Results 131 to 140 of about 1,500,580 (316)

Studies on the physical-chemical properties of honey

open access: yes, 2018
Critical studies have been presented on the falling sphere viscometer as an instrument for obtaining information concerning certain properties of anomalous fluids. The equation of Prasynskii and Rabinovich, which makes possible the calculation of the velocity gradient and shearing force at the surface of the sphere, was found admirably adapted for use ...
openaire   +3 more sources

Adaptive Observer for Coupled Wave PDE and Infinite ODE With Sampled Data and Unknown Input: Application to Brain Hemodynamics Estimation

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This article proposes a convergent adaptive observer for a damped wave PDE and an infinite‐dimensional ODE coupled in cascade using sampled‐in‐space ODE state measurements. The proposed observer estimates the distributed states of the PDE and ODE along with unknown PDE parameters and spatial input.
Zehor Belkhatir   +2 more
wiley   +1 more source

Landscape Composition and Soil Physical-Chemical Properties Drive the Assemblages of Bacteria and Fungi in Conventional Vegetable Fields. [PDF]

open access: yesMicroorganisms, 2022
Kumar U   +8 more
europepmc   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Structure and applications of chemically modified graphene [PDF]

open access: yes
Owing to its extraordinary electrical, optical, and mechanical properties, graphene has emerged as a promising material for a variety of applications in the future. However, not all these applications will be able to employ or require pristine graphene;
Pandey, Priyanka A.
core  

Effect of nano black rice husk ash on the chemical and physical properties of porous concrete pavement [PDF]

open access: yes, 2018
Black rice husk is a waste from this agriculture industry. It has been found that majority inorganic element in rice husk is silica. In this study, the effect of Nano from black rice husk ash (BRHA) on the chemical and physical properties of concrete ...
Mohamad Idris, Ali   +6 more
core  

Physical and chemical properties of the biochars.

open access: yes, 2016
Physical and chemical properties of the biochars.
Gang Yang (288797)   +5 more
core   +1 more source

Physical-chemical properties of antibiotic drugs: What we miss in our research. [PDF]

open access: yesJpn Dent Sci Rev, 2021
Urakov AL, Urakova NA, Reshetnikov AP.
europepmc   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

open access: yesAdvanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi   +3 more
wiley   +1 more source

Physical and chemical properties of sample soils.

open access: yes, 2019
Physical and chemical properties of sample soils.
Masashi Kamo (6843473)   +7 more
core   +1 more source

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