Log in

Relevant bibliographies by topics / Metric rotation

Contents

Journal articles
Dissertations / Theses
Books
Book chapters
Conference papers
Reports

Academic literature on the topic 'Metric rotation'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Metric rotation.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Metric rotation"

1

Zakir, Zahid. "Effects of gravity around charged and rotating collapsars in metrics with independent parameters." QUANTUM AND GRAVITATIONAL PHYSICS 3 (February 14, 2022): 1–17. http://dx.doi.org/10.9751/qgph.3-018.7715.

Full text

Abstract:

The external metric of the ball with a charge on the surface, as a solution to the Einstein-Maxwell equations, depends on three independent parameters - the surface radius, the charge and the gravitational radius of the ball, which is equal to the gravitational radius of a neutral non-rotating matter. The electric field exists only outside the ball, and its energy contributes to the metric with the same sign as the matter. Therefore, an increase in charge enhances gravity, increasing the magnitude of its effects (redshifts, orbital radii and shadows, etc.). The metric outside the spherical col

APA, Harvard, Vancouver, ISO, and other styles

2

MALLICK, RITAM, ABHIJIT BHATTACHARYYA, SANJAY K. GHOSH, and SIBAJI RAHA. "GENERAL RELATIVISTIC EFFECT ON THE ENERGY DEPOSITION RATE FOR NEUTRINO PAIR ANNIHILATION ABOVE THE EQUATORIAL PLANE ALONG THE SYMMETRY AXIS NEAR A ROTATING NEUTRON STAR." International Journal of Modern Physics E 22, no. 02 (2013): 1350008. http://dx.doi.org/10.1142/s0218301313500080.

Full text

Abstract:

The estimate of the energy deposition rate (EDR) for neutrino pair annihilation has been carried out. The EDR for the neutrinos coming from the equatorial plane of a rotating neutron star is calculated along the rotation axis using the Cook–Shapiro–Teukolsky metric. The neutrino trajectories and hence the neutrinos emitted from the disk are affected by the redshift due to disk rotation and gravitation. The EDR is very sensitive to the value of the temperature and its variation along the disk. The rotation of the star has a negative effect on the EDR; it decreases with increase in rotational ve

APA, Harvard, Vancouver, ISO, and other styles

3

Comber, Alexis, Khanh Chi, Man Q. Huy, et al. "Distance metric choice can both reduce and induce collinearity in geographically weighted regression." Environment and Planning B: Urban Analytics and City Science 47, no. 3 (2018): 489–507. http://dx.doi.org/10.1177/2399808318784017.

Full text

Abstract:

This paper explores the impact of different distance metrics on collinearity in local regression models such as geographically weighted regression. Using a case study of house price data collected in Hà Nội, Vietnam, and by fully varying both power and rotation parameters to create different Minkowski distances, the analysis shows that local collinearity can be both negatively and positively affected by distance metric choice. The Minkowski distance that maximised collinearity in a geographically weighted regression was approximate to a Manhattan distance with (power = 0.70) with a rotation of

APA, Harvard, Vancouver, ISO, and other styles

4

AWAD, ADEL M. "THE FIRST LAW, COUNTERTERMS AND KERR-AdS5 BLACK HOLES." International Journal of Modern Physics D 18, no. 03 (2009): 405–18. http://dx.doi.org/10.1142/s0218271809014522.

Full text

Abstract:

We apply the counterterm subtraction technique to calculate the action and other quantities of the Kerr-AdS black hole in five dimensions using two boundary metrics: the Einstein universe and the rotating Einstein universe with an arbitrary angular velocity. In both cases, the resulting thermodynamic quantities satisfy the first law of thermodynamics. We point out that the reason for the violation of the first law in previous calculations was that the rotating Einstein universe, used as a boundary metric, was rotating with an angular velocity that depended on the black hole rotation parameter.

APA, Harvard, Vancouver, ISO, and other styles

5

Zakir, Zahid. "Physically consistent metrics with independent parameters instead of standard metrics with unphysical consequences. 2. Rotating sources." QUANTUM AND GRAVITATIONAL PHYSICS 3 (January 24, 2022): 1–16. http://dx.doi.org/10.9751/qgph.3-017.7694.

