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The rational enterprise decision makers tradeoff between returns and risks. Customer portfolio paradigm is a favorable tools to increase the value of customer base and reduce its risks. After analyzing the similarities and differences of the financial assets and customer equity, a customer portfolio optimization model is proposed. In this model, semi-variance is employed as the risk metrics considering...
This research examines the impact of perceived social environment on entrepreneurial intention based on the mediating role of entrepreneurial self-efficacy (ESE) in the context of China. Our results indicated that perceived social environment have positive impact on students' entrepreneurial intention and the impact among two specific role of perceived environment is different. Inspiration has the...
This study focused on the characteristics of the removal of Cr(VI)(Cr6+) from wastewater with fly ashes (FAs), a by-product from coal-fired electric power plants. The influences of NaCl dose, pH, agitated time and fly ash (FA) dose (the temperature is 50°Cin the test) were investigated in batch experiments, and the removal of Cr6+ and sorption capacity with modified fly ashes (MFAs) were compared...
Mainly containing organic materials, the printing and dyeing wastewater is a kind of industrial pollution with complex composition and high colority, which is difficult to be treated. With the large volume of new auxiliary and slurry applied to the modern textile industry, the biodegradability rate of organic pollution decreased and it is more difficult to be treatment. Comprehensively considered...
To advance the vehicle setting accuracy, mixed navigation system emerges as the times require. The keystone of mixed navigation research is how to make use of multi-sensor's locator data effectively. Multi-sensor data fusion technology is an innovation for data processing developed recently, and data fusion method research is paid close attention to generally. The classical linearity least-squares...
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