[PDF] Top 20 Un nuevo modelo para el análisis financiero interregional
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Study the effect of Mn 2+ ions on the ac electrical properties of some iron doped phosphate glasses
... and electrical properties of transition metal ions in glass have made it possible not only to interpret the energy levels involved in the observed transitions and the type of conduction mechanisms, ... See full document
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Effects of Dopant Ions on the Properties of Polyaniline Conducting Polymer
... the effect of nicotinic acid (NA) and 2-methylnicotinic acid (MNA)on the synthesis and properties of conducting polyaniline ...(H 2 SO 4 ), nicotinic acid (NA), and 2-methylnicotinic ... See full document
9
Study on the role of manganese ions on physical and structural properties of alumino-phosphate glasses by means of spectroscopic analysis
... as Mn 3+ in borate glass with octahedral coordination whereas in silicate and germanate state with both octahedral and tetrahedral coordination ...and Mn 3+ are well known paramagnetic ions are ... See full document
18
Physical and Optical Properties of Mn(II) doped P2O5-ZnO-CaO Glasses
... resistant. Glasses containing transition metals like Cr 3+ , Mn 2+ posses better semiconducting properties and hence these are used for several applications such as memory switching, ... See full document
52
Structural, optical and magnetic properties of samarium doped zinc phosphate glasses embedded with nickel nanoparticles
... Ni 2+ ions in octahedral sites exhibit several strong absorption bands in the visible and NIR regions (Zannoni ...zinc phosphate glasses (Feng et.al., 2011). Therefore a study on Ni NPs ... See full document
9
Luminescence Properties of Oxyfluoride Glass and Glass Ceramic Doped with Y3 + Ions
... In PL spectra, it is observed two bands at about 422 and 429nm accompanied by other weaker peaks. The peaks at about 420 nm are attributed to the electronic transitions within the 4d orbitals. In other words, Y 3+ led to ... See full document
17
Mechanical Properties Enhancement due to Network Modification by different Alkali Ions at Equal Concentration Doped in Borate Glasses An Ultrasonic Investigation at 10MHz on the Phenomenon “Mixed Alkali Effect”
... elastic properties are particularly suitable for describing glasses because they give some information about the microstructure and the dynamics of ...ultrasonic study of the borate lithium ... See full document
7
The Porosity Effect on the Electrical Resistivity Properties of Geologic Formations: A Table Top Basket Test Approach
... The electrical resistivity values for the stated instances were correlated to establish relationship and effects of porosity and water saturation with the electrical resistivity properties of a ... See full document
104
Optical Parameters and Electrical Transport Properties of Some Barium-Sodium-Borate Glasses Doped Bismuth Oxide
... The properties of borate glasses modified with alkali oxide show a nonlinear behavior when alkali oxide was gradually ...utilizing electrical conductivity during glass network, infrared spectroscopy ... See full document
12
Optical properties of ytterbium ion doped phosphate glass prepared by sol-gel method
... Spectroscopy in the wavelength range of 200nm-800nm. The glass transmission characteristic has been investigated using Infrared (IR) and Raman Spectroscopy. It is found that all glasses are amorphous in nature ... See full document
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The influences of the presence of ions counter on the removal capacity fluorides ions by chitosane
... the study of the influence of the presence of ions -counter on the ability of removing fluoride ions by ...this study, we observed that a NO 3 - and HCO 3 - share are the real competitors to ... See full document
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Effect of Divalent Metal Ions on the Structure, Optical and Mechanical Properties of KAP Single Crystals
... The energy dispersive X-ray diffraction was carried out in IWCA 200 system connected to a LEO – stereo scan 440 scanning electron microscope. EDAX spectra of KAP, Co: KAP, Ni: KAP are shown in Fig.3a, 3b and 3c ... See full document
10
Physical and spectroscopic properties of lithium-borosulfophosphate glasses doped with dysprosium and europium ions
... Satu kajian telah berjaya dijalankan pada sistem kaca lithium-borosulfophosphate untuk menentukan pengaruh ion-ion dysprosium dan europium ke atas sifat-sifat fizikal dan spektroskopi. Sampel kaca telah di sintesis ... See full document
41
Effect of the addition of mixture of plant components on the mechanical properties of wheat bread
... nical properties of bread can be used to determine changes in the properties of it during storage, as well as to determine the effect of various additives on the bread ...this study was to ... See full document
11
Effect of Silver-Doped Phosphate-Based Glasses on Bacterial Biofilm Growth
... Ca2+ release profiles showed a decrease with increasing silver content from Ag3 to.. anion released to the greatest extent, but there were no significant differences between.[r] ... See full document
7
The effect of chlorination of nucleotide bases on the conformational properties of thymidine monophosphate
... недавние исследования по выведению бак- терии escherichia coli, в Днк которой тимин был замещен 5-хлорурацилом, что почти не по - влияло на нормальную жизнедеятельность и на деление бактерий, но привело к значитель - ... See full document
140
Structural, luminescence properties and Judd-Ofelt analysis of rare-earth doped calcium-sulfoborophosphate and barium-sulfoborophosphate glasses
... Furthermore, phosphate glasses have limitations in their optical ...sulphate ions into the phosphate network improved the rare earth optical performance of borophosphate ...radiative ... See full document
6
The Effect of recycled polymethylmethacrylate...
... The value of mean of modelling wax with additive and control and Multiple analysis range test for flow test, needle penetration test and linear thermal expansion are shown in Figure (5).So modelling wax with the ... See full document
19
Iron phosphate glasses: Bulk properties and atomic scale structure
... bulk properties (such as density, glass transition temperature, linear thermal expansion) of caesium loaded IPG when the Cs is partly or completely replaced with ...the effect of complete conversion to Ba ... See full document
179
Studying the Effect of Nicl2 Addition on the Optical Properties of Synthesized Chitosan
... In this research natural bio polymer “chitosan” was synthesized using fish shells, Chitosan is made from chitin by a chemical process involving demineralization (DA), deproteinization (DP) and deacetylation (DA). ... See full document
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