Materials Literature
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This work has the objective to compare the mechanical behaviour of a brain impact using an alternative numerical meshless technique. Thus, a discrete geometrical model of a brain was constructed using medical images. This technique allows to achieve a discretization with realistic geometry, allowing to define locally…
Microtissues containing multiple cell types have been used in both in vitro models and in vivo tissue repair applications. However, to improve throughput, there is a need to develop a platform that supports self-assembly of a large number of 3D microtissues containing multiple cell types in a dynamic suspension system…
Understanding and controlling polyelectrolyte adsorption onto carbon nanotubes is a fundamental challenge in nanotechnology. Polyelectrolytes have been shown to stabilize nanotube suspensions through adsorbing onto the nanotube surface, and polyelectrolyte-coated nanotubes are emerging as building blocks for complex a…
Abstract In the present work, novel freestanding multilayered films based on chitosan (CHI), alginate (ALG), and functionalized few‐layer graphene are developed through layer‐by‐layer assembly. First, functionalized few‐layer graphene aqueous suspensions are prepared from graphite by a stabilizer‐assisted liquid phase…
Strontium shows an increasing interest on bone formation and bone resorption prevention. Here, pure apatite strontium (Ap-SrOH) [Sr 5 (PO 4 ) 3 (OH), strontium hydroxyapatite] particles were prepared by the precipitation method using Sr(NO 3 ) 2 · 6H 2 O and (NH 4 ) 2 HPO 4 as reagents. Scanning electron microscope, t…
A series of borophosphate glasses doped individually with few antibacterial oxides; CeO2, ZnO and CuO were prepared by melt quenching technique. The structure and bioactivity of the prepared samples were analyzed through FTIR spectral technique and corrosion behavior before and after immersion for 2 weeks in simulated…
This work concerns the oxalate delivery process that occurs when using (NH4)3[NbO(C2O4)3]·6H2O as a suitable oxalate source in the synthesis of two compounds, [Cu(dmphen)(C2O4)(H2O)] (1) and [{Cu(dmphen)(CH3OH)}2(μ-C2O4)](ClO4)2 (2) (dmphen = 2,9-dimethyl-1,10-phenanthroline). {[Fe{HB(pz)3}(CN)2(μ-CN)]2[{Cu(dmphen)}2(…
The degradation of transport current property by the mechanical strain on the practical Nb3Sn wire is a serious problem for the future fusion magnet operated under higher electromagnetic force. Recently, we developed various Zinc (Zn) solid solution ternary Cu-Sn alloy (Cu-Sn-Zn) matrices for the internal strengthened…
In this study, high silica glass fiber fabric/liquid silicone rubber (HSGFF/LSR) composite sheet filled with hollow glass microspheres (HGM) was prepared. The effects of HGM content on the mechanical, thermal insulation and dynamic mechanical properties of the composite sheet were investigated. The results showed tha…
In this study, the oxidation of thiols to sulfonic acids and sulfides to sulfoxides and sulfones was carried out in the presence of Fe 3 O 4 /H 2 O 2 as an efficient heterogeneous Fenton system. The products were obtained in good to excellent yields and short reaction times. Further results showed that the heterogeneo…
Ultrasonic processing has wide applicability in the food industry. Ultrasonication can be used to improve conventional food processing unit operations by reducing energy and chemical requirements, thus offering a greener option. It can also be used to modify foods to create novel food products not possible using conve…
Replacing external metallic wall of refrigerated vehicles has been on the front burner in many published works as weight of the metallic insulated panel continues to pose a challenge on refrigeration unit and environment. As a follow - up to this problem statement, five (5) composite materials were fabricated as repla…
As is known, polymeric polyelectrolyte hydrogels are superabsorbents that are capable of absorbing moisture in amounts many times greater than their own mass. Numerous studies have shown that besides water absorption and retention, they can also be effectively used as sorbents to purify water from heavy metals. In man…
ABSTRACT This study includes three main parts: synthesizing the hierarchical silicoaluminophosphate (SAPO‐34) catalyst, evaluating the performance of this modified catalyst in the methanol to light olefins (MTO) process, and providing a new dynamic kinetic model for the modified catalyst. At first, a carbon nanotube (…
The pulsed-field magnetization experiments have been carried out for the layered MgB2bulk magnets to clarify the magnetic flux motion during the activation processes. Since MgB2is characterized as homogeneous, lightweight, and inexpensive HTS materialin comparison to RE123 compounds (RE = rare earth), the material may…
The structure and morphology of organic thin films on solid substrates influence their functional properties. Therefore, knowledge of molecular structure, orientation, diffusion, and involved interactions on particular surfaces is required to gain control over the growth process and prepare layers with the required fu…
Creation of organic luminescent materials with high solid-state efficiency is of vital importance for their applications in optoelectronic fields. Here, a series of AIE luminogens (AIE gens), (Z)-2,3-bis(4-(9,9-bis(6-(9H-carbazol-9-yl)hexyl)-9H-fluoren-2-yl)phenyl)-3-phenylacrylonitrile (SFC), and 2,3-bis(4-(9,9-bis(6…
The object of this investigation is to improve the flux pinning and critical current density (Jc) of bulk MgB2materials for daily applications including superconducting permanent magnets. We prepared two sets of bulk MgB2materials employing commercial high-purity powders of Mg metal and carbon-coated amorphous B using…
The objective of our study was to compare the cellular and extracellular matrix (ECM) structure and the biomechanical properties of human pericardium (HP) with the normal human aortic heart valve (NAV). HP tissues (from 12 patients) and NAV samples (from 5 patients) were harvested during heart surgery. The main cells…
An efficient method is proposed for predicting the attenuation and distortion of the damped oscillation surges traveling on single-phase overhead lines under the influence of corona and frequency dependence of line parameters. The finite-difference time-domain algorithm is employed in the transient computation. The Su…