calculation of the specific surface area from isotherms of type ii without and with the monolayer domain
báo cáo khoa học: "Determination of the volume-specific surface area by using transmission electron tomography for characterization and definition of nanomaterials" docx
Ngày tải lên :
11/08/2014, 00:23
... measurement of their VSSA from its electron tomographic reconstruction To evaluate the influence of missing wedge artifacts on the reconstruction and on the precision of the estimation of the surface area ... × × averaging of voxels (downsampling) Using the ‘Create Surface function of Amira, a surface was derived from the isosurface, which allowed measurement of the surface area of the reconstructed ... on their electron density and size The surface area and volume of individual spherical particles were approximated by the formulas to calculate the surface area (4πr ) and the volume (4/3πr ) of...
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Báo cáo Y học: The refolding of type II shikimate kinase from Erwinia chrysanthemi after denaturation in urea pot
Ngày tải lên :
08/03/2014, 23:20
... additional means of investigating the integrity of this region of the protein In the present paper, we have undertaken a study of the unfolding and refolding of the type II SK from E chrysanthemi, using ... complete within the dead time (20 s) of the start of recording the ellipticity A further 15% of the signal was regained over the subsequent 500 s with a rate constant of 0.009 s)1 At the end of this ... M urea In the table, U and N represent the unfolded and refolded states of the enzyme and I1, I2 and I3 the intermediates inferred from the kinetic analysis of changes in activity and spectroscopic...
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High specific surface area porous sic ceramics coated with reticulated amorphous sic nanowires
Ngày tải lên :
16/03/2014, 15:17
... Given the simplicity of the procedures and the unique properties of the as-synthesized materials, the method described here should attract a great deal of attention Other high specific surface area ... morphologies of the external surface and fracture surface of the resulted porous SiC ceramics coated with reticulated SiC nanowires, respectively Fig 2(a) clearly reveals that the external surface of the ... found from Fig 1(a) that no obvious diffraction peaks of SiC crystals existed in the XRD pattern of the external surface of the as-synthesized materials This indicates that the external surface of...
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Tài liệu Báo cáo khoa học:Tyrosine phosphorylation of tau regulates its interactions with Fyn SH2 domains, but not SH3 domains, altering the cellular localization of tau ppt
Ngày tải lên :
14/02/2014, 14:20
... whether the tyrosine phosphorylation status of tau also affects the binding of tau to Fyn-SH3, CHO cells were cotransfected with Fyn together with either wild -type or the YF mutant forms of tau ... mobility of tau, with the appearance of an 68-kDa tau species in wild -type and all of the mutant forms of tau except for YallF and Y394F tau (Fig 3) In contrast to the results obtained with Fyn-SH2, ... disruption of the association of these proteins could represent a potential therapeutic strategy for the treatment of AD Here, we used GST fusion proteins of Fyn-SH2 and FynSH3 to further investigate the...
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Báo cáo khoa học: The product chain length determination mechanism of type II geranylgeranyl diphosphate synthase requires subunit interaction pptx
Ngày tải lên :
07/03/2014, 06:20
... touches the x-end of GGPP bound in the same subunit, whereas phenylalanine 108 supplied from the other subunit exists in the proximity of the x-end [24] These results led to the hypothesis that the ... remained the final product Although Ohnuma et al [18] did not confirm the effect of the insertion by performing the converse mutation (i.e deletion of the insertion from type I FPS or type II GGPS), the ... role in the mechanism of chain length determination in type II GGPS Thus, in the present study, the two amino acids insertion was deleted from FARM of type II GGPS from P ananatis to confirm the effect...
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steinmetz cp theory and calculation of transient electric phenomena and oscillations
Ngày tải lên :
04/06/2014, 12:34
... however, of the intensity of the magnetic field, Iii field , and the intensity of the electrostatic field, M^, is proportional to the flow of energy or the power, P, and the power is there- ... decreases from generating to receiving circuit, and the power gradient therefore is characteristic of the direction of the flow of energy.) In the space outside of the conductor, during the flow of ... components The electromagnetic field, the electrostatic field and the power consumption, and their relation to current and The electromagnetic energy, the electrostatic energy, and the power loss of the...
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The Discovery of Type II Superconductors Part 1 pdf
Ngày tải lên :
21/06/2014, 05:20
... Oxidation states As Bi Cu Fe Nb Pb Ti Tl W [Ar]3d104s24p3 +III, +V +III, +V +I, +II, +III +II, +III, +IV, +V +III, +V +II, +IV +II, +III, +IV +I, +III +IV, +V, +VI [Xe]4f145d106s26p3 [Ar]3d104s1 [Ar]3d64s2 ... ions and (2/3) for Cu(+III) ions For the other elements in Table 3, we have considered the following stable oxidation states: La(+III), Y(+III), Ba( +II) , Sr( +II) , Bi(+III), Ca( +II) , Tl(+III), ... (1/3) for Cu(+I) ions and (2/3) for Cu(+III) ions, we may write the formula unit: YBa2Cu1(+I)Cu2(+III)Ox Considering the oxidation states Y(+III), Ba( +II) and O( -II) and using the charge neutrality...
