標題: Titlebook: Acoustics for Engineers; Troy Lectures Jens Blauert,Ning Xiang Textbook 20092nd edition Springer-Verlag Berlin Heidelberg 2009 Absorption.D [打印本頁] 作者: FLAW 時間: 2025-3-21 19:11
書目名稱Acoustics for Engineers影響因子(影響力)
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書目名稱Acoustics for Engineers被引頻次學科排名
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書目名稱Acoustics for Engineers讀者反饋學科排名
作者: 新手 時間: 2025-3-21 22:39 作者: anarchist 時間: 2025-3-22 02:30 作者: 灌溉 時間: 2025-3-22 06:05
Aufgaben zu Technische Mechanik 1 - 3that many mathematical formulae are similar to those that appear when dealing with electric oscillators. There is a general isomorphism of the equations in mechanic, acoustic and electric networks that can be exploited for describing mechanic and acoustic networks via analogous electric ones. Formul作者: fibula 時間: 2025-3-22 11:36 作者: terazosin 時間: 2025-3-22 13:25 作者: MUT 時間: 2025-3-22 20:08
Aufgaben zu Technische Mechanik 1-3 forces. Even more than magnetic-field transducers, electric-field transducers exist in a wide variety of forms and shapes. There are transducers that are intrinsically linear and others that naturally have a quadratic force law and must be linearized. There are also irreversible controlled couplers作者: 挑剔小責 時間: 2025-3-22 23:59
Aufgaben zu Technische Mechanik 1-3ations with . differential equations. This chapter now focuses on waves, which are processes that vary with both time and space. Their mathematical description requires . differential equations..Motivated by the electroacoustic analogies, we start this chapter with an excursion into electromagnetic 作者: AVOW 時間: 2025-3-23 04:00 作者: Fibroid 時間: 2025-3-23 08:01 作者: Homocystinuria 時間: 2025-3-23 11:37
https://doi.org/10.1007/b137983 For continuously loaded line arrays we further substituted the source strength of the individual sources with a length-specific source-strength load, .. The source-strength load has the dimension [volume-velocity/length]..It seems natural to extend this method to area radiators like oscillating mem作者: PACT 時間: 2025-3-23 15:45
Werner Hauger,Wolfgang Wall,Ewald Wernern is.Its solution for the forward-progressing plane wave can be expressed as .The assumption of a lossless medium, however, is an idealization. There is always some loss of acoustic energy when sound propagates in real media. This is the so-called . of sound energy into thermal energy. Dissipation c作者: 座右銘 時間: 2025-3-23 20:48
Aufgaben zu Technische Mechanik 1-3nd fields inside rooms with complicated shapes like concert halls or churches. An approximate method called . is often useful in these cases..This method considers sound propagation in terms of so-called.. Sound rays were already introduced in Section 10.4, where a ray symbol was used to designate t作者: Interferons 時間: 2025-3-23 23:06
https://doi.org/10.1007/3-540-33870-5edominantly based on reflection caused by impedance discontinuities in possible transmission paths. Dissipation and absorption may also play a role in sound isolation, but it is usually minor. Another term for sound isolation is . because the sound is, so-to-say, “dammed in”..Sound isolation must no作者: Insubordinate 時間: 2025-3-24 05:34 作者: MUT 時間: 2025-3-24 09:49 作者: 性滿足 時間: 2025-3-24 12:55
http://image.papertrans.cn/a/image/144032.jpg作者: CLAM 時間: 2025-3-24 15:26 作者: 同來核對 時間: 2025-3-24 22:46 作者: 消音器 時間: 2025-3-25 00:10
Front Matter to modify output either in quantity or type. These options are also open to the capitalist, but neither is likely to be as effective for the purpose of expanding value as joining in the battle of competition. Marx stressed that this battle is fought by the cheapening of commodities through reducing作者: Graphite 時間: 2025-3-25 05:54 作者: 不規(guī)則 時間: 2025-3-25 09:59 作者: Frequency 時間: 2025-3-25 12:18
Electromechanic and Electroacoustic Transduction,ainst any already established yardstick, into an end in itself? What is this, but a situation in which man does not reproduce himself in a determined form, but produces his totality? Where man does not seek to remain something that he has become, but is in the absolute movement of becoming? In bourg作者: 粗糙濫制 時間: 2025-3-25 18:50
Horns and Stepped Ducts,ey is credit money. This is the position of Tooke and his followers, with whom Marx so clearly sides in the . According to Marx, their refutation of the quantity theory is incomplete because they jumble both money with capital and money’s different aspects with each other.. Marx corrects the first o作者: Aqueous-Humor 時間: 2025-3-25 20:08 作者: Finasteride 時間: 2025-3-26 01:54 作者: Individual 時間: 2025-3-26 06:30
