Results 41 to 50 of about 166,550 (276)

Skeletal Rearrangements of the C240 Fullerene: Efficient Topological Descriptors for Monitoring Stone–Wales Transformations

open access: yesMathematics, 2020
Stone–Wales rearrangements of the fullerene surface are an uncharted field in theoretical chemistry. Here, we study them on the example of the giant icosahedral fullerene C240 to demonstrate the complex chemical mechanisms emerging on its carbon skeleton.
Denis Sh. Sabirov, Ottorino Ori
doaj   +1 more source

Physical properties of kernels from modern maize hybrids used in Croatia [PDF]

open access: yesJournal of Central European Agriculture, 2020
The physical properties of maize are a result of kernel structure, they indicate chemical properties of the kernel, and hence, its nutritive value. This research aimed to explore the physical traits of kernels of 80 commercial maize hybrids from nine ...
Kristina Kljak   +6 more
doaj   +1 more source

Effects of atmospheric sphericity on stratospheric chemistry and dynamics over Antarctica [PDF]

open access: yes, 2005
Atmospheric sphericity is an important factor that must be considered in order to evaluate an accurate ozone loss rate in the polar stratosphere. The built-in plane-parallel radiative transfer scheme of a nudging chemical transport model (CTM) and an ...
Akiyoshi   +43 more
core   +2 more sources

High-quality nodule analysis in spheroidal graphite cast iron using X-ray micro-computed tomography

open access: yesFracture and Structural Integrity, 2022
This work is a continuation of the studies presented in a recent paper by the authors, where a methodology to obtain different nodule quality categories in spheroidal graphite cast iron, was proposed.
J. C. Toledo   +3 more
doaj   +1 more source

Glass Microspheres Thermo-Deformation Sintering Processes in the Technologies of Obtaining Materials for Underwater Technical Equipment

open access: yesPolish Maritime Research, 2023
In this work, the important scientific and technical problem of creating multifunctional composite materials for shipbuilding and ocean engineering was solved.
Kazymyrenko Yuliia   +2 more
doaj   +1 more source

The Shape of Fluvial Gravels: Insights from Fiji’s Sabeto River

open access: yesGeosciences, 2021
This project aims to re-assess our understanding of the shape of fluvial bedload gravels by drawing together existing information on fluvial gravel shape.
S. J. Gale
doaj   +1 more source

Association of quantitative radiomic shape features with functional outcome after surgery for primary sporadic dorsal spinal meningiomas

open access: yesFrontiers in Surgery, 2023
ObjectiveSpinal meningiomas (SM) account for 25%–46% of all primary spinal tumors and show an excellent long-term disease control in case of complete resection. Therefore, the postoperative functional outcome is of high importance.
Martin Vychopen   +13 more
doaj   +1 more source

Application of Image Analysis for the Identification of Prehistoric Ceramic Production Technologies in the North Caucasus (Russia, Bronze/Iron Age) [PDF]

open access: yes, 2019
The recent advances in microscopy and scanning techniques enabled the image analysis of archaeological objects in a high resolution. From the direct measurements in images, shapes and related parameters of the structural elements of interest can be ...
Milke, Ralf   +3 more
core   +1 more source

Violation of the sphericity assumption and its effect on Type-I error rates in repeated measures ANOVA and multi-level linear models (MLM)

open access: yes, 2017
This study aims to investigate the effects of violations of the sphericity assumption on Type I error rates for different methodical approaches of repeated measures analysis using a simulation approach.
Beauducel, Andre, Haverkamp, Nicolas
core   +2 more sources

Ibuprofen-loaded calcium phosphate granules : combination of innovative characterization methods to relate mechanical strength to drug location [PDF]

open access: yes, 2010
This paper studies the impact of the location of a drug substance on the physicochemical and mechanical properties of two types of calcium phosphate granules loaded with seven different contents of ibuprofen, ranging from 1.75% to 46%.
Ahola   +44 more
core   +3 more sources

Home - About - Disclaimer - Privacy