106,290 research outputs found
Replication Data for: Cash Is King: The Role of Financial Infrastructure in Digital Adoption
No full textThese files contain the replication codes and pseudo data files for the RCFS paper “Cash is King: The Role of Financial Infrastructure”, co-authored by Bhavya Agarwal, Nirupama Kulkarni, and S. K. Ritadhi
Joshua Davis: Author of Spare Parts
No full textCitation: K-State First (2016). Joshua Davis: Author of Spare Parts [Flier]. Manhattan, Kansas: K-State First.Flyer advertising Joshua Davis's author talk at Kansas State University
Steven Johnson Author Talk Poster
No full textK-State Book NetworkA poster advertising an author talk by Steven Johnson at Kansas State University on September 3, 2014. Steven Johnson's book "The Ghost Map" was the 2014-2015 common book
A note on a result of Singh and Kulkarni
No full textWe prove that if f is a transcendental meromorphic function of
finite order and ∑a≠∞δ(a,f)+δ(∞,f)=2, then
K(f(k))=2k(1−δ(∞,f))1+k−kδ(∞,f), where K(f(k))=limr→∞N(r,1/f(k))+N(r,f(k))T(r,f(k)) This result improves a result by Singh and Kulkarni
Selectivity for dimers in pentene oligomerization over acid zeolites
No full textThe reactions of 1-pentene over acid zeolites were investigated in the liquid phase at 473 K. The primary reactions were isomerization, dimerization, and subsequent cracking of dimers. Zeolites consisting of only 10-membered (MFI) or 12-membered rings (FAU, BEA) behaved similarly, with dimerization and subsequent cracking products observed. Zeolites possessing 8-membered ring pores (MOR, FER) showed very different selectivity from each other and from other zeolites. MOR showed almost complete conversion of C10 olefins, such that hexene and butene from cracking were the dominant products. FER showed high activity and selectivity for dimerization, with very small amounts of cracking products observed.Peer reviewe
An existence theorem and lattice approximations for a variational problem arising in computer vision
No full textCover title.Includes bibliographical references.Supported by the U.S. Army Research Office (Center for Intelligent Control Systems) DAAL03-86-K-0171 Supported in part by the Department of the Navy for SDIO.Sanjeev R. Kulkarni, Sanjoy K. Mitter, Thomas J. Richardson
Some discrete approximations to a variational method for image segmentation
No full textCover title.Includes bibliographical references (p. 12-13).Research supported by the U.S. Army Research Office. DAAL03-86-K-0171 Research supported by the Air Force Office of Scientific Research. AFOSR 89-0276 Research supported by the Department of the Navy under an Air Force Contract. F19628-90-C-0002S.R. Kulkarni and S.K. Mitter
UCo2Sn, UCo4Sn and UCo5Sn: a crystallographic and magnetic investigation
No full textIn our investigation of Co-rich alloys in the ternary U–Co–Sn system, we have identified three intermetallic compounds with composition UCo2Sn, UCo4Sn and UCo5Sn, respectively. The existence and the crystal structure of the first compound, already known in the literature, have been confirmed, while the latter two compounds have been identified for the first time. The crystal structure of these compounds was determined
by X-ray diffraction methods, performed both on powders (all samples) and single crystals (UCo4Sn and UCo5Sn). The crystal data are as follows (lattice constants from Guinier powder patterns): UCo2Sn [UPd2Sn-type, orthorhombic, oP16-Pnma, a = 9.402(3), b = 4.321(1), c = 6.615(2)A° ], UCo4Sn [MgCu4Sn-type, cubic, cF24-F4 ̄3m, a = 6.992(2)A° ] and UCo5Sn [CeCu4.38In1.62-type, orthorhombic, oP56-Pnnm,
a = 10.250(1), b = 16.012(2), c = 4.837(1)A° ]. The physical properties of the compounds have been studied by electric transport (1.5–300K), heat capacity (1.8–40 K) and magnetic measurements (1.8–300 K). The magnetisation data reveal weakly paramagnetic behaviour (with weak low temperature upturn due to parasitic impurity phases) in all the three alloys and absence of long-range magnetic ordering, despite the presence of uranium and a substantially high concentration of cobalt. The results for UCo2Sn are in agreement with earlier reports in the literature. The magnitudes of the coefficients of the linear term in the heat capacity and the T2 term in the low temperature resistivity track the room temperature
magnetisation
Dissolved fulvic acids from a high arsenic aquifer shuttle electrons to enhance microbial iron reduction
No full textCitation: Harshad V. Kulkarni, Natalie Mladenov, Diane M. McKnight, Yan Zheng, Matthew F. Kirk, Diana R. Nemergut, Dissolved fulvic acids from a high arsenic aquifer shuttle electrons to enhance microbial iron reduction, In Science of The Total Environment, 615, 1390-1395, https://doi.org/10.1016/j.scitotenv.2017.09.164It was demonstrated more than two decades ago that microorganisms use humic substances, including fulvic acid (FA), as electron shuttles during iron (Fe) reduction in anaerobic soils and sediments. The relevance of this mechanism for the acceleration of Fe(III) reduction in arsenic-laden groundwater environments is gaining wider attention. Here we provide new evidence that dissolved FAs isolated from sediment-influenced surface water and groundwater in the Bengal Basin were capable of electron shuttling between Geobacter metallireducens and Fe(III). Moreover, all four Bangladesh sediment-derived dissolved FAs investigated in this study had higher electron accepting capacity (176 to 245 μmol/g) compared to aquatic FAs, such as Suwanee River Fulvic Acid (67 μmol/g). Our direct evidence that Bangladesh FAs are capable of intermediate electron transfer to Fe(III) supports other studies that implicate electron shuttling by sediment-derived aqueous humics to enhance Fe reduction and, in turn, As mobility. Overall, the finding of greater electron accepting capacity by dissolved FAs from groundwater and other sediment-influenced environments advances our understanding of mechanisms that control Fe reduction under conditions where electron transfer is the rate limiting step
Swift heavy ion beam induced recrystallization of amorphous Si layers
No full textThis paper focuses on the role of electronic energy loss in ion beam induced epitaxial crystallization for which swift heavy ions (100 MeV Ag7+) have been used. We observed good epitaxial crystallization at 473-623 K, which is a much lower temperature regime as compared to the one needed for conventional solid phase epitaxial growth. A systematic planar recrystallization has been observed as a function of temperature giving rise to an activation energy of 0.25 +/- 0.02 eV. A possible mechanism of recrystallization is discussed on the basis of the production of vacancies along the track of the swift heavy ion and their migration at elevated temperatures. (c) 2005 Elsevier B.V. All rights reserved
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