Buscar
Mostrando ítems 21-30 de 527
Pilomyxoid astrocytoma of the brainstem
(2013-04-15)
A pilomyxoid astrocytoma is a recently described tumor that occurs predominantly in the hypothalamic-chiasmatic region and is rarely found elsewhere. It has similar features as pilocytic astrocytomas, but has distinct ...
Influence of the incorporation of fibers in biscuit dough on proton mobility characterized by time domain NMR
(2016)
The effect of fiber addition on the distribution and mobility of protons in biscuits is studied by using low resolution time domain Nuclear Magnetic Resonance (TD-NMR). The proportion of flour is reduced in order to ...
NMR relaxation studies of slow motions of HDA hydrocarbons chains inside lamellar structures
(TAYLOR & FRANCIS, 2006)
Measurements of H-1 and C-13 Nuclear Magnetic Resonance (NMR) for the nanocomposite materials formed by the intercalation of hexadecylamine (HAD) in metal oxides (TiO2, V2O5, CrO3 and MoO3), are reported. The H-1 NMR ...
Nuclear magnetic resonance of protons on DMSO-02-NaX Zeoli te-system
(Facultad Experimental de Ciencias de la Universidad del Zulia, 2010)
Polarization of Σ+ hyperons produced by 800 GeV/c protons on Cu and Be
(2004-12-01)
We show that Σ+ hyperons produced by 800 GeV/c protons on targets of Be and Cu have significant polarizations (15-20%). These polarizations persist at values of pt = 2 GeV/c and a wide range of xF. The polarizations from ...
Polarization of Σ+ hyperons produced by 800 GeV/c protons on Cu and Be
(2004-12-01)
We show that Σ+ hyperons produced by 800 GeV/c protons on targets of Be and Cu have significant polarizations (15-20%). These polarizations persist at values of pt = 2 GeV/c and a wide range of xF. The polarizations from ...
Thermal Behavior and Spectroscopic Study of Neutral and Cationic Mononuclear Cyclopalladated Compounds
(2003-11-25)
The reactions of the precursor [Pd(N,C-dmba)(MeCN)2](NO 3) (1) (dmba = N,N-dimethylbenzylamine), with the proligands 3,5-dimethylpyrazole (Hdmpz), 2-quinolinethiol (qnSH) and 1,1′- bis(diphenylphosphine)ferrocene (dppf) ...
Thermal Behavior and Spectroscopic Study of Neutral and Cationic Mononuclear Cyclopalladated Compounds
(2003-11-25)
The reactions of the precursor [Pd(N,C-dmba)(MeCN)2](NO 3) (1) (dmba = N,N-dimethylbenzylamine), with the proligands 3,5-dimethylpyrazole (Hdmpz), 2-quinolinethiol (qnSH) and 1,1′- bis(diphenylphosphine)ferrocene (dppf) ...
Comparison of Mean-Field Theory and 1 H NMR Transversal Relaxation of Poly(dimethylsiloxane) Networks
(American Chemical Society, 2001-01)
We have estimated the mass fraction of elastic and pendant chains of model poly- (dimethylsiloxane) (PDMS) networks using transverse proton relaxation in nuclear magnetic resonance (1H NMR). These experiments were compared ...