Academic literature on the topic 'Structural Regularity'

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 'Structural Regularity.'

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 "Structural Regularity"

1

PILLAY, ANAND. "DOMINATION AND REGULARITY." Bulletin of Symbolic Logic 26, no. 2 (June 2020): 103–17. http://dx.doi.org/10.1017/bsl.2020.40.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Pauly, Mark, Niloy J. Mitra, Johannes Wallner, Helmut Pottmann, and Leonidas J. Guibas. "Discovering structural regularity in 3D geometry." ACM Transactions on Graphics 27, no. 3 (August 2008): 1–11. http://dx.doi.org/10.1145/1360612.1360642.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Kitagawa, S. "Porous coordination polymers with structural regularity and flexibility." Acta Crystallographica Section A Foundations of Crystallography 62, a1 (August 6, 2006): s70. http://dx.doi.org/10.1107/s010876730609859x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Kumar, R., Ying-Jui Chen, S. Oraintara, and K. Amaratunga. "Lapped unimodular transforms: lifting factorization and structural regularity." IEEE Transactions on Signal Processing 54, no. 3 (March 2006): 921–31. http://dx.doi.org/10.1109/tsp.2005.861741.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Kuri, Taishi, Namiko Honda, Yushi Oishi, and Tisato Kajiyama. "Structural Regularity-Waveguide Property Relationships of Langmuir-Blodgett Films." Chemistry Letters 23, no. 12 (December 1994): 2223–26. http://dx.doi.org/10.1246/cl.1994.2223.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Cleary, Anne M., Alison L. Morris, and Moses M. Langley. "Recognition memory for novel stimuli: The structural regularity hypothesis." Journal of Experimental Psychology: Learning, Memory, and Cognition 33, no. 2 (2007): 379–93. http://dx.doi.org/10.1037/0278-7393.33.2.379.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Azer, Lilian, and Weiwei Zhang. "The Effects of Structural Regularity on Working Memory Representations." Journal of Vision 18, no. 10 (September 1, 2018): 683. http://dx.doi.org/10.1167/18.10.683.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Fernández, Claudio, Carlos Lizama, and Verónica Poblete. "Maximal Regularity for Flexible Structural Systems in Lebesgue Spaces." Mathematical Problems in Engineering 2010 (2010): 1–15. http://dx.doi.org/10.1155/2010/196956.

Full text
Abstract:
We study abstract equations of the formλu′′′(t)+u′′(t)=c2Au(t)+c2μAu′(t)+f(t),0<λ<μwhich is motivated by the study of vibrations of flexible structures possessing internal material damping. We introduce the notion of(α;β;γ)-regularized families, which is a particular case of(a;k)-regularized families, and characterize maximal regularity inLp-spaces based on the technique of Fourier multipliers. Finally, an application with the Dirichlet-Laplacian in a bounded smooth domain is given.
APA, Harvard, Vancouver, ISO, and other styles
9

Chen, Yi, Xiaolong Wang, and Buzhou Tang. "Structural regularity exploration in multidimensional networks via Bayesian inference." Neural Computing and Applications 29, no. 9 (June 8, 2017): 413–24. http://dx.doi.org/10.1007/s00521-017-3041-5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Chen, Li Fang, Jesus López, Jin An Wang, Luis E. Noreña-Franco, Guo Xian Yu, Fa Hai Cao, Yue Qing Song, and Xiao Long Zhou. "Synthesis of Si-Based Mesoporous Materials with Different Structural Regularity." Advanced Materials Research 132 (August 2010): 38–44. http://dx.doi.org/10.4028/www.scientific.net/amr.132.38.

Full text
Abstract:
Two types of mesoporous Si-MCM-41 materials were synthesized via a cationic surfactant template method using different Si-precursors. The materials obtained were characterized by FTIR, XRD, BET, TEM and 29Si MAS-NMR techniques. When fumed silica was used as Si precursor, a Si-MCM-41-I solid with wormhole-like pore topologies was obtained. However, when tetraethylorthosilicate (TEOS) was used as Si precursor, a mesoporous Si-MCM-41-II solid with hexagonal arranges and a long-range ordered structure could be obtained. These two kinds of mesoporous materials had a uniform pore size distribution with an average pore diameter within 2.3-2.8 nm. Rather weak Lewis acid sites were formed on both the Si-MCM-41 samples prepared by the two methods.
APA, Harvard, Vancouver, ISO, and other styles

Dissertations / Theses on the topic "Structural Regularity"

1

Sadashiva, Vinod Kota. "Quantifying structural irregularity effects for simple seismic design." Thesis, University of Canterbury. Civil and Natural Resources Engineering, 2010. http://hdl.handle.net/10092/5309.

Full text
Abstract:
This study was initiated to quantify the effect of different degrees of irregularity on structures designed for earthquake using simplified analysis. The types of irregularity considered were: (a) Vertical Irregularity • Mass • Stiffness -Strength (b) Horizontal (Plan) Irregularity • Diaphragm Flexibility Simple models were used to allow many analyses to be conducted in a relatively short time. For vertical irregularity studies, simple shear-type structures were designed according to the New Zealand design Standard, NZS1170.5, firstly as regular structures, and then they were redesigned as irregular structures to the same target drift. Both regular and irregular structures were then subjected to a suite of records, and vertical irregularity effects evaluated from the difference in response. For the flexible diaphragm effect study, simple models of structures were developed with: (a) a rigid diaphragm assumption; and (b) a flexible diaphragm assumption. Flexible diaphragm effects were evaluated by conducting time-history analyses and comparing the responses of structures with rigid and flexible diaphragms. A mechanics based approach was developed to quantify flexible diaphragm effects, which was shown to produce consistent results with those from time-history analyses. Relationships between the degree of irregularity and the change in behaviour were developed. This information facilitates designers and plan checkers to rapidly evaluate the likely effect of irregularity on structures. It provides guidance as to: (a) when the effect of structural irregularity can be ignored, and (b) the change in demands for different degrees of structural irregularity. The relations developed also provide a rigorous technical basis for future regularity provisions in the NZS1170.5 and other world-wide seismic design codes.
APA, Harvard, Vancouver, ISO, and other styles
2

Millward, Raymond. "A new adaptive multiscale finite element method with applications to high contrast interface problems." Thesis, University of Bath, 2011. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.544505.

