Materials Literature
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In this article shows the known constructions of gravitational continuous devices for mixing of bulk materials and the conditional classification of these devices. There is the problem of obtaining mixtures in cases when the volume-weighted amount of one component of the mixture is significantly greater than the secon…
Bioconversion of lignocelluloses is currently a major challenge if biorefining operations are to become commonplace. The objectives of the present work were to understand and describe the evolution of physical properties of lignocellulose suspensions during enzyme-based hydrolysis reaction. Experimental set-up and met…
Protein structural flexibility is important for catalysis, binding, protein design, and allostery. Some simple methods have recently been introduced to compute protein flexibility directly from the protein structure without any mechanical models. For example the atomic mean square displacement (or B-factor) is related…
Intisari - Energi listrik merupakan salah satu energi yang dibutuhkan oleh masyarakat. Sumber energi listrik dihasilkan oleh pembangkit tenaga listrik. Komponen penting dalam pembangkit tenaga listrik adalah tranformator. Penggunaan transformator secara terus menerus dapat menyebabkan kegagalan isolasi dan rusaknya tr…
The $S_4$ symmetric microscopic model with two iso-spin components has been studied via constrained-path quantum Monte Carlo simulation. Our results demonstrate a stable $(π,0)$ or $(0,π)$ magnetic order which is significantly enhanced on increasing both the Coulomb repulsion $U$ and Hund's coupling strength $J$. Also…
Instabilities are discussed which take place when a nematic liquid crystal (LC) layer, enclosed between a planar reference plate and a photosensitive substrate, is illuminated with polarized light from the reference side ({\it reverse} geometry). The dependence of the observed effects on the wavelength, polarization d…
We have previously introduced vertex attack tolerance (VAT), denoted mathematically as $τ(G) = \min_{S \subset V} \frac{|S|}{|V-S-C_{max}(V-S)|+1}$ where $C_{max}(V-S)$ is the largest connected component in $V-S$, as an appropriate mathematical measure of resilience in the face of targeted node attacks for arbitrary d…
Experimental results for the density of states of hydrogenated amorphous silicon due to Jackson et al near the valence and conduction band edges were analyzed using Levenberg-Marquardt nonlinear fitting method. It is found that the density of states of the valence band and the conduction band can be fitted to a simple…
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La0.67Ca0.33MnO3 has been reported for the past years as a possible material for magnetocaloric applications. In this circumstance, hysteresis is unappealing due to losses during the thermal cycles. It is usually related with first-order phase transitions and large magnetocaloric effect. In this context, we report the…
This paper presents the manufacturing and characterisation of fully textile woven sensors based on melt-spun piezoelectric bicomponent fibres.The piezoelectric fibres were used as warp in different weave constructions together with three different commercially available conductive yarns as weft.The conductive yarns co…
Intisari - Sistem isolasi peralatan listrik merupakan salah satu bagian yang paling vital dari sebuah peralatan listrik. Kerusakan peralatan listrik pada umumnya terjadi pada bagian sistem isolasinya. Sehingga kondisi kesehatan peralatan listrik dapat dimonitoring dari keadaan sistem isolasinya. Salah satu upaya monit…
Trabajo presentado a la "6th International Conference on Magnetic Refrigeration at Room Temperature" celebrada en Victoria (Canadá) del 7 al 10 de septiembre de 2014.
ZrB2-SiC-B4C aqueous suspension has been prepared using poly(ethyleneimine) as a dispersant. Since increasing the solid content of suspension leads to high compaction and consequently low porosities through final coat, the effect of solid content has been studied. The dispersant and solid content were changed in the r…
The variations of fatigue limit and fatigue life of a plain specimen of annealed and normalized 0.83% carbon steel were investigated. This material is used for cutting tools and the original microstructure includes a spherical microstructure. After heat treatment under some conditions, the microstructure changed to a…
Regular sampling for six months from January to July 2012 were taken in small, shallow, perennial, standing ponds near the Greater Zab River, Gwer district, Erbil. A variety of physicochemical parameters were determined. Air and water temperature were falling between 15.2 - 34.7 ? C and 15.5 and 26.5 ?C. The waters ar…
In the present investigation, we have successfully grown optically transparent single crystals from aqueous solution by slow evaporation technique. The influence of dopant Pd2+ on the growth process, crystalline properties of potassium acid phthalate (KAP) has been investigated. Powder XRD and ICP-OES studies confirme…
The present study conducted to study epipelic algae in the Tigris River within Baghdad city for one year from September 2011 to August 2012 due to the importance role of benthic algae in lotic ecosystems. Five sites have been chosen along the river. A total of 154 species of epipelic algae was recorded belongs to 45 g…
The present study was conducted in the Tigris River within Baghdad (University of Baghdad campus). The study included some physicochemical parameters and qualitative of epiphytic algae on the host plant (Ceratophyllum demersum) during summer season 2013. The results revealed that the study area was alkaline, hard and…
In recent years materials with the electrocaloric effect have attracted a lot of attention since they could present the basis for a new generation of coolers. A lot of effort has been put in searching and investigating the electrocaloric materials, however, considerably less attention was given to ideas on how to desi…