Results 71 to 80 of about 31,005 (221)

X-ray computed microtomography of Megachirella wachtleri [PDF]

open access: yesScientific Data, 2018
AbstractUnderstanding the origin and early evolution of squamates has been a considerable challenge given the extremely scarce fossil record of early squamates and their poor degree of preservation. In order to overcome those limitations, we conducted high-resolution X-ray computed tomography (CT) studies on the fossil reptile Megachirella wachtleri ...
Simões, Tiago R.   +8 more
openaire   +2 more sources

Dry‐Processed Graphite Electrodes Enabling Ultra‐High Areal Capacity and Stable Fast‐Charging Performance

open access: yesCarbon Energy, EarlyView.
A robust fibrillated network formed by high‐molecular‐weight PTFE enables uniform Li+ flux and plating‐free behavior in dry‐processed graphite anodes, achieving ultra‐thick electrodes (10 mAh cm−2 as representative, extended to 30 mAh cm−2) with high volumetric energy density and stable full‐cell performance.
Yewon Kwon   +5 more
wiley   +1 more source

Challenges in imaging and predictive modeling of rhizosphere processes [PDF]

open access: yes, 2016
Background Plant-soil interaction is central to human food production and ecosystem function. Thus, it is essential to not only understand, but also to develop predictive mathematical models which can be used to assess how climate and soil management ...
Carminati, A.   +6 more
core   +5 more sources

Resonance‐induced restoration of rock permeability degraded by heavy components of crude oil

open access: yesDeep Underground Science and Engineering, EarlyView.
Resonance‐induced changes occur in filtration properties of sedimentary rocks in crude paraffin oil flow under acoustic vibrations. Experimental data on (a) pressure drop; (b) permeability; (c) pressure at the rock inlet; and (d) pressure at the rock outlet are presented.
Evgenii Riabokon   +6 more
wiley   +1 more source

A Reproducible SEM Surface Imaging Protocol for Monitoring Microstructural Changes During Gas–Rock Interactions

open access: yesGreenhouse Gases: Science and Technology, EarlyView.
ABSTRACT Reliable characterization of mineralogical and textural changes in rock samples is essential for understanding fluid–rock interactions, particularly in experimental studies simulating subsurface conditions. This study presents a reproducible protocol for scanning electron microscopy (SEM) analysis of rock surfaces before and after exposure to ...
Berta Ordóñez‐Casado   +3 more
wiley   +1 more source

Comparison of the Canal Transportation and Centering Ability of TruNatomy, WaveOne Gold and Protaper Ultimate: An Ex Vivo Study in Human Maxillary Molars

open access: yesEuropean Endodontic Journal
Objective: Effective disinfection and preservation of the root canal anatomy are critical goals in modern endodontics. Nickel-titanium (NiTi) instruments have enhanced canal shaping by offering flexibility and improved performance, particularly in ...
Gilberto Ribeiro   +3 more
doaj   +1 more source

Realistic CT image simulation tools for laboratory based X-ray CT at UGCT [PDF]

open access: yes, 2013
In laboratory based X-ray Computed Tomography (CT), the grey values in the resulting CT image depend on several scanning conditions such as the emitted spectrum, the response characteristics of the detector and beam filtration.
Brabant, Loes   +3 more
core  

Three-dimensional distribution of primary melt inclusions in garnets by X-ray microtomography [PDF]

open access: yes, 2018
open6X-ray computed microtomography (X-mu CT) is applied here to investigate in a non-invasive way the three-dimensional (3D) spatial distribution of primary melt and fluid inclusions in gamets from the metapeitic enclaves of El Hoyazo and from the ...

core   +1 more source

Mineral‐targeted alkaline phosphatase improves bone graft‐mediated alveolar bone defect healing in mice

open access: yesJournal of Periodontology, EarlyView.
Abstract Background Alveolar bone loss challenges tooth retention and implant placement. Freeze‐dried bone allograft (FDBA) is widely used for alveolar ridge preservation but has limitations in resorption rate and healing time. In this proof‐of‐concept study, we tested whether pro‐mineralization enzyme, tissue‐nonspecific alkaline phosphatase (TNAP ...
Kedith Sawangsri   +4 more
wiley   +1 more source

Technique for bone volume measurement from human femur head samples by classification of micro-CT image histograms

open access: yesAnnali dell'Istituto Superiore di Sanità, 2013
INTRODUCTION: Micro-CT analysis is a powerful technique for a non-invasive evaluation of the morphometric parameters of trabecular bone samples. This elaboration requires a previous binarization of the images. A problem which arises from the binarization
Franco Marinozzi   +6 more
doaj   +1 more source

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