Full text
Abstract:
In this thesis we show that the finite element error for the high contrast elliptic interface problem is independent of the contrast in the material coefficient under certain assumptions. The error estimate is proved using a particularly technical proof with construction of a specific function from the finite dimensional space of piecewise linear functions. We review the multiscale finite element method of Chu, Graham and Hou to give clearer insight. We present some generalisations to extend their work on a priori contrast independent local boundary conditions, which are then used to find multiscale basis functions by solving a set of local problems. We make use of their regularity result to prove a new relative error estimate for both the standard finte element method and the multiscale finite element method that is completely coefficient independent. The analytical results we explore in this thesis require a complicated construction. To avoid this we present an adaptive multiscale finite element method as an enhancement to the adaptive local-global method of Durlofsky, Efendiev and Ginting. We show numerically that this adaptive method converges optimally as if the coefficient were smooth even in the presence of singularities as well as in the case of a realisation of a random field. The novel application of this thesis is where the adaptive multiscale finite element method has been applied to the linear elasticity problem arising from the structural optimisation process in mechanical engineering. We show that a much smoother sensitivity profile is achieved along the edges of a structure with the adaptive method and no additional heuristic smoothing techniques are needed. We finally show that the new adaptive method can be efficiently implemented in parallel and the processing time scales well as the number of processors increases. The biggest advantage of the multiscale method is that the basis functions can be repeatedly used for additional problems with the same high contrast material coefficient.
APA, Harvard, Vancouver, ISO, and other styles
3

Aroskar, Ashwini. "Limits, Regularity and Removal for Relational and Weighted Structures." Research Showcase @ CMU, 2012. http://repository.cmu.edu/dissertations/144.

Full text
Abstract:
The Szemeredi Regularity Lemma states that any graph can be well-approximated by graphs that are almost random. A well-known application of the Szemeredi Regularity Lemma is in the proof of the Removal Lemma for graphs. There are several extensions of the Regularity Lemma to hypergraphs. Our work builds on known results for k-uniform hypergraphs including the existence of limits, a Regularity Lemma and a Removal Lemma. Our main tool here is a theory of measures on ultraproduct spaces which establishes a correspondence between ultraproduct spaces and Euclidean spaces. We show the existence of a limit object for sequences of relational structures and as a special case, we retrieve the known limits for graphs and digraphs. We also state and prove a Regularity Lemma, a Removal Lemma and a Strong Removal Lemma for relational structures. The Strong Removal Lemma deals with the removal of a family of relational structures and has applications in property testing. We have also extended the above correspondence to measurable functions on the ultraproduct and Euclidean spaces. This enabled us to find limit objects for sequences of weighted structures and these can be seen as generalizations of the limits we have obtained for relational structures. We also formulate and prove Regularity and Removal Lemmas for weighted structures.
APA, Harvard, Vancouver, ISO, and other styles
4

Baumgartner, Michael. "Complex causal structures : extensions of a regularity theory of causation /." Bern : Selbstverlag, 2006. http://www.ub.unibe.ch/content/bibliotheken_sammlungen/sondersammlungen/dissen_bestellformular/index_ger.html.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Boo, Woong Jae. "Characterization of thin film properties of melamine based dendrimer nanoparticles." Thesis, Texas A&M University, 2003. http://hdl.handle.net/1969.1/1611.

Full text
Abstract:
With the given information that dendrimers have precisely controlled their sizes and spherical structures in the molecular level, the aim of this study is to show that dendrimer particles can become ordered into a self-assembled regular structure due to the nature of their regular sizes and shapes. For this project, melamine based generation 3 dendrimer was used for solution cast of thin films from the dendrimer-chloroform solutions with different casting conditions, i.e. various solution concentrations, casting temperatures, and substrates. As a result of these experiments, unique phenomena of highly ordered uniform 2-D contraction separations were observed during the solvent evaporation from the dendrimer films. The cast films from the concentration of 0.8 wt% and higher exhibit regular 2-D separation contraction patterns and make well-developed regularly arrayed structures due to the interaction between the contraction stresses and adhesion strength between films and substrates. From the DSC tests, both powder and cast film samples of a dendrimer show similar melting behaviors with different areas under the melting peaks. The results of these tests show that dendrimers, when they are in a descent environment that provides dendrimers with molecular mobility due to surface ionic bonding strength, can make a structural order and regularity in their macroscopic structures.
APA, Harvard, Vancouver, ISO, and other styles
6

Behnejad, S. Alireza. "Geometrical data for lattice spatial structures : regularity, historical background and education." Thesis, University of Surrey, 2018. http://epubs.surrey.ac.uk/849532/.

