... the effects on penetration resistance are considered in Sec III B Effects of Soil Properties on Penetration Resistance Penetration resistance depends on soil type—the distribution of particle ... easier to measure penetration resistance than to predict it One of the major findings of this work was the large contribution of friction to penetration resistance Friction on a 5Њ semiangle probe accounts ... from the bulk mechanical properties of the soil Farrell and Greacen (1966) developed a model of soil penetration in which penetration resistance consisted of two components: the pressure required...
Ngày tải lên: 11/08/2014, 15:20
... those of adjacent NWs.1 Two atomic-layers are employed to simulate the periodicity along the [1 0] direction.2 Eight k-points are used in the integration over one-dimensional Brillouin zone We construct ... standard partition function, within the harmonic approximation, including both rotational and zero-point vibrational energies [23] Results and discussion Fig 1a shows the calculated formation energy ... on both {0 1} and {1 1} facets is stabilized As shown in Fig 2d, this completely H-terminated nanowire consists of monohydride configuration on {0 1} facets and (1 Â 1) H-terminated surfaces on...
Ngày tải lên: 16/03/2014, 15:37
Báo cáo khoa học: Physical properties and surface activity of surfactant-like membranes containing the cationic and hydrophobic peptide KL4 potx
... calcium-dependent attenuation of PAinduced alterations of bilayer properties probably involved the extraction of PA from the bilayer at concentrations of > 100 lm calcium Thus, the formation of PA–Ca2+ complexes ... interaction of KL4 with POPG and PA as well as the effect of these lipids on the physical properties of the membrane Effect of KL4 on the lipid order of surfactant-like membranes To evaluate KL4 effects ... amounts of KL4 to adsorb onto and spread at an air– water interface in the presence of physiological Ca2+ Fig Effect of different concentrations of KL4 on the interfacial adsorption kinetics of DPPC...
Ngày tải lên: 30/03/2014, 11:20
Báo cáo hóa học: " Surface properties of glass micropipettes and their effect on biological studies" pot
... of the nonhomogeneities in the composition and molecular structure of borosilicate glass [1] In the experiments, pipettes with 3D reconstruction of pipette tip To determine the three-dimensional ... Benayahu, D Aronov, G Rosenman, The effect of surface treatment on the surface texture and contact angle of electrochemically deposited hydroxyapatite coating and on its interaction with bone-forming ... (EBM, CC-3121, Lonza, Basel, Switzerland) on coverslips for to days before the experiments At the time of experiments, the confluence of the cells was over 80% Incubation was done at 37°C Patch-clamp...
Ngày tải lên: 21/06/2014, 03:20
Báo cáo hóa học: " Wet chemical synthesis and magnetic properties of single crystal Co nanochains with surface amorphous passivation Co layers" pdf
... powder diffraction (XRD), selective area electron diffraction (SAED), high resolution TEM (HRTEM), and X-ray photoelectron spectroscopy (XPS) The temperature dependence of magnetization and room ... de-ionized water by ultrasonic agitation A drop of the Co NCs solution was dripped on a copper grid with holes and carbon film to characterize the TEM in the absence or the presence of the weak external ... Science Foundation of China under Grant No 20971036 Open Access: This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial...
Ngày tải lên: 21/06/2014, 04:20
Báo cáo hóa học: "Surface Morphological and Nanomechanical Properties of PLD-Derived ZnO Thin Films" docx
... transformation [24] and, generation of slip bands because of dislocation propagation [9] during the nanoindentation process were identified to have occurred in the different systems In contrast, ... various growth environments of thin films, the indentation instruments and operational conditions Fig 2(b) displays the hardness of ZnO thin films calculated by using the method of Oliver and Pharr ... elastic to elastic/ plastic contact whereby the hardness is really the mean contact pressure Only under a condition of a fully developed plastic zone does the mean contact pressure represent the...
Ngày tải lên: 22/06/2014, 01:20
Báo cáo hóa học: " Influence of Surface Modified MWCNTs on the Mechanical, Electrical and Thermal Properties of Polyimide Nanocomposites" ppt
... readings of voltage drops at different portions of the sample Result and Discussion FTIR Studies Characterization Fourier Transform Infrared Spectroscopy Functionalization of MWCNTs and conversion of ... amount of acid or amine functionalized MWCNTs were separately mixed in 10 mL of DMAc by means of ultrasonication at room temperature to obtain a homogenous suspension of MWCNTs/DMAc This suspension ... grafted functional group consists of a secondary amide attached to the MWCNTs along with a long alkyl chain The long alkyl chain helped in preventing agglomeration and bundling of MWCNTs due...
