Academic literature on the topic 'Wave Analysis Laboratory'

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Journal articles on the topic "Wave Analysis Laboratory"

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Chakrabarti, Subrata K. "Measurement and Analysis of Laboratory Generated Steep Waves." Journal of Offshore Mechanics and Arctic Engineering 125, no. 1 (February 1, 2003): 17–24. http://dx.doi.org/10.1115/1.1556403.

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In many offshore locations, storm generated steep waves are common and the survival of offshore structures in their presence is an important design condition. The design environment in depth-limited waters often includes waves of breaking and near-breaking conditions, in which currents may be present. Experiments were carried out in a wave tank with simulated steep waves with and without steady in-line current in which the wave profiles and the corresponding kinematics were simultaneously measured. The waves included both regular and random waves and often approached the breaking wave height for the water depth. These waves were analyzed by higher-order wave theory. In particular, the regular waves were simulated by the regular and irregular stream function theory. Especially steep wave profiles within the random waves were computed using the irregular stream function theory. The theory allows inclusion of steady current in its formulation for computation of wave kinematics. The correlation of the measured wave kinematics with the higher-order stream function wave theory showed that the wave theory could predict the kinematics of these steep waves (with and without the presence of current) well. However, in breaking waves, the vertical water particle velocity was not predicted well, especially near the trough. The effect of breaking and near-breaking steep waves on a fixed vertical caisson was also studied. The forces measured on the vertical caisson from the wave tank testing were analyzed to determine the effect of these waves and currents on the forces. It was found that the measured forces (and overturning moments) on the caisson model matched fairly well by the proper choice of force coefficients from the design guideline and the nonlinear stream function theory of appropriate order.
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Funke, E. R., E. P. D. Mansard, and G. Dai. "REALIZABLE WAVE PARAMETERS IN A LABORATORY FLUME." Coastal Engineering Proceedings 1, no. 21 (January 29, 1988): 62. http://dx.doi.org/10.9753/icce.v21.62.

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In order to establish a sound basis for the methodology deployed for the generation of realistic waves under laboratory conditions, a comparison is presented between numerical and physical realizations derived from the Random Phase and the Random Complex Spectrum method for wave synthesis. The comparisons are made in terms of 12 critical wave parameters, including three wave grouping parameters. The results indicate that, for the physical realizations of the limited conditions tested, the two methods give compatible results which fall within the expected band of variability. All physical waves undergo some evolutionary change during propagation which affects predominantly the spectral characteristics. For physical waves produced by the Random Phase method, this change increases the variability of some wave parameters. A sample analysis of one case, applying second order wave and wave generation theory to a numerical simulation, suggests that certain differences between numerical and physical simulations can be explained by non-linear wave theory.
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Harry, Matthew, Hong Zhang, and Gildas Colleter. "REMOTELY SENSED DATA FOR WAVE PROFILE ANALYSIS." Coastal Engineering Proceedings 1, no. 33 (December 14, 2012): 45. http://dx.doi.org/10.9753/icce.v33.waves.45.

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Laser scanning technology (LiDAR) is a form of remote sensing from which a water surface can be measured rapidly and accurately without in-situ sensors. An experimental setup for the measurement of waves in a wave flume is detailed with an analysis of various wave parameters. The experiments function as a source of reliable laboratory controlled data while the data analysis presents the range of research fields that the data can be applied to.
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Hughes, Steven A. "Laboratory wave reflection analysis using co-located gages." Coastal Engineering 20, no. 3-4 (September 1993): 223–47. http://dx.doi.org/10.1016/0378-3839(93)90003-q.

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Leykin, I. A., M. A. Donelan, R. H. Mellen, and D. J. McLaughlin. "Asymmetry of wind waves studied in a laboratory tank." Nonlinear Processes in Geophysics 2, no. 3/4 (December 31, 1995): 280–89. http://dx.doi.org/10.5194/npg-2-280-1995.

