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51.
贺胜军 《广东交通职业技术学院学报》2010,9(3):70-72
项目驱动式教学法是一种注重学生职业能力培养的教学法。文中以基础会计教学过程中的一个项目设计为例,指出了如何运用项目驱动式教学法进行教学,并分析了运用项目驱动式教学法时应注意的几个问题。 相似文献
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为研究经济型轿车传动轴布置的设计方法,以2轴式布置形式的传动轴为倒,初定轴长,利用CATIA软件模拟传动轴实际工况下数模状态,并对各状态的固定节夹角和移动节滑移曲线进行校核,通过对各工况下数模间隙检查,识别风险部位。经校核:左右传动轴移动节滑移距离均满足滑移曲线要求,固定节最大夹角为42.24°(〈45°),移动节最大夹角为13.76°(〈23°),传动轴跳动过程中与周围部件最小间隙均大于10mm,满足设计要求。设计及校核方法已经过多车型的实际验证,效果较好,对传动轴布置有一定指导意义。 相似文献
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In driving simulation, a scenario includes definitions of the road environment, the traffic situation, simulated vehicles’ interactions with the participant’s vehicle and measurements that need to be collected. The scenarios need to be designed in such a way that the research questions to be studied can be answered, which commonly imply exposing the participant for a couple of predefined specific situations that has to be both realistic and repeatable. This article presents an integrated algorithm based on Dynamic Actor Preparation and Automated Action Planning to control autonomous simulated vehicles in the simulation in order to generate predefined situations. This algorithm is thus able to plan driving actions for autonomous vehicles based on specific tasks with relevant contextual information as well as handling longitudinal transportation of simulated vehicles based on the contextual information in an automated manner. The conducted experiment shows that the algorithm is able to guarantee repeatability under autonomous traffic flow. The presented algorithm can benefit not only the driving simulation community, but also relevant areas, such as autonomous vehicle and in-vehicle device design by providing them with an algorithm for target pursue and driving task accomplishment, which can be used to design a human-vehicle cooperation system in the coming era of autonomous driving. 相似文献
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Road pricing may provide a solution to increasing traffic congestion in metropolitan areas. Route, departure time and travel mode choices depend on risk attitudes as commuters perceive the options as having uncertain effects on travel times. We propose that Experimental Economics methods can deliver data that uses real consequences and where the context can be varied by the researcher. The approach relies on the controlled manipulation of contexts, similar to what is done in the Stated Choice approach, but builds in actual consequences, similar to the Revealed Preference approach. This paper investigates some of the trade-offs between the cost of conducting Experimental Economics studies and the behavioral responses elicited. In particular, we compare responses to traditional lottery choice tasks to the route choice tasks in simulated driving environments. We also compare students (a low cost convenient participant pool) to field participants recruited from the driving population. While we see initial differences across our treatment groups, we find that their risk taking behavior converge with minimal repetition. 相似文献
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This paper examines the use of single and dual cycle operations for three types of resources, namely, quay cranes, vehicles, and yard cranes to improve the operating efficiency and reduce the energy consumption in a container terminal. Various cycle strategies are proposed and their corresponding estimation models, describing the stowage distributions of outbound and inbound containers on a ship and the storage sharing level of blocks in the yard, are formulated to estimate the total number of cycles for the resources. Statistical analyses are conducted to evaluate and compare the effect of different cycle strategies on the cycle reductions. From the experiment results, it was found that collaboration between resources with the single cycle operation always outperforms that under the dual cycle operation without collaboration. 相似文献