Materials Literature
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The effect of residence time of graphitisation on thermal conductivity of molded graphite has been examined. The examination has been conducted by varying residence time of graphitisation of molded carbon with petroleum coke as raw material and coal tar pitch. Graphitisation has been conducted by heating molded graphi…
The avain feather is natural polymer material resources. It includes large quantity of keratin, among of which proteins take up 83%. The feathers modified by methyl methacrylate at Ammonium Persulfate(APS)-Sodium Bisulfite(SBS) as initiator are applied to treat chrome tanning waste water. The factors such as dosage, p…
Until now the amount of setups that could be simulated with SPHysics was limited by SPHysicsGen that initialises the program. With this paper we want to present a new add-on that allows the creation of arbitrary geometries. Compared to a similar 2D add-on the 3D version features improved usability and new possibilitie…
Abstrak Penelitian ini bertujuan untuk menyelidiki respon polymeric foam yang diperkuat serat TKKS akibat beban tekan statik dan dinamik melalui eksperimen dan simulasi numerik. Respon yang akan diamati adalah tegangan maksimum, kekuatan retak/patah, serta distribusi tegangan. Karakteristik material berupa modulus e…
Abstract Progress in the development of lithographic fabrication technologies and their availability for optical applications has moved their use for the realization of novel gratings into the focus of modern optics. Only lithography opens the flexibility to generate almost arbitrary grating patterns and thus make the…
In this research, heat treated AISI 5115 (16MnCr5) cementation and AISI 52100 roller bearing steels were investigated. The specimens that were prepared before and after heat treatment application were sectioned via wire-erosion machine. Specimens were properly sanded and polished to get a smooth surface. Optical micro…
O betão apresenta em geral um bom comportamento ao fogo, no entanto em incêndios de grande severidade e longa duração, os elementos de betão podem perder parcial ou totalmente a sua capacidade de carga. Por outro lado, as condições de extinção do incêndio têm uma influência significativa nas propriedades mecânicas do…
Na soldagem de aços inoxidáveis ferríticos, o ciclo térmico pode causar alterações na zona afetada pelo calor (ZAC) tornando-a fragilizada. Para tornar possível a soldagem desses materiais, é importante que se conheçam os problemas que poderão surgir na ZAC os mesmos. O presente trabalho tem por objetivo caracterizar…
Rare earth (RE) (La3+, Ce4+, Pr3+, Nd3+, Sm3+, Eu3+, Gd3+, Tb3+, Dy3+, Er3+, Tm3+and Y3+) doped rutile phase TiO2were prepared by low temperature one step synthesis and used as photocatalyst. The RE doped rutile phase TiO2were characterized by X-ray diffraction (XRD), Particle Size, zeta potential, UV-visible spectros…
Hydrogen sulfur was regarded as the research object in this study. Correlated research of biological treatment of hydrogen sulfide was investigated. Domestication in an aeration flask was employed to screen out the optimal bacteria (Thiobacillus). Na2S was used as the inducer in the domestication period. Gas-liquid ph…
W-MCM-41 mesoporous catalysts were successfully synthesized in an open system with tetraethyl orthosilicate(TEOS) as silica precursor, sodium tungstate as tungsten precursor, and cetyltrimethylammonium bromide(CTAB) as structuredirecting reagent. The samples were characterized by means of various techniques and their…
As-prepared SBA-15 synthesized with different contents of surfactant was put into a swagelok-like high pressure reactor to yield a carbon/porous silica composite. The surfactant was then in-situ carbonized and deposited inside the channels of the pores of SBA-15 via a reaction under Autogenic Pressure at Elevated Temp…
The Neurohedron is a multi-modal interface for a nonlinear sequencer software model, embodied physically in a dodecahedron. The faces of the dodecahedron are both inputs and outputs, allowing the device to visualize the activity of the software model as well as convey input to it. The software model maps MIDI notes to…
Studded tires are legal in Washington State and are typically allowed to be used each winter between the months of November and April. They are known to cause accelerated wheelpath wear resulting in additional pavement preservation costs. While studded tire use rates are hard to quantify, the volume of studded tire eq…
Objective: The aim of this study was to evaluate the bond strength between metal brackets and non-glazed ceramic with three different surface treatment methods.Materials and Methods: Forty-two non-glazed ceramic disks were assigned into three groups. Group I and II specimens were etched with 9.5% hydrofluoric acid. Su…
Elaborating a material collected from different regions of Albania, eleven species of the genus Zercon(Zerconidae) were identified, three of them, Z. albanicus sp. nov., Z. cavatus sp. nov. and Z. elongatus sp. nov., proved to be newto science. Short description of male and deutonymph of Z. villosus and morphological…
On the occasion of the 35th year from the publication of the first issue of the Proceedings of the Italian Association of Limnology and Oceanography (AIOL) we present here the results of a meta-analysis of all of the material included in the AIOL Proceedings, with the aim of analysing the last 30 years history of aqua…
Ultra high-pressure waterjets (WJ) have gained consideration as a viable alternative to conventional material removal and cleaning methods such as chemical milling, grit blasting, and grinding. Waterjets have often been considered for the stripping of unwanted coatings, but they also exhibit an inherent ability for th…
Seam quality in terms of appearance and strength were investigated for very light weight fabrics (weight less than 80 g m-1;. Seams were constructed with different sewing parameters, which included types of thread, stitch densities and needle size. Before constructing the seam for appearance and strength evaluation th…
Streszczenie — Artyku³ stanowi krotki przegl¹d literaturowy dotycz¹cy zagadnien zwi¹zanych z biodegradacj¹ polieterouretanow (PEUR). Omowiono wyniki badan enzymatycznej degradacji oraz utleniania takich polimerow, prowadzonych zarowno w uk³adach in vivo, jak i in vitro. Dodatkowo przedstawiono ocene wp³ywu œrodowiska…