Materials Literature
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The main objective of the presented research is to develop a model in order to predict fracture of asphalt road surface impacted by an automobile tire stud. As a result of the analysis it is demonstrated that the critical automobile speed leading to creation of fracture in asphalt does depend on combination of asphalt…
Polymer based organic thin film transistors (OTFTs) can be used in radio-frequency identification (RFID) tags, flexible displays, medical sensors, memory devices, etc.; but their low charge carrier mobility has limited many applications. Recently, several classes of π-conjugated polymers having electron donor (D) and…
In this project, fundamental studies of the Pt/carbon catalyst degradation mechanisms and degradation rates are conducted and correlated with membrane transport properties and operational conditions. The fundamental studies are used to facilitate the development and refinement of membrane model implementation within t…
In the present study we investigated the anti-microbial effect of silver nanoparticles on Bacillus subtilis, Klebsiella pneumoniae E.coli, and Pseudomonas aeruginosa. Investigating method by using agar well diffusion technique in which study the comparison between standard drug Streptomycin and synthesized silver nano…
ACTIVATION ENERGIES OF SPARK PLASMA SINTERED OXIDE DISPERSION STRENGTHENED STEELS Derek Andrews Department of Physics Bachelor of Science Spark plasma sintering (SPS) was used to consolidate powders to create oxide dispersion strengthened (ODS) steel samples. Three different compositions of powder were used. These wer…
Only 10 years ago, consumer demand for brown diamonds was nearly non-existent. To industry experts, brown diamonds were known as ‘industrial grade diamonds’ or low-grade stones with little value. Today, however, a product that once had very little real and perceived value has become desirable among consumers due to th…
The aim of this work was the comparison of the thermal stability of dispersion strengthened (DS) Cu - 5 vol. % Al2O3 system with the CuCr electrode material. The DS material is characterized by high hardness, high strength and excellent thermal stability of the structure due to the highly stable γ Al2O3 dispersoid. Th…
Multiayer ultrathin films can find application as functional coatings or separation, semipermeable membranes in particular in biomedical area, hence, they should be biocompatible and they should have well characterised permeation behaviour towards some specified molecules (drugs, ions). The multilayer films were prepa…
This article addresses the results of microstructural examinations of the volume solidifying Fe–C–V–Si alloys containing carbon in the range of 1.39÷1.76%, vanadium in the range of 6.77÷7.77% and silicon in the range of 0.02÷3.10. The melting charge was Armco iron, ferro-vanadium with 81.7 wt.%V, spectrally pure graph…
In this study environmentally friendly biosynthesis of sliver nanoparticles (AgNPs) using leaves extract of Adenium obesum have been achieved. AgNPs can be prepared with lower amounts of leaf extract in short time. Stable AgNPs were formed by treating solution using the plant leaf extracts as reducing agents. Biosynth…
Under identical conditions, the 4-methyl cyclohexanone was oxidized by periodate in the presence of Ru(III). The order of the reaction with respect to [Ru(III)], [ketone] and [periodate] are unity, fractional and zero, respectively. The effect of temperature was studied and kinetic parameters were evaluated. The proba…
Latar Belakang: Kartilago artikuler orang dewasa memiliki kemampuan perbaikan jaringan yang terbatas apabila terjadi kerusakan yang disebabkan baik oleh karena trauma ataupun penyakit degenratif. Berbagai penyebab lemahnya respon regenerasi kartilago telah banyak dikemukakan, antara lain disebabkan karena tidak terben…
In the present study development of a polymer-based matrix tablet was undertaken to produce a sustained-release dosage form of Acebrophylline, since this dosage forms is relatively simple and cheap to produce when compared to other. Different batches of drug Acebrophylline tablets were manufactured by wet granulation…
In this paper we study about both size and shape effects on the Transition temperature of ferromagnetic nanocrystals for the first time. Also a thermodynamic approach is proposed to the mechanism of size and shape dependent of ferromagnetic transition temperature. One relation that is obtained, is a simple and unified…
Salah satu metode yang sering digunakan untuk memodifikasi permukaan implan adalah dengan metode etsa asam. Dengan metode ini diharapkan permukaan implan memiliki nilai kekasaran tinggi dan memiliki sifat wettability yang baik (hydrophilic). Nilai kekasaran permukaan berhubungan dengan sifat osteointegrasi implan. Sed…
The shovel comes in three sizes, with recommendations on which to order based on your height. It’s also designed to take full advantage of your leg muscles, with an angle and enlarged step on the blade so you don’t have to rely as heavily on your upper-body strength. This tool is lightweight, sturdy, and easy to work…
dimensional ordering of a stripe forming system of particles with competing longrange repulsion and short-range attraction in the presence of a quasi-one-dimensional corrugated substrate. As a function of increasing substrate strength or the ratio of the number of particles to the number of substrate minima we show th…
Cerium(IV) based samples namely cerium phosphate (CP), cerium molybdate (CM) and cerium phosphomolybdate (CPM) in the present study were obtained as yellow solids. They show maximum absorption in the ultra-violet region. Ligand to metal double-charge transfer transitions, are responsible for the bright colours of the…
Godkänd; 2014; 20141209 (matbol)
Basing on the analysis of sciencetechnical and educational literature from the technology of knitted fabric for the last decades is shown the majority changes in the interpretation of the ratio the main principles of common classification of knitted interloopings. The technological principle are mentioned rarely but…