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Добірка наукової літератури з теми "Angular effect"

Автор: Grafiati

Опубліковано: 15 березня 2025

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Статті в журналах з теми "Angular effect"

Sales, Jorge Henrique de Oliveira, Cássio Almeida Lima, Gislan Silveira Santos, and Alfredo Takashi Suzuki. "Electronic Angular Tunneling Effect." Journal of Engineering and Exact Sciences 8, no. 3 (May 26, 2022): 14294–01. http://dx.doi.org/10.18540/jcecvl8iss3pp14294-01e.

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In this article we show that the probability for an electron tunneling a rectangular potential barrier depends on its angle of incidence measured with respect to the normal line. The majority of the studies in the field consider a one-dimensional tunneling of an electron of mass in a potential barrier along the -axis. Using a two-dimensional approach, we observed that the angle of incidence of the electron influences the probability of tunneling.

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Brasselet, Etienne. "Harmonic angular Doppler effect." Nature Photonics 10, no. 6 (May 31, 2016): 362–64. http://dx.doi.org/10.1038/nphoton.2016.106.

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Powers, PNR, and AJ Harrison. "Influences of a rider on the rotation of the horse–rider system during jumping." Equine and Comparative Exercise Physiology 1, no. 1 (February 2004): 33–40. http://dx.doi.org/10.1079/ecp20032.

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AbstractThis study examined the effects of a rider on the angular momentum and angular velocity of the jumping horse, particularly during the flight phase. Sagittal plane video recordings were digitized of eight horses jumping a vertical fence (1 m high) under two conditions: Loose and Ridden. An experienced rider rode the horses during the Ridden condition. Using appropriate segmental inertial data for the horse and rider, angular momentum and angular velocity were calculated for the Loose and Ridden conditions. Estimates of the various rider effects on angular momentum and angular velocity were obtained by comparison of Loose and Ridden conditions and examination of the contributions of the horse and rider segments to the total angular momentum. The results showed that the rider's effect on angular momentum was significant but that the rider's segmental contribution to the angular momentum of the horse–rider system was minimal. Repeated-measures ANOVA revealed that the rider had a significant effect on the angular momentum and angular velocity of the horse during the flight phase (P<0.01). However, the rider did not have a significant effect on the transfer of angular momentum during the flight. We concluded that the rider's instruction has a greater influence on the horse's motion than the mechanical transfer between rider and horse.

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Qiu, Tianhui, and Guojian Yang. "Electromagnetically induced angular Talbot effect." Journal of Physics B: Atomic, Molecular and Optical Physics 48, no. 24 (October 28, 2015): 245502. http://dx.doi.org/10.1088/0953-4075/48/24/245502.

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Park, Sungjoon, and Bohm-Jung Yang. "Phonon Angular Momentum Hall Effect." Nano Letters 20, no. 10 (September 21, 2020): 7694–99. http://dx.doi.org/10.1021/acs.nanolett.0c03220.

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Liu, Yang, Yu Shan, Hong Ying, Du Wala, Xiang Zhang, A. Ruhan, Su Rina, and Su Rina. "Examining the Angular Effects of UAV-LS on Vegetation Metrics Using a Framework for Mediating Effects." Forests 13, no. 8 (August 2, 2022): 1221. http://dx.doi.org/10.3390/f13081221.

