insulation daily variation of air temperature one dimensional heat flow
Thermal stresses and temperature control of mass concrete
Ngày tải lên :
21/04/2015, 13:38
... Table 2.4 Conduction of Heat in Mass Concrete, Boundary Conditions, and Methods of Solution 2.3 2.3.1 19 Air Temperature Annual Variation of Air Temperature The variation of air temperature in year ... impact of the creep effect of the concrete 1.3 1.3.1 The Variation of Temperature and Thermal Stress of Mass Concrete with Time The Variation of Temperature of Mass Concrete with Time Because of ... Figure 2.5 Variation of air temperature in a cold wave Ta Ac Q τ1 τ 20 Thermal Stresses and Temperature Control of Mass Concrete where T0—the initial air temperature Ac—the maxima drop of air temperature...
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hydrothermal synthesis and crystal structure of a novel one - dimensional tritungstate
Ngày tải lên :
19/03/2014, 16:48
... w15x 4y ŽFig 3Žb The anionic chain of W6 O 20 of is constructed from corner- and edge-sharing WO6 octahedra 4y while the one- dimensional chains of Mo O 20 of ŽC H 10 N2 wMo O 10 x w15x is built ... Comparison of the one- dimensional chains adopted by the anions in: Ža ŽC H 10 N2 wW3 O10 x 1; Žb ŽC H 10 N2 wMo O10 x w15x; and Žc an open framework solid K wW3 O10 x w16x clinic one- dimensional ... from 1-, 2- and 4y 4-coordinated oxo groups Each W6 O 20 unit consists of a pair of center -of- symmetry-related W3 O 10 trimers of edge-sharing WO6 octahedra as shown in Fig Adjacent 4y W6 O 20 units...
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physics of zero and one dimensional nanoscopic systems, 2007, p.346
Ngày tải lên :
04/06/2014, 15:01
... might have not seen the light of the day In this context, we also thank Prof Hans Weidenmueller, Prof Yoseph Imry, Prof Markus Buttiker, Prof Amnon Aharony and Prof Yigal Meir for their advices ... context of correlated electron systems The first of these developments is of purely theoretical nature and goes under the name of dynamical mean-field theory [17] (DMFT) The DMFT has become one of the ... (n) One of the remarkable outcomes of their study is that the pertinent group parameters (such as the value of n) can be controlled by experimentalists The reason for that is that the Kondo temperature...
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A structural model of one dimensional thin silica nanowires
Ngày tải lên :
16/03/2014, 15:03
... due to both its relatively small number of 2MRs and the attendance of BO atoms As shown in Fig 1, the energetic stability of the SU-2MR chains exceeds those of ES-2MR chains and also rings as n ... Fig HOMO–LUMO gaps of the silica molecular chains as a function of n for (a) SU-2MR chains, and (b) ES-2MR chains The insets show the isodensity surfaces of the HOMO and LUMO of the SU-2MR chain ... LUMOs of these chains highly localize at the ends of the chains, making mainly these regions responsible for their energy gaps As an example, the insets of Fig show the isodensity surfaces of the...
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One dimensional organic nanostructures a novel approach based on the selective adsorption of organic molecules on silicon nanowires
Ngày tải lên :
16/03/2014, 15:35
... thickness of the ONWs is of the order of several ångström, the observed LDOS is a convolution of the LDOS of the SiNWs and that of the adsorbed PQ aggregates Therefore, the contribution of the LDOS of ... analysis of the Si2p core levels and valence band of the surface [1] To address the issue of whether or not any type of molecule will react exclusively with the SiNWs, we used two different types of ... MRSEC of the National Science Foundation (DMR-0213706) are gratefully acknowledged We thank the group of Prof S Marder, Georgia Institute of Technology, for providing the THAP molecules, and Prof...
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synthesis of one-dimensional sno2 nanorods via a hydrothermal technique
Ngày tải lên :
20/03/2014, 13:08
... increasing the temperature and extending the heating duration leads to an increase of the surface-to-volume ratio of nanorods The concentration of tin ions in solution also influences to the size of nanorods ... the SEM images of the as-grown products synthesized on SiO2/Si substrates The products consist of nanorods as well as nanoparticles The diameters of SnO2 nanorods are in the range of 100–150 nm ... are in the range of 100–150 nm with lengths of the order of 1–2 mm The end planes of the nanorods are tetragonal (see inset Fig 1a) The morphology of nanorods is found to be dependent on the...
