hydrogen and proton transport properties of nanoporous zeolite micromembranes

... determining the microstructure, magnetic and transport properties of the magnetic oxide thin films (2) A whole picture of the structure and magnetic properties of half metallic magnetite (Fe3O4) thin ... 1STRUCTURE, MAGNETIC AND TRANSPORT PROPERTIES OF MAGNETIC OXIDE MATERIALS & EXPLORATION OF MAGNETIC OXIDES\SEMICONDUCTOR (ZnO) HETEROSTRUCTURES HUANG XUELIAN (B.E., UNIVERSITY OF SCIENCE AND TECHNOLOGY, ... (black) and out of plane (red) hysteresis loops of CoFe2O4 deposited at temperatures from 150°C, 250°C, 350°C and 550°C on glass substrates 90 Figure 4 10 In plane (black curve) and out of plane...

Ngày tải lên: 09/09/2015, 10:15

... Trang 1TRANSPORT PROPERTIES OF A GaAs/InGaAs/GaAs QUANTUM WELL: TEMPERATURE, MAGNETIC FIELD AND MANY-BODY EFFECTS TRUONG VAN TUANa,b, NGUYEN QUOC KHANHa,†, VO VAN TAIa AND DANG KHANH ... InGaAs-based QW’s Because electronic devices are often operated at room or higher temperature, calculations and measurements of temperature-dependent transport properties including magnetoresistance in ... values of carrier density and QW width are very useful tool in determining the key scat-tering mechanisms and system parameters [6–14] To the author’s knowledge, up to now, no calculation of transport...

Ngày tải lên: 17/08/2020, 20:58

... permeabilities of O2, N2, and CH4 increased proportionally to the amount of open-ended CNTs in the polymer matrix [23] Li and his co-workers prepared MMMs from Matrimid and a combination of CNT and graphene ... to the best of our knowledge Therefore, the aim was to investigate the effect of TiNT on the gas transport properties of PPO and PBI membranes It was found that the incorporation of non-modified ... WAXS diffractogram of PDA-TiNT, PBI, and PBI with 6 wt.% of PDA-TiNT Table 2Tgof neat polymers and MMMs Sample Amount of PDA-TiNT in membrane T g (°C) Trang 7forces [50] In case of weaker interactions,...

Ngày tải lên: 04/12/2022, 10:33

... both in shape and in dimension to the fibrils of hTTR and sbTTR formed by heating The thick and straight morphology of heat-induced fibrils of hTTR, sbTTR and ecTRP is similar to that of amyloid fibrils ... properties of sbTTR and ecTRP in vitro, and compared the results with those of hTTR Our results showed that hTTR, sbTTR and ecTRP can form fibrillar structures, but under different solu-tion and ... 14 and 15 hydrogen bonds are formed at the monomer–mono-mer interface of sbTTR and hTTR, whereas only eight are formed in ecTRP Five hydrogen bonds are formed across the dimer–dimer interface of...

Ngày tải lên: 16/03/2014, 01:20

... various binding modes of those analogs is identical to that of ASM [8], and analyses of these modes indicate that the chemical nature of each analog may dictate the properties of its binding mode ... strandsÕ) and the A- and the P-loops (that are the stemloops of helices H80 and H92) The second (middle) shell includes helices H80 and H92, the stems of the A- and the P-loops, H74 and H90 The outer ... relevance Analysis of the properties of this region illuminated a unified mechanism for the formation of the peptide bond, the translocation of the tRNA molecules and the entrance of nascent proteins...

Ngày tải lên: 23/03/2014, 17:22

... deter- mination of both thermodynamic and kinetic properties of NR1, and as we have shown for CPR and P450 BM3 (23,24,28) the properties of the flavin binding domains of NR1 are likely to mimic the redox properties ... Determination of the redox potentials and electron transfer properties of the FAD- and FMN-binding domains of the human oxidoreductase NR1 Robert D. Finn 1 , Jaswir Basran 2 , Olivier Roitel 2 , C. Roland ... the FAD/NADPH domain to the FMN domain, and (b) the thermodynamic properties of the FMN domain in CPR and nitric oxide synthase. Despite overall structural resemblance of NR1 and CPR, our studies reveal...

