important properties of silicon silicon dioxide and silicon nitride at 300k
Báo cáo khoa học: Studies on the regulatory properties of the pterin cofactor and dopamine bound at the active site of human phenylalanine hydroxylase pptx
... it is seen that on preincubation with saturating concentrations (Fig 3B) of the biopterin cofactors or dopamine the rate of phosphorylation was decreased, and at 200 lM of the ligands the inhibition ... to generate the active intermediate for the coupled hydroxylation of the cosubstrates [21,41] However, the sequence of binding of cofactor and substrate is still a matter of discussion and may ... conformational states include a ground state for the ligand-free enzyme, an activated state with bound substrate (L-Phe), an inhibited state with bound H4biopterin and nally the state of catalytic...
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Báo cáo hóa học: " Effect of the Nd content on the structural and photoluminescence properties of silicon-rich silicon dioxide thin film" pdf
... was demonstrated that the PL of Nd 3+ ions was quenched at high Nd-concentration (4.9 at. %) because of the formation of Nd2O3 nanocrystals and the occurrence of disorder in the host matrix The ... improvement of their passivation [26] and the decrease of disorder in the host matrix The latter is a source of non-radiative recombination channels Interestingly, one can observe that the evolution of ... of Si-np drastically drops and disappears at 1.68 at. % Then, PL of Si-np surprisingly reappears at the highest Nd concentration of 4.9 at. % Interestingly, one can observe that the positions and...
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Effects of simultaneous doping with boron and phosphorous on the structural, electronic and optical properties of silicon nanostructures
... effects of size and shape of Si-nc on the incorporation of group-III (B and Al), group-IV (C and Ge) and group-V (N and P) impurities Single-doping has been investigated both in spherical and faceted-like ... Now, what is important is that the electronic properties of B- and P-codoped Si-nc are qualitatively and quantitatively different from those of either B- or P- single-doped Si-nc The presence of ... calculations are performed within the generalized gradient approximation using Vanderbilt ultrasoft pseudopotentials [27] for both the determination of the structural and electronic properties and...
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First principles optical properties of silicon and germanium nanowires
... operator (which is non hermitian, non local and energy dependent) appears The calculated quasi-particle energies (i.e the excitation energies) are the output of this part of the calculation and ... Optical gaps in SiNWs and GeNWs: quantum confinement and anisotropy effects In this section, we will describe the electronic properties of hydrogen passivated, free standing silicon and germanium nanowires ... in terms of the different geometrical structure of wires grown with different orientation Finally the comparison of the optical spectra of SiNWs and GeNWs with diameters of the order of 0.8 nm,...
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Báo cáo hóa học: " Properties of silicon dioxide layers with embedded metal nanocrystals produced by oxidation of Si:Me mixture" doc
... supersaturated solution It is well known that under the thermal treatment the decomposition of supersaturated solution takes place eventually resulting in the phase separation and the formation of ... complete rejection of Me atoms from the oxide during thermal oxidation of a-Si:Me layer The detailed analysis of RBS data (Figure 2) reveals that Au and Pt segregation depends on the oxidation conditions ... metal and metal silicide NCs by the combination of Si:Me mixture by PLD at room temperature and its thermal oxidation By means of this fabrication technique, it is possible to produce a sheet of...
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Theoretical investigation on thermal properties of silicon based nanostructures
... 2.1 Schematic picture for NEMD simulation of SiNWs 32 2.2 Temperature profile of SiNWs in NEMD simulation 33 2.3 Impacts of the number of heat bath layers on thermal properties of SiNWs ... thermal properties of silicon based nanostructures Using silicon nanowires (SiNWs) and silicon- germanium nanojunctions as examples, we study the effect of heat bath on calculated thermal properties ... autocorrelation function based on different definitions of heat current 56 xiv 2.9 Time dependence of normalized heat current autocorrelation function Cor(t)/Cor(0), relative fluctuation of Cor(t), and...
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Báo cáo khoa học: Cytokine properties of prokineticins Justin Monnier and Michel Samson pptx
... Samson, unpublished data) Altogether, these data suggest that the differentiation status of monocytic cells may have an impact on the regulation of expression of prokineticin and prokineticin receptors ... expressed in all cells in the undifferentiated state and showed a large decrease in cells in the differentiated state (data not shown) For the regulation of PROKR1 and PROKR2 in myeloid cells there is ... increased the levels of integrin b2, elevated the number of adherent cells, and stimulated TNF-a mRNA expression, implying that prokineticins participate in the activation of bovine monocytes...
