关于销售集团投资设置销售分店问题的IP模型

针对一个实际投资实例建立了一个基于 0 -1背包问题的数学模型 ,并利用多个算法加以求解 ,并对结果进行了比较 .该模型具有很高的应用价值和参考价值 .     

基于SOPC的光信号数据采集解调系统设计

设计并实现了一种基于可编程单片式系统(SOPC)开发平台的光信号数据采集解调系统。通过现场可编程门阵列(FPGA)设计完成了光信号数据的采集、解调以及FLASH数据的实时存储和TCP/IP数据的实时传输。通过系统测试,验证了该系统具有工作性能稳定、功能完备、实时性高、适用范围广、可裁剪、可扩展等优点,在激光测试、光电信号处理等领域具有广泛的应用价值。     

Selective and Sensitive Determination of Uranyl Ions in Complex Matrices by Ion Imprinted Polymers‐Based Electrochemical Sensor

We report on the design of a UO₂²⁺‐selective electrode based on the use of UO₂²⁺ imprinted polymer nanoparticles (IP‐NPs), and its application for the differential pulse adsorptive cathodic stripping voltammetry determination of uranyl ions. A carbon paste electrode was modified with the IP‐NPs, and differential pulse adsorptive cathodic stripping voltammetry was applied as the detection technique after open‐circuit sorption of UO₂²⁺ ions. The modified electrode responses to UO₂²⁺ was linear in the 0.1 µg L^?1 to 10 µg L^?1 and in the 0.01 mg L^?1 to 10 mg L^?1. The method detection limit of the sensor was 0.03 µg L^?1.     

基于DE1-SoC的磁性介质显示系统设计与实现

针对常规平面成像技术表现形式单一,容易视觉疲劳等问题,提出一种新型的基于FPGA/ARM异构双核控制的磁性介质显示系统,实现磁性介质的立体动态成像;本系统通过在Altera DE1-SoC的Linux平台上构建Lighttpd轻量级Web服务器和设计开发功能程序、底层驱动程序、自定义IP核和Verilog逻辑译码程序来实现该显示系统的软硬件开发;本系统具有网络设备跨平台控制能力、磁流体精确控制能力以及多种样式的汉字和图案显示能力;大量实验表明该系统能够通过控制磁流体完美的表现出立体书法、绘画图案,且系统运行稳定可靠。     

行波管多信号非线性注波互作用的网络并行计算

 把网络并行计算技术应用于微波管的研究领域，提出了用于计算2.5维行波管多信号非线性注波互作用的基于TCP/IP协议的网络并行计算模型，编写了模拟行波管多信号非线性注波互作用过程的网络并行计算程序，其可在工作站和微机组成的计算机网络环境中实现并行计算。计算结果表明，该网络并行算法能够有效地减少行波管多信号非线性注波互作用的计算时间，提高工作效率。     

Ion chromatographic separations of phosphorus species: a review

The aim of this paper is to review recent literature regarding the determination of phosphorus species by ion chromatography (IC), and describe the implementation of new developments in sample treatment and ion chromatography methodology for the analysis of these compounds. Ion-exchange methods using both carbonate/hydrogencarbonate and hydroxide selective columns in combination with self-regenerating membrane and solid-phase-based suppressors enable determination of phosphate down to ppb levels. New technology, particularly on-line electrolytic hydroxide generators and electrolytic self-regenerating suppressor devices, has allowed the use of elution gradients in both carbonate/hydrogencarbonate and hydroxide selective systems, improving sensitivity and reducing total analysis time for samples containing phosphate together with other inorganic anions. In addition to a review of these developments, optimization and application of chromatographic methods using reversed stationary phases and cationic and/or zwitterionic surfactants is also discussed.The objective of most of the IC methods developed for phosphorus species is the determination of phosphate and total phosphorus. Therefore, sample treatment and separation conditions specifically developed for this purpose are also described. In addition, application of IC to the analysis of other inorganic (reduced and condensed) and organic (phytates, alkyl phosphate, and phosphonates) phosphorus species is discussed along with methodology and relevant applications in water analysis and other miscellaneous fields.     

Assessment of the extended Koopmans' theorem for the chemical reactivity: Accurate computations of chemical potentials,chemical hardnesses,and electrophilicity indices

The extended Koopmans' theorem (EKT) provides a straightforward way to compute ionization potentials and electron affinities from any level of theory. Although it is widely applied to ionization potentials, the EKT approach has not been applied to evaluation of the chemical reactivity. We present the first benchmarking study to investigate the performance of the EKT methods for predictions of chemical potentials (μ) (hence electronegativities), chemical hardnesses (η), and electrophilicity indices (ω). We assess the performance of the EKT approaches for post‐Hartree–Fock methods, such as Møller–Plesset perturbation theory, the coupled‐electron pair theory, and their orbital‐optimized counterparts for the evaluation of the chemical reactivity. Especially, results of the orbital‐optimized coupled‐electron pair theory method (with the aug‐cc‐pVQZ basis set) for predictions of the chemical reactivity are very promising; the corresponding mean absolute errors are 0.16, 0.28, and 0.09 eV for μ, η, and ω, respectively. © 2015 Wiley Periodicals, Inc.     

Design,Synthesis, and Insecticidal Activities of Novel Pyranoside Derivatives Targeting at Potential Second Calcium Channel IP3 Receptor

In order to search for potent and environmental friendly insecticides with new modes of action, a series of pyranoside derivatives mimicking D‐myo‐inositol 1,4,5‐trisphosphate (IP₃) were designed and synthesized according to the bioisosteric approach. The biological assay indicated that most of the new compounds showed moderate to good insecticidal activities against oriental armyworm (Mythimna separata) and diamondback moth (Plutella xylostella). Especially, compound 5g displayed 80% larvicidal activity against oriental armyworm at 50 mg/L. Meanwhile, 5a showed 100% and 70% larvicidal activities against diamondback moth at 50 and 25 mg/L, respectively. To further explore the mode of action, calcium imaging technique was applied to study the effects of 5a , 5g , and 5i on the intracellular calcium ion concentration ([Ca²⁺]_i) in central neurons isolated from Spodoptera exigua. The results indicated that the tested compounds released stored calcium ions from endoplasmic reticulum.     

KT5C 托卡马克分布式高速数据采集系统

介绍了小型磁约束环装置KT5C 上利用校园高速局域网络, 低成本实现的分布式高速数据采集系统。当在不同位置的三个用户同时发送采集请求时, 该系统能在10 秒左右完成每个用户5 个通道的采样频率为5MHz采样长度为512kB 的数据采集。实现了远程多用户同时操作, 提高了大量实验数据的采集效率。