Full text

Abstract:

The Kerr metric, the external metric for a rotating body, contains the equatorial gravitational radius implicitly depending on the specific angular momentum (SAM). Ignoring this dependence due to the formal mathematical approach without understanding the physical aspects led to absurd unphysical consequences in the black hole theory, in particular, that an increase in the rotational energy at increasing SAM weakens gravity, decreasing the gravitational radius at the pole and the effects of gravity (redshifts, mean radii of orbits and shadows). This shortcoming of the Kerr metric is improved in

APA, Harvard, Vancouver, ISO, and other styles

6

Zakir, Zahid. "Physically consistent metrics with independent parameters instead of standard metrics with unphysical consequences. 2. Rotating sources." QUANTUM AND GRAVITATIONAL PHYSICS 3 (January 24, 2022): 1–16. http://dx.doi.org/10.9751/qgph.2-016.7694.

Full text

Abstract:

The Kerr metric, the external metric for a rotating body, contains the equatorial gravitational radius implicitly depending on the specific angular momentum (SAM). Ignoring this dependence due to the formal mathematical approach without understanding the physical aspects led to absurd unphysical consequences in the black hole theory, in particular, that an increase in the rotational energy at increasing SAM weakens gravity, decreasing the gravitational radius at the pole and the effects of gravity (redshifts, mean radii of orbits and shadows). This shortcoming of the Kerr metric is improved in

APA, Harvard, Vancouver, ISO, and other styles

7

ZHANG, C. M. "GENERAL DESCRIPTION OF DIRAC SPIN–ROTATION EFFECT WITH RELATIVISTIC FACTOR." International Journal of Modern Physics D 16, no. 04 (2007): 737–44. http://dx.doi.org/10.1142/s0218271807009875.

Full text

Abstract:

The Mashhoon rotation–spin coupling is studied by means of the parallelism description of general relativity. The relativistic rotational tetrad is exploited which results in the Minkowski metric, and the torsion axial-vector and Dirac spin coupling will give the Mashhoon rotation–spin term. For the high speed rotating cases, the tangent velocity constructed by the angular velocity Ω multiplying the distance r may exceed over the speed of light c, i.e. Ωr ≥ c, which will make the relativistic factor γ infinity or imaginary. In order to avoid this "meaningless" difficulty occurring in γ factor,

APA, Harvard, Vancouver, ISO, and other styles

8

Hui, C. Y., and K. S. Cheng. "Anisotropic Heat Transfer Inside Rotating Neutron Stars." Symposium - International Astronomical Union 218 (2004): 39–40. http://dx.doi.org/10.1017/s0074180900180520.

Full text

Abstract:

We have developed the anisotropic heat transport equation for rotating neutron stars. With a simple model of neutron star, we also model the propagation of heat pulses resulting from transient energy releases inside the star. Even in the slow rotation limit, the results with rotational effects involved could differ significantly from those obtained with a spherically symmetric metric in the timescale of the thermal afterglow.

APA, Harvard, Vancouver, ISO, and other styles

9

Li, Yanlin, Piscoran Laurian-Ioan, Lamia Saeed Alqahtani, Ali H. Alkhaldi, and Akram Ali. "Zermelo's navigation problem for some special surfaces of rotation." AIMS Mathematics 8, no. 7 (2023): 16278–90. http://dx.doi.org/10.3934/math.2023833.

Full text

Abstract:

<abstract><p>In this paper, we investigate Zermelo's navigation problem for some special rotation surfaces. In this respect, we find some Randers-type metrics for these rotation surfaces. Furthermore, we get the H-distortion for the metric induced by surfaces.</p></abstract>

APA, Harvard, Vancouver, ISO, and other styles

10

Baghdad, Abdulhameed Abdullah AL-BADANI, and KILIC Abidin. "AN INVESTIGATION OF MOLECULAR SPECTROSCOPY WITH GEOMETRIC ALGEBRA." Journal of Natural Science and Technologies 1, no. 1 (2022): 7–18. https://doi.org/10.5281/zenodo.7241363.

