... marked seen that methane concentration starts decreasing at 1,200 K and reaches almost zero at 4,000 K At this temperature hydrogen concentration is at maximum of 78.8 % Further heating results ... conservation law: qÁ • equation of state: cp Á where q is density, li—molecular weight of component, n—number of components, Yi = qi/q—mass fraction of component i; Wi—chemical production rate of ... discharges at atmospheric pressure are efficient sources of reactive plasma, which can be employed for gas processing such as decomposition of volatile organic compounds, purification of noble...
Ngày tải lên: 01/11/2022, 09:03
... 5.4 Volatility, as it affects rate of evaporation, is an impor- n—the temperature of the saturated vapor measured in the neck tant factor in the application of many solvents, particularly of the ... approximately one theoretical plate fractionation Sys- 6.2 A detailed description of the apparatus is given in Annex tematic observations of temperature readings and volumes of A2 condensate ... Fuels at Atmospheric Pressure1 This standard is issued under the fixed designation D86; the number immediately following the designation indicates the year of original adoption or, in the case of...
Ngày tải lên: 10/03/2024, 03:31
experimental investigation of the mechanical properties of dry microbraids and microbraid reinforced polymer composites
... results of this study indicate that the braiding process can be used to manipulate and modify, to some extent, the mechanical properties of the precursor materials for the creation of new materials ... disadvantages of this technique, different characterisation methods currently employed and applications of BRPC in the composite industry Omeroglu [7] investigated the properties of dry 2D polypropylene ... investigated the tensile and fatigue properties of epoxyreinforced laminates made from 2/2 carbon braid slit sleeves and flattened braided tubes As the fibre bias angle increased, the ultimate tensile...
Ngày tải lên: 02/11/2022, 10:39
DSpace at VNU: Structural and magnetic properties of starch-coated magnetite nanoparticles
... blocking temperature In addition, a decrease of saturation magnetisation (Ms) with starch modification is found Figure Transmission electron microscopy images of (a) uncoated and (b) starch-coated magnetite ... that the starch-coated layer rather well protects them from oxidation and reinforces the magnetic stability Surface modification of magnetite does not only prevent aggregation and oxidation of ... investigation have an average size of about 14 nm The coated magnetic nanoparticles exhibit super-paramagnetic behaviours with a blocking temperature of about 170 K and saturation magnetisation...
Ngày tải lên: 16/12/2017, 00:01
DSpace at VNU: Properties of the Wave Curves in the Shallow Water Equations with Discontinuous Topography
... Shallow Water 311 2.2 Properties of Stationary Contacts Given a state U0 = (h , u , a0 ) and another bottom level a = a0 , we let U = (h, u, a) be the corresponding right-hand state of the stationary ... Sect 2, given a state U0 = (h , u ) at topography level a0 , the state U = (h, u) at topography level a = a0 that can be connected to U0 by a stationary wave satisfies the equations F(h; U0 ) ... that a state U1 is located below the curve W2B (U2 ) if and only if U2 is located above the curve W2 (U1 ) in the (h, u)-plane Proof The state U1 is located below the curve W2B (U2 ) means that...
Ngày tải lên: 16/12/2017, 01:09
DSpace at VNU: Electrochemical Properties of LaNi5-xGax Alloys Used as the Negative Electrodes of Ni-MH Batteries
... diffusion of hydrogen atoms into material particles The change of the charge quantity Q of electrode materials at the same scanning rate is illustrated in Figure The results show that for the ... and M Gupta 2011 Investigation of modification of hydrogenation and structural Properties of LaNi5 intermetallic compound induced by substitution of Ni by Pd.’’ J Solid State Chem 184: 123–133 Prigent, ... cycles of materials were more stable and durable, and can serve as an electrode of a battery The effect of the substitution of Ni by Ga on the course of the hydrogen storage capacity of LaNi5-xGax...
Ngày tải lên: 16/12/2017, 01:31
DSpace at VNU: Coarse grained simulation reveals antifreeze properties of hyperactive antifreeze protein from Antarctic bacterium Colwellia sp.
... algorithm33 at atmospheric pressure with the damping coefficient of 0.1 ps of Parrinello-Rahman pressure. 34 The structures were generated as the configurations for our MD simulation with 12 temperatures ... indicated, through coarse grained simulation of ColAFP under various subfreezing temperature, that ColAFP remains active at temperature of equal and greater than 275 K (~2 0C) Extensive d simulation ... simulated at 271 K, 273 K, 275 K, 277 K, 279 K, 281 K and 303 K (Fig 1b) The snapshots of waters-ions complexes simulated at 271 K, 281 K and 303 K indicates different water states in the form of...
