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With the increasing demand for express delivery, a courier needs to deliver many tasks in one day and it's necessary to deliver punctually as the customers expect. At the same time, they want to schedule the delivery tasks to minimize the total time of a courier's one-day delivery, considering the total travel time. However, most of scheduling researches on express delivery focus on inter-city transportation,...
This paper analyses the computing method of navigation coordinate system between vehicles and presents the calibration ways of coordinate conversion parameters. The conclusion is used for converging fire by group vehicles, or automatic fire distribution and overriding control over guns in other vehicles by the command and control system. So it can be used for fire command automation of vehicles.
By adopting random forests regression, a prediction model of torpedo initial velocity at launching torpedo is built and variable importance is achieved in this paper. Compared with the measured values, the model has high fitting precision, which shows that random forests regression is an effective way to estimate the Eigen parameter of torpedo interior trajectory.
The rising popularity of smart phones and social networking services (SNS) is changing many aspects of people's collaboration. With the wide use of smart phones, collaborative work based on mobile web becomes loose and flexible. Collaborators have more chances to collaborate with other people anywhere at anytime. But most supporting tools for traditional computer supported cooperative work just support...
In this paper, Ni-Co compositional coatings were electrodeposited by brush-plating and the surface topography images were obtained with the help of scanning electron microscope. The surface topography of Ni-Co coating and the Co element in Ni-Co alloy coating were changed by changing the proportion of Co in plating solution. The fractal dimensions of the surface topography of Ni-Co coating with different...
Many research works have been conducted to study the mechanical properties of bamboo-based panel and the prospect in building structures. The study presented aims to evaluate the flexural behaviors of a new type of lightweight composite slabs consisted of cold-formed thin-walled steel C-section and bamboo-based panel sheathing. According to different interface composite and enhanced ways, three types...
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