Results 31 to 40 of about 797,465 (294)

Comparison of the Mechanical Properties of Four-layer Epoxy Composite Reinforced with Natural Jute Fibers and Symmetrical E-glass Synthetic Fibers [PDF]

open access: yes, 2020
Research that produces environmentally friendly products continues to be developing. Research related to the natural fiber jute material and epoxy matrix has done.
Abdullah, H. A. (Hanif)   +5 more
core  

Teleparallel Equivalent of Non-Abelian Kaluza-Klein Theory [PDF]

open access: yes, 2000
Based on the equivalence between a gauge theory for the translation group and general relativity, a teleparallel version of the non-abelian Kaluza-Klein theory is constructed.
A. L. Barbosa   +18 more
core   +3 more sources

Comparison between the fundamental group scheme of a relative scheme and that of its generic fiber [PDF]

open access: yes, 2010
We show that the natural morphism $\phi:\pi_1(X_{\eta},x_{\eta})\to \pi_1(X,x)_{\eta}$ between the fundamental group scheme of the generic fiber $X_{\eta}$ of a scheme $X$ over a connected Dedekind scheme and the generic fiber of the fundamental group ...
Antei, Marco
core   +2 more sources

Green-reinforced Sedimentary Silt with Natural Curaua Fiber

open access: yesJournal of Natural Fibers, 2022
Lime and cement as traditional binders need to be reduced in soil stabilization to avoid carbon dioxide emissions. Infrastructure development like paved structures, buildings, foundations, and dams involves exhaustive use of natural resources and serious
Érico Rafael da Silva   +2 more
doaj   +1 more source

Thermographic non-destructive evaluation for natural fiber-reinforced composite laminates [PDF]

open access: yes, 2018
Natural fibers, including mineral and plant fibers, are increasingly used for polymer composite materials due to their low environmental impact. In this paper, thermographic non-destructive inspection techniques were used to evaluate and characterize ...
Avdelidis, Nicolas P.   +7 more
core   +3 more sources

Numerical and Experimental Validation of Natural Fiber Orientation in Viscous Fluid of Injection Cavity

open access: yesJournal of Natural Fibers, 2017
In an injection moulded product, the orientation of short fiber in polymer composite influences the strength of the product. A method was developed to predict orientation of natural fiber in thermoset composite.
K. Rajasekaran   +3 more
doaj   +1 more source

Synthesis and Mechanical Properties of Natural Fiber Reinforced Epoxy/Polyester/Polypropylene Composites: A Review

open access: yesJournal of Natural Fibers, 2022
Natural fiber is a resource that is found abundantly and cost effective. It is decomposed easily and biodegradable. Natural fibers have a vital place in the industry and have the capability of replacing carbon fibers and conventional glass because of ...
G. K. Sathishkumar   +9 more
doaj   +1 more source

Differential Characters and Geometric Chains

open access: yes, 2013
We study Cheeger-Simons differential characters and provide geometric descriptions of the ring structure and of the fiber integration map. The uniqueness of differential cohomology (up to unique natural transformation) is proved by deriving an explicit ...
Baer, Christian, Becker, Christian
core   +1 more source

Preparation and characterization of cogon grass natural fiber as a concrete filler for gamma radiation shielding [PDF]

open access: yes, 2021
Concrete is a combination of cement, fine aggregate, coarse aggregate, and water. Concrete has a high shielding potential against gamma radiation from radioactive source.
Mohd Yusof, Yusrina, Othman, Siti Amira
core  

Damping Behavior of Thermoplastic Organic Sheets with Continuous Natural Fiber-Reinforcement

open access: yesVibration, 2021
In the field of lightweight construction, the use of natural fibers as reinforcement in composites has been increasingly discussed. Additionally, the damping properties of natural fibers are known from fiber materials such as fiber insulation boards.
Martin Dannemann   +4 more
doaj   +1 more source

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