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Báo cáo khoa học: "FACTORING RECURSION AND DEPENDENCIES: AN ASPECT OF TREE ADJOINING GRAMMARS (TAG) AND A COMPARISON OF SOME FORMAL PROPERTIES OF TAGS, GPSGS, PLGS, AND LPGS " pot
... modifications of TAG's or rather the operation of adjoinlnR, which Is linguistically motivated, it is possible to generate L2 and L3, but only in some special ways (This modification consists of ... n ~ 0}, w is a string of a's and b's such that (1) the number of a's = the number of b's and (2) for any initial substrlng o f w, t h e n u m b e r of a's ~ t h e number of b ' s } -r S A ~z" ... powerful to generate L2 The so-called copy inguage L3 ~ {w e w /w 6{a,b} P } also cannot be generated by a TAG The fact that TAG's cannot generate L2 and L3 is important, because it shows that TAG's...
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Báo cáo khoa học: Kininogen-derived peptides for investigating the putative vasoactive properties of human cathepsins K and L docx
... HMWK by cathepsins HMWK (0.55 lM) was incubated with different concentrations of cathepsins B, L and K at kininogen/enzyme ratios of : 1, : and : (two cystatin-like inhibitory sites per kininogen) ... except that the HMWK was incubated with hK1 at enzyme/kininogen ratios of : 10 and : 100 in 50 mM Tris/HCl buffer, pH 8.3, EDTA mM for 60 at 37 °C Kinetics measurement Determination of kcat/Km The ... production of kinin and the subsequent release of a truncated fragment These data suggest that human cathepsin K proteolytically processes native kininogens, but, unlike cathepsin L, does not generate...
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Tensile properties of cooked meat sausages and their correlation with texture profile analysis (TPA) parameters and physico chemical characteristics
... May and October) maintaining brands and meat sausage type At every time of purchase, eight samples were of chopped (CH), nine of mortadella (MT), and seven of galantines (GL) Chopped is a heat-cured ... be attributed to variations in the product formulation (Table 1) and probably are not due to the type of cooked meat sausage Results show that dry matter ranged from 28.1% to 49.1% wet matter and ... fat content as: low fat (35%) According to this criterion, only 8.3% of the samples belonged to the low fat group, 33.3% to the medium fat category, and...
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báo cáo hóa học: " The minimal important difference of the hospital anxiety and depression scale in patients with chronic obstructive pulmonary disease" pot
... sample sizes of trials and to make treatment decisions without the understanding that the point estimate of 1.5 is the best estimate of the minimal important difference and that the limits of the CIs ... understanding that the point estimate is the best estimate of the minimal important difference and that the limits of the 95% confidence intervals are sample size dependent Since this sample is relatively ... Meta-analyses of randomised trials on respiratory rehabilitation show treatment effects between 0.5 and 1.0 on the CRQ thus exceeding the minimal important difference of 0.5 points and providing a patient-important...
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Báo cáo hóa học: " Structural and physical properties of antibacterial Ag-doped nano-hydroxyapatite synthesized at 100°C" pptx
... co-precipitation method at 100°C mixing AgNO3, Ca (NO ) · 4H O, and (NH ) HPO in deionized water The structure, morphology, vibrational, and optical properties of the obtained samples were systematically ... The large bands which were attributed to adsorbed water diminished for the HAp_Ag20 sample The changes are attributed to the substitution of Ag + from Ca 2+ into the lattice of apatite Bands’ characteristics ... noted that the HPO42- band was present in all the spectra but for high values of Ag/(Ca+Ag) atomic ratio the band diminished The small CO2- band was presented in the spectra with atomic ratio Ag/(Ca...
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Báo cáo khoa học: "Comparison of flexural and shear properties of southern pine LVL and lumber from young plantation and natural stands*" ppsx
... lumber properties of the same trees Additional objectives of the study were to determine the properties of LVL from a 28- and a 40-year-old natural stand and compare them with the properties of the ... Fabrication of LVL from 20-year-old plantation trees does not provide improvement over the properties and design values of N° and sawn solid lumber of this material iv) Inclusion of veneer from mature ... Testing and Materials (ASTM) (1991) Standard methods of static tests of timbers in standard sizes, D 198-84 Standard method of testing small clear specimens of timber D 143-83 In: American Book of...
