Relevant bibliographies by topics / Unified Expressions

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Unified Expressions'

Author: Grafiati
Published: 19 February 2023

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Journal articles on the topic "Unified Expressions"

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Ji, Zhe, You Zheng Wang, and Jian Hua Lu. "MGF-Based Effective Capacity for Generalized Fading Channels." Applied Mechanics and Materials 519-520 (February 2014): 929–33. http://dx.doi.org/10.4028/www.scientific.net/amm.519-520.929.

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In this paper, we study the effective capacity (EC) which was proposed to measure the quality of service (QoS) for fading channels. A unified expression for the effective capacity based on the method of moment generating function (MGF) is proposed. The unified expression applies to various fading channels and is derived for both single antenna and multiple antenna diversity system. The mathematical expression is illustrated with Nakagami-m fading channels and closed form expressions are derived in this case. The simulation results verify the consistence of the closed-form expressions with numerical evaluations.
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HUANG, YONG-CHANG, XI-GUO LEE, and MING-XUE SHAO. "UNIFIED EXPRESSIONS OF ALL INTEGRAL VARIATIONAL PRINCIPLES." Modern Physics Letters A 21, no. 14 (May 10, 2006): 1107–15. http://dx.doi.org/10.1142/s0217732306019232.

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In terms of the quantitative causal principle, this paper obtains a general variational principle, gives unified expressions of the general, Hamilton, Voss, Hölder, Maupertuis–Lagrange variational principles of integral style, the invariant quantities of the general, Voss, Hölder, Maupertuis–Lagrange variational principles are given, finally the Noether conservation charges of the general, Voss, Hölder, Maupertuis–Lagrange variational principles are deduced, and the intrinsic relations among the invariant quantities and the Noether conservation charges of all the integral variational principles are achieved.
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Huang, Y. C. "Unified expressions of all differential variational principles." Mechanics Research Communications 30, no. 6 (November 2003): 567–72. http://dx.doi.org/10.1016/s0093-6413(03)00057-0.

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Szabolcsi, Anna. "Unconditionals and free choice unified." Semantics and Linguistic Theory 29 (December 9, 2019): 320. http://dx.doi.org/10.3765/salt.v29i0.4616.

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Rawlins (2013: 160) observes that both unconditionals and more classical free choice can be meta-characterized using orthogonality, but does not actually unify the two. One reason may be that in English, different expressions serve in these roles. By contrast, in Hungarian, AKÁR expressions serve as NPIs, FCIs, and unconditional adjuncts, but not as interrogatives or free relatives. This paper offers a unified account of the Hungarian data, extending Chierchia 2013 and Dayal 2013. The account produces the same unconditional meanings that Rawlins derives from an interrogative basis. This result highlights the fact that sets of alternatives arise from different morpho-syntactic sources and are utilized by the grammar in different ways, but the results may fully converge.
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Callegaro, Luca. "Unified derivation of Johnson and shot noise expressions." American Journal of Physics 74, no. 5 (May 2006): 438–40. http://dx.doi.org/10.1119/1.2174034.

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McLaurin, Sandra C. "A Unified Way to Teach the Solution of Inequalities." Mathematics Teacher 78, no. 2 (February 1985): 91–95. http://dx.doi.org/10.5951/mt.78.2.0091.

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MANTZAVINOS, DIONYSSIOS, and ATHANASSIOS S. FOKAS. "The unified method for the heat equation: I. non-separable boundary conditions and non-local constraints in one dimension." European Journal of Applied Mathematics 24, no. 6 (July 18, 2013): 857–86. http://dx.doi.org/10.1017/s0956792513000223.

