methods of measuring bulk density

... measured both cone resistance and bulk density below the ruts of a wheel supporting one of two loads at each of two ground pressures After depth corrections were made, bulk density results confirmed the ... the movement of soil in the axial direction (Gill, 1968; Tollner and Verma, 1984) Use of such a lubricated penetrometer is of questionable advantage, as the mechanics of penetration of a lubricated ... and Smith, 1971) An example of this depth correction in a tillage experiment is given in Fig The average bulk density of the plowed soil was 1.2 Mg m Ϫ3 and that of the direct drilled soil was...

Ngày tải lên: 11/08/2014, 15:20

... in terms of the projection 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 of nanowire in the supercell, lSi (lH) is the chemical potential of an Si (H) atom, nSi (nH) is the number of Si (H) atoms, and ez is the zero-point energy of Si–H vibrations The value of ... p-bonded chain of nanowire edges between adjacent {1 1} facets The calculated gap energy in bulk Si is 0.73 eV Fig Cross-sectional views of the wave functions at zone boundary of (a) two highest...

Ngày tải lên: 16/03/2014, 15:37

... to mimic some 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 ... 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+, using fluorescence anisotropy of 1,6-diphenyl-1,3,5-hexatriene ... specifically examine the 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...

Ngày tải lên: 30/03/2014, 11:20

... Delay Pressure Effect of heat 595, 600 605 10 500 Effect of velocity 606 4, 8, 10, 12, 14 500 Effect of pull 606 10 0, 10, 30 500 Effect of delay 606 10 1, 20, 40 500 Effect of pressure 606 10 300, ... test the reproducibility of the puller, ten pipettes were pulled with each set of parameters and their tip sizes were measured by SEM Figure is a summary of the statistics of the experiments A few ... 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

... of 8.86 Å (5 × 1.772 Å) is consistent 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 ... refluxed for Then, 50 mL of hydrazine monohydrate was added dropwise to the boiling solution After min, 10.0 mL of Co (NO ) 6H O solution (0.5 mol/L, in glycerine) and 10.0 mL of hydrazine hydrate ... the removal of the residual solvent through evaporation in vacuum at 500 K The yield of the as-prepared Co specimens is about 60% according to our calculation We noticed that no sign of oxidation...

Ngày tải lên: 21/06/2014, 04:20

... each system The average values of the coefficient of friction (l) of four scratched at the same maximum constant normal load was used to estimate the friction behavior of the samples After scratching, ... of Oliver and Pharr [18] is illustrated in Fig 2(c) The variation of results is similar to those illustrating in Fig 2(b); corresponding to the tendency of increase and decrease to constant of ... 248 nm) is employed and the beam was focused to produce an energy density of * 5–7 J/cm2 with 10 Hz repetition rate at a 45o angle of incidence on a commercial hot pressed stoichiometric ZnO (99.99%...

Ngày tải lên: 22/06/2014, 01:20

... only wt% of 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 ... Structure of PMDA/ ODA-based polyamic acid 123 446 Amine Modification of Acid Modified A 100 mL-flask was charged with g of MWCNTs-COOH dispersed in 30 mL of anhydrous benzene (C6H6) to which 30 mL of ... 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...

Ngày tải lên: 22/06/2014, 01:20

... solving a set of rate equations (B) Fourlevel model surface states, in the range of 15–60 K (see experimental data of Fig.2A) After 60 K all the intensities fall abruptly due to activation of nonradiative ... 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 ... times from intrinsic bright states of the fine structure of spherical CdSe QDs [4] into the surface defect states [5], and t3 is comparable with typical lifetime of surface-related emission in CdSe...

Ngày tải lên: 22/06/2014, 18:20

... histogram of the QD height of sample A; (c) 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 ... bigger QDs had a density of 5.2 109 cm-2, a lateral size of (80.0 ± 8.6) nm and an average height of (14.7 ± 1.0) nm The smaller QDs had a density of 4.0 108 cm-2, a lateral size of (57.2 ± 10.8) ... temperature of 60 K due to the relatively lower binding energy of the excitons in QW More interestingly, we observed the temperature dependence behavior of the WL of sample C is between the typical QW of...

Ngày tải lên: 22/06/2014, 19:20

... 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 d-band shift of Pt ... and dendrimer or cluster based methods [7, 8] We report herein the findings of an investigation of the nanoscale core and surface properties of Au-Pt nanoparticles of different bimetallic composition ... 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...

Ngày tải lên: 22/06/2014, 22:20

... 1) the presence on the log of a bryophyte community and regeneration of western hemlock; 2) a friable and soft consistency of its wood, which allowed the entire length of a finger to be pushed ... that of the Lignomoder The primary objective of this pilot study was to determine which of the many possible measurements of forest floor and mineral soil samples were most likely to be of value ... of mobilizing Fe and Al Consequently, the study of relationships between forest floor properties and the degree of development of albic and spodic horizons should give insight into the influof...