Full text
Abstract:
Dealing with geometrical information has been an important aspect of the knowledge required for construction of a structure. In particular, data generation techniques appropriate for complex geometries are crucial for the design and construction of spatial structures. This may be referred to as ‘Configuration Processing’ and has been the centre of attention for some researchers in the past few decades. A main focus of this thesis is the ‘regularity’ in structural forms and the present research shows that the ‘metric properties’ of structural forms, suggested by the Author, are fundamental for the study of regularity. Metric properties refer to the geometrical information necessary for design, and in particular, construction of lattice spatial structures. To elaborate, the research addresses the following questions: • What are the metric properties for a lattice structure and how can these be evaluated? • What is the definition of regularity for lattice structures and how can this be quantified? • How could the regularity of a lattice structure be improved? The Author is an architect and structural engineer who has been involved in the design and construction of lattice spatial structures for 20 years. The experience of the actual construction over the years has shown that there are advantages in keeping the number of different types of structural components small. In another front, the study of regularity of forms for lattice structures may involve the ‘visual aspects’, ‘arrangements of elements’ or ‘structural components’. The first two aspects are subjective matters and the latter one, that is the focus of the present work, is an objective matter. The present research shows that the metric properties of structural forms are fundamental for the study of component regularity. There are considerable benefits in terms of the construction of structures which have a high degree of regular components. The benefits include savings in time and cost of construction, as well as a reduction in probability of having a wrong arrangement during assembly. In this sense, the present work could be considered as a research of fundamental importance which provides a basis for the knowledge in this field. Most of the examples in the Thesis are single layer lattice structures with straight elements and further research on other types of lattice structures is recommended. This thesis consists of six chapters, the first of which entitled ‘Introduction’ provides background information about the research and discusses the research aims. Chapter 2 on the ‘Literature Review’ concerns the few available publications relevant to the research. The third chapter entitled ‘Metric Properties’ defines a number of geometrical parameters which are being used to generate the geometrical information. Also, the mathematics involved for the necessary calculations are discussed. This chapter is a major contribution of the thesis and to the available knowledge in terms of introduction a set of well defined geometrical parameters for design and construction of lattice spatial structures. Chapter 4 is dedicated to discussion of different aspects of ‘Regularity’ of lattice structures. To begin with, the idea of regularity is elaborated upon and then the concept of ‘regularity indicators’ are discussed. These indicators help to quantify regularity of components. Here again, this chapter presents a novel idea in the field of lattice spatial structures. Another major contribution of this thesis to the general knowledge is Chapter 5 entitled ‘Sphere Packing’. This is a particular technique for configuration processing developed by the Author to improve the member length regularity of lattice structures. An example of the application of the technique for configuration processing of spherical domes is also discussed in details. Moreover, a comparison on the variation of the member lengths of different dome configurations is discussed which shows that around 50% of the members of a dome created by sphere packing technique are with the same length. This proportion of equal length members is considerably higher than that of the other dome configurations (10%-33%). Finally, Chapter 6 provides the conclusions and some important suggestions for the continuation of the research. In addition to the main body of this thesis, copy of the relevant publications by the Author are provided as Annexes in the following three categories: i. Geometrical data generation for lattice spatial structures is the core of the Annexes A to E, then, ii. Annexes F and G are focusing on the education of spatial structures, and finally, iii. Historical background of spatial structures is discussed in the Annexes H and I.
APA, Harvard, Vancouver, ISO, and other styles
7

Goulet-Langlois, Gabriel. "Exploring regularity and structure in travel behavior using Smart Card data." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/99546.

Full text
Abstract:
Thesis: S.M. in Transportation, Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2015.
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 161-166).
As the economic opportunities fostered by large cities become more diverse, the travel patterns of public transport users become more heterogeneous. From personalized customer information, to improved travel demand models, understanding these heterogeneous travel patterns is useful for a number of applications relevant to public transport agencies. This thesis explores how smart card data can be used to analyze and compare the structure of individual travel patterns observed over several weeks. Specifically, the way in which multiple journeys and activities are ordered and combined into repeated patterns, both by the same individual over time and across individuals is evaluated from the journey sequence of each user. The research is structured around three objectives. First, we introduce a representation of individual travel patterns and develop a measure of travel sequence regularity. The mobility of each individual is modeled as a stochastic process with memory, of which each new realization represents an activity or journey. Entropy rate, a measure of randomness in the stochastic process, is used to quantify repetition in the order of journeys and activities. This analysis reveals that the order of events is an important component of regularity not explicitly captured in previous literature. Second, we develop an approach to identify clusters of travel patterns with similar structure considered with respect to public transport usage and activity patterns. Finally, we present an exploratory evaluation of the associations between the identified clusters and socio-demographic characteristics by linking smart card data to an annual travel diary survey. These three objectives are considered in the context of a practical application using the transactions of a sample of approximately 100,000 users collected between February 10th and March 10th 2015 in London.
by Gabriel Goulet-Langlois.
S.M. in Transportation
APA, Harvard, Vancouver, ISO, and other styles
8

Daghighi, Abtin. "Regularity and uniqueness-related properties of solutions with respect to locally integrable structures." Doctoral thesis, Mittuniversitetet, Avdelningen för ämnesdidaktik och matematik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-21641.

Full text
Abstract:
We prove that a smooth generic embedded CR submanifold of C^n obeys the maximum principle for continuous CR functions if and only if it is weakly 1-concave. The proof of the maximum principle in the original manuscript has later been generalized to embedded weakly q-concave CR submanifolds of certain complex manifolds. We give a generalization of a known result regarding automatic smoothness of solutions to the homogeneous problem for the tangential CR vector fields given local holomorphic extension. This generalization ensures that a given locally integrable structure is hypocomplex at the origin if and only if it does not allow solutions near the origin which cannot be represented by a smooth function near the origin. We give a sufficient condition under which it holds true that if a smooth CR function f on a smooth generic embedded CR submanifold, M, of C^n, vanishes to infinite order along a C^infty-smooth curve  \gamma in M, then f vanishes on an M-neighborhood of \gamma. We prove a local maximum principle for certain locally integrable structures.