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Discrete point cloud data from unmanned aerial vehicle laser scanning (UAV-LS) can provide information on the three-dimensional structure of a forest, the leaf area index (LAI) at the landscape or sample plot scales, the distribution of the vertical forest structure at a fine resolution, and other information. The retrieved parameters, however, may be affected in a non-negligible way by the inclusion of scan angle information. In this study, we introduced a relational model that encompasses the angular effect, predicted the mechanism of this effect, and extracted the vegetation structure indices that the angular effect might influence. Second, we quantified the direct and indirect effects, particularly the magnitude of the angular effect in broadleaf forests, and used mediated effects to investigate the components and processes that influence the angular effect. The findings demonstrate that some of the differences between the LAIe extracted by UAV-LS and the Decagon LAIe considering the angular effect of UAV-LS can be explained by adjusting physical LiDAR parameters (aerial height, laser divergence fraction, and scanning angle) and vertical forest structure variables. Along continuous and closed forest vertical gradients, the indirect angle impact is negative for the upper canopy and positive for the understory. Three-dimensional vegetation measurements were created using multiangle LiDAR data. In conclusion, this article (1) addresses the angular effect in UAV-LS; and (2) discusses how the angular effect affects 3D vegetation parameters such as LAIe, demonstrates the nonlinear trend of the angular effect, and demonstrates how multiangle LiDAR data can be used to obtain 3D vegetation parameters. This study serves as a reference for reducing the uncertainty in simulations of the angular effect and vegetation light transmission, in addition to the uncertainty in analyses of the vegetation characteristics determined by UAV-LS (e.g., the uncertainty of LAIe).

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Tong, Van-Canh, and Seong-Wook Hong. "Study on the running torque of angular contact ball bearings subjected to angular misalignment." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 232, no. 7 (September 20, 2017): 890–909. http://dx.doi.org/10.1177/1350650117732921.

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Angular misalignment is unavoidable in most applications of rolling-element bearings. The goal of this study is to examine the effects of angular misalignment on the running torque of angular contact ball bearings. A computational method to calculate the running torque of misaligned angular contact ball bearings was introduced. Then, the effects of angular misalignment, along with radial and axial loading, on the running torque of angular contact ball bearings were investigated for two representative preloading methods: constant-force preload and constant-displacement preload. The simulation results showed that (1) the angular misalignment, irrespective of bearing loading, significantly increases the angular contact ball bearing running torque when the constant-displacement preload method was implemented, and (2) the angular misalignment has an insignificant effect on the angular contact ball bearing running torque when the constant-force preload method was adopted. Furthermore, an extensive simulation was performed to examine the effect of load-induced angular misalignment on the running torque of angular contact ball bearings implemented in a geared shaft system. The simulation results showed that the radial load-induced angular misalignment requires additional running torque to the actual rotor-bearing systems, especially when using the constant-displacement preload.

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Fickler, Robert. "Generalized angle-orbital-angular-momentum Talbot effect." EPJ Web of Conferences 309 (2024): 11001. http://dx.doi.org/10.1051/epjconf/202430911001.

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Light containing twisted phase structures, i.e. light carrying orbital angular momenta (OAM), when propagating inside ring-core fibres leads to a complex interference dynamics resulting in the fundamental self-imaging phenomenon known as the Talbot effect in the angular domain. We study the effect in the classical and quantum optics domain and show that it can be used to implement higher-order beams splitters. Interestingly, such beam splitting operations become more compact the higher the splitting ratio. In addition, we show that a similar self-imaging effect appears for whispering gallery modes carrying OAM in step-index multi-mode fibres, which enables the application of the angular Talbot effect in off-the-shelf components. Finally, we extend the study of the angular Talbot effect through combing it with its Fourier-analogue, i.e. the Talbot effect in orbital angular momentum space. Thereby we implement the generalized angle-orbital-angular-momentum Talbot effect, which enables full control over the angular intensity distribution as well as the OAM spectrum of the light field. Moreover, the complex self-imaging dynamics can be used to sort OAM light fields, in principle, without any crosstalk and, thus, can be seen a promising method for OAM multiplexing schemes.

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Li, Hehe, Dong Xu, and Xinzhong Li. "Rotational Doppler Effect of Vector Beams." Photonics 12, no. 3 (March 6, 2025): 240. https://doi.org/10.3390/photonics12030240.

