Results 31 to 40 of about 3,995,176 (315)

Asynchronous performance analysis of a single-phase capacitor-start, capacitor-run permanent magnet motor [PDF]

open access: yes, 2005
This work presents a detailed analysis of the asynchronous torque components (average cage, magnet braking torque and pulsating) for a single-phase capacitor-start, capacitor-run permanent magnet motor.
Miller, T.J.E.   +5 more
core   +1 more source

Abrupt phase change in graphene-gold spr-based biosensor

open access: yesMaterials Research Express, 2020
The performance of surface plasmon resonance (SPR) sensors can be different depending on which characteristic of the SPR sensor the amplitude or the phase is monitored.
Nasrin Bouzari   +3 more
doaj   +1 more source

The Identity and Mineral Composition of Natural, Plant-Derived and Artificial Sweeteners

open access: yesMolecules, 2023
The qualitative X-ray phase analysis of natural and artificial food sweeteners was applied to trace the authenticity of such food additives. The mineral composition of different sweeteners commonly added to foods was studied to estimate their mineral ...
Anna Leśniewicz   +3 more
doaj   +1 more source

Phase synchronization analysis by assessment of the phase difference gradient

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 2009
Phase synchronization is an important phenomenon of nonlinear dynamics and has recently received much scientific attention. In this work a method for identifying phase synchronization epochs is described which focuses on estimating the gradient of segments of the generalized phase differences between phase slips in an experimental time series. In phase
Vejmelka, M. (Martin)   +2 more
openaire   +3 more sources

Identification of a 7-phase claw-pole starter-alternator for a micro-hybrid automotive application [PDF]

open access: yes, 2008
This paper deals with the identification of a new high power starter-alternator system, using both: a Finite Element Method (FEM) modeling and an experimental vector control.
BOUSCAYROL, Alain   +14 more
core   +1 more source

Intermetallic phases and element distribution in carbon-free PM high-speed steels of the Fe-Co-Mo type

open access: yesEuropean Journal of Materials
In contrast to classical carbidic high-speed steels, carbon-free grades of the type Fe-Co-Mo(-W) obtain their strength by precipitation hardening through nm-size intermetallic µ phases; for example, (Fe,Co)7Mo6; coa­rser µ phases, in the low µm range ...
Herbert Danninger   +3 more
doaj   +1 more source

Effect of Heat Treatment on Microstructure and Mechanical Properties of High-Strength Steel for in Hot Forging Products

open access: yesMetals, 2021
High-strength steel is widely used in hot forging products for application to the oil and gas industry because it has good mechanical properties under severe environment.
Moonseok Kang   +9 more
doaj   +1 more source

Early life exposure to farm animals and symptoms of asthma, rhinoconjunctivitis and eczema : an ISAAC Phase Three study [PDF]

open access: yes, 2012
We are grateful to the children and parents who willingly cooperated and participated in ISAAC Phase Three and the coordination and assistance by the school staff is sincerely appreciated.
Brunekreef, Bert   +6 more
core   +1 more source

Structural and Phase Characteristics of LaNi5-Based Materials Modified with Ti, Mn, and Co

open access: yesAlloys
In this work, the results of the structural and phase state of LaNi5-based alloys modified with Ti, Mn, and Co elements, obtained by mechanical alloying and subsequent spark plasma sintering, are presented.
Arman Miniyazov   +7 more
doaj   +1 more source

Thermal Decomposition and Kinetics of Pentlandite-Bearing Ore Oxidation in the Air Atmosphere

open access: yesMetals, 2021
The roasting of sulfide ores and concentrates is one of the most important steps in pyrometallurgical metal production from primary raw materials, due to the necessity of excess sulfur removal, present in the virgin material.
Kristina Božinović   +6 more
doaj   +1 more source

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