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The Discovery of Type II Superconductors Part 2 pot
Ngày tải lên :
21/06/2014, 05:20
... in the case of the magnetic field that ran parallel to the surface in the interval Hc2 < H
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The Discovery of Type II Superconductors Part 4 potx
Ngày tải lên :
21/06/2014, 05:20
... shows the spectra of the reflection from the δ - barriers with different concentration of boron The decrease in R(λ) compared with the data of the silicon single crystal and the drops in the position ... region of the spectrum (200-300 nm) It follows from the comparison of R(λ) with the STM data that the position of the minima in the reflection coefficient in the spectral dependence R(λ) and the ... profile which contains the p -type SiQW confined by the δ-barriers heavily doped with boron on the n -type Si (100) surface The value of the critical temperature, Tc=145 K, the estimations of the...
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The Discovery of Type II Superconductors Part 6 doc
Ngày tải lên :
21/06/2014, 05:20
... scattering properties are the direct reflection of the phonon behavior of MgB2 The parameters of Raman spectra vary with the composition of MgB2 crystals and the influence of their surroundings, which ... filling, which reduces the density of states (DOS) and alters the shape of the Fermi surface The E2g phonon peak shifts to the higher energy side, and the peak is narrowed with increasing x in ... MgB2 The FWHM of ω2 decreases with SiC doping, while the Mg excess weakens this trend On the contrary, the ω3 FWHM increases with SiC addition and becomes narrow with more addition of Mg The Raman...
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The Discovery of Type II Superconductors Part 7 pptx
Ngày tải lên :
21/06/2014, 05:20
... Energies of particles were selected considering the optimisation of nuclear reaction of the projectile with the sample and the range of particles in the sample In case of HTSC Bi-cuprates, the purpose ... contribution of the Cu-O2 planes was considered, taking together the effects on the oxygen and the copper atoms in those sites The results show that the contribution to the total damage from yttrium and ... and the main effect they observe was that the D1 doublet relative area decreases and the D4 doublet relative area increases in correspondence The variation on these magnitudes was around 5% and...
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The Discovery of Type II Superconductors Part 8 pot
Ngày tải lên :
21/06/2014, 05:20
... waves with random intensities and phases, coming from different points of the object surface The specific pattern is related to the microstructure Changes in the shape or structure of the surface ... slowly in case of B implying lower slope of Jc-B curve for sample B The lower values of the exponents k and m of the irradiated sample show that there is reduction of the distance of the pinning ... right side In the case of 1.5 A only two fringes are observed, they appear at t=20s and they remain constant during the rest of the pulse In the case of a current of 2.5 A, the number of fringes...
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The Discovery of Type II Superconductors Part 9 potx
Ngày tải lên :
21/06/2014, 05:20
... in the surface of the machined regions there is a layer of melted material with a thickness of approximately μm Application of Optical Techniques in the Characterization of Thermal Stability and ... refinement of Gd-211 particles from the commercial size of about μm to several tens of nm was done by ball-milling with Y2O3 – ZrO2 balls With the help of these ball-milled nanoparticles a new type of ... On the other hand, the small round particles of 20-50 nm size contained a significant amount of Ti, similar to the samples with a Zr addition The critical current densities of the samples with...
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The Discovery of Type II Superconductors Part 10 ppt
Ngày tải lên :
21/06/2014, 05:20
... K and 45 K, with σ and π being the bands of the boron electrons [2] In fact, there are two hole -type quasi-two-dimensional σ bands (σ1 and σ2), an electron -type (π 1) and a hole -type (π 2) three-dimensional ... like or of the irregular shape One can appreciate from the Fig that the amount of the brighter regions is likely to enhance from A to D and, hence, the amount of the high density regions in the material ... observe grains of MgB2 and MgO and to make a separation between them Since the role and behaviour of the oxygen in MgB2 is not clear and also considering the above limitations from the different...
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The Discovery of Type II Superconductors Part 11 pot
Ngày tải lên :
21/06/2014, 05:20
... consideration the limitations of the theory of the technique and the experimental sampling errors, the thermal conductivity and thermal diffusivity data contain errors of 4% and 7% respectively The errors ... photographs of green sheets and sintered samples prepared from the slurry with (1) and (2) wt% PVA Fig The effect of PVA on the shaping of sample Photographs of the samples prepared from the slurry ... resistivity The Figure of merit is the deciding factor for the quality of thermoelectric materials In order to increase the whole Figure of merit, it is of interest to replace the p -type leg of the Peltier...