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The optical rotational Doppler effect occurs when vortex beams are scattered by rotating objects and demonstrate the Doppler frequency shifts in scattered beams, which are associated with the optical angular momentum of vortex beams and the relative rotating angular velocity. Here, we investigate the rotational Doppler effect of a rotating vector beam in its tight focusing and find that similar Doppler frequency shifts arise when the polarization order and vortex charge satisfy some specific relations. We note that the vortex charge is the indispensable parameter in the rotational Doppler effect of the vector vortex beam. Nonetheless, the sign and magnitude of the frequency shift are only determined by the angular frequency of the rotating beam and are irrelevant to the vortex charge of the beam. In addition, the on-axis energy flow and spin angular momentum in the focal plane can also be well modulated, accompanying the rotational Doppler effect of the vector vortex beam. Our results may be applied to an optical micro-manipulation, especially for some kinds of microparticles which are sensitive to frequency changes.

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Ogihara, M., H. Fujiwara, S. C. Jeong, W. Galster, S. M. Lee, Y. Nagashima, T. Mikumo, et al. "The effect of angular momentum coupling on the angular distribution of fission fragments." Zeitschrift f�r Physik A Atomic Nuclei 335, no. 2 (June 1990): 203–11. http://dx.doi.org/10.1007/bf01294475.

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Дисертації з теми "Angular effect"

Zhang, Shuting. "Angular effects of surface brightness temperature observed from Sentinel-3A/SLSTR data." Electronic Thesis or Diss., Strasbourg, 2024. http://www.theses.fr/2024STRAD055.

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Ce travail de thèse utilise les données TIR de SLSTR comme source principale pour extraire la température de brillance de la surface (SBT) en appliquant l’algorithme split-window, afin d’analyser l’effet angulaire sur la SBT. En se basant sur une base de données de simulation, une méthode d’extraction de la SBT a été développée et appliquée aux observations à double angle de SLSTR. L’étude a ensuite examiné l’amplitude et les caractéristiques des différences de SBT entre les vues nadir et obliques, en tenant compte de facteurs tels que l’occupation du sol /la couverture terrestre, la saison, la latitude et le climat. Enfin, l’outil GeoDetector a été utilisé pour effectuer une analyse d’attribution des effets angulaires sur la SBT
This study adopts SLSTR TIR data as the main data source and retrieves surface brightness temperature using split-window algorithm to analyze the angular effect of surface brightness temperature (SBT). Based on the simulation database, SBT retrieval method is developed and applied to SLSTR dual-angle SBT extraction. Then the magnitude and characteristics of SBT differences between nadir and oblique views were observed, considering factors such as land use/land cover, season, latitude and climate. Finally, GeoDetector tool was used to perform attribution analysis of SBT angular effects

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Monem, A. S. M. A. "Angular light scattering from phospholipid vesicles and the effect of magnetic fields." Thesis, University of Southampton, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373565.

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Le, Charles Tuan-Cong. "Angular memory effect and its interferometric applications in rough surface mean height profiling /." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/6005.

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Shaw, Matthew D. "On the Measurement of Angular Dependent Sound Transmission through Airborne Supercritical Plates." BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/2835.

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A method of measuring angular dependence of acoustic transmission through supercritical plates in air is discussed. The coincidence effect occurs in a supercritical plate when the component of the acoustic wave number parallel to the plate matches the bending wave number in the plate. The transmission of sound is a maximum at the angle where this trace wave number matching occurs. The theory of the coincidence effect is well-defined for unbounded thin plates using plane-wave excitation. However, experimental results for finite plates are known to diverge from theory, especially near grazing angles. An experimental setup has been developed in order to observe the coincidence effect using continuous-wave excitation and phased-array methods. Experimental results through a 0.5 mm thick aluminum bar exhibit strong maxima at the predicted coincidence angles, showing that coincidence is observable using continuous waves. Also, transmission near grazing angles is seen to diverge from infinite plate theory. Further work is suggested to improve the measurement setup and explore the source of the divergence.