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We use the heat equation as an illustrative example to show that the unified method introduced by one of the authors can be employed for constructing analytical solutions for linear evolution partial differential equations in one spatial dimension involving non-separable boundary conditions as well as non-local constraints. Furthermore, we show that for the particular case in which the boundary conditions become separable, the unified method provides an easier way for constructing the relevant classical spectral representations avoiding the classical spectral analysis approach. We note that the unified method always yields integral expressions which, in contrast to the series or integral expressions obtained by the standard transform methods, are uniformly convergent at the boundary. Thus, even for the cases that the standard transform methods can be implemented, the unified method provides alternative solution expressions which have advantages for both numerical and asymptotic considerations. The former advantage is illustrated by providing the numerical evaluation of typical boundary value problems.
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Li, Ruijie, Yufei Luo, and Anhong Dang. "Unified expressions of ASEP over Málaga (M) turbulence channel." Optics Communications 423 (September 2018): 74–80. http://dx.doi.org/10.1016/j.optcom.2018.04.030.

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Gibbs, Raymond W., and Guy Van Orden. "Are emotional expressions intentional?" Consciousness & Emotion 4, no. 1 (November 4, 2003): 1–16. http://dx.doi.org/10.1075/ce.4.1.02gib.

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This paper discusses the debate over whether emotional expressions are spontaneous or intentional actions. We describe a variety of empirical evidence supporting these two possibilities. But we argue that the spontaneous-intentional distinction fails to explain the psychological dynamics of emotional expressions. We claim that a complex systems perspective on intentions, as self-organized critical states, may yield a unified view of emotional expressions as a consequence of situated action. This account simultaneously acknowledges the embodied status of environment, evolution, culture and mind in theories of emotion.
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Cui, Xuemiao, Jiping Lu, and Yafeng Han. "A Novel Unified Data Modeling Method for Equipment Lifecycle Integrated Logistics Support." Sensors 22, no. 11 (June 3, 2022): 4265. http://dx.doi.org/10.3390/s22114265.

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Integrated logistics support (ILS) is of great significance for maintaining equipment operational capability in the whole lifecycle. Numerous segments and complex product objects exist in the process of equipment ILS, which gives ILS data multi-source, heterogeneous, and multidimensional characteristics. The present ILS data cannot satisfy the demand for efficient utilization. Therefore, the unified modeling of ILS data is extremely urgent and significant. In this paper, a unified data modeling method is proposed to solve the consistent and comprehensive expression problem of ILS data. Firstly, a four-tier unified data modeling framework is constructed based on the analysis of ILS data characteristics. Secondly, the Core unified data model, Domain unified data model, and Instantiated unified data model are built successively. Then, the expressions of ILS data in the three dimensions of time, product, and activity are analyzed. Thirdly, the Lifecycle ILS unified data model is constructed, and the multidimensional information retrieval methods are discussed. Based on these, different systems in the equipment ILS process can share a set of data models and provide ILS designers with relevant data through different views. Finally, the practical ILS data models are constructed based on the developed unified data modeling software prototype, which verifies the feasibility of the proposed method.
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Dissertations / Theses on the topic "Unified Expressions"

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TAVARES, Marcellus Antonius de Castro. "Behavioral java code generation from imperative object constraint language expressions in plataformindependent UML models." Universidade Federal de Pernambuco, 2011. https://repositorio.ufpe.br/handle/123456789/1385.

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Made available in DSpace on 2014-06-12T15:49:38Z (GMT). No. of bitstreams: 1 license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2011
Antonius de Castro Tavares, Marcellus; Pierre Louis Robin, Jacques. Behavioral java code generation from imperative object constraint language expressions in plataformindependent UML models. 2011. Dissertação (Mestrado). Programa de Pós-Graduação em Ciência da Computação, Universidade Federal de Pernambuco, Recife, 2011.
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Haq, Ikram. "Fraud detection for online banking for scalable and distributed data." Thesis, Federation University Australia, 2020. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/171977.

