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M. Fleischmann P.J. Hendra I.R. Hill M.E. Pemble 《Journal of Electroanalytical Chemistry》1981,117(2):243-255
The enhanced Raman spectra of water molecules and chloride ions coadsorbed at an electrochemically roughened silver electrode are reported. The spectra are discussed in terms of specifically adsorbed chloride ions. 相似文献
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M N Jalil R A Zuidwijk M Fleischmann Jo A E E van Nunen 《The Journal of the Operational Research Society》2011,62(3):442-457
Many of the challenges in spare parts logistics emerge due to the combination of large service networks, and sporadic/slow-moving demand. Customer heterogeneity and stringent service deadlines entail further challenges. Meanwhile, high revenue rates in service operations motivate companies to invest and optimize the service logistics function. An important aspect of the spare parts logistics function is its ability to support customer-specific requirements with respect to service deadlines. To support customer specific operations, many companies are actively maintaining and utilizing installed base data during forecasting, planning and execution stages. In this paper, we highlight the potential economic value of installed base data for spare parts logistics. We also discuss various data quality issues that are associated with the use of installed base data and show that planning performance depends on the quality dimensions. 相似文献
206.
Baldermann S Mulyadi AN Yang Z Murata A Fleischmann P Winterhalter P Knight M Finn TM Watanabe N 《Journal of separation science》2011,34(19):2759-2764
Centrifugal precipitation chromatography and a high-speed counter-current chromatography system equipped with a spiral tubing support rotor (spHSCCC) were successfully applied for the identification and isolation of carotenoid cleavage-like enzymes from Enteromorpha compressa (L.) Nees. This is the first study separating active enzymes from a complex natural matrix by spHSCCC. The target enzymes were identified after fractionation of the proteins in an acetone Tris-buffer gradient by centrifugal precipitation chromatography. Also, an aqueous two-phase solvent system consisting of PEG 1000 and mono- and dibasic potassium phosphate was used for the isolation of the enzymes by spHSCCC. The purified fractions contained two proteins of 65 and 72 kDa, respectively. The enzymes could cleave β-carotene and β-apo-8'-carotenal to produce β-ionone. 相似文献