Relevant bibliographies by topics / AngularJS validation

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  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'AngularJS validation'

Author: Grafiati
Published: 4 June 2021
Last updated: 5 February 2022

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Journal articles on the topic "AngularJS validation"

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van Leeuwen, Floor. "Hipparcos Data Validation." Highlights of Astronomy 12 (2002): 657–60. http://dx.doi.org/10.1017/s1539299600014593.

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AbstractAn overview is presented of tests performed to check the statistical properties of the formal errors on the Hipparcos parallaxes. It is shown that there is no evidence for systematic or correlated errors beyond a correlation level of 0.12 and an angular scale of 1.2 degrees.
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Ross, Cameron, Peter Lambs, Paul McAlpine, Gavin Kennedy, and Chris Button. "Validation of gyroscope sensors for snow sports performance monitoring." International Journal of Computer Science in Sport 19, no. 1 (2020): 51–59. http://dx.doi.org/10.2478/ijcss-2020-0004.

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AbstractWearable sensors that can be used to measure human performance outcomes are becoming increasingly popular within sport science research. Validation of these sensors is vital to ensure accuracy of extracted data. The aim of this study was to establish the validity and reliability of gyroscope sensors contained within three different inertial measurement units (IMU). Three IMUs (OptimEye, I Measure U and Logger A) were fixed to a mechanical calibration device that rotates through known angular velocities and positions. RMS scores for angular displacement, which were calculated from the integrated angular velocity vectors, were 3.85° ± 2.21° and 4.34° ± 2.57° for the OptimEye and IMesU devices, respectively. The RMS error score for the Logger A was 22.76° ± 23.22°, which was attributed to a large baseline shift of the angular velocity vector. After a baseline correction of all three devices, RMS error scores were all below 3.90°. Test re-test reliability of the three gyroscope sensors were high with coefficient of variation (CV%) scores below 2.5%. Overall, the three tested IMUs are suitable for measuring angular displacement of snow sports manoeuvres after baseline corrections have been made. Future studies should investigate the accuracy and reliability of accelerometer and magnetometer sensors contained in each of the IMUs to be used to identify take-off and landing events and the orientation of the athlete at those events.
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Hernández-Márquez, Eduardo, Carlos Alejandro Avila-Rea, José Rafael García-Sánchez, et al. "New “Full-Bridge Buck Inverter–DC Motor” System: Steady-State and Dynamic Analysis and Experimental Validation." Electronics 8, no. 11 (2019): 1216. http://dx.doi.org/10.3390/electronics8111216.

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A mathematical model of a new “full-bridge Buck inverter–DC motor” system is developed and experimentally validated. First, using circuit theory and the mathematical model of a DC motor, the dynamic behavior of the system under study is deduced. Later, the steady-state, stability, controllability, and flatness properties of the deduced model are described. The flatness property, associated with the mathematical model, is then exploited so that all system variables and the input can be differentially parameterized in terms of the flat output, which is determined by the angular velocity. Then, when a desired trajectory is proposed for the flat output, the input signal is calculated offline and is introduced into the system. In consequence, the validation of the mathematical model for constant and time-varying duty cycles is possible. Such a validation of this mathematical model is tackled from two directions: (1) by circuit simulation through the SimPowerSystems toolbox of Matlab-Simulink and (2) via a prototype of the system built by using Matlab-Simulink and a DS1104 board. The good similarities between the circuit simulation and the experimental results allow satisfactorily validating the mathematical model.
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Munoz-Sabater, Joaquin, Patricia de Rosnay, Carlos Jimenez, Lars Isaksen, and Clement Albergel. "SMOS Brightness Temperature Angular Noise: Characterization, Filtering, and Validation." IEEE Transactions on Geoscience and Remote Sensing 52, no. 9 (2014): 5827–39. http://dx.doi.org/10.1109/tgrs.2013.2293200.

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Hwang, Joo, Hyun-Mee Oh, Mi-Hwa Kim, et al. "Simultaneous Quantitation and Validation of Triterpenoids and Phytosteroids in Phaseolus angularis Seeds." Molecules 19, no. 7 (2014): 10309–19. http://dx.doi.org/10.3390/molecules190710309.

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Joshi, Himani, Sumit J. Darak, Mohammad Alaee-Kerahroodi, and Bhavani Shankar Mysore Rama Rao. "Reconfigurable and Intelligent Ultrawideband Angular Sensing: Prototype Design and Validation." IEEE Transactions on Instrumentation and Measurement 70 (2021): 1–15. http://dx.doi.org/10.1109/tim.2021.3058406.

