Results 11 to 20 of about 11,490,915 (351)

Effects of the Number of Layers and Thickness Ratio on the Impact Fracture Behavior of AA6061/AA7075 Laminated Metal Composites

open access: yesCrystals, 2023
The initial thickness ratio and number of layers of dissimilar metal components greatly influence the impact performance of laminated metal composites. In this paper, positive and lateral impact tests of 5-layer composite sheets with thickness ratios of ...
Zejun Chen   +4 more
doaj   +1 more source

Assessment of Cytotoxic and Genotoxic Effect of Modern Dental Materials in vivo

open access: yesActa Stomatologica Croatica, 2023
Objectives: The aim of the study was to assess the biocompatibility of modern composite and amalgam dental fillings. Material and Methods: The research was conducted on 150 healthy patients between the ages of 10 and 20 who had amalgam and composite ...
Milena Trutina Gavran   +8 more
doaj   +1 more source

Pembuatan dan Karakterisasi Sifat Fisis Komposit Multilayer Serat Rami

open access: yesJPFT (Jurnal Pendidikan Fisika dan Teknologi), 2021
The use of composites as an innovative new material is increasing. Composites are made from two or more materials that have different properties. This research was conducted to make multilayer composites and determine the effect of variations in the ...
Naila Hilmiyana Syifa   +2 more
doaj   +1 more source

Residual Flexural Performance of Double-Layer Steel–RLHDC Composite Panels after Impact

open access: yesBuildings, 2023
The mechanical behavior of steel–concrete–steel (SCS) sandwich composite structures under low- or high-velocity impact loading has garnered increasing attention from researchers in recent decades.
Zhenyu Huang   +3 more
doaj   +1 more source

On the Metric Dimension of Arithmetic Graph of a Composite Number

open access: yesSymmetry, 2020
This paper is devoted to the study of the arithmetic graph of a composite number m, denoted by A m . It has been observed that there exist different composite numbers for which the arithmetic graphs are isomorphic.
Shahid ur Rehman, M. Imran, I. Javaid
semanticscholar   +1 more source

On Highly Composite and Similar Numbers [PDF]

open access: yesTransactions of the American Mathematical Society, 1944
A (positive whole) number is called highly composite if it has more divisors than any smaller number, highly abundant if the sum of its divisors is greater than that for any smaller number, and superabundant if the sum of the reciprocals of its divisors is greater than that for any smaller number. The author uses \textit{A. E.
Paul Erdös, L. Alaoglu
openaire   +2 more sources

Analytical and Numerical Solution of Heat Transfer Equation in Rectangular Composite Fins [PDF]

open access: yesMechanics of Advanced Composite Structures, 2022
Today, the use of composites has received widespread attention due to their special properties that cannot be found in alloys. Kevlar-Epoxy composite is one of the most widely used materials. In this paper, we analyze the heat transfer in rectangular fin
Mohsen Hajinejad Sorkhi   +1 more
doaj   +1 more source

Polymeric composite materials for radiation shielding: a review

open access: yesEnvironmental Chemistry Letters, 2021
The rising use of radioactive elements is increasing radioactive pollution and calling for advanced materials to protect individuals. For instance, polymers are promising due to their mechanical, electrical, thermal, and multifunctional properties ...
C. V. More   +4 more
semanticscholar   +1 more source

Composite outcomes in observational studies of Crohn’s disease: a systematic review and meta-analysis

open access: yesTherapeutic Advances in Gastroenterology, 2022
Background: This systematic review and meta-analysis aims to assess composite and aggregate outcomes of observational studies in Crohn’s disease and to evaluate whether the number and type of variables included affect the frequency of the outcome ...
Fernando Magro   +15 more
doaj   +1 more source

Research on the Shear Behaviour of Composite Shear Connectors

open access: yesBuildings, 2022
In order to make full use of the advantages of welded stud and perfobond rib shear connectors, a new type of composite shear connector is proposed. Studs are welded to the perforated steel plate of the PBL connectors.
Chengfeng Xue   +5 more
doaj   +1 more source

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