Platinum pps
... these conditions The current per carbon particle jsM/q then reduces to the kinetic current (2pnF)(r2n00 k) It is therefore difcult to conclude that there is any diffusional limitation under the ... indicates that it has considerable nobility compared with Fe In the absence of complexing agents, it is stable over the majority of the window of thermodynamic stability water at all pH values Its ... insoluble in the absence of complexing agents, the metal is passive (i.e., the oxide is insoluble) in the higher potential range The next redox step is Ru4ỵ as RuO2 at 0.937 vs HE Again, in the absence...
Ngày tải lên: 06/07/2014, 23:20
... in their microtubulebinding ability and PHF formation [8–10]; the four-repeat and three-repeat isoforms of the tau MBD are a direct result of the presence or absence of R2, respectively [11] Therefore, ... that the helical conformations of R2 and R3 peptides are both sufficiently flexible to change their structures, depending on the hydrophobic and hydrophilic balance of the solvent On the other ... were summed Then, the molar ellipticity was determined after normalizing the sample concentration The same experiment was performed at least three times using newly prepared samples; their averaged...
Ngày tải lên: 23/03/2014, 12:20
Ngày tải lên: 14/11/2014, 07:13
Synthesis and reactivity studies of cyclopentadienyl derivatives of ruthenium iridium and osmium iridium mixed metal clusters 5
... on the crystals revealed them to be stereoisomers with the formulation Cp*IrOs3(μ-H)2(μ-Te-p-C6H4CH3)2(CO)8, differing in the arrangements of their ptolyl telluride groups; they also exhibit ... the three clusters contain a open butterfly cluster IrOs3 metal core with the iridium at one of the wingtips, and a telluride bridging each of the two Os-Os of the Os3 wing Besides the Cp*, the ... forming the hinge The butterfly cluster core is the result of cleavage of an iridium-osmium bond in the parent tetrahedral cluster 3c There is a triply bridging selenium atom along an IrOsOs edge The...
Ngày tải lên: 16/09/2015, 08:30
Synthesis and reactivity studies of cyclopentadienyl derivatives of ruthenium iridium and osmium iridium mixed metal clusters 1
... triruthenium together due to their similarity The interest in the clusters of these metals are attributed to the following properties [5] These clusters are robust (especially osmium), thermally stable ... sites In the case of CO it is the π* orbital which accepts the electron density from metals whereas in phosphines, it has been argued that the P-C σ* orbitals accept the back donation The π-acid ... from lightly stabilized derivatives of the parent carbonyls Ru3(CO)12 and Os3(CO)12 There are no reports of neutral binary carbonyls containing four ruthenium atoms For osmium, the binary carbonyls...
Ngày tải lên: 16/09/2015, 08:32
Synthesis and reactivity studies of cyclopentadienyl derivatives of ruthenium iridium and osmium iridium mixed metal clusters 2
... synthesize Cp*IrRu3 clusters by reacting various Cp*Iridium complexes with triruthenium clusters The reaction of Ru3(CO)12 with acetonitrile in the presence of TMNO led to the formation of the bis ... attributed to the comparatively higher basicity of the Cp* ring The stretching frequency values were comparable to the values of the closely related cluster, Cp*RhOs3(μ-H)2(CO)10 [9] The FAB-MS ... could be assigned to the Cp* group and two broad peaks in the hydride region indicating their non-equivalence and also their fluxional nature On lowering the temperature to 233 K the two broad signals...
Ngày tải lên: 16/09/2015, 08:32
Synthesis and reactivity studies of cyclopentadienyl derivatives of ruthenium iridium and osmium iridium mixed metal clusters 3
... π-bonded to the two wingtip ruthenium atoms The 79 C-C bond of the alkyne was disposed almost parallel to the hinge [(Ru(3)–Ir(1)] of the butterfly The other two products from the reactions were the ... systems, the isomer with the heterometal atom in the hinge was the kinetically favored product and that with the heterometal atom in the wingtip was the thermodynamically stable product The reactions ... that both the nature of the metals and the alkynes played an important role in determining the products and the isomers obtained; the isomer with the heterometal atom in the hinge was the kinetically...
Ngày tải lên: 16/09/2015, 08:32
Synthesis and reactivity studies of cyclopentadienyl derivatives of ruthenium iridium and osmium iridium mixed metal clusters 4
... suggested that the larger the cone angle the greater is the lengthening of the Os-P bonds and the cis Os-Os bonds Furthermore, a larger Tolman electronic parameter (χ) also led to shortening of the Os-P ... interactions between the group 15 ligand and the CO group cis to it on the adjacent metal atom, the M-M bond cis to the phosphine ligand is the longest of the three M-M separations; for the disubstituted ... phosphine derivatives where the substitution occurred at the ruthenium triangle This could be attributed to the fact that in these clusters, the bulky Cp ligand was attached to the unique heterometallic...
Ngày tải lên: 16/09/2015, 08:32
Báo cáo khoa học: An NMR study of the interaction between the human copper(I) chaperone and the second and fifth metal-binding domains of the Menkes protein pot
... MOLMOL [31] the ferredoxin-like babbab fold The RMSD between the backbone atoms for the mean structures of the two families of conformers, excluding the metal-binding loop region and the poorly ... only the copper(I) exchange process The thermodynamic contribution to the formation of the adduct resulting from the formation of copper(I)-bridged heterodimers is not sufficient to stabilize the ... shows that there is no detectable interaction between the tag and the remainder of the protein and that the solution structure of MNK5 is not sensitive to the presence of the tag Recombinant protein...
