determination of the liquid and plastic limits

... (Knight and Freitag, 1962) The ‘‘rating cone index’’ was measured as the average cone index of a critical layer, after an empirical correction for the softening of the soil under the action of the ... range of soils When the cone angle exceeds 90Њ Ϫ f, where f is the angle of internal friction of the soil, a cone of soil builds up on the probe tip (Koolen and Kuipers, 1983) This body of soil ... Hence the penetration of samples that have been dried, sieved, rewetted, and remolded will probably be very different from the penetration resistance of the soil in the field The purpose of the...

Ngày tải lên: 11/08/2014, 15:20

... of energy band in bulk Si and confinement effect: the confinement decreases the energy of HO states and increases the energy of the LU states, but the magnitude of the energy shift depends on their ... atoms, and ez is the zero-point energy of Si–H vibrations The value of lSi is equal to that in bulk Si and the zero of lH is taken to be the chemical potential at which the formation energy of SiH4 ... eliminated around the band gap More importantly, the gap energy (0.94 eV) is large compared to that in bulk Si (0.74 eV) and the direct band gap character is found The band structure of monohydride...

Ngày tải lên: 16/03/2014, 15:37

... of the structural and functional properties of the native proteins and thus may offer a useful basis for the design of agents for therapeutic intervention [7] Studies of different fragments and ... bilayers, and their dependence on calcium Therefore, the objectives of this study were to analyze (a) the effect of KL4 on the physical properties of membranes, in the absence and presence of Ca2+, ... 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 on the lipid order of surfactant-like...

Ngày tải lên: 30/03/2014, 11:20

... and Sa The effects of pull and heat are very similar and not as significant as the effect of velocity Delay and pressure are factors to change the taper length of the pipettes while keeping the ... control measures the velocity of the glass carriage system as the glass softens By increasing the velocity, both the tip size and the surface roughness decrease The velocity has the most significant ... http://www.nanoscalereslett.com/content/6/1/401 Page of 10 Dt Heat Figure The effect of heat on tip diameter and average surface roughness The heat is controlled by the level of electrical current supplied to the filament The unit of heat...

Ngày tải lên: 21/06/2014, 03:20

... with that of the [200] planes of single-crystalline face-centered Co, which is compatible with the data of XRD The SAED patterns (see the inset in Page of Figure 2b) are composed of the regular, ... http://www.nanoscalereslett.com/content/6/1/285 Page of published SY and YQ: partly carried out the TEM and HRTEM experiments, as well as drafted the manuscript XL, LS, and HL: conceived of the study, and participated in its design and coordination ... 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 magnetic field (about 0.5 T) and...

Ngày tải lên: 21/06/2014, 04:20

... ð7Þ where Pmax and h(w) are denoted as the driving force and the displacement response of the indenter, respectively; U is the phase angle between Pmax and h(w); m is the mass of the indenter column; ... The l is calculated by taking the ratio of the lateral force and the normal load on the indenter [31] The fluctuation in the friction coefficient values is promoted by point-on orientation of the ... are displayed in Fig and Table 1) despite the increase of the plastic deformation of ZnO thin films with the load, which resulted in grooving during scratch In the meanwhile, the relationship between...

Ngày tải lên: 22/06/2014, 01:20

... The surface morphology of the as-produced, functionalized MWCNTs and the fractured surface of the nanocomposites 123 Figure shows the FTIR spectra of acid and amino functionalized MWCNTs In the ... shows the onset of the degradation temperature of the raw, acid and amine modified MWCNTs In the case of as produced MWCNTs, the weight loss starts at 475 °C, whereas in case of modified tubes the ... MWCNT in case of former and with wt% in case of the latter Electrical Properties Fig SEM images of a raw, b acid modified-MWCNTs and c amide-MWCNTs As in the case of TS, the YM of the amide-MWCNTs/...

Ngày tải lên: 22/06/2014, 01:20

... 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 I1, I2 and I3: I1 ðTÞ ... demonstrated that the PL of CdSe core and CdSe/ZnS core/shell QDs in the first ns arises from the intrinsic bright ± 1U and ± 1L states with lifetime of about 60 ps and 450 ps, respectively, and from surface ... relative weights of each process, the longest component being more and more important by detecting wavelengths from the blue to the red side of the whole emission spectrum Moreover, the nonexponential...

Ngày tải lên: 22/06/2014, 18:20

... with the various facets and the resulting edges of the QD During the SK growth of InAs 123 QDs, the main driving force forming islands is the strain relaxation, which permits relief of part of the ... AFM and (d) histogram of the QD height of sample B; (e) AFM and (f) histogram of the QD height of sample C; (g) AFM of sample D; (h) AFM of sample E surface The bigger QDs had a density of 5.2 ... fraction of the photon-generated electron–hole pairs can recombine through the islands, and most of them have to recombine through the WL [24] Finally, for sample E, there are no QDs The PL band at...

Ngày tải lên: 22/06/2014, 19:20

... further led to the correlation of the Au-atop and Pt-atop CO bands on the surface of the alloy nanoparticles of a wide range of bimetallic composition with the electronic effect as a result of the ... Pt-atop CO bands vs the composition of Au in the alloy AuPt nanoparticles The length of the bars represents half of the peak width (determined from the full width at half of the peak maximum) The dotted ... reflects the limitation of the composition determination using data from the XRD analysis and the DCP-AES analysis The former is an indirect estimate of the composition The latter is a direct determination, ...