Funding  by FMB, based at Uppsala University.

APA, Harvard, Vancouver, ISO, and other styles
9

Franzoni, Lorenzo. "Mechanical behavior of regularly spaced Cross Laminated Timber panels : Modeling and experimental validation in ambient and fire conditions." Thesis, Paris Est, 2016. http://www.theses.fr/2016PESC1113/document.

Full text
Abstract:
Les panneaux en bois lamellé croisé (en anglais CLT - Cross Laminated Timber) sont des éléments de structure composés de couches en bois collées entre eleese et empilées de façon croisée. Chaque couche est composée de planches en bois juxtaposées et généralement non collées sur leur chants. Dans cette thèse, nous étudions l'influence sur le comportement mécanique des espacements entre planches des panneaux avec une approche par modélisation et expérimentation. Les panneaux CLT standard sont considérés comme des panneaux avec des espacements de très faible dimension par opposition aux panneaux avec espacements importants que nous appelons panneaux innovants. Nous modélisons dans un premier temps le comportement en flexion de panneaux standard à l'aide d'un modèle de couche homogène équivalente basée sur des hypothèses simplifiées de la mécanique d'une couche avec chants collés ou non collés. Nous observons un bon accord entre les résultats de notre modélisation et des résultats expérimentaux issus de la littérature. Des études paramétriques sont ensuite réalisés portant sur certaines propriétés des panneaux.Nous avons ensuite réalisé des essais de flexion 4-points sur des panneaux CLT standard et innovants pour quantifier l'influence des espacements sur la réponse mécanique des panneaux. Il se trouve que l'influence des effets de cisaillement transverse sur le comportement élastique et à la rupture augmente avec l'augmentation des vides dans le panneau.Afin de prendre correctement en compte les effets du cisaillement, les CLT espacés sont modélisés comme des plaques épaisses périodiques à l'aide d'un modèle de plaque d'ordre supérieur. Ce modèle a été appliqué à la géométrie des panneaux CLT espacés avec un schéma d'homogénéisation périodique. Des méthodes simplifiées existantes ont également été comparées avec les résultats des essais et le modèle de plaque. De plus, des résultats d'essais de cisaillement dans le plan des panneaux CLT standard issus de la littérature ont été comparés avec nos résultats. La raideur de flexion des CLT espacés peut être prédite avec des méthodes simples existantes, alors que seule la modélisation que nous proposons permet de prédire le comportement en cisaillement transverse et dans le plan. Finalement, des formules analytiques ont été obtenues pour prédire le comportement élastique des CLT espacés. Ces formules donnent une bonne approximation u comportement des CLT espacés et peuvent être utilisées dans le cadre d'une démarche pratique de dimensionnement.Enfin, une étude concernant l'analyse du comportement au feu des panneaux CLT standard est présentée. La comparaison entre des résultats d'essais au feu et une modélisations avancée et simplifiée a permis de proposer une possible amélioration de la méthode de dimensionnement au feu standard
Cross Laminated Timber (CLT, or crosslam) panels are engineered timber products composed of layers made of wooden lamellas placed side by side, glued on their upperand lower faces and stacked crosswise. In the present thesis, the influence of lateral spaces between lamellas of each layer on the panel’s mechanical response is investigated with modeling and tests. Both configurations of standard panels having short spaces and innovative CLT panels with large spaces are analyzed.As a first approach, the bending behavior of standard crosslam was modeled by means of an equivalent-layer model based on simplified hypotheses on mechanical properties of laterally glued or unglued layers. The good agreement of the predicted behavior with an experiment of the literature finally allowed an investigation on several CLT properties by means of parameter studies.Then, 4-points bending tests on standard and innovative CLT floors were performed in order to quantify the influence of periodic spaces on the panels' mechanical response. It appears that the influence of transverse shear effects on the elastic and failure behavior of spaced CLT increases with the increasing spaces between boards.In order to take into account transverse shear effects, spaced CLT have been modeled as periodic thick plates by means of a higher-order plate theory for laminated plates. This model has been applied to the geometry of spaced CLT with a periodic homogenization scheme. Existing simplified methods for spaced crosslam were compared as well with refined modeling and test results. Moreover, available in-plane shear tests of the literature have been compared to the modeling results. It appears that the bending behavior of spaced CLT can be predicted with simplified existing approaches, while only the more refined modeling can predict the in-plane and transverse shear behavior. Then, closed-form solutions for predicting spaced CLT elastic behavior were derived in order to encourage the application of spaced CLT panels in modern timber construction.One further study within this thesis concerns the analysis of fire-exposed standard CLT floors. The comparison between test results and both advanced and simplified modeling led to a suggestion for a possible improvement the standard fire design model
APA, Harvard, Vancouver, ISO, and other styles
10

Burtscher, Annegret Yvonne. "Analytic and geometric aspects of spacetimes of low regularity." Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066345.

