Materials Literature
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Interaction of citrus pectin with cefotaxime and 4-methyl-5-oxymethyluracyl was studied by spectrophotometric methods. New film coatings with these medicinal preparations for mesh implants were produced on the basis of the citrus pectin-polyvinyl alcohol matrix. It was demonstrated that supramolecular formations of th…
With the technological development of the chemical synthesis industry, polymeric insulation, especially extruded material, gradually replaces traditional paper-insulated lead covered (PILC) cable to become a popular type of cable. Among potential candidates, XLPE has become a popular material because of its excellent…
This work presents the results of obtaining the sulfur nanoparticles, which can be used in agriculture as a fungicide. Sulfur nanoparticles were obtained by modifying the surface of sulfur using various surfactants including cetyltriammoniumbromide (CTAB), sodium dodecylbenzene sulfanate (SDBS) and Triton X-100 (TX-10…
The unbalanced temperature distribution influences the power output of thermoelectric generator (TEG) system, which leads to mismatch power among TEG modules. This mismatch power degrades the energy efficiency of TEG systems based on the series-connected TEG modules. A hybrid centralized-distributed (HCD) power condit…
Modeling and experimental studies of the spatial distributions of the field and flux inside and above the surface of ferromagnetic plates of different dimension types, which were locally magnetized by U-shaped electromagnets, were performed. It was established that the location of a magnetic inhomogeneity in the inter…
Low cycle fatigue (LCF) and Creep-fatigue interaction (CFI) behavior of 316LN austenitic stainless steel alloyed with 0.07, 0.11, 0.14, .22 wt.% nitrogen is briefly discussed in this paper. The strain-life fatigue behavior of these steels is found to be dictated by not only cyclic plasticity but also by dynamic strain…
Myrcene-based vinyl ester resin (VER) monomer was prepared via simple Diels-Alder reaction and ring-opening esterification. The molecular structure and UV curing behaviors of prepared VER monomer were characterized using FTIR analysis method. Moreover, the mechanical properties, thermal stability and hardness of its U…
Efek inhibisi kinina pada korosi baja SS 304 dalam larutan HCl telah diteliti menggunakan metode pengurangan berat, polarisasi potensiodinamik dan electrochemical impedance spectroscopy (EIS). Berdasarkan hasil penelitian yang telah dilakukan, kinina dapat digunakan sebagai inhibitor pada korosi baja SS 304 dalam laru…
<em>Bagasse </em>memiliki kandungan serat yang cukup besar dan berpotensi digunakan sebagai bahan penguat dalam pembuatan komposit karena sifatnya yang kuat dan ringan. Dalam penelitian tugas akhir ini telah dibuat bahan komposit berpenguat <em>bagasse</em> dengan empat macam ukuran penguat yaitu serat <em>chopped </e…
Homogeneous Polyvinyl alcohol (PVA)/Carbon nanotube (CNT) composite has been prepared by solution casting method using gum acacia as a surfactant. CNT content in the composite was varied from 5-10% by weight. The thermal properties of PVA/CNT composites were investigated by Thermo Gravimetric/Differential Thermal Anal…
The transfer of Melosira cataractarum Hust. to the genus Pseudostaurosira D.M. Williams & Round is presented based on a detailed analysis of the type material from Java (Malay Archipelago) using light and scanning electron microscopy.The species was initially described as a "centric" diatom within the genus Melosira C…
This paper presents an experimental study on the mold design and the effect of processing parameters on the expansion of foam injection molded parts. Plastic foaming technology has been developed for producing light weight articles along with reducing shrinkage, warpage and sink marks. Limitation in foam expansion is…
Aggregation-induced emission molecules have a common propeller-like twisted conformation feature, which makes their molecular packings relatively loose. Their crystalline structures are easily destroyed by the planarization of the molecular conformation under external pressure, resulting in increased molecular conjuga…
We have performed the cell dynamics simulation with the time-dependent Ginzburg—Landau theory to study the self-assembled morphology of A—B diblock copolymers and C homopolymers in a neutral nanopore. The nanopore diameter and length are systematically varied to examine their effects on the structures of various morph…
The Defence Science and Technology Laboratory sponsored, QinetiQ-led Force Protection Engineering Research Programme has two main strands, applied and underpinning research. The underpinning strand is led by Blastech Ltd. One focus of this research is into the response of geomaterials to threat loading. The programme…
Thin films of CuS were prepared by Successive Ionic Layer And Reaction (SILAR) method from solution of CuCl2 and Na2S at two different molarities (0.03 M and 0.06 M) on glass substrates at room temperature. The structural and optical properties of CuS films were determined using X-ray diffraction (XRD) and UV-VIS spec…
Recientemente, la laguna Bacalar, Quintana Roo ha sido objeto de creciente interés por su elevado potencial ecoturístico y científico, debido a la presencia de microbialitos (trombolitos y estromatolitos). Sin embargo, las actividades turísticas y agrícolas circundantes representan potenciales riesgos de contaminación…
Carbon nanotube (CNT) could be exploited as a channel or source/drain region in field effect transistors (FETs). We theoretically investigate the impact of CNT doping level on a coaxially gated CNTFET's performance in the ballistic regime. The results show that the transconductance and subthreshold swing are independe…
The theory of the optical orientation of charge carriers in compensated III-V semiconductors and quantum wells for the case where electrons are excited to the conduction band from Mn-charged acceptor states is presented. It is shown that, in GaAs/AlGaAs quantum wells, the degree of the spin orientation of conduction-b…
Polycarbosilane (PCS) has been widely used to fabricate silicon carbide (SiC) fibers via pyrolysis. In this paper, for improving the morphology of SiC fibers, tetraethyl orthosilicate (TEOS, m = 1 g, 3 g and 5 g, respectively) was added into the PCS precursor solution (containing 1.5 g PCS). The continuous fibers have…