after harvesting, pistachio nuts are generally kept in storage before being exported. during handling, thenuts are exposed to external forces that cause mechanical damage to them. the increase of the mechanicaldamage is a function of storage conditions, especially temperature. this research investigated the effect ofstorage temperature (25, 5, -5, -15°c), on the mechanical properties of pistach...

This study describes the hydrothermal synthesis of a novel carbon/palmitic acid (PA) microencapsulated phase change material (MEPCM). The field emission scanning electron microscopy (FESEM) and high resolution transmission electron microscopy (HRTEM) images confirm that spherical capsules of uniform size were formed with a mean diameter of 6.42 μm. The melting and freezing temperature were foun...

In this work, polypropylene (PP) and graphene nanoplatelet (GNPs) composites are routed through twin screw mixing injection moulding. Two types of GNPs with a fixed size 25 µm surface areas ranging from 50–80 m2/g (H25, average thickness 15 nm) 120–150 (M25, 6–8 were blended PP at loading rates 1, 2, 3, 4, 5 weight%. Mechanical properties such as tensile, flexural, impact strengths Young’s modu...

during the past two decades the use of lignocellouse fibers in reinforcing composites has attracted much research activities. in the present work, date palm fiber was used for production of composites compatible withliving environment. the fibers were pre-treated chemically to remove impurities. in order to verify and compare the effectiveness of the pretreatment methods, lignin, ash, moisture ...

Abstract Aluminum oxide (Al 2 O 3 ) nanoparticles are capable of improving the material characteristics if reinforced to soft and low strength material. The major limitation in utilization Al alloy 6061 medium heavy stress applications such as automobile, defense, transportations, aerospace is hardness strength. In order overcome deficiency Al6061, nano-Al Al6061 matrix nanocomposite (AMNC) was...

this study was devoted to the development of pulp luffa cclindrica and its characterization paper (annual plant fiber of the family cucurbitaceae). baking at soda helps to achieve a high level of delignification (kappa ≤ 10) and high yield (≈ 67%).the beatability stack valley is comparable to refined wood fibers, the fibers develop a normally time with good hydrophilic properties without excess...

the sustainability of the built environment is increasingly coming to the forefront of infrastructure design and maintenance decisions. to address this, development of a new class of more sustainable cement-based materials is needed. fiber reinforced self-consolidating mortar (frscm) was developed by optimizing the micromechanical parameters, which control composite properties in the hardened s...

this work is conducted to obtain mechanical properties of microtubule. for this aim, interaction energy in alpha-beta, beta-alpha, alpha-alpha, and beta-beta dimers was calculated using the molecular dynamic simulation. force-distance diagrams for these dimers were obtained using the relation between potential energy and force. afterwards, instead of each tubulin, one sphere with 55 kda weight ...

objective: despite great advances made in dental composite resins, their use is associated with some concerns regarding their mechanical properties such as their flexural strength. considering the introduction of different composite resins into the market, there is a need to compare their mechanical properties and particularly flexural strength. this study aimed to compare the flexural strength...