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N’Diaye, M., F. Martinache, N. Jovanovic, J. Lozi, O. Guyon, B. Norris, A. Ceau, and D. Mary. "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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Östling, Johan. "High Accuracy Speed and Angular Position Detection by Dual Sensor." Thesis, Uppsala universitet, Fasta tillståndets fysik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-365726.

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For many decades there has been a need in many industries to measure speed and position of ferrous gears. This is commonly done by converting passing gear teeth from trigger wheels to electrical impulses to calculate speed and angular position. By using Hall effect sensors or Giant Magnetoresistance sensors (GMR), a zero speed detection of gear teeth is possible while at the same time be cheap to produce and durable for harsh environments. A specially designed trigger-wheel (cogwheel created for measurements) with gear teeth in a specific pattern, exact position can be detected by using a dual sensor, even when no earlier information is available. The new design of trigger-wheel also makes this new method more accurate and universal compared to previous solutions. This thesis demonstrates and argues for the advantages of using a dual sensor for speed and angular position detection on gear wheels. Were one sensor do quantitative measurements for pattern detection in the teeth arrangements and the other sensor do qualitative measurements for position detection.

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Jackson, Richard Aram Jr. "A Preliminary Study of Pump/Probe Angular Dependence of Zeeman Electromagnetically Induced Transparency." Miami University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=miami1439372287.

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Aljazaeri, Bassim. "Effect of previous angular deformation on flexural fatigue resistance of controlled memory nickel-titanium endodontic instruments." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/48451.

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Objective: To evaluate the effect of torsional stress preloading angle on fatigue resistance of Typhoon (TYP) CM instruments. Methodology: TYP NiTi 25/.04, TYP NiTi 40/.04, TYP CM 25/.04 and TYP CM 40/.04 were rotated until fracture to obtain the mean angular deflection according to the +-ISO 3630-1 standard. Files were pre-torqued to 25, 50, and 75% of their elastic limit and then subjected to cyclic loading in a three-point binding device until fracture. The fatigue life was recorded for each file.The fracture surface of each fragment was examined with a scanning electron microscope. Results: The angle of rotation at fracture of TYP CM was significantly higher than that of TYP instruments (P < 0.05). However, there was no significant difference between size 40 and size 25 in all types of files. The fatigue resistance of TYP CM was significantly higher than that of TYP instruments (P < 0.05). Size 25/.04, TYP and TYP CM files in all three preloading groups had a significantly lower fatigue life than files with no preloading (P < 0.05). Size 40/.04 TYP CM files in the 50% and 75% preloading groups had a significantly lower fatigue life than files in the groups with no preloading (P < 0.05). The fractured files in the preloading groups showed the typical pattern of fatigue failure. Conclusions: TYP CM files have a higher fatigue resistance than conventional TYP NiTi files, irrespective of the amount of previous torsional stress. Fatigue resistance of TYP CM and TYP instruments was reduced after torsional stress preloading. Size 25/.04 file fatigue life was affected by preloading at lower distortion angles than was size 40/.04 fatigue life.
Dentistry, Faculty of
Graduate

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Kennedy-Fisher, Sandra D. "The effect of copper sulphate and host variety on angular leaf spot, Xanthomonas fragariae, of strawberry." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq24862.pdf.

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Wells, Jared Lawrence. "Effect of angular orientation on the hydrodynamic forces acting on a body in a restricted waterway." Thesis, Virginia Tech, 1985. http://hdl.handle.net/10919/41572.

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A slender body theory method developed for a body moving parallel to a wall in shallow water is extended to include angular orientation of the body to the wall. The method satisfies only the zero normal velocity condition on the external boundaries but does not take into account the effect of induced flows on the body itself. A spheroid and a Series 60, block .80 hull were the bodies studied. The side force and yaw moment on each body were determined numerically for varying angular orientation with respect to either a single wall or canal bank. For both cases results for a range of depths and wall separation distances are presented. It is found that the method gives good qualitative side force predictions for a body moving parallel to a wall, but is unable to correctly predict the yaw moment or the side force due to angular orientation. This result dictates the need for a more complex mathematical model to properly represent the flow than the simple model and quasiâ steady method used here.

