Results 11 to 20 of about 4,473 (248)

Improvement in sensitivity of radiochromic 3D dosimeter based on rigid polyurethane resin by incorporating tartrazine.

open access: yesPLoS ONE, 2020
We investigated the influence of incorporating tartrazine on the dose response characteristics of radiochromic 3D dosimeters based on polyurethane resin. We use three types of polyurethane resins with different Shore hardness values: 30 A, 50 A, and 80 D.
Jin Dong Cho   +6 more
doaj   +1 more source

Some Mechanical Properties of Polymer Matrix Composites Reinforced by Nano Silica Particles and Glass Fibers [PDF]

open access: yesEngineering and Technology Journal, 2018
This research studied the effect of nano silica particles on wear behavior test , ultimate tensile strength ,impact strength, fracture toughness and hardness shore D of specimens composite material.
Sudad Younis   +2 more
doaj   +1 more source

Effect of Pistachio Husks Powder Additive on Unsaturated Polyester Composites

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2023
In this study, polyester composites reinforced with pistachio shells powder (P.) with an average diameter (150 – 200 μm) with different weight ratios (0.5%, 1%, 1.5%, 2%, and 2.5%) were prepared to the resin.
Rihab Fadhil, Shatha H. Mahdi
doaj   +1 more source

Mechanical and physical properties of carbon nano tubes with kevlar fiber reinforced with polyester resin

open access: yesIraqi Journal of Physics, 2019
In this research study Hardness (shore D), Water absorption, Flexural, Impact Test, and Fracture Toughness of polymer nano composites. The polymer nano composites based on unsaturated polyester resin reinforced with Kevlar fibers (K.F).
Marwa Subhi Atallah
doaj   +1 more source

Pengaruh penambahan filler kapur dan kaolin terhadap kekerasan dan pukul takik kompon PVC

open access: yesMajalah Kulit, Karet, dan Plastik, 1990
The objective of this study is to detect whether there is any influence on the physical quality of the PVC compound (hardness and impact resistant). Which CaCO3, kaolin and mixture of CaCO3 and kaolin as filler is added into the batch.
Sofyan Karani, Arum Yuniari
doaj   +1 more source

Mechanical and Physical Properties of Nano Carbon Tube with Carbon Fiber Reinforced with Polyester Resin [PDF]

open access: yesEngineering and Technology Journal, 2017
In this research, study some physical and mechanical properties of polymernano composites. The polymernano composites based on unsaturated polyester resin reinforced with carbon fibers (C.F). The samples are attended by hand lay – up method.
M. Subhi   +2 more
doaj   +1 more source

Influence of Different Hardness Custom Foot Insoles in the Electromyography Activity Patterns of the Thigh and Hip Muscles during Motorcycling Sport: A Crossover Study

open access: yesSensors, 2020
Nowadays, the use of insoles in sport practice have been recognized to decrease the foot and lower limb injury patterns. The aim of this study was to analyse the effect of four types of hardness insoles (HI) in the activity patterns of the hip and thigh ...
Israel Casado-Hernández   +7 more
doaj   +1 more source

A novel fiberglass-reinforced polyurethane elastomer as the core sandwich material of the ship–plate system

open access: yesJournal of the Mechanical Behavior of Materials, 2023
A novel low-cost polyurethane (PU) elastomeric material reinforced with mat-form fiberglass for alternative ship material was developed. The hand lay-up technique was used to prepare samples with glass fiber contents of 0, 7, 9, 11, and 15% by weight ...
Ismail Abdi   +3 more
doaj   +1 more source

On Shore Hardness Testers of D Type : Motion of Hammers

open access: yesTransactions of the Japan Society of Mechanical Engineers, 1958
It is believed that the action of ball clutch in Shore scleroscope of D type decreases the reliability of its hardness measurement. This research concerns the investigation by photographic method on the motion of the hammer until it is clamped with clutch, and on the fall of the hammer after it reaches the maximum height of rebound.
YOSHIZAWA, Takeo, SEKIYA, Saburo
openaire   +2 more sources

On Shore Hardness Tester (Scleroscope) of Type D : Motion of Hammer

open access: yesBulletin of JSME, 1958
This research concerns the investigation on the behaviour of the hammer in the scleroscope of type D before it is clamped with the ball clutch the effect of the changeable action of the clutch on the rebound of the hammer and the hardness values measured.
YOSHIZAWA, Takeo, SEKIYA, Saburo
openaire   +2 more sources

Home - About - Disclaimer - Privacy