136 resultados para R. Wallace
Resumo:
PEDF Pigment epithelium-derived factor PEDF PEDF-R PEDF PNPLA2 Patatin-like phopholipase domain-containing 2 familyPEDF PEDF-R A2 PEDF PEDF-R RT-PCR PEDF PEDF-R PEDF-R mRNA Morpholino(MO)PEDF PEDF-R TUNEL TUNEL PEDF-R PEDF PEDF PEDF-R vestigial vestigial(vg)vestigial vestigial-like 1,2,3,4_(vgl-1,2,3,4)Vestigial Scalloped(Sd) TEF Sd/TEF TEA/ATTS DNA vestigial-like RT-PCR vgl-2 vgl-3 vgl-1vgl-4 vgl-1 vgl-2 vgl-3 vgl-4 vestigial-like
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PEDF Pigment epithelium-derived factor PEDF PEDF-R PEDF PNPLA2 Patatin-like phopholipase domain-containing 2 familyPEDF PEDF-R A2 PEDF PEDF-R RT-PCR PEDF PEDF-R PEDF-R mRNA Morpholino(MO)PEDF PEDF-R TUNEL TUNEL PEDF-R PEDF PEDF PEDF-R vestigial vestigial(vg)vestigial vestigial-like PEDF PEDF-R vestigial-like 2 1,2,3,4_(vgl-1,2,3,4)Vestigial Scalloped(Sd) TEF Sd/TEF TEA/ATTS DNA vestigial-like RT-PCR vgl-2 vgl-3 vgl-1vgl-4 vgl-1 vgl-2 vgl-3 vgl-4 vestigial-like
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MOCVD0001C(1(1-bar)02)RInGaNInGaN40nm15nmInGaNRInGaNCInGaNPLCInGaN/GaN[0001]R[11(2-bar)0]InGaNPLPLRInGaN
Fe-57 Mossbauer spectroscopic and magnetic studies of R3Fe29-xVx (R = Y, Ce, Nd, Sm, Gd, Tb, and Dy)
Resumo:
Mossbauer spectra for Fe atoms in the series of R3Fe29-xVx (R = Y, Ce, Nd, Sm, Gd, Tb, and Dy) compounds were collected at 4.2 K. The ratio of 14.5 T/mu(B) between the average hyperfine field B-hf and the average Fe magnetic moment mu(Fe)(MS), obtained from our data, in Y3Fe29-xVx is in agreement with that deduced from the RxTy alloys by Gubbens et al. The average Fe magnetic moments mu(Fe)(MS) in these compounds at 4.2 K, deduced from our Mossbauer spectroscopic studies, are in accord with the results of magnetization measurement. The average hyperfine field of the Fe sites for R3Fe29-xVx at 4.2 K increases with increasing values of the rare earth effective spin (g(J) - 1) J, which indicates that there exists a transferred spin polarization induced by the neighboring rare earth atom.
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Fe-57 Mossbauer spectra for the Fe atoms in the R3Fe29-xTx (R=Y, Ce, Nd, Sm, Gd, Tb, Dy; T=V, Cr) compounds were collected at 4.2 K. The analysis of Mossbauer spectra was based on the results of magnetization and neutron powder diffraction measurements. The average Fe magnetic moments at 4.2 K, deduced from our data, are in accord with magnetization measurements. The average hyperfine field of Tb3Fe29-xCrx (x=1.0, 1.5, 2.0, and 3.0) decreases with increasing Cr concentration, which is also in accordance with the variation of the average Fe magnetic moment in the Tb3Fe29-xCrx compounds.
Resumo:
The crystallographic and intrinsic magnetic properties of hydride R3Fe29-xTxHy (R=Y, Ce, Nd, Sm, Gd, Tb, and Dy; T=V and Cr) have been investigated. The lattice constants and the unit cell volume of R3Fe29-xTxHy decrease with increasing R atomic number from Nd to Dy, except for Ce, reflecting the lanthanide contraction. Regular anisotropic expansions, mainly along the a- and b-axis rather than along the c-axis, are observed for all the compounds upon hydrogenation. Hydrogenation leads to an increase in Curie temperature. First-order magnetization processes (FOMP) occur in magnetic fields of around 1.5 T and 4.0 T at 4.2 K for Nd3Fe24.5Cr4.5H5.0 and Tb(3)Fc(27.0)Cr(2.0)H(2.8), and around 1.4 T at room temperature for Gd3Fe28.0Cr1.0H4.2 Abnormal crystallographic and magnetic properties of Ce3Fe29-xTxHy suggest that the Ce ion is non-triply ionized.
Resumo:
A pipeline with a bypass is widely used for the pneumatic conveying of material. The double-tube-socket (DTS (R)) technology, which uses a special inner bypass, represents the current state of the art. Here, a new methodology is proposed based on the use of computational fluid dynamics (CFD) to predict the energy consumption of DTS conveying. The predicted results are in good agreement with those from pilot-scale experiments. (C) 2010 Elsevier Inc. All rights reserved.
Resumo:
A new methodology based on the use of CFD is proposed to estimate the energy consumptions in a DTS (DOUBLE-TUBE-SOCKET) pneumatic conveying. A simple computational program based on this methodology is developed. It can directly give the lowest energy consumption and the compatible gas consumption by only input the distance of conveying and the conveying tonnage. This computational program has been validated through our experimental work.
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R IBLLLA SCARPM T,PM T,
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90 0keVSq + +H2 H+ ,Hr+ 2 , (S2 + +H2 ,S2 + +He)TOF ,
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We give a general SU(2)(L) x SU(2)(R) x U(1)(EM) sigma model with external sources, dynamical breaking and spontaneous vacuum symmetry breaking, and present the general formulation of the model. It is found that sigma and pi(0) without electric charges have electromagnetic interaction effects coming front the internal structures. A general Lorentz transformation relative to external sources J(gauge) - (J(A mu) J(A mu)(kappa)) derived, using the general Lorentz transformation and the four-dimensional current of nuclear matter of the ground si ate with J(gauge) = 0, we give the four-dimensional general relations between the different currents of nuclear matter systems with J(gauge) not equal 0 and those with J(gauge) = 0. The relation of the density's coupling with external magnetic field is derived, which conforms well to dense nuclear matter in a strong magnetic field. We show different condensed effects in strong interaction about fermions and antifermions, and give the concrete scalar and pseudoscalar condensed expressions of sigma(0) and pi(0) bosons. About different dynamical breaking and spontaneous vacuum symmetry breaking, the concrete expressions of different mass spectra are obtained in field theory. This paper acquires the running spontaneous vacuum breaking value sigma'(0), and obtains the spontaneous vacuum breaking in tenus of the running sigma'(0), which make nucleon, sigma, and pi particles gain effective masses. We achieve both the effect of external sources and nonvanishing value of the condensed scalar and pseudoscalar paticles. It is deduced that the masses of nucleons, sigma and pi generally depend on different external sources.