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Online fraud causes billions of dollars in losses for banks. Therefore, online banking fraud detection is an important field of study. However, there are many challenges in conducting research in fraud detection. One of the constraints is due to unavailability of bank datasets for research or the required characteristics of the attributes of the data are not available. Numeric data usually provides better performance for machine learning algorithms. Most transaction data however have categorical, or nominal features as well. Moreover, some platforms such as Apache Spark only recognizes numeric data. So, there is a need to use techniques e.g. One-hot encoding (OHE) to transform categorical features to numerical features, however OHE has challenges including the sparseness of transformed data and that the distinct values of an attribute are not always known in advance. Efficient feature engineering can improve the algorithm’s performance but usually requires detailed domain knowledge to identify correct features. Techniques like Ripple Down Rules (RDR) are suitable for fraud detection because of their low maintenance and incremental learning features. However, high classification accuracy on mixed datasets, especially for scalable data is challenging. Evaluation of RDR on distributed platforms is also challenging as it is not available on these platforms. The thesis proposes the following solutions to these challenges: • We developed a technique Highly Correlated Rule Based Uniformly Distribution (HCRUD) to generate highly correlated rule-based uniformly-distributed synthetic data. • We developed a technique One-hot Encoded Extended Compact (OHE-EC) to transform categorical features to numeric features by compacting sparse-data even if all distinct values are unknown. • We developed a technique Feature Engineering and Compact Unified Expressions (FECUE) to improve model efficiency through feature engineering where the domain of the data is not known in advance. • A Unified Expression RDR fraud deduction technique (UE-RDR) for Big data has been proposed and evaluated on the Spark platform. Empirical tests were executed on multi-node Hadoop cluster using well-known classifiers on bank data, synthetic bank datasets and publicly available datasets from UCI repository. These evaluations demonstrated substantial improvements in terms of classification accuracy, ruleset compactness and execution speed.
Doctor of Philosophy
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Manamela, Kgabo Frans. "Deconstructing speech rituals with specific reference to Northern Sotho : unified approach to disclose analysis." Thesis, 2005. http://hdl.handle.net/10386/3024.

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Books on the topic "Unified Expressions"

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Alqassas, Ahmad. A Unified Theory of Polarity Sensitivity. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780197554883.001.0001.

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This book examines polarity sensitivity—a ubiquitous phenomenon involving expressions such as anybody, nobody, ever, never, and somebody and their counterparts in other languages, with particular focus on Arabic. These expressions belong to different classes such as negative and positive polarity, negative concord, and negative indefinites, which led to examining their syntax and semantics separately. In this book, Ahmad Alqassas pursues a unified approach that relies on examining the interaction between the various types of polarity sensitivity. Treating this interaction is fundamental for scrutinizing their licensing conditions. Alqassas draws on data from Standard Arabic and the major regional dialects represented by Jordanian, Egyptian, Moroccan, and Qatari. The book provides a new perspective on the syntax–semantic interface and develops a unified syntactic analysis for polarity sensitivity. Through the (micro)comparative approach, Alqassas explains the distributional contrasts with a minimal set of universal syntactic operations such as Merge, Move, and Agree, and a fine-grained inventory of negative formal features for polarity items and their licensors. The features are simple invisibles that paint a complex landscape of polarity. The results suggest that syntactic computation of Arabic polarity (externally merged in the left periphery) is subservient to the conceptual–intentional interface. Alqassas argues for last resort insertion of covert negation operators in the CP layer to interpret non-strict NCIs, which is an extra mechanism that serves the semantic interface but adds to the complexity of syntactic computation. Likewise, head NPIs in the left periphery require licensing by operators higher than the tense phrase, adding more constraints on the syntactic licensing.
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Simmons, Keith. A General Theory of Singularities. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198791546.003.0006.

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Chapter 6 presents the singularity theory in formal detail. The theory is pitched at a sufficiently general level to handle in a unified way the notions of denotation, extension, and truth. The central notions of semantic pathology and singularity are defined, and a procedure for determining the semantic value of a pathological token is provided. The chapter gives precise expression to the idea that our semantic expressions are significant everywhere except for certain singularities. Key ingredients of the formal theory include the notions of primary representation, primary tree, and determination tree. Paradoxical cases from previous chapters are used throughout the chapter to illustrate the formal definitions.
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Hatano, Emi. Expression & Possibility Toward a Unified Theory of Modern Dance. H. P. Books, 1996.

