Results 121 to 130 of about 5,309,525 (360)
Preconditioning for Allen-Cahn variational inequalities with non-local constraints [PDF]
, 2010 The solution of Allen-Cahn variational inequalities with mass constraints is of interest in many applications. This problem can be solved both in its scalar and vector-valued form as a PDE-constrained optimization problem by means of a primal-dual active
Blank, Luise +2 more
core
Polycyclic Aromatics as Promising Phosphorescence Materials
ChemistryEurope, EarlyView.This review focuses on the recent progress of polycyclic aromatic compounds (PACs)‐based phosphorescent materials. Their molecular structural characteristics as promising phosphors are highlighted, and the efficient strategies from molecular and aggregation levels have been illustrated systematically to promote the development of PACs with desirable ...
Peipei Liu, Qianqian Li, Zhen Li
wiley +1 more source
Nonlinear dynamics of turbulent waves in fluids and plasmas [PDF]
Nonlinear Processes in Geophysics, 2005 In a model drift wave system that is interesting both in fluids and plasmas, we find that an embedded moving saddle point plays an important role at the onset of turbulence.
K. He, A. C.-L. Chian
doaj
On the saddle-point solution of a class of stochastic differential games [PDF]
, 1981 Tamer Başar
openalex +1 more source
Copper‐Catalyzed Defluorinative Allylboration of Allenes with Trifluoromethyl Alkenes
ChemistryEurope, EarlyView.A copper‐catalyzed borylative coupling of allenes with 1‐trifluoromethyl alkenes is reported. The reaction selectively provides synthetically versatile borylated 1,1‐difluoro‐1,5‐dienes that can be converted into a range of medicinally relevant fluorinated compounds. Mechanistic studies reveal a key role of the catalytically generated LiCl by assisting
Martín Piñeiro‐Suárez +3 more
wiley +1 more source
Carbon Energy, EarlyView.We propose a novel bottom‐up synthesis method for 2D nanocarbon films using a sonochemical deposition process at room temperature and under atmospheric pressure. This process uniformly coats a Zn foil with unique 2D nanocarbon films, termed Leopard‐patterned graphene (Leo‐G).
Dong Il Kim +9 more
wiley +1 more source
Steric Restraints in Redox‐Active Guanidine Ligands and Their Impact on Coordination Chemistry
Chemistry – A European Journal, EarlyView.One carbon makes the difference; a diguandine with an ethylene bridge does not coordinate metals, while a diguanidine with a propylene bridge coordinates to a variety of metals. In this work, we report the synthesis and coordination chemistry of the first cyclic diguanidino‐benzene ligands and compare their coordination chemistry with that of open ...
Eliane Engels +7 more
wiley +1 more source
Robust Decision Trees Against Adversarial Examples
, 2019 Although adversarial examples and model robustness have been extensively studied in the context of linear models and neural networks, research on this issue in tree-based models and how to make tree-based models robust against adversarial examples is ...
Boning, Duane +3 more
core
Proton Conductivities of Stepwise Protonated Imidazole‐Fused Tetraphenylene Derivatives
Chemistry – A European Journal, EarlyView.Proton conducting tetraphenylene molecules (ImTP) containing a imidazole group were controlled by the degree of protonation. By controlling the degree of protonation from neutral ImTP to H1ImTP⁺, H2ImTP2⁺, and H4ImTP⁴⁺, we demonstrated that the balance between intermolecular hydrogen bonding and electrostatic interactions affects structural stability ...
Mu Li +4 more
wiley +1 more source
Finite Larmor radius influence on MHD solitary waves [PDF]
Nonlinear Processes in Geophysics, 2009 MHD solitons are studied in a model where the usual Hall-MHD model is extended to include the finite Larmor radius (FLR) corrections to the pressure tensor. The resulting 4-dimensional set of differential equations is treated numerically.
E. Mjølhus
doaj