Results 11 to 20 of about 10,330,061 (78)

Formation control of nonholonomic mobile robots: the virtual structure approach [PDF]

open access: yes, 2012
PhDIn recent years, there has been a considerable growth in applications of multi-robot systems as opposed to single-robot systems. This thesis presents our proposed solutions to a formation control problem in which mobile robots are required to ...
Sadowska, Anna Danuta
core   +4 more sources

Dielectric Study on Supramolecular Gels by Fiber Structure Formation from Low-Molecular-Weight Gelator/Water Mixtures

open access: yesGels, 2023
There are various types of gel materials used in a wide range of fields, and their gelation mechanisms are extremely diverse. Furthermore, in the case of hydrogels, there exist some difficulties in understanding complicated molecular mechanisms ...
Kenta Shimizu   +5 more
doaj   +1 more source

Strengthening Thin-Walled Knives with Nitrogen Plasma

open access: yesИнженерные технологии и системы, 2021
Introduction. The completed developments are aimed at creating a new technology for increasing the wear resistance of a thin-walled instrument of complex configuration made of steel 65G for cutting beets at sugar enterprises.
Tamara S. Skoblo   +5 more
doaj   +1 more source

Acetyl Bromide Soluble Lignin (ABSL) Assay for Total Lignin Quantification from Plant Biomass

open access: yesBio-Protocol, 2017
Lignin is the second most abundant biopolymer on Earth, providing plants with mechanical support in secondary cell walls and defense against abiotic and biotic stresses.
William Barnes, Charles Anderson
doaj   +1 more source

Study of the formation of structures in solutions of chitosan – polyvinyl alcohol polymer blends

open access: yesКонденсированные среды и межфазные границы, 2021
The aim of this work was the investigation of the formation of structures in solutions of individual polymers, as well as their blends with each other in buffer solvents with different values of pH.
Rinat M. Akhmetkhanov   +4 more
doaj   +1 more source

Modification of portland cement with nanoadditives [PDF]

open access: yesНанотехнологии в строительстве, 2022
: Introduction. Portland cement slurries (suspensions) used for well cementing have high water-cement ratios (0.45–0.6). They also contain a minimum amount of inert fillers, must have zero water separation and controlled hardening with a minimum time
Farit A. Agzamov   +1 more
doaj   +1 more source

Structure formation and characteristics of chromium carbide–iron–titanium cermets; pp. 138–143 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2016
Structure formation and properties of chromium carbide-based cermets with iron–titanium binder were investigated. Chromium carbide (50–70 wt%), Fe, and Ti (Fe : Ti ratio 4 : 1 as the binder phase) powders were milled in an attritor and a ball ...
Märt Kolnes   +4 more
doaj   +1 more source

On the processes of segregation and stability of bimetallic nanoparticles Ni@Ag and Ag@Ni

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2022
This work studied bimetallic nanoparticles Ni@Ag and Ag@Ni with the total number of atoms 4000 by the molecular dynamics method using the tight-binding potential. The pattern of segregation and structural formation is established and its characteristics
K.G. Savina   +5 more
doaj   +1 more source

Controlling the structural formation of porized cement composites in the production of thermally efficient enclosure structures of enhanced quality [PDF]

open access: yesНанотехнологии в строительстве, 2023
ABSTACT: Introduction. Research to improve the quality of foam concrete products through targeted control of technological processes of structure formation of cement-based compositions is relevant.
Aleksei B. Steshenko   +3 more
doaj   +1 more source

Primordial Fluctuations From Quantum Gravity

open access: yesFrontiers in Astronomy and Space Sciences, 2021
We study the fluctuations and the correlations between spatial regions generated in the primordial quantum gravitational era of the universe. We point out that these can be computed using the Lorentzian dynamics defined by the Loop Quantum Gravity ...
Francesco Gozzini, Francesca Vidotto
doaj   +1 more source

Home - About - Disclaimer - Privacy