Full text

Abstract:

In this study Geometric Algebra was used to create a general and practical method for obtaining the operators of the kinetic energy of the molecular vibration-rotation of polyatomic molecules. On the other hand, these polyatomic molecules' precise intrinsic kinetic energy operators include a metric tensor. The elements of this metric tensor were expressed as the mass- weighted sum of measuring vector inner product vectors compatible with the molecule's nucleus. Whereas, the vibrational and rotational measuring vectors that appear in the metric tensor for any geometrically defined coord

APA, Harvard, Vancouver, ISO, and other styles

More sources

Dissertations / Theses on the topic "Metric rotation"

1

Almergren, Joachim. "Energy and Rotation in Relativistic Astrophysics." Doctoral thesis, SISSA, 2003. http://hdl.handle.net/20.500.11767/4245.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Борисенко, Олексій Андрійович, Алексей Андреевич Борисенко, Oleksii Andriiovych Borysenko та Е. В. Татарко. "О строении трехмерных поверхностей с метрикой вращения". Thesis, Сумский государственный университет, 2014. http://essuir.sumdu.edu.ua/handle/123456789/39365.

Full text

Abstract:

Многомерная риманова метрика называется метрикой вращения. При этом поверхность, несущая метрику вращения, не обязательно является поверхностью вращения. Тогда возникает вопрос о том, какие условия нужны для того, чтобы подмногообразия с метрикой вращения были многомерными поверхностями вращения.

APA, Harvard, Vancouver, ISO, and other styles

3

SALIS, FILIPPO. "The geometry of rotation invariant Kähler metrics." Doctoral thesis, Università degli Studi di Cagliari, 2018. http://hdl.handle.net/11584/255956.

Full text

Abstract:

The present thesis consists of three results related to the geometry of rotation invariant Kähler metrics. In the first one, we prove that a 3-codimensional Kähler-Einstein submanifold of the complex projective space with rotation invariant metric is forced to be the product of complex projective spaces. In the second one, we prove that the only stable-projectively induced Ricci-flat Kähler metrics are flat. Finally, we prove as third result that given a Ricciflat radial Kähler metric defined on a complex surface such that the third coefficient of its Tian-Yau-Zelditch expansion vanishes, the

APA, Harvard, Vancouver, ISO, and other styles

4

Marinchek, Dean A. "Manufacturing Facility Layout: A Methodology Incorporating Rotated Aisles into Layout Design." Ohio University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1417537173.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Di, Gennaro Sofia. "Quantum rotating black holes and extra dimensions." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/19851/.

Full text

Abstract:

We employ the formalism of the Horizon Quantum Mechanics to describe the gravitational radius of compact sources by means of an operator and derive a Horizon Wave Function which will allow us to estimate the probability of formation of black holes in scattering processes. If the Planck scale is kept at its standard value, however, it will be impossible to test that regime with any foreseeable technology. We then review how the introduction of extra dimensions can potentially lower the Planck scale down to the TeV range in an attempt to solve the hierarchy problem. In this context, we proceed b

APA, Harvard, Vancouver, ISO, and other styles

6

Triestino, Michele. "La dynamique des difféomorphismes du cercle selon le point de vue de la mesure." Phd thesis, Ecole normale supérieure de lyon - ENS LYON, 2014. http://tel.archives-ouvertes.fr/tel-01065468.

Full text

Abstract:

Les travaux de ma thèse s'articulent en trois parties distinctes.Dans la première partie j'étudie les mesures de Malliavin-Shavguldize sur les difféomorphismes du cercle et de l'intervalle. Il s'agit de mesures de type " Haar " pour ces groupes de dimension infinie : elles furent introduites il a une vingtaine d'années pour permettre une étude de leur théorie des représentations. Un premier chapitre est dédié à recueillir les résultats présents dans la littérature et et les représenter dans une forme plus étendue, avec un regard particulier sur les propriétés de quasi-invariance de ces mesures

APA, Harvard, Vancouver, ISO, and other styles

7

Maçaneiro, Marcela. "Processo de degradação dos componentes utilizados em distribuidores rotativos instalados nas estações de tratamento de esgoto." Universidade Tecnológica Federal do Paraná, 2017. http://repositorio.utfpr.edu.br/jspui/handle/1/2450.

Full text

Abstract:

Uma Estação de Tratamento de Esgoto (ETE) é composta por equipamentos que são severamente afetados pelos fenômenos de corrosão e de degradação dos materiais. Isto se deve ao ambiente no qual estão inseridos, onde há vasta quantidade de contaminantes presentes nas águas residuárias. O entendimento destes processos de deterioração dos materiais, que compõem os equipamentos, e relacioná-los com águas residuárias representam um avanço tecnológico na área. Neste sentido, o presente trabalho buscou estudar os materiais empregados em um equipamento mecânico e utilizados nas ETEs, o distribuidor rotat

APA, Harvard, Vancouver, ISO, and other styles

8

PROFIR, MARIA MANUELA. "Sugli spazi omogenei di dimensione tre SO(2) - isotropi." Doctoral thesis, Università degli Studi di Cagliari, 2008. http://hdl.handle.net/11584/266004.

