molecular model and crystal structure
Properties of the hole injection layer in organic semiconducting devices
... Sugiyama, E Ito, and K Seki, "Energy level alignment and interfacial electronic structures at organic/ metal and organic/ organic interfaces.," Adv Mater 11, 605 (1999) 34 D Cahen and A Kahn, "Electron ... the equation σ = I×L , σ is conductivity in S cm–1, I and V V ×W × d are current and voltage respectively, L and W refers to the length and width of the channel of conduction d is the thickness ... Excitation: Mg Kα, θ=90°, and resolution of 1.0eV Spectrum has been background corrected and fitted with known band shape of PEDT+ (Blue dashed line), PSS- (Green dashed line) and PSSH (Purple dotted...
- 135
- 1,091
- 0
Báo cáo khoa học: Light-induced reactions of Escherichia coli DNA photolyase monitored by Fourier transform infrared spectroscopy pot
... negative difference bands which can be attributed to the consumption (negative difference bands at 1425, 1326 and 1289 cm)1) and the formation (positive difference bands at 1464, 1396 and 1302 cm)1) ... deoxy-5-fluorouridine oligonucleotide shows major positive difference bands at 1741, 1460 and 1392 cm)1 and negative bands at 1715, 1410, 1364 and 1274 cm)1 DNA photorepair The subsequent experiments addressed ... in positive difference bands at 1464, 1396 and 1302 cm)1 which belong to the photodamaged form of DNA Negative difference bands are observed at 1483, 1424 and 1289 cm)1 and Fig FT-IR difference...
- 12
- 393
- 0
báo cáo hóa học:" Fourier-transform infrared anisotropy in cross and parallel sections of tendon and articular cartilage" pptx
... citation purposes) Journal of Orthopaedic Surgery and Research 2008, 3:48 Structural and biochemical alteration in the microstructure and composition of molecular networks in the tissue due to any ... 11 12 Kannus P: Structure of tendon connective tissue Scand J Med Sci Sport 2000, 10:312-320 de Campos Vidal B: Image analysis of tendon helical superstructure using interference and polarized ... Orthopaedic Surgery and Research 2008, 3:48 ized and uniform fiber bundles, type II collagen fibrils are found maximally in articular cartilage that are organized in a depth-dependent structure [7-11],...
- 12
- 384
- 0
báo cáo hóa học:" Analysis of ovarian tumor pathology by Fourier Transform Infrared Spectroscopy" pdf
... normal and malignant ovarian tissue spectra is observed in the region of 1500-1700 cm-1 (Figure 3) This region denotes amide I, II and III bands of proteins Vibrational bands at 1630, 1642 and 1647 ... simple, rapid and nondestructive technique that is adaptable for solids, liquids, and gases with a minimal sample preparation and can be used for both qualitative identification and the quantitative ... spectra of the normal and malignant tissue in the region 900-1300 cm-1 [32] The two major bands in this region at 1078 cm-1 and 1238 cm-1 are mainly due to the symmetric and asymmetric stretching...
- 6
- 324
- 0
Fourier transformed infrared absorption spectroscopy and kinetics studies of gas phase small molecules
... with the product OCSe and CSe with O2 will be studied as well Computational studies of the vibrational frequencies and band strengths of the species involved and the energies and geometries of reactive ... reactions with CSe2, SCSe and OCSe good match between the experimental and calculated bond lengths and bond angles Table 2.1 shows the calculated vibrational frequencies and band intensities as well ... area under the vibrational band 38 Chapter O (3P) atom reactions with CSe2, SCSe and OCSe TABLE 2.1: The experimental and calculated vibrational frequencies and band intensities (after scaling)...
- 152
- 276
- 0
Real-Time Digital Signal Processing - Chapter 7: Fast Fourier Transform and Its Applications
... the DTFT of periodic and finite-length sequences Example 7.1: If the signals fx
ng are real valued and N is an even number, we can show that X
0 and X
N=2 are real values and can be computed ... advantages, and disadvantages Each FFT has different strengths and makes different tradeoffs between code complexity, memory usage, and computation requirements The FFT algorithm introduced by Cooley and ... x(0), x(4), x(2), and x(6) because x(0), x(2), x(4), and x(6) are considered to be the 0th, 1st, 2nd, and 3rd inputs in a 4-point DFT Similarly, the order of x(1), x(5), x(3), and x(7) is used...
- 47
- 634
- 0
Tài liệu Báo cáo Y học: Electrochemical, FT-IR and UV/VIS spectroscopic properties of the caa3 oxidase from T. thermophilus docx
... oxidized and the negative signals with the reduced form of the enzyme For the reduced form, the Soret band can be observed at 415 and 442 nm, and for the oxidized form at 403 and 422 nm The b–band ... can be seen at 517 nm and the a–band at 547 nm and 603 nm The difference signals that can be observed between 400 and 700 nm include the contributions of the hemes c, a and a3 The difference ... comparison to IR and Raman spectra of heme model compounds, other oxidases, spectra of isolated amino acids as model compounds and information on contributions from the secondary structure from...
