摘要：通过色选机对