Full text

Abstract:

In this thesis we studied some problems from the theory of the submanifolds of the three-dimensional Riemannian manifolds. Our intention is to evaluate which properties of the submanifolds depend by the dimension of the group of isometries. We considered a two-parameter family of three-dimensional Riemannian manifolds (M, ds2 ℓ,m), endowed with the Cartan - Vranceanu metrics. These metrics can be found in the classification of 3-dimensional homogeneous metrics given by L. Bianchi. Their geometric interest lies in the following fact: the family of metrics includes all 3-dimensional homo

APA, Harvard, Vancouver, ISO, and other styles

9

Massoni, Paulo Rogério. "Determinação da concentração de elementos químicos potencialmente tóxicos em aerossóis presentes no interior de uma pequena indústria de fundição de metais, utilizando amostrador temporal e a técnica de fluorescência de raios X." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/64/64134/tde-30092009-144607/.

Full text

Abstract:

Este trabalho foi desenvolvido objetivando a determinação e a avaliação dos perfis temporais da concentração de alguns elementos químicos potencialmente tóxicos presentes no material particulado em suspensão (MPS) no interior de uma pequena indústria de fundição de metais bronze, ferro e alumínio que, em concentrações elevadas, podem acarretar sérios riscos à saúde do trabalhador. Para isso foi utilizado um amostrador temporal de MPS, que coleta amostras de aerossóis em intervalo de tempo pré-programados, separando-os por tamanho: (a) fração fina ou respirável (partículas com diâmetro aerodi

APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Metric rotation"

1

1941-, Hag Kari, and Broch Ole Jacob, eds. The ubiquitous quasidisk. American Mathematical Society, 2012.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

2

Rajeev, S. G. Curvature and Instability. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198805021.003.0011.

Full text

Abstract:

The Euler equations of a rigid body can be understood as the geodesic equations for a metric on the rotation group. A rapid introduction to the Riemannian geometry of Lie groups (following Milnor) is given and illuminated by the example of the rigid body. The deep generalization of Arnold to the case of an incompressible fluid is then explained. The Euler equations of an ideal incompressible fluid are shown to be geodesics of the group of volume preserving diffeomorphisms. The curvature of this metric is calculated. Contrary to the case of the rigid body, the curvature is negative, implying th

APA, Harvard, Vancouver, ISO, and other styles

3

Deruelle, Nathalie, and Jean-Philippe Uzan. The Kerr solution. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198786399.003.0048.

Full text

Abstract:

This chapter covers the Kerr metric, which is an exact solution of the Einstein vacuum equations. The Kerr metric provides a good approximation of the spacetime near each of the many rotating black holes in the observable universe. This chapter shows that the Einstein equations are nonlinear. However, there exists a class of metrics which linearize them. It demonstrates the Kerr–Schild metrics, before arriving at the Kerr solution in the Kerr–Schild metrics. Since the Kerr solution is stationary and axially symmetric, this chapter shows that the geodesic equation possesses two first integrals.

APA, Harvard, Vancouver, ISO, and other styles

4

Saha, Prasenjit, and Paul A. Taylor. Schwarzschild’s Spacetime. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198816461.003.0003.

Full text

Abstract:

The concept of a metric is motivated and introduced, along with the introduction of relativistic quantities of spacetime, proper time, and Einstein’s field equations. Geodesics are cast in basic form as a Hamiltonian dynamical problem, which readers are guided towards exploring numerically themselves. The specific case of the Schwarzschild metric is presented, which is applicable to space around non-rotating black holes, and orbital motion around such objects is contrasted with that of Newtonian systems. Some well-known formulas for black hole phenomena are derived, such as those for light def

APA, Harvard, Vancouver, ISO, and other styles

5

Deruelle, Nathalie, and Jean-Philippe Uzan. The physics of black holes I. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198786399.003.0049.