Ngày tải lên: 22/06/2014, 22:20

... for each sample of albic horizon; t is its thickness (cm) and Vand Care the numerical values of its Munsell value and chroma; and Due to the design of the study, the thickness of the forest floor ... in morphological and chemical properties of forest floor and mineral soil, and each accumulation of DW was examined for the origin (species) and age of decay The objectives of the present study ... terrain The cation exchange capacity and base saturation of the spodic horizon in the study area was in the range of 15 to 26 cmol kg and to -1 5%, respectively Each site supported the growth of a...

Ngày tải lên: 08/08/2014, 19:21

... WSe2 and WS2) are shown in Figures 1.2 b-e46 The conduction band minima locate between the Γ and K high symmetry points, and the valence band maxima at the Γ point The band structures depend on the ... aspects of 2D TMDCs require further understanding and optimization One of the crucial aspects to optimize the performance of 2D TMDCs FETs is the selection of electrode materials The performance of ... illumination and is the dominant channel current in the OFF xv state, with thermionic and tunnelling currents being negligible Thermionic and tunnelling currents contribute in the ON-state of the device...

Ngày tải lên: 09/09/2015, 11:16

... values for the density and volume of an object, and clicks the Calculate button, the GUI calculates the mass of the object and displays the result next to Mass(D*V) GUI with Axes and Menu The GUI ... you want the upper-left corner of the component to be and click - Place the cursor in the layout area where you want the upper-left corner of the component to be, then set the size of the control ... to the directory where you saved the GUI Add directory to the top of the MATLAB path — adds the directory where you saved the GUI to the top of the MATLAB path Add directory to the bottom of the...

Ngày tải lên: 29/09/2013, 20:20

... at the substrate The distribution of the electrochemical activity of the surface can thus be mapped The submicron resolution of SECM images is controlled by the size and shape of the tip, and ... function of the conductivity and chemical nature of the substrate, as well as of the tip–substrate distance The images thus obtained offer valuable insights into the microdistribution of the electrochemical ... using the letters E and C (for the redox and chemical steps, respectively) in the order of the steps in the reaction scheme The occurrence of such chemical reactions, which directly affect the...

Ngày tải lên: 25/10/2013, 08:20

... the second sweep feature Figure 9-62 The sketch of the sweep profile for creating the second sweep feature Apply the Coincident constraint between the center of ellipse and the end point of the ... Figure 9-54 Choose the Isometric View button from the View toolbar Press and hold the CTRL key down, select the center point of the ellipse and the upper end point of the guide Apply the Coincident ... create the handle of the jug Invoke the Sketcher by selecting YZ plane as the sketching plane Draw the profile of the guides, as shown in Figure 9-53 Exit the Sketcher workbench Click anywhere in the...

Ngày tải lên: 16/12/2013, 03:15

... Subsequent stations form the bottom two corners (3) of the shape No cold working of the sides of the shape is performed, and the shape’s seam is welded by high-frequency contacts when the tube is near ... Wall thickness, width and depth of rectangular and square HSS, and outside diameter of round HSS have converted to SI units and rounded to the nearest one-tenth of a millimeter The conversion factor ... material other than to refer to it and incorporate it by reference at the time of the initial publication of this edition “Designs for the 21st Century” iv TABLE OF CONTENTS PAGE Dimensions and Section...

Ngày tải lên: 22/12/2013, 16:15

... intercepts of the plane along the axes in units of lattice constants (3) Take the reciprocal of the intercepts and reduce them to the smallest integers The notation (hkl) denotes a family of parallel ... space There are 14 types of lattices in 3D These lattice classes are defined by the relationships between the primitive vectors a1 , a2 , and a3 , and the angles α, β, and γ between them The general ... obtained In the case of GaAs and InP the CZ technique has to face problems arising from the very high pressures of As and P at the melting temperature of the compounds Not only does the chamber...

Ngày tải lên: 24/01/2014, 17:34

... (3) where B2θ is the full width half maximum (rad), λ the wavelength of the X-ray, θ the angle between the incident and diffracted beams (degree) and d the particle size of the sample (nm) (in ... atomic weights of all the atoms in the unit cell, V is volume of the unit cell and N is the Avogadro’s number Since each primitive unit cell of the spinel structure contains molecules, the X-ray density, ... part of several tens percent of HC and the last one whereas can only reach several hundreds of gauss Thus, the increasing of Co-concentration led to the increasing of anisotropy property of ferrites...

Ngày tải lên: 13/02/2014, 04:20

... 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 IL-1b transcript, there is a putative ... mRNA and also of its own transcript For this reason, the level of mRNA for the wildtype form of MCPIP and the level of mRNA for IL-1b (Fig 5A, lane 3) were lower in comparison to the level of mRNA ... many stimulants, and regulates the level of IL-1b mRNA and of its own transcript Further studies are necessary to clarify the biological role of MCPIP as a nuclease and to identify the cis-acting...

Ngày tải lên: 18/02/2014, 14:20

... properties of trappin-2 involve the cationic nature of the molecule, as assessed from the salt and heparin dependence of the antimicrobial and antifungal effects Results Antimicrobial effects of recombinant ... We then examined the effect of heparin on the antimicrobial 2012 Fig Western blot analysis of elafin and trappin-2 fractionated on heparin-Sepharose The heparin-binding capacities of elafin and ... (+7) or elafin (+3) and also binds heparin, is blocked in the presence of 0.15 m NaCl [10] The differences in the distribution of positive charges on the surfaces of elafin and SLPI molecules [1]...

Ngày tải lên: 18/02/2014, 17:20