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Baumann, Stefan. Second Occurrence Focus. Edited by Caroline Féry and Shinichiro Ishihara. Oxford University Press, 2014. http://dx.doi.org/10.1093/oxfordhb/9780199642670.013.38.

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A ‘Second Occurrence Focus’ (SOF) is the semantic focus of a focus sensitive operator (likeonly) which is contextually given. SOF has been claimed to be phonologically unmarked, which poses a problem for association with focus theories assuming a direct relation between focus and pitch accent. This chapter discusses the main semantic-pragmatic accounts of the SOF challenge but also empirical investigations which found that SOF actuallyismarked by secondary (i.e. non-nuclear) prosodic prominence, providing evidence in favour of association with focus theories. A similar prosodic pattern could be found in semantically and prosodically comparable structures such as cases of implicational bridging. Finally, an outlook on a possible unified approach of the phonological representation of second occurrence expressions is presented which is based on metrical stress.
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Simmons, Keith. Semantic Singularities. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198791546.001.0001.

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This book aims to provide a solution to the semantic paradoxes. It argues for a unified solution to the paradoxes generated by the concepts of reference or denotation, predicate extension, and truth. The solution makes two main claims. The first is that our semantic expressions ‘denotes’, ‘extension’, and ‘true’ are context-sensitive. The second, inspired by a brief, tantalizing remark of Gödel’s, is that these expressions are significant everywhere except for certain singularities, in analogy with division by zero. A formal theory of singularities is presented and applied to a wide variety of versions of the definability paradoxes, Russell’s paradox, and the Liar paradox. The book argues that the singularity theory satisfies the following desiderata: it recognizes that the proper setting of the semantic paradoxes is natural language, not regimented formal languages; it minimizes any revision to our semantic concepts; it respects as far as possible Tarski’s intuition that natural languages are universal; it responds adequately to the threat of revenge paradoxes; and it preserves classical logic and semantics. The book examines the consequences of the singularity theory for deflationary views of our semantic concepts, and concludes that if we accept the singularity theory, we must reject deflationism.
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Khoo, Justin. The Meaning of If. Oxford University Press, 2022. http://dx.doi.org/10.1093/oso/9780190096700.001.0001.

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Conditional sentences remain a puzzling source of philosophical speculation in large part because there seems to be nothing they could possibly mean that would vindicate the roles they play in language and thought. Bringing together work from philosophy and linguistics, Justin Khoo articulates a theory of what conditionals mean that captures their varied and complex behavior. According to the theory, conditionals form a unified class of expressions that share a common semantic core that encodes inferential dispositions. Thus, rather than represent the world, conditionals are devices used to communicate how we are disposed to infer. Khoo shows that this core theory can be extended to predict the correct probabilities of conditionals, as well as the semantic and pragmatic between different kinds of conditionals. The resulting theory has broad implications beyond debates about the meaning of conditionals, including upshots about the nature of metaphysical and epistemic possibility, the cognitive roles of non-factual contents, and the relationship between counterfactuals and causation.
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Flower, Richard, and Morwenna Ludlow, eds. Rhetoric and Religious Identity in Late Antiquity. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198813194.001.0001.

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The topic of religious identity in late antiquity is highly contentious. How did individuals and groups come to ascribe identities based on what would now be known as ‘religion’, categorizing themselves and others with regard to Judaism, Manichaeism, traditional Greek and Roman practices, and numerous competing conceptions of Christianity? How and why did examples of self-identification become established, activated, or transformed in response to circumstances? To what extent do labels (ancient and modern) for religious categories reflect a sense of a unified and enduring social or group identity for those included within them? How does religious identity relate to other forms of ancient identity politics (for example, ethnic discourse concerning ‘barbarians’)? This book responds to the recent upsurge of interest in this issue by developing interdisciplinary research between classics, ancient and medieval history, philosophy, religion, patristics, and Byzantine studies, expanding the range of evidence standardly used to explore these questions. In exploring the malleability and potential overlapping of religious identities in late antiquity, as well as their variable expressions in response to different public and private contexts, it challenges some prominent scholarly paradigms through a combination of methodological discussions and case studies of specific texts, authors, genres, themes, and artistic corpora. In particular, rhetoric and religious identity are here brought together and simultaneously interrogated to provide mutual illumination: in what way does a better understanding of rhetoric (its rules, forms, practices) enrich our understanding of the expression of late-antique religious identity? How does an understanding of how religious identity was ascribed, constructed, and contested provide us with a new perspective on rhetoric at work in late antiquity?
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Cooley, Timothy J., ed. Cultural Sustainabilities. University of Illinois Press, 2019. http://dx.doi.org/10.5622/illinois/9780252042362.001.0001.