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Abstract. Asymmetry of wind waves was studied in laboratory tank tinder varied wind and fetch conditions using both bispectral analysis of wave records and third-order statistics of the surface elevation. It is found skewness S (the normalized third-order moment of surface elevation describing the horizontal asymmetry waves) varies only slightly with the inverse wave u*/Cm (where u* is the air friction velocity and Cm is phase speed of the dominant waves). At the same time asymmetry A, which is determined from the Hilbert transform of the wave record and characterizes the skewness of the rate of change of surface elevation, increase consistently in magnitude with the ratio u*/Cm. This suggests that nonlinear distortion of the wave profile determined by the degree of wind forcing and is a sensitive indicator of wind-wave interaction processes. It is shown that the asymmetric profile of waves can described within the frameworks of the nonlinear nonspectral concept (Plate, 1972; Lake and Yuen, 197 according to which the wind-wave field can be represented as a coherent bound-wave system consisting mainly of dominant component w. and its harmonics propagating with the same speed C. , as observed by Ramamonjiaris and Coantic (1976). The phase shift between o). harmonics is found and shown to increase with the asymmetry of the waves.
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Abroug, Iskander, Nizar Abcha, Armelle Jarno, and François Marin. "Laboratory study of non-linear wave–wave interactions of extreme focused waves in the nearshore zone." Natural Hazards and Earth System Sciences 20, no. 12 (December 3, 2020): 3279–91. http://dx.doi.org/10.5194/nhess-20-3279-2020.

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Abstract. Extreme waves play a crucial role in marine inundation hazards and coastal erosion. Prediction of non-linear wave–wave interactions is crucial in assessing the propagation of shallow water extreme waves in coastal regions. In this article, we experimentally study non-linear wave–wave interactions of large-amplitude focused wave groups propagating in a two-dimensional wave flume over a mild slope (β=1:25). The influence of the frequency spectrum and the steepness on the non-linear interactions of focused waves are examined. The generated wave trains correspond to Pierson–Moskowitz and JONSWAP (γ=3.3 or γ=7) spectra. Subsequently, we experimentally approach this problem by the use of a bispectral analysis applied on short time series, via the wavelet-based bicoherence parameter, which identifies and quantifies the phase coupling resulting from non-resonant or bound triad interactions with the peak frequency. The bispectral analysis shows that the phase coupling increases gradually and approaches 1 just prior to breaking, accordingly with the spectrum broadening and the energy increase in high-frequency components. Downstream breaking, the values of phase coupling between the peak frequency and its higher harmonics decrease drastically, and the bicoherence spectrum becomes less structured.
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Chen, Jie, Chang Bo Jiang, Hu Ying Liu, and Zhi Yuan Wu. "Laboratory Investigation on Tsunami Wave Runup." Applied Mechanics and Materials 212-213 (October 2012): 336–40. http://dx.doi.org/10.4028/www.scientific.net/amm.212-213.336.

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The 2D laboratory experiments were performed to investigate tsunami wave runup on the combined sand beach. The N-wave was generated in three different water depths. The water surface elevations, maximum elevation of runup and snapshots of wave uprush and back wash were measured. The theoretical analysis of runup was presented. The results showed that uprush water wave had a decelerate process. The maximum elevation of runup R depends on incident wave height H and R is linear relationship with H plus water depth h.
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Shen, Y., R. Lindenbergh, B. Hofland, and R. Kramer. "CHANGE ANALYSIS OF LASER SCANS OF LABORATORY ROCK SLOPES SUBJECT TO WAVE ATTACK TESTING." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences IV-2/W4 (September 13, 2017): 139–47. http://dx.doi.org/10.5194/isprs-annals-iv-2-w4-139-2017.

