Short relaxation times but long transient times in both simple and complex reaction networks [PDF]
When relaxation towards an equilibrium or steady state is exponential at large times, one usually considers that the associated relaxation time $\tau$, i.e., the inverse of that decay rate, is the longest characteristic time in the system.
Henry, Adrien, Martin, Olivier
core +3 more sources
CT Saturation Detection with Calculation of Instantaneous Impedance of Magnetic Branch Using FILT [PDF]
Accurate indiscrimination of CT saturation can be caused mal-operation of protection systems. Due to nonlinear and loss characteristic behavior of CTs, it is necessary to use a numerical method to detect CT saturation, accurately.
Alireza Fallahi +2 more
doaj +1 more source
Modeling the effect of soil meso- and macropores topology on the biodegradation of a soluble carbon substrate [PDF]
Soil structure and interactions between biotic and abiotic processes are increasingly recognized as important for explaining the large uncertainties in the outputs of macroscopic SOM decomposition models.
Chenu, Claire +9 more
core +5 more sources
Improved rotor position estimation by signal injection in brushless AC motors, accounting for cross-coupling magnetic saturation [PDF]
The paper presents an improved signal injection- based sensorless control method for permanent magnet brushless AC (BLAC) motors, accounting for the influence of cross-coupling magnetic saturation between the d- and q-axes.
Bingham, Chris +4 more
core +1 more source
Polymeric foams as the matrix of voltammetric sensors for the detection of catechol, hydroquinone, and their mixtures [PDF]
Producción CientíficaPorous electrodes based on polymethylmethacrylate and graphite foams (PMMA_G_F) have been developed and characterized. Such devices have been successfully used as voltammetric sensors to analyze catechol, hydroquinone, and their ...
Fernández Blanco, C. +4 more
core +1 more source
Imaging spontaneous imbibition in full Darcy‐scale samples at pore‐scale resolution by fast X‐ray tomography [PDF]
Spontaneous imbibition is a process occurring in a porous medium which describes wetting phase replacing nonwetting phase spontaneously due to capillary forces.
Bartels, W. B. +9 more
core +2 more sources
Current transformer (CT) saturation is one of the significant problems for protection engineers. If CT saturation is not tackled properly, it can cause a disastrous effect on the stability of the power system, and may even create a complete blackout.
Muhammad Ali +3 more
doaj +1 more source
Despite the fact that the problem of saturation of current transformers (CT) has been known for a long time, it has not lost its relevance now. Cases of malfunctioning as a result of oversaturation of CT are still recorded today.
P. Shagimardanov
doaj +1 more source
Ischaemic strokes in patients with pulmonary arteriovenous malformations and hereditary hemorrhagic telangiectasia: associations with iron deficiency and platelets. [PDF]
BackgroundPulmonary first pass filtration of particles marginally exceeding ∼7 µm (the size of a red blood cell) is used routinely in diagnostics, and allows cellular aggregates forming or entering the circulation in the preceding cardiac cycle to lodge ...
AD Kjeldsen +83 more
core +3 more sources
Experimental Study on the Shear Band of Methane Hydrate-Bearing Sediment
The occurrence of a shear band is often thought as the precursor of failure. To study the initiation of shear banding in gas hydrate-bearing sediments, two groups of triaxial compression tests combined with a CT (computer tomography) scan were conducted ...
Xiaobing Lu +5 more
doaj +1 more source