Full text
Abstract:
La théorie de la relativité générale décrit l'effet de la gravitation en termes de géométrie des espaces-temps. La courbure des variétés lorentzienne est liée à l'énergie et l'évolution de la matière (ou du vide) par les équations d'Einstein, un système d'équations différentielles non-linéaires. Dans les années 1950, l'existence locale de solutions des équations d'Einstein a été établie. Motivé par ce résultat, j'étudie l'évolution ainsi que la régularité des espaces-temps. Il est démontré que certaines estimations d'énergie peuvent être contrôlées par des limites unilatérales portant uniquement sur la géométrie. Les estimations de l'énergie Bel-Robinson, par exemple, sont indispensables pour le calcul des critères d'effondrement pour les solutions des équations d'Einstein. Comme un important espace-temps, des modèles astrophysiques avec des sources de fluides parfaits sont considérés. Une théorie d'existence de solutions à symétrie sphérique pour l'équations Einstein-Euler est présenté et on identifie une classe de données initiales non-piégées qui conduit à la formation dynamique de surfaces piégées. Pour permettre des ondes de choc, des solutions à variation bornée sont considérées. Dans ce cadre de là et dans d'autres domaines de la relativité générale, il est crucial de comprendre si et comment la régularité des métriques influe sur la géométrie des espaces-temps. Je propose aussi quelques résultats généraux sur les métriques riemanniennes continues et sur l'algèbre des fonctions généralisées. Cette thèse montre donc que l'espace-temps de faible régularité présentent un large éventail de phénomènes intéressants au cours de leur évolution
The general theory of relativity describes the effect of gravitation in terms of the geometry of spacetimes. The curvature of Lorentzian manifolds is related to the energy and momentum of matter (or vacuum) by the Einstein equations, a system of nonlinear partial differential equations. In the 1950s the initial value formulation and local existence of solutions to the Einstein equations were established. As of yet the global structure of spacetimes is much less understood. Motivated by this I investigate the evolution as well as the regularity of spacetimes. I show that certain energy estimates can be controlled by one-sided bounds on the geometry only. Estimates of the Bel-Robinson energy, for example, play a crucial role in the derivation of breakdown criteria for solutions of the vacuum Einstein equations. As an important astrophysical model spacetimes with perfect fluid sources are considered. An existence theory for spherically symmetric solutions to the Einstein-Euler equations is presented, and, above all, I identify for the first time a class of untrapped initial data that leads to the dynamical formation of trapped surfaces. To allow for shock waves, solutions are regarded to be of bounded variation. The distributional framework is essential here and in other areas of general relativity, and it is crucial to understand if and how the regularity of metrics influences the geometry of spacetimes. I account for this by deriving some general results on continuous Riemannian metrics and algebras of generalized functions. This thesis thus illustrates that spacetimes of low regularity exhibit a wide range of interesting phenomena during their evolution
APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Structural Regularity"

1

Kaveh, Ali. Optimal Analysis of Structures by Concepts of Symmetry and Regularity. Vienna: Springer Vienna, 2013.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Kim, Sang-hyun, and Thomas Koberda. Structure and Regularity of Group Actions on One-Manifolds. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-89006-3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Kaveh, Ali. Optimal Analysis of Structures by Concepts of Symmetry and Regularity. Vienna: Springer Vienna, 2013. http://dx.doi.org/10.1007/978-3-7091-1565-7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Kaveh, A. Optimal Analysis of Structures by Concepts of Symmetry and Regularity. Springer Wien, 2015.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Kaveh, Ali. Optimal Analysis of Structures by Concepts of Symmetry and Regularity. Springer, 2013.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Kaveh, Ali. Optimal Analysis of Structures by Concepts of Symmetry and Regularity. Springer, 2013.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Long, Megan Kaes. Hearing Homophony. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780190851903.001.0001.

Full text
Abstract:
This book examines a repertoire of homophonic vernacular partsongs composed around the turn of the seventeenth century, and considers how these partsongs exploit rhythm, meter, phrase structure, and form to craft harmonic trajectories. Giovanni Giacomo Gastoldi, Thomas Morley, Hans Leo Hassler, and their contemporaries engineered a particular kind of centricity that is distinctively tonal: they strategically deployed dominant harmonies at regular periodicities and in combination with poetic, phrase structural, and formal cues, thereby creating expectation for tonic harmonies. Homophony provided an ideal venue for these experiments: spurred by an increasing demand for comprehensible texts, composers of partsongs developed rigid text-setting procedures that promoted both metrical regularity and consistent phrase rhythm. This rhythmic consistency had a ripple effect: it encouraged composers to design symmetrical phrase structures and to build comprehensible, repetitive, and predictable formal structures. Thus, homophonic partsongs create and exploit trajectories from dominants to tonics on multiple scales, from cadence to sub-phrase to phrase to form. Ultimately, this book argues for a model of tonality—and of tonality’s history—that centers not pitch, but rhythm and meter. Metrically oriented harmonic trajectories encourage tonal expectation. And we can locate these trajectories in a variety of repertoires, including those that we traditionally understand as “modal.”
APA, Harvard, Vancouver, ISO, and other styles
8

Kim, Sang-Hyun, and Thomas Koberda. Structure and Regularity of Group Actions on One-Manifolds. Springer International Publishing AG, 2021.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Kim, Sang-Hyun, and Thomas Koberda. Structure and Regularity of Group Actions on One-Manifolds. Springer International Publishing AG, 2022.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Woodward, James. Causation in Science. Edited by Paul Humphreys. Oxford University Press, 2016. http://dx.doi.org/10.1093/oxfordhb/9780199368815.013.8.