Master of Science

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Книги з теми "Angular effect"

Evans, Myron W. Pump laser induced net angular momentum: Orbital angular polarisability, induced electric polarization, and the inverse Faraday effect. Ithaca, N.Y: Cornell Theory Center, Cornell University, 1990.

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Andrews, R. M. The stress magnification effect of angular misalignment at butt welds. Cambridge: TWI, 1996.

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C, Brown P., and United States. National Aeronautics and Space Administration., eds. Effect of angular inflow on the vibratory response of a counter-rotating propeller: By J.E. Turnberg, P.C. Brown. [Washington, DC]: NASA, 1985.

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C, Brown P., and United States. National Aeronautics and Space Administration, eds. Effect of angular inflow on the vibratory response of a counter-rotating propeller: By J.E. Turnberg, P.C. Brown. [Washington, DC]: NASA, 1985.

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J, Schroeder David, Collins William Edward 1932-, and United States. Office of Aviation Medicine., eds. Effects of age and low doses of alcohol on compensatory tracking during angular acceleration: Final report. Washington, D.C: Office of Aviation Medicine, 1995.

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Nussenzveig, H. M. Diffraction effects in semiclassical scattering. Cambridge: Cambridge University Press, 1992.

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Juricevic, Igor. The effects of angular separation and binocular viewing on apparent visual angles. Ottawa: National Library of Canada, 1999.

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L, Pan H., and United States. National Aeronautics and Space Administration., eds. Sloshing dynamics modulated fluid angular momentum and moment fluctuations driven by orbital gravity gradient and jitter accelerations in microgravity. [Washington, D.C: National Aeronautics and Space Administration, 1995.

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S, Tripp John, Finley Tom D, and Langley Research Center, eds. Effects of yaw and pitch motion on model attitude measurements. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1995.

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Частини книг з теми "Angular effect"

Gel’berg, A. "Angular Correlation in the Mossbauer Effect." In Proceedings of the Dubna Conference on the Mössbauer Effect 1963, 152–54. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4899-4848-9_15.

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Hamada, Masato. "Phonon Thermal Edelstein Effect." In Theory of Generation and Conversion of Phonon Angular Momentum, 29–48. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4690-1_3.

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Hamada, Masato. "Magnetoelectric Effect for Phonons." In Theory of Generation and Conversion of Phonon Angular Momentum, 49–68. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4690-1_4.

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Xu, Liu-Jun, and Ji-Ping Huang. "Theory for Thermal Wave Nonreciprocity: Angular Momentum Bias." In Transformation Thermotics and Extended Theories, 277–90. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-5908-0_20.

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AbstractIn this chapter, we demonstrate that an angular momentum bias generated by a volume force can also lead to modal splitting in convection-diffusion systems but with different features. We further reveal the thermal Zeeman effect by studying the temperature field propagation in an angular-momentum-biased ring with three ports (one for input and two for output). With an optimal volume force, temperature field propagation is allowed at one output port but isolated at the other, and the rectification coefficient can reach a maximum value of 1. The volume forces corresponding to the rectification coefficient peaks can also be quantitatively predicted by scalar (i.e., temperature) interference. Compared with existing mechanisms for thermal nonreciprocity, an angular momentum bias does not require temperature-dependent and phase-change materials, which has an advantage in wide-temperature-range applicability. These results may provide insights into thermal stabilization and thermal topology. The related mechanism is also universal for other convection-diffusion systems such as mass transport, chemical mixing, and colloid aggregation.

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Radhakrishnan, T. "Effect of Angular Errors in Part Registration for PC Board Assembly." In CAD/CAM Robotics and Factories of the Future ’90, 185–90. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-58214-1_27.

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Scheeres, D. J. "The Effect of C 22 on Orbit Energy and Angular Momentum." In Impact of Modern Dynamics in Astronomy, 339–48. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4527-5_34.