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Chen, Zeng Tao, and Rahul Datta. "A Stress-State Related Void Coalescence Criterion and its Validation." Applied Mechanics and Materials 44-47 (December 2010): 2656–60. http://dx.doi.org/10.4028/www.scientific.net/amm.44-47.2656.

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We propose a new critical void volume fraction (fc) criterion that identifies the onset of void coalescence based on the stress state of the material as compared to the definition of the phenomenological criterion by Tvergaard and Needleman [1], where void coalescence is predicted based merely on a constant value for critical void volume fraction. The new fc criterion is obtained using the finite element analysis of the unit cell model of clustered voids. Validation of this new criterion is done by implementing the new coalescence criterion into the Gurson-Tvergaard-Needleman (GTN) [1-3] model and simulating the ductile fracture experiment of a series of angularly notched sheet samples of dual phase (DP), advanced high strength steels (AHSS). A methodology has been devised to construct a stress triaxiality-based void coalescence criterion. Validation of the methodology has been performed using tensile tests of angularly notched samples of DP490 AHSS. Experimental data is compared with FE simulations in order to verify the dependency of void coalescence on stress triaxiality.
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Perrin, Muriel, Cyril Poupon, Bernard Rieul, et al. "Validation of q -ball imaging with a diffusion fibre-crossing phantom on a clinical scanner." Philosophical Transactions of the Royal Society B: Biological Sciences 360, no. 1457 (2005): 881–91. http://dx.doi.org/10.1098/rstb.2005.1650.

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Magnetic resonance (MR) diffusion imaging provides a valuable tool used for inferring structural anisotropy of brain white matter connectivity from diffusion tensor imaging. Recently, several high angular resolution diffusion models were introduced in order to overcome the inadequacy of the tensor model for describing fibre crossing within a single voxel. Among them, q -ball imaging (QBI), inherited from the q -space method, relies on a spherical Radon transform providing a direct relationship between the diffusion-weighted MR signal and the orientation distribution function (ODF). Experimental validation of these methods in a model system is necessary to determine the accuracy of the methods and to optimize them. A diffusion phantom made up of two textile rayon fibre (comparable in diameter to axons) bundles, crossing at 90°, was designed and dedicated to ex vivo q -ball validation on a clinical scanner. Normalized ODFs were calculated inside regions of interest corresponding to monomodal and bimodal configurations of underlying structures. Three-dimensional renderings of ODFs revealed monomodal shapes for voxels containing single-fibre population and bimodal patterns for voxels located within the crossing area. Principal orientations were estimated from ODFs and were compared with a priori structural fibre directions, validating efficiency of QBI for depicting fibre crossing. In the homogeneous regions, QBI detected the fibre angle with an accuracy of 19° and in the fibre-crossing region with an accuracy of 30°.
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Maíz Apellániz, J., M. Pantaleoni González, and R. H. Barbá. "Validation of the accuracy and precision ofGaiaEDR3 parallaxes with globular clusters." Astronomy & Astrophysics 649 (April 28, 2021): A13. http://dx.doi.org/10.1051/0004-6361/202140418.

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Context.The recent early third data release (EDR3) from theGaiamission has produced parallaxes for 1.468 × 109sources with better quality than those reported in the previous data release. Nevertheless, there are calibration issues with the data that require corrections to the published values and uncertainties.Aims.We want to properly characterize the behavior of the random and systematic uncertainties of theGaiaEDR3 parallaxes in order to maximize the precision of the derived distances without compromising their accuracy. We also aim to provide a step-by-step procedure for the calculation of distances to stars and stellar clusters when using these parallaxes.Methods.We reanalyzed some of the data presented in the calibration papers for quasar and Large Magellanic Cloud (LMC) parallaxes and combine these results with measurements for six bright globular clusters. We calculated the angular covariance of EDR3 parallaxes at small separations (up to a few degrees) based on the LMC results and combined it with the results for larger angles using quasars to obtain an approximate analytical formula for the angular covariance over the whole sky. The results for the six globular clusters were used to validate the parallax bias correction as a function of magnitude, color, and ecliptic latitude and to determine the multiplicative constantkused to convert internal uncertainties to external ones.Results.The angular covariance at zero separation is estimated to be 106 μas2, yielding a minimum (systematic) uncertainty for EDR3 parallaxes of 10.3 μas for individual stars or compact stellar clusters. This value can be slightly reduced for globular clusters that span ≳30′ after considering the behavior of the angular covariance of the parallaxes for small separations. A recent parallax bias correction is found to work quite well, except perhaps for the brighter magnitudes, where improvements may be possible. The value ofkis found to be 1.1–1.7 and to depend onG. We find that stars with moderately large values of the renormalized unit weight error can still provide useful parallaxes, albeit with larger values ofk. We give accurate and preciseGaiaEDR3 distances to the six globular clusters, and for the specific case of 47 Tuc we are able to beat the angular covariance limit through the use of the background Small Magellanic Cloud as a reference and derive a high-precision distance of 4.53 ± 0.06 kpc. Finally, a recipe for the derivation of distances to stars and stellar clusters usingGaiaEDR3 parallaxes is given.
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Cappa, Paolo, Lorenzo Masia, and Fabrizio Patanè. "Numerical Validation of Linear Accelerometer Systems for the Measurement of Head Kinematics." Journal of Biomechanical Engineering 127, no. 6 (2005): 919–28. http://dx.doi.org/10.1115/1.2049329.

