1examples of metal metal interfaces

... parents iv Table of Contents Table of Contents v List of Tables viii List of Figures ix Acknowledgements xiv Abstract xv Introduction 1.1 Metal- on-organic and organic-on -metal interfaces ... field-effect transistor (OFET) Though generally called metal- organic (MO) interfaces, metal- on-organic (M/O) interfaces are usually quite different from organic-on -metal (O/M) interfaces both in physical ... characterization of this kind of metal/ organic /metal sandwich structures also gives nearly identical behavior for the M/O and O/M interfaces [1–3] In contrast, the effects of metal diffusion on...

Ngày tải lên: 11/09/2015, 08:59

... wastewater and urban storm water runoff, contained high concentrations of lead and zinc Table summarizes the results of all the target metals in this study Concentration of metals like copper and nickel ... on the uniform distribution of these metals in the sediments of the lake The higher concentration in the northwest part of the lake is probably due to reverse flow of the polluted Pasig River ... measurement of other samples Heavy metals were extracted using the aqua regia digestion method Approximately 0.5g of dry sediment samples was acid-digested using ml of concentrated nitric acid and ml of...

Ngày tải lên: 05/09/2013, 09:08

... according to incremental areas of influence of the monitoring stations Delineation of the areas of influence of monitoring stations Delineation of the area of influence of each monitoring station ... initial volume of 10 ml with metal- free water and stored at 4°C The concentration of metals in water was analyzed using an atomic absorption spectrometer The quantification of metals was based ... influence of censored data UPL95 should approximately provide the 95% probability interval of future values of a set of samples and can be used to estimate the exposure-point contamination of the...

Ngày tải lên: 05/09/2013, 10:15

... middle layer (r=rfront) of metal hydride reactor is the position of the hydration front The outer layer (r=router) of metal hydride reactor is responsible for supporting the metal hydride powder ... conductivity of hydriding alloy powders and comparisons of reactor systems”, Journal of the Less-Common Metals 1980, 74, 175–184 [5] F S Yang G X Wang, Z X Zhang, X Y Meng, V Rudolph, “Design of the metal ... effective thermal conductivity in metal hydride and heat of formation of hydride, respectively The two equations (16) and (19) are the simplified mathematical model of metal hydride reactor bed The...

Ngày tải lên: 05/09/2013, 14:58

... Q 14 Solidification(Pure Metals) Fluidity: A measure of the capability of a metal to flow into and fill the mold • Factors affecting fluidity - Pouring temperature, Metal composition, Viscosity, ... (Inverse of viscosity) Transformation of molten metal into solid state • Solidification differs depending on a pure element or an alloy • For Pure Metal Heat transfer to the surroundings, Heat of fusion ... Solidification of Pure Metals Dendrite Growth • A thin skin of solid metal is formed at the cold mold wall immediately after pouring • Skin thickness increases to form a shell around the molten metal...

Ngày tải lên: 16/01/2014, 11:37

... reactivity of metal thiolate clusters, normally concerning all metallothioneins, are given In the case of Zn (and Cd) the metal is bound by thiolates (i.e deprotonated thiol groups of cysteine) ... Thiolate is a soft ligand and therefore shows a preference for soft metals Moreover the structures of metallothioneins are not rigid and hence there is little selectivity concerning the size of the ion ... size of the ion Thus, the affinity of the different metal ions in MTs is governed primarily by the thermodynamic stability of the thiolate metal bond Therefore, soft metals such as Cu(I), Cd(II),...

Ngày tải lên: 16/02/2014, 15:20

... volume of metal [5] It is valid at extremely low rcur, being of the order of few millivolts, and it can be neglected except in some special cases, like the stability of the shape of the tips of dendrites ... of powders are also discussed It is shown that the hydrolysis of metallic ions is the most important factor leading to the deposition of metal powders from aqueous solutions This new volume of ... ICTM-Institute of Electrochemistry, University of Belgrade, Belgrade, Serbia Konstantin I Popov ICTM-Institute of Electrochemistry, University of Belgrade, Belgrade, Serbia Faculty of Technology and Metallurgy,...