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d. of c 219. You should get into the habit of ……………… at least one newspaper daily. a. pot
Ngày tải lên :
18/06/2014, 17:20
... getting b about getting c of getting d for getting c 242 The people at the party were worried about Jane because no one was aware ……………… she had gone a of where b of the place where c where ... a flowers b fruit c basket of fruit d money c 252 Did they …………… to Polihale Beach when they were in Hawaii? a go b went c gone d to go a 253 Do you think ………… is a good gift? a gloves b money ... d visited b 321 Did they say they …………… me? a will telephone b would telephone c have telephoned d had telephoned b 322 The …………… of coming in time in small a possible b possibly c possibility...
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Báo cáo sinh học: " Research Article One-Dimensional Compressible Viscous Micropolar Fluid Model: Stabilization of the Solution for the Cauchy Problem" pot
Ngày tải lên :
21/06/2014, 16:20
... for one- dimensional flow of a compressible viscous c zc fluid: stabilization of the solution,” Glasnik Matematiˇ ki In press c N Mujakovi´ , “Nonhomogeneous boundary value problem for one- dimensional ... Mujakovi´ , One- dimensional flow of a compressible viscous micropolar fluid: the Cauchy c problem,” Mathematical Communications, vol 10, no 1, pp 1–14, 2005 N Mujakovi´ , “Uniqueness of a solution of the ... small perturbations of the constants Boundary Value Problems In the proof of Theorem 2.1, we apply some ideas of and obtain the similar results as in where a stabilisation of the generalized...
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Báo cáo sinh học: " Research Article Multiple Positive Solutions of Fourth-Order Impulsive Differential Equations with Integral Boundary Conditions and One-Dimensional p-Laplacian" ppt
Ngày tải lên :
21/06/2014, 16:20
... has at least one positive solution y t , t ∈ J with property 3.17 Proof The proof is similar to that of Theorem 3.2 of Theorem 3.5 Assume that H1 , H2 , 3.1 of H3 and 3.14 and 3.15 of H4 hold ... < ξ < L 3.27 Proof If 3.1 of H3 holds, similar to the proof of 3.7 , we can prove that Ty PC1 ≤ y PC1 y ∈ K, , y l PC1 3.28 If 3.14 and 3.15 of H4 hold, similar to the proof of 3.23 , we have ... being sufficiently large, BVP 1.6 has at least one positive solution y t , t ∈ J with property 3.4 Proof The proof is similar to that of Theorem 3.1 of 16 Boundary Value Problems In Theorem 3.3,...
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báo cáo hóa học:" Connectivity analysis of one-dimensional vehicular ad hoc networks in fading channels" pot
Ngày tải lên :
21/06/2014, 17:20
... because of disconnections In traffic theory, this is known as the free flow state [3] In this paper, we investigate the connectivity properties of one- dimensional VANET in the presence of channel ... located on the roadside) The amount of multi-path component depends on the surroundings of the highway, i.e., presence of obstacles and reflectors and the number of moving (vehicles) obstacles on ... is used to model propagation paths consisting of one strong LOS component and many random weaker components In rural highways, the multipath components may be weak, so the communication can be...
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Báo cáo hóa học: "One-Dimensional Nanostructures and Devices of II–V Group Semiconductors" ppt
Ngày tải lên :
21/06/2014, 20:20
... as-synthesized Cd3P2 and Zn3P2 nanotubes because of the release of builtin strain Nanowires Nanowire is one of the most common 1-D structure and many kinds of materials can form into the nanowire structures ... function of temperature in vacuum [63] A SEM image of the Zn3P2 MIS-FET is depicted in Fig 8c inset Figure 8c displays the I–V curves of a Zn3P2 bicrystal nanobelt MIS-FET device measured in the temperature ... Figure 4a is a SEM image of the synthesized Zn3P2 nanobelts with rectangular cross-sections, which have diameters of about 100–200 nm and thickness of 40 nm A TEM image of a single Cd3P2 nanobelt...
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Báo cáo hóa học: "Facile Synthesis and Tensile Behavior of TiO2 One-Dimensional Nanostructures" doc
Ngày tải lên :
22/06/2014, 00:20
... 850 °C for 60 Illustration of the effect of reaction temperatures: the nanostructures were synthesized at 750 °C (c) and 1050 °C (d) for 60 Illustration of the effect of reaction time: the nanostructures ... lattice fringes in the inset have a neighboring spacing of 0.358 nm, close to the d-spacing of (110) plane of rutile TiO2 The growth direction of the nanostructure is close to the [210] direction ... the effectiveness of them was found to be in the order of Ni [ (Au, Ag) [ (Pd, Pt) While a catalytic material was used in syntheses, it can be detected from the tips of most of nanostructures...
