Results 281 to 290 of about 3,703,082 (328)

Sodium gradient dependent calcium transport in renilla lumisomes

Biochemical and Biophysical Research Communications, 1978
Renilla lumisomes are membrane-bounded bioluminescent vesicles which produce light when the lumisomal membrane is made permeable to Ca2+. During studies of Ca2+ transport we found that lumisomes can be made permeable to Ca2+ by establishing a Na+ gradient with the higher Na+ concentration being on the inside of the lumisomal membrane.
J M, Anderson, M J, Cormier
openaire   +2 more sources

Gradient Dependent Fatigue Limit Criterion

1999
Experimental evidence has shown that the fatigue limit of metallic cylindrical specimens in fully reversed bending is significantly higher than the respective limit in fully reversed tension-compression. The higher values of the bending fatigue limits observed have to be attributed to the benign influence of the gradient of the bending normal stress on
openaire   +1 more source

A GENERALIZED VARIABLE FORMULATION FOR GRADIENT DEPENDENT SOFTENING PLASTICITY

International Journal for Numerical Methods in Engineering, 1996
Summary: A mesh-independent finite element method for elastoplastic problems with softening is proposed. The regularization of the boundary value problem is achieved introducing in the yield function the second order gradient of the plastic multiplier.
COMI, CLAUDIA, PEREGO, UMBERTO
openaire   +3 more sources

Learning long-term dependencies with gradient descent is difficult

IEEE Transactions on Neural Networks, 1994
Recurrent neural networks can be used to map input sequences to output sequences, such as for recognition, production or prediction problems. However, practical difficulties have been reported in training recurrent neural networks to perform tasks in which the temporal contingencies present in the input/output sequences span long intervals. We show why
BENGIO Y, SIMARD P, FRASCONI, PAOLO
openaire   +3 more sources

Intracellular metabolic gradients dictate dependence on exogenous pyruvate

Nature Metabolism
During developmental transitions, cells frequently remodel metabolic networks, including changing reliance on metabolites such as glucose and glutamine to fuel intracellular metabolic pathways. Here we used embryonic stem (ES) cells as a model system to understand how changes in intracellular metabolic networks that characterize cell state transitions ...
Benjamin T. Jackson, Angela M. Montero, Sangita Chakraborty, Julia S. Brunner, Paige K. Arnold, Anna E. Bridgeman, Pavlina K. Todorova, Katrina I. Paras, Lydia W. S. Finley   +8 more
openaire   +2 more sources

Natural gradient for temporally dependent component analysis

2010 Sixth International Conference on Natural Computation, 2010
The temporally dependent component analysis (TDCA) method for blind source separation (BSS) is introduced. As a new principle, it is shown that maximizing the mapping of autocorrelation of source signals can be used to perform BSS. We use the natural gradient algorithm for TDCA and study the mathematical properties of TDCA.
Zhenwei Shi, Dalong Cheng, null Xueyan Tan, Zhiguo Jiang   +3 more
openaire   +1 more source

Time-dependent gradients of growing interfaces

Physical Review E, 1994
, Poupart, , Zumofen
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Nonlinear singular problems with gradient dependence

The Journal of Analysis
Jiangfeng Han, Zhenhai Liu, Nikolaos Papageorgiou   +2 more
semanticscholar   +1 more source

A Parametric Dirichlet Problem for Systems of Quasilinear Elliptic Equations With Gradient Dependence

, 2016
D. Motreanu, C. Vetro, F. Vetro
semanticscholar   +1 more source

Nonlocal Gradient-Dependent Thermodynamics for Modeling Scale-Dependent Plasticity

International Journal for Multiscale Computational Engineering, 2007
George Z. Voyiadjis, Rashid K. Abu Al-Rub   +1 more
openaire   +1 more source