Ngày tải lên: 21/02/2014, 18:20

... Modulation of metal availability for treating AD P J Crouch et al of soluble Ab present in the cell culture medium Metal- CQ treatment decreased the levels of extracellular Ab not by preventing an Ab metal ... the form of a substantial increase in the levels of extracellular metals and a decrease in the levels of intracellular metals Here, we have presented evidence to show that decreased metal bio-availability ... and these metals can promote the formation of Ab oligomers, aggregates and fibrils [48,52–55] Metal mediated oligomerization of Ab may therefore contribute to the potent inhibition of synaptic...

Ngày tải lên: 07/03/2014, 10:20

... samples of both unspiked and metal spiked sludge were drawn for chemical analysis Results and discussion 3.1 Properties of sludge Metal spiking and incubation of sludge led to decrease the pH of sludge ... and metal spiked samples of sludge were determined in HF–HClO4 digest by atomic absorption spectrophotometry [14] The total content of these metals in both unspiked and metal spiked samples of ... Higher content of the F3 and F5 fractions of heavy metals could explain the lower concentration of heavy metals in F2 and F1 fractions [19] This might be ascribed to the presence of unoxidized...

Ngày tải lên: 16/03/2014, 00:07

... formation of ordered metallic assemblies at the nano-scale have involved the strepavidin protein array of a 2D array of biotinylated DNA, followed by metallization of the array [17] Use of the naturally ... synthesized at a relatively low cost 318 One of the early applications of DNA for the formation of nanowires, in 1998, involved the metallization of dsDNA between two electrodes to form conductive ... described for DNA oligomers Use of cytoskeletal elements for the assembly of nanowires Another interesting use of naturally occurring fibers for metal deposition is the use of cytoskeletal elements Various...

Ngày tải lên: 16/03/2014, 12:20

... the bulk of the grain becomes comparable with the number of surface collisions; the latter may be influenced by Conduction Model of Metal Oxide Gas Sensors 147 Fig Schematic representation of compact ... influence of electrode-sensing layers contacts RC is the resistance of the electrode-SnO2 contact, Rl1 is the resistance of the depleted region of the compact layer, Rl2 is the resistance of the ... Model of Metal Oxide Gas Sensors This together with Eq (5) allows the determination of n S and θ as a function of only partial pressures ( pO2 ), temperature T , ionisation and chemical state of...

Ngày tải lên: 19/03/2014, 16:47

... resistance of 1H is smaller than that of 2H, the resistance of 1a is larger than that of 2a It turns out that the TiO –Pt film is a little more reduced than the TiO film, but the resistance of the ... with that in 3% H 2rAr Although the resistance of 3H is the same order of magnitude as that of 1H, the resistance of 3a is extremely lower than that of 1a This means that the film fired in 3% H ... The increase of the temperature at which the degradation occurs is advantageous to doping of other metal component and control of microstructure or crystalline phase in the noble metal- TiO based...

Ngày tải lên: 19/03/2014, 16:48

... in the presence of 10 ppm of ammonia as a function of the working temperature and number of interruptions of the deposition process Number of interruptions Fig Sensor response of rf sputtered ... different special regimes can be used In the first one the formation of “extra” interfaces in the body of the metal film occurs as a result of the sputtering power density being changed during film deposition ... deposited on top of silicon wafers by reactive rf magnetron sputtering using a ESM100 Edwards sputtering system A metal target of 99.95% purity with a diameter of 100 mm and thickness of 3.175 mm...

Ngày tải lên: 20/03/2014, 13:05

... field of portable devices The working principle of a typical resistive metal oxide gas sensor is based on a shift of the state of equilibrium of the surface oxygen reaction due to the presence of ... noble metal clusters accumulate at the step edges of metal oxides (see Fig 31) Due to this behavior of noble metals, an increase of terrace area should be accompanied by an increase in the size of ... process of coalescence starts through the breaking of Me-atoms bonds with the lattice of metal oxides, in Ref [77] it was assumed that the formation energy of surface and bulk vacancies of Me-atoms...

