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261
Higgs mechanism for the Ashtekar self-dual connection
Published 2025-07-01“…We finally investigate the effect of these mass terms on gravitational waves and find that the wave equation remains unchanged relatively to GR; however the Weyl tensor is scaled by a constant which depends on the mass of the connection components.…”
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262
Determination of Lateral Modulation Apodization Functions Using a Regularized, Weighted Least Squares Estimation
Published 2010-01-01“…Recently, work in this group has focused on the lateral cosine modulation method (LCM) which can be used for next-generation ultrasound (US) echo imaging and tissue displacement vector/strain tensor measurements (blood, soft tissues, etc.). For instance, in US echo imaging, a high lateral spatial resolution as well as a high axial spatial resolution can be obtained, and in tissue displacement vector measurements, accurate measurements of lateral tissue displacements as well as of axial tissue displacements can be realized. …”
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263
Quantum computing topological invariants of two-dimensional quantum matter
Published 2024-12-01“…The first algorithm uses many qubits, and we analyze it using a tensor-network simulator of quantum circuits. The second circuit uses fewer qubits, and we implement it experimentally on a quantum computer based on superconducting qubits. …”
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264
Registration of natural emission of hydrocarbon deposits on the basis of two-frequency signals
Published 2025-01-01“…The article presents the results of modelling and experimental studies on the method of registration of natural emission of hydrocarbon deposits on the basis of two-frequency signals. …”
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265
Loop blow-up inflation
Published 2024-07-01“…Abstract We present a new model of string inflation driven by a blow-up Kähler modulus of type IIb compactifications with a potential generated by string loops. …”
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266
The Comparison of Myoelectric Activity of Selected Lower Limb Muscles during Three Common Quadriceps Strength Exercises Performed with Different Loads
Published 2011-10-01“…The aim of the present study was to compare myoelectric activity of some selected lower limb muscles during squat, leg press and hack squat exercises performed with different loads. 10 male power lifters (age: 27±4.85 yrs; height: 177±5.98 cm; weight: 80±12.13 kg) participated in the study. …”
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267
Surface acoustic wave sensitivity on an exterenal mechanical or electrical bias
Published 2014-05-01“…Basing on this theory, the velocity shifts of surface acoustic waves (SAW) for lithium niobate due to an external static stress or electric field are presented. Stress sensitivity is defined through six independent components of a second order symmetric tensor, and the electric field sensitivity is a vector of three components. …”
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268
The concept of fractured rock-mass modeling using DFN-based statistical volume elements
Published 2024-11-01“…Thus, in analysis of underground structures, such as tunnels, it is required that the fractures’ influence on the stress and deformation state in the vicinity of the structure is taken into account. In the present work, we examine the applicability of the statistical volume element (SVE) approach to determining the apparent stiffness tensor of an equivalent continuum representation of the fractured rock, which is then used in the framework of the finite element method. …”
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269
Multiplane Optimizing Phase Holograms Using Advanced Machine Learning Algorithms and GPU Acceleration
Published 2024-11-01“…The proposed method utilizes TensorFlow to implement custom propagation layers, optimizing the phase hologram to reduce errors at strategically selected distances.…”
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270
RosenPy: An open source Python framework for complex-valued neural networks
Published 2024-12-01“…Current Python frameworks for deep learning, such as TensorFlow, Keras, PyTorch, and scikit-learn, only solve real-domain problems, representing a considerable part of real-world applications but not all. …”
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271
Biclustering Multivariate Longitudinal Data with Application to Recovery Trajectories of White Matter After Sport-Related Concussion
Published 2024-12-01“…Motivated by a longitudinal diffusion tensor imaging study of sport-related concussion (SRC), we present the problem of biclustering multivariate longitudinal data in which subjects and features are grouped simultaneously based on longitudinal patterns rather than magnitude. …”
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272
Modern possibilities of MRI-based diagnosis of multiple sclerosis. Literature review
Published 2024-04-01“…Key attention is paid to such promising methods as assessment of brain and spinal cord atrophy, brain perfusion MRI, and diffusion tensor imaging. Implementation of these approaches in MRI can help solve the problem of early diagnosis of multiple sclerosis and determine more reliable markers of a response to ongoing therapy.…”
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273
Williams expansion-based approximation of the stress field in an Al 2024 body with a crack from optical measurements
Published 2017-07-01“…A study on the approximation of the stress field in the vicinity of crack tip in a compact tension specimen made from Al 2024-T351 is presented. Crack tip stress tensor components are expressed using the linear elastic fracture mechanics (LEFM) theory in this work, more precisely via its multi-parameter formulation, i.e. by Williams power series (WPS). …”
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274
CUDA-Accelerated Geodesic Ray-Tracing for Fiber Tracking
Published 2011-01-01“…Diffusion Tensor Imaging (DTI) allows to noninvasively measure the diffusion of water in fibrous tissue. …”
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275
A Novel Neutrosophic Integral Framework for Classroom Teaching Quality Analysis in Children’s Dance Aesthetic Education
Published 2025-07-01“…We introduce several new mathematical tools: the Generalized Neutrosophic Integral (GNI), Time-Weighted Neutrosophic Integral (NTWI), Game-Theoretic Neutrosophic Integral (GTNI), and Neutrosophic Tensor Representation (NTL). These tools allow precise modeling of dynamic, emotional, and conflicting classroom observations. …”
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276
Charged wormhole solutions in 4D Einstein-Gauss-Bonnet gravity
Published 2024-10-01“…In the present work, we construct models of static wormholes in 4-dimensional Einstein-Gauss-Bonnet (4D EGB) gravity with an (an)isotropic energy momentum tensor (EMT) and a Maxwell field as supporting matters for the wormhole geometry assuming a constant redshift function. …”
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277
Gravitational production of massive vectors non-minimally coupled to gravity
Published 2025-07-01“…In order to construct a gauge invariant theory of massive vectors that couple to the Ricci scalar and Ricci tensor, a generalization of the Stuckelberg mechanism has been invoked. …”
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278
Cosmological singularities in brane gravity
Published 2025-08-01“…We present a comprehensive study of cosmological singularities within the framework of Covariant Extrinsic Gravity (CEG), addressing both the initial Big Bang singularity and potential finite-time future singularities. …”
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279
Image captioning using bidirectional LSTM neural network
Published 2025-05-01“…Implemented in Python with TensorFlow and Cross on Google Colab, the proposed model is compared to five other LSTM-based models. …”
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280
Precise Measurement and Formulation of Plastic Behaviour of Metals
Published 1978-09-01“… In the present paper, results of investigations on the plastic behaviour under complex-loading by using an automatic complex-loading testing machine are summarized in accordance with the data obtained in our laboratory. …”
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