An asynchronous parallel multisplitting nonlinear Gauss-Seidel iterative method is established for the particularly structured system of nonlinear equations Aφ(x) + Bφ(x) = bwith A,B∈(R^n) φ,φtR^n→R^n being diag...An asynchronous parallel multisplitting nonlinear Gauss-Seidel iterative method is established for the particularly structured system of nonlinear equations Aφ(x) + Bφ(x) = bwith A,B∈(R^n) φ,φtR^n→R^n being diagonal mappings and b ∈ R^n, and the global convergence of it isproved.展开更多
The formation of ceramic coatings on metal substrate by cathodic electrolytic deposition (CELD) has received more attention in recent years. But only thin filmscan be prepared via CELD. Yttrium stabilized zirconia (YS...The formation of ceramic coatings on metal substrate by cathodic electrolytic deposition (CELD) has received more attention in recent years. But only thin filmscan be prepared via CELD. Yttrium stabilized zirconia (YSZ) ceramic coatings were deposited on FeCrAI alloy by a novel technique--cathodic micro-arc electrodeposition (CMED).The result shows that, when a high pulse electric field is applied to the cathode which was pre-deposited with a thin YSZ film, dielectric breakdown occurs and micro-arc discharges appear. Coatings with reasonably thickness of-300μm and crystalline structure can be deposited on the cathode by utilizing the energy of the micro-arc. The thickness of the as-deposited coating is dominated by the voltage and the frequency. Y2O3 is co-deposited with ZrO2 when Y(NO3)3 was added to the electrolyte, which stabilize t-phase, t′-phase and c-phase of ZrO2 at room temperature. The amount of the m-ZrO2 in the coating is diminished by increasing the concentration of Y(NO3)3 in the electrolyte.This report describes the processing of CMED and studies the microstructure of the deposited YSZ coatings.展开更多
A class ofparallel nonlinear multisplitting AOR methods is set upby directly ltisplittingthe nonlinear mapping F:D C Rn、R”for solving the nonlinear system of equationsF(x)= 0.The different choices of the relaxati...A class ofparallel nonlinear multisplitting AOR methods is set upby directly ltisplittingthe nonlinear mapping F:D C Rn、R”for solving the nonlinear system of equationsF(x)= 0.The different choices of the relaxation par。ters c。 yield all the kn。n and a lotof new rel8Xatlon methods as well as a M of new relaxatlon parallel nonlinear multisplittingmethods.Thetwrvsided approximation properties and th IMuences on convergence Mmthe relaxatlon parameters about the new methods are shown,and the sufficient conditionsguaranteeing the methods to converge globally are discussed.FlnallL aht ofnumericalresultsshow that the methods are feasible and efficient.展开更多
文摘An asynchronous parallel multisplitting nonlinear Gauss-Seidel iterative method is established for the particularly structured system of nonlinear equations Aφ(x) + Bφ(x) = bwith A,B∈(R^n) φ,φtR^n→R^n being diagonal mappings and b ∈ R^n, and the global convergence of it isproved.
文摘The formation of ceramic coatings on metal substrate by cathodic electrolytic deposition (CELD) has received more attention in recent years. But only thin filmscan be prepared via CELD. Yttrium stabilized zirconia (YSZ) ceramic coatings were deposited on FeCrAI alloy by a novel technique--cathodic micro-arc electrodeposition (CMED).The result shows that, when a high pulse electric field is applied to the cathode which was pre-deposited with a thin YSZ film, dielectric breakdown occurs and micro-arc discharges appear. Coatings with reasonably thickness of-300μm and crystalline structure can be deposited on the cathode by utilizing the energy of the micro-arc. The thickness of the as-deposited coating is dominated by the voltage and the frequency. Y2O3 is co-deposited with ZrO2 when Y(NO3)3 was added to the electrolyte, which stabilize t-phase, t′-phase and c-phase of ZrO2 at room temperature. The amount of the m-ZrO2 in the coating is diminished by increasing the concentration of Y(NO3)3 in the electrolyte.This report describes the processing of CMED and studies the microstructure of the deposited YSZ coatings.
文摘A class ofparallel nonlinear multisplitting AOR methods is set upby directly ltisplittingthe nonlinear mapping F:D C Rn、R”for solving the nonlinear system of equationsF(x)= 0.The different choices of the relaxation par。ters c。 yield all the kn。n and a lotof new rel8Xatlon methods as well as a M of new relaxatlon parallel nonlinear multisplittingmethods.Thetwrvsided approximation properties and th IMuences on convergence Mmthe relaxatlon parameters about the new methods are shown,and the sufficient conditionsguaranteeing the methods to converge globally are discussed.FlnallL aht ofnumericalresultsshow that the methods are feasible and efficient.