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This collection of essays is driven by the proposition that environmental and cultural sustainability are inextricably linked. The authors are unified by the influence of the pioneering work of Jeff Todd Titon in developing broadly ecological approaches to folklore, ethnomusicology, and sustainability. These approaches lead to advocacy and activism. Building on and responding to Titon's work, the authors call for profoundly integrated efforts to better understand sustainability as a challenge that encompasses all living beings and ecological systems, including human cultural systems. While many of the chapters address musicking and ecomusicology, others focus on filmmaking, folklore, digital media, philosophy, and photography. Organized into five parts, Part 1 establishes a theoretical foundation and suggests methods for approaching the daunting issues of sustainability, resilience, and adaptive management. Part 2 offers five case studies interpreting widely divergent ways that humans are grappling with ecological and environmental challenges by engaging in expressive culture. Part 3 illustrates the role of media in sustainable cultural practices. Part 4 asks how human vocal expression may be central to human self-realization and cultural survival with case studies ranging from the digital transmission of Torah chanting traditions to Russian laments. Part 5 embraces Titon's highly influential work establishing and promoting applied ethnomusicology, and speaks directly to the themes of advocacy and activism.
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Schak, David C. Civility and Its Development. Hong Kong University Press, 2018. http://dx.doi.org/10.5790/hongkong/9789888455973.001.0001.

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How does civility, defined as considerate treat of others, including strangers, and of the public space, develop in a society? This book aims to answer this question by comparing the processes and outcomes to date of efforts to develop civility in China and Taiwan, two societies that. It first examines the origins and development of civility in Europe questions and whether there was a comparable concept in dynastic China. It follows with arguments for the comparability of China and Taiwan on the basis of their shared cultural heritage, including a conceptual basis for and a history of incivility, authoritarian governance for most of the period since the seventeenth century when the Qing first controlled Taiwan, and top-down civilizing campaigns by the governments of each. It then examines the levels of civility first in China then in Taiwan and examines how Taiwan evolved from an uncivil society composed of myriad small, inward-looking communities, a society in itself, to a very civil society unified by civic nationalism, a society for itself. The concluding chapter examines differences between Taiwan and China that shed light on why the latter has been less successful in developing civility than the former and compares the development of civility with that of democracy, arguing that self-expression values are a prerequisite for both.
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Luc, Laporte, Large Jean-Marc, Nespoulous Laurent, Scarre Chris, and Steimer-Herbet Tara, eds. Megaliths of the World. Archaeopress Archaeology, 2022. http://dx.doi.org/10.32028/9781803273204.

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<i>Megaliths of the World</i> brings together the latest research on megalithic monuments throughout the world. Many of these sites are well known, others less familiar, yet equally deserving of close attention. Megalithic monuments in different regions of the world are far from being a single unified phenomenon, having varied chronologies, and diverse origins, but they all share a certain family resemblance through their common characteristic: the deployment of large stones. No fewer than 150 researchers have contributed 72 articles and inserts, providing a vital region-by region account of the megalithic monuments in their specialist areas, and the current state of knowledge. <br><br> The insights offered in these volumes emphasize the particular character and significance of these apparently inanimate stones. The use of such large blocks must surely have been an expression of power or prestige, yet the size and materiality of the stones themselves opens up new perspectives into the meaning and symbolism of these monuments, the places from which the blocks were derived, and the way they were manipulated and shaped. <br><br> <i>Megaliths of the World</i> takes the reader on a fascinating journey, offering new insights through encounters with megaliths and megalithic traditions that will often be new and unfamiliar. Highlighting salient themes, it provides a compendium of detailed information that will be vital to anyone interested in the phenomenon of megalithic monumentality.
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Book chapters on the topic "Unified Expressions"

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Haq, Ikram Ul, Iqbal Gondal, and Peter Vamplew. "Enhancing Model Performance for Fraud Detection by Feature Engineering and Compact Unified Expressions." In Algorithms and Architectures for Parallel Processing, 399–409. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-38961-1_35.

