McKenzie examples in structural analysis
... Figure 1.1 is: Sum of the forces in the direction of the X-axis ΣFx=0 Equation Sum of the forces in the direction of the Y-axis ΣFy=0 Equation Sum of the forces in the direction of the Z-axis ΣFz=0 ... about the same axis, i.e where: A is the total area of the cross section is the distance in the x direction to the centroid for the total area is the distance in the y direction to the centroid for ... about the X-axis ΣMx=0 Equation Sum of the moments of the forces about the Y-axis SMy=0 Equation Sum of the moments of the forces about the Z-axis ΣMz=0 Equation Equations to represent the static...
Ngày tải lên: 11/08/2014, 18:19
... sequence is then used to calculate the loglikelihoods for the model The word associated with an HMM of the highest log-likelihood is declared to be the recognized word In our classifier, the size ... in the test 0004.2 Effect of the Number of Zones Z The total number of images used in the test used in The total number of The number of zones determines the size of a feature thetestx 60 The ... that the recognition speed in our paper doesn't include the time used for pro-processing and the saving of the final recognition results 100 the other two continuous moments, no matter the number...
Ngày tải lên: 24/04/2014, 13:02
... synthesize the pictorial form of the approximation (as shown in Figure 1) The synthesized images are used mainly for visualization (to estimate how accurately, from the human perspective, the ... (and their counterparts for other patterns) are basically the same for both grey-level and color images The only difference is that for color images, moments are 3D vectors (moments computed for ... transform or moments) The primary measure would be used to localize the feature candidates The secondary measure would provide the (absolute-value) estimate of whether the local maximum of the...
Ngày tải lên: 22/06/2014, 01:20
Báo cáo sinh học: "Bending out and breaking away: host-cell accomplices in retroviral escape" pot
... overexpression of the former can compensate for the loss of the latter, but the opposite is not the case ESCRTII functions to recruit ESCRTIII to the membrane Recent studies have confirmed the interaction ... was attributed to the potentially low levels of endophilin required for virion production, or the presence of other members of the endophilin family that could make up for the reduction in endophilin ... cytoplasm? Is there a need for cellular enzymes such as endophilin to introduce negative curvature (bending towards the outside of the cell) by modifying the lipid composition of the membrane?...
Ngày tải lên: 06/08/2014, 18:20
Báo cáo y học: "Potential Adverse and Allergic Reactions from Complementary and Alternative Medicine and Dietary Supplements" pptx
... ClearLungs Chinese Formula For The Lungs ClearLungs Chinese Formula For The Lungs was a herbal supplement It was manufactured by Ridgecrest Herbals, Inc., Salt Lake City, UT Listed under the section ... ClearLungs Chinese Formula for the Lungs and YOUR CHOICE – SPORTS 52 EPHEDRINE – HCL (30 mg) capsules were used by the third patient for allergic rhinitis and asthma The composition of the first preparation ... On the other hand, patients with the more common dairy product allergy, for example, may be in trouble with the second preparation, which contains whey The CAM product ClearLungs Chinese Formula...
Ngày tải lên: 08/08/2014, 21:20
Báo cáo khoa học: " Correction of patient positioning errors based on in-line cone beam CTs: clinical implementation and first experiences" pptx
... from the kV-source to the front plane of the detector is approximately 140 cm Therefore the central axis of the kV-imaging beam is always aligned with the central axis of the MV therapy beam Another ... feature of the in-line geometry is that the FPI can take images using the kV- and the MV-beam at the same time This enables the online validation of the delivered fluence to the patient and the possibility ... mm around the axes through the isocenter) Deformations of the target were not accounted for Only the target translations could be used for the target positioning process, in which the translation...
Ngày tải lên: 09/08/2014, 10:21
ab initio investigation of the thermochemistry, spectroscopy and dynamics of reactions between mercury and reactive halogen species
Ngày tải lên: 14/11/2014, 13:35
36 pericyclic reactions 2 sigmatropic and electrocyclic reactions from organicchemistry clayden
Ngày tải lên: 13/04/2015, 15:23
Reactions of pyridazine and some gaseous oxides on the GE(100) surface
... π for one molecule and unoccupied π ∗ for the other or vice versa) must match in symmetry, otherwise the reaction is forbidden For two alkene molecules both in electronically ground state, the ... as the transition state when the H atom approaches the upper dimer atom Finally the X-H bond breaks, and the new Ge-H bond forms simultaneously as well as the X→Ge dative-bond converts to the ... confirmed that the interdimer desorption model rather than the intradimer (pre-paring) one is more consistent with the desorption kinetics [166] 1.4.2.2 Hemihydrides The hemihydride forms at the initial...
Ngày tải lên: 08/09/2015, 22:20
Direct asymmetric vinylogous reactions of furanones and phthalide derivatives with bifunctional and trifunctional organocatalysts
... state model, the thiourea interacts with the nitro group and the free alcohol activates the indole proton via weak hydrogen bond The exceptionally simple operational procedure and the highly synthetic ... Morita-Baylis-Hillman reaction represents an important method for the C-C bond formation The generated functionalized allylic alcohol is of considerable value for the synthesis of complex natural products Morita-Baylis-Hillman ... essential for the high enantioselectivity; 3) Phase transfer catalysts The reaction usually proceeds through an ion-pairing interaction between the catalyst and substrate, which is important for the...