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The purpose of this study was to analytically exploit the capabilities of head-mounted systems instrumented with linear accelerometers (ACs) for field use in redundant configurations. We simulated different headsets equipped with uni-, bi- or triaxial sensors with a number of axes that lie in the range of 12–24; the ACs were located on a hemispherical surface by adopting a priori criterion while their orientation was randomized. In addition, for a comparative purpose the nine accelerometer scheme (one triaxial AC and three biaxial ACs addressed in the following as “3-2-2-2 configuration”) was also analyzed in the present paper. We simulated and statistically assessed the performances of hemispherical headsets in the test case of a healthy subject walking freely at normal pace over level ground. The numerical results indicated that a well designed instrumented headset can retrieve the angular acceleration and (a0−g) component with rms errors of about 2% and 0.5%, respectively, and angular velocity with a drift error of about 20% in a 6s trial. On the contrary, the pose of the headset cannot be evaluated because of the drift induced by the integration process. In general, we can state that headsets with uni-, bi- or triaxial ACs have comparable performances. The main implications of the above-mentioned observations are (a) neither expensive triaxial ACs nor assembling procedure based on the use of orthogonal mounting blocks are needed; (b) redundant arrays of low-cost uni- or biaxial ACs can effectively be used to reach adequate performances in biomechanical studies where head acceleration and velocity are investigated; (c) while estimates of angular acceleration with accelerometers are accurate, estimations of angular velocities, linear velocities and pose are not.
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Dissertations / Theses on the topic "AngularJS validation"

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Strålberg, Linda. "Prevention of Input Validation Vulnerabilities on the Client-Side : A Comparison Between Validating in AngularJS and React Applications." Thesis, Högskolan i Skövde, Institutionen för informationsteknologi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-17346.

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The aim of this research was to test the JavaScript library React and framework AngularJS against each other in regard of the response time of the validation and validation robustness. The experiments in this work were performed to support developers in their decision making regarding which library or framework to use. There are many other aspects to consider when choosing which library or framework to develop in other than the security and response time related aspects mentioned in this work, but this work can, amongst other information, give yet another viewpoint to the developers. The results showed that there is no difference amongst them security wise, but that it was somewhat faster to validate in a React application than in an AngularJS application.
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Choudhary, Anamika Nupur. "Campus Buddy." Thesis, Kansas State University, 2017. http://hdl.handle.net/2097/35406.

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Master of Science<br>Department of Computer Science<br>Daniel A. Andresen<br>New to K-State??? No worries!!! This app will be your first friend and help you with everything you may need. Every new incoming student to K-State has to do a set of mandatory activities before they start their classes. Many times they use a pamphlet or word of mouth by students or faculty around, on what to do and whom to visit. But, this information may not be reliable or could have been expired/updated, and students miss on certain crucial things which delays their work. The same follows with various events organized by the college to welcome new students. This app will be a solution for all these problems. It will provide students with all the details they need before they actually become familiar with the school and even after that. Each student gets to see the To-Do's which are a set of mandatory activities, he/she has to do before they enroll for the classes and also, he can know about various events happening around the university. Students can also suggest new events if they are not already updated in the events list. All these activities are monitored and controlled by the Admin.
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Leong, Lou Sai. "Fission fragment angular distribution and fission cross section validation." Phd thesis, Université Paris Sud - Paris XI, 2013. http://tel.archives-ouvertes.fr/tel-00924483.