Full text
Abstract:
This article discusses some philosophical theories of causation and their application to several areas of science. Topics addressed include regularity, counterfactual, and causal process theories of causation; the causal interpretation of structural equation models and directed graphs; independence assumptions in causal reasoning; and the role of causal concepts in physics. In connection with this last topic, this article focuses on the relationship between causal asymmetries, the time-reversal invariance of most fundamental physical laws, and the significance of differences among varieties of differential equations (e.g., hyperbolic versus nonhyperbolic) in causal interpretation. It concludes with some remarks about “grounding” special science causal generalizations in physics.
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Structural Regularity"

1

Chen, Yi, Xiaolong Wang, Buzhou Tang, Junzhao Bu, Qingcai Chen, and Xin Xiang. "Structural Regularity Exploration in Multidimensional Networks." In Neural Information Processing, 532–40. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-26555-1_60.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Laur, P. A., F. Masseglia, and P. Poncelet. "Schema Mining: Finding Structural Regularity among Semistructured Data." In Principles of Data Mining and Knowledge Discovery, 498–503. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/3-540-45372-5_57.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Kaveh, A. "Canonical Forms Applied to Structural Mechanics." In Optimal Analysis of Structures by Concepts of Symmetry and Regularity, 153–263. Vienna: Springer Vienna, 2013. http://dx.doi.org/10.1007/978-3-7091-1565-7_7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Kaveh, A. "Group Theory and Applications in Structural Mechanics." In Optimal Analysis of Structures by Concepts of Symmetry and Regularity, 401–32. Vienna: Springer Vienna, 2013. http://dx.doi.org/10.1007/978-3-7091-1565-7_11.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Lopes, M., and J. de Brito. "Discussion of EC8 criteria for structural regularity in plan." In Seismic Design Practice into the Next Century, 451–57. London: Routledge, 2022. http://dx.doi.org/10.1201/9780203740026-62.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Lopes, M., and J. de Brito. "Discussion of EC8 criteria for structural regularity in plan." In Seismic Design Practice into the Next Century, 451–57. London: Routledge, 2022. http://dx.doi.org/10.1201/9780203740026-62.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Manoukas, Grigorios E., and Asimina Athanatopoulou. "The Slenderness of Buildings in Plan as a Structural Regularity Criterion." In Seismic Behaviour and Design of Irregular and Complex Civil Structures IV, 103–13. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-83221-6_9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Friz, Peter K., and Martin Hairer. "Introduction to Regularity Structures." In Universitext, 191–210. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-08332-2_13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Friz, Peter K., and Martin Hairer. "Introduction to regularity structures." In Universitext, 243–62. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-41556-3_13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Jiang, Yu, and Peiheng Long. "Parameter Sensitivity Analysis of Long Span PC Continuous Beam Bridge with Corrugated Steel Webs." In Lecture Notes in Civil Engineering, 298–305. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-1260-3_26.

Full text
Abstract:
AbstractIn order to explore the regularity of alignment and stress variation of long-span corrugated steel web (CSW) continuous beam bridge during cantilever casting construction was taken as the engineering background. Based on numerical simulation, the sensitivity of parameters of alignment and stress of the main beam is carried out on cast-in-place section weight, modulus of elasticity and temperature gradient. The results show that the obvious influence of cast-in-situ section weight and temperature gradient on the alignment and stress is the key control parameters, while modulus of elasticity is the secondary control parameters. Therefore, it is necessary to monitor concrete dense and environmental temperature change in real time during construction, closure at a suitable temperature. Correct construction errors in time, ensure structural safety and smooth alignment.
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Structural Regularity"

1

Pauly, Mark, Niloy J. Mitra, Johannes Wallner, Helmut Pottmann, and Leonidas J. Guibas. "Discovering structural regularity in 3D geometry." In ACM SIGGRAPH 2008 papers. New York, New York, USA: ACM Press, 2008. http://dx.doi.org/10.1145/1399504.1360642.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Weiwei Li, Xin Zheng, and Jie Chen. "Discovering structural regularity in facade image." In 2010 IEEE International Conference on Systems, Man and Cybernetics - SMC. IEEE, 2010. http://dx.doi.org/10.1109/icsmc.2010.5641686.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Sotiriou, Christos P., Nikolaos Sketopoulos, Ankita Nayak, and Paul Penzes. "Extraction of Structural Regularity for Random Logic Netlists." In 2019 Panhellenic Conference on Electronics & Telecommunications (PACET). IEEE, 2019. http://dx.doi.org/10.1109/pacet48583.2019.8956275.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Li, Haoang, Yazhou Xing, Ji Zhao, Jean-Charles Bazin, Zhe Liu, and Yun-Hui Liu. "Leveraging Structural Regularity of Atlanta World for Monocular SLAM." In 2019 International Conference on Robotics and Automation (ICRA). IEEE, 2019. http://dx.doi.org/10.1109/icra.2019.8793716.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Kuiyu, Chen, and Deng Guiling. "The Influence Regularity of Structural Parameters of Fluid Jetting Dispensing." In High Density Design Packaging and Microsystem Integration, 2007 International Symposium on. IEEE, 2007. http://dx.doi.org/10.1109/hdp.2007.4283610.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Li, Haoang, Jian Yao, Jean-Charles Bazin, Xiaohu Lu, Yazhou Xing, and Kang Liu. "A Monocular SLAM System Leveraging Structural Regularity in Manhattan World." In 2018 IEEE International Conference on Robotics and Automation (ICRA). IEEE, 2018. http://dx.doi.org/10.1109/icra.2018.8463165.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Schwarzer, Heiko, and Stephan Teiwes. "Detection and classification of structural defects on textured surfaces." In Optics in Computing. Washington, D.C.: Optica Publishing Group, 1997. http://dx.doi.org/10.1364/oc.1997.jwa.5.

