多配方混杂生产过程的数据协调控制

针对玻璃纤维浸润剂配制过程的特点,提出应用关系数据库来解决浸润剂配方数据和生产工艺信息的数据协调问题,并给出三维配方数据库的具体实现方法.通过对配方数据库的分时和分组访问方法,实现人工操作/自动操作原料信息的分离传送与控制;采用人工并行操作、自动控制系统串行工作的模式,可满足多配制罐、多配方混杂生产的需求.实验表明,系统具有运行稳定、控制灵活、控制精度及生产效率高等特点.

基于测土配方施肥数据的水稻土养分分析

采用测土配方施肥系统整理和统计水稻土养分有效测试数据,结合第二次全国土壤普查,比较分析水稻土不同分类、种植模式、区域和时间养分变化趋势,旨在了解盈江县水稻土养分变化、及耕地地力保护与提升薄弱环节,促使耕地质量保护与提升的重视程度逐渐提高与加强。

基于RSView SE的生产配方管理方案设计

针对生产车间流水线中配料所存在的繁琐、数据更新不及时等问题,本次设计利用Rockwell技术提出了一种新型的基于RSView SE的配方管理方法,利用ADO数据库访问技术、罗克韦尔FactoryTalk实时数据通信技术及VBA编程环境,对整个系统进行设计并实现。

基于S7-300 PLC和WINCC的连铸机二冷水控制系统分析

连铸二冷水控制对连铸机的生产质量和效率有着重要影响,合理的动态二冷水配水能够有效提高连铸机铸坯的质量,以达到优质高产的目的。现介绍萍钢公司萍乡炼钢厂方坯连铸机在生产过程中二冷水自动配水控制系统,该系统应用西门子S7-300 PLC采集数据和控制输出,应用组态软件WINCC组态二冷水配方数据表,通过PLC与WINCC之间的通讯与数据交换,实现方坯连铸机生产过程中二冷水配水随着钢种、断面和拉速的不同而实时跟踪自动调节,达到了使铸坯均匀冷却的效果。

PROFINET通讯系统在一次法炼胶生产线的应用

主要介绍PROFINET通讯在一次法生产线上的应用及其特点。论述了一次法生产线的控制系统在采用了西门子PROFINET通讯后的先进性和现场应用情况等。

Database-Assisted Dynamic Spectrum Access with QoS Guarantees:A Double-Phase Auction Approach

Since FCC's opening for white space(WS) utilization,database-assisted dynamic spectrum access(DSA) has become the de facto solution for the realization of dynamic spectrum sharing(DSS),due to its simplicity and compatibility with commercial off-the-shelf(COTS) devices.It is envisioned that such technology will strongly support the prosperous wireless multimedia networking(WMN) applications with satisfying QoS guarantees in the future.However,how to counter the time-frequency variant property when exploiting the WS spectrum for the provision of these services to secondary users(SUs) still remains a great challenge.In such context,a dynamic secondary access scheme for database-assisted spectrum sharing networks is proposed in this paper.In the beginning,the spectrum requirements of SUs for diverse services are modeled by considering the minimum required service data-rate and spectrum access duration.Afterwards,the spectrum demand evaluation and bidding policy are formulated based on the service classes of SUs.Furthermore,a doublephase(DP) spectrum allocation scheme,which consists of the initial resource allocation phase and resource allocation adjustment phase,is carefully designed for DSA.Finally,extensive simulations are conducted and the results demonstrate that our scheme can increase the spectrum trading revenue and adapt to varying service requirements.