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Báo cáo hóa học: " Synthesis, Optical Properties, and Photocatalytic Activity of One-Dimensional CdS@ZnS Core-Shell Nanocomposites" pdf
Ngày tải lên :
22/06/2014, 01:20
... (inset of Fig 3a) of a single nanowire is also consistent with the single crystalline nature of CdS indexed as the [010] zone axis In Fig 3c, the CdS nanowire is coated with a thin layer of ZnS ... enlargement of the marked region in Fig 3c, from which we can see the shell is made up of ZnS nanoparticles of *4 nm diameter growing along 123 Fig SEM images (a) of CdS nanowires and (b) of 1D CdS@ZnS ... (SAED) pattern of the CdS@ZnS nanocomposite is mainly composed of two sets of diffraction patterns The dashed parallelogram is À indexed as that of hexagonal CdS along the ½2 1 zone axis and diffraction...
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Báo cáo hóa học: "Tunable self-assembly of one-dimensional nanostructures with orthogonal directions" docx
Ngày tải lên :
22/06/2014, 22:20
... release of H2 to create the hBN layers The sample is exposed to · 10–7 mbar of borazine vapor for (equal to 41 Langmuir) at a given sample surface temperature, followed by one minute of post-annealing ... periodicity of 1.26 nm are clearly visible in STM images of the h-BN phase (The image was taken with a bias voltage of VB = 1.8 V and a set tunneling current of IT = nA.) The corrugation in STM images of ... suitable for a variety of molecules [26] Since changing the preparation temperature allows to tune precisely the relative weights of the two phases, one can control the process of self-assembly, which...
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Báo cáo khoa học: "Daily and seasonal variation of stem radius in oak" pot
Ngày tải lên :
08/08/2014, 14:21
... which variation was much lower compared to the variation of air temperature That is why the impact of temperature (up to 0.003 mm) was lower then the error of measurement The radial expansion of ... Analysis of variance of stem radial variation The analysis of variance showed that the environmental factors explained 75 % of seasonal variation of stem are visible on the diurnal courses of stem ... hypotheses where construction of the model applied rate of usage of the old assimilates for radial cambium temperature The cambium temperature derived from air temperature according to Herrington...
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Báo cáo sinh học: "Metabolite-based clustering and visualization of mass spectrometry data using one-dimensional self-organizing map" ppt
Ngày tải lên :
12/08/2014, 17:20
... according to a one- dimensional linear array In that way, the projection onto an ordered set of prototypes also provides a dimensionality-reduced representation of the data in terms of a one- dimensional ... applied by means of two -dimensional SOMs [16] Unlike classical SOM applications, our one- dimensional map can be used to visualize the variation of intensity profiles along the array of prototypes ... Figure Leave -one- out correlation of 1D-SOM vs HCA/K-means Leave -one- out correlation of 1D-SOM vs HCA/K-means Measuring robustness in terms of the leave -one- out (Loo) correlation of 1D-SOM in...
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Novel aspects of localization, delocalization, and anomalous transport in one dimensional systems
Ngày tải lên :
09/09/2015, 08:16
... 3.5 Lyapunov exponent of the GSL with disordered square scalar potential 3.6 Lyapunov exponent of the GSL with amplitude-disordered δ vector potential 42 3.7 Lyapunov exponent of the GSL with ... of random matrices shown in Eq (3.15) Since the pioneering work of Furstenberg [145, 146], it is well known that the larger eigenvalue of such a product grows exponentially with probability one ... single layer of graphite, i.e., it 1.2 Physics of Disorder in Current Research Frontiers is a 2D allotrope of graphite with carbon atoms organizing into a honeycomb lattice structure [42] One fundamental...
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The greens function for the initial boundary value problem of one dimensional navier stokes equation
Ngày tải lên :
09/09/2015, 10:15
... equations As a result, the study of the Navier-Stokes equations becomes one of the most popular areas of modern mathematics In this thesis, We will focus on the one dimensional Navier-Stokes equations ... expression, one can see that the viscosity also depends on temperature In real life, most problems we meet, as been before mentioned, like the water flow in a pipe, the air flow around the wing of an aircraft, ... and Yu studied the fundamental solution of one dimensional Boltzmann equation and the large time behaviors of the solutions The proof is based on two types of decompositions: the particle-wave decomposition...
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Template assisted synthesis and study of one dimensional nanostructures array
Ngày tải lên :
10/09/2015, 09:29
... List of Publications ……………………………………………….… xi List of Tables ………………………………………………………… xiii List of Figures ………………………………………………………… xiv List of Abbreviations ………………………………………………… xxi 1.2 One- dimensional ... List of Abbreviations LOD Limit of detection LOL Limit of linearity M1 First metal component M2 Second metal component MWCNT Multi-walled carbon nanotubes MWCNT/PPV-n Label for samples of MWCNT/PPV ... range of applications As proposed by Pokropivny et al.,9 nanostructures can be classified according to their dimensionality as a whole, that is zero -dimensional (0D), one- dimensional (1D), two-dimensional...
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