Results 21 to 30 of about 1,231 (130)

Energy‐Saving Pathways for Thermoelectric Nanomaterial Synthesis: Hydrothermal/Solvothermal, Microwave‐Assisted, Solution‐Based, and Powder Processing

open access: yesAdvanced Science, Volume 9, Issue 25, September 5, 2022., 2022
Soft chemistry techniques such as hydrothermal/solvothermal, microwave‐assisted, solution‐based as well as powder‐based techniques are energy‐saving synthesis techniques, which can be utilized for thermoelectric materials for example. Understanding the underlying mechanism/factors behind such techniques is crucial for high product yield, high product ...
Nagaraj Nandihalli   +2 more
wiley   +1 more source

[Retracted] Simulation of the Electro‐Superconducting System Based on the H Equation

open access: yesJournal of Chemistry, Volume 2022, Issue 1, 2022., 2022
In order to reduce the levitation energy consumption and increase the levitation air gap, a simulation study of the electrochemistry superconducting magnetic levitation system based on the H equation is proposed. Through finite element simulation, the magnetic field distribution, current distribution, force, and other characteristics of the magnetic ...
Jun Zhang, Ajay Rakkesh R
wiley   +1 more source

Subcritical crack growth in hard alloys under cyclic loading

open access: yesFatigue &Fracture of Engineering Materials &Structures, Volume 44, Issue 2, Page 349-365, February 2021., 2021
Abstract In this work, the subcritical crack growth in Fe‐, Ni‐ and Co‐base hard alloys was investigated. Specimens were cyclically loaded in the pressure threshold range until a ring crack resulted as a failure criterion. Crack propagation along with the individual microstructural constituents and the associated resistance of the individual materials ...
Lukas Brackmann   +3 more
wiley   +1 more source

Vibration serviceability of footbridges under human-induced excitation : a literature review [PDF]

open access: yes, 2004
Increasing strength of new structural materials and longer spans of new footbridges, accompanied with aesthetic requirements for greater slenderness, are resulting in more lively footbridge structures.
Pavić, Aleksandar   +2 more
core   +3 more sources

Design Model of Null-Flux Coil Electrodynamic Suspension for the Hyperloop

open access: yesEnergies, 2020
The Hyperloop has been developed using various technologies to reach a maximum speed of 1200 km/h. Such technologies include magnetic levitation technologies that are suitable for subsonic driving.
Jungyoul Lim   +5 more
doaj   +1 more source

Research and technological prospects of applications for superconducting electrodynamic suspension

open access: yes机车电传动, 2023
Compared to traditional transportation methods, high-speed maglev trains have many advantages. On a world-wide scale, two modes of maglev systems, electromagnetic suspension (EMS) and electrodynamic suspension (EDS), have emerged mature through years of ...
YU Qingsong   +5 more
doaj  

Standing-wave-excited multiplanar fluorescence in a laser scanning microscope reveals 3D information on red blood cells [PDF]

open access: yes, 2014
Standing-wave excitation of fluorescence is highly desirable in optical microscopy because it improves the axial resolution. We demonstrate here that multiplanar excitation of fluorescence by a standing wave can be produced in a single-spot laser ...
Amor, Rumelo   +3 more
core   +2 more sources

Technology variation vs. R&D uncertainty: What matters most for energy patent success? [PDF]

open access: yes, 2013
R&D is an uncertain activity with highly skewed outcomes. Nonetheless, most recent empirical studies and modeling estimates of the potential of technological change focus on the average returns to research and development (R&D) for a composite technology
Fisher-Vanden, Karen   +3 more
core   +1 more source

Zeolite-dye micro lasers [PDF]

open access: yes, 1998
We present a new class of micro lasers based on nanoporous molecular sieve host-guest systems. Organic dye guest molecules of 1-Ethyl-4-(4-(p-Dimethylaminophenyl)-1,3-butadienyl)-pyridinium Perchlorat were inserted into the 0.73-nm-wide channel pores of ...
Abraham, M.   +6 more
core   +2 more sources

Application of hydrophobic fluorinated silicon oxide nanoparticle coating on electrodynamic screen (EDS) films for enhancing self-cleaning function of solar collectors [PDF]

open access: yes, 2020
Optical surfaces, which are exposed to outdoor environmental conditions, are susceptible to dust deposition. Sunlight incident on the surface of photovoltaic (PV) modules is attenuated by the dust layer accumulation on the front surface of the modules ...
Guo, Yuchun
core  

Home - About - Disclaimer - Privacy