Physical and mechanical properties

In this study, raw rice husk and bottom ash are used as fine aggregates, while fly ash is used as a binder material in the production of environmentally friendly unfired building bricks. The effect of raw rice husk content on the properties of green building bricks is investigated.

11p vifilm 24-09-2024 7 1   Download

This study uses chitin as a filler for a polyurethane composite foam. The obtained polymer composite materials (PCM) are examined the technological parameters of the foaming (start time, rise time, and apparent density), the physical-mechanical properties (the compressive stress, compression set, resilience), and the cross-link density.

8p dianmotminh02 03-05-2024 7 3   Download

: Fluid vents in the Sea of Marmara were discovered and investigated by several studies. In this paper, a numerical model is created for the first time to determine the possible transport mechanism behind those fluid emissions at the seafloor. The finite volume method is used for numerical simulations by implementing a commercial finite volume code, ANSYS-Fluent. The thermal and physical rock properties used in our models are taken from previous studies.

11p tanmocphong 29-01-2022 7 1   Download

Manufacture composite based on epoxy reinforced by glass fiber with organ – modified nanosilica using organotitanate curing agent that have good mechanical strength, thermal stability, flame restraint ability; improve the toughness of epoxy resin by incorporating reinforcing agent such as organ – modified nanosilica and glass fiber with appropriate manufacturing condition and ratio.

28p capheviahe26 25-01-2021 29 3   Download

In our study, we used molecular dynamics simulation (MD) to study diffusion mechanism in liquid MgO at a temperature of 3800K at a pressure ranging from 0 to 25 GPa. The calculated results and analysis of dynamical properties, spatially heterogeneous dynamics and diffusion mechanisms in MgO liquids will be reported in detail in this work.

10p tamynhan8 04-11-2020 14 3   Download

Molecular crystals are characterized by strong intramolecular forces and much weaker intermolecular forces. High-pressure spectroscopic studies provide useful data for refining the various model potentials which are used to predict of the physical properties of such systems as well as for the formation of various crystalline phases.

7p tamynhan8 04-11-2020 16 2   Download

This paper was carried out with the purpose of reviewing, classifying and testing the existing methods for determination the Bond Ball Mill Index.

15p lucastanguyen 01-06-2020 20 2   Download

Composite materials have gained traction in the world today and are becoming of common use in industrial and specialized applications in general due to their flexible nature that involves mixing through layers or matrixes the components of various substances and therefore, a percentage of each substance’s physical properties.

12p lucastanguyen 01-06-2020 41 2   Download

Polyaniline (PANI) was synthesized chemically in an acidic medium in the presence of ammonium persulfate (APS) as an oxidizing agent. PANI/montmorillonite nano-composites were prepared in the presence of various amounts of modified clay (from 1 to 5 wt.%) by solution casting method.

8p tocectocec 25-05-2020 11 3   Download

This paper presents some results on the survey of the impact of silica and black carbide on the mechanical – physical properties and vibration resistance of the rubber blended on natural rubber (NR) and synthetic styrene butadiene rubber (SBR), for application in manufacturing diesel engine mounts.

7p abcxyz123_02 03-03-2020 16 1   Download

The Elastomeric Alloy (EA) materials based on polypropylene (PP) and Vietnam waste Rubber Powder (RP) has been prepared in internal mixer of Haake in melting state with peroxide initiator. Dynamically stabilizing process at presence of radical donor and acceptor systems has leaded to form chemical bonds on the surface between two phases of surspending rubber powder and PP matrix and then to form intermediate phase surrounding Rubber Particles and making EA higher dense than that of materials by simple mixing RP and PP without networking.

5p uocvong03 24-09-2015 32 6   Download

The surface treatment by physical method of jute fiber using air plasma was investigated. Fiber was treated by the atmospheric plasma with various conditions of power 50W and different treatment times (from 1 min to 7 min). After treatment, the characteristics of fiber changed remarkably and fiber surface observed by SEM analyze showed a better morphology for adhesion. The result showed that tensile strength and Young’s modulus of jute fiber were slightly improved, however there was a remarkable improvement interface adhesion between fibers and polypropylene (PP) resin.

6p uocvong01 24-09-2015 52 6   Download

HPDE-clay composites materials prepared by melting compounding have discrete change in mechanical physical properties in comparison to the initial HPDE even when a small amount of clays is introduced. It is presented the results of the studying of the structure, the properties and morphology of HPDE- clay composites. The E modulus is increased from 702 MPa in the initial to 993.34 MPa, the tensile strength is raised from 12.37 to 35.33 MPa (most 3 times) and solvent permeability is decreased with 1% clay.

5p uocvong01 24-09-2015 75 5   Download

ThenblAfamily of genes encodes for small proteins neces-sary for the ordered degradation of phycobilisomes under certain stress conditions, a process known as chlorosis. Genes homologous tonblAseem to occur in all phycobili-some-containingorganisms.However, todate, nomolecular mechanism is known for the action of NblA, nor have the gene products been characterized to understand the physical properties of the molecule and thus help elucidate the mechanism on a structural basis.

8p research12 23-04-2013 42 4   Download

About a decade ago, the elastic properties of a single chromatin fiber and, subsequently, those of a single nucleosome started to be explored using optical and magnetic tweezers. These techniques have allowed direct mea-surements of several essential physical parameters of individual nucleo-somes and nucleosomal arrays, including the forces responsible for the maintenance of the structure of both the chromatin fiber and the individual nucleosomes

13p cosis54 05-01-2013 37 4   Download

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: Natural durability, physical and mechanical properties of Atlas cedar (Cedrus atlantica Manetti) wood from Southern Italy...

8p toshiba6 05-10-2011 48 4   Download

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: End-use related physical and mechanical properties of selected fast-growing poplar hybrids (Populus trichocarpa × P. deltoides)...

10p toshiba5 15-09-2011 53 4   Download

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: Comparison of physical and mechanical properties of tension and opposite wood from ten tropical rainforest trees from different species...

8p toshiba5 15-09-2011 68 5   Download

Collection of research reports best university in 2007 honored the author: 12. Truong Van Nam, Nguyen Xuan Dung, study the effect of substituents on the properties of aniline by approximate methods AM1 quantum ... Quantum mechanics is one of the fundamental theory of physics. Quantum mechanics is an extension and supplement of Newtonian mechanics (also known as classical mechanics). It is the basis of many other disciplines of physics and chemistry as solid state physics, chemistry quantum particle physics.

6p phalinh14 07-08-2011 84 3   Download