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For better understanding how coastal structures with gentle slopes behave during high energy events, a wave attack experiment representing a storm of 3000 waves was performed in a flume facility. Two setups with different steepness of slope were compared under the same conditions. In order to quantify changes in the rock slopes after the wave attack, a terrestrial laser scanner was used to obtain 3D coordinates of the rock surface before and after each experiment. Next, through a series of processing steps, the point clouds were converted to a suitable 2D raster for change analysis. This allowed to estimate detailed and quantitative change information. The results indicate that the area around the artificial coast line, defined as the intersection between sloped surface and wave surface, is most strongly affected by wave attacks. As the distances from the sloped surface to the waves are shorter, changes for the mildly sloped surface, slope 1 (1 : 10), are distributed over a larger area compared to the changes for the more steeply sloped surface, slope 2 (1 : 5). The results of this experiment show that terrestrial laser scanning is an effective and feasible method for change analysis of rock slopes in a laboratory setting. Most striking results from a process point of view is that the transport direction of the rocks change between the two different slopes: from seaward transport for the steeper slope to landward transport for the milder slope.
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Santon, L. "GRAPHICAL RECORDING OF WAVE PROFILES IN THE LABORATORY; HARMONIC ANALYSIS." Coastal Engineering Proceedings 1, no. 5 (January 29, 2011): 15. http://dx.doi.org/10.9753/icce.v5.15.

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We have developed a laboratory wave recorder of great simplicity which plots a wave profile to a scale which can be either 1 or 3 for the amplitude and which varies between 0,5 and 1 for the horizontal distances. The apparatus, the principle of which we have already described at a time when we had not proved all its possibilities, has shown itself to be extremely sensitive for the study of fine phenomena.
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Kraskowski, Marek, Katarzyna Pastwa, Sebastian Kowalczyk, and Tomasz Marcinkowski. "Numerical and experimental analysis of the wave induced forces on the tripod support structure. Laboratory study." Biuletyn Instytutu Morskiego 32, no. 1 (December 31, 2017): 21–29. http://dx.doi.org/10.5604/12307424.1224269.

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The presented work was realized within the framework of the AQUILO project, aiming in creating the base of knowledge for prospective future investments in offshore wind energy on Baltic Sea. The presented part of the work is focused on the experimental validation of numerical method of evaluation of the wave-induced forces on the bottom-mounted support structure of the offshore wind turbine. The experimental setup and measurement equipment, including in-house developed 6-DOF (six degree of freedom) dynamometer, are described. As a result, comparison of performance of different methods of evaluation of wave loads for wide range of parameters is presented. The results of experiments and numerical analyses are fairly consistent; largest discrepancy occurred at lowest wave frequencies, i.e. largest wave lengths. This may result from increased relative error of measurements for very long waves in relatively short tank.
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Dissertations / Theses on the topic "Wave Analysis Laboratory"

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McAllister, Mark Laing. "Analysis of laboratory and field measurements of directionally spread nonlinear ocean waves." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/28762.

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Surface gravity waves exist in the oceans as multi-directional nonlinear phenomena. Understanding how these two properties interact is intrinsically important in itself. Furthermore, an understanding of this relationship may be used to gain insight into other oceanic phenomena. This thesis first describes an experimental investigation into the relationship between directionality and non-linearity (Part I). This relationship was then used as a tool to estimate the directional spreading of field data (Part II). Experiments have been conducted in which directionally spread focused wave groups were created in a wave tank. The relationship between the degree of directional spreading and the second-order bound harmonics of the wave groups was examined, in particular the formation of a `set-up'. These measurements were then compared to predictions from second-order theories, finding good agreement. The two-dimensional structure of the bound waves was explored giving new insight into the underlying physics. Experiments were then carried out for directionally spread crossing wave groups. It is believed that the crossing of two sufficiently separated wave groups may be the cause of an anomalous set-up in the second-order bound waves observed for some extreme and potentially freak waves. This set-up is reproduced experimentally. Again, the results of these test agreed very well when compared to second-order theory. The insight gained from the foregoing experiments was then utilised in the analysis of field data. A method, which requires only a single measurement to estimate the observed degree of directional spreading, was applied to a large dataset of field measurements from the North Alwyn platform in the North Sea. This method was then compared to conventional approaches, which require multiple concurrent measurements. The method that requires only a single measurement was shown to be effective, and presents a promising approach to gaining additional insight about the directional spreading of point observations.
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Nulsen, Susan, and n/a. "Combining acoustic analysis and phonotactic analysis to improve automatic speech recognition." University of Canberra. Information Sciences & Engineering, 1998. http://erl.canberra.edu.au./public/adt-AUC20060825.131042.

