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Suggested Topics within your search.
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1101
On Applicability of the Radially Integrated Geopotential in Modelling Deep Mantle Structure
Published 2025-07-01“…., gravity potential) is smoother than its gradient (i.e., gravity), we apply the integral operator to geopotential and then investigate the spatial pattern of this functional (i.e., radially integrated geopotential). …”
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1102
The Spiral Discovery Network as an Automated General-Purpose Optimization Tool
Published 2018-01-01“…Besides directly helping to identify functional patterns in such systems, SDM also simplifies their control through its characteristic spiral structure. …”
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1103
Iterative approach for photonic crystal devices design
Published 2024-10-01“…The design of functional PhC structures with expected characteristics (for example, waveguides) for a certain wavelength (albeit given by a monochromatic radiation source) is described. …”
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1104
Echocardiographic Monitoring of Intracardiac Hemodynamics in Neonatal Respiratory Distress Syndrome
Published 2010-08-01“…Group 1 comprised 34 infants with severe RDS who received the exogenous surfactant Curosurf and Group 2 consisted of 17 apparently healthy premature newborn infants. Results. Functional tension of the cardiovascular system was characterized for premature neonates with RDS. …”
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1105
Left ventricular segmentation method based on optimized UNet and improved CBAM: ESV and EDV tracking study.
Published 2025-01-01“…To further stabilize training and address gradient issues, we combine binary cross-entropy and Dice loss functions. …”
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1106
A DRL-based optimization method for microgrid operation
Published 2025-06-01“…The twin delayed deep deterministic policy gradient (TD3) algorithm is employed to derive microgrid scheduling strategies in a data-driven manner. …”
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1107
Combined effects of Hall and ion-slip currents and heat transfer on peristaltic transport of a copper–water nanofluid
Published 2025-02-01“…The expressions for the velocity field, stream function, pressure gradient, pressure rise, temperature distribution, and nanoparticle concentration are computed. …”
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1108
Novel Special Orthogonal Group Optimization for Coarse Alignment Method of SINS on a Rocking Base
Published 2022-01-01“…In order to directly reflect the change in the attitude error in the new innovation term and enable the attitude error to converge to zero as fast as possible, the gradient of the new attitude error function has been selected as the new innovation term to compensate for the attitude in the estimation process. …”
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1109
Gradience and optionality in the syntactic realization of focus
Published 2025-05-01“…In addition, while Catalan is insensitive to the grammatical function of the focus, in both Spanish and Italian preverbal subjects are rated higher than preverbal objects. …”
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1110
Radionuclide methods in assessing pulmonary perfusion and ventilation in patients with connective tissue dysplasia
Published 2022-10-01“…Static pulmonary ventilation – perfusion scintigraphy allows to identify functional disorders in patients with CTD at the preclinical stage: a decrease in the perfusion gradient on average by 24% compared with the control group and an increase in alveolar – capillary membrane permeability.…”
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1111
Coastal urbanization-related stressors affect fish herbivory in the Spermonde Archipelago, Indonesia
Published 2025-03-01“…Quantifying fish herbivory, a key ecological process mitigating such transitions, is essential for understanding reef health, functioning, and resilience. This study examined herbivory rates (bites multiplied by fish biomass) across five fish functional groups (detritivores, croppers, browsers, scrapers, and excavators) in relation to coral reef conditions along a gradient of urban influence in the Spermonde Archipelago, Indonesia. …”
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1112
A class of constrained optimal control problems arising in an immunotherapy cancer remission process
Published 2024-10-01“…Then, we derive gradients of the cost function and/or the constraints in the resulting problems. …”
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1113
A cell-and-plasma numerical model reveals hemodynamic stress and flow adaptation in zebrafish microvessels after morphological alteration.
Published 2023-12-01“…The development of a functional cardiovascular system ensures a sustainable oxygen, nutrient and hormone delivery system for successful embryonic development and homeostasis in adulthood. …”
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1114
Research on the Design and Simulation of Missile Intelligent Agent Autopilot Integrated With Deep Reinforcement Learning
Published 2025-01-01“…This paper proposes an innovative method for missile autopilot design based on the deep deterministic policy gradient (DDPG) algorithm. Under the framework of deep reinforcement learning, by integrating the missile’s dynamic characteristics to optimize the reward function and network structure, an adaptive control model capable of adapting to complex flight conditions was constructed. …”
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1115
Fundamental Structure of General Stochastic Dynamical Systems: High-Dimension Case
Published 2022-01-01“…According to scientific understanding, we assert that its deterministic part can be decomposed into three significant parts: the gradient of the potential function, friction matrix and Lorenz matrix. …”
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1116
Performance Analysis of Diabetes Detection Using Machine Learning Classifiers
Published 2024-10-01“…Three types of machine learning classifiers are used: Tree-based, Function-based, and Rule-based. Results have shown that Stochastic Gradient Descent (function), Logistic Regression (function), JRip (rules) and Random Forests (trees) are among the top performing classifiers. …”
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1117
The variational theory of fracture: diffuse cohesive energy and elastic-plastic rupture
Published 2013-04-01“…The model predicts different fracture modes, brittle and ductile, depending on the analytical form of the cohesive energy function.…”
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1118
Application of machine learning and neural network models based on experimental evaluation of dissimilar resistance spot-welded joints between grade 2 titanium alloy and AISI 304 s...
Published 2024-12-01“…The best prediction model was found to be the ANN model when training the conjugate gradient with the Polak-Ribiere updates (Traincgp) training function with the hyperbolic tangent sigmoid transfer function (Tansig) with the mean squared error (MSE) and correlation coefficient (R2) values recorded as 0.01886 and 0.94973, respectively. …”
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1119
Identification of bacterial key genera associated with breast cancer using machine learning techniques
Published 2025-03-01“…Emerging evidence suggests that the gut microbiota, which influences immune function, metabolism, and inflammation, may also play a critical role in BC risk. …”
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1120
Can Right Heart Catheterization Improve the Prediction of Positive Response to Resynchronization Therapy?
Published 2025-02-01“…<b>Background/Objectives</b>: Cardiac resynchronization therapy (CRT) is one of the interventional methods of heart failure (HF) treatment, with the criteria for CRT device implantation based on the value of the left ventricular ejection fraction, New York Heart Association functional class, QRS complex duration, and electrocardiographic morphology. …”
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