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Hayashi, Noritsugu. "Towards a Unified, Semantically-Calculable and Anti-lexicalistic Analysis of Various Anaphoric Expressions Using “Stacked” Continuations." In New Frontiers in Artificial Intelligence, 214–30. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58790-1_14.

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Nishioka, T., and K. Kondo. "A Unified Derivation of Explicit Expressions for Transient Asymptotic Solutions of Dynamically Propagating Cracks under the Mode I, II and III Unsteady State Conditions." In Contemporary Research in Engineering Science, 393–417. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-80001-6_23.

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Nipkow, Tobias, and Dmitriy Traytel. "Unified Decision Procedures for Regular Expression Equivalence." In Interactive Theorem Proving, 450–66. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-08970-6_29.

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Goyal, Vikram, S. K. Gupta, and Anand Gupta. "A Unified Audit Expression Model for Auditing SQL Queries." In Lecture Notes in Computer Science, 33–47. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-70567-3_3.

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Zhang, Shuzhong, Kun Wang, Cody Ashby, Bilian Chen, and Xiuzhen Huang. "A Unified Adaptive Co-identification Framework for High-D Expression Data." In Pattern Recognition in Bioinformatics, 59–70. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-34123-6_6.

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Yan, Zhenjun, Zhaoyuan Yu, Yun Wang, Wen Luo, Jiyi Zhang, Hong Gao, and Linwang Yuan. "Unified Expression Frame of Geodetic Stations Based on Conformal Geometric Algebra." In Advances in Computer Graphics, 682–93. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-89029-2_51.

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Yu, Jun. "A Unified Framework for Monocular Video-Based Facial Motion Tracking and Expression Recognition." In MultiMedia Modeling, 50–62. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-51814-5_5.

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Guojin, Chen, Su Shaohui, Gong Youping, and Zhu Miaofen. "Research on Expression Method of a Unified Constraint Multi-domain Model for Complex Products." In Communications in Computer and Information Science, 177–83. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-15859-9_25.

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Zaionc, Marek. "The set of unifiers in typed λ-calculus as regular expression." In Rewriting Techniques and Applications, 430–40. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/3-540-15976-2_23.

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Conference papers on the topic "Unified Expressions"

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Chang, Ming, Shi Han, and Dongmei Zhang. "A Unified Framework for Recognizing Handwritten Chemical Expressions." In 2009 10th International Conference on Document Analysis and Recognition. IEEE, 2009. http://dx.doi.org/10.1109/icdar.2009.64.

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SHI, Yu, HaiYang LI, and Frank K. SOONG. "A Unified Framework for Symbol Segmentation and Recognition of Handwritten Mathematical Expressions." In Ninth International Conference on Document Analysis and Recognition (ICDAR 2007) Vol 2. IEEE, 2007. http://dx.doi.org/10.1109/icdar.2007.4377036.

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Mayle, R. E., K. Dullenkopf, and A. Schulz. "The Turbulence That Matters." In ASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/97-gt-274.

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A unified expression for the spectrum of turbulence is developed by asymptotically matching known expressions for small and large wave numbers, and a formula for the one-dimensional spectral function which depends on the turbulence Reynolds number Reλ is provided. In addition, formulas relating all the length scales of turbulence are provided. These relations also depend on Reynolds number. The effects of free-stream turbulence on laminar heat transfer and pre-transitional flow in gas turbines are re-examined in light of these new expressions using our recent thoughts on an ‘effective’ frequency of turbulence and an ‘effective’ turbulence level. The results of this are that the frequency most effective for laminar heat transfer is about 1.3U/Le, where U is the free-stream velocity and Le is the length scale of the eddies containing the most turbulent energy, and the most effective frequency for producing pre-transitional boundary layer fluctuations is about 0.3U/η where η is Kolmogorov’s length scale. In addition, the role of turbulence Reynolds number on stagnation heat transfer and transition is discussed, and new expressions to account for its effect are provided.
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Eryilmaz, Bora, and Bruce H. Wilson. "A Unified Model of a Proportional Valve." In ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-0775.

