The recent rising popularity of ultra-fast delivery services on retail platforms fuels the increasing use of urban warehouses, whose proximity to customers makes fast deliveries viable. The space limit in urban warehouses poses a problem for the online retailers: the number of products (SKUs)...

The exchange bias effect obtained after zero field cooling (ZEB) not only saves energy, but also makes the device easier to control and reduces the size of the device. In this work, ZEB effect under different measurement field is obtained in Ni 50 Mn 37 Ga 13 alloy, further, combining the...

The exchange bias effect obtained after zero field cooling (ZEB) not only saves energy, but also makes the device easier to control and reduces the size of the device. In this work, ZEB effect under different measurement field is obtained in Ni50Mn37Ga13 alloy, further, combining the macroscopic...

Based on survey data from Ji’nan city and some other cities in Shandong province, this paper conducted a research on consumers' perception degree of the food safety risk, and the awareness degree about organic food. Then taking organic milk as an example, the factors affecting the...

Generalized autoregressive conditional heteroskedasticity (GARCH) processes have become very popular as models for financial return data because they are able to capture volatility clustering as well as leptokurtic unconditional distributions which result from the assumption of conditionally...

The world has been severely challenged by the Coronavirus Disease (COVID-19) outbreak since the early 2020s. Worldwide, there have been more than 66 million cases of infection and over 3,880,450 deaths caused by this highly contagious disease. All sections of the population including those who...