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Wide visible emission and narrowing band gap in Cd-doped ZnO nanopowders synthesized via sol-gel route.
(Elsevier Ltd., 2016)
Cd doped ZnO nanopowder (Zn1−XCdXO, 0.15≤ X ≤0.45) has been synthesized by facile sol-gel method. The X-ray diffraction (XRD) shows the powder possess polycrystalline with hexagonal wurtzite structure of ZnO without formation ...
Nonparametric mixed ratio estimator for a finite population total in stratified sampling
(Pakistan Journal of Statistics and Operation Research, 2010)
We propose a nonparametric regression approach to the estimation of a finite population total in model based frameworks in the case of stratified sampling. Similar work has been done, by Nadaraya and Watson (1964), Hansen ...
Dicarbonyl (η5-cyclopentadienyl)(hexamethylenetetramine-κN1) iron (II) tetrafluoridoborate
(International Union of Crystallography, 2012)
In the structure of the title compound, [Fe(C5H5)(C6H12N4)-(CO)2]BF4, the arrangement around the FeIIatom corresponds to that of a three-legged piano stool. The cyclopenta-dienyl ligand occupies three coordination sites ...
A Multiplicative Bias Correction for Nonparametric Approach and the Two Sample Problem in Sample Survey
(Scientific Research Publishing, 2017)
Let two separate surveys collect related information on a single population U. Consider situation where we want to best combine data from the two surveys to yield a single set of estimates of a population quantity (population ...
(μ-Ethane-1, 2-diamine-κ2N: N′) bis [dicarbonyl (η5-cyclopentadienyl) iron (II)] bis (tetrafluoridoborate)
(International Union of Crystallography, 2011)
The asymmetric unit of the title compound, [Fe2(C5H5)2- (C2H8N2)(CO)4](BF4)2, contains two half-cations, each
located on a center of symmetry, and two tetrafluoridoborate anions. The iron atoms adopt a three-legged ...
Acetonitriledicarbonyl (η5-pentamethylcyclopentadienyl) iron (II) tetrafluoridoborate
(International Union of Crystallography, 2011)
In the structure of the title compound, [Fe{5-C5(CH3)5}- (NCCH3)(CO)2]BF4, the arrangement of ligands around the
Fe atom is in a pseudo-octahedral three-legged piano-stoolfashion in which the pentamethylcyclopentadienyl ...
Variance Estimation in Stratified Random Sampling in the Presence of Two Auxiliary Random Variables
(International Journal of Science and Research, 2014)
The objective of this paper is to develop an improved population variance estimators in the presence of two auxiliary
variables in stratified random sampling adapting the family of estimators proposed by Koyunchu and ...
Regioselective reactions of electrophilic iron dicarbonyl cations, [(η5-C5R5)(CO)2Fe]+ (R = H, CH3) with heterofunctional amine ligands
(Elsevier, 2012)
The reactions of the ether salts [(η5-C5R5)(CO)2Fe(E)]BF4, (R = H, E = Et2O; R = CH3, E = THF) with various ligands possessing two different coordination sites have been investigated. It was established that [(Cp(CO)2Fe(OEt2)]BF4 ...
Dicarbonyl (hexamethylene-1, 3, 5, 7-tetramine-κN1)(η5-pentamethylcyclopentadienyl) iron (II) tetrafluoridoborate
(International Union of Crystallography, 2012)
In the title compound, [Fe(C10H15)(C6H12N4)(CO)2]BF4, the arrangement around the FeIIatom corresponds to a three-legged piano stool. The pentamethylcyclopentadienyl (Cp*) ligand occupies three coordination ...