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The present knowledge of angular distributions of neutron-induced fission is limited to a maximal energy of 15 MeV, with large discrepancies around 14 MeV. Only 238U and 232Th have been investigated up to 100 MeV in a single experiment. The n_TOF Collaboration performed the fission cross section measurement of several actinides (232Th, 235U, 238U, 234U, 237Np) at the n_TOF facility using an experimental set-up made of Parallel Plate Avalanche Counters (PPAC), extending the energy domain of the incident neutron above hundreds of MeV. The method based on the detection of the 2 fragments in coincidence allowed to clearly disentangle the fission reactions among other types of reactions occurring in the spallation domain. I will show the methods we used to reconstruct the full angular resolution by the tracking of fission fragments. Below 10 MeV our results are consistent with existing data. For example in the case of 232Th, below 10 MeV the results show clearly the variation occurring at the first (1 MeV) and second (7 MeV) chance fission, corresponding to transition states of given J and K (total spin and its projection on the fission axis), and a much more accurate energy dependence at the 3rd chance threshold (14 MeV) has been obtained. In the spallation domain, above 30 MeV we confirm the high anisotropy revealed in 232Th by the single existing data set. I'll discuss the implications of this finding, related to the low anisotropy exhibited in proton-induced fission. I also explore the critical experiments which is valuable checks of nuclear data. The 237Np neutron-induced fission cross section has recently been measured in a large energy range (from eV to GeV) at the n TOF facility at CERN. When compared to previous measurements, the n TOF fission cross section appears to be higher by 5-7 % beyond the fission threshold. To check the relevance of n TOF data, we simulate a criticality experiment performed at Los Alamos with a 6 kg sphere of 237Np. This sphere was surrounded by enriched uranium 235U so as to approach criticality with fast neutrons. The simulation predicts a multiplication factor keff in better agreement with the experiment (the deviation of 750 pcm is reduced to 250 pcm) when we replace the ENDF/B- VII.0 evaluation of the 237Np fission cross section by the n TOF data. We also explore the hypothesis of deficiencies of the inelastic cross section in 235U which has been invoked by some authors to explain the deviation of 750 pcm. The large distortion that should be applied to the inelastic cross sections in order to reconcile the critical experiment with its simulation is incompatible with existing measurements. Also we show that the nubar of 237Np can hardly be incriminated because of the high accuracy of the existing data. Fission rate ratios or averaged fission cross sections measured in several fast neutron fields seem to give contradictory results on the validation of the 237Np cross section but at least one of the benchmark experiments, where the active deposits have been well calibrated for the number of atoms, favors the n TOF data set. These outcomes support the hypothesis of a higher fission cross section of 237Np.
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N’Diaye, M., F. Martinache, N. Jovanovic, et al. "Calibration of the island effect: Experimental validation of closed-loop focal plane wavefront control on Subaru/SCExAO." EDP SCIENCES S A, 2018. http://hdl.handle.net/10150/627093.

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Context. Island effect (IE) aberrations are induced by differential pistons, tips, and tilts between neighboring pupil segments on ground-based telescopes, which severely limit the observations of circumstellar environments on the recently deployed exoplanet imagers (e.g., VLT/SPHERE, Gemini/GPI, Subaru/SCExAO) during the best observing conditions. Caused by air temperature gradients at the level of the telescope spiders, these aberrations were recently diagnosed with success on VLT/SPHERE, but so far no complete calibration has been performed to overcome this issue. Aims. We propose closed-loop focal plane wavefront control based on the asymmetric Fourier pupil wavefront sensor (APF-WFS) to calibrate these aberrations and improve the image quality of exoplanet high-contrast instruments in the presence of the IE. Methods. Assuming the archetypal four-quadrant aperture geometry in 8 m class telescopes, we describe these aberrations as a sum of the independent modes of piston, tip, and tilt that are distributed in each quadrant of the telescope pupil. We calibrate these modes with the APF-WFS before introducing our wavefront control for closed-loop operation. We perform numerical simulations and then experimental tests on a real system using Subaru/SCExAO to validate our control loop in the laboratory and on-sky. Results. Closed-loop operation with the APF-WFS enables the compensation for the IE in simulations and in the laboratory for the small aberration regime. Based on a calibration in the near infrared, we observe an improvement of the image quality in the visible range on the SCExAO/VAMPIRES module with a relative increase in the image Strehl ratio of 37%. Conclusions. Our first IE calibration paves the way for maximizing the science operations of the current exoplanet imagers. Such an approach and its results prove also very promising in light of the Extremely Large Telescopes (ELTs) and the presence of similar artifacts with their complex aperture geometry.
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Patil, Nishad. "Design And Analysis Of MEMS Angular Rate Sensors." Thesis, Indian Institute of Science, 2006. http://hdl.handle.net/2005/291.