- 9
- 528
- 0
Báo cáo khoa học: Determination of thioxylo-oligosaccharide binding to family 11 xylanases using electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry and X-ray crystallography pot
... the crystal structures for each of the enzyme substrate (Michaelis), covalent intermediate and product complexes have been determined and further kinetically analyzed [24,25] Both uoro [2432] and ... TRX II and CTX using high-eld ESI FT-ICR MS and X-ray crystallography Results and Discussion ESI FT-ICR analyses Figure presents typical 9.4 T ESI FT-ICR mass spectra of TRX I, TRX II and CTX ... IPL3 ị in which IP and IPLn are the intensities of a free protein and different proteinligand complexes summed over the charge states and the isotopic distributions The free ligand concentration...
- 17
- 382
- 0
Báo cáo khoa học: Structural study of the catalytic domain of PKCf using infrared spectroscopy and two-dimensional infrared correlation spectroscopy pot
... of the bands making up the amide I or I¢ region Thereafter, curve fitting was performed and the heights, widths and positions of each band were optimized successively Data treatment and band decomposition ... Goni ˜ FM (1994) Structure and thermal denaturation of crystalline and noncrystalline cytochrome oxidase as studied by infrared spectroscopy Biochemistry 33, 11650–11655 Krimm S & Bandekar J (1986) ... the secondary structure and the CO heme ligand environment in cytochrome P-450cam and cytochrome P-420cam Biochemistry 36, 8125–8134 49 De las Rivas J & Barber J (1997) Structure and termal stability...
- 14
- 383
- 0
Comparison between the Matrix Pencil Method and the Fourier Transform Technique for High-Resolution Spectral Estimation
... For the best estimate, and f2 f1 Å 0.070 Hz, the lower limit is between and dB, as is shown in Fig 13 Figures 14 and 15 have been extracted from the data used in Figs and and thus correspond to ... , and the variable vm in ( 4.2.1 ) will be chosen as unknown parameters Note that Am is given by ( 4.2.2 ) and, therefore, each Am corresponds to two parameters, É AmÉ and um On the other hand, ... is, Z0f b and Z1f b are less sensitive than Z0 and Z1 to small changes in the element values With (3.1) and (3.2) one can build the Matrix Pencil, Z1f b jZ0f b ( j is a complex scalar), and follow...
- 18
- 415
- 0
Báo cáo hóa học: " Aqueous-Phase Synthesis of Silver Nanodiscs and Nanorods in Methyl Cellulose Matrix: Photophysical Study and Simulation of UV–Vis Extinction Spectra Using DDA Method" docx
... SPR band at *400 nm, while Ag nanorods usually show a red-shifted long-axis resonance (longitudinal plasmon band) and a slightly blueshifted short-axis resonance (transverse plasmon band); and ... *800, *420, and *330 nm The band at *330 nm is attributed to the out-of-plane quadrupole resonance The band at *800 and *420 nm are due to in-plane dipole resonance (longitudinal) and out-ofplane ... highly crystalline in nature A closer look on the SAED pattern of Fig 1b(ii) suggests that the ring having d-values 2.50, 1.227, 1.451, and ˚ 2.093 A corresponds 1/3(422), (311), (220), and (200) crystal...
- 8
- 348
- 0
báo cáo hóa học:" Research Article Pitch- and Formant-Based Order Adaptation of the Fractional Fourier Transform and Its Application to Speech Recognition" pptx
... described and illustrated using FFT- and FrFTbased spectrograms of an artificially generated vowel In Section 5, a tonal vowel discrimination test is designed, and the results are given and analyzed ... presents the ASR experimental results and discussion Conclusions and suggestions for future work are given in Section The AM-FM Model of Speech A speech production model generally contains three components: ... even within a frame Considering the fluctuation of pitch and the harmonic structure, voiced speech can be modeled as an AM-FM signal The AM-FM model proposed in [2] represents the speech signal as...
- 14
- 384
- 0
Electron transfer of carotenoids imbedded in MCM 41 and ti MCM 41 EPR, ENDOR and UV vis studies
... Ti-MCM-41 Peaks A, B, and C are due to the CH3 proton couplings16 at C (5 and 5′), C (9 and 9′) and C (13 and 13′) CH3 protons, respectively In contrast, an ENDOR spectrum of I and III in Ti-MCM-41 ... For ex- Figure UV-vis spectra of I, II, and III imbedded in MCM-41 and Ti-MCM-41 (a) I, (b) II, and (c) III Solid line is that for Car imbedded in MCM-41 and dashed line is that for Car imbedded ... geometry optimization Figure shows the geometries of I and Carotenoids Imbedded in MCM-41 and TI-MCM-41 Figure Geometries of I and complexes of I and Ti4+ by ZINDO/1 geometry optimizations (a) I,...