Full text

Abstract:

This chapter describes two physical processes related to the Schwarzschild and Kerr solutions which can be induced by the gravitational field of a black hole. The first is the Penrose process, which suggests that rotating black holes are large energy reservoirs. Next is superradiance, which is the first step in the study of black-hole stability. The study of the stability of black holes involves the linearization of the Einstein equations about the Schwarzschild or Kerr solution. As this chapter shows, the equations of motion for perturbations of the metric are wave equations. The problem then

APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Metric rotation"

1

Li, Junning, Yonggang Shi, and Arthur W. Toga. "Diffusion of Fiber Orientation Distribution Functions with a Rotation-Induced Riemannian Metric." In Medical Image Computing and Computer-Assisted Intervention – MICCAI 2014. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-10443-0_32.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Gamazo, J., J. M. Cuadra, and M. Rincón. "An Efficient and Rotation Invariant Fourier-Based Metric for Assessing the Quality of Images Created by Generative Models." In Bio-inspired Systems and Applications: from Robotics to Ambient Intelligence. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-06527-9_41.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Kaczor, Wieslawa, and Małgorzata Koter-Mórgowska. "Rotative Mappings and Mappings with Constant Displacement." In Handbook of Metric Fixed Point Theory. Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-017-1748-9_11.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Raychaudhuri, A. K., S. Banerji, and A. Banerjee. "The Kerr Metric or the Rotating Black Hole." In Astronomy and Astrophysics Library. Springer New York, 1992. http://dx.doi.org/10.1007/978-1-4612-2754-0_7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Szwabowicz, M. L. "Compatibility of Rotations with the Change-of-Metric Measures in a Deformation of a Material Surface." In Lecture Notes in Engineering. Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82838-6_22.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Navarro, Danielle, and David Foxcroft. "15. Factor Analysis." In Learning Statistics with jamovi. Open Book Publishers, 2025. https://doi.org/10.11647/obp.0333.15.

Full text

Abstract:

This chapter provides an in-depth exploration of Factor Analysis (FA), a statistical approach used to examine the relationships among multiple variables to uncover underlying latent factors. Latent factors represent unobservable constructs inferred from observed data, making FA an essential tool for researchers in psychology and behavioural sciences. The chapter begins with Exploratory Factor Analysis (EFA), a technique for identifying hidden patterns in data by examining how observed variables co-vary. The discussion covers critical steps such as assumption checks, factor extraction, rotation

APA, Harvard, Vancouver, ISO, and other styles

7

Ball, Adrian, John Zigman, Arman Melkumyan, Anna Chlingaryan, Katherine Silversides, and Raymond Leung. "Addressing Application Challenges with Large-Scale Geological Boundary Modelling." In Springer Proceedings in Earth and Environmental Sciences. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-19845-8_17.

Full text

Abstract:

AbstractFor banded iron formation-hosted deposits accurate boundary modelling is critical to ore-grade estimation. Key to estimation fidelity is the accurate separation of the different domains within the ore body, requiring modelling of the boundaries between domains. This yields both theoretical and application challenges. We present a series of solutions for application challenges that arise when modelling large-scale boundaries employing a composition of Gaussian Process models on exploration and production hole data. We demonstrate these in the banded iron formation-hosted iron ore deposi

APA, Harvard, Vancouver, ISO, and other styles

8

Mekhitarian, Vahram. "Spinor Fields." In Quantum Field Theory [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.105569.

Full text

Abstract:

A spinor representation of the generalized energy-momentum density 4-vector is proposed, and examples of such representations for various particles and fields are given. This representation corresponds to the classical representation of the particle’s own rotation, which is described by the diagonal matrix of the moment of inertia. The concept of self-angular rotation of a particle is defined as a spatial characteristic of the field, at each point of which there is a local vortex rotation with an angular velocity Ω – a spinor field. The matrix representation of the vortex rotation Ω (spinor) a

APA, Harvard, Vancouver, ISO, and other styles

9

Devi, L. Nirmala, and A. Nageswar Rao. "Hybrid Feature Vector-Assisted Action Representation for Human Action Recognition Using Support Vector Machines." In Methodologies and Applications of Computational Statistics for Machine Intelligence. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-7701-1.ch001.

