校园文化思想政治教育功能及其实现

校园文化是思想政治教育重要的载体,具有育人导向、渗透和熏陶、约束、规范和传承、融合、创新文化等功能,本文依据时代的特征,从"两课"进网络文化、加强对校园文化活动的思想导向;结合本院社团文化活动的实际,阐述了对校园文化思想政治功能实现问题的看法。     

Stores clustering using a data mining approach for distributing automotive spare-parts to reduce transportation costs

Clustering of retail stores in a distribution network with specific geographical limits plays an important and effective role in distribution and transportation costs reduction. In this paper, the relevant data and information for an established automotive spare-parts distribution and after-sales services company (ISACO) for a 3-year period have been analyzed. With respect to the diversity and lot size of the available information such as stores location, order, goods, transportation vehicles and road and traffic information, three effecting factors with specific weights have been defined for the similarity function: 1. Euclidean distance, 2. Lot size 3. Order concurrency. Based on these three factors, the similarity function has been examined through 5 steps using the Association Rules principles, where the clustering of the stores is performed using k-means algorithm and similar stores are allocated to the clusters. These steps include: 1. Similarity function based on the Euclidean distances, 2. Similarity function based on the order concurrency, 3. Similarity function based on the combination of the order concurrency and lot size, 4. Similarity function based on the combination of these three factors and 5. Improved similarity function. The above mentioned clustering operation for each 5 cases addressed in data mining have been carried out using R software and the improved combinational function has been chosen as the optimal clustering function. Then, trend of each retail store have been analyzed using the improved combinational function and along with determining the priority of the depot center establishment for every cluster, the appropriate distribution policies have been formulated for every cluster. The obtained results of this study indicate a significant cost reduction (32%) in automotive spare-parts distribution and transportation costs.     

Two-stage updating pheromone for invariant ant colony optimization algorithm

Ant colony optimization (ACO) is a metaheuristic approach for combinatorial optimization problems. With the introduction of hypercube framework, invariance property of ACO algorithms draws more attention. In this paper, we propose a novel two-stage updating pheromone for invariant ant colony optimization (TSIACO) algorithm. Compared with standard ACO algorithms, TSIACO algorithm uses solution order other than solution itself as independent variable for quality function. In addition, the pheromone trail is updated with two stages: in one stage, the first r iterative optimal solutions are employed to enhance search capability, and in another stage, only optimal solution is used to accelerate the speed of convergence. And besides, the pheromone value is limited to an interval. We prove that TSIACO not only has the property of linear transformational invariance but also has translational invariance. We also prove that the pheromone trail can limit to the interval (0, 1]. Computational results on the traveling salesman problem show the effectiveness of TSIACO algorithm.     

巧用差分阻抗公式求近端串扰

从串扰的原理及串扰和差分阻抗之间的内在联系出发,通过模型变换和公式推导,给出了近端串扰系数和差分阻抗之间的关系式。再以平衡结构的带状线为例,得到了平衡结构带状线的近端串扰的估算公式。在相同条件下与HyperLynx仿真软件结果进行比较,验证发现估算结果与仿真结果基本符合。     

Tracking of moving interfaces in sedimentation processes using electrical impedance tomography

Sedimentation monitoring is widely used to control and optimize industrial processes. In this paper we propose a novel computational method for sedimentation monitoring using electrical impedance tomography (EIT). EIT measurements consist of electric current and voltage measurements that are made on the surface of the sedimentation tank and therefore they do not interfere with the sedimentation process. The proposed computational method is based on shape estimation and state estimation formulation of the EIT problem. The sedimentation is parameterized by the locations of the phase interfaces and conductivities of the phase layers. Three different evolution models for the state parameters are considered and the state estimates are computed using the extended Kalman filter algorithm. The performance of the method and the models are evaluated using simulated data from a six electrode EIT measurement configuration. From the results a promising performance of the method can be seen.     

Application of a.c. impedance technique to the study of the proton diffusion process in the porous MnO2 electrode

The proton diffusion coefficient in γ-MnO₂ at various stages of discharge of an electrolytic manganese dioxide electrode has been determined taking into consideration the true molar volume and the electrochemically accessible surface area of MnO₂. The unique electrochemical cell which allows the electrode expansion during the discharge to be monitored in situ was reported. The a.c. impedance technique and the transmission line equivalent circuit were used. Electrode ohmic resistance, Faradaic resistance, and double-layer capacitance were also obtained by means of numerical fitting of the impedance data using the transmission line model.     

论梁启超政治功能小说观

梁启超发起“小说界革命”，将小说直接承载政治使命，并提出“小说为文学之最上乘”的口号，客观上消融了一直以来存在于人们脑海的“小说为小道”的观念痼疾。小说也因此成为当时最受欢迎的文学样式。“小说界革命”对小说地位的提升与当时特定的社会环境及梁启超本人的社会地位是密不可分的。     

基于单片机的家用电器远程电话控制系统的实现

通过对“家用电器远程电话控制系统”的介绍,系统阐述一种基于AT89C51单片机的远程控制系统的设计、应用思路,将它推荐给各位同行、学生参考。同时,将芯片MT8870和ISD1400的关键功能以及应用做一些简明扼要的介绍。     

谈C语言中的图形模式

C语言不仅具有高级语言的功能,而且还具有低级语言特点,它可以直接控制显示屏幕等系统硬件。因此,可能利用C语言提供的图形函数,在图形模式下开发各种图形软件。     

异步轧制对二次再结晶取向硅钢磁性能的影响

研究了异步轧制条件下不同厚度的二次再结晶取向硅钢成品的磁性能的变化,找到了硅钢磁性能与成品厚度和异步速比之间的关系.