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This thesis addresses the problem of automatic speech recognition, specifically, how to transform an acoustic waveform into a string of words or phonemes. A preliminary chapter gives linguistic information potentially useful in automatic speech recognition. This is followed by a description of the Wave Analysis Laboratory (WAL), a rule-based system which detects features in speech and was designed as the acoustic front end of a speech recognition system. Temporal reasoning as used in WAL rules is examined. The use of WAL in recognizing one particular class of speech sounds, the nasal consonants, is described in detail. The remainder of the thesis looks at the statistical analysis of samples of spontaneous speech. An orthographic transcription of a large sample of spontaneous speech is automatically translated into phonemes. Tables of the frequencies of word initial and word final phoneme clusters are constructed to illustrate some of the phonotactic constraints of the language. Statistical data is used to assign phonemes to phonotactic classes. These classes are unlike the acoustic classes, although there is a general distinction between the vowels, the consonants and the word boundary. A way of measuring the phonetic balance of a sample of speech is described. This can be used as a means of ranking potential test samples in terms of how well they represent the language. A phoneme n-gram model is used to measure the entropy of the language. The broad acoustic encoding output from WAL is used with this language model to reconstruct a small test sample. "Branching" a simpler alternative to perplexity is introduced and found to give similar results to perplexity. Finally, the drop in branching is calculated as knowledge of various sets of acoustic classes is considered. In the work described in this thesis the main contributions made to automatic speech recognition and the study of speech are in the development of the Wave Analysis Laboratory and in the analysis of speech from a phonotactic point of view. The phoneme cluster frequencies provide new information on spoken language, as do the phonotactic classes. The measures of phonetic balance and branching provide additional tools for use in the development of speech recognition systems.
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Fader, Amelia Erin. "Integration of surface seismic waves, laboratory measurements, and downhole acoustic televiewer imaging, in geotechnical characterization: Ogden, KS." Thesis, Kansas State University, 2012. http://hdl.handle.net/2097/15118.

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Master of Science
Department of Geology
Abdelmoneam Raef
Geotechnical site characteristics are a function of the subsurface elastic moduli and the geologic structures. This study integrates borehole, surface and laboratory measurements for a geotechnical investigation that is focused on investigating shear-wave velocity (Vs) variation and its implication to geotechnical aspects of the Ogden test site in eastern Kansas. The area has a potential of seismicity due to the seismic zone associated with the Nemaha formation where earthquakes pose a moderate hazard. This study is in response to recent design standards for bridge structures require integrating comprehensive geotechnical site characterization. Furthermore, evaluation of dynamic soil properties is important for proper seismic response analysis and soil modeling programs. In this study, near surface geophysical site characterization in the form of 2D shear-wave velocity (Vs) structure that is compared with laboratory measurements of elastic moduli and earth properties at simulated in situ overburden pressure conditions and synergy with downhole Acoustic Televiewer time and amplitude logs, proved very robust “validated” workflow in site characterization for geotechnical purposes. An important component of a geotechnical site characterization is the evaluation of in-situ shear modulus, Poisson’s ratio and reliable and accurate elastic modulus ([lambda]) and shear modulus ([mu]) estimates are important in a good geotechnical site characterization. The geophysical site characterization, undertaken in this study, will complement and help in extrapolating drilling and core-based properties deduced by the geotechnical engineers interested at the test site.
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Hamm, Luc. "Modélisation numérique bidimensionnelle de la propagation de la houle dans la zone de déferlement." Université Joseph Fourier (Grenoble), 1995. http://www.theses.fr/1995GRE10147.

