Coupling electromagnectic and thermo-hydrodynamic simulations to optimize a vitrification furnace heated by direct induction
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Synthesis and characterization of amphiphilic chitosan derivatives as a nano-carrier for paclitaxel delivery
A series of amphiphilic chitosan derivatives has been synthesized by grafting deoxycholic acid and hydrophilic molecules containing glycidyl group for application in drug delivery. These chitosan derivatives formed stable nanoparticles with sizes ranging from 160-240 nm and zeta potential ranging from 0-25mV respectiv…
Self-Diffusivity and Interdiffusivity of Molten Aluminum-Copper Alloys under Pressure, Derived from Molecular Dynamics
We use molecular dynamics (MD) to simulate diffusion in molten aluminum-copper (AlCu) alloys. The self-diffusivities and Maxwell-Stefan diffusivities are calculated for AlCu mixtures using the Green-Kubo formulas at temperatures from 1000 to 4000 K and pressures from 0 to 25 GPa, along with additional points at higher…
Basic properties of alginate/chitosan microcapsule surfaces and their interaction with proteins
Surface properties such as morphology, composition, wettability and charge of alginate/chitosan (ACA) microcapsules were analyzed. The effects of surface properties on fibrinogen adsorption onto ACA microcapsules and on its in vivo biocompatibility were then evaluated. The results showed that the increase in both surf…
Amide-Hydride Systems for Hydrogen Storage
Introduction to Hydrogen Storage\nH2 from Amide-hydride combinations\nAlkali amidoboranes for hydrogen storage\nAcknowledgement
Reducing TSNAs in Cigarette Smoke by Spindle β-FeOOH
In order to decrease the deliveries of NNN and NNK in cigarette smoke,a hydrolyzate of FeCl3 in the mixture of ethanol and water was characterized by FE-SEM,TEM,BET and XRD.The NNN and NNK contents in the smoke of cigarette samples added with the hydrolyzate to tobacco rod or simulated filter were analyzed.The results…
Confined Three-Dimensional Plasmon Modes inside a Ring-Shaped Nanocavity on a Silver Film Imaged by Cathodoluminescence Microscopy
The confined modes of surface plasmon polaritons in boxing ring-shaped nanocavities have been investigated and imaged by using cathodoluminescence spectroscopy. The mode of the out-of-plane field components of surface plasmon polaritons dominates the experimental mode patterns, indicating that the electron beam locall…
Photo-physics and applications of colloidal quantum dots
The work presented in this thesis was submitted to The University of Manchester for the degree of Doctor of Philosophy in June 2010 by Stuart K Stubbs and is entitled ?Photo-physics and applications of colloidal quantum dots?. In this thesis the results of spectroscopic studies on various colloidal quantum dots, parti…
Uncompensated magnetization and exchange-bias field in La$_{0.7}$Sr$_{0.3}$MnO$_3$/YMnO$_3$ bilayers: The influence of the ferromagnetic layer
We studied the magnetic behavior of bilayers of multiferroic and nominally antiferromagnetic o-YMnO$_3$ (375~nm thick) and ferromagnetic La$_{0.7}$Sr$_{0.3}$MnO$_3$ and La$_{0.67}$Ca$_{0.33}$MnO$_3$ ($8 \ldots 225~$nm), in particular the vertical magnetization shift $M_E$ and exchange bias field $H_E$ for different th…
TISSUE REGENERATION: CURRENT CONCEPTS IN PERIODONTICS
Tissue Engineering is the use of a combination of cells, engineering and materials methods, and suitable biochemical and physio-chemical factors to improve or replace biological functions. Tissue engineering can hence be defined as “understanding the principles of tissue growth, and applying this to produce functional…
Carbon nanotube characterization: Optical Visualization of Carbon Nanotubes—a Unifying Linkage Between Microscopic and Spectroscopic Characterization Techniques (Small 18/2010)
The cover picture shows an optical dark-field microscopy image under normal white light illumination of single-walled carbon nanotubes (SWCNTs) deposited on Si/SiO2 substrates spin-casted from an aqueous detergent solution. The opaque bilayered substrate enables the visualization of the 1D nanoscaled objects, revealin…
Erratum: Dielectric response to the low-temperature magnetic defect structure and spin state transition in polycrystalline LaCoO3 [Phys. Rev. B79, 125105 (2009)]
We have found an error in Fig. The label of the vertical axis of the main graph of Fig. The corrected label should read "Magnetization M in 10 -4 emu mol -1 ." No other aspects of the paper are affected by this change.