Full text
Abstract:
Automated product inspection is a highly important issue in industrial manufacturing. A typical problem is the examination of structured surfaces of fabricated items in order to identify defects. Usually, one has to deal with ”endless” materials transported at high speeds, such as breadths of cloth, carpet, plastic foil, or the like. These materials possess a surface texture that is characterized by a certain global regularity but also by slight local variations of indeterministic nature. Fabrication errors can be identified as structures that violate the global regularity. An example for a common cloth texture carrying a typical fabrication error is depicted in the leftmost image of fig. 2. The examination procedure can be divided into the detection and the classification of defects. Whereas the primary goal of the detection is to localize all irregularities, the latter part refers to the distinction of different defect types.
APA, Harvard, Vancouver, ISO, and other styles
8

Che, Fa, Shuanfa Chen, and Qinglei Ma. "Change regularity by FEM for dynamic response of structural layers of asphalt pavement with dynamic load." In 2011 International Conference on Multimedia Technology (ICMT). IEEE, 2011. http://dx.doi.org/10.1109/icmt.2011.6003186.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Urasova, A. A., L. V. Glezman, and E. V. Shcheglov. "Structural aspects of modeling the development of machine-building production in the industry of the region in the context of new industrialization." In IV International Scientific Conference MIP: Engineering-IV-2022: Modernization, Innovations, Progress: Advanced Technologies in Material Science, Mechanical and Automation Engineering. Krasnoyarsk Science and Technology City Hall, 2022. http://dx.doi.org/10.47813/mip.4.2022.4.48-56.

Full text
Abstract:
The article reveals the provisions postulating mandatory accounting and regularity of observations in structural changes in industries, as well as industrial complexes. The developments in this regard are intended to become a new tool for predicting technological dominants in the development of the regions of the Russian Federation. Using individual indicators and indicators of the spatial and sectoral development of industries and complexes in conjunction with the methods of coefficient analysis, the authors tried to build structural models of machine-building production in a particular region, which interpret the trends of technological changes in the conditions of new industrialization. The authors focused on development trends in industrial production, since it is these industries and sectors that become the basis for the use of end-to-end technologies. In this context, the paper postulates the thesis of regular observations and monitoring of structural indicators in the basic sectoral directions of the region's development in order to develop new measures to overcome the technological backwardness of the Russian industry.
APA, Harvard, Vancouver, ISO, and other styles
10

Naess, Arvid, Bernt J. Leira, and Olexandr Batsevych. "Efficient Reliability Analysis of Structural Systems With a High Number of Limit States." In ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/omae2010-21179.

Full text
Abstract:
In principle, the reliability of complicated structural systems can be accurately predicted by standard Monte Carlo simulation methods, but the computational burden may be prohibitive. A new Monte Carlo based method for estimating system reliability that aims at reducing the computational cost is therefore proposed. It exploits the regularity of tail probabilities to set up an approximation procedure for the prediction of the far tail failure probabilities based on the estimates of the failure probabilities obtained by Monte Carlo simulation at more moderate levels. In the paper the usefulness and accuracy of the estimation method is illustrated by application to some particular examples of structures with several thousand potentially critical limit state functions. The effect of varying the correlation of the load components is also investigated.
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Structural Regularity"

1

Glushko, E. Ya, and A. N. Stepanyuk. Pneumatic photonic crystals: properties and application in sensing and metrology. [б. в.], 2018. http://dx.doi.org/10.31812/123456789/2875.

Full text
Abstract:
A pneumatic photonic crystal i.e. a medium containing regularly distributed gas-filled voids divided by elastic walls is proposed as an optical indicator of pressure and temperature. The indicator includes layered elastic platform, optical fibers and switching valves, all enclosed into a chamber. We have investigated theoretically distribution of deformation and pressure inside a pneumatic photonic crystal, its bandgap structure and light reflection changes depending on external pressure and temperature.
APA, Harvard, Vancouver, ISO, and other styles
2

Sela, Shlomo, and Michael McClelland. Desiccation Tolerance in Salmonella and its Implications. United States Department of Agriculture, May 2013. http://dx.doi.org/10.32747/2013.7594389.bard.

Full text
Abstract:
Salmonella enterica is a worldwide food-borne pathogen, which regularly causes large outbreaks of food poisoning. Recent outbreaks linked to consumption of contaminated foods with low water-activity, have raised interest in understanding the factors that control fitness of this pathogen to dry environment. Consequently, the general objective of this study was to extend our knowledge on desiccation tolerance and long-term persistence of Salmonella. We discovered that dehydrated STm entered into a viable-but-nonculturable state, and that addition of chloramphenicol reduced bacterial survival. This finding implied that adaptation to desiccation stress requires de-novo protein synthesis. We also discovered that dried STm cells develop cross-tolerance to multiple stresses that the pathogen might encounter in the agriculture/food environment, such as high or low temperatures, salt, and various disinfectants. These findings have important implications for food safety because they demonstrate the limitations of chemical and physical treatments currently utilized by the food industry to completely inactivate Salmonella. In order to identify genes involved in desiccation stress tolerance, we employed transcriptomic analysis of dehydrated and wet cells and direct screening of knock-out mutant and transposon libraries. Transcriptomic analysis revealed that dehydration induced expression of ninety genes and down-regulated seven. Ribosomal structural genes represented the most abundant functional group with a relatively higher transcription during dehydration. Other large classes of induced functional groups included genes involved in amino acid metabolism, energy production, ion transport, transcription, and stress response. Initial genetic analysis of a number of up-regulated genes was carried out). It was found that mutations in rpoS, yahO, aceA, nifU, rpoE, ddg,fnr and kdpE significantly compromised desiccation tolerance, supporting their role in desiccation stress response.
APA, Harvard, Vancouver, ISO, and other styles
3

Recommendations for Departmental Collections Policies. Smithsonian Research Online, November 2021. http://dx.doi.org/10.5479/10088/111834.

