the role of morphology and crystallographic structure of metal oxides

... 9 and 20. It is clear that the width of the necks determines the height of the potential barrier for current carriers, while the length of the necks determines the depletion-layer width of the ... number of oxygen vacancies, and as a result, controls the initial surface band bending (eV s ) of the metal oxide and the change of eVs at replacement of...

Ngày tải lên: 20/03/2014, 13:11

... Stereo figures of the model of the bound substrate in the AD2 E526A mutant (A) and D524A mutant (B). The structures of bound sugars and the side-chains of three acidic residues in the conserved ... causes the distortion and twist- ing of the substrate, so that the glycosidic oxygen faces towards the bottom of the deep cleft. Enzyme–substrate interactions...

Ngày tải lên: 15/03/2014, 11:20

... 2 Risk and Term Structure of Interest Rates • The risk structure of interest rates looks at bonds with the same term to maturity and different interest rates. • The term structure of interest ... over the life of the long-term bond. • Buyers of bonds do not prefer bonds of one maturity over another; they will not hold any quantity of a bond if its expect...

Ngày tải lên: 05/01/2014, 16:56

... Na + and Cl – [1]. The main physiological function of the transporter is believed to be the control of the concentration and dwell time of GABA in the synaptic cleft. Because the transport of one ... important for the GABA transport activity. 1-Deoxymannojirimycin inhibits the GABA-uptake of GAT1 In order to gain further insight into the role of the termi...

Ngày tải lên: 19/02/2014, 17:20

... 4671 Proton transfer in the oxidative half-reaction of pentaerythritol tetranitrate reductase Structure of the reduced enzyme-progesterone complex and the roles of residues Tyr186, His181 and His184 Huma ... 2005) doi:10.1111/j.1742-4658.2005.04875.x The roles of His181, His184 and Tyr186 in PETN reductase have been examined by mutagenesis, spectroscopic and stopped-...

Ngày tải lên: 20/02/2014, 02:21

... Hence, the dependence of k 2 of wild-type and all mutants on the concentration of MgCl 2 was investigated at 278, 283, 288, 293 and 298 K. Table 1. Kinetic and thermodynamic parameters of the reaction ... investigated the dependence of the second- order rate constant of the overall reaction, k 2 , on both NaCl and MgCl 2 concentration. Information about the t...

Ngày tải lên: 21/02/2014, 01:21

... The Office shall, in accordance with the relevant provisions of the Financial Regulations and Rules of the United Nations examine, review and appraise the use of financial resources of the ... organizational structure to assess whether the secretariat has the capacity and the structure to assure proper checks and balances and segregation of duties...

Ngày tải lên: 23/03/2014, 02:20

... to the band edge is the rise time of the B1 TA signal [1]. For the QD and QR sample, the intraband relaxation times were approximately 700 fs and 1100 fs for the QD and QR respectively. The ... electron thermalization [3] [19]. Hot-exciton PV performance relies on the disassociation of the electron and hole before intraband relaxation of the electron an...

Ngày tải lên: 06/05/2014, 08:53

... the first part of the chapter four deals with the semantic features of the adjective Warm through analyzing its grammatical structures. It should be noted that the variety of the meaning of ... Three, the methods and procedures of the 24 study are described. The source of data and how they are analysed are included. Chapter Four presents the findi...

Ngày tải lên: 26/11/2013, 13:21

... features of the WDBs. The finding of the study may be in one way or another beneficial to the language learners since it provides a good background of how to use the meanings of the WDBs appropriately. ... 5: CONCLUSION AND IMPLICATION 5.1. CONCLUSION The basic goal of this thesis is to describe, analyse and contrast the semantic and pragmatic features of...

Ngày tải lên: 26/11/2013, 13:30