1-Aminopyridinium triiodidoplumbate(II)
The title complex, (C(5)H(7)N(2))[PbI(3)], consists of a 1-amino-pyridinium cation, disordered about a mirror plane, and a [PbI(3)](-) anion. The Pb(2+) ion (site symmetry ) is surrounded by six I atoms in a slightly distorted octa-hedral coordination. The PbI(6) octa-hedra share faces, building up (∞) (1)[PbI(6/2)] c…
Water absorption and ion exchange properties of some derivatives of peroxyacid viscose grade pulp
Purpose The purpose of this paper is to study some chemical reactions of viscose grade pulp (alpha cellulose around 96 per cent) prepared by preoxyacetic acid pulping of bagasse for the preparation of some cellulose derivatives. Design/methodology/approach Viscose grade pulp was prepared by using ecological chemicals.…
Cover Picture: New Insight into the Conventional Replacement Reaction for the Large‐Scale Synthesis of Various Metal Nanostructures and their Formation Mechanism (Chem. Eur. J. 35/2010)
New insights into a conventional replacement reaction for the large-scale synthesis of various metal nanostructures have been described in the Communication of X. Sun et al. on page 10630 ff. Further, the growth processes of various metal nanostructures (e.g., Ni) have been systematically investigated, and the key fac…
Estudo comparativo da deformação a frio e da resistência à corrosão nos aços inoxidáveis austeníticos AISI 201 e AISI 304.
A crescente demanda de aplicaes de aos inoxidveis austenticos e a constante presso para reduo de custo nas empresas siderrgicas, devido alta volatilidade no custo do nquel, resultaram em novos desenvolvimentos de aos da srie 200.
Recent topics on metastability, hysteresis, avalanches, and acoustic emission associated to martensitic transitions in functional materials
We review some results for the dynamics of first-order phase transitions in functional materials. We especially focus on simple models of athermal evolution in driven ferromagnets that give a global picture of metastability and hysteresis, showing that first-order phase transitions in such systems proceed by avalanche…
Pseudo-gap and vertex correction of electron-phonon interaction
The strong-coupling Eliashberg theory plus vertex correction is used to calculate the maps of transition temperature (Tc) in parameter-space characterizing superconductivity. Based on these Tc maps, complex crossover behaviors are found when electron-phonon interaction increases from weak-coupling region to strong-cou…
Etude de l'influence du vieillissement en phase B sur la dégradation de l'effet mémoire de forme dans les alliages Cu-Al-Ni
Les alliages Cu-Al-Ni sont les seuls a posseder une temperature de transformation allant jusque 200°C. Ceci leur confere un avantage par rapport aux alliages Cu-Al-Zn ou Ti-Ni dont les temperatures de transformation ne depassent pas 100°C.Neanmoins, un chauffage temporaire au dessus de 200°C peut provoquer une perte d…
Modélisation d'éléments de structure en béton armé dégradés par corrosion : la problématique de l'interface acier/béton en présence de corrosion
Une des causes majeures responsables de la perte de performance des ouvrages en béton armé (fissuration excessive, perte de capacité portante) peut être imputée à la corrosion des armatures présentes dans les éléments structuraux. Ce phénomène est susceptible de se développer soit par carbonatation, soit par pénétrati…