Materials Literature
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Telah berhasil dibuat prototype pelapis penyerap gelombang mikro berbasis Mhexaferit BaFe12-xZnxO19 dari pasir alam pada kabin pesawat. Barium M-Hexaferit (BaM) disintesis dengan metode kopresipitasi dan rekayasa kemagnetannya dengan mekanisme doping ion Zn2+. Karakterisasi sampel dilakukan dengan Difraksi Sinar-X (XR…
The weekly in vitro degradation of fibrous-porous non-woven polylactide scaffolds made by aerodynamic formation in a turbulent gas flow has been studied with 37 °С in model RPMI-1640 medium imitated body fluid of organism. Lactate monomers released into solution exponentially and reached slowly a maximum value the end…
Some new models for nonlinear capacitors and nonlinear inductors built with SPICE-like element primitives are presentedhere. They have the advantage that they can be used for simulation in SPICE of those circuits which contain nonlinearcapacitors controlled either in voltage or in charge, and nonlinear inductors contr…
Most anti-cancer drugs are based on a differential killing of cancer cells. Development of cancer therapy has largely been driven by the assumption that if we screen enough drugs we will find drugs with a mechanism of action which allows a greater discrimination between normal cells and cancer cells. From a biochemica…
Lantadene, a pentacyclic triterpenoid, is a hydrophobic bioactive compound exhibiting wide array of therapeutic applications. It's high molecular weight and structure plays an important factor for using this as drug. Zeta potential value -17.96 meV indicates it's stability in the colloidal dispersion. Proper drug deli…
We fabricate a novel ion exchanger of tin cerium phosphate, by incorporation of polyaniline conducting polymer by ex-situ polymerization method, as a potential candidate for environmental remediation based on the concept of composite material. The study showed its utility as ion exchanger in the separation chemistry.…
Abstract: This research was carried out by adding several reinforcement materials to the epoxy type (Henkel/pattex) then the shear strength was measured. It was noticed from experimental results that there is a significant improvement achieved by adding the reinforcement materials. Also the change of the percentage of…
Process development and characterization of spraying carbon nanofibers (CNF) over carbon fiber fabrics for reinforcing polymer composites are presented in this study. The molded composite structure consists of a high‐temperature polymer reinforced with carbon fiber fabrics sprayed with different dosages of carbon nano…
In the present work, physicochemical treatments were introduced for de-aggregation and stable dispersion of detonation nanodiamonds (DND) in polar solvents. The DNDs in water exhibited a particle size of 138 nm and high dispersion stability without particular treatment. However, the DNDs in ethanol were severely aggre…
This article presents an integrated analysis using a Monte Carlo exposure model, dose–response effects model and habitat,and population dynamics models, all of which allow us to quantitatively estimate the effects of polychlorinated biphenyl (PCB)exposure on American mink (Mustela vison) abundance at the Portland Harb…
We have investigated the interfacial chemical reaction between Al metal electrodes and Pr0.7Ca0.3MnO3 perovskite oxides to shed light on the underlying mechanism of resistive switching phenomenon that can be utilized in random access memory devices. Depth profiles of the Al/Pr0.7Ca0.3MnO3 interface show the formation…
The most general photocatalyst, $TiO_2$ and $WO_3$ , are acknowledged to be ineffective in range of visible light. Therefore, many efforts have been directed at improving their activity such as: band-gap narrowing with non-metal element doping and making composites with high specific surface area to effectively separa…
In this research work Powder of Acer Saccharum Leaves (PASL) were used as a non-conventional, cost-effective sorbent for removal of Ni (II) from aqueous solutions in batch systems. The sorbent was characterised with respect to surface area, pore volume, etc. It was found that PASL has high specific surface area (11.99…
The potential to remove Pb (II) from aqueous solutions through adsorption using Ailanthus Excelsa tree bark was investigated. The effects of pH, contact time, initial concentration and adsorbent dosage on the adsorption of Pb (II) were studied. The different experimental conditions were investigated in this study. It…
Magnetics seems to serve as a common function of opening a new vista of a multi-barrier or multi-step drug delivery. It has been developed that magnetic drug targeting is an efficient means of localizing toxic or labile pharmaceuticals in a preselective site. A number of novel drug delivery system have emerged encompa…
DOI: 10.17014/ijog.v8i4.167Kamojang geothermal field located in West Java Province, falls under the Pangkalan Subregency, Bandung Regency. The researched area is a geothermal field located in the Quaternary volcanic caldera system of about 0.452 to 1.2 Ma. The volcanic activity generated hydrothermal fluids, interacti…
Yttria-stabilized zirconia (YSZ) coatings are fabricated via suspension plasma spray (SPS) for thermal barrier applications. Three different suspension sets are prepared by using a planetary mill as well as ball mill in order to examine the effect of starting suspension on the phase evolution and the microstructure of…
The well in the quantum dot stack infrared photodetector (WD-QDIP) is proposed which can be operated at high temperature ∼230 K. The operation principle of this device is investigated, including the carrier transport and the enhancement in the photocurrent. The WD-QDIPs with different well numbers are fabricated to st…
Polusi udara merupakan topik utama pada era modern saat ini, oleh karena itu tujuan dari projek penelitian ini adalah untuk meminimalisir dampak berbahaya yang ditimbulkan dari asap hasil pembakaran sampah, terutama zat hasil pembakaran sampah yang bernama Dioxin dan Furans serta debu-debu berbahaya, apabila terhirup…
During the fermentative production of 1,3-propanediol under high substrate concentrations, accumulation of intracellular 3-hydroxypropionaldehyde will cause premature cessation of cell growth and glycerol consumption. Discovery of oxidoreductases that can convert 3- hydroxypropionaldehyde to 1,3-propanediol using NADP…