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Une discussion des methodes d'analyse temporelle et spectrale des fluctuations de la surface libre dans la zone de deferlement aboutit a une amelioration du reperage des vagues individuelles par des filtrages appropries du signal. Cette nouvelle methode est testee sur des mesures effectuees en bassin a houle directionnelle. Les equations hydrodynamiques moyennes integrees sur la verticale sont ensuite etablies. La separation des equations dynamiques de la houle et du courant, incluse dans ce developpement, est adoptee apres analyse critique des travaux les plus recents realisant leur couplage. Un etat de l'art de l'approche spectrale discrete appliquee a la propagation d'etats de mer en zone cotiere met en evidence les lacunes de la connaissance actuelle et justifie ainsi l'utilisation d'une approche spectrale parametrique. Deux modeles publies sont analyses et testes par comparaison avec des mesures obtenues en nature et en laboratoire. Cette critique conclut sur des recommandations pratiques d'utilisation. L'approche probabiliste plus precise bien que moins etudiee est ensuite detaillee. Les equations de fermeture necessaires sont proposees apres etablissement d'un etat de l'art complet concernant le developpement des non-linearites, les criteres de deferlement, la creation et l'evolution du rouleau de deferlement et les dissipations d'energie associees. Ce modele de houle est utilise dans le modele hydrodynamique dont la pertinence et la fiabilite sont evaluees par comparaison avec des mesures de laboratoire couvrant des conditions de houle monochromatique et aleatoire
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Klimis, Nikolaos. "Etude en laboratoire de l'attenuation des ondes longitudinales : application a la caracterisation geotechnique des roches." Paris, ENMP, 1987. http://www.theses.fr/1987ENMP0054.

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Etude en laboratoire de roche par essais non destructifs. On s'interesse aux differentes causes d'attenuation d'une onde longitudinale. Pour des roches plutoniques, la diffraction sur grains domine; pour un calcaire cristallin, l'attenuation suit l'evolution du champ microfissural; pour une roche poreuse, l'attenuation est influencee par la dimension du milieu poreux; l'attenuation augmente par ailleurs avec l'alteration; essai sur une aplite
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Ku, Meng-Chiao, and 古孟巧. "Eduction and Analyses of Streaky Structure on Thermographic Images of Laboratory Wind Waves." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/27093931697378403664.

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碩士
國立臺灣大學
工程科學及海洋工程學研究所
104
Thermal streaky structures can be observed on wind-wave surface. They are induced by the underlying coherent eddies in parallel with the wind. The temperature in these streaks is lower than that in the surrounding area when the heat flux is upward from the water to the air, and vice versa. Cold streaky structures, therefore, are observed on infrared thermographic images. In this study, an image recognition method is developed to automatically capture these streaky structure on thermographic images of laboratory wind waves. The method of empirical mode decomposition is first applied to filter out the short-length noises in the thermographic images. The local temperature minima in the spanwise direction are then identified. A streak passing a local temperature minimum is formed by connecting the neighboring downstream/upstream local temperature minima within a chosen radius. Spanwise spacings between the neighboring streaks can then be calculated and analyzed. It is found that the probability density distribution of the streak spacing is close to lognormal distribution, similar to the streaks observed next to a no-slip wall. The non-dimensional mean streak spacing based on friction length, however, increases with the friction wind speed. This is different from the flow next to a no-slip wall in which the non-dimensional mean streak spacing approximates 100 friction unit.
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Books on the topic "Wave Analysis Laboratory"

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Steffes, P. G. Laboratory measurements of microwave and millimeter-wave properties of planetary atmospheric conditions. [Washington, DC: National Aeronautics and Space Administration, 1989.

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Geoffrey, Dent, and Royal Society of Chemistry (Great Britain). Information Services., eds. Industrial analysis with vibrational spectroscopy. Cambridge, UK: Royal Society of Chemistry, Information Services, 1997.

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Zeitlin, Vladimir. Instabilities in Cylindrical Geometry: Vortices and Laboratory Flows. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198804338.003.0011.

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Vortex solutions in cyclo-geostrophic equilibrium are described and their geostrophic and ageostrophic barotropic and baroclinic instabilities are studied along the lines of Chapter 10. Special attention is paid to centrifugal instability which, as the inertial instability of jets, is due to modes trapped in the anticyclonic shear in the vortex, and has asymmetric counterparts. Saturation of this instability is shown to exhibit some specific patterns. Instabilities of intense hurricane-like vortices are analysed and shown to be sensitive to fine details of the vortex profile. Nonlinear saturation of such instabilities exhibits typical secondary meso-vortex structures, and leads to intensification of the vortex. Special attention is paid to instabilities in laboratory flows in rotating cylindrical channels. Classification of these instabilities is given, and their nature, in terms of resonances between different wave modes, is established. Rigid-lid and free-surface configuration with topography are considered and compared with experiments.
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Witkov, Carey, and Keith Zengel. Chi-Squared Data Analysis and Model Testing for Beginners. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198847144.001.0001.

