一类整车物流问题优化模型的研究
从整车物流的具体实例出发,首先,根据给定的轿运车和乘用车的规格,以轿运车运能最大化为目标,求得轿运车的最佳配载方案;其次,以多目的地不同订单需求等为约束,以轿运车使用数量最少和成本最低为目标函数,建立整车配载运送优化模型;最后,利用整单和零单的思想和方法,对优化模型求解,得出轿运车的最佳配载运送方案.所提出的求解方法能大大缩小解的搜索空间,提高运算效率,对解 …
Evaluation on Surface Current Observing Network of High Frequency Ground Wave Radars in the Gulf of Thailand
Due to the high cost of ocean observation system, the scientific design of observation network becomes much important. The current network of the high frequency radar system in the …
Assessment Model of State Fragility and Its Application Based on Climate Change
The current main stream researches on state fragility are mostly focusing on the social, political, ecological and economic aspects. However, as one of the most critical issues on …
Qiuling Xie
Promotion Effect of Asian Dust on Phytoplankton Growth and Potential Dissolved Organic Phosphorus Utilization in the South China Sea
Dust deposition is an important nutrient source to the South China Sea (SCS), but few in situ experiments were conducted on phytoplankton response to the deposition. We conducted …
Qiang Chu
Improvement of the Ocean Pollutant Transport Model by Using the Surface Spline Interpolation
The independent point scheme (IPS) is applied to inverting initial condition with the adjoint method for the ocean pollutant transport model in this work. As an improvement, the …
Xiaolong Zong
Adaptive Multi-Dimensional Taylor Network Tracking Control for a Class of Stochastic Nonlinear Systems With Unknown Input Dead-Zone
In this paper, multi-dimensional Taylor network (MTN) tracking control scheme is proposed for a class of stochastic nonlinear systems with unknown input dead-zone. The …
Impact of high-frequency observations on fog forecasting: a case study of OSSE
Fog that refers to the concentration of ice or water droplets in the near surface air is an important short-time meteorological phenomenon. As the measure of visibility of air …
基于改进的JND模型的视频水印算法
针对视频版权的保护,提出了一种基于改进的JND模型的视频水印算法。此算法首先选取二值图像作为图像水印,利用Logistic混沌映射对图像进行加密;然后对载体视频进行关键帧提取,将提取的帧进行4层小波分解,结合分形理论对小波系数进行D树和R树的存储,并根据人类视觉系统(HVS)提出改进的JND模型,进而将处理后的水印信息按照三个方向自适应的嵌入到D树和R树中。 …