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101.
镇沅金精矿选择性固砷焙烧—氰化浸出新工艺研究 总被引:6,自引:0,他引:6
对云南镇沅金矿的难当金精矿进行了选择性固砷焙烧-氰化浸出的试验研究,取得了满意结果。砷固定率大于92%,硫挥发率为78%-84%,金浸出率可达91%-93%。选择性固砷焙烧-氰化浸出新工艺可有效消除砷害,综合利用有价成分硫,特别适宜于含砷高硫,同时含碳等杂质的细粒浸染型难浸金矿石的处理,在我国有较大的发展前景。 相似文献
102.
Response time variability is a new optimization problem with a broad range of applications and a distinctive number of theoretic
flavour. The problem occurs whenever events, jobs, clients or products need to be sequenced so as to minimize the variability
of time for which they wait for the next turn in obtaining the resources necessary for their advance. The problem has numerous
real-life applications. We study its computational complexity, present efficiency, polynomial time algorithms for some cases,
and the NP-hardness proof for a general problem. We propose a position exchange heuristic and apply it to improve the total
response time variability of an initial sequence. The latter is the optimum bottleneck sequence, Webster or Jefferson sequence
of the apportionment, or a random sequence. We report on computational experiments with the heuristic. 相似文献
103.
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105.
In an assembly line of a just-in-time (JIT) production system, workers have the power and the responsibility to stop the line when they fail to complete their operations within their work zones. This paper deals with a sequencing problem for the mixed-model assembly conveyor line in the JIT production system. In some environment, the most important criterion is the line stoppage rather than the variation of production rates. The problem is to find an optimal sequence of units that minimizes the total line stoppage time. Lower and upper bounds of the total line stoppage time are derived and the branch-and-bound method is applied to the problem. A numerical example is given. 相似文献
106.
107.
单片机混合编程的实现 总被引:1,自引:0,他引:1
李珺 《电脑编程技巧与维护》2012,(8):101-102,130
介绍了单片机的发展,当前应用较多的主流单片机,并对单片机的混合编程实现进行分析与讲解。 相似文献
108.
郭宏刚 《电脑编程技巧与维护》2012,(4):108-109
项目教学法对于中高职院校培养学生的实际操作能力十分有效,针对《计算机组装与维护》这门课程,通过项目设置、任务分解、组织完成的形式,激发学生学习的兴趣,提高了学生的实际动手能力,取得较好的教学效果。 相似文献
109.
Automating stages for deformable objects in the production line, in which assembling a wire harness into a predefined position is a complex task owing to the specialized characteristics of the objects. Besides a few automatized systems proposed in the other studies to implement this task under simplified setup conditions, a significant portion of this process remains to be completed manually in industrial environments. To construct an automatic wire harness assembly system, the development of a method that can automatically detect the wire harness profile in a 3D environment and, consequently, guide robot arms to implement assembly tasks is indispensable. Therefore, this study presents an approach that satisfies this requirement, which not only proposes a deep learning-based system to detect the wire profile, but also improves the accuracy of the detected results through a correction method according to the depth values of contiguous areas. The verification of the approach in a robot system that highlights its usefulness and practicality demonstrates the potential of the proposed method to replace people and consequently, reduce labour costs in factory environments. 相似文献
110.
Real-time and reliable measurements of the effluent quality are essential to improve operating efficiency and reduce energy consumption for the wastewater treatment process.Due to the low accuracy and unstable performance of the traditional effluent quality measurements,we propose a selective ensemble extreme learning machine modeling method to enhance the effluent quality predictions.Extreme learning machine algorithm is inserted into a selective ensemble frame as the component model since it runs much faster and provides better generalization performance than other popular learning algorithms.Ensemble extreme learning machine models overcome variations in different trials of simulations for single model.Selective ensemble based on genetic algorithm is used to further exclude some bad components from all the available ensembles in order to reduce the computation complexity and improve the generalization performance.The proposed method is verified with the data from an industrial wastewater treatment plant,located in Shenyang,China.Experimental results show that the proposed method has relatively stronger generalization and higher accuracy than partial least square,neural network partial least square,single extreme learning machine and ensemble extreme learning machine model. 相似文献