Materials Literature
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Photoluminescence (PL) intensity of passivated silicon nanocrystals (Si NCs) embedded in a SiO2 matrix is compared with that of unpassivated Si NCs. We investigate the relative enhancement of PL intensity (IR) as a function of annealing temperature and implanted Si ion dose. The IR increases simultaneously with the an…
This paper presents development of conceptual design model of DMFC for a portable application. The target power for the design is 0.4 watt per single cell, with 4 cm2 active area. The current density and fuel cell voltage were fixed to 0.175 A/cm2 and 0.57 V respectively. In order to develop new design, mass and heat…
This study is mainly focused on characterization of nanomembrane using nylon-6 and its blend with poly (e- caprolactine) (PCL). Nylon-6 nanomembrane has been developed using formic acid at four different viscosity levels of 158.4, 420.8, 920.8 and 1417 cPs. Another nanomembrane of nylon-6/PCL (80:20) blend has also be…
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Introduction The present work describes a study in which, based on patient dose measurements, thermoluminescent dosimeters were used to obtain the diagnostic reference level arising from panoramic radiography. Materials and Methods Ten panoramic units and a sample of 15 patients per X-ray unit were studied. Two thermo…
Chicken bones waste is commonly used for the production of animal feed and fertilizer. Fortunately, chicken bones are also rich in collagenous protein that possesses various functional properties. Considering this fact, the aims of this work are to determine the effect of pH and stirring speed on the alkaline extracti…
The global environmental concerns have put the light weighting of structures on the fore front of the research in transportation industry. Among other light weight alloys, the transportation industry is considering magnesium intensive light body-in-white structure in automotive applications. Although the research in m…
A disruptive approach to thermal energy harvesting is presented. The new technique can be used for powering ultra-low power electronics and autonomous systems. We propose a two step conversion of heat into electricity: thermal to mechanical and mechanical to electrical. Devices can work in a wide range of temperatures…
Lo scopo di questo lavoro è stato quello di trovare le migliori condizioni di preparazione del LiFePO4 a partire dal (NH4)FePO4 (FAP). Come fonte di ferro è stato utilizzato il solfato ferroso eptaidrato. Il solfato è stato trasformato in fosfato e precipitato come sale di ammonio. In particolare sono state effettuate…
The properties of metasurfaces comprised of interwoven conductor patterns on dielectric substrates have been examined. The significant reduction of the fundamental resonance frequency fr and expanded fractional bandwidths (FBWs) offered by the intertwined spirals and Brigid’s crosses extended beyond a single unit cell…
The results of the manufacture and research of metal-supported solid oxide fuel cells are presented. As a metal support the porous Ni-Al plates manufactured by self-propagating high temperature synthesis were used. The effect of synthesis conditions and composition of green mixture on the phase composition, microstruc…
In this paper concept of implementation of the soft computing approach is introduced for the environment friendly steel hardening processing unit, i.e. for Plasma Ion Nitriding (PIN) System. In Plasma Ion Nitriding system, a proper and efficient mechanism is required to meet the problem of finding process parameters i…
The X-ray diffraction study of a single crystal with the composition NiTiF6(Ur)2·7H2O is performed, where Ur = C6H12N4 is an urotropine (hexamethylenetetramine) molecule. The compound crystallizes in the triclinic P-1 space group: a = 8.7220(5) Å, b = 9.1004(5) Å, c = 17.533(1) Å, α = 75.074(1)°, β = 88.530(1)°, γ = 6…
Purpose The purpose of this paper is to develop protective coatings containing antifouling compound for steel rebars. Design/methodology/approach In the present study, corrosion and settlement of micro and macro‐fouling organisms on coated and uncoated rebars were investigated. Two different types of coatings were app…
A phase change memory resistance model accounting for the geometry of SET and RESET state is developed. The resistance of the memory cell with different dimensions and boundary conditions is solved using conformal mapping including the current crowding effect. When combining with a proper thermal heating model, the re…
A novel method of preparing the macrporous nickel coating was described. The macrporous nickel coating was fabricated by employing nano-silica as the template. The effects of technological conditions and the concentration of the additives on the surface quality of coating were investigated, the nano-silica was charact…
We characterize the multiple THz superconducting gaps of Fe-based superconducting films form different families. We discuss with special emphasis the role of the film thickness in affecting the structure of the superconducting gaps.
Heterobimetallic complexes [UO2MoV(CH2L)(hzd)(H2O)2] n , [ZnMoV(CH2L)(hzd)(H2O)2] n and mixedvalence complexes [MoVIO2MoV(CH2L)(hzd)(H2O)2] n (where hzdH3 = inhH3, n = 1; slhH3, n = 2) are synthesized from bis(2-hydroxy-1-naphthaldehyde)malonoyldihydrazone (CH2LH4) and monometallic precursor complexes [Mo(CH2LH2)(hzd)…
It is shown that the minimum value of the ratio of relative yield stresses found according to the energy yield criterion in two variants corresponds to the state with the least resistance to plastic deformation. A distinction in the position of the curves corresponding to the relative yield stresses in these variants…
Il lavoro è inquadrato nell’ambito delle attività sul Progetto 3.5 “Risparmio di energia elettrica nei mezzi di trasporto: nuovi materiali e componenti innovativi per i mezzi di trasporto” dell’AdP ENEA-MSE. In particolare questo è il report di progetto “RdS/2012/094” previsto per l’obiettivo C “Life-Cycle Assessment…