Ngày tải lên: 22/06/2014, 01:20
Báo cáo hóa học: " The Role of Intrinsic and Surface States on the Emission Properties of Colloidal CdSe and CdSe/ZnS Quantum Dots Giovanni Morello Æ Marco Anni Æ Pantaleo Davide Cozzoli " potx
... model (Fig 2B) By considering only thermal population effects in the range of 15–60 K, we have imposed and solved a set of rate equations The solutions gave us the expressions for the intensities ... resolution of 17 ps) All the measurements were performed at low excitation density, in order to overcome multiexciton generation Results and Discussion In Fig 1A the temporal evolution of CdSe/ZnS ... emission wavelengths (corresponding to the three transitions) the general nonexponential behavior, along with the lifetimes, does not change apart from the relative weights of each process, the longest...
Ngày tải lên: 22/06/2014, 18:20
Báo cáo hóa học: " Influence of GaAs Substrate Orientation on InAs Quantum Dots: Surface Morphology, Critical Thickness, and Optical Properties" docx
... followed by a reduction of the substrate temperature to 530 °C for the growth of 1.6 monolayer (ML) of InAs By in situ reflection high-energy electron diffraction, the growth rate of InAs was deduced ... normal WL of InAs QDs These observations show that the formation and the optical properties of the quantum structures strongly depend on the substrate orientation The InAs QDs formation was delayed ... the very low QD density on (911)B surface Consequently, only a small fraction of the photon-generated electron–hole pairs can recombine through the islands, and most of them have to recombine...
Ngày tải lên: 22/06/2014, 19:20
Báo cáo hóa học: "Nanocrystal and surface alloy properties of bimetallic Gold-Platinum nanoparticles" pdf
... information on the Pt surface binding properties, let us consider the maximum concentration of Pt atoms on a surface in which each Pt atom is completely surrounded by Au atoms The Pt concentration ... surrounding Pt atoms produce an electronic effect on the binding properties of CO on Pt The understanding of the electronic effect is based on the correlation between the spectral features and ... comparison among infrared spectra for CO adsorption on AuPt nanoparticles over a wide range of bimetallic composition provides important information for assessing the surface binding properties of...
Ngày tải lên: 22/06/2014, 22:20
Báo cáo khoa học: "Influence of decaying wood on chemical properties of forest floors and surface mineral soils: a pilot study" pptx
... boundary with mineral soil Samples of spodic horizons consisted of a uniform column of soil cut by a trowel from the top of the horizon to a depth of 10 cm A total of 10 samples per pedon and 20 samples ... influence of DW on soils The experimental approach adopted was a comparative analysis of paired pedons with each pair consisting of pedon with accumulation of DW and another without DW The pedons were ... eluviation and illuviation 4) The spatial pattern of DW on a site corresponds to that of understory vegetation and humus form and accounts for much of the variation in the chemical properties of the...
Ngày tải lên: 08/08/2014, 19:21
Investigation of electronic and optical properties of molybdenum disulfide modulated by surface functionalization
... dispersion and ultrasonication of TMDCs, faces challenge in achieving high-yield production of monolayer TMDC flakes In contrast, the intercalation of ionic species among the layers of TMDC crystal ... mode of Au on MoS2 and its effect on transport properties of MoS2 FET 95 6.4 Probing the MoS2/Au interface interaction and the effect of Au deposition on the optical properties of MoS2 ... been a constant source of inspiration during my study His tender love, companionship are appreciated throughout all the seasons of life iv List of Publications “Plasmonic enhancement of photocurrent...
Ngày tải lên: 09/09/2015, 11:16
Laying Out GUIs and Setting Properties
... Figure Properties That Control Access): Option Handle Visibility Integer Handle Callback Callback off Off off off On on on Other user specifies user specifies Figure Properties That Control Access ... [0,0]) of the • Figure, if no components are selected • Parent of a selected component, if the component is not a panel or button group • Panel or button group, if only one panel or button group ... button Axes Axes Properties 3-41 Laying Out GUIs and Setting Properties Component Property Reference Page Panel Uipanel Properties Button group Uibuttongroup Properties Menu Uimenu Properties Context...
Ngày tải lên: 29/09/2013, 20:20
35768 Study of Electrode Reactions and Interfacial Properties
... structural–preparation relationships of conducting polymers can also be achieved by monitoring the growth of such films under different conditions (54) In addition to topographic information, the high ... diffusion of ions from the bulk solution to the electrode surface The impedance of the interface, derived by application of Ohm’s law, consists of two parts, a real number Z′ and an imaginary one, ... evaluation of the temporal absorbance response (A–t curve) during the electrochemical generation (or consumption) of an optically active species can yield extremely useful insight on reaction mechanisms...