Full text

Abstract:

Human action recognition (HAR) is one of most significant research topics, and it has attracted the concentration of many researchers. Automatic HAR system is applied in several fields like visual surveillance, data retrieval, healthcare, etc. Based on this inspiration, in this chapter, the authors propose a new HAR model that considers an image as input and analyses and exposes the action present in it. Under the analysis phase, they implement two different feature extraction methods with the help of rotation invariant Gabor filter and edge adaptive wavelet filter. For every action image, a n

APA, Harvard, Vancouver, ISO, and other styles

10

"Shape Recognition Methods Used for Complex Polygonal Shape Recognition." In Advances in Multimedia and Interactive Technologies. IGI Global, 2014. http://dx.doi.org/10.4018/978-1-4666-4896-8.ch008.

Full text

Abstract:

Two new algorithms, optimal and sub-optimal solution algorithm, for shape recognition using geometric calculations are proposed. They are mode-based, which means that shape from the data base which is considered as a model is compared with another shape extracted from the sequence of images, such as, for example, a moving object. The proposed algorithms are efficient and tolerate severe noise. They have the ability to identify the close match between the noisy polygon that has a significantly greater number of sides and the assigned polygon. They work for convex and concave polygons equally we

APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Metric rotation"

1

Castro, Márcio Moraes de, Jorge Lima de Siqueira, Luciano Xavier Magalhães, and Carlos Luis Ribeiro. "DESSULFURAÇÃO EM PANELA DE GUSA VIA PROCESSO DE INJEÇÃO COM LANÇA ROTATIVA." In 35º Seminário de Fusão, Refino e Solidificação dos Metais e 5º Seminário de Fundição. Editora Blucher, 2004. https://doi.org/10.5151/2594-5300-2004-9269-0009.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Smart, Nicholas R., Andrew P. Rance, and Andrew M. Pritchard. "Laboratory Investigation of Naphthenic Acid Corrosion under Flowing Conditions." In CORROSION 2002. NACE International, 2002. https://doi.org/10.5006/c2002-02484.

Full text

Abstract:

Abstract Processing crude oils with high naphthenic acid contents can cause rapid corrosion of carbon steels in the temperature range 250-400°C, under high flow rate conditions. The corrosion rate is not readily predictable on the basis of chemical analysis of the crudes, although it is well known that the relative naphthenic acid and sulfur concentrations are important parameters. In predicting corrosivity, it is therefore important to measure the corrosion behaviour under controlled flowing conditions in environments that simulate as closely as possible those expected in an oil refinery. A r

APA, Harvard, Vancouver, ISO, and other styles

3

Billington, S. A., Y. Li, T. R. Kurfess, S. Y. Liang, and S. Danyluk. "Roller Bearing Defect Detection With Multiple Sensors." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-1268.

Full text

Abstract:

Abstract Three levels of bearing outer race damage were tested over varying rotational speed and radial load. An acoustic emission sensor (AE) and accelerometer were used to record acoustic emission and vibration levels, respectively. The high frequency resonance technique (HFRT) and Adaptive Line Enhancer (ALE) were employed to process vibration signals. The primary metric of vibration level in this research is the Root-mean-square (RMS). The HFRT and ALE signal processing combination is effective in isolating deterministic defect frequencies. Finally a multi-layer perceptron neural network u

APA, Harvard, Vancouver, ISO, and other styles

4

Xu, Hui, Lihua Gu, and Binbin Tu. "Gait authentication based on partial cyclic rotation metric." In 2016 Chinese Control and Decision Conference (CCDC). IEEE, 2016. http://dx.doi.org/10.1109/ccdc.2016.7531155.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Xu, Mengdi, and Gregory S. Chirikjian. "Recovering a Rotation Matrix From Three Direction Cosines." In ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/detc2018-85825.

Full text

Abstract:

In this paper, we propose a new parameterization method to represent rotation matrices using the angles ϕ→ recovered from the three direction cosines that lie on the diagonal. The map from the possible configuration space of the new variable ϕ→ to the solid ball model in axis-angle coordinates is constructed. We also introduce a bi-invariant metric and two left-invariant metrics for measuring the distance in configuration space which could be the foundation for path planning in ϕ→ space. We further analyze the Jacobian matrix and singularities to better understand the manipulability.