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Radhakrishnan, T. "Effect of Angular Errors in Part Registration for PC Board Assembly." In CAD/CAM Robotics and Factories of the Future ’90, 769–74. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-85838-3_97.

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Basudhar, Prabir Kumar, Indra P. Acharya, and Anubhav. "Strain Rate Effect on Shear Strength of Rounded and Angular Sand." In Lecture Notes in Civil Engineering, 183–94. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6086-6_15.

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Sklenička, Vàclav, J. Dvořák, M. Kvapilova, Milan Svoboda, Petr Král, Ivan Saxl, and Zenji Horita. "Effect of Equal-Channel Angular Pressing (ECAP) on Creep in Aluminium Alloys." In THERMEC 2006, 2904–9. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-428-6.2904.

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Yoshino, H., and K. Murata. "Versatile Method to Estimate Dimensionality of Q1D Fermi Surface by Third Angular Effect." In The Physics of Organic Superconductors and Conductors, 433–56. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-76672-8_14.

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Тези доповідей конференцій з теми "Angular effect"

Kawase, Kodai, Takahiko Sato, Shoma Kudo, Gen Horiuchi, and Akinori Nagano. "Effect of contralateral cane use on whole-body angular momentum in the frontal plane during walking *." In 2025 IEEE/SICE International Symposium on System Integration (SII), 753–56. IEEE, 2025. https://doi.org/10.1109/sii59315.2025.10871047.

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Zheng, Haohan, Liangyu Deng, Honghui He, and Hui Ma. "Effect of hematoxylin and eosin staining on tissue linear birefringence imaging: a case study." In Polarized Light and Optical Angular Momentum for Biomedical Diagnostics 2024, edited by Jessica C. Ramella-Roman, Hui Ma, I. Alex Vitkin, Daniel S. Elson, and Tatiana Novikova. SPIE, 2024. http://dx.doi.org/10.1117/12.3000847.

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Zhang, Yaqi, and Gerald J. Diebold. "Measurement of angular dependence of emissivity through photothermal effect." In 3D Image Acquisition and Display: Technology, Perception and Applications. Washington, D.C.: OSA, 2018. http://dx.doi.org/10.1364/3d.2018.jtu4a.5.

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Lee, Yun Yao, Ruh-Hua Wu, and S. T. Xu. "Applications of linear Hall-effect sensors on angular measurement." In Control (MSC). IEEE, 2011. http://dx.doi.org/10.1109/cca.2011.6044465.

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Fu, Shaowei. "Effect of small angular subtenses on color difference threshold." In SPIE's International Symposium on Optical Engineering and Photonics in Aerospace Sensing, edited by Friedrich O. Huck and Richard D. Juday. SPIE, 1994. http://dx.doi.org/10.1117/12.179292.

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Iannucci, Leanne, Matthew B. Riak, and Spencer P. Lake. "The effect of extracellular matrix properties on polarized light-based analysis of collagen fiber alignment in soft tissues." In Polarized Light and Optical Angular Momentum for Biomedical Diagnostics 2022, edited by Jessica C. Ramella-Roman, Hui Ma, I. Alex Vitkin, Daniel S. Elson, and Tatiana Novikova. SPIE, 2022. http://dx.doi.org/10.1117/12.2614438.

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Paranjape, Atharva A., Shyamal Guchhait, Nirmalya Ghosh, and Athira B.S. "Unravelling the origin of the survival and stronger memory effect of polarized vortex beams in turbid media (Conference Presentation)." In Polarized Light and Optical Angular Momentum for Biomedical Diagnostics 2023, edited by Jessica C. Ramella-Roman, Hui Ma, I. Alex Vitkin, Daniel S. Elson, and Tatiana Novikova. SPIE, 2023. http://dx.doi.org/10.1117/12.2646162.

