作者: 壕溝 時(shí)間: 2025-3-21 22:18
uire accurate computations of sound propagation in theatmosphere. This book describes models that can be used for thesecomputations. The models take into account complex effects of theatmosphere and the ground surface on sound waves, including theeffects of wind and temperature distributions, atmosp作者: 辯論 時(shí)間: 2025-3-22 02:57 作者: Commonplace 時(shí)間: 2025-3-22 06:44
Noise barriers, propagation over a vertical screen. In Appendix 0 we describe the computational methods in more detail. Experimental results for sound propagation over barriers can be found in Refs. [114], [71], [38], [117], [12].作者: ADAGE 時(shí)間: 2025-3-22 10:57
Unbounded homogeneous atmosphere,he average pressure, . the variation of the pressure, is called the . or the .. A sound wave travels with a finite speed of about 340 m/s. This is experienced most clearly for sound pulses: it takes some time before a sound pulse generated by a source reaches a distant receiver.作者: vitreous-humor 時(shí)間: 2025-3-22 16:14 作者: vitreous-humor 時(shí)間: 2025-3-22 18:48
Introduction,. Sound waves are generated by a source and travel through the atmosphere to a receiver The source may be a whistling bird, as in Fig. 1.1. Other important example: of sources are cars, trains, and airplanes.作者: Fecundity 時(shí)間: 2025-3-22 21:13 作者: cutlery 時(shí)間: 2025-3-23 02:17
Atmospheric refraction,ing atmosphere is justified only for small propagation distances. For propagation distances of the order of 100 m or more, atmospheric refraction often has large effects on received sound pressure levels, in particular if the source and the receiver are close to the ground, at heights of a few meters or less.作者: macular-edema 時(shí)間: 2025-3-23 07:49
Atmospheric turbulence,d the (effective) sound speed we used smooth functions of height [see Eqs. (4.5), (4.12), (4.13), and (4.14); see also Appendix N]. These profiles should be considered as average profiles, averaged over a period of typically ten minutes.作者: CRAMP 時(shí)間: 2025-3-23 11:58 作者: hardheaded 時(shí)間: 2025-3-23 14:36
http://image.papertrans.cn/c/image/232124.jpg作者: 現(xiàn)實(shí) 時(shí)間: 2025-3-23 21:34
Limbs with five degrees of connectivity,. Sound waves are generated by a source and travel through the atmosphere to a receiver The source may be a whistling bird, as in Fig. 1.1. Other important example: of sources are cars, trains, and airplanes.作者: 滑稽 時(shí)間: 2025-3-24 01:18 作者: 甜食 時(shí)間: 2025-3-24 05:55 作者: 新手 時(shí)間: 2025-3-24 09:19
Structural Synthesis of Parallel Robotsd the (effective) sound speed we used smooth functions of height [see Eqs. (4.5), (4.12), (4.13), and (4.14); see also Appendix N]. These profiles should be considered as average profiles, averaged over a period of typically ten minutes.作者: Overdose 時(shí)間: 2025-3-24 14:14 作者: 心痛 時(shí)間: 2025-3-24 18:18
Limbs with five degrees of connectivity,. Sound waves are generated by a source and travel through the atmosphere to a receiver The source may be a whistling bird, as in Fig. 1.1. Other important example: of sources are cars, trains, and airplanes.作者: inculpate 時(shí)間: 2025-3-24 21:24
Structural Synthesis of Parallel Robotsct generates a sequence of compressions and rarefactions in the air surrounding it. The corresponding local fluctuations in air pressure travel away from the source, in all directions. Such a traveling pressure fluctuation is called a sound wave. The difference between the fluctuating pressure and t作者: Gesture 時(shí)間: 2025-3-25 02:55 作者: 針葉類(lèi)的樹(shù) 時(shí)間: 2025-3-25 05:47
Limbs with two degrees of connectivity,ing atmosphere is justified only for small propagation distances. For propagation distances of the order of 100 m or more, atmospheric refraction often has large effects on received sound pressure levels, in particular if the source and the receiver are close to the ground, at heights of a few meter作者: Postulate 時(shí)間: 2025-3-25 08:46
Structural Synthesis of Parallel Robotsd the (effective) sound speed we used smooth functions of height [see Eqs. (4.5), (4.12), (4.13), and (4.14); see also Appendix N]. These profiles should be considered as average profiles, averaged over a period of typically ten minutes.作者: limber 時(shí)間: 2025-3-25 14:06 作者: HACK 時(shí)間: 2025-3-25 18:43
Solid Mechanics and Its Applicationseduction of traffic noise. The simplest noise barrier is a vertical screen, . a thin wall. In this chapter we describe computational methods for sound propagation over a vertical screen. In Appendix 0 we describe the computational methods in more detail. Experimental results for sound propagation ov作者: 小故事 時(shí)間: 2025-3-25 22:56
https://doi.org/10.1007/978-94-010-0660-6Meteorology; Phase; acoustics; boundary layer; computational method; distribution; noise; sound; temperature作者: 音樂(lè)會(huì) 時(shí)間: 2025-3-26 02:58 作者: 拒絕 時(shí)間: 2025-3-26 08:06 作者: 善于騙人 時(shí)間: 2025-3-26 10:25
are based on theeffective sound speed approach. Both two-dimensional models andthree-dimensional models are presented. As meteorological effects playan important role in atmospheric acoustics, selected topics fromboundary layer meteorology and the theory of turbulence are alsopresented.978-1-4020-0390-5978-94-010-0660-6作者: 宮殿般 時(shí)間: 2025-3-26 16:32
Introduction,. Sound waves are generated by a source and travel through the atmosphere to a receiver The source may be a whistling bird, as in Fig. 1.1. Other important example: of sources are cars, trains, and airplanes.作者: Intruder 時(shí)間: 2025-3-26 20:14 作者: acolyte 時(shí)間: 2025-3-26 23:07 作者: 易達(dá)到 時(shí)間: 2025-3-27 05:04 作者: 宏偉 時(shí)間: 2025-3-27 08:04
Atmospheric turbulence,d the (effective) sound speed we used smooth functions of height [see Eqs. (4.5), (4.12), (4.13), and (4.14); see also Appendix N]. These profiles should be considered as average profiles, averaged over a period of typically ten minutes.作者: 極力證明 時(shí)間: 2025-3-27 11:23 作者: 外表讀作 時(shí)間: 2025-3-27 16:19 作者: Herbivorous 時(shí)間: 2025-3-27 17:55
Denis Sinkevich,Anton Anikin,Vladislav Smirnovork and rehabilitative aspects are covered. We hope you enjoy them, and that you find something of interest at the same time. You may find Geriatric Medicine‘s regular ‘Brainscan‘ quiz will help you to keep up to the mark hereafter. Acknowledgement I wish to thank Mr. I.W. Braby, M.P.S., who introduced me to 978-1-4471-1421-5作者: 埋伏 時(shí)間: 2025-3-27 22:29 作者: Conduit 時(shí)間: 2025-3-28 03:50 作者: connoisseur 時(shí)間: 2025-3-28 07:30
,Models for Chloride Ingress—An Overview,on fitting measured data to an equation and deriving some parameters that are then used for predictions. Physical models use flux equations and descriptions of equilibrium conditions between the species in the pore solution and the matrix. Almost all models can be grouped into these two categories. 作者: conflate 時(shí)間: 2025-3-28 14:04 作者: 預(yù)示 時(shí)間: 2025-3-28 16:36
éric D. TaillardThis book is open access, which means that you have free and unlimited access.Offers step-by-step procedures for the design of heuristic algorithms.Contains numerous short illustrative codes for the t