Full text
Abstract:
An aged and heavily corroded horizontal iron rim lock for the left side of a door was examined at the request of Anson (“Tuck”) Hines, Director of the Smithsonian Environmental Research Center (SERC). The lock was reportedly found by a contractor on SERC’s property during renovation, and the iron corrosion is typical of exposure to the elements. It was anticipated that the lock would date from the time of the oldest part of the Sellman/Kirkpatrick-Howat house constructed in 1735 or its Greek Revival enlargement in 1841. Examination of the lock included x-radiography. A recommendation was made to not conduct further conservation treatment, such as removal of iron corrosion, because it would threaten the structural integrity of the object. Instead it was advised that the lock be exhibited in a case with conditioned silica gel and regularly monitored, which should keep it in stable condition.
APA, Harvard, Vancouver, ISO, and other styles
4

Financial Stability Report - September 2015. Banco de la República, August 2021. http://dx.doi.org/10.32468/rept-estab-fin.sem2.eng-2015.

Full text
Abstract:
From this edition, the Financial Stability Report will have fewer pages with some changes in its structure. The purpose of this change is to present the most relevant facts of the financial system and their implications on the financial stability. This allows displaying the analysis more concisely and clearly, as it will focus on describing the evolution of the variables that have the greatest impact on the performance of the financial system, for estimating then the effect of a possible materialization of these risks on the financial health of the institutions. The changing dynamics of the risks faced by the financial system implies that the content of the Report adopts this new structure; therefore, some analyses and series that were regularly included will not necessarily be in each issue. However, the statistical annex that accompanies the publication of the Report will continue to present the series that were traditionally included, regardless of whether or not they are part of the content of the Report. In this way we expect to contribute in a more comprehensive way to the study and analysis of the stability of the Colombian financial system. Executive Summary During the first half of 2015, the main advanced economies showed a slow recovery on their growth, while emerging economies continued with their slowdown trend. Domestic demand in the United States allowed for stabilization on its average growth for the first half of the year, while other developed economies such as the United Kingdom, the euro zone, and Japan showed a more gradual recovery. On the other hand, the Chinese economy exhibited the lowest growth rate in five years, which has resulted in lower global dynamism. This has led to a fall in prices of the main export goods of some Latin American economies, especially oil, whose price has also responded to a larger global supply. The decrease in the terms of trade of the Latin American economies has had an impact on national income, domestic demand, and growth. This scenario has been reflected in increases in sovereign risk spreads, devaluations of stock indices, and depreciation of the exchange rates of most countries in the region. For Colombia, the fall in oil prices has also led to a decline in the terms of trade, resulting in pressure on the dynamics of national income. Additionally, the lower demand for exports helped to widen the current account deficit. This affected the prospects and economic growth of the country during the first half of 2015. This economic context could have an impact on the payment capacity of debtors and on the valuation of investments, affecting the soundness of the financial system. However, the results of the analysis featured in this edition of the Report show that, facing an adverse scenario, the vulnerability of the financial system in terms of solvency and liquidity is low. The analysis of the current situation of credit institutions (CI) shows that growth of the gross loan portfolio remained relatively stable, as well as the loan portfolio quality indicators, except for microcredit, which showed a decrease in these indicators. Regarding liabilities, traditional sources of funding have lost market share versus non-traditional ones (bonds, money market operations and in the interbank market), but still represent more than 70%. Moreover, the solvency indicator remained relatively stable. As for non-banking financial institutions (NBFI), the slowdown observed during the first six months of 2015 in the real annual growth of the assets total, both in the proprietary and third party position, stands out. The analysis of the main debtors of the financial system shows that indebtedness of the private corporate sector has increased in the last year, mostly driven by an increase in the debt balance with domestic and foreign financial institutions. However, the increase in this latter source of funding has been influenced by the depreciation of the Colombian peso vis-à-vis the US dollar since mid-2014. The financial indicators reflected a favorable behavior with respect to the historical average, except for the profitability indicators; although they were below the average, they have shown improvement in the last year. By economic sector, it is noted that the firms focused on farming, mining and transportation activities recorded the highest levels of risk perception by credit institutions, and the largest increases in default levels with respect to those observed in December 2014. Meanwhile, households have shown an increase in the financial burden, mainly due to growth in the consumer loan portfolio, in which the modalities of credit card, payroll deductible loan, revolving and vehicle loan are those that have reported greater increases in risk indicators. On the side of investments that could be affected by the devaluation in the portfolio of credit institutions and non-banking financial institutions (NBFI), the largest share of public debt securities, variable-yield securities and domestic private debt securities is highlighted. The value of these portfolios fell between February and August 2015, driven by the devaluation in the market of these investments throughout the year. Furthermore, the analysis of the liquidity risk indicator (LRI) shows that all intermediaries showed adequate levels and exhibit a stable behavior. Likewise, the fragility analysis of the financial system associated with the increase in the use of non-traditional funding sources does not evidence a greater exposure to liquidity risk. Stress tests assess the impact of the possible joint materialization of credit and market risks, and reveal that neither the aggregate solvency indicator, nor the liquidity risk indicator (LRI) of the system would be below the established legal limits. The entities that result more individually affected have a low share in the total assets of the credit institutions; therefore, a risk to the financial system as a whole is not observed. José Darío Uribe Governor
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!

To the bibliography