中国东部沿海季风区土壤全氮格局及其与水热条件关系

采用全国测土配方施肥项目土壤基础养分数据集,研究了年平均温度和年平均降水量对土壤全氮含量的影响。按照年平均温度<5、5～10、10～15、15～20、>20℃以及年平均降水量0～200、200～400、400～600、600～800、800～1000、1000～1200、1200～1400、1400～1 600mm和>1600mm等区间,分别研究了年平均温度和年平均降水量对土壤全氮含量的影响。结果表明:(1)在年平均温度低于10℃的区域内,土壤全氮含量与年平均温度的相关性较好,年平均温度高于20℃的区域内,土壤全氮含量与年平均降水量和年平均温度的相关性都很差;(2)在年平均降水量0～200mm的区域内,土壤全氮含量与年平均降水量有显著的相关性,而与年平均温度的相关性很差;(3)在年平均降水量200～400、400～600、600～800mm的区域内,土壤全氮含量与年平均温度的相关性要好于其与年平均降水量的相关性,尤其在400～800mm年降水量区间内的半湿润地区,土壤全氮含量与年平均温度呈现极显著的相关关系,在年平均降水量大于800mm后,年平均温度和平均降水量对土壤全氮含量的影响并不明显。

Research on Herb Pairs of Classical Formulae of ZHANG ZhongJing Using Big Data Technology

Objective To analyze various herbal combinations in Treatise on Exogenous Febrile Diseases(Shang Han Lun,《伤寒论》)and Synopsis of Prescriptions of the Golden Chamber(Jin Gui Yao Lve,《金匮要略》),seeking to identify fundamental rules dictating the selection of herbal combinations through probability models and big data technology.Methods A total of 252 formulae were collected from Treatise on Exogenous Febrile Diseases(Shang Han Lun,《伤寒论》)and Synopsis of Prescriptions of the Golden Chamber(Jin Gui Yao Lve,《金匮要略》)by ZHANG Zhong-Jing.Formulae were then preprocessed with all herb names standardized.The concepts of candidate herb pair and candidate herb pair probability were proposed to analyze the rules of combinations in classical formulae based on probability statistics.MapReduce parallel computing framework of distributed big data technology was adopted to analyze large data samples combined with inverted index algorithm.Results The results showed that the core herbs were Glycyrrhizae Radix Rhizoma(Gan Cao,甘草),Cinnamomi Ramulus(Gui Zhi,桂枝),Zingiberis Rhizoma Recens(Sheng Jiang,生姜),Jujubae Fructus(Da Zao,大枣),Paeoniae Radix Alba(Bai Shao,白芍),etc.43 high-frequency pairs co-occurring 10 times or above were extracted,and 35 of these combinations were recognized as traditional herb pairs,such as Cinnamomi Ramulus(Gui Zhi,桂枝)-Glycyrrhizae Radix Rhizoma(Gan Cao,甘草),Zingiberis Rhizoma Recens(Sheng Jiang,生姜)-Jujubae Fructus(Da Zao,大枣),and Cinnamomi Ramulus(Gui Zhi,桂枝)-Ginseng Radix Et Rhizoma(Ren Shen,人参).The other 8 pairs of combinations,such as Paeoniae Radix Alba(Bai Shao,白芍)-Zingiberis Rhizoma Recens(Sheng Jiang,生姜),Paeoniae Radix Alba(Bai Shao,白芍)-Jujubae Fructus(Da Zao,大枣),and Zingiberis Rhizoma Recens(Sheng Jiang,生姜)-Ginseng Radix Et Rhizoma(Ren Shen,人参),were not defined traditionally,but in connection with commonly used herbs.Classical formulae took the core herbs as principles,focusing on tonifying deficiency,strengthening the spleen and the stomach,strengthening the healthy Qi,and eliminating pathogenic factors.The compatibility pattern of properties involved was mainly acrid and sweet,which reflected the compatibility laws of benefiting Qi and tonifying Yang,replenishing Qi and nourishing blood,etc.Conclusions The research of classical formulae provides common understanding of some basic rules that have been adopted to tackle common illnesses/diseases using herbal medicine.The results help to reinforce theoretical understanding and development of traditional Chinese medicine(TCM),and revealing the hidden rules of combination in TCM data.Analyzing wider data samples of various herbal combinations through computation and big data technology can further optimize the use of TCM.