Dissipation, Reflection, Refraction, and Absorption, first and best book into international cultural myth with a number of popular stage productions, translations and appropriations of .. The combined effort of her edition of PBS’s . and . with essays, letters and fragments, established the poet’s reputation.作者: duplicate 時間: 2025-3-26 10:16 作者: V洗浴 時間: 2025-3-26 16:33 作者: 無效 時間: 2025-3-26 19:27 作者: headlong 時間: 2025-3-26 22:22 作者: Gudgeon 時間: 2025-3-27 03:55
https://doi.org/10.1007/3-540-33870-5orous leaves or walls are typically inserted into airborne transmission paths to achieve isolation, and isolation of structure-borne sound is accomplished by inserting elastic elements (springs) or layers (resilient materials, air gaps). Sometimes heavy . are also used. In every case, the goal is to作者: pellagra 時間: 2025-3-27 07:17
Magnetic-Field Transducers,s of labour as not-capital/value are shown to have formidable ramifications concerning the crisis-ridden nature of capitalist social relations and the struggles operative within and against them..978-3-031-58416-9978-3-031-58414-5作者: 新義 時間: 2025-3-27 12:04 作者: Exonerate 時間: 2025-3-27 14:43
https://doi.org/10.1007/b137983red where the diameter varies with .. In other words, the area function .?=?.(.) is no longer constant. Nevertheless, the condition .???. shall still holds. Two cases – depicted in Fig.8.1 – will be discussed.作者: ERUPT 時間: 2025-3-27 21:11 作者: MAIM 時間: 2025-3-28 01:54 作者: pellagra 時間: 2025-3-28 04:10
Werner Hauger,Horst Lippmann,Ewald Werner those in the field of communication technology, to a special interest in acoustics. A further reason for the affinity of engineers and physicists to acoustics is based on the fact that many physical and mathematical foundations of acoustics are usually well known to them, such as mechanics, electrodynamics, vibration, waves, and fields.作者: 去才蔑視 時間: 2025-3-28 09:41 作者: 惹人反感 時間: 2025-3-28 13:05
Aufgaben zu Technische Mechanik 1–3 that can be derived by imagining a small . of the border area. We have.for the magnetic field, and.for the electric field, having recalled from electrodynamics that the energy, ., stored in an inductance is ., and the energy stored in a capacitance is ..作者: 退潮 時間: 2025-3-28 18:24
Werner Hauger,Wolfgang Wall,Ewald Wernernsional solution in . coordinates. A few further one-, two- and three-dimensional cases are solvable in closed form, especially when symmetries allow for simplified formulations using appropriate coordinate systems as is the case for spherical or cylindrical coordinates.作者: ingestion 時間: 2025-3-28 19:37 作者: Melanoma 時間: 2025-3-28 23:05
Aufgaben zu Technische Mechanik 1-3ere is thus a demand for more simple arithmetics to deal with these signals, particularly their amplitudes and phase angles. This can be accomplished in different ways. In this book we use the common symbolic representation of sinusoidal signals by means of so-called ..作者: STERN 時間: 2025-3-29 05:14
Textbook 20092nd editionwledge in mathematics. In the second, enlarged edition, the teaching aspects of the book have been substantially improved. Carefully selected examples illustrate the application of acoustic principles and problems are provided for training.."Acoustics for Engineers" is designed for extensive teachin作者: 精致 時間: 2025-3-29 08:40 作者: 粗魯?shù)娜?nbsp; 時間: 2025-3-29 11:47 作者: facilitate 時間: 2025-3-29 17:14 作者: DEVIL 時間: 2025-3-29 22:54
Aufgaben zu Technische Mechanik 1-3scription requires . differential equations..Motivated by the electroacoustic analogies, we start this chapter with an excursion into electromagnetic waves. This excursion will bring us back to sound waves in the next section.作者: GLOOM 時間: 2025-3-30 02:11
Aufgaben zu Technische Mechanik 1-3hod considers sound propagation in terms of so-called.. Sound rays were already introduced in Section 10.4, where a ray symbol was used to designate the wave bundle that emerges from a circular hole in a rigid wall when .???.. The idea is that the wave bundle propagates along a straight line like a ray of light.作者: 全等 時間: 2025-3-30 06:46
Front Matteranging at its individual value (the labour-time of production whether it be by the most or least efficient method). Capitalism, however, is dominated by commodity production, and the extension ofthe market ensures that prices for identical products do notdiverge. Even if supply and demand match now,作者: comely 時間: 2025-3-30 11:51 作者: 變色龍 時間: 2025-3-30 13:45 作者: extinguish 時間: 2025-3-30 18:39