APA, Harvard, Vancouver, ISO, and other styles

6

Wilson, Kyle, and David Bindel. "On the Distribution of Minima in Intrinsic-Metric Rotation Averaging." In 2020 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR). IEEE, 2020. http://dx.doi.org/10.1109/cvpr42600.2020.00607.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Yankov, Dragomir, Eamonn Keogh, Li Wei, Xiaopeng Xi, and Wendy Hodges. "Fast Best-Match Shape Searching in Rotation Invariant Metric Spaces." In Proceedings of the 2007 SIAM International Conference on Data Mining. Society for Industrial and Applied Mathematics, 2007. http://dx.doi.org/10.1137/1.9781611972771.70.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Chung, Hyunseung, Woo-Jeoung Nam, and Seong-Whan Lee. "Rotation Invariant Aerial Image Retrieval with Group Convolutional Metric Learning." In 2020 25th International Conference on Pattern Recognition (ICPR). IEEE, 2021. http://dx.doi.org/10.1109/icpr48806.2021.9412803.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Rieser, Hans-Martin, Björn M. Schäfer, and Frederic P. Schuller. "Area metric gravity: Confrontation with observations of galaxy rotation curves." In Proceedings of the MG15 Meeting on General Relativity. WORLD SCIENTIFIC, 2022. http://dx.doi.org/10.1142/9789811258251_0090.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Tameh, Tahereh Ahmadi, Mohamad Sawan, and Raman Kashyap. "Self-Referencing Ratio-Metric Optical Rotation Sensor for Avionic Application." In Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides. OSA, 2014. http://dx.doi.org/10.1364/bgpp.2014.jm5a.66.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Metric rotation"

1

Lynch, James F. A Higgs Universe and the flow of time. Woods Hole Oceanographic Institution, 2024. http://dx.doi.org/10.1575/1912/69338.

Full text

Abstract:

Theoretically considering velocities greater than c implies considering an observer’s past and extends the overall analysis into the complex plane. By using a series of rotations by i in the complex plane, one can create a four-lobed structure of “instants of time,” which together with considering matter and antimatter in the lobes and the +/- sense of the rotation, leads to a Higgs field representation of space and time. A 10x10 metric is developed for this system as well as a generalized spacetime interval. It is also shown that the Friedmann Equations are consistent with our “Higgs Cosmolog

APA, Harvard, Vancouver, ISO, and other styles

2

Lynch, James F. A digital Higgs universe and the flow of time. Woods Hole Oceanographic Institution, 2024. http://dx.doi.org/10.1575/1912/70830.

Full text

Abstract:

Theoretically considering velocities greater than c implies considering an observer’s past and extends the overall analysis into the complex plane. By using a series of rotations by i in the complex plane at the Planck scale, one can create a four-lobed structure of “instants of time,” which together with considering matter and antimatter in the lobes and the +/- sense of the rotation, leads to a Higgs field representation of spacetime. A metric is developed for this system as well as a generalized spacetime interval. It is shown that the Friedmann Equations are consistent with our “Higgs Cosm

APA, Harvard, Vancouver, ISO, and other styles

3

Griggs, Christopher, Scott Waisner, Jacob Lalley, et al. Employing ultrafiltration and reverse osmosis (UF/RO) for treatment of source-separated graywater : ER-201636. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48371.

Full text

Abstract:

In field operating environments, military units must ensure access to a critical water supply to maintain mission readiness. Increasing complexity of logistics and costs to transport water and climate change are driving the development and demonstration of water treatment units. The treatment unit described uses ultrafiltration (UF) and reverse osmosis (RO) mem-brane technologies with a disinfection step to treat low-strength graywater from shower facilities at Camp Shelby Joint Force Training Center in Hattiesburg, Mississippi. Samples were collected from human shower sampling events. During

APA, Harvard, Vancouver, ISO, and other styles

4

Weissinger, Rebecca. Trends in water quality at Bryce Canyon National Park, water years 2006–2021. Edited by Alice Wondrak Biel. National Park Service, 2022. http://dx.doi.org/10.36967/2294946.

Full text

Abstract:

The National Park Service collects water-quality samples on a rotating basis at three fixed water-quality stations in Bryce Canyon National Park (NP): Sheep Creek, Yellow Creek, and Mossy Cave Spring. Data collection began at Sheep Creek and Yellow Creek in November 2005 and at Mossy Cave in July 2008. Data on in-situ parameters, fecal-coliform samples, major ions, and nutrients are collected monthly, while trace elements are sampled quarterly. This report analyzes data from the beginning of the period of record for each station through water year 2021 to test for trends over time. Concentrati

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!