نتایج جستجو برای: isomer shift
تعداد نتایج: 143222 فیلتر نتایج به سال:
The generation of angular momentum in the fission process is still an open question. To shed light on this topic, we started a series measurements at IGISOL-JYFLTRAP facility Finland. Highprecision isomeric yield ratios (IYR) are performed with Penning trap, partly aim to extract average root-mean-square (rms) quantities fragment spin distributions. newly installed Phase-Imaging Ion-Cyclotron R...
DFT calculations have been performed for all isomeric chlorofluoroethenes. The relative stabilities of different isomers have been calculated and compared with experimental enthalpies of formation. The DFT method, which uses the non-local density approximation (NLDA) and Becke-Lee-Yang-Parr functional, has been found to be a fairly reliable method for predicting relative thermodynamic stabilities.
F. Naqvi,1,2,* M. Górska,2 L. Cáceres,2,3,† A. Jungclaus,4 M. Pfützner,5 H. Grawe,2 F. Nowacki,6 K. Sieja,6 S. Pietri,7,‡ E. Werner-Malento,5,§ P. H. Regan,7 D. Rudolf,8 Z. Podolyák,7 J. Jolie,1 K. Andgren,9 T. Beck,2 P. Bednarczyk,2,10 J. Benlliure,11 G. Benzoni,12 A. M. Bruce,13 E. Casarejos,11,‖ B. Cederwall,9 F. C. L. Crespi,12,14 P. Detistov,15,¶ Zs. Dombrádi,16 P. Doornenbal,2,** H. Geiss...
Intermetallic compounds of Dy2Fe16Ga1−xNbx (x = 0.0 to 1.00) were synthesized by arc melting. Samples investigated for structural, magnetic, and hyperfine properties using X-ray diffraction, vibration sample magnetometer, Mossbauer spectrometer, respectively. The Rietveld analysis room temperature diffraction data shows that all the samples crystallized in Th2Fe17 structure. unit cell volume al...
The two major manufacturing techniques for perfluorochemicals can be distinguished based on the isomeric profile of their products. ECF (major use from 1950s to 2002) results in a product containing both linear and branched isomers, while telomerization (major use from 2002 to present) typically yields an isomerically pure, linear product. Among the most important question today, which has impl...
Isomers of C11H8 have been theoretically examined using density functional theory and coupled-cluster methods. The current investigation reveals that 2aH-cyclopenta[cd]indene (2), 7-ethynyl-1H-indene (6), 4-ethynyl-1H-indene (7), 6-ethynyl-1H-indene (8), 5-ethynyl-1H-indene (9), 7bH-cyclopenta[cd]indene (10) remain elusive till date in the laboratory. puckered low-lying isomer 2 lies at 9 kJ mo...
in many signal processing applications, an appropriate measure to comparetwo signals plays a fundamental role in both implementing the algorithm andevaluating its performance. several techniques have been introduced in literature assimilarity measures. however, the existing measures are often either impractical forsome applications or they have unsatisfactory results in some other applications....
Large porphyrinoids with three Rh(CO)2 groups at their dipyrrin units shows two-step metal transposition through the macrocycle in solution and the equilibrium between the C3v-isomer and the Cs-isomer depends on the solvent polarity.
The cobalt glycyl-leucine dipeptide is a model system for studying the effects of Karplus equation calibration, molecular mechanics accuracy, backbone conformation, and thermal motions on the measurability of side chain rotational isomer populations. We analyze measurements of 8 vicinal coupling constants about the α to β-carbon and β to γ-carbon bonds of the leucine side chain and of 10 NOESY ...
a-Conotoxins are peptides isolated from the venom ducts of cone snails that target nicotinic acetylcholine receptors (nAChRs). They are valuable pharmacological tools and have potential applications for treating a range of conditions in humans, including pain. However, like all peptides, conotoxins are susceptible to degradation, and to enhance their therapeutic potential it is important to elu...
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