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Abstract Developments in nonlinear control theory have made it possible to design controllers for systems having non-smooth nonlinearities in their dynamics. Hydraulic systems that use inexpensive proportional valves are examples of such systems, where non-smooth nonlinearities arise due to valve geometry and spool imperfections. Without a proper valve model, however, nonlinear analysis and control of these hydraulic systems is not possible. We have developed nonlinear equations for a generic proportional valve model and have used them to obtain simplified flow rate expressions under generally accepted assumptions. These equations related a set of geometric spool properties and physical model variables to the flow rate through the valve ports. The development focuses on obtaining a single set of flow rate equations for the cases of critical center, overlapped, and underlapped proportional valves. The proportional valve model equations are useful for system simulation and for nonlinear controller design.
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Bahukudumbi, P., and Ali Beskok. "A Unified Model for Shear Driven Gas Micro Flows." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-33699.

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We analyze steady one-dimensional plane Couette flows in the entire Knudsen regime with the objective of modelling shear-driven rarefied gas flows encountered in various micro electromechanical system (MEMS) applications. In particular, we develop a unified empirical model, which includes analytical expressions for the velocity distribution and shear stress. The new model is validated by comparisons with the linearized Boltzmann solutions available in the literature, as well as hard-sphere direct simulation Monte Carlo (DSMC) results. Overall, the new model predicts the velocity distribution and shear stress with good accuracy for a wide range of Knudsen numbers (0 &lt; Kn ≤ 12), and it is valid for incompressible or low subsonic compressible flows (Ma ≤ 0.3).
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Li, Yi-Fan, and Keigo Iizuka. "Even and odd waves in a symmetrical three-layer planar waveguide with a nonlinear film." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1993. http://dx.doi.org/10.1364/oam.1993.thdd.34.

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Unified expressions for the eigenvalue equation, field distribution and total power flow for symmetrical even and odd TE modes in a symmetrical waveguide comprising a nonlinear film are obtained for all possible linear dielectric profiles with both self-focusing and self-defocusing nonlinearities.
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Jin, Xiaoqing, Leon M. Keer, and Qian Wang. "Analytical Solution for the Stress Field of Eshelby’s Inclusion of Polygonal Shape." In ASME/STLE 2009 International Joint Tribology Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/ijtc2009-15211.

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Recently, we developed a closed-form solution to the stress field due to a point eigenstrain in an elastic full plane. This solution can be employed as a Green’s function to compute the stress field caused by an arbitrary-shaped Eshelby’s inclusion subjected to any distributed eigenstrain. In this study, analytical expressions are derived when uniform eigenstrain is distributed in a planar inclusion bounded by line elements. Here it is demonstrated that both the interior and exterior stress fields of a polygonal inclusion subjected to uniform eigenstrain can be represented in a unified expression, which consists of only elementary functions. Singular stress components are identified at all the vertices of the polygon. These distinctive properties contrast to the well-known Eshelby’s solution for an elliptical inclusion, where the interior stress field is uniform but the formulae for the exterior field are remarkably complicated. The elementary solution of a polygonal inclusion has valuable application in the numerical implementation of the equivalent inclusion method.
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Salahat, Ehab, and Ali Hakam. "Novel unified expressions for error rates and ergodic channel capacity analysis over generalized fading subject to AWGGN." In GLOBECOM 2014 - 2014 IEEE Global Communications Conference. IEEE, 2014. http://dx.doi.org/10.1109/glocom.2014.7037429.