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Design and analysis of polysilicon and single crystal silicon gyroscopes have been carried out. Variations in suspension design have been explored. Designs that utilize in-plane and out-of-plane sensing are studied. Damping plays an important role in determining the sense response. Reduction in damping directly affects sensor performance. The various damping mechanisms that are prevalent in gyroscopes are studied. Perforations on the proof mass are observed to significantly reduce the damping in the device when operated in air. The effects of perforation geometry and density have been analyzed. The analysis results show that there is a two orders of magnitude reduction in damping of thick gyroscope structures with optimized perforation design. Equivalent circuit lumped parameter models have been developed to analyze gyroscope performance. The simulation results of these models have been compared with results obtained from SABER, a MEMS specific system level design tool from Coventor-ware. The lumped parameter models are observed to produce faster simulation results with an accuracy comparable to that of Coventorware Three gyroscopes specific to the PolyMUMPS fabrication process have been designed and their performance analyzed. Two of the designs sense motion out-of-plane and the other senses motion in-plane. Results of the simulation show that for a given damping, the gyro design with in-plane modes gives a resolution of 4◦/s. The out-of-plane gyroscopes have two variations in suspension. The hammock suspension resolves a rate of 25◦/s in a 200 Hz bandwidth while the design with folded beam suspension resolves a rate of 2◦/s in a 12 Hz bandwidth. A single crystal silicon in-plane gyroscope has been designed with vertical electrodes to sense Coriolis motion. This design gives an order of magnitude higher capacitance change for a given rotation in comparison to conventional comb-finger design. The effects of process induced residual stress on the characteristic frequencies of the polysilicon gyroscopes are also studied. The in-plane gyroscope is found to be robust to stress variations. Analysis results indicate that the tuning fork gyroscope with the hammock suspension is the most susceptible to compressive residual stress, with a significant drop in sensitivity at high stress values.
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Amouroux, Charlotte. "Mesure des rendements de fission de l’Am-242 auprès du spectromètre Lohengrin (réacteur ILL) & Amélioration et validation du code semi empirique GEF." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112237/document.

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L’étude des rendements de fission a un impact majeur sur la caractérisation du processus de fission mais également sur le fonctionnement des réacteurs nucléaires. Bien que les rendements de fission thermiques des actinides majeurs (U-235, Pu-239) soient bien connus, ce n’est pas le cas de ceux de l’Am-242, ce que confirment les désaccords observés entre les principales bases de données évaluées. L’utilisation grandissante du combustible MOX dans les réacteurs nucléaires et la réduction de la radiotoxicité des déchets nucléaires nous poussent à étudier l’Am-241 et l’Am-242. Ainsi, les rendements issus de la fission de la réaction Am-241(2n,f) ont été mesurés auprès du spectromètre de masse Lohengrin situé à l’Institut Laue Langevin de Grenoble (France). Ces mesures ont permis la détermination de 41 rendements en masse. De plus, 20 rendements isotopiques ont pu être mesurés par spectrométrie gamma. Les expériences menées dans le cadre de cette thèse avaient également pour but de déterminer si les rendements de fission sont influencés par l’état de spin de l’Am-242. Afin de répondre à cette question, la mesure répétitive de rendements en masse pour différents rapports de taux de fission (Am-242m/Am-242g) a été réalisée. Nos résultats montrent que le spin du noyau cible n’a que peu d’influence sur les rendements en masse. De nouvelles expériences sont proposées afin de déterminer son influence sur les rapports isomériques. Les modèles théoriques actuels sont dans l’incapacité de prédire avec une précision suffisante les rendements de fission. Ainsi, l’industrie nucléaire a recours aux bases de données évaluées et aux modèles phénoménologiques. Néanmoins, les prédictions issues de modèles semi-empiriques implémentés dans le code GEF ont atteint un niveau suffisant pour faire de ce code un outil d’évaluation performant. Le contenu physique, les développements, les validations et l’extension du code seront également présentés dans cette thèse<br>The study of fission yields has a major impact on the characterization and understanding of the fission process and is mandatory for reactor applications. While the yields are known for the major actinides (U-235, Pu-239) in the thermal neutron-induced fission, only few measurements were performed on Am-242. Moreover, the two main data libraries do not agree among each other on the light peak. Am-241 and Am-242 are nuclei of interest for the MOX-fuel reactors and for the reduction of nuclear waste radiotoxicity using transmutation reactions. Thus, a campaign of precise measurement of the fission mass yields from the reaction Am-241(2n,f) was performed at the Lohengrin mass spectrometer (ILL, France) for both the light and the heavy peak. Forty-one masses were measured. Moreover, the measurement of the isotopic fission yields on the heavy peak by gamma-ray spectrometry led to the extraction of 20 independent isotopic yields. Our measurement was also meant to determine whether there is a difference in fission yields between the Am-242 isomeric state and its ground state as it exists in fission cross sections. The experimental method used to answer this question is based on the measurement a set of fission mass yields as a function of the ratio of Am-242gs to Am-242m fission rate. Results show that the mass yields are independent of the fission rate ratio. A future experimental campaign is proposed to observe a possible influence on the isomeric yields. The theoretical models are nowadays unable to predict the fission yields with enough accuracy and therefore we have to rely on experimental data and phenomenological models. The accuracy of the predictions of the semi empirical GEF fission model predictions makes it a useful tool for evaluation. This thesis also presents the physical content and part of the development of this model. Validation of the kinetic energy distributions, isomeric yields and fission yields predictions was performed. The extension of the GEF model at high energy is also presented
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Metwalli, Nader. "High angular resolution diffusion-weighted magnetic resonance imaging: adaptive smoothing and applications." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/34854.

