多功能新材质屋面板设计施工

通过设计一种具有透明、保温、防水、防腐等多功能,且自重仅为原预应力砼屋面板10%的钢框玻璃钢罩屋面板,解决老厂屋面改造存在的生产与施工难题.     

改进评标办法 推行“合理低价中标”

分析了现行评标办法存在的弊端 ,提出推行“合理低价中标”评标法应做的工作及商务标评审的主要内容     

高速公路水毁成因及防治措施

从高速公路水泥混凝土路面裂缝，挖方地段护面墙开裂、拦水带与路面衔接部位裂缝，急流槽水泥砂浆勾缝脱落等方面分析了高速公路水毁的成因，并提出了切实可行的防治措施，保证了高速公路的正常运营。     

Effect of electrolysis superheat degree on anticorrosion performance of 5 Cu/（10NiO-NiFe2O4） cermet inert anode

5Cu/(10NiO-NiFe2O4) cermet inert anodes were prepared by cold-pressing and sintering process, and the effect of superheat degree of melting K3AlF6-Na3AlF6-AlF3 on their anticorrosion performance was studied under electrolysis conditions. The results show that, the fluctuation of cell becomes small with increasing of superheat degree, which is helpful to inhibit the formation of cathodic encrustation; the concentration of impurities from inert anode in bath goes up to certain degree, but it is far smaller than those in traditional high-temperature bath. Increasing the superheat degree of melting K3AlF6-Na3AlF6-AlF3 has unconspicuous effect on the contents of impurities in cathodic aluminum. The total mass fractions of Fe, Ni and Cu in aluminum are 15.38% and 15.09% respectively under superheat degree of 95 and 195 ℃. From micro-topography of anode used view, increasing the superheat degree can aggravate corrosion of metal Cu in inert anode, and has negative influence on electrical conductivity of electrode to some extent.     

基于图像处理的金相分析系统研究

在图像研究的基础上,以数学形态学算法为关键步骤,研究开发金相图像分析系统,从噪声较为复杂的金相图像中有效地分割出目标图像,较好地处理晶粒粘连以及重叠问题,从而得到较高准确度的晶粒度。实践结果表明,本系统具有一定的准确度,界面友好,易于操作。     

基于Verilog的8051微控制器中断系统的设计与验证

论文设计了8051微控制器的中断系统,该中断系统包括五个中断源,两个中断优先级,能够实现不同中断响应的无缝衔接,并实现了相同优先级别中断控制,优化了8051微控制器中断系统的功能。     

基于老年群体的健身器材交互设计研究

当今社会,人口老龄化已经成为全世界共同的社会问题,中国也在逐步迈入老龄化社会行列,然而现代信息社会正向年轻化发展。两者的矛盾不言而喻,这让老年人与现代社会脱节越来越严重。文章以老年人健身器材为研究对象,在了解老年人特点的基础上,分析老年人交互式产品的设计原则,总结老年人健身器材设计现状,并提出老年人健身器材交互设计的方法,希望对解决当今社会老龄化问题有一定的推动作用。     

基于FPGA的高速数据采集系统的设计与实现

为了解决高速数据采集过程中的数据量大、实时性、传输速率等问题,提出了一种基于FPGA的高速数据采集系统的实现方案.该方案以FPGA作为主控芯片,实现模拟信号通道的可控、A/D转换控制、DDRⅡ SDRAM数据缓存、PCI总线数据的传输四个主要功能,系统采用Verilog HDL语言,通过Quartus Ⅱ6.0软件编程来实现IP核的控制,从而实现多个ADC08B200芯片进行数据采集,通过DDRⅡ SDRAM进行数据缓存,将数据通过PCI总线传输到PC机.系统经过PC机的测试软件,能够很好地完成高速数据采集系统的任务要求.     

Compressive sensing SAR range compression with chirp scaling principle

Compressive sensing(CS) techniques offer a framework for the detection and allocation of sparse signal with a reduced number of measurements.This paper proposes a novel SAR range compression,namely compressive sensing with chirp scaling(CS-CS),achieving the same range resolution as conventional SAR approach,while using fewer range samplings.In order to realize accurate range cell migration correction(RCMC),chirp scaling principle is used to construct reference matrix for compressive sensing recovery.Additionally,error diagrams are designed for measurement of the performance of CS-CS,and some experiments of using real data are performed to deal with the errors caused by three conditions:SNR,sparsity and sampling.     

DCS安装调试规范

介绍DCS系统的安装、调试,阐述系统的接地规范、干扰在过程控制中的影响及预防、系统调试的具体方法和步骤。