Ngày tải lên: 23/03/2014, 21:20

... electrochemical etching could offer superior RIfS properties for chemical and biological sensing [15-19] The ultimate advantage of a nanoporous RIfS platform is the provision of a three-dimensional ... detection of reflected optical signal, and PC for the quantification/presentation of signal by fast Fourier transform [FFT] analysis Reflection of white light at the top and bottom of the AAO ... essential to have a better understanding of how pore structures influence RIfS properties Hence, the aim of this work is to explore the impact of structural parameters of AAO on RIfS response with...

Ngày tải lên: 21/06/2014, 17:20

... bound of the quotient of two geometrical means of natural numbers was established Journal of Inequalities and Applications in as follows: 1/n n k i k 1i n m k i k i n ≤ 1/ n m n k m k , 1.2 and ... parameter α For convenience of the readers, we recall the definitions and basic knowledge of convex function and logarithmically convex function Journal of Inequalities and Applications Definition ... Guo and Qi in The extensions and generalizations of this problem can be found in 3–5 and some references therein Using Stirling formula, for all nonnegative integers k, natural numbers n and...

Ngày tải lên: 22/06/2014, 02:20

... the mechanical, thermal, and water absorbent properties of the composite In addition, the properties of the composite will be unlike those of the pure polyethylene because of variations in the filler ... effects of filler loading on the mechanical, morphological, and water absorbent properties of this composite were investigated Two types of fibers were used, namely treated fibers (where some of the ... position and orientation of the reinforcement Significantly, constituents of the composites retain their individual, physical and chemical properties Yet together they produce a combination of qualities...

Ngày tải lên: 07/08/2014, 14:20

... systematic research of the dielectric,piezoelectric and ferroelectric properties contribute further understanding ofthe physical properties of the multi-component ceramics based on PZT andthe relaxor ... EFFECTS OF CuO, Fe 2 O 3 ONPROPERTIES OF PZT–PZN–PMnN CERAMICS 4.1 Effect of Fe 2 O 3 on properties of PZT-PZN-PMnN ceramics To improve the mechanical quality factor Qmand dielectric loss tanδ ofPZT-PZN-PMnN ... at the PZT content of 0.8 mol and then rapidly decrease Thegrain size and the density of ceramics have a strong effect on dielectric,piezoelectric and ferroelectric properties of ceramic materials...

Ngày tải lên: 04/12/2014, 02:54

... coupling strength and is best suited only molec-to study transient transport Exact treatment of anharmonic systems has been one of the holy grails of such transport theories and some of the most exciting ... NEGF and quantum molecular dynamics In the last part of this thesis, we look at the field of spintronics, wherethe main quantity of interest is the transport of spins First we studyspin transport ... study of transport through nano and molecular junctions has beenone of the most intriguing and challenging tasks of condensed matter physicsfor the past 50-60 years Typical experimental transport...

Ngày tải lên: 08/09/2015, 19:35

... heterostructures Both effects of electric and temperature bias on the transport properties are considered in this thesis We first study the electronic and transport properties of carbon chains sandwiched between ... ON TRANSPORT PROPERTIES OF GRAPHENE-BASED SYSTEMS MINGGANG ZENG (B.Sc., Xiamen University) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF PHYSICS NATIONAL UNIVERSITY OF ... electronic material Studies on the electronic and transport properties of graphene-based materials are necessary for understanding the experimental results and predicting possible applications In this...

Ngày tải lên: 09/09/2015, 18:48

... resistance of membrane-island, R c1 and R c2 are the thermal resistance of the two contacts between NW sample and the membrane-island, and R s is the thermal resistance of NW sample The left hand side ... dependence of various physical properties on size and dimensionality Among the physical properties of interest, relatively less research has been carried out on the thermal transport properties of NWs ... thermal transport properties of 3 types of NWs, namely, zinc oxide (ZnO), silicon (Si), and vanadium dioxide (VO2) NWs ZnO NWs are of great interest as a wide band gap semiconductor, and there...