Ngày tải lên: 08/08/2014, 19:21

... are small in size (often in the order of several micrometers) with low output and lack of control of layer numbers In order to obtain large quantities of exfoliated flakes, many methods have been ... function and S 2p of MoS2 as a function of the MoO3 thickness (c) Energy level diagram for MoS2/MoO3 The XPS core level spectra of (d) S 2p and (e) Mo 3d during the deposition of MoO3 on bulk MoS2 ... electron cut-off) and (b) and (c) low binding energy region (near the Ef) during the deposition of Cs2CO3 on bulk MoS2 The XPS core level spectra of (d) S 2p and (e) Mo 3d during the deposition of Cs2CO3...

Ngày tải lên: 09/09/2015, 11:16

... Callback Callback off Off off off On on on Other user specifies user specifies Figure Properties That Control Access There are two figure properties that control command-line accessibility of the figure: ... option if your GUI contains axes HandleVisibility — Off Setting the HandleVisibility property to off removes the handle of the figure from the list of root object children so it will not become the ... containing the handles of all other radio buttons in the group that must be cleared function mutual_exclude(off) set(off,'Value',0) See “Radio Buttons” on page 4-9 for an example of such a function...

Ngày tải lên: 29/09/2013, 20:20

... extracellular environment of the brain The good temporal and chemical resolutions of such in vivo cyclic voltammetric experiments offer improved understanding of the chemistry of the brain These repetitive ... 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 ... special case of the EC mechanism is the catalytic regeneration of O during the chemical step: O + ne − ∫ R (2.8) R+A∫O (2.9) An example of such a catalytic EC process is the oxidation of dopamine...

Ngày tải lên: 25/10/2013, 08:20

... cylindrical surface Creating Offset Surfaces Menu: Toolbar: Insert > Surfaces > Offset Surfaces > Offset The Offset tool is used to create a surface that is at an offset distance from a reference ... Select the profile to be revolved By default, the axis you sketched, with the profile in the sketcher workbench, is selected as the axis of revolution You can also select some other axis of revolution ... 9-11 shows a profile and an axis of revolution to create the revolve surface The resulting surface, revolved through an angle of 180-degree, is shown in Figure 9-12 Figure 9-11 The profile and revolution...

Ngày tải lên: 16/12/2013, 03:15

... constant of cross-section (mm3) Outside diameter of round HSS (mm) Nominal depth minus times the design wall thickness, t (mm) Moment of inertia of cross-section (mm4) Moment of inertia of cross-section ... part of The Steel Tube Institute of North America or of any other person named herein, that this information is suitable for any general or particular use or of freedom from infringement of any ... manufacture of HSS These methods, including two ERW methods and an SAW method, are described below Both ERW methods meet ASTM A 500 and CSA G-40.21 requirements for the manufacture of HSS, and...

Ngày tải lên: 22/12/2013, 16:15

... the University of Chicago and is Professor of Electrical Engineering and Computer Science at the University of Michigan, Ann Arbor He has held visiting positions at the University of California, ... Structure of the electronic device Structure of the optoelectronic device Desired OEIC Substrate APPROACH Growth of the optoelectronic device structure Substrate Mask a portion of the layer Regrowth of ... third layer of close-packed spheres can now be placed so that center of the spheres not fall on the center of the starting spheres (left side of Fig 1.12a) or coincide with the centers of the starting...

Ngày tải lên: 24/01/2014, 17:34

... 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 ... hence it was the increasing of HC The increasing of HC proved that the soft magnetic property of ferrite NiFe2O4 changed to the hard magnetic property of ferrite CoFe2O4 Ni-Co ferrite samples ... 0.2 0.4 0.6 0.8 X Fig Lattice parameters of Ni1-xCox Fe2O4 Table Calculated lattice parameter ‘a’, X-ray density ‘DX’, Actual density and Relative density of Ni1-xCoxFe2O4 ferrites Sample NF NFC02...

Ngày tải lên: 13/02/2014, 04:20

... of early-response genes Bioinformatic analysis of MCPIP amino acid sequence Application of fold recognition methods allowed to identify potential structural templates for the 130-290 region of ... the dynamics and features of this protein Role of MCPIP in regulation of the endogenous IL-1b transcript level After identification of a PIN domain in the MCPIP by use of bioinformatics, we decided ... 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...

Ngày tải lên: 18/02/2014, 14:20

... action of trappin-2 is independent of its antiprotease function Although we have not determined its exact mechanism of action, we have shown that the antibacterial ⁄ fungicidal properties of trappin-2 ... lane for elafin) (B) Effect of class-specific protease inhibitors pepstatin (Peps., inhibitor of aspartyl proteases), AEBSF (inhibitor of serine proteases), E64 (inhibitor of cysteine proteases) and ... Antibacterial and antifungal activities of trappin-2 A D G B E H C F I Fig 10 SEM analysis of the effect of trappin-2 on bacterial cells Representative micrographs of S aureus (A–C), P aeruginosa (D–F)...

Ngày tải lên: 18/02/2014, 17:20