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Diffusion-weighted magnetic resonance imaging (MRI) has allowed unprecedented non-invasive mapping of brain neural connectivity in vivo by means of fiber tractography applications. Fiber tractography has emerged as a useful tool for mapping brain white matter connectivity prior to surgery or in an intraoperative setting. The advent of high angular resolution diffusion-weighted imaging (HARDI) techniques in MRI for fiber tractography has allowed mapping of fiber tracts in areas of complex white matter fiber crossings. Raw HARDI images, as a result of elevated diffusion-weighting, suffer from depressed signal-to-noise ratio (SNR) levels. The accuracy of fiber tractography is dependent on the performance of the various methods extracting dominant fiber orientations from the HARDI-measured noisy diffusivity profiles. These methods will be sensitive to and directly affected by the noise. In the first part of the thesis this issue is addressed by applying an objective and adaptive smoothing to the noisy HARDI data via generalized cross-validation (GCV) by means of the smoothing splines on the sphere method for estimating the smooth diffusivity profiles in three dimensional diffusion space. Subsequently, fiber orientation distribution functions (ODFs) that reveal dominant fiber orientations in fiber crossings are then reconstructed from the smoothed diffusivity profiles using the Funk-Radon transform. Previous ODF smoothing techniques have been subjective and non-adaptive to data SNR. The GCV-smoothed ODFs from our method are accurate and are smoothed without external intervention facilitating more precise fiber tractography. Diffusion-weighted MRI studies in amyotrophic lateral sclerosis (ALS) have revealed significant changes in diffusion parameters in ALS patient brains. With the need for early detection of possibly discrete upper motor neuron (UMN) degeneration signs in patients with early ALS, a HARDI study is applied in order to investigate diffusion-sensitive changes reflected in the diffusion tensor imaging (DTI) measures axial and radial diffusivity as well as the more commonly used measures fractional anisotropy (FA) and mean diffusivity (MD). The hypothesis is that there would be added utility in considering axial and radial diffusivities which directly reflect changes in the diffusion tensors in addition to FA and MD to aid in revealing neurodegenerative changes in ALS. In addition, applying adaptive smoothing via GCV to the HARDI data further facilitates the application of fiber tractography by automatically eliminating spurious noisy peaks in reconstructed ODFs that would mislead fiber tracking.
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Caron, Jérôme. "Etude et validation clinique d'un modèle aux moments entropique pour le transport de particules énergétiques : application aux faisceaux d'électrons pour la radiothérapie externe." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0452/document.

