Thermal Stability of Azurite and Malachite in Relation to the Formation of Mediaeval Glass and Glazes [PDF]
, 2002 Azurite and malachite have been extensively used as pigments in ancient and medieval manuscripts, glasses and glazes. The thermal stability of naturally occurring azurite and malachite was determined using a combination of controlled rate thermal ...
Ding, Zhe +3 more
core +2 more sources
Maximum Efficiency per Torque Control of Permanent-Magnet Synchronous Machines
Applied Sciences, 2016 High-efficiency permanent-magnet synchronous machine (PMSM) drive systems need not only optimally designed motors but also efficiency-oriented control strategies. However, the existing control strategies only focus on partial loss optimization.
Qingbo Guo +4 more
doaj +1 more source
Zinc containing dental fixative causing copper deficiency myelopathy [PDF]
, 2017 A 62-year-old male, previously well, was referred to neurology clinic following 6 months history of worsening lower limbs instability, paraesthesia, pain and weakness rendering him housebound.
Abdul-Rahim, Azmil H. +2 more
core +1 more source
Modular Rotor Single Phase Field Excited Flux Switching Machine with Non-Overlapped Windings
Energies, 2019 This paper aims to propose and compare three new structures of single-phase field excited flux switching machine for pedestal fan application. Conventional six-slot/three-pole salient rotor design has better performance in terms of torque, whilst also ...
Lutf Ur Rahman +7 more
doaj +1 more source
Effect of Magnetic Properties of Magnetic Composite Tapes on Motor Losses
Energies, 2022 Alternating current (AC) copper losses in motors increase with carrier frequency of the pulse width modulation (PWM) and are further increased by leakage flux of the permanent magnet. Therefore, AC copper losses increase with motor speed.
Ryo Yoshida +9 more
doaj +1 more source
High quality graphene synthesized by atmospheric pressure CVD on copper foil [PDF]
, 2013 Graphene was synthesized at 1000°C by Atmospheric Pressure Chemical Vapor Deposition on copper foil from methane diluted in argon and hydrogen. The influence of the main synthesis parameters was studied on 2x2 cm2 foils in order to obtain continuous ...
Alexandru Delamoreanu +26 more
core +4 more sources
Results in Engineering, 2022 High-resistance connection fault can result in the increasing of power loss and the rise of heat, so the electric machine drive system possibly can be damaged.
Fan Chen +4 more
doaj +1 more source
Semi-Empirical Model for Precise Analysis of Copper Losses in High-Frequency Transformers
IEEE Access, 2018 Accurately estimating the copper losses is essential for the elaborate design of high-frequency (HF) transformers used in high-power isolated dc-dc converters.
Bin Chen, Lin Li
doaj +1 more source
Measurements of Antenna Surface for Millimeter-Wave Space Radio Telescope [PDF]
, 2010 In the construction of a space radio telescope, it is essential to use materials with a low noise factor and high mechanical robustness for the antenna surface.
Doi, Akihiro +3 more
core +1 more source
A differential genome-wide transcriptome analysis : impact of cellular copper on complex biological processes like aging and development [PDF]
, 2012 The regulation of cellular copper homeostasis is crucial in biology. Impairments lead to severe dysfunctions and are known to affect aging and development.
Grimm, Carolin +3 more
core +3 more sources