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This book is the first to make chi-squared model testing, one of the data analysis methods used to discover the Higgs boson and gravitational waves, accessible to undergraduate students in introductory physics laboratory courses. By including uncertainties in the curve fitting, chi-squared data analysis improves on the centuries old ordinary least squares and linear regression methods and combines best fit parameter estimation and model testing in one method. A toolkit of essential statistical and experimental concepts is developed from the ground up with novel features to interest even those familiar with the material. The presentation of one- and two-parameter chi-squared model testing, requiring only elementary probability and algebra, is followed by case studies that apply the methods to simple introductory physics lab experiments. More challenging topics, requiring calculus, are addressed in an advanced topics chapter. This self-contained and student-friendly introduction to chi-squared analysis and model testing includes a glossary, end-of-chapter problems with complete solutions, and software scripts written in several popular programming languages, that the reader can use for chi-squared model testing. In addition to introductory physics lab students, this accessible introduction to chi-squared analysis and model testing will be of interest to all who need to learn chi-squared model testing, e.g. beginning researchers in astrophysics and particle physics, beginners in data science, and lab students in other experimental sciences.
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CHALMERS, J., and G. DENT. INDUSTRIAL ANALYSIS WITH VIBRA (RSC Analytical Spectroscopy Monographs). Royal Society of Chemistry, 1997.

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Epstein, Irving R., and John A. Pojman. An Introduction to Nonlinear Chemical Dynamics. Oxford University Press, 1998. http://dx.doi.org/10.1093/oso/9780195096705.001.0001.

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Just a few decades ago, chemical oscillations were thought to be exotic reactions of only theoretical interest. Now known to govern an array of physical and biological processes, including the regulation of the heart, these oscillations are being studied by a diverse group across the sciences. This book is the first introduction to nonlinear chemical dynamics written specifically for chemists. It covers oscillating reactions, chaos, and chemical pattern formation, and includes numerous practical suggestions on reactor design, data analysis, and computer simulations. Assuming only an undergraduate knowledge of chemistry, the book is an ideal starting point for research in the field. The book begins with a brief history of nonlinear chemical dynamics and a review of the basic mathematics and chemistry. The authors then provide an extensive overview of nonlinear dynamics, starting with the flow reactor and moving on to a detailed discussion of chemical oscillators. Throughout the authors emphasize the chemical mechanistic basis for self-organization. The overview is followed by a series of chapters on more advanced topics, including complex oscillations, biological systems, polymers, interactions between fields and waves, and Turing patterns. Underscoring the hands-on nature of the material, the book concludes with a series of classroom-tested demonstrations and experiments appropriate for an undergraduate laboratory.
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Book chapters on the topic "Wave Analysis Laboratory"

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Craig, Edwin C. "Half-Wave Power Supplies." In Laboratory Manual for Electronics via Waveform Analysis, 5–10. New York, NY: Springer New York, 1994. http://dx.doi.org/10.1007/978-1-4612-2610-9_2.

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Craig, Edwin C. "Full-Wave Power Supplies." In Laboratory Manual for Electronics via Waveform Analysis, 11–15. New York, NY: Springer New York, 1994. http://dx.doi.org/10.1007/978-1-4612-2610-9_3.

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Craig, Edwin C. "Full-Wave Bridge Power Supplies." In Laboratory Manual for Electronics via Waveform Analysis, 16–20. New York, NY: Springer New York, 1994. http://dx.doi.org/10.1007/978-1-4612-2610-9_4.

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Osborne, A. R. "The Numerical Inverse Scattering Transform: Nonlinear Fourier Analysis for Laboratory and Oceanic Wave Data." In NATO ASI Series, 27–36. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4899-1609-9_4.