- 8
- 366
- 0
Fast fourier transform on multipoles algorithm for elasticity and stokes flow
... encouragement and great patient throughout my study Their influence on me is beyond this thesis and will benefit me in my whole life I would also like to thank Dr Carlos Rosales Fernandez and Dr Chen ... the three methods, standard volume integration (Standard), multipole accelerated volume integration (Multipole) and particular solution method from FFT (Particular), to handle the nonhomogeneous ... the three methods, standard volume integration (Standard), multipole accelerated volume integration (Multipole) and particular solution method from FFT (Particular), to handle the nonhomogeneous...
- 165
- 380
- 0
Accurate and efficient three dimensional electrostatics analysis using singular boundary elements and fast fourier transform on multipole (FFTM)
... corners and edges, and standard boundary elements with shape functions of low order polynomials fail to produce accurate results at these singular locations This thesis describes the formulation and ... bc for D = 0.2, 1.0 and 2.0 38 Figure 5.1 A “rectangular” structure with identified edges and corners 41 Figure 5.2 elements Boundary element mesh of “rectangular” structure with various ... are: (1) Modeling errors - Due to the simplifications made when transforming real physical problems into numerical models They can occur in geometrical modeling, applied boundary conditions and material...
- 168
- 159
- 0
So sánh hai phương pháp định lượng Berberin nguyên liệu bằng HPLC theo dược điển Trung Quốc (2005) và bằng đo quang phổ hấp thụ UV-VIS theo dược điển Việt Nam III.DOC
... anthracen [6] 1.1.2 Nguồn gốc: Berberin thờng có rễ, thân rễ, thân, vỏ thuộc chi Berberis, Hydrastis candensis, Coptis chinensis [18] Berberin có nhiều thân rễ vàng đắng với tỷ lệ 1,5-3%, berberin chiếm ... tác dụng kháng vi trùng nh: vi khuẩn ( shigella, tụ cầu liên cầu khuẩn), thể protozoal, vi nấm, candida, virus, nấm men, kí sinh trùng gây bệnh (kí sinh trùng sốt rét, kí sinh trùng đờng ruột)...
- 34
- 4,047
- 14
The Discrete Fourier Transform
... the bandwidth can be defined by drawing dividing lines between the samples For instance, sample number occurs in the band between 4.5 and 5.5; sample number occurs in the band between 5.5 and ... are calculated using only Re X[0] and Im X [0] Likewise, Mag X [14] and Phase X [14] are calculated using only Re X[14] and Im X [14] , and so forth To understand the conversion, consider what ... sinusoidal amplitudes and the frequency domain ¯ values In these equations, Re X [k ] ¯ and Im X [k ] hold the amplitudes of the cosine and sine waves needed for synthesis, while Re X [k ] and Im X [k...
- 28
- 677
- 0
Fourier Transform Properties
... domain results in the signal being expanded in the other domain, and vice versa Figures (c) and (d) show a discrete signal and its spectrum, respectively In (a) and (b), the time domain signal has ... wave, an upper sideband, and a lower sideband These correspond to the three parts of the original audio signal: the DC component, the positive frequencies between 0.3 and kHz, and the negative 206 ... taken of the signal in (a), and the frequency spectrum converted into polar notation To find the signal in (b), the phase is replaced with random numbers between -B and B, and the inverse DFT used...
- 24
- 477
- 0
Fourier Transform Pairs
... Eqs 11-1 and 11-2 It is often important to understand what the frequency spectrum looks like when aliasing isn't present This is because discrete signals are often used to represent or model continuous ... or model continuous signals, and continuous signals don't alias To remove the aliasing in Eqs 11-1 and 11-2, change the denominators from sin (B k / N ) to B k / N and from sin (B f ) to B f, ... of x (see Fig 11-4) 1.6 1.4 FIGURE 11-4 Comparing x and sin(x) The functions: y(x) ' x , and y(x) ' sin(x) are similar for small values of x, and only differ by about 36% at 1.57 (B /2) This describes...
- 16
- 495
- 1
The Fast Fourier Transform
... contains the number of points in the DFT, and 5020 'XR[ ] and XI[ ] contain the real and imaginary parts of the time domain 5030 'Upon return, REX[ ] and IMX[ ] contain the frequency domain data ... the complex DFT, it is important to understand how to transfer real DFT data into and out of the complex DFT format Figure 12-1 compares how the real DFT and the complex DFT store data The real ... (see Fig 10-9) The choice of a single period is arbitrary; it can be chosen between -1.0 and 0, -0.5 and 0.5, and 1.0, or any other one unit interval referenced to the sampling rate The complex DFT's...
- 18
- 555
- 1
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 gắn với các giáo trình cụ thể 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 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 sự cần thiết phải đầu tư xây dựng nhà máy 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 chỉ tiêu chất lượng 9 tr 25