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En radiothérapie externe, les simulations des dépôts de dose aux patients sont réalisées sur des systèmesde planification de traitement (SPT) dotés d'algorithmes de calcul qui diffèrent dans leur modélisationdes processus physiques d'interaction des électrons et des photons. Or ces SPT, bien que rapides enclinique, montrent parfois des erreurs significatives aux abords des hétérogénéités du corps humain. Montravail de thèse a consisté à valider le modèle aux moments entropique M1 pour des faisceaux d'électronscliniques. Cet algorithme développé au CELIA dans le cadre de la physique des plasmas repose sur larésolution de l'équation cinétique de transport de Boltzmann linéarisée selon une décomposition auxmoments. M1 nécessite une fermeture du système d'équations basée sur le H-Théorème (maximisationde l'entropie). Les cartographies de dose 1D de faisceaux d'électrons de 9 et 20 MeV issues de M1 ontété comparées à celles issues de codes de référence : macro Monte-Carlo clinique (eMC) et full Monte-Carlo (GEANT-MCNPX) ainsi qu'à des données expérimentales. Les cas tests consistent en des fantômesd'abord homogènes puis de complexité croissante avec insertion d'hétérogéenéités mimant les tissus osseuxet pulmonaire. In fine, le modèle aux moments M1 démontre des propriétés de précision meilleures quecertains algorithmes de type Pencil Beam Kernel encore utilisés cliniquement et proches de celles fourniespar des codes full Monte-Carlo académiques ou macro Monte-Carlo cliniques, même dans les cas testscomplexes retenus. Les performances liées aux temps de calcul de M1 ont été évaluées comme étantmeilleures que celles de codes Monte-Carlo<br>In radiotherapy field, dose deposition simulations in patients are performed on Treatment Planning Systems (TPS) equipped with specific algorithms that differ in the way they model the physical interaction processes of electrons and photons. Although those clinical TPS are fast, they show significant discrepancies in the neighbooring of inhomogeneous tissues. My work consisted in validating for clinical electron beams an entropic moments based algorithm called M1. Develelopped in CELIA for warm and dense plasma simulations, M1 relies on the the resolution of the linearized Boltzmann kinetic equation for particles transport according to a moments decomposition. M1 equations system requires a closure based on H-Theorem (entropy maximisation). M1 dose deposition maps of 9 and 20 MeV electron beams simulations were compared to those extracted from reference codes simulations : clinical macro Monte-Carlo (eMC) and full Monte-carlo (GEANT4-MCNPX) codes and from experimental data as well. The different test cases consisted in homogeneous et complex inhomogeneous fantoms with bone and lung inserts. We found that M1 model provided a dose deposition accuracy better than some Pencil Beam Kernel algorithm and close of those furnished by clinical macro and academic full Monte-carlo codes, even in the worst inhomogeneous cases. Time calculation performances were also investigated and found better than the Monte-Carlo codes
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Sun, Chun-Che, and 孫俊哲. "Numerical Analysis and Experiment Validation of Dynamic Characteristic Frequency of Angular Contact Ball-Bearing at High Speed Spindle System." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/46180875593876049686.

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碩士<br>國立中興大學<br>機械工程學系所<br>104<br>In this research, the dynamic characteristics of TPI 7014C angular contact ball bearing used in high-speed spindle system is studied. Under the running conditions of different preload and rotating speed, a number of dynamic states are investigated, consisting of the balance among the centrifugal force, gyroscopic moment and ball-race contact forces, and the geometric relationship of contact deformation. According to the dynamic characteristics, the contact angles between the ball and inner/outer race are estimated. Using the estimated contact angles between the ball and the inner/outer race, the six characteristic frequencies of bearing can be determined: the rotation frequencies of shaft and cage, the roller spin frequency, the frequency of roller passing through one inner race point, the frequency of roller passing through one outer race point, the frequency of a roller point passing through inner and outer race. The FFT algorithm is utilized to analyze spectral features of different bearing defects. The numerical results of the characteristic frequencies are compared with the experimental observations to verify the accuracy of the estimated contact angles between the ball and the inner/outer race.
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Book chapters on the topic "AngularJS validation"

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Voltolini, Danielle Raphaela, Samuel Kluthcovsky, Eduardo Márcio de Oliveira Lopes, and Carlos Alberto Bavastri. "Experimental Validation of Angular Viscoelastic Dynamic Neutralizers Designed for Flexural Vibration Control in Rotating Machines." In Mechanisms and Machine Science. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-99270-9_7.

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Sakurai, Yoshihisa, Yuji Ohgi, and Takeo Maruyama. "Development and Validation of an Automated Method to Detect Gait Events Using Acceleration and Angular Rate (P216)." In The Engineering of Sport 7. Springer Paris, 2008. http://dx.doi.org/10.1007/978-2-287-09413-2_45.

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Conference papers on the topic "AngularJS validation"

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Brand, Pierre, Benoît Boulanger, Patricia Segonds, et al. "Experimental validation of Angular Quasi-Phase-Matching." In Nonlinear Optics: Materials, Fundamentals and Applications. OSA, 2009. http://dx.doi.org/10.1364/nlo.2009.nmd6.

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Umek, Anton, Anton Kos, and Sao Tomaic. "Validation of Smartphone Gyroscopes for Angular Tracking in Biofeedback Applications." In 2015 International Conference on Identification, Information, and Knowledge in the Internet of Things (IIKI). IEEE, 2015. http://dx.doi.org/10.1109/iiki.2015.70.

