Materials Literature
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PURPOSE: To provide a method for calculating the transmission of any broad photon beam with a known energy spectrum in the range of 20-1090 keV, through concrete and lead, based on the superposition of corresponding monoenergetic data obtained from Monte Carlo simulation. METHODS: MCNP5 was used to calculate broad pho…
The plasma and microwave surface treatments of carbon nanotubes that loaded on plastic substrates were carried out with expecting a change of carbon nanotube dispersion by increasing treatment time. The microwave treatment process was undergone by commercial microwave oven (800 W). The electrical property was measured…
We fabricated quaternary compound, Cu2ZnSnSe4, films by co-evaporation of copper, tin and zinc selenide precursors in a selenium atmosphere and deposited the samples on soda-lime glass substrates. From the x-ray diffraction data, we established that the phase that characterizes the compound is sensitive to changes in…
A comparative study of magnetic properties using the method of magnetometry with vibration magnetometer and spectra of electron paramagnetic resonance (EPR) nanocomplexes (NCs) of nanoparticles Fe2O3, Fe3O4and antitumor antibiotic doxorubicin (DOXO) have shown that changes in saturation magnetic moments are similar to…
The evolution of the magnetic properties of composite Al2O3/Co(P) particles during ball milling and dynamic compaction is investigated. To prepare starting composite particles, the Al2O3 granules were coated with a Co95P5 shell by electroless plating. The magnetic and structural properties of the composite particles a…
Two types of poly-para-phenylene (PR-120 as an extrusion and PR-250 as an injection moulding grade) were previously investigated with regard to their thermal, rheological and mechanical properties. In the last part of this paper series, the tribological properties, in particular the scratch resistance and wear under a…
In this paper, we present a study on electrical and optical characteristics of n-type tin-oxide nanowires integrated based on top-down scale-up strategy. Through a combination of contact printing and plasma based back-channel passivation, we have achieved stable electrical characteristics with standard deviation in mo…
Structure and properties of Ti–7.5Mo alloy are found sensitive to the solution treatment of the alloy. The alloy solution-treated for 1 min is comprised of equi-axed, retained β phase mixed with fine, acicular-shaped α′ phase, while the alloy treated for longer times primarily has an orthorhombic, fine acicular α″ pha…
Penampang lintang makroskopik memiliki peranan penting dalam menghitung transport neutron yang terjadi pada reaktor nuklir. Hasil penampang lintang digunakan untuk menghitung nilai distribusi fluks neutron yang terjadi di teras reaktor. Penelitian ini menampilkan nilai penampang lintang makroskopik total dari sebuah s…
Petroleum coke (PC) was expanded by using KMnO4 as oxidant and HNO3 as intercalator so as to decrease the amount of KOH needed for the successive activation. The expanded PC (EPC) was activated at KOH / coke mass ratio of 3:1, 4:1 and 5:1. The products were denoted as EAC-3, EAC-4 and EAC-5, respectively. As a compari…
No AccessPolymer ExtrusionApr 2014Extruder Screw DesignChris RauwendaalChris RauwendaalSearch for more papers by this authorhttps://doi.org/10.3139/9781569905395.008SectionsAboutPDF ToolsAdd to FavoritesDownload CitationTrack CitationsCopy LTI LinkPDF key 'share (en)' returned an object instead of string.FacebookTwitt…
In this study, we developed AlN thick film on metal substrate for hybrid type LED package such as chip on board (COB) using metal printed circuit board (PCB). Conventional metal PCB uses ceramic-polymer composite as electrical insulating layer. Thermal conductivities of such type dielectric film are typically in the r…
In this study, we investigated the performance of dye-sensitized solar cells (DSSCs) with the ruthenium (Ru) coated multi-walled carbon nanotube (MWCNT) on the counter electrode (CE). High purity MWCNT (0.01~0.06 g) was sprayed on glass/fluorine-doped tin oxide (FTO). Then 30 nm-thick Ru thin films were coated on a MW…
In this article, the nanoparticle-dye systems is designed and simulated to illustrate the possibility of enhancement in optical imaging contrast. For this, the firefly optimization technique is used as an optical signaling mechanism among agents (nanoparticle-dye) because fireflies attract together due to their flashi…
This study focuses on MWCNT/polymer composites with flexible, anisotropic heat transporting properties. For this study, an immiscible polymer blend of MWCNT/PS and LDPE (13.5:86.5 v:v) were used as a template. MWCNT/PS composites were first prepared by a solution process, and then melt-blended with LDPE using a braben…
We fabricated cisplatin-incorporated nanoparticles using block copolymer composed of methoxy poly(ethylene glycol) (MPEG) and poly(L-glutamic acid) (PGA) (abbreviated as GE). For synthesis of block copolymer, MPEG was directly conjugated to the terminal amine of PGA. Cisplatin-incorporated nanoparticles was prepared b…
The aliphatic polyesters PLLA (poly L-lactic acid) and PBSA (poly (butylene succinate)-co-(butylene adipate)) were used to fabricate nonwoven-type scaffolds with sub-micrometer fiber diameters via an electrospinning method. The electrospun membrane surfaces were further coated with either γ-PGA (poly-γ-glutamic acid)…
Partially oxidized Si nanowire (NW) arrays have been achieved via a combinatorial process of selectively etching Si wafer to obtain vertically aligned single crystalline Si NW arrays and subsequent in situ partially oxidizing the as-etched bare Si NWs. The resultant Si products are Si-SiOx nanocable-like structures co…
Polymer-capped silicon nanoparticles (Si NPs) were prepared using poly(vinylpyrrolidone) (PVP) as a protection layer to minimize the surface oxidation of the surface. The wet synthetic procedure were performed at room temperature via a one-pot synthesis. The PVP capped Si-NPs were characterized by thermo gravimetric a…
Aim. Selection of the optimal scaffold for the creation of tissue engineering constructs is a key challenge of biotechnology. In this study we investigated the biocompatibility of human adipose derived mesenchymal stromal cells (MSCs) within the three-dimensional matrices based on the chitosan with a different degree…