carried out applying bioaugmentation using laboratory selected bacterial strains as inoculum, biostimulation with molasses and cabbage leaf extract, and phytoremediation using rye and blue fenugreek to study the effect of these treatments on TNT removal and changes in soil microbial community responsible for contaminant degradation as discussed by the authors.
Abstract: Trinitrotoluene (TNT), a commonly used explosive for military and industrial applications, can cause serious environmental pollution. 28-day laboratory pot experiment was carried out applying bioaugmentation using laboratory selected bacterial strains as inoculum, biostimulation with molasses and cabbage leaf extract, and phytoremediation using rye and blue fenugreek to study the effect of these treatments on TNT removal and changes in soil microbial community responsible for contaminant degradation. Chemical analyses revealed significant decreases in TNT concentrations, including reduction of some of the TNT to its amino derivates during the 28-day tests. The combination of bioaugmentation-biostimulation approach coupled with rye cultivation had the most profound effect on TNT degradation. Although plants enhanced the total microbial community abundance, blue fenugreek cultivation did not significantly affect the TNT degradation rate. The results from molecular analyses suggested the survival and...
71 citations
Cites background from "Industrial Noise Control and Acoust..."
...Although the effects of noise on workers’ hearing and work efficiency have been intensively studied (Barron 2002), environmental noise pollution is also an important part of the overall environment (Yang, Kang 2005)....
[...]
Patent•
[...]
02 Mar 1978
TL;DR: In this article, a hollow body is traversed by several passages 2, juxtaposed and separated, oriented in the direction of noise propagation, and length decreasing as one moves away from a vertical area.
Abstract: A noise reduction. A hollow body 1 is traversed by several passages 2, juxtaposed and separated, oriented in the direction of noise propagation, and length decreasing as one moves away from a vertical area. Noise can pass freely beyond the body 1 and intersects the noise that has passed through the passages 2 and is out of phase, resulting in an attenuation zone in rear of the device. Application protection against trains and road noise.
64 citations
TL;DR: In this article, control of acoustical related phenomenon in environments, such as work place and residential homes, using various textile materials has gained paramount importance. Nonwoven fabrics in general are...
Abstract: Control of acoustical related phenomenon in environments, such as work place and residential homes, using various textile materials has gained paramount importance. Nonwoven fabrics in general are ...
59 citations
Cites background from "Industrial Noise Control and Acoust..."
...It has been established that nonwovens have the potential to be considered as prospective candidate in sound absorption fields [6-9]....
[...]
11 Jul 2012
TL;DR: In this paper, a structured interview was conducted with an expert panel group in Malaysia to identify the frequency and severity of environmental impacts caused by construction processes in residential buildings, and the results of this study are useful for construction managers and other participants in construction sites to become aware of construction processes impacts on the environment.
Abstract: Since construction is considered as one of the main sources of environmental pollution in the world, the level of knowledge and awareness of project participants, especially project managers, with regards to environmental impacts of construction processes needs to be enhanced. This paper aims to assess the most common environmental impacts due to the construction process in Malaysia. To achieve this aim, a structured interview was conducted with an expert panel group in Malaysia. Experts were invited to identify the frequency and severity of environmental impacts caused by construction processes in residential buildings. It was found that ‘Transportation Resource’, ‘Noise Pollution’, and ‘Dust Generation with Construction Machinery’ are the greatest environmental impacts in Malaysia respectively. The results of this study are useful for construction managers and other participants in construction sites to become aware of construction processes impacts on the environment.
57 citations
Additional excerpts
...The noise control at receiver could be performed using protective tools such as ear plug or canal cap (Barron, 2003)....
[...]
...wall) between noise source and receiver (Barron, 2003)....
[...]
References
More filters
Book•
01 Jan 1988
TL;DR: In this article, the authors describe real engine flow and combustion processes, as well as engine operating characteristics and their operation, including engine design and operating parameters, engine characteristics, and operating characteristics.
