Results 61 to 70 of about 489,424 (343)

Evaluation of mismatch power loss in a PV string composed of series-connected modules: Theory versus experiment

open access: yesAin Shams Engineering Journal
Ground-installed PV power-systems are usually built in parallel-rows; each is composed of series-connected modules. With time, some modules got-polluted or −shaded differently. On damage, some modules may be replaced by others of different ratings.
Reham Kamal   +2 more
doaj   +1 more source

Absorption spectroscopy of complex rare earth ion doped hybrid materials over a broad wavelength range [PDF]

open access: yes, 2005
In the present work we applied a measurement setup to determine several relevant properties of rare-earth doped nanoparticles dispersed in polymer slab waveguides in a single absorption measurement: background absorption of the polymer host material ...
Dekker, R.   +4 more
core   +3 more sources

Sol–Gel Derived Polymer Precursors for Stereolithography of ZrC

open access: yesAdvanced Engineering Materials, EarlyView.
ZrC is a critical material target for extreme temperature conditions. This report describes a protocol for preparing ZrC ceramics via stereolithography and examines the impact of the polymer matrix on carbothermal reduction and mechanical stability of 3D printed ZrC.
Charles J. Rafalko   +2 more
wiley   +1 more source

Targeting engineering synchronization in chaotic systems

open access: yes, 2015
A method of targeting engineering synchronization states in two identical and mismatch chaotic systems is explained in details. The method is proposed using linear feedback controller coupling for engineering synchronization such as mixed synchronization,
Bhowmick, Sourav K., Ghosh, Dibakar
core   +1 more source

Corrosion and Process Analysis of a Preoxidized MgO Recyclate‐Based Cermet Anode in Laboratory‐Scale Na‐Cryolite Molten Salt Electrolysis of Aluminum at 1000°C

open access: yesAdvanced Engineering Materials, EarlyView.
EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk   +7 more
wiley   +1 more source

Potential predictors for CDX2 expression loss and mismatch repair deficiency in colorectal cancer

open access: yesPathology and Oncology Research, 2023
CDX2 expression loss is commonly associated with mismatch repair deficiency (dMMR) in colorectal cancer (CRC). However, there are only a few studies that have attempted to correlate CDX2 expression loss with specific MMR genes (MLH1, MSH2, MSH6, PMS2 ...
Ivan Vlahović   +4 more
doaj   +1 more source

Generating entanglement between quantum dots with different resonant frequencies based on Dipole Induced Transparency

open access: yes, 2008
We describe a method for generating entanglement between two spatially separated dipoles coupled to optical micro-cavities. The protocol works even when the dipoles have different resonant frequencies and radiative lifetimes.
D. Walls   +3 more
core   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

open access: yesAdvanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold   +2 more
wiley   +1 more source

Optical Properties of BN in the cubic and in the layered hexagonal phases

open access: yes, 2001
Linear optical functions of cubic and hexagonal BN have been studied within first principles DFT-LDA theory. Calculated energy-loss functions compare well with experiments and previous theoretical results both for h-BN and for c-BN.
Cappellini, Giancarlo   +3 more
core   +1 more source

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