Results 1 to 10 of about 4,266 (210)

Thermal and energy analysis of DMTA tests [PDF]

open access: yesJournal of Theoretical, Computational and Applied Mechanics, 2023
This paper investigates the suitability of the isothermal linear viscoelastic framework to describe the behavior of polymers observed during DMTA tests.
André Chrysochoos, Olivier Arnould
doaj   +4 more sources

Preliminary study on the dynamic mechanical thermal analysis of polymer foams for use in impact resistant systems design [PDF]

open access: yesScientific Reports
The objective of this research was to assess the utility of dynamic mechanical thermal analysis (DMTA) in investigation of polymer-based foams for the potential use in anti-impact protection systems.
Marzena Fejdyś   +3 more
doaj   +2 more sources

A cytosine methyltransferase homologue is essential for sexual development in Aspergillus nidulans. [PDF]

open access: yesPLoS ONE, 2008
The genome defense processes RIP (repeat-induced point mutation) in the filamentous fungus Neurospora crassa, and MIP (methylation induced premeiotically) in the fungus Ascobolus immersus depend on proteins with DNA methyltransferase (DMT) domains ...
Dong W Lee   +3 more
doaj   +3 more sources

Evaluation of dynamic properties in ABS and PLA thermoplastics across frequency ranges [PDF]

open access: yesScientific Reports
Additively manufactured thermoplastics are increasingly employed in vibration-sensitive applications across the automotive, biomedical, and aerospace industries, where mechanical performance under dynamic loading is critical.
Sifa Gul Demiryurek
doaj   +2 more sources

In Vitro Comparison of Bioceramic Sealer Vs. Epoxy Resin Sealer for Obturation in Minimally Invasive Root Canal Treatment of Anterior Canines: A DMA Analysis

open access: yesJournal of Pharmacy and Bioallied Sciences
Objective: To compare the viscoelastic behavior of bioceramic and epoxy resin sealers in minimally invasive root canal treatments of anterior canines by using Dynamic Mechanical Thermal Analysis (DMTA).
Prabu Mahin Syed Ismail
doaj   +2 more sources

Effect of replacing EPDM with high molecular weight amorphous poly(1-hexene) on the mechanical behavior of iPP/iPP-g-MA/EPDM blends [PDF]

open access: yesPolyolefins Journal, 2023
Varying amounts of a high molecular weight poly(1-hexene) (PH, Mv=1.7×106 Da) are substituted for EPDM in an iPP/iPP-g-MA/EPDM blend (weight ratio: 76:4:20) and mechanical properties as well as phase morphology of the blends are studied and compared. The
Mahsa Mobini-Dehkordi   +2 more
doaj   +1 more source

Investigation of Surface Treatment of Carbon Fiber by Dynamic Method in the Polyurethane Composites [PDF]

open access: yesJournal of Chemical and Petroleum Engineering, 2022
Polyacrylonitrile (PAN)-based carbon fibers were chemically modified with a different ratio of Sulfuric acid (SA) to Nitric acid (NA), then reinforced Polyurethane (PU) composites in the presence of carbon fibers were prepared. The structural and surface
Mohamad Reza Pourhossainy   +4 more
doaj   +2 more sources

Fast calculation of hydrogen-bond strengths and free energy of hydration of small molecules

open access: yesScientific Reports, 2023
Hydrogen bonding is an interaction of great importance in drug discovery and development as it may significantly affect chemical and biological processes including the interaction of small molecules with other molecules, proteins, and membranes.
Gian Marco Ghiandoni, Eike Caldeweyher
doaj   +1 more source

Dental microwear texture analysis along reptile tooth rows: complex variation with non-dietary variables [PDF]

open access: yesRoyal Society Open Science, 2021
Dental microwear texture analysis (DMTA) is a powerful technique for reconstructing the diets of extant and extinct taxa. Few studies have investigated intraspecific microwear differences along with tooth rows and the influence of endogenous non-dietary ...
Jordan Bestwick   +3 more
doaj   +1 more source

Implications of diet for the extinction of saber-toothed cats and American lions. [PDF]

open access: yesPLoS ONE, 2012
The saber-toothed cat, Smilodon fatalis, and American lion, Panthera atrox, were among the largest terrestrial carnivores that lived during the Pleistocene, going extinct along with other megafauna ∼12,000 years ago.
Larisa R G Desantis   +3 more
doaj   +1 more source

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