acoustic vibration and inertia detectors

... 23.21 Hand-held velocity pickup used for locating points of minimum and maximum motion Fig 23.22 A specialized vibration meter If you knew the velocity and the frequency of sinusoidal vibration, ... 4.98 0.498 Note, from Eqs (23.2a) and (23.2b), that fN depends on 6, and thus on both M and K (or W and K) As long as both load and stiffness change proportionately, fN does not change The peak-to-peak ... high stresses, large forces, and large motions result All remarks about free vibration, fN, and damping apply to continuous systems We can "pluck" the beam of Fig 23.6 and cause it to respond in...

Ngày tải lên: 25/10/2013, 13:15

... introductions to nonlinear vibration can be found in Virgin (2000), in Worden and Tomlinson (2001), and in the standards by Nayfeh and Mook (1978) and Nayfeh and Balachandra (1995) REFERENCES Benaroya, ... the standards by Thomson and Dahleh (1993), Rao (2004), and Meirovitch (1986) A complete summary of most vibration- related topics can be found in Braun, Ewins, and Rao (2002) and in Harris and ... introductory review of vibrations and to expand the discipline of vibration analysis and design by intertwining elementary vibration topics with the disciplines of design, control, stability, and testing...

Ngày tải lên: 08/04/2014, 11:49

... reconstructed with TLD detectors and compared with the Markus ionization chamber and a silicon diode response Fig – Spread Out Bragg Peak (SOBP) reconstructed with TLD detectors and compared with ... Physics entitled “Radiation and Particle Detectors was held in Varenna, which involved the use of detectors for the research in fundamental physics, astro-particle physics, and applied physics At ... interactions and forces among the elementary particles, the deep structure of space and time, especially regarding the intersection of quantum mechanics and cosmology, where current theories and knowledge...

Ngày tải lên: 03/05/2014, 19:06

Ngày tải lên: 13/05/2014, 09:18

... integrated acoustic echo and noise suppression algorithm using the combined power of acoustic echo and background noise within a soft decision framework The combined power of the acoustic echo and noise ... background noise and the echoes by acoustic coupling between a loudspeaker and a microphone of this equipment [1, 2] Thus, for hands-free mobile equipment, the serial combination of the acoustic echo ... method can suppress the acoustic echo and the noise signal with a single gain based on soft decision For this, the noise and echo spectral are separately and efficiently estimated and combined by a single...

Ngày tải lên: 20/06/2014, 20:20

... integrated acoustic echo and noise suppression algorithm using the combined power of acoustic echo and background noise within a soft decision framework The combined power of the acoustic echo and noise ... background noise and the echoes by acoustic coupling between a loudspeaker and a microphone of this equipment [1, 2] Thus, for hands-free mobile equipment, the serial combination of the acoustic echo ... method can suppress the acoustic echo and the noise signal with a single gain based on soft decision For this, the noise and echo spectral are separately and efficiently estimated and combined by a single...

Ngày tải lên: 21/06/2014, 17:20

... integrated acoustic echo and noise suppression algorithm using the combined power of acoustic echo and background noise within a soft decision framework The combined power of the acoustic echo and noise ... background noise and the echoes by acoustic coupling between a loudspeaker and a microphone of this equipment [1, 2] Thus, for hands-free mobile equipment, the serial combination of the acoustic echo ... method can suppress the acoustic echo and the noise signal with a single gain based on soft decision For this, the noise and echo spectral are separately and efficiently estimated and combined by a single...

Ngày tải lên: 21/06/2014, 19:20

... density of a material Z and R are the acoustic impedance of a material and reflectance, respectively In the present study, Z2 is the acoustic impedance of articular cartilage and Z1 is that of saline ... dehydrated in graded ethanol, and embedded in paraffin wax Sagittal sections (6 µm thick) were then cut, stained with safranin-O/fast green and haematoxylin and eosin, and examined microscopically ... Postoperative weeks and At weeks (Fig 3c) and weeks postoperatively (Fig 3d), the site around and over the plug was filled with newly formed reparative tissue The margin around the plug and the shaved...

Ngày tải lên: 09/08/2014, 01:24

... Mitra and Bharati Sengupta, and my mother Mina Roy Chowdhury for being so awesome, caring and supporting My special thanks also go to three of my very close childhood friends Sandip Saha, Sandip ... 101 Figure 4.16: Effect of θ and twist direction on cr and Mcr Filled symbols denote cr and Mcr values under clockwise torsion and open symbols denote cr and Mcr values under anticlockwise ... to calculate the vibration frequencies and mode shapes of SWCNTs from MD simulation trajectories Comparing the vibration frequencies of various chiral SWCNTs, we find that the vibration frequencies...

Ngày tải lên: 09/09/2015, 11:19

... υa , and ξ are the volume, the crystal density, the acoustic wave velocity, and the deformation potential constant, respectively ε0 is the electronic constant; χ0 and χ∞ are the static and high ... relations for confined acoustic and confined − − optical phonons as ωac (m, → q ⊥ ) = ωa + iτa and νoc (m, → q ⊥ ) = ω0 + iτ0 with conditions |ωa | |τa | and |ω0 | |τ0 |, and consider the case ... dispersions of the resonant confined acoustic phonon and confined optical phonon modes and the threshold amplitude of the field for acoustic phonon parametric amplification and optical phonon parametric...

Ngày tải lên: 30/10/2015, 19:51

... the white etching bands which run along the underside of each 'tooth' in the chip Such white etching bands are also characteristic of localised adiabatic shear deformation and hence their presence ... the nature of the shear localisation on continuous and sawtooth chips is the relationship between the shear front spacings, D and d in Figure 2, and the undeformed chip thickness, h, On the free ... tool steel of 45 HRC with cutting speed, v, = 1.67 m/s and feed, f = 100 pn As the work material hardness and/ or the values of cutting speed and undeformed chip thickness are increased, such that...