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Cui, Weicheng, Fang Wang, and Xiaoping Wang. "Towards a Unified Fatigue Life Prediction (UFLP) Method for Marine Structures: An Overview." In ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/omae2010-21007.

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Marine structures such as ships and offshore platforms are mostly made of metals and designed with damage tolerance. This design philosophy requires accurate prediction of fatigue crack growth under service conditions. Now more and more people have realized that only a fatigue life prediction method based on fatigue crack propagation (FCP) theory has the potential to explain various fatigue phenomena observed. However, it is not the case that any type of FCP theory can work. As a matter of fact, from the very fundamental question of fatigue crack driving forces to the more complicated fatigue crack growth rate expressions all are needed critical examination. In the past several years, the group led by the authors have made some efforts in developing a unified fatigue life prediction (UFLP) method for marine structures. By unified method the authors mean that the method should be able to explain all the observed fatigue phenomena. In this paper, an overview of these researches is carried out and our main research results are presented.
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Müller, Sebastian, and Andreas Malcherek. "A Unified Theory for the Pressure Change of Sudden Expansions and Contractions Based on the Momentum Balance." In ASME 2021 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/fedsm2021-65703.

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Abstract In this paper a unified approach based on the momentum balance is presented, capable of predicting the pressure change of sudden contractions and sudden expansions. The use of empirically determined correction coefficients is not necessary. Therefore, the momentum balance is derived similarly for both applications but with different control volumes. The control volume takes into account the specific geometry of the hydraulic structure. With a properly chosen control volume, the unified approach requires coefficients that account for the velocity as well as pressure distributions on the boundaries of the control volume. These coefficients can be obtained by parameterizing the results of numerical simulations by simple analytical functions. The numerical model itself is validated by checking the simulated pressure change against calculated or measured pressure changes. It is found that the formulation of the momentum balance for the sudden expansion is more complex compared with the sudden contraction. The prediction of the pressure change of flows through sudden expansions can be improved by applying the momentum balance non-idealized. Most of the correction coefficients originate from an inappropriate application of Bernoulli’s energy conservation principle. Consequently, this leads to a gap between theory and experimental results. The proposed unified approach solely contains physical coefficients that are used to substitute integrals by averaged expressions.
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Reports on the topic "Unified Expressions"

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Hlushak, Oksana M., Svetlana O. Semenyaka, Volodymyr V. Proshkin, Stanislav V. Sapozhnykov, and Oksana S. Lytvyn. The usage of digital technologies in the university training of future bachelors (having been based on the data of mathematical subjects). [б. в.], July 2020. http://dx.doi.org/10.31812/123456789/3860.

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This article demonstrates that mathematics in the system of higher education has outgrown the status of the general education subject and should become an integral part of the professional training of future bachelors, including economists, on the basis of intersubject connection with special subjects. Such aspects as the importance of improving the scientific and methodological support of mathematical training of students by means of digital technologies are revealed. It is specified that in order to implement the task of qualified training of students learning econometrics and economic and mathematical modeling, it is necessary to use digital technologies in two directions: for the organization of electronic educational space and in the process of solving applied problems at the junction of the branches of economics and mathematics. The advantages of using e-learning courses in the educational process are presented (such as providing individualization of the educational process in accordance with the needs, characteristics and capabilities of students; improving the quality and efficiency of the educational process; ensuring systematic monitoring of the educational quality). The unified structures of “Econometrics”, “Economic and mathematical modeling” based on the Moodle platform are the following ones. The article presents the results of the pedagogical experiment on the attitude of students to the use of e-learning course (ELC) in the educational process of Borys Grinchenko Kyiv University and Alfred Nobel University (Dnipro city). We found that the following metrics need improvement: availability of time-appropriate mathematical materials; individual approach in training; students’ self-expression and the development of their creativity in the e-learning process. The following opportunities are brought to light the possibilities of digital technologies for the construction and research of econometric models (based on the problem of dependence of the level of the Ukrainian population employment). Various stages of building and testing of the econometric model are characterized: identification of variables, specification of the model, parameterization and verification of the statistical significance of the obtained results.
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