Ngày tải lên: 16/12/2017, 04:34
DSpace at VNU: NaOH Urea Aqueous Solutions Improving Properties of Regenerated-Cellulosic Fabrics
... liquor ratio of : 40 with untreated and treated fabrics of CLY and CV cut in 100 cm2 pieces The samples were dyed at a Werner Mathis AG LABOMAT dyeing machine, with continuous and alternate agitation ... investigated concentrations and mixtures of solutions Figure 10 shows representative series of SEM images of CLY fabrics treated with Mix A, B, and C with magnification of 3500Â The images of single ... padded once at 3.5 bar nip pressure and speed of m/min in Mathis padder laboratory module The padded fabrics were batched h at room temperature, rinsed with hot and cold running tap water, neutralized...
Ngày tải lên: 16/12/2017, 06:17
DSpace at VNU: Enhanced mechanical and thermal properties of recycled ABS nitrile rubber nanofil N15 nanocomposites
... aspect ratios of nanofillers at a very low content In addition, many studies indicated that compatibilization of the polymer blend components can be achieved by the incorporation of nanofillers ... re-ABS matrix The XRD and TEM studies demonstrated that N15 was mainly located in the re-ABS matrix in the form of an intercalated-exfoliated mixed structure that led to SC an increase of the ... decreasing the SC total free energy of mixing [23, 24] The dispersion status and localization of nanofillers are predominant factors that affect the enhancement of properties of the polymer blend Depending...
Ngày tải lên: 16/12/2017, 10:26
DSpace at VNU: Related magnetic properties of CoFe2O4 cobalt ferrite particles synthesised by the polyol method with NaBH4 and heat treatment: new micro and nanoscale structures
... standard pattern, and with a ratio of c/a=1 (PDF-22-1086, CoFe2O4 system) by using Software of Materials Data JADE and MDI Material data for XRD pattern processing In the reflections from lattice ... ferrimagnetic properties of CoFe2O4 ferrite materials with high coercivity and saturation magnetization were discussed in their grain and grain boundary structures of CoFe2O4 materials as magnetic ... temperature (Tc) of magnetic materials influenced on the magnetic status of the material It possibly leads ferrimagnetic properties of CoFe2O4 materials to be changed into their paramagnetic properties...
Ngày tải lên: 16/12/2017, 12:02
DSpace at VNU: Precise measurements of the properties of the B-1(5721)(0,+) and B-2 (5747)(0,+) states and observation of B-+,B-0 pi(-,+) mass structures
... based on a data sample corresponding to 3.0 fb−1 of pp collision data, recorded by the LHCb detector at centre -of- mass energies of and TeV Precise measurements of the masses and widths of the B1 ... measurements of the properties of the B1(5721)0,+ and B2∗(5747)0,+ states and observation of B +,0π −,+ mass structures Contents Detector and dataset Event selection 4 Fit model Fit results Systematic ... candidate The invariant mass and χ2 /ndf (ndf is the number of degrees of freedom) of the B ∗∗ candidate vertex fit are calculated constraining the B candidates and companion pion to originate...
Ngày tải lên: 16/12/2017, 14:28
DSpace at VNU: Tuning Magnetic Properties of BiFeO3 Thin Films by Controlling Rare-Earth Doping: Experimental and First-Principles Studies
... appropriate concentration, targeting to obtain the largest magnetization possible at room temperature, and at a relatively low field The aim of the present work is to understand the relationship ... peak of the majority-spin of the Bi 6s state is found between -10 and -11 eV Because of the coupling between the Bi 6s and the O 2p state, the antibonding Bi 6s state is found at the top of the ... 60 Page 16 of 28 Our study on RE- doped BiFeO3 thin films have reported that all the films of 10% of RE doping show a single phase of rhombohedral structure The saturated magnetization in Ho-,...
Ngày tải lên: 16/12/2017, 14:58
DSpace at VNU: A systematic study of influence of ligand substitutions on the electronic structure and magnetic properties of Mn-4 single-molecule magnets
... (LS) state with configuration d4(t2g4, eg0) There are three possible spin states of Mn2+ ions: the HS state with configuration d5(t2g3, eg2), the intermediate-spin (IS) state with configuration d5(t2g4, ... I and I* Our calculations show that the LS state of Mn2+ ions is more favorable than the IS state of Mn2+ ions in Types II and II* of Mn4+Mn2+3 molecules, while the IS state of Mn2+ ions is more ... the observation of the projected density of state (pDOS) at the Mn(1) site of (17) in the paper by Han’s et al.,25 we found the existence of the spin-up states just below the Fermi level at this...