龙门式热板焊接专机的研发

详细介绍了基于DMC2162运动控制板卡和PLC可编程控制器构成的热板焊接专机,该焊机主要用于热板上塞孔、圆块及槽型块等不规则平面曲线焊缝的焊接;介绍了DMC2162运动控制板卡与三菱FX-3UC系列PLC的通讯和利用触摸屏的配方功能实现大容量的数据存储。

Novel similarity measures for face representation based on local binary pattern

The successful face recognition based on local binary pattern(LBP)relies on the effective extraction of LBP features and the inferring of similarity between the extracted features.In this paper,we focus on the latter and propose two novel similarity measures for the local matching methods and the holistic matching methods respectively.One is Earth Mover's Distance with Hamming and Lp ground distance(EMD-HammingLp),which is a cross-bin dissimilarity measure for LBP histograms.The other is IMage Hamming Distance(IMHD),which is a dissimilarity measure for the whole LBP images.Experiments on FERET database show that the proposed two similarity measures outperform the state-of-the-art Chi-square similarity measure for extraction of LBP features.

Effects of wind input and wave dissipation formulations on the steady Ekman current solution

The effects of different wind input and wave dissipation formulations on the steady Ekman current solution are described. Two formulations are considered: one from the wave modeling(WAM) program proposed by Hasselmann and Komen and the other provided by Tsagareli and Babanin. The solution adopted for our study was presented by Song for the wave-modifi ed Ekman current model that included the Stokes drift, wind input, and wave dissipation with eddy viscosity increasing linearly with depth. Using the Combi spectrum with tail effects, the solutions are calculated using two formulations for wind input and wave dissipation, and compared. Differences in the results are not negligible. Furthermore, the solution presented by Song and Xu for the eddy viscosity formulated using the K-Profi le Parameterization scheme under wind input and wave dissipation given by Tsagareli and Babanin is compared with that obtained for a depth-dependent eddy viscosity. The solutions are further compared with the available well-known observational data. The result indicates that the Tsagareli and Babanin scheme is more suitable for use in the model when capillary waves are included, and the solution calculated using the K-Profi le Parameterization scheme agrees best with observations.

An Improving Indexing Approach on Time Series Based on Minimum Bounding Rectangle

A fundamental problem in whole sequence matching and subsequence matching is the problem of representation of time series.In the last decade many high level representations of time series have been proposed for data mining which involve a trade-off between accuracy and compactness.In this paper the author proposes a novel time series representation called Grid Minimum Bounding Rectangle(GMBR) and based on Minimum Bounding Rectangle.In this paper,the binary idea is applied into the Minimum Bounding Rectangle.The experiments have been performed on synthetic,as well as real data sequences to evaluate the proposed method.The experiment demonstrates that 69%-92% of irrelevant sequences are pruned using the proposed method.

带钢连续热镀锌镀层厚度控制

带钢连续热镀锌镀层厚度控制过程具有多变量耦合、非线性、时变大滞后等特性,难以建模和自动控制。目前国内生产线多采用手动控制,存在镀层厚度偏差大、调节时间长、锌原料浪费等问题。在分析带钢连续热镀锌生产工艺的基础上,提出了一种工艺设定和智能控制相结合的控制方法。针对控制对象多变量耦合、非线性等问题,制定刀距、刀高工艺设定值表,并在镀层厚度机理模型的基础上建立刀压配方数据库,将多变量系统简化为工作点上单变量线性时滞系统。针对镀层厚度检测纯滞后问题,应用迭代学习控制算法去逼近理想刀压控制量,消除镀层厚度偏差。采用Win AC软PLC开发镀层厚度控制系统,实现了镀层厚度自动控制。应用效果表明,控制系统具有良好的控制性能,缩短了镀层厚度调节时间,提高了镀层厚度精度。