Abstract: 1 Engine Types and Their Operations 2 Engine Design and Operating Parameters 3 Thermochemistry of Fuel-Air Mixtures 4 Properties of Working Fluids 5 Ideal Models of Engine Cycles 6 Gas Exchange Processes 7 SI Engine Fuel Metering and Manifold Phenomena 8 Charge Motion within the Cylinder 9 Combustion in Ignition Engines 10 Combustion in Compression Ignition Engines 11 Pollutant Formation and Control 12 Engine Heat Transfer 13 Engine Friction and Lubrication 14 Modeling Real Engine Flow and Combustion Processes 15 Engine Operating Characteristics Appendixes
14,372 citations
Book•
01 Jan 1959
TL;DR: In this article, the authors describe the bending of long RECTANGULAR PLATES to a cycloidal surface, and the resulting deformation of shels without bending the plates.
Abstract: CONTENTS: BENDING OF LONG RECTANGULAR PLATES TO A CYLINDRICAL SURFACE PURE BENDING OF PLATES SYMMETRICAL BENDING OF CIRCULAR PLATES SMALL DEFLECTIONS OF LATERALLY LOADED PLATES SIMPLY SUPPORTED RECTANGULAR PLATES RECTANGULAR PLATES WITH VARIOUS EDGE CONDITIONS CONTINUOUS RECTANGULAR PLATES PLATES ON ELASTIC FOUNDATION PLATES OF VARIOUS SHAPES SPECIAL AND APPROXIMATE METHODS IN THEORY OF PLATES BENDING OF ANISTROPIC PLATES BENDING OF PLATES UNDER THE COMBINED ACTION OF LATERAL LOADS AND FORCES IN THE MIDDLE PLANE OF THE PLATE LARGE DEFLECTIONS OF PLATES DEFORMATION OF SHELLS WITHOUT BENDING GENERAL THEORY OF CYLINDRICAL SHELLS SHELLS HAVING THE FORM OF A SURFACE OF REVOLUTION AND LOADED SYMMETRICALLY WITH RESPECT TO THEIR AXIS.
10,200 citations
Book•
01 Jan 1950
TL;DR: In this article, the authors present a two-dimensional wave equation and simple solutions for the wave equation with respect to the two dimensions of the wave and the two types of vibrations.
Abstract: Fundamentals of Vibration. Transverse Motion: The Vibrating String. Vibrations of Bars. The Two--Dimensional Wave Equation: Vibrations of Membranes and Plates. The Acoustic Wave Equation and Simple Solutions. Reflection and Transmission. Radiation and Reception of Acoustic Waves. Absorption and Attenuation of Sound. Cavities and Waveguides. Pipes, Resonators, and Filters. Noise, Signal Detection, Hearing, and Speech. Architectural Acoustics. Environmental Acoustics. Transduction. Underwater Acoustics. Selected Nonlinear Acoustic Effects. Shock Waves and Explosions. Appendices. Answers to Odd--Numbered Problems. Index.
4,047 citations
3,799 citations
01 Jan 1982
TL;DR: Wu et al. as discussed by the authors published more than 1000 papers from TRR journals beginning with volume 2141 and more than 700 papers from the TRR journal volumes 2090 starting with volume 2090.
Abstract: 2010 Content Included are approximately 900 papers from TRR Journals beginning with volume 2141. This is a one-time fee. 2009 Content Included are more than 700 papers from TRR Journals beginning with volume 2090. This is a one-time fee. 2004 through 2008 Content Included are more than 3900 papers from TRR journal volumes 1862 through 2089. This is a one-time fee. TRB Affiliate Information For information on becoming a TRB Affiliate, contact Kelvin Jordan at 202-334-3216, e-mail: TRBAffiliates@nas.edu. TRR Print Only and Print and Online Pricing For pricing of print and print and online access, contact Jessica Wu at 202-334-3072, e-mail: TRBSales@nas.edu, or follow this link.
3,288 citations