作者: 是剝皮 時間: 2025-3-21 21:25 作者: 帳單 時間: 2025-3-22 03:53 作者: 柔軟 時間: 2025-3-22 06:33
The Effects of Sound Speed on the Shape of the Ocean Impulse Responsee sound speed cases. It is found that the envelopes of these responses are predictable enough to remove propagational distortion by deconvolving the data envelope with the model envelope and thus extract useful source signal characteristics.作者: 思考而得 時間: 2025-3-22 10:24
Summary of Session 1ic scintillation and tomography inverses). Appropriate partitions between deterministic processes (e.g. tides and fronts) and stochastic processes was an important theme. This theme and many others continued through the week, hence, it is not useful to summarize the discussions held only on Monday.作者: ALIEN 時間: 2025-3-22 15:04 作者: 使腐爛 時間: 2025-3-22 19:10
Two Dimensional Acoustical Propagation in a Stratified Shear Flowzontal over scales of <10m. The two-dimensional angle of arrival distribution is correlated during strongly sheared flow, a result that can be explained in terms of the passage of inclined planes of higher density fluid associated with shear flow instabilities passing through the acoustical path.作者: 吊胃口 時間: 2025-3-22 22:07
Nonlinear Effects in Wind-Wave Generation, cross-spectra of signals from gauge-pairs were computed to investigate the statistical relationship between frequency and wavenumber. The results are modeled by a method similar to that used in the analysis of turbulent flow.作者: 考博 時間: 2025-3-23 02:52 作者: ETCH 時間: 2025-3-23 06:36 作者: 錫箔紙 時間: 2025-3-23 13:17
Book 1991 Jargon Oceanographic use Acoustic use dbordB decibar (depth in m) decibel (energy level) PE primitive equations parabolic equations convergence zone converging currents converging rays (downwelling water) (high energy density) front thermohaline front wave, ray or time front speed water current speed sound propagation speed 1 The list goes on.作者: Orgasm 時間: 2025-3-23 15:33 作者: DEAWL 時間: 2025-3-23 18:40 作者: 帶子 時間: 2025-3-23 23:34
Internal Wave Induced Fluctuations in the Oceanic Density and Sound Speed Fieldstuations is estimated and compared with a corresponding spectrum of isopycnal displacement..Of particular relevance is the frequency dependence of the sound speed spectrum at the vertical wavenumber corresponding to the Fresnel scale of a given acoustic propagation experiment. Most internal wave spe作者: 鉤針織物 時間: 2025-3-24 05:47
Gyre-Scale Reciprocal Acoustic Transmissionsange and depth averages. The sum of the travel times of oppositely traveling signals depends on the sound speed field. The sum travel times decreased as the summer thermocline formed during the experiment. The travel times suggest that the thermocline deepened episodically on the northern leg of the作者: syncope 時間: 2025-3-24 07:02
Chaos in Underwater Acousticsre predominently chaotic, the growth in range of the complexity of the wavefield is shown to be exponential: the number of eigenrays connecting a fixed source and receiver grows exponentially while the average intensity of ray arrivals decays exponentially. Some preliminary attempts to investigate t作者: inundate 時間: 2025-3-24 11:29 作者: Fortuitous 時間: 2025-3-24 18:44
Observations Of Ocean Inhomogeneitiesn the sound velocity profile. Profile variation is also caused by alternate intrusions of different water masses. Temperature differences are balanced in respect to density by salinity differences. In many cases thermohaline effects are more important than internal waves.作者: Excise 時間: 2025-3-24 19:15 作者: synovitis 時間: 2025-3-24 23:44 作者: Fecal-Impaction 時間: 2025-3-25 04:45
R. W. Meredith,P. M. Jacksonde the missing link and give rise to a collaborative solution for the Intersection Collision problem, factually increasing safety and preventing deaths. This chapter gives an analysis of crash dynamics in road intersections and provides a survey of existing Intersection Collision Avoidance mechanism作者: 眉毛 時間: 2025-3-25 09:05 作者: Anterior 時間: 2025-3-25 15:19
de the missing link and give rise to a collaborative solution for the Intersection Collision problem, factually increasing safety and preventing deaths. This chapter gives an analysis of crash dynamics in road intersections and provides a survey of existing Intersection Collision Avoidance mechanism作者: 你不公正 時間: 2025-3-25 19:29
Michael G. Brown,Frederick D. Tappert,Gustavo J. Goni,Kevin B. Smithde the missing link and give rise to a collaborative solution for the Intersection Collision problem, factually increasing safety and preventing deaths. This chapter gives an analysis of crash dynamics in road intersections and provides a survey of existing Intersection Collision Avoidance mechanism作者: Archipelago 時間: 2025-3-25 22:20 作者: MORT 時間: 2025-3-26 01:06 作者: 狂亂 時間: 2025-3-26 07:24 作者: 大喘氣 時間: 2025-3-26 10:08 作者: 象形文字 時間: 2025-3-26 16:42 作者: 一夫一妻制 時間: 2025-3-26 18:10
R. W. Meredith,P. M. Jacksond to increase safety and prevent intersection collisions. Nevertheless, these costly and prone to failure devices can contribute to collisions. The evolution of sensing technology and processing capabilities allows addressing the Intersection Collision Avoidance problem; yet, this technology is limi作者: Connotation 時間: 2025-3-26 21:12 作者: hemophilia 時間: 2025-3-27 04:43
