Results 61 to 70 of about 529,687 (248)
International Journal of Adaptive Control and Signal Processing, EarlyView.This article proposes a convergent adaptive observer for a damped wave PDE and an infinite‐dimensional ODE coupled in cascade using sampled‐in‐space ODE state measurements. The proposed observer estimates the distributed states of the PDE and ODE along with unknown PDE parameters and spatial input.
Zehor Belkhatir +2 more
wiley +1 more source
A Low Power Voltage Sag Compensator
Eletrônica de Potência, 2006 The increasing use of voltage variation sensitive loads in industrial applications nowadays has brought a real concern about interruption costs and damages in complex production lines. This paper presents a power-electronic–based device which compensates
Fernando O. Martinz +13 more
doaj +1 more source
Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys
Advanced Engineering Materials, EarlyView.This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa +9 more
wiley +1 more source
LAPAROSCOPIC MANAGEMENT OF ADNEXAL MASSES IN THE REPRODUCTIVE AGE GROUP [PDF]
Perspectives In Medical Research, 2019 Background: Laparoscopy has become an accepted and standard approach in the management of adnexal masses. Material and Methods: We performed a retrospective record based cross sectional study over a 4 year reriod of 90 cases of adnexal masses which ...
Satyaprabha Siripurapu1, Vivekananda A2, Mythreai3, Greeshma4, Srilatha3
doaj
Eletrônica de Potência, 2006 This paper presents an optimized Half-Cycle Power Control for Direct Water Heater with reduced harmonic content and flicker control. The method is presented, as well as results of theoretical analysis supported by experimental results.
Wilson Komatsu +2 more
doaj +1 more source
Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing
Advanced Engineering Materials, EarlyView.The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai +6 more
wiley +1 more source
Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales
Advanced Engineering Materials, EarlyView.Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik +7 more
wiley +1 more source
Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy
Advanced Engineering Materials, EarlyView.A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang +10 more
wiley +1 more source
Convergent Synthesis of Two Fluorescent Ebselen-Coumarin Heterodimers
Pharmaceuticals, 2016 The organo-seleniumdrug ebselen exhibits a wide range of pharmacological effects that are predominantly due to its interference with redox systems catalyzed by seleno enzymes, e.g., glutathione peroxidase and thioredoxin reductase.
Jim Küppers +5 more
doaj +1 more source