Ngày tải lên: 18/02/2016, 08:55

... Niemann, G and Baethge, J., 'Transmission error, tooth stiffness, and noise of parallel axis gears.' VDI-Z, Vol 2, 1970, No and No Palmer, D and Munro, R.G., 'Measurements of transmission error, vibration ... 2.8 Harris map of interaction of elastic deflections and long tip relief This explanation of the handover process was developed by Harris [3] and the diagrams of the effects of varying load are ... short, or intermediate relief In 1970, Neimann in Germany [4] and Munro in the U.K introduced and developed the ideas of "long" and "short" relief designs for the two extreme load cases where...

Ngày tải lên: 13/12/2013, 03:15

... Revised and Expanded, Earl Logan, Jr 86 Vibrations of Shells and Plates: Second Edition, Revised and Expanded, Werner Soedel 87 Steam Plant Calculations Manual: Second Edition, Revised and Expanded, ... Selection and Application, Duane Tandeske 73 Zinc Handbook: Properties, Processing, and Use in Design, Frank Porter 74 Thermal Fatigue of Metals, Andrzej Weronski and Tadeusz Hejwowski 75 Classical and ... Understanding Gear Noise, J Derek Smith Chains for Power Transmission and Material Handling: Design and Applications Handbook, American Chain Association Corrosion and Corrosion Protection Handbook,...

Ngày tải lên: 13/12/2013, 03:15

... individual systems and application scenarios Acknowledgments We thank Nuance Communications Inc for the use of their speech recognition and synthesis software and Alexander Koller and Dan Shapiro ... (IS) and the update procedures for processing user input and generating system responses Here, we briefly introduce parts of the IS which are needed to understand the system’s basic workings, and ... the GUI The DMT and AT are the core components of Information States The SL and MB are subsidiary data-structures needed for interpreting and generating anaphoric expressions and definite NPs...

Ngày tải lên: 08/03/2014, 04:22

...  MH + MD µ µ   which creates the acoustic (ω − ) and optic (ω + ) branches for vibration between H and D atoms At q = we obtain acoustic frequency ω− = and optic frequency ω+ = max which is ... dopants Ni and Al are localized at q = Here we consider the phase shift for the acoustic branch ( ω < ωmax ), and the mass difference between Al and Cu is larger than the one between Ni and Cu, ... separating acoustic (ω − ) and optic (ω + ) branches (a) and amplitude changes of atomic vibration of Cu atoms in optic branch (b) for Cu doped by Ni or by Al a) b) Fig Calculated phase shift (a) and...

Ngày tải lên: 14/03/2014, 13:20

... function, and λ = mΩ The parametric transformation coefficient of acoustic and optical phonon in doped superlattices In order to establish the parametric transformation coefficient of acoustic and ... here V, ρ , ν s , and ξ are the volume, the density, the acoustic velocity and the deformation potential constant, respectively χ is the electronic constant, χ ∞ , χ are the static and high-frequency ... m and e are the effective mass and the charge of the electron, respectively and en are the energy levels of an individual well In order to establish a set of quantum kinetic equations for acoustic...

Ngày tải lên: 22/03/2014, 11:20

... have differences and therefore we combine these acoustical and language classifiers as shown in Fig1 The overall performance of the proposed approach, combining the acoustic and language information, ... by combining GMM based acoustic, and text based N-gram LM and LSA language information In this paper, we employed LSA in combination with N-gram language models and GMM acoustic models to improve ... language and Acoustic statistics of this database are described in Sec 2.1, and 2.2 weights of the hybrid classifiers using a greedy strategy to form the overall decision 2.1 GMM based acoustic...

Ngày tải lên: 23/03/2014, 17:20

... Measurement of Noise and Vibration in Buildings Measurement of Noise and Vibration Outdoors REFERENCES BASICS OF ACOUSTICS SOUND ... Approximate Sensitivity and Response of People to Feelable Vibration Vibration Criteria for Damage Risk to Buildings Vibration Criteria for Sensitive Equipment in Buildings Vibration Acceleration ... Values for Sound Attenuators General Types and Applications of Vibration Isolators Vibration Isolation Mounting for Centrifugal and Axial-Flow Fans Vibration Isolation Mounting for Reciprocating...

Ngày tải lên: 28/03/2014, 18:20

... of Acoustics Rosenbaum,Joel, Bulk Acoustic Wave Theory and Devices Rossi, Mario, Acoustics and Electroacoustics Bulk Acoustic Wave Theory and Devices by Joel F Rosenbaum Artech House Boston London ... Bulk Acoustic Waves: Theory and Devices hereinafter referred to as the "Work"; and Whereas, the Assignor retains the right to print, publish and sell the Work solely on an on-demand" basis and ... eJ%, and BH are unit vectors in the directions of E and H, respectively, and the Poynting vector is (because E and H are orthogonal) P=-EoHo (1.26) Furthermore the E and H fields are in phase and...

Ngày tải lên: 31/03/2014, 16:20

... MATLAB “ode45” command and “function” files Chapters 13 and 14 discuss the basics of static and dynamic analysis using finite elements, the generation of global stiffness and mass matrices from ... book is meant to be used as a reference book in senior and early graduate-level vibration and servo courses as well as for practicing servo and mechanical engineers It should be especially useful ... actuator/suspension systems using ANSYS and MATLAB All chapters list and discuss the related MATLAB code, and all but the last three chapters list the related ANSYS code All the MATLAB and ANSYS input codes,...

Ngày tải lên: 08/04/2014, 10:29