Results 21 to 30 of about 110,457 (260)

Novel Insight into the Concept of Favorable Combination of Electrodes in High Voltage Supercapacitors: Toward Ultrahigh Volumetric Energy Density and Outstanding Rate Capability

open access: yesGlobal Challenges, 2022
Most of the biomass‐derived carbon‐based supercapacitors using organic electrolytes exhibit very low energy density due to their low operating potential range between 2.7 and 3.0 V. A novel insight into the concept of the different porous architecture of
George Elsa   +3 more
doaj   +1 more source

Experimental study of water migration characteristics in compacted loess subjected to rainfall infiltration.

open access: yesPLoS ONE, 2022
In order to study the effect of the rainfall infiltration on water migration in compacted loess, a model device was developed for testing water migration in the soil under rainfall conditions.
Shibin Zhang   +4 more
doaj   +2 more sources

Volumetric breast density estimation from full-field digital mammograms: a validation study.

open access: yesPLoS ONE, 2014
ObjectivesTo objectively evaluate automatic volumetric breast density assessment in Full-Field Digital Mammograms (FFDM) using measurements obtained from breast Magnetic Resonance Imaging (MRI).Material and methodsA commercially available method for ...
Albert Gubern-Mérida   +5 more
doaj   +1 more source

Densely Packed and Highly Ordered Carbon Flower Particles for High Volumetric Performance

open access: yesSmall Science, 2021
Carbon materials with high specific surface areas are ideal support materials for many applications. However, high specific surface area and large pore volume usually render them with low bulk density, which is undesirable for applications aiming at high
Huaxin Gong   +5 more
doaj   +1 more source

Endplate volumetric bone mineral density biomechanically matched interbody cage

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
Disc degenerative problems affect the aging population, globally, and interbody fusion is a crucial surgical treatment. The interbody cage is the critical implant in interbody fusion surgery; however, its subsidence risk becomes a remarkable clinical ...
Yuanzhi Weng   +10 more
doaj   +1 more source

Photon surfaces for robust, unbiased volumetric density estimation [PDF]

open access: yesACM Transactions on Graphics, 2019
We generalize photon planes to photon surfaces : a new family of unbiased volumetric density estimators which we combine using multiple importance sampling. To derive our new estimators, we start with the extended path integral which duplicates the vertex at the end of the camera and photon subpaths and couples them
Xi Deng   +3 more
openaire   +1 more source

The Proof‐of‐Concept of Anode‐Free Rechargeable Mg Batteries

open access: yesAdvanced Science, 2023
The desperate pursuit of high gravimetric specific energy leads to the ignorance of volumetric energy density that is one of the basic requirements for batteries.
Minglei Mao   +5 more
doaj   +1 more source

The variability of selected properties of beech (Fagus sylvatica L.).

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2007
Variability of ring width, wood density and swelling in beech from two different areas was analysed. The variability of each property was described along the stem radius. The analysis proved that the ring width decreased in direction from the pith to the
Vladimír Gryc   +2 more
doaj   +1 more source

Correlations of soybean yield with soil porosity and bulk density of an Oxisol

open access: yesPesquisa Agropecuária Tropical, 2018
The spatial variability of soil physical attributes is important to indicate management practices that best suit agricultural areas. This study aimed to analyze spatial correlations between soybean grain yield and soil mass-volume relationships, in order
Sérgio Ricardo Lima Negro   +4 more
doaj   +1 more source

BASIC DENSITY AND RETRACTIBILITY OF WOOD CLONES OF THREE Eucalyptus SPECIES

open access: yesCiência Florestal, 2010
Among the planted forests that supply the national wood industry, the genus Eucalyptus has become the most important, due to its fast growth, ease of large scale planting and variability of wood use.
Djeison Cesar Batista   +2 more
doaj   +1 more source

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