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381
Gradient method for designing cascaded DOEs focusing radiation of different wavelengths
Published 2025-02-01“…Explicit expressions are obtained for the derivatives of the functional, and on this basis, a gradient method for designing cascaded DOEs is formulated. …”
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382
Optimization of Shift Strategy Based on Vehicle Mass and Road Gradient Estimation
Published 2024-11-01“…For electrically driven commercial vehicles equipped with three-speed automatic mechanical transmission (AMT), the transmission control unit (TCU) without vehicle mass and road gradient estimation function will lead to frequent shifting and insufficient power during vehicle full-load or grade climbing. …”
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383
On Solving of Constrained Convex Minimize Problem Using Gradient Projection Method
Published 2018-01-01“…Let C and Q be closed convex subsets of real Hilbert spaces H1 and H2, respectively, and let g:C→R be a strictly real-valued convex function such that the gradient ∇g is an 1/L-ism with a constant L>0. …”
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384
The Impact of Plasma Density Gradients on Lower Band Chorus Wave Propagation
Published 2025-03-01“…Here, for the first time, this relationship is investigated more generally by considering the wave normal angle, θk, as a function of the magnitude of all observed density gradients. …”
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385
Boundedness of Global Solutions for a Heat Equation with Exponential Gradient Source
Published 2012-01-01“…To do so, we explicitly compute a nontrivial Lyapunov's functional by carrying out the method of Zelenyak.…”
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386
Evolution of Reynolds Stresses in Turbulent Wake-Flows with Longitudinal Pressure Gradient
Published 1976-12-01“…Special importance has also been attached to the analysis of energy spectrum functions and their dependence on longitudonal pressure gradient, The spectral coefficient of double correlation between turbulent velocity components has been found to be an increasing function of , which may be treated as a tendency of accelerated flows to a more intensive stabilization of isotropic structure. …”
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387
New conjugacy condition with pair-conjugate gradient methods for unconstrained optimization
Published 2009-09-01“…Conjugate gradient methods are wildly used for unconstrained optimization especially when the dimension is large. …”
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388
Optimization method for variable fractional delay filters based on gradient descent
Published 2025-04-01“…Firstly, the matrix form of the objective function and gradient expressions were derived, and an exponential moving average was used to adjust the step size based on historical and current gradient information. …”
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389
The impact of gradient variable temperature fermentation on the quality of cigar tobacco leaves
Published 2024-12-01“…Changes in sensory evaluation, chemical composition, and bacterial absolute quantitative structure and function were examined throughout the process of gradient variable temperature fermentation.ResultsCompared to constant temperature fermentation, gradient variable temperature fermentation improved the sensory quality of CTLs, reduced total sugar and cembrane degradation products, and increased the amino acid contents. …”
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390
Improving the Accuracy of Neural Network Pattern Recognition by Fractional Gradient Descent
Published 2024-01-01“…This optimizer searches the global minimum of the loss function considering the fractional gradient directions achieved by Riemann-Liouville, Caputo, and Grunwald-Letnikov derivatives. …”
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391
Adaptive Multi-Gradient Guidance with Conflict Resolution for Limited-Sample Regression
Published 2025-07-01“…Recent studies report that gradient guidance extracted from a single-reference model can improve Limited-Sample regression. …”
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392
A Gradient-Based Reinforcement Learning Algorithm for Multiple Cooperative Agents
Published 2018-01-01“…Furthermore, we apply the Q-value function to estimate the gradient and derive the probability of maximal reward based on estimated gradient ascent (PMR-EGA) algorithm. …”
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393
Variable-Parameter Impedance Control of Manipulator Based on RBFNN and Gradient Descent
Published 2024-12-01“…To address the computationally intensive nature of current hybrid force/position control methods, a variable-parameter impedance control method for manipulators, utilizing a gradient descent method and Radial Basis Function Neural Network (RBFNN), is proposed. …”
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394
Specificity and tunability of efflux pumps: A new role for the proton gradient?
Published 2025-01-01“…These results highlight the unexpected effects of thermodynamic driving forces out of equilibrium and illustrate how efflux pump structure and function are conducive to the emergence of multidrug resistance.…”
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395
Formation and Evolution Simulations of Saturn, Including Composition Gradients and Helium Immiscibility
Published 2025-01-01“…Models of the distribution of heavy elements as a function of radius are compared with those derived to fit the observations of the Cassini mission, with rough qualitative agreement. …”
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396
Stochastic Zeroth-Order Multi-Gradient Algorithm for Multi-Objective Optimization
Published 2025-02-01“…Nowadays, many MOO algorithms assume that gradient information is easily available and use this information to optimize functions. …”
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397
Estimates of the Hyperbolic Radius Gradient and Schwarz–Pick Inequalities for the Eccentric Annulus
Published 2016-06-01“…By A(Ω, Π) we shall designate the class of functions f which are holomorphic or meromorphic in Ω and such that f(Ω) ϲ Π. …”
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398
Importance of gradients in membrane properties and electrical coupling in sinoatrial node pacing.
Published 2014-01-01“…Normal functioning of the SAN (in terms of cycle length, position of leading pacemaker site, conduction times, activation and repolarization sequences and space constants) was observed when, from the centre to the periphery, (i) cell characteristics (cell size and ionic current densities) were changed in a gradient fashion from a central-type (lacking INa) to a peripheral-type (possessing INa) and (ii) coupling conductance was increased in a gradient fashion. …”
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399
New Scaled Proposed formulas For Conjugate Gradient Methods in Unconstrained Optimization
Published 2014-12-01“…In this paper, three efficient Scaled Nonlinear Conjugate Gradient (CG) methods for solving unconstrained optimization problems are proposed. …”
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400
New Scale Dai-Yaun Conjugate Gradient Method for Unconstrained Optimization
Published 2013-12-01“…In this paper, we suggest a modified Dai-Yuan conjucay coefficient of conjugate gradient algorithm and propose new spectral form three-term conjugate gradient algorithm. …”
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