Ngày tải lên: 25/10/2013, 08:20
Tài liệu Working with Wireframe and Surface Design Workbench doc
... create a point by choosing any one of the options from the contextual menu, which is available when you right click on the Center selection area of the Circle Definition dialog box Next, you are ... dimensions of the model are shown in Figure 9-45 (Expected time: 45min) Figure 9-44 The isometric view of the model Figure 9-45 The views and dimensions of the model Evaluation chapter Logon to ... the OK button to complete the split operation The model will look similar to the one shown in Figure 9-55 On rotating the view of the model, you will note that the unwanted portion of the swept...
Ngày tải lên: 16/12/2013, 03:15
Tài liệu Metric Dimensions and Sections Properties pptx
... TABLE OF CONTENTS PAGE Dimensions and Section Properties of Rectangular HSS Dimensions and Section Properties of Square HSS .14 Dimensions and Section Properties of Round ... inertia of cross-section about the X-X axis (mm4) Moment of inertia of cross-section about the Y-Y axis (mm4) Torsional stiffness constant of cross-section (mm4) Governing radius of gyration (mm) ... information only.While it is believed to be accurate, this information should not be used or relied upon for any specific application without competent professional examination and verification of...
Ngày tải lên: 22/12/2013, 16:15
Electronic and Optoelectronic Properties of Semiconductor Structures
... VIBRATIONS: PHONON SCATTERING 217 6.1 LATTICE VIBRATIONS 217 6.2 PHONON STATISTICS 6.2.1 Conservation Laws in Scattering of Particles Involving Phonons 223 6.3 POLAR OPTICAL PHONONS 225 6.4 PHONONS ... INCLUSION OF EXCITONIC EFFECTS 408 10.4 EXCITONIC STATES IN QUANTUM WELLS 413 10.5 EXCITONIC ABSORPTION IN QUANTUM WELLS 414 10.6 EXCITON BROADENING EFFECTS 416 10.7 MODULATION OF OPTICAL PROPERTIES ... of topics for a one semester course on semiconductor physics (con’t.) Chapter STRUCTURAL PROPERTIES OF SEMICONDUCTORS 1.1 INTRODUCTION Semiconductors form the basis of most modern information...
Ngày tải lên: 24/01/2014, 17:34
Tài liệu Báo cáo " The effect of cobalt substitution on structure and magnetic properties of nickel ferrite " pptx
... yields monotonic increase in the saturation magnetization of Niferrite which may be due to the substitution of Ni2+ ions by Co2+ on the octahedral sties Therefore, the increasing Co2+ concentration ... expression corresponds to the contribution of magnetocrystalline anisotropy of material, the second one is given by shape anisotropy of crystalline particles (domains) and the third one is orginated ... successfully by co-precipitation method X-ray diffraction study shows the presence of cubic spinel The increase of Co2+ ion concentration yields the monotonic increase of MS, HC Magnetic measurements...
Ngày tải lên: 13/02/2014, 04:20
Tài liệu Báo cáo khoa học: Interleukin-1-inducible MCPIP protein has structural and functional properties of RNase and participates in degradation of IL-1b mRNA doc
... region) The construct encoding IL-1b cDNA with AREs (IL1+ARE) contained 423 bp of the 3¢ UTR (nucleotides 898–1318 of the 3¢ UTR region) The stop codon (positions 895-897) and AU-rich region (positions ... degradation of IL-1b transcript independently of the presence of AREs (Fig 6B, lanes and 5) It is possible that in the region located before the AREs, consisting of 343 bp of the 3¢ UTR of the ... Overexpression of MCPIP in cells activated with LPS results in downregulation of the IL-1b transcript and silencing of MCPIP gene expression has an opposite effect on the IL-1b mRNA level RNase properties...
Ngày tải lên: 18/02/2014, 14:20
Tài liệu Báo cáo khoa học: The antibacterial and antifungal properties of trappin-2 (pre-elafin) do not depend on its protease inhibitory function pptx
... is responsible for the observed insensitivity of K pneumoniae and H influenzae to high trappin-2 concentrations Trappin-2 (30 lm) killed approximately 50% of S aureus and 40% of S pneumoniae To ... inhibition of the proteases secreted by A fumigatus conidia during germination in lung tissues may severely limit the colonization of the lung matrix by A fumigatus Trappin-2, which has antifungal properties ... conidia out on Sabouraud Gentamicin Chloramphenicol-2-agar plates (n = 5) The number of dead fungal cells after h of incubation in buffer alone (control) was £ 2% The effect of NaCl on antibacterial...
Ngày tải lên: 18/02/2014, 17:20
Bạn có muốn tìm thêm với từ khóa: