Showing 1 - 10 of 23
Fe2O3/γ–Al2O3 catalyst is prepared by incipient wetness impregnation. The catalyst is characterized by temperature programmed reduction (TPR), X-ray diffraction (XRD), scanning electron microscope (SEM) and thermogravimetric analysis (TGA). The catalytic activity of Fe2O3/γ–Al2O3 catalysts...
Persistent link: https://www.econbiz.de/10011044991
We construct a functional for amphiphile–polymer mixtures and investigate the demixing transition by using a proposed version of density functional theory. It is found that increase of the amphiphilic size ratio and polymer length can effectively promote phase separation of the systems. Phase...
Persistent link: https://www.econbiz.de/10010874773
Persistent link: https://www.econbiz.de/10010947794
Using density functional theory, we investigate the effective interaction between a big colloid immersed in a sea of small colloids and a wall which has different affinity to the small colloids. Steele 10-4-3 potential is introduced to mimic both short-range repulsive and long-range attractive...
Persistent link: https://www.econbiz.de/10010872493
Prior research has estimated piecemeal the determinants of audit fees, non-audit services fees and abnormal accruals. Intuition, informal analysis, and a variety of theories of various aspects of auditor-client interaction suggest that audit fees, nonaudit fees, and abnormal accruals are jointly...
Persistent link: https://www.econbiz.de/10005587021
Prior research has estimated piece-meal the determinants of audit fees, non-audit fees and abnormal accruals. Intuition, informal analysis, and a variety of theories suggest that audit fees, non-audit fees, and abnormal accruals are jointly determined. We address this endogeneity issue by...
Persistent link: https://www.econbiz.de/10005701292
We examine the relationship between security analyst turnover and the relative accuracy of their annual earnings and cash flow forecasts. Controlling for self-selection in an analyst’s decision to issue a cash flow forecast, we find that relatively more accurate earnings and cash flow...
Persistent link: https://www.econbiz.de/10010603369
In this paper, we obtain a new generalization of Chebyshev’s inequality for random elements taking values in a separate Banach space.
Persistent link: https://www.econbiz.de/10010576141
This research examines the effects of consumers' insecurity on their preferences for nostalgic products. Using survey data from a sample of 356 Chinese consumers, the analysis shows that existential insecurity and social insecurity enhance consumers' preference for nostalgic products. In...
Persistent link: https://www.econbiz.de/10010703074
Prior research has estimated piece-meal the determinants of audit fees, non-audit fees and abnormal accruals. Intuition, informal analysis, and a variety of theories suggest that audit fees, non-audit fees, and abnormal accruals are jointly determined. We address this endogeneity issue by...
Persistent link: https://www.econbiz.de/10008853005