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Garia, Siddharth, Arnab Kumar Pal, Archana M. Nair, and K. Ravi. "Ultrasonic P Wave Velocity Measurement of Sedimentary Rocks in Laboratory and Its Dependency on Different Parameters by Using Multivariate Regression Analysis." In Lecture Notes in Civil Engineering, 337–49. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-9976-7_30.

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Garia, Siddharth, Arnab Kumar Pal, Archana M. Nair, and K. Ravi. "Correction to: Ultrasonic P Wave Velocity Measurement of Sedimentary Rocks in Laboratory and Its Dependency on Different Parameters by Using Multivariate Regression Analysis." In Lecture Notes in Civil Engineering, C1. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-9976-7_34.

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Craig, Edwin C. "Standing Waves On Twin-Lead Transmission Lines." In Laboratory Manual for Electronics via Waveform Analysis, 126–30. New York, NY: Springer New York, 1994. http://dx.doi.org/10.1007/978-1-4612-2610-9_24.

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P�cseli, Hans. "Simplified linear wave analysis." In Low Frequency Waves and Turbulence in Magnetized Laboratory Plasmas and in the Ionosphere. IOP Publishing, 2016. http://dx.doi.org/10.1088/978-0-7503-1251-6ch5.

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Binder, Thomas. "Technical equipment for echocardiography." In ESC CardioMed, edited by Frank Flachskampf, 422–25. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198784906.003.0084.

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Advances in ultrasound technology are shaping the way we apply echocardiography today. The industry has now developed a vast array of scanners that are targeted to different clinical requirements, budgets, and applications. In general, they can be categorized into high-end, mid-range, portable, and handheld scanners. Aside from image quality, much emphasis is placed on ergonomics, the user interface, and the patient data archiving system, which are all important to optimize workflow. Phased array transducers are used in echocardiography. Much of the signal processing (i.e. beam forming) occurs within the transducer. Further developments in computer processing and transducer technology have also led to the development of three-dimensional (3D) matrix array probes. Other transducer types necessary for a fully functional echocardiography laboratory include the pencil probe (for continuous wave spectral Doppler recordings) and the transoesophageal probe, which now also permits live 3D transoesophageal echocardiography scanning. Many of the functionalities of modern scanners are ‘software based’, where packages for specific applications such as stress echocardiography, speckle tracking, or advanced 3D image analysis can be integrated into the systems.
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P�cseli, Hans. "Elements of statistical analysis." In Low Frequency Waves and Turbulence in Magnetized Laboratory Plasmas and in the Ionosphere. IOP Publishing, 2016. http://dx.doi.org/10.1088/978-0-7503-1251-6ch18.

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Conference papers on the topic "Wave Analysis Laboratory"

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Balaji, R., S. A. Sannasiraj, and V. Sundar. "Laboratory Simulation and Analysis of Wave Groups." In 25th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/omae2006-92144.

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The coastal and offshore structures are some times exposed to group of waves with successive higher wave elevations exceeding the significant wave height, which is considered to be vulnerable for the stability of the structures. Hence, the knowledge on the existence and frequency of occurrence of ocean wave groups at a particular region of interest is important for the design of the ocean structures. In the present study, the wave groups were simulated theoretically and the same was generated in the laboratory wave flume. The measured wave elevations were analysed through statistical, spectral and wavelet approaches to detect the existence of the groupiness.
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Elshoff, Irv, Tim Janssen, and Ap van Dongeren. "Video Observation of Laboratory Waves." In Fourth International Symposium on Ocean Wave Measurement and Analysis. Reston, VA: American Society of Civil Engineers, 2002. http://dx.doi.org/10.1061/40604(273)2.

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3

Sannasiraj, S. A., and Chan Eng Soon. "Laboratory Study of Breaking Wave Induced Noises." In Fourth International Symposium on Ocean Wave Measurement and Analysis. Reston, VA: American Society of Civil Engineers, 2002. http://dx.doi.org/10.1061/40604(273)102.