Ngày tải lên: 09/09/2015, 18:57

... phase of polymeric particles, such as rubbers and thermoplastics But the addition of soft particles often results in a significant loss of modulus and stiffness And the addition of large mount of ... Trang 1Properties of Epoxy-Nanoclay Composites WANG LEI (B Sci, University of Science & Technology of China) A THESIS SUBMITTED FOR THE DEGREE OF PH D OF PHILOSOPHY DEPARTMENT OF MATERIALS ... layers and polymer matrix to be very complex and affect the composite properties The existence of organic modification lowers the reinforcing effect of clay, and makes it difficult to understand...

Ngày tải lên: 16/09/2015, 08:31

... MINISTRY OF EDUCATION AND TRAINING HANOI UNIVERSITY OF TECHNOLOGY AND SCIENCE Trang 2MINISTRY OF EDUCATION AND TRAINING HANOI UNIVERSITY OF TECHNOLOGY AND SCIENCE - PHAM HONG TRANG SYNTHESIS AND ... crystal structure of (a) anatase and (b) rutile 18 Figure 1.5 Unit cell of polymorphs of TiO2: (a) anatase and (b) rutile 19 Figure 1.6 The stage of alloying, nucleation and growth of nanowire synthesis ... Furthermore, there are safety concerns in hydrogen use, storage in a large amounts, handling and transport Manipulation and storage of hydrogen are associated with danger of leakage, which can lead to Trang...

Ngày tải lên: 16/07/2017, 08:43

... Determination of yield, solubility, degree of deacetylation, and reactive extent of Maillard reaction where OD (Optical Density) is a representation of a materialÕs light blocking ability The yield of water-soluble ... Evaluation of antibacterial activity CC ¼ f½ðOD value of control setÞ À ðOD value of sample À OD value without TMM addedފ= ðOD value of control setÞg  100%; Growth inhibition of the acid- and water-soluble ... triplicate, and average values with standard deviation errors are reported Mean separation and significance were analyzed using the SPSS software package Results and discussion 2.4 Determination of metal-ion...

Ngày tải lên: 30/08/2017, 16:30

... National Library of Vietnam - Library of Graduate University of Science and Technology - Library of Institute of Science Materials Trang 31 INTRODUCTION With the increasing population and economic ... eV and 962.25 eV corresponding to Cu2+ in CuO or Cu(OH)2 Figure 0.1 SEM image of the surface and cross-section of p-Cu2O Figure 0.4 XRD of the p-Cu2O and pn-Cu2O Figure 0.6 XPS spectrum of ... and I – t (b) characteristic curves of p-Cu2O and pn-Cu2O Figure 0.9 I – t curves of p-Cu2O and pn-Cu2O after two chopped - light cycles Figure 0.7 Absorption spectrum (a), band gaps (b) of...

Ngày tải lên: 09/01/2020, 15:07

... rutile and anatase forms of TiO2and this is the cause of difference in nature between them The nature and application of TiO2 is highly dependent on the crystalline structure of the forms and particle ... photocatalytic, hydrophilic properties of TiO2/SiO2 and TiO2/PEG thin films by Trang 2The thesis is completed at: Graduate University of Sciences and Technology, Vietnam Academy of Science and Technology ... the hypothesis of the origin of the mechanism of super-hydrophilic effect of the TiO2 material system Layout of the thesis: The thesis consists of the introduction, 5 chapters and the conclusion...

Ngày tải lên: 09/01/2020, 15:45

... record of 0.55% The physical properties of the soil show a bulk density of 1.32Mgm-1 , and the porosity was 54.2%, with a textural class of sandy clay loam of 72.4% sand, 25.2% clay, 2.4% silt, and ... https://doi.org/10.20546/ijcmas.2019.805.053Morphology and Physico-Chemical Properties of Lowland Area of Yamuna River Bank, Mahewa Village of Prayagraj S Dogo * , Narendra Swaroop, P Smitri Rao and T Thomas Department of Soil Science and ... examine the morphology, physical and chemical properties of the soil in a soil profile of lowland Yamuna river bank of Mahewa village, east of Pragrayaj India Materials and Methods The study was conducted...

Ngày tải lên: 13/01/2020, 05:40