Ngày tải lên: 30/03/2014, 15:20
dialogue with bakhtin on second and foreign language dialogue with bakhtin on second and foreign language
... just outside the nonpolar region The first functional group serves to direct the inhibitor to the active site of the enzyme; the nonpolar fragment serves to align the inhibitor so that the alkylating ... synthetase The enzyme that catalyzes the synthesis of amylose from ADP-glucose amytal The barbiturate drug, 5-ethyl-5isoamylbarbituric acid, that inhibits the electron transport system between the ... each other only in the configuration about the anomeric carbon of the ring structure The a-isomer has the hydrogen at the anomeric carbon above (and the p-isomer has it below) the plane of the...
Ngày tải lên: 01/06/2014, 01:10
Báo cáo y học: "Characteristics of repair tissue in second-look and third-look biopsies from patients treated with engineered cartilage: relationship to symptomatology and time after implantation" ppsx
... patients had the secondlook biopsy at the time of their follow-up arthroscopy, and seven patients permitted a third-look biopsy at the time of their second arthroscopy These subsequent biopsies were ... analysed Of these, 47 biopsies (67.1%) were harvested from asymptomatic patients who had agreed to biopsy harvesting, despite the fact that they no longer suffered symptoms The other biopsies (n ... APH carried out the patient recruitment, the review of the manuscript, and supervision GA carried out the development of the protocol, the analytical approach, the review of the manuscript and...
Ngày tải lên: 09/08/2014, 13:22
The Scientist and Engineer's Guide to Digital Signal Processing Second Edition
... Analysis 563 Chapter 31 The Complex Fourier Transform 567 The Real DFT 567 Mathematical Equivalence 569 The Complex DFT 570 The Family of Fourier Transforms 575 Why the Complex Fourier ... 123 Mathematical Properties 132 Correlation 136 Speed 140 Chapter The Discrete Fourier Transform 141 The Family of Fourier Transforms 141 Notation and Format of the real DFT 146 The ... Signals 222 Chapter 12 The Fast Fourier Transform 225 Real DFT Using the Complex DFT 225 How the FFT Works 228 FFT Programs 233 Speed and Precision Comparisons 237 Further Speed Increases...
Ngày tải lên: 13/09/2012, 10:21
Techniques for developing content reading skills for the third year students at the university of odonto and stomatology
... that how the reader understands the written texts because the meanings of a word depend on the context in which it appears The closer the reader shares the context with the author, the more he/she ... readers on the way to discover what the author means and to build meaning for themselves at the same time in their own language, their thoughts, and their own view of the world based on their background ... task is not the knowledge of the subject matter but the ways the students can get benefits from reading to the fullest so that they take up their own good reading habits outside the classroom...
Ngày tải lên: 07/11/2012, 14:50
Motivation in learning english speaking of the second year tourism major students at tourism and foreign language department, sao do college of industry
... Almost of them came from Northern provinces of Vietnam The majority of the population is from the countryside The average score of English they got in the entrnace exam ranges from to These students ... speaking and of their comments on the speaking class and their expectations on the textbooks as well as the teachers The questionnaire for the teachers The questionnaire was adapted from the questionnaire ... speak English The two students interviewed revealed that they didn’t like the way the teacher explained the new words or the requirement of the activities They said: “I don’t like the teacher speaking...
Ngày tải lên: 07/11/2012, 15:01
Evaluating the Reliability and Validity of an English Achievement Test for Third-year Non- major students at the University of Technology, Ho Chi Minh National University and some suggestions for chan
... an error Thus, the higher the reliability coefficient is, the lower the standard error is The lower the standard error is, the more reliable the test scores are Types of reliability estimates ... good tests and theoretical ideas on test reliability and validity as well as achievement tests Chapter 3- The study is the main part of the thesis showing the context of the study and the detailed ... reliability indicates the repeatability of a test scores with the passage of time This estimate also reflects the stability of the characteristics or constructs being measured by the test The...
Ngày tải lên: 07/11/2012, 15:05
A study on oral presentation difficulties of second year english majors of phuong dong university in the speaking lessons and solutions
... (3) factors causing their difficulties and their suggested solutions Specifically, the study has been conducted in the form of survey research, with the informants of the study being the sixty two ... difficulties in the classroom setting, the research was aimed at finding out: (1) the students’ assessment of the importance of oral presentation skills in their future work, (2) the problems they might ... Department, Phuong Dong University The survey questionnaire completed by the students was the main instrument employed for the collection of data The research reveals that the students’ low language...
Ngày tải lên: 07/09/2013, 13:02
TECHNIQUES FOR DEVELOPING CONTENT READING SKILLS FOR THE THIRD YEAR STUDENTS AT THE UNIVERSITY OF ODONTO AND STOMATOLOGY
... that how the reader understands the written texts because the meanings of a word depend on the context in which it appears The closer the reader shares the context with the author, the more he/she ... readers on the way to discover what the author means and to build meaning for themselves at the same time in their own language, their thoughts, and their own view of the world based on their background ... comprehension for these reasons: firstly learners not need to read all the words in the text, secondly they can read at their own speed and if they not understand the sentence, they can go back,...
Ngày tải lên: 07/09/2013, 13:45
Using Third-Party Tools and Having Fun with RS.
... Writing the C# Code Well, that’s all we need on the report design front, so add the following code behind Form1.cs to see the barcode report in action: using using using using using using using using ... we need on the front end of the report design Let’s add the following code behind Form1.cs to make our dashboard work: using using using using using using using using using System; System.Collections.Generic; ... and drop the text box item, and add the list item Once the list item is on the design surface, drag and drop the second text box item inside the list item Please set the properties of the various...
Ngày tải lên: 05/10/2013, 08:48