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4

Choi, Hae-jin, Daniel T. Cox, M. H. Kim, and Sangsoo Ryu. "Laboratory Investigation of Nonlinear Irregular Wave Kinematics." In Fourth International Symposium on Ocean Wave Measurement and Analysis. Reston, VA: American Society of Civil Engineers, 2002. http://dx.doi.org/10.1061/40604(273)170.

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Ming, Koh Yih, S. A. Sannasiraj, and Chan Eng Soon. "Laboratory Study of Short-Crested Breaking Waves." In Fourth International Symposium on Ocean Wave Measurement and Analysis. Reston, VA: American Society of Civil Engineers, 2002. http://dx.doi.org/10.1061/40604(273)125.

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Chakrabarti, Subrata K. "Experiments and Analysis of Laboratory Generated Steep Waves." In ASME 2002 21st International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2002. http://dx.doi.org/10.1115/omae2002-28590.

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In many offshore locations, storm generated steep waves are common and the survival of offshore structures in their presence is an important design condition. The design environment in depth-limited waters often includes waves of breaking and near-breaking conditions, in which currents may be present. Experiments were carried out in a wave tank with simulated steep waves with and without steady in-line current in which the wave profiles and the corresponding kinematics were simultaneously measured. The waves included both regular and random waves and often approached the breaking wave height for the water depth. These waves were analyzed by higher-order wave theory. In particular, the regular waves were simulated by the regular and irregular stream function theory. Especially steep wave profiles within the random waves were computed using the irregular stream function theory. The theory allows inclusion of steady current in its formulation for computation of wave kinematics. The correlation of the measured wave kinematics with the higher-order stream function wave theory showed that the wave theory could predict the kinematics of these steep waves (with and without the presence of current) well. However, in breaking waves, the vertical water particle velocity was not predicted well, specially near the trough. The effect of breaking and near-breaking steep waves on a fixed vertical caisson was also studied. The forces measured on the vertical caisson from the wave tank testing were analyzed to determine the effect of these waves and currents on the forces. It was found that the measured forces (and overturning moments) on the caisson model matched fairly well by the proper choice of force coefficients from the design guideline and the nonlinear stream function theory of appropriate order.
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7

van Gent, Marcel R. A., Arno C. de Kruif, and Jimmy Murphy. "Field Measurements and Laboratory Investigations on Wave Propagation and Wave Run-Up." In Fourth International Symposium on Ocean Wave Measurement and Analysis. Reston, VA: American Society of Civil Engineers, 2002. http://dx.doi.org/10.1061/40604(273)75.

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Wright, Steven J., Donald D. Carpenter, and Amy L. Cunningham. "Laboratory Model Studies of Wave Energy Dissipation in Harbors." In Fourth International Symposium on Ocean Wave Measurement and Analysis. Reston, VA: American Society of Civil Engineers, 2002. http://dx.doi.org/10.1061/40604(273)116.

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van Dongeren, Ap, Gert Klopman, Ad Reniers, and Henri Petit. "High-Quality Laboratory Wave Generation for Flumes and Basins." In Fourth International Symposium on Ocean Wave Measurement and Analysis. Reston, VA: American Society of Civil Engineers, 2002. http://dx.doi.org/10.1061/40604(273)120.

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Sparboom, Uwe, Jan Wienke, and Hocine Oumeraci. "Laboratory ``Freak Wave'' Generation for the Study of Extreme Wave Loads on Piles." In Fourth International Symposium on Ocean Wave Measurement and Analysis. Reston, VA: American Society of Civil Engineers, 2002. http://dx.doi.org/10.1061/40604(273)126.

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Reports on the topic "Wave Analysis Laboratory"

1

Lacy, Jessica R., and David M. Rubin. Analysis of Results from Large-Scale Wave-Current Laboratory Experiments. Fort Belvoir, VA: Defense Technical Information Center, January 2009. http://dx.doi.org/10.21236/ada526731.

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2

Talbot, John M., and Chung Chan. Advanced Dectector Development, Laboratory Simulations, Diagnostic Development, and Data Analysis on Wake Physics. Fort Belvoir, VA: Defense Technical Information Center, June 1994. http://dx.doi.org/10.21236/ada285852.

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