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Chung, Hyun-Joon, Goobong Chung, and Yujiang Xiang. "Effect of Angular Momentum in ZMP on Human Motion Planning." In ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/detc2017-68151.

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Zero moment point (ZMP) is an important balance criterion for human motion planning. An important term in the ZMP formula is the rate of angular momentum (RAM) of each link. It is not trivial to compute this term compared to other terms in ZMP formula. In this paper, we first propose an efficient recursive Lagrangian method for calculating the rate of angular momentum in ZMP. This new approach gives a direct way to calculate the rate of angular momentum for each link. Secondly, we evaluate the effects of RAM in ZMP on human motion predictions for walking and running. These two motions are characterized as low speed and high speed motions respectively. We conclude that it is critical to include RAM in ZMP to predict accurate high speed motion. It has relatively less effect on low speed motion.

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Ornigotti, Marco, Claudio Conti, and Alexander Szameit. "The Effect of Orbital Angular Momentum on Nondiffracting Optical Pulses." In CLEO: Applications and Technology. Washington, D.C.: OSA, 2015. http://dx.doi.org/10.1364/cleo_at.2015.jtu5a.4.

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Paterson, L., M. P. MacDonald, Jochen Arlt, Wilson Sibbett, Kishan Dholakia, and K. Volke-Sepulveda. "Continuous motion of interference patterns using the angular Doppler effect." In Laser Processing of Advanced Materials and Laser Microtechnologies, edited by Friedrich H. Dausinger, Vitali I. Konov, Vladimir Y. Baranov, and Vladislav Y. Panchenko. SPIE, 2003. http://dx.doi.org/10.1117/12.513850.

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Звіти організацій з теми "Angular effect"

Smoot, George F. Cosmic Background Radiation Study Sunyaev-Zel'dovich Effect and Small Angular Scale Anisotropy. Fort Belvoir, VA: Defense Technical Information Center, March 1986. http://dx.doi.org/10.21236/ada224782.

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Ali, Usman, Mamoru Kikumoto, Matteo Ciantia, and Ying Cui. Direct observation of particle kinematics in biaxial shearing test. University of Dundee, December 2021. http://dx.doi.org/10.20933/100001233.

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Biaxial shearing tests on dual-sized, 2d particle assemblies are conducted at several confining pressures. The effect of particle angularity, an important mesoscale shape descriptor, is investigated at the macro and micro levels. Macroscopically, it is observed that assemblies composed of angular particles exhibit higher strengths and dilations. The difference observed in bulk behavior due to particle angularity can be explained reasonably by considering particle-level mechanisms. A novel 2D image analysis technique is employed to estimate particle kinematics. Particle rotation results to be a key mechanism strongly influenced by particle shape determining the overall granular behavior. Unlike circular particles, angular ones are more resistant to rotations due to stronger interlocking and consequently exhibit higher strengths.

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Riley, Mark, and Akis Pipidis. The Mechanical Analogue of the "Backbending" Phenomenon in Nuclear-structure Physics. Florida State University, May 2008. http://dx.doi.org/10.33009/fsu_physics-backbending.

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This short pedagogical movie illustrates an effect in nuclear physics called backbending which was first observed in the study of the rotational behavior of rapidly rotating rare-earth nuclei in Stockholm, Sweden in 1971. The video contains a mechanical analog utilizing rare-earth magnets and rotating gyroscopes on a turntable along with some historic spectra and papers associated with this landmark discovery together with its explanation in terms of the Coriolis induced uncoupling and rotational alignment of a specific pair of particles occupying high-j intruder orbitals. Thus backbending represents a crossing in energy of the groundstate, or vacuum, rotational band by another band which has two unpaired high-j nucleons (two quasi-particles) with their individual angular momenta aligned with the rotation axis of the rapidly rotating nucleus. Backbending was a major surprise which pushed the field of nuclear structure physics forward but which is now sufficiently well understood that it can be used as a precision spectroscopic tool providing useful insight for example, into nuclear pairing correlations and changes in the latter due to blocking effects and quasi-particle seniority, nuclear deformation, the excited configurations of particular rotational structures and the placement of proton and neutron intruder orbitals at the Fermi surface.

