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To reduce the energy consumption of heavy duty construction vehicle pollution,and improve the capacity of the complex conditions of the vehicle,the multi-metal complex with stepless transmission and front / rear axle torque distribution device in the traditional drive system are imported,a new mathematical model of heavy duty four-wheel heavy duty construction vehicle is established,finally,a four-wheel drive heavy duty construction vehicle traction integrated control strategy is obtained.The results show that large ratio change conditions required for the engine reaches maximum speed of the longest and highest speed reached a minimum;small ratio change conditions can achieve high speed,the speed curve more smooth and steady acceleration phase speed change under the conditions of large ratio rate change;after the introduction of traction control system,slip phenomenon can be well suppressed over a driving wheel,the drive wheel speed control range of the space in the target vehicle speed.

How does information credibility, a subjective judgment of investors, affect empirical asset pricing in financial markets? Traditional economic theories are inadequate for interpreting market responses driven by people's subjective thinking, as these cognitive processes are not encompassed by the concept of utility. We explore these effects by using computational linguistics and deep structured learning algorithms to analyze financial newspapers and social media posts. After controlling for factors related to content and market momentum in our narrative based credibility indicator, we find that news credibility is positively correlated with the returns on assets preferred by experts and negatively correlated with assets preferred by gamblers. Based on this finding, we point out that the efficient-market hypothesis (EMH) is not appropriate in the dominant market of gamblers in the short-term. In the long-term, however, investment motivation does not significantly affect the validity of the hypothesis. [ABSTRACT FROM AUTHOR]

Users rely heavily on mobile phones as multi-purpose devices to support all kinds of tasks. This study conceptualises mobile phone deep structure use and aims at unveiling such behaviour. Towards this end, this study goes beyond the traditional technology usage theories based on rationality and instrumentality. It is replaced by a relationship-based theory, the attachment theory, to investigate how users' attachment to mobile phones is formed and how such attachment influences mobile phone deep structure use. A survey approach was adopted to test the research model empirically. The results showed that mobile functional dependence and mobile identity constituted the two dimensions of mobile attachment, which significantly affected mobile phone deep structure use. Mobile functional dependence was formed based on the two enabling factors (perceived functional flexibility and perceived mobility). Mobile identity was formed based on the two enriching factors (self-expressive symbolism and categorical symbolism). Both mobile functional dependence and mobile identity were influenced by the gratifying factor, design aesthetics. This study has made contribution to the literature of mobile phone usage by clarifying the special characteristics of mobile phone usage context, proposing a new theoretical perspective and constructing a nomological network of the mobile attachment construct. [ABSTRACT FROM AUTHOR]

To investigate the correlation between electrochemical performance and physicochemical properties, three types of 1D WO3 nanostructures were fabricated by hydrothermal method using K2SO4, Na2SO4, and (NH4)2SO4 as capping agents. Hexagonal phase was obtained with the assistant of Na2SO4 and (NH4)2SO4, while monoclinic phase was developed using K2SO4 as agent. WO3 nanostructures prepared by (NH4)2SO4 and Na2SO4 exhibited superior specific capacitance (400 F/g and 388 F/g) relative to WO3 prepared by K2SO4 (259 F/g), suggesting hexagonal phase is more suitable for energy storage. The nanostructures prepared using Na2SO4 exhibited inferior rate performance compared with those obtained by (NH4)2SO4 due to low specific surface area and high crystallinity. The electrochemical performance demonstrated nanostructures prepared by (NH4)2SO4 was surface-controlled whereas those using Na2SO4 and K2SO4 were battery-type material. These findings raise the prospects of developing tungsten oxide for energy storage. [ABSTRACT FROM AUTHOR]