Ngày tải lên: 20/03/2014, 13:11

... transfer en~rles The g r ~ r for METAL consists of over 600 augmented p h r a s e s~ructure rules, each of w h i c h is u s e d in b o t h analysis and trans fer/generatlon METAL' s gr~-~-r rules are ... are used in the p a r s i n g of all levels of structure from the word level to the sentence level, including phrases and clauses A METAL grammar rule consists of five analysis sections, plus ... (with an optional enumeration of each constituent); a series of restrictions, w h i c h test the appropriateness of individual constituents on the right-hand side of the rule; TESTs, which enforce...

Ngày tải lên: 01/04/2014, 00:20

... Figure Plot of liquid–vapor interface temperature as a function of interface velocity phase explosion As the time scales of interest are very small of the order of ns— the maximum amount of vaporization ... collisions Qiu and Tien [5] have calculated the value of t to be of the order of 10 fs for gold In this study, the pulse widths are of the order of 100 fs, which is much longer than t, and the temperatures ... PROCESSING OF METAL 221 Figure Three stages of energy transfer during femtosecond laser irradiation (adapted from [2]) Kuo and Qiu [10] extended the PTS model to simulate the melting of metal films...

Ngày tải lên: 06/05/2014, 08:53

... experience decomposition FIG 13 Positions of groups of atoms at laser fluence of 0.3 J / cm2 FIG 14 Thermodynamic trajectories of groups of atoms at laser fluence of 0.3 J / cm2 165415-11 PHYSICAL REVIEW ... 14 165415-12 MECHANISMS OF DECOMPOSITION OF METAL DURING… PHYSICAL REVIEW B 72, 165415 ͑2005͒ FIG 16 Positions of groups of atoms on T-␳ diagram at 45 ps at laser fluence of 0.25 J / cm2 FIG 18 ... from the thermodynamic trajectories of groups of atoms Figure 18 shows the thermodynamic trajectories of several groups of atoms The locations of these groups of atoms at 90 ps are marked in Fig...

Ngày tải lên: 06/05/2014, 08:55

... aquarium pump Method of Synthesis of metal oxides Fig Flow diagram of the synthsis process of Pd+CuO 92 Inorganic Nanomedicine: Synthesis, Characterization and Application Preparation of Pd (0)-water ... number of chemicals used and energy requirement leading to reduction in the cost of making the traditional Bhasmas containing the metal oxides Consequently the use of sonochemical technique could offer ... Application of Ayurveda Bhasmas preparation is a time-consuming and complicated process involving the purification and grinding together of a number of herbs, juices, along with metal/ metal compounds...

Ngày tải lên: 11/06/2014, 12:29

... the noble metals so far Therefore, macroporous Si has not yet been employed as a template for the electrochemical deposition of noble metal tube Noble metal tube is achieved with the use of Si nanowires ... to release metal tubes from Si nanowires Afterward, the metal tubes were extracted via centrifugation, and were rinsed with ethanol until the pH value of solution equaled Finally, the metal tubes/ethanol ... http://www.nanoscalereslett.com/content/6/1/165 Page of Figure (a-c) The bird’s-eye view of SEM images of Au tube deposited on an ordered array of Si nanowires The rectangle in (a) encloses a region...

Ngày tải lên: 21/06/2014, 05:20

... ligands, which acted as bridges connecting metal ions and CNMs Our methods can be applicable for a large variety of metal ions By adopting bi -metal or even tri -metal precursors in a certain mole ratio, ... Nanotubes for Detection of Every Nanotube by Surface-Enhanced Raman Spectroscopy J Am Chem Soc 2009, 131:14310 13 Li J, Tang SB, Lu L, Zeng HC: Preparation of Nanocomposites of Metals, Metal Oxides, and ... efficiency of Fe2O3/SWNTs nanohybrids with a current density of 150 mA g-1 Page of Zhao et al Nanoscale Research Letters 2011, 6:71 http://www.nanoscalereslett.com/content/6/1/71 Page of Figure...

Ngày tải lên: 21/06/2014, 06:20