ChemInform Abstract: Hexaaluminates: A Review of the Structure, Synthesis and Catalytic Performance
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Soluble Collagen Approach to a Combination Tannage Mechanism
Although complex salts of CrIII sulfate are currently the most effective tanning agents, salts of other metals, including aluminum, have been used either alone or in combination with vegetable tannins or other organic chemicals. In the present study, the interactions of aluminum sulfate, and quebracho or chestnut tann…
Analisis Struktur Kristal dan Gugus Fungsi Nife2o4 Hasil Sintesis dengan Metode Sol Gel
ANALYSIS OF CRYSTAL STRUCTURE AND FUNCTIONAL GROUPS OF NiFe2 O4 USING SOL GEL METHOD. A synthesis and characterization NiFe2 O4 with sol gel method have been conducted. Fe2(NO3)3.9H2 O powder mixed with Ni(NO3)2 was dissolved in 50 ml of polyethylene glycol at room temperature, then heated at a temperature of approxim…
Pengaruh Perlakuan Temperatur terhadap Sifat Mekanik Komposit Hibrid Polyester Berpenguat Serat Buah Lontar dan Serat Kaca
The purpose of this study was to determine the effect of oven temperature on mechanical properties composite hybrid polyester reinforcement palm fruit fiber and glass fiber with fiber volume fraction (Vf) of 32%. The materials used in this study is polyester resin, glass fiber and shoots corypha utan fiber. Tensile te…
Kemampuan Mahasiswa dalam Memilih Material pada Pembuatan Karya Teknologi
The objectivesof this study were to analyze the approaches applied by the studentstodetermine the type of materials, to examine the type of materials widely used by the students, and to assess the students’ accuracy in determining the type of materialsto produce technological works. This study was categorised into ex…
In-vitro Synthesis of Gold Nanoclusters in Neurons
Abstract : Gold nanoclusters (AuNCs) synthesized intracellularly have potential for use as in-vivo or in-vitro pressure probes for evaluating the effects of traumatic brain injury. AuNCs were grown within NG-108-15 neuroblastoma-glioma hybrid cells, indicated by increased fluorescence intensity at 488 nm. Effect of go…
Step by step designing of composite right left handed leaky wave antenna on Substrate integrated waveguide using S Slots
A step by step designing of Composite right left handed transmission line Substrate integrated waveguide Leaky wave antenna with novel S shaped slots is presented. The S slots etched on the upper plate of the Substrate Integrated Waveguide provides the series capacitance necessary for the realization of composite righ…
Performance comparison of monolayer, bilayer and multilayer organic light emitting diodes
This research paper analyzes the performance of organic light emitting diodes (OLEDs) using state of art industry standard Atlas 2-D numerical device simulator for different structures. The basic electrical characteristics of OLEDs are analyzed and parameters extraction is carried out. Besides this, comparison between…
A Study of Single Layer and Bilayer GNRFET
Graphene Nano ribbons are among the recently discovered carbon nanostructures, with unique characteristics for novel applications. One of the most important features of graphene Nano ribbons, from both basic science and application points of view, is their electrical band gap. In this research, we study the tunability…
Integration of experimental and computational methods for identifying geometric, thermal and diffusive properties of biomaterials
Abstract Knowledge of physical properties of biomaterials is important in understanding and designing agri-food and wood processing industries. In the study presented in this paper computational methods were developed and combined with experiments to enhance identification of agri-food and forest product properties, a…
Fabrication of stretchable and flexible vertically aligned carbon nanotube film
This paper presents a cost-effective method to transfer vertically aligned carbon nanotubes (VA-CNTs) with Poly(dimethylsiloxane) (PDMS). Here, in this process, we take the advantage of PDMS solution as the transfer medium, meanwhile utilize the good wetting of this solution on another cured PDMS film to realize effic…
Simulation and experiment of inverted pyramid DBD micro-plasma devices array for maskless nanoscale etching
A novel maskless nanoscale material etching method based on microcavities dielectric barrier discharge (DBD) array with advantages of high accuracy and high efficiency has been proposed in this paper. A two-dimensional simulation of pyramidal hollow cathode DBD microplasma operated in Ar has been studied using FEM met…
Fabrication of well aligned P(VDF-TrFE) nanofibers with asymmetric comb-shape electrode
This paper presents an efficient fabrication process of highly aligned P(VDF-TrFE) nanofibers based on conventional far-field electrospinning (CFES) technique. By attaching a comb-shape electrode onto a fast rotating drum, the process combines the advantages of plane electrode and rotating-drum-collecting methods, whi…
Cross Polarization Discrimination Enhancement of a Dual Linear Polarization Antenna Using Metamaterials
This paper presents a novel approach to enhance the cross polarization discrimination in a dual linear polarization microstrip patch antenna at the frequency of 5.5 GHz. Two different designs of a dual linear polarization antenna using metamaterials are considered. In the first design, microstrip patch antenna is load…
Influence of Material Properties of Stainless Steel on the Ignition Probability of Flammable Gas Mixtures due to Mechanical Impacts
Grazing impact experiments of various types of stainless steels were performed in explosive atmospheres of hydrogen, acetylene, ethylene or propane with air. Depending on the gas mixture, kinetic energy of the impact, and applied stainless steel, the dominant ignition sources are either separated particles or hot fric…
Fabrication of ZnO thin film sensor for MIS flexible force feedback device
A flexible MIS(Minimally Invasive Surgery) force feedback sensor is a prospective technology for the extensive application of a Piezoelectric device. The purpose of this study was to know the crystallization of ZnO film for MIS force feedback sensor by sol-gel technology and spin coating. The center of operating frequ…
Porous silicon Bragg reflectors on multi-crystalline silicon wafer with p-n junction
Bragg reflectors consisting of the sequence of dielectric layers are considered to create p-n junction solar cells (SC) with improved efficiency in the longwave spectral range. Bragg mirrors (BM) based on porous silicon (PS) mutilayers at the backside of single crystalline and multicrystalline silicon wafer were forme…
Design of high gain patch antenna with metamaterial structure
A high gain patch antenna with metamaterial structure operating at 12GHz is presented in this work. The proposed metamaterial structure is composed of two layers of copper grids with a square lattice. The electromagnetic characteristics of the proposed metamaterial structure with zero refraction property and the radia…
Improvement in Hydrogen Sensing Response of Zinc Oxide Doped with Platinum
In this work, the effect of Platinum (Pt) as dopant on the structural, morphological and gas sensing properties of ZnO has been discussed. ZnO and Ptdoped ZnO nanoparticles were synthesized by facile and cost effective co-precipitation technique. XRD analysis revealed the formation of hexagonal wurtzite structure for…
Controlled Release of Doxorubicin from Electrospun Gelatin Nanofibers
Electrospinning has been recognized as an effective and inexpensive technique for fabrication of long fibers from various materials including polymers, composites and biomacromolecules with diameters ranging from a few nanometers to few micrometers The electrospun fibers form a unique structure which have a very large…