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Peng, Jingjing, Wenjie Fan, Lizhao Wang, Jvcai Li, Dingfang Tian, and Xiru Xu. "Modeling and validation of the angular clumping index of forest canopy." In 2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS). IEEE, 2017. http://dx.doi.org/10.1109/igarss.2017.8127082.

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Weidong Huang, Maolin Huang, and Chun-Cheng Lin. "Aesthetic of angular resolution for node-link diagrams: Validation and algorithm." In 2011 IEEE Symposium on Visual Languages and Human-Centric Computing (VL/HCC 2011). IEEE, 2011. http://dx.doi.org/10.1109/vlhcc.2011.6070402.

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Schneider, T., B. Eilert, M. Stonis, and L. Overmeyer. "Validation of an optical system for measuring the absolute angular position." In 2017 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM). IEEE, 2017. http://dx.doi.org/10.1109/ieem.2017.8289939.

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Santos, M. F., M. F. Silva, V. F. Vidal, et al. "Experimental Validation of Quadrotors Angular Stability in a Gyroscopic Test Bench." In 2018 22nd International Conference on System Theory, Control and Computing (ICSTCC). IEEE, 2018. http://dx.doi.org/10.1109/icstcc.2018.8540660.

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Sabet, Arash A., Eftyxios Christoforou, Benjamin Zatlin, Guy M. Genin, and Philip V. Bayly. "Validation of an MRI-Based Method for Measuring the Deformation of the Brain During Angular Acceleration." In ASME 2007 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2007. http://dx.doi.org/10.1115/sbc2007-175641.

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A magnetic resonance (MR) method for measuring the deformation of the brain during angular acceleration was validated in a simple model system. Experimentally-derived shear strain patterns in a cylindrical gel “phantom” under angular acceleration were compared to analogous strain fields predicted by finite element simulation.
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Moghadam, Farid K., and Amir R. Nejad. "Experimental Validation of Angular Velocity Measurements for Wind Turbines Drivetrain Condition Monitoring." In ASME 2019 2nd International Offshore Wind Technical Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/iowtc2019-7620.

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Abstract Drivetrain bearings are seen as the most common reason of the wind turbine drivetrain system failures and the consequent downtimes. In this study, the angular velocity error function is used for the condition monitoring of the bearings and gears in the wind turbine drivetrain. This approach benefits from using the sensor data and the dedicated communication network which already exist in the turbine for performance monitoring purposes. Minor required modification includes an additional moderate sampling frequency encoder without any need of adding an extra condition monitoring system. The additional encoder is placed on the low speed shaft and can also be used as the backup for the high speed shaft encoder which is critical for turbine control purposes. A theory based on the variations of the energy of response around the defect frequency is suggested to detect abnormalities in the drivetrain operation. The proposed angular velocity based method is compared with the classical vibration-based detection approach based on axial/radial acceleration data, for the faults initiated by different types of excitation sources. The method is experimentally evaluated using the data obtained from the encoders and vibration sensors of an operational wind turbine.
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Roos, Arne, Joakim Karlsson, Peter A. van Nijnatten, et al. "Angular-dependent optical properties of coated glazings: validation of two predictive algorithms." In International Symposium on Optical Science and Technology, edited by Carl M. Lampert, Claes-Goran Granqvist, and Keith L. Lewis. SPIE, 2001. http://dx.doi.org/10.1117/12.448261.

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Hannis, John M., John D. Maltson, Robert J. Corry, and Nigel Johnson. "Analysis and Validation of Turbine Disc Cooling." In ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-gt-097.

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Design and analysis of the turbine disc cooling and secondary air systems, thermal analysis of the rotor structure and subsequent validation of the temperature levels are described for a 4.9 MW industrial gas turbine. A general purpose air flow network solver specifically developed for GT air systems is used to analyse and optimise the disc cooling air flows and determine the interaction between disc air, rotor blade cooling air and leakage. Analysis of the individual wheelspace cavities is undertaken accounting for windage heating, rim sealing and potential for ingestion, heat transfer levels and cooling air temperature rise. This involves both simple 1D methods based on conservation of angular momentum and CFD analysis to determine flow recirculation mechanisms in the disc wheelspace. The thermal boundary conditions from the above are applied to a finite difference thermal analysis model of the turbine rotor to predict temperature distributions at both steady state and transient conditions. Test validation on the engine provides air system pressures and temperatures to validate the airflow analysis and rotor temperatures from thermal paints to validate the thermal analysis.
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