Results 41 to 50 of about 275,010 (320)

The role of torsional Alfven waves in coronal heating [PDF]

open access: yes, 2009
In the context of coronal heating, among the zoo of MHD waves that exist in the solar atmosphere, Alfven waves receive special attention. Indeed, these waves constitute an attractive heating agent due to their ability to carry over the many different ...
Antiochos   +40 more
core   +1 more source

Packing Activated Carbons into Dense Graphene Network by Capillarity for High Volumetric Performance Supercapacitors

open access: yesAdvanced Science, 2019
Supercapacitors are increasingly in demand among energy storage devices. Due to their abundant porosity and low cost, activated carbons are the most promising electrode materials and have been commercialized in supercapacitors for many years.
Pei Li   +7 more
doaj   +1 more source

The Role of the Additive Manufacturing Process Parameters in the Shaping of the Surface Geometric Structure During Micro-Milling

open access: yesJournal of Machine Engineering, 2020
The article presents the results of measurements of the geometric structure of the surface after micro end-milling. In the experiments, coated monolithic super micrograin cemented carbide micro end mills with 2 flutes were employed.
Marta KRAWCZYK   +5 more
doaj   +1 more source

Tin-graphene tubes as anodes for lithium-ion batteries with high volumetric and gravimetric energy densities. [PDF]

open access: yes, 2020
Limited by the size of microelectronics, as well as the space of electrical vehicles, there are tremendous demands for lithium-ion batteries with high volumetric energy densities.
Kong, Dejia   +12 more
core  

Diagnosing the time-dependence of active region core heating from the emission measure: I. Low-frequency nanoflares [PDF]

open access: yes, 2012
Observational measurements of active region emission measures contain clues to the time-dependence of the underlying heating mechanism. A strongly non-linear scaling of the emission measure with temperature indicates a large amount of hot plasma relative
Bradshaw   +23 more
core   +2 more sources

High Volumetric Energy and Power Density Li2TiSiO5 Battery Anodes via Graphene Functionalization [PDF]

open access: yesMatter, 2020
Summary The realization of lithium-ion battery (LIB) anodes with high volumetric energy densities and minimal Li plating at high rates remains a key challenge for emerging technologies, including electric vehicles and grid-level energy storage. Here, we present graphene-functionalized Li2TiSiO5 (G-LTSO) as a high volumetric energy and power density ...
Jin-Myoung Lim   +9 more
openaire   +2 more sources

On the use of the proximity force approximation for deriving limits to short-range gravitational-like interactions from sphere-plane Casimir force experiments [PDF]

open access: yes, 2009
We discuss the role of the proximity force approximation in deriving limits to the existence of Yukawian forces - predicted in the submillimeter range by many unification models - from Casimir force experiments using the sphere-plane geometry.
Dalvit, Diego A. R., Onofrio, Roberto
core   +3 more sources

High gravimetric and volumetric energy densities enabled by 3D-printed thick anode

open access: hybridJournal of Energy Storage
Jean Pierre Mwizerwa   +5 more
openalex   +2 more sources

Selective Nitridation Crafted a High‐Density, Carbon‐Free Heterostructure Host with Built‐In Electric Field for Enhanced Energy Density Li–S Batteries

open access: yesAdvanced Science, 2022
To achieve both high gravimetric and volumetric energy densities of lithium–sulfur (Li–S) batteries, it is essential yet challenging to develop low‐porosity dense electrodes along with diminishment of the electrolyte and other lightweight inactive ...
Hongmei Wang   +8 more
doaj   +1 more source

Activation volume of selected liquid crystals in the density scaling regime [PDF]

open access: yes, 2017
In this paper, we demonstrate and thoroughly analyze the activation volumetric properties of selected liquid crystals in the nematic and crystalline E phases in comparison with those reported for glass-forming liquids.
Grzybowski, A.   +3 more
core   +2 more sources

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