Ngày tải lên: 10/09/2015, 08:24
Surface and interfacial reactions involving inorganic and organic semiconductor substrates
... shift from the Fermi edge of the metal gives the relative position of the HOMO from the Fermi level of the metal (EF,HOMO in Figure 2.2 (b)) The shift of the left-hand cutoff corresponds to the lowering ... interacted with the bulk-adsorbed oxygen, which migrates to the surface in response to the deposition of aluminium atoms, to form a layer of metal oxides On the other hand, the evolution of the UPS spectra ... are generated by the termination of radical formed in solution Furthermore, the final degree of polymerization (DP) of the tethered chains on the surface can be dictated by the concentration...
Ngày tải lên: 14/09/2015, 18:14
Probing transient species in plasmas and photodissociation reactions using infrared and raman laser spectroscopy
... investigating the plasmas using OES, they found the emission intensity of C2 to increase linearly with the growth rate of diamond as shown in Fig 1.8, therefore they drew the conclusion that the C2 ... collaborators were the first to study the phenomena in the discharge in the early 1920’s and it was Langmuir who gave the ionized gas the name of ‘plasma’ [1] The plasma is considered the fourth state ... system They monitored CF3 and CF4 and calculated the densities of these species from the strength of the measured absorptions In this study they found that the CF4 density depended only on the plasma...
Ngày tải lên: 16/09/2015, 17:11
Theoretical studies of engertics, structures and chemical reactions on carbon and BN surfaces and related molecules
... chapter for this thesis It summarises all the work presented in this thesis and suggests possibilities for further work The computation work presented in this thesis was performed in the Institute ... wavefunction depends on the coordinates of the electrons and the nuclei The Hamiltonian is composed of three parts: the kinetic energy of the nuclei, the kinetic energy of the electrons, and the potential ... understanding of the surface growth mechanism To the best of our knowledge, the theoretical research for polar surface (111) of c-BN is limited to the work of Kadas et al.[73] They performed ab initio...
Ngày tải lên: 17/09/2015, 17:18
Catalytic fast pyrolysis of biomass the reactions of water and
... three hours for the four samples There was thus ample time for the carbonaceous deposits on the catalyst to mature into coke, which likely reduced the amount of organics released during the steam ... recorded for the tails after the pulses, for example the tail of pulse from Fig was averaged from time = to minutes and it produced the mass spectrum shown in Fig 3A This spectrum shows that the composition ... of 0.35, where the signals stay constant for the remainder of the experiment This increase is likely due to an increase in hydrocarbon species trapped in the pores of the catalyst These species...
Ngày tải lên: 09/10/2015, 14:39
Báo cáo toán học: " Existence and uniqueness of nonlinear deflections of an infinite beam resting on a non-uniform nonlinear elastic foundation" pptx
... analyzed elastic beams on “nonlinear” foundations They organized the midpoint difference method for solving the basic differential equation for the elastic deformation of a beam supported on an elastic, ... justifiably rule out the case k = 0; hence, we assuming k > for the rest of the article Define N (u, x) := f (u, x) − ku, (12) which is the nonlinear and non-uniform part of the restoring force f (u, x) ... to the extreme case η = 1, and the non-uniformity increases as η becomes smaller In order for our current method to work, the condition F4 limits the non-uniformity η by η0 ≈ 0.123 Using the...
Ngày tải lên: 20/06/2014, 20:20
báo cáo hóa học:" Existence and uniqueness of nonlinear deflections of an infinite beam resting on a non-uniform nonlinear elastic foundation" docx
... analyzed elastic beams on “nonlinear” foundations They organized the midpoint difference method for solving the basic differential equation for the elastic deformation of a beam supported on an elastic, ... justifiably rule out the case k = 0; hence, we assuming k > for the rest of the article Define N (u, x) := f (u, x) − ku, (12) which is the nonlinear and non-uniform part of the restoring force f (u, x) ... to the extreme case η = 1, and the non-uniformity increases as η becomes smaller In order for our current method to work, the condition F4 limits the non-uniformity η by η0 ≈ 0.123 Using the...
Ngày tải lên: 21/06/2014, 20:20
A CFD analysis of transport phenomena and electrochemical reactions in a tubular-shaped PEM fuel cell
... cell performance The model accounts for both gas and liquid phase in the same computational domain, and thus allows for the implementation of phase change inside the gas diffusion layers The model ... performance If the number of steps approaches infinity, the stepped flow field extends to a tapered field that has the lowest cell performance The lower the number of steps and the height of the ... along with the momentum equations the pressure distribution inside the channels The continuity equation for the gas phase inside the channel is given by; ∇ ⋅ rg ρ g u g = (1) ( ) and for the liquid...
Ngày tải lên: 05/09/2013, 14:58
35768 Study of Electrode Reactions and Interfacial Properties
... (independent of the applied potential) For these reasons, the reversal current has the same shape as does the forward one As will be discussed in Chapter 4, the use of ultramicroelectrodes for which the ... by extrapolating the preceding baseline current The position of the peaks on the potential axis (Ep) is related to the formal potential of the redox process The formal potential for a reversible ... concentration gradients for the reactant and product at different times corresponding to (a) the initial potential value, (b,c) the formal potential of the couple (during the forward and reversed...
Ngày tải lên: 25/10/2013, 08:20
Recording Your Questions and Reactions
... Besides, who wants to see other people airing their dirty laundry? Answers You might have written comments like the following in the margin or at the end of the paragraph: The paragraph doesn’t include ... with yet another string, so that soon the information is thoroughly anchored in your memory Making connections between the text and your own experience also makes the ideas and information that ... comments show that the reader is really thinking about what she’s reading The more she thinks about it, the more effective use she can make of the material, and the easier it will be for her to remember...
Ngày tải lên: 25/10/2013, 17:20