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The Discovery of Type II Superconductors Part 12 docx
Ngày tải lên :
21/06/2014, 05:20
... superconductors and the length of the c-axis of the unit cell of the system are highly effective on both of the first and second chaotic points of the superconducting system The mercury based ... prepared from the slurry with wt% PVA is larger than that of the sample without PVA for the magnetic field range between -1.0 and +1.0 T It can be seen that with the addition of PVA, the critical ... prepared from the slurry containing wt% PVA was about two times larger than that of the sample without PVA This fact can be explained by the difference of the density The average density of the sample...
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The Discovery of Type II Superconductors Part 14 ppt
Ngày tải lên :
21/06/2014, 05:20
... knowledge of the structure and electronic density distribution On the other hand, the comparison of νQ and VZZ, deduced from theoretical calculations on the basis of different structural models and ... little shift of the layer B with respect to the layers A1 and A2 perpendicular to the c-axis with the change of the Cu(2)-S(1)-Cu(2) bonding angle from 180º at room-T to 170º below TPT The crystal ... positions of quadrupole nucleus (I > ½) in the crystal structure, (ii) by the local geometry (i.e symmetry) of quadrupole nucleus surrounding, (iii) by the magnitude of nuclear spin I and (iv) by the...
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RECENT ADVANCES IN THE PATHOGENESIS, PREVENTION AND MANAGEMENT OF TYPE 2 DIABETES AND ITS pptx
Ngày tải lên :
28/06/2014, 05:20
... next to the hand in the somatotopic map and by anaesthetizing the forearm, the cortical hand area can rapidly expand over the forearm area resulted in improved sensory function of the hand in ... in the myelin, nodes of Ranvier, and axons Routine NCS include evaluation of the motor function of the median, ulnar, peroneal, and tibial nerves, and evaluation of the sensory function of the ... 0.01 cm2 in the SA The CSAs was a significant increase in the diabetic patients compared with that in the controls, with the exception of the sural nerve The percentage of the hypoechoic area was...
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Báo cáo y học: "Antibodies against the CB10 fragment of type II collagen in rheumatoid arthritis" pdf
Ngày tải lên :
09/08/2014, 01:23
... bovine CII were present in 23 (24%) of 94 patients with RA, (27%) of 33 with patients with PsA, (10%) of 31 patients with OA, and (1%) of 93 control sera The levels of reactivity to bovine CII compared ... CB11 with the use of individual sera from rats immunized with CII [28] More recently, the use of recombinant chimeric preparations of CII has allowed the detecR481 Arthritis Research & Therapy ... increased, from 24% to 88%, comparing the frequency using the intact CII molecule; this was not at the expense of the specificity, which remained at the high level of 94% Materials and methods...
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Báo cáo y học: "Alterations of alveolar type II cells and intraalveolar surfactant after bronchoalveolar lavage and perfluorocarbon ventilation. An electron microscopical and stereological study in the rat lung" pdf
Ngày tải lên :
12/08/2014, 15:20
... Abbreviations: N(typeII/lung) = number of type II cells per lung; ν N (typeII) = number-weighted mean volume of type II cells; V(lb/typeII) = total volume of lamellar bodies per type II cell; V(lb/lung) ... by the point-sampled intercepts method The number of alveolar type II cells per lung (N(typeII/lung)) was estimated by the physical disector method and the number-weighted mean volume of type II ... to the conception and design of the study, performed the animal experiments and revised the manuscript carefully RRW contributed to the conception of the study and the data interpretation, and...
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Tìm thêm:
- hệ việt nam nhật bản và sức hấp dẫn của tiếng nhật tại việt nam
- xác định các mục tiêu của chương trình
- xác định các nguyên tắc biên soạn
- khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn
- khảo sát chương trình đào tạo của các đơn vị đào tạo tại nhật bản
- khảo sát chương trình đào tạo gắn với các giáo trình cụ thể
- xác định thời lượng học về mặt lí thuyết và thực tế
- tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam
- điều tra đối với đối tượng giảng viên và đối tượng quản lí
- điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1
- khảo sát thực tế giảng dạy tiếng nhật không chuyên ngữ tại việt nam
- khảo sát các chương trình đào tạo theo những bộ giáo trình tiêu biểu
- nội dung cụ thể cho từng kĩ năng ở từng cấp độ
- xác định mức độ đáp ứng về văn hoá và chuyên môn trong ct
- phát huy những thành tựu công nghệ mới nhất được áp dụng vào công tác dạy và học ngoại ngữ
- mở máy động cơ lồng sóc
- mở máy động cơ rôto dây quấn
- các đặc tính của động cơ điện không đồng bộ
- hệ số công suất cosp fi p2
- đặc tuyến hiệu suất h fi p2