d to increase safety and prevent intersection collisions. Nevertheless, these costly and prone to failure devices can contribute to collisions. The evolution of sensing technology and processing capabilities allows addressing the Intersection Collision Avoidance problem; yet, this technology is limi作者: Proponent 時間: 2025-3-27 06:30
Michael G. Brown,Frederick D. Tappert,Gustavo J. Goni,Kevin B. Smithd to increase safety and prevent intersection collisions. Nevertheless, these costly and prone to failure devices can contribute to collisions. The evolution of sensing technology and processing capabilities allows addressing the Intersection Collision Avoidance problem; yet, this technology is limi作者: 瘋狂 時間: 2025-3-27 11:52 作者: AV-node 時間: 2025-3-27 14:28
d to increase safety and prevent intersection collisions. Nevertheless, these costly and prone to failure devices can contribute to collisions. The evolution of sensing technology and processing capabilities allows addressing the Intersection Collision Avoidance problem; yet, this technology is limi作者: 集中營 時間: 2025-3-27 19:26
Robert H. Mellend to increase safety and prevent intersection collisions. Nevertheless, these costly and prone to failure devices can contribute to collisions. The evolution of sensing technology and processing capabilities allows addressing the Intersection Collision Avoidance problem; yet, this technology is limi作者: 雜役 時間: 2025-3-27 22:14
Deterministic-Stochastic Oceanographic Descriptions for Ocean-Acoustic Experimentse inevitable variability of the ocean, and hence of the acoustic propagation through it. One of these early experiments will be described from the perspective of modern knowledge of the ocean. The principal conclusion is that ocean acoustic experiments should assume ocean variability and be designed作者: PIZZA 時間: 2025-3-28 05:44 作者: 音的強弱 時間: 2025-3-28 09:18 作者: preeclampsia 時間: 2025-3-28 10:57 作者: Atmosphere 時間: 2025-3-28 17:52
The Effect of Seasonal Temperature Fluctuations in the Water Column on Sediment Compressional Wave Sle, temperature fluctuations of as much as twelve degrees Centigrade have been observed. These seasonal variations in water column temperature affect the pore water temperature of the bottom sediments which, in turn, affects the compressional wave speed profile. Using Biot theory, it is shown that t作者: 取消 時間: 2025-3-28 19:03
Slice89: A Single Slice Tomography Experimentng to ray loop “wavelengths” and their harmonics (70 km and smaller). The quasi-sinusoidal rays can be thought of as taking a partial Fourier transform of the sound speed field (Cornuelle and Howe, 1987). The SLICE89 experiment was conducted in the northeast Pacific during summer 1989 to determine h作者: 有機體 時間: 2025-3-29 02:03 作者: Pedagogy 時間: 2025-3-29 04:49 作者: GENRE 時間: 2025-3-29 07:44 作者: Solace 時間: 2025-3-29 14:02
Summary of Session 1of internal waves and other processes, ocean acoustic experiments, and the use of acoustics to infer, or directly observe ocean processes (e.g. acoustic scintillation and tomography inverses). Appropriate partitions between deterministic processes (e.g. tides and fronts) and stochastic processes was作者: 不如樂死去 時間: 2025-3-29 15:52
Chaos in Underwater Acoustics range-independent problem the divergence between neighboring ray trajectories is slow (power law behavior). In the generic range-dependent problem some ray trajectories exhibit extreme sensitivity to initial conditions (chaotic behavior) wherein neighboring trajectories diverge exponentially. Using作者: Lipoma 時間: 2025-3-29 21:14
Impulse Response Analysis of Ocean Acoustic Propagationd for fixed times that are appropriate for propagation to ≈ 1000 km. The wavefront characteristic that allows determination of the source depth is shown to be the distance between the two distinct wavefronts that result from the upgoing and down-going rays at the source. The effect of internal waves作者: 約會 時間: 2025-3-30 03:20 作者: Permanent 時間: 2025-3-30 06:41 作者: Basal-Ganglia 時間: 2025-3-30 10:20
Acoustic Variability Due to Internal Waves and Surface Waves in Shallow Water a broadside array of hydrophones. Transmission loss varied significantly over a wide range of time scales during certain periods, and was relatively uniform during other periods. During intermittent intervals, acoustic features appeared to propagate across the array of hydrophones, at a speed of ab作者: contrast-medium 時間: 2025-3-30 15:41
Observations Of Ocean Inhomogeneitiesmust be separated into features, which have to be treated as deterministic phenomena, and random structures in a statistically homogeneous stratification..In a Baltic Sea example an ocean front appears as an oblique plane separating two adjacent homogeneous water masses with different temperature, s作者: 細(xì)胞學(xué) 時間: 2025-3-30 19:58 作者: 運動性 時間: 2025-3-30 23:13 作者: Presbyopia 時間: 2025-3-31 04:48 作者: 表主動 時間: 2025-3-31 06:36
10樓作者: 惹人反感 時間: 2025-3-31 11:19
10樓作者: 鉗子 時間: 2025-3-31 14:19
10樓
