The Planck-LFI flight model composite waveguides [PDF]
, 2009 The Low Frequency Instrument on board the PLANCK satellite is designed to give the most accurate map ever of the CMB anisotropy of the whole sky over a broad frequency band spanning 27 to 77 GHz.
A Mennella +32 more
core +3 more sources
Analytical Prediction of Optimal Split Ratio for Maximum Torque Per Copper Loss in AFPM Machines
IET Electric Power ApplicationsThe axial flux permanent magnet (AFPM) synchronous machine has advantages of high torque density and high efficiency. In the design process, the ratio of inner to outer diameter, that is, the split ratio, directly affects the electromagnetic performance ...
Lingyun Shao +5 more
doaj +1 more source
Corrosion Behaviors of Copper Exposed to an Urban Atmosphere
International Journal of Electrochemical Science, 2018 Copper was exposed for a total period of six months in an urban atmosphere, Shenyang site of China. The corrosion data of the exposed copper were collected for monthly intervals.
Ye Wan +5 more
doaj +1 more source
Cu $K$-edge Resonant Inelastic X-Ray Scattering in Edge-Sharing Cuprates
, 2007 We present calculations for resonant inelastic x-ray scattering (RIXS) in edge-shared copper oxide systems, such as CuGeO$_{3}$ and Li$_{2}$CuO$_{2}$, appropriate for hard x-ray scattering where the photoexcited electron lies above oxygen 2p and copper ...
B. Moritz +9 more
core +1 more source
ISO efficiency curves of a two-phase hybrid stepping motor [PDF]
, 2010 Stepping motors are used in numerous applications because of their low manufacturing cost and simple speed control. It is well known that their energetic efficiency is low but actual values are typically not available.
Cottyn, Johannes +8 more
core +1 more source
International Journal of Electrochemical Science, 2012 The corrosion behavior of unalloyed copper (99.999% Cu) in freely aerated hydrochloric acid pickling, 0.50 M HCl, solutions and its inhibition by different concentrations of 3-amino-1,2,4-triazole (ATA) and 3-amino-5-mercapto-1,2,4-triazole (AMTA) were ...
El-Sayed M. Sherif
doaj +1 more source
CMOS Transmitter using Pulse-Width Modulation Pre-Emphasis achieving 33dB Loss Compensation at 5-Gb/s [PDF]
, 2005 A digital transmitter pre-emphasis technique is presented that is based on pulse-width modulation, instead of finite impulse response (FIR) filtering. The technique fits well to future high-speed low-voltage CMOS processes.
Klumperink, E.A.M. +3 more
core +3 more sources
Metal deposition of copper and lead bullets in moose harvested in Fennoscandia
Wildlife Society Bulletin, 2017 Fragments from bullets used for moose (Alces alces) hunting contaminate meat, gut piles, and offal and expose humans and scavengers to lead and copper.
Sigbjørn Stokke +2 more
doaj +1 more source
Development of mineralogy-based approaches to study the loss of copper minerals into tailings of scavenger flotation circuit – Part I [PDF]
International Journal of Mining and Geo-EngineeringLoss of copper minerals to tailings of the rougher and scavenger circuits is one of the challenges in copper concentration plants, which reduces the efficiency of the circuit.
Ataallah Bahrami +4 more
doaj +1 more source
Electromagnetic and Mechanical Analysis of High Speed SPM Rotor with Copper Shield [PDF]
, 2017 For high-speed applications, the surface-mounted permanent magnet (SPM) machine is preferred due to its high torque density and efficiency. However, induced eddy currents in the rotor conductive parts result in a loss of efficiency and rotor heating ...
Al-Ani, Mahir +2 more
core +1 more source