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Dejus, R. Effect of emittance and rms phase error on angular flux density and pinhole flux-a simulation study of two undulators at 10.5 mm gap including very high harmonics. Office of Scientific and Technical Information (OSTI), March 2004. http://dx.doi.org/10.2172/822558.

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Rahman, Shahedur, Rodrigo Salgado, Monica Prezzi, and Peter J. Becker. Improvement of Stiffness and Strength of Backfill Soils Through Optimization of Compaction Procedures and Specifications. Purdue University, 2020. http://dx.doi.org/10.5703/1288284317134.

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Vibration compaction is the most effective way of compacting coarse-grained materials. The effects of vibration frequency and amplitude on the compaction density of different backfill materials commonly used by INDOT (No. 4 natural sand, No. 24 stone sand, and No. 5, No. 8, No. 43 aggregates) were studied in this research. The test materials were characterized based on the particle sizes and morphology parameters using digital image analysis technique. Small-scale laboratory compaction tests were carried out with variable frequency and amplitude of vibrations using vibratory hammer and vibratory table. The results show an increase in density with the increase in amplitude and frequency of vibration. However, the increase in density with the increase in amplitude of vibration is more pronounced for the coarse aggregates than for the sands. A comparison of the maximum dry densities of different test materials shows that the dry densities obtained after compaction using the vibratory hammer are greater than those obtained after compaction using the vibratory table when both tools were used at the highest amplitude and frequency of vibration available. Large-scale vibratory roller compaction tests were performed in the field for No. 30 backfill soil to observe the effect of vibration frequency and number of passes on the compaction density. Accelerometer sensors were attached to the roller drum (Caterpillar, model CS56B) to measure the frequency of vibration for the two different vibration settings available to the roller. For this roller and soil tested, the results show that the higher vibration setting is more effective. Direct shear tests and direct interface shear tests were performed to study the impact of particle characteristics of the coarse-grained backfill materials on interface shear resistance. The more angular the particles, the greater the shear resistance measured in the direct shear tests. A unique relationship was found between the normalized surface roughness and the ratio of critical-state interface friction angle between sand-gravel mixture with steel to the internal critical-state friction angle of the sand-gravel mixture.

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Sanabria, Johana, Ginna Quiroga, Cindy Mejía, Erika Grijalba, and Martha Goméz. Effect of abiotic factors on viability and characterization of Metarhizium rileyi Nm017. Corporación colombiana de investigación agropecuaria - AGROSAVIA, 2019. http://dx.doi.org/10.21930/agrosavia.poster.2019.18.

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The species Chloridea virescens and Helicoverpa zea (Lepidoptera: Noctuidae) are declared agricultural pests with a high economic impact worldwide (Angulo et al. 2008). They are widely distributed on the American continent, and agrochemical are the most common method to control, which can cause environmental, social, economic and public impacts. A strain of Metarhizium rileyi Nm017 [AGROSAVIA - Orinoquia area (Col.)], demonstrated an e cacy of 75.8% on C. virescens, and 92.5% on H. zea on laboratory conditions. Mass production and virulence of Metarhizium sp. are susceptible to stress conditions such as temperature, UVB radiation and pH, a ecting conidial vigor, germination, and sporulation (Rangel et al. 2008, Oliveira et al. 2016). Likewise, the culture medium can a ect the infection processes measured through hydrophobicity and enzymatic activities (Ortiz 2013). The identi cation of these parameters allows selecting the most favorable conditions for its production and the challenges that must be assumed in downstream processes.

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Perez-Callejo, G. Spectroscopic characterisation of the effects of plasma geometry on the angular distribution of X-Ray emission in HED plasmas. Office of Scientific and Technical Information (OSTI), June 2020. http://dx.doi.org/10.2172/1634290.

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