Two-Phase Algorithm for Multi-warehouse and Multi-task Based Logistics Delivery

To a scaled logistic company, assigning is an important part of logistic, and further development will make the optimized assigning of multi-warehouse and multi-task possible. This paper provided a two-phase multiwarehouse and multi-task based algorithm which has two phases. In the first phase, it combines sweep algorithm,saving algorithm and virtual task point to present a method. And in the second phase it provides an algorithm for the arrangement of goods loading which is based on the constraints of time-window and attributes of goods and vehicle. It uses the computing results of the first phase to form more detailed delivery scheme based on the constraints of time-window and attributes of vehicle and goods.     

基于LKJ列车运行数据的机务安全运用风险在线预警监控研究

2012年铁道部提出全面实施安全风险管理的工作要求。安全风险管理是实现铁路科学发展、安全发展的战略举措,是提升安全科学化水平的必然要求,是解决铁路安全突出问题的迫切需要,是提升全员、全过程安全控制能力的有效途径。     

浅谈公路工程竣工文件编制

随着我国高速公路突飞猛进的发展趋势,为确保公路建设质量,作为科学技术档案一个分支的公路工程竣工文件也随着提到了新的议事日程.结合太原-旧关、晋城-焦作、北京-大同高速公路竣工文件的编制体会及现状进行探讨.     

被动吸烟对小鼠致突变作用

目的　确定被动吸烟对小鼠的遗传毒性效应。方法　应用实验动物模型 ,小鼠骨髓嗜多染红细胞微核试验和精子畸形试验。结果　被动吸烟组小鼠骨髓嗜多染红细胞微核率和精子畸形率高于阴性对照组 ,差异均有显著性 (P <0 .0 5 ) ,被动吸烟组的精子畸形率与染毒剂量成良好的量效关系 (r=0 .995 0 ,P <0 .0 5 )。结论　提示被动吸烟可在小鼠骨髓嗜多染红细胞微核试验和精子畸形试验中 ,对小鼠产生致突变作用