Ngày tải lên: 16/12/2017, 17:21
DSpace at VNU: Recursive properties of Dirac and metriplectic Dirac brackets with applications
... of 13 material points, Fig We found that symbolic calculation each pair of explicit analytical equations for humanoid takes app using formula (3.6) for inverting matrix S, of uninterrupted Mathematica ... time-consuming We have looked at the possibility of using our method to obtain a set of analytical equations and simulate mechanics of the caricatured human body [19] Instead of models for body dynamics, ... computing one pair of equations of motion by the Eqs (3.6) and (2.15) (a) Energy calculated from Eqs (3.2) and (3.7) (c) Sum of constraints errors calculated from Eq (3.2) (b) Energy calculated from...
Ngày tải lên: 16/12/2017, 18:04
fluid mechanics with multimedia dvd, fifth edition
... (12.94) b ¼ Poisson’s ratio n O ¼ origin p ¼ pressure patm ¼ atmospheric pressure pi ¼ inside pressure po ¼ outside pressure p0 ¼ reference pressure at z ¼ pN ¼ reference pressure far upstream ... exposed to the atmosphere, the pressure just below the interface at point E is below atmospheric The pressure then increases linearly along EF At F the pressure again equals the atmospheric pressure, ... constant In atmospheric science, G h dT/dz is the atmospheric temperature gradient or lapse rate The rate of temperature decrease in an isentropic atmosphere Ga is dTa =dz h Ga ¼ ÀgaT=Cp , (1.30)...
Ngày tải lên: 02/04/2014, 14:50
fluid mechanics, fourth edition
... Properties of Pure Water at Atmospheric Pressure Properties of Dry Air at Atmospheric Pressure Properties of Standard Atmosphere ... write relations such as p = p(v, T ) (thermal equation of state), e = e(p, T ) (caloric equation of state) (1.12) 14 Introduction Such relations are called equations of state For more complicated ... exposed to the atmosphere, the pressure just below the interface at point E is below atmospheric The pressure then increases linearly along EF At F the pressure again equals the atmospheric pressure, ...
Ngày tải lên: 02/04/2014, 14:53
ASTM D86 Standard Test Method for Distillation of Petroleum Products at Atmospheric Pressure
... Standards:5 IP 69 Determination of Vapour Pressure Reid Method IP 123 Petroleum Products—Determination of Distillation Characteristics IP 394 Determination of Air Saturated Vapour Pressure IP Standard Methods ... distillation is performed in a laboratory batch distillation unit at ambient pressure under conditions that are designed to provide approximately one theoretical plate fractionation Systematic ... calibration of the temperature measurement system at elevated temperatures, use hexadecane The temperature measurement system shall indicate, at 50% recovered, a temperature comparable to that shown...
Ngày tải lên: 20/10/2014, 17:17
Tài liệu Bioregulatory Properties of Medications Aiming at Multiple Targets Open New Therapeutic Perspectives doc
... that the protective effect of Traumeel may be because of reduced degradation or activated formation of ECM, attenuated migration and/or mobilization of granulocytes, or reduced susceptibility of ... demonstrated that the efficacy of 28 days of local treatment with Traumeel ointment was comparable to that of diclofenac gel.15 Improvements were observed in most patients after to days of treatment ... mechanism of action of linearly inhibiting one of the master regulators of inflammation-related mechanisms.81 The totality of preclinical research suggests that Traumeel has a remarkable scope of action...
Ngày tải lên: 21/02/2014, 17:20
Inverse modeling for retrieval of optical properties of sea water and atmospheric aerosols from remote sensing reflectance
... the validation of HYPERION data, it was compared to well known atmospheric correction schemes such as TAKFAA and one that corrects for Rayleigh scattering The optical properties of atmospheric ... water reflectance in the midst of the dominating path reflectance which arises from the multiple scattering of solar radiation by molecules and particulates in the atmosphere In this work an atmospheric ... transmittance of light from air to water n is the refractive index of water The underwater remote sensing reflectance is related to the absorption coefficient of water atot (λ) and backscattering coefficient...
Ngày tải lên: 11/09/2015, 16:05
Atomistic simulations of the mechanical properties of nanocrystalline copper at room temperature
... size of 6.70 nm at different strain levels (a) the atomic configuration at 0% strain; (b) the atomic configuration at 4.4% strain; (c) the atomic configuration at 9.6% strain; (d) the relative ... relative displacement of the atomic motion in the x-direction to the uniform deformation at 4.4% strain; (d) the atomic configuration at 19.2% strain; (e) the relative displacement of the atomic ... different deformation stages (a) the atomic configuration before deformation; (b) the atomic configuration at 9.6% deformation; (c) the relative displacement of the atomic motion in the x-direction...
Ngày tải lên: 30/09/2015, 14:23
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