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Structure, magnetic and transport properties of magnetic oxide materials and exploration of magnetic oxides semiconductor (zno) heterostructures
... deposited at different temperatures The inset is the small scale of peak (311); b) The saturation magnetization and coercivity dependence on the substrate temperature of the films deposited at different ... metals, electrostatic energies of the lattice, and the matching of the electronic configuration of the metal ions to the surrounding oxygen ions Figure Schematic diagram of the unite cell of spinel ... The results demonstrated that the magnetic oxide and ZnO system, such as Fe3O4 / ZnO, CoFe2O4 / ZnO and ZnO / SRO, is an intriguing and promising candidate for the realization of multifunctional...
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Electronic, magnetic and optical properties of oxide surfaces, heterostructures and interfaces role of defects
... like to sincerely thank my supervisors Prof Ariando and Prof T Venkatesan for educating and encouraging me Prof Ariando keeps me motivated in my research and persistently supports me without any ... between two band insulators SrTiO3 and LaAlO3 in 2004 [17], the role of oxygen vacancies in electrical properties of SrTiO3 has again attracted a significant attention as it is of great importantance ... temperature measurements Instead, the phenomenon is attributed to the formation of a quasi-conduction band in the defect states of RAlO3 that forms a continuum state with the conduction band of...
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Slide an investigation into some approaches to vocabulary teaching and learning and the application of games in teaching and learning vocabulary at pre – intermediate level at foreign language center – haiphong university
... 1972, p.111) Rationale Aims of the study Scope of the study Methods of the study Design of the study Research questions: What is the present situation of teaching and learning vocabulary at Pre – ... Intermediate level at FLC-HPU? What is the main reasons of the difficulties in vocabulary teaching and learning at Pre – Intermediate level at FLC-HPU? Do games help learners at Pre – Intermediate ... Pre-Intermediate level at FLC - HPU 2.1 Learners and learners’ need 2.2 Teachers and teaching methods 2.3 Material and material assessments Part two: Development Chapter three: Data collection, findings and...
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Báo cáo khoa học: Nitric oxide formation from the reaction of nitrite with carp and rabbit hemoglobin at intermediate oxygen saturations pdf
... afnity and increased cooperativity Reaction of nitrite with carp Hb at different O2 saturations Nitrite was added at an [NO ] [Hb] ratio of 2.7 and the concentrations of deoxyHb, oxyHb, metHb and ... was 5.1 mmHg and n was 1.8 (results not shown) Addition of ATP at an [ATP] [Hb] ratio of ([ATP] [Hb4] = 20) increased the P50 of carp Hb to mmHg and the n value to 2.7, showing that ATP both lowered ... and intermediate oxygen saturations, and Hb will never become fully deoxygenated It is therefore important to understand how the reaction of nitrite with Hb proceeds at intermediate oxygen saturations...
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gas sensing properties of wo3 doped rutile tio2 thick film at high operating temperature
... affected the area of the sensor surface which related to the number of adsorbed oxygen ions and the gas sensing properties Also, we assumed that the high heat treatment temperature of the sensor ... gases, CO, O2 and CO2, at 600 °C, and a gas mixture (NO2 + oxidizing gases) with CO, O2 and CO2 concentrations of 1000 ppm, 15% and 10%, respectively The detection results of the fabricated sensor ... fabricated sensor, it was used to detect NO2 and other oxidizing gases (CO, CO2 and O2) The sensor was operated at 600 °C The ratio of the WO3 doping into TiO2 was varied among (undoped), 11 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 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 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 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 đặc tuyến hiệu suất h fi p2 đặc tuyến tốc độ rôto n fi p2 đặc tuyến dòng điện stato i1 fi p2 sự cần thiết phải đầu tư xây dựng nhà máy thông tin liên lạc và các dịch vụ phần 3 giới thiệu nguyên liệu chỉ tiêu chất lượng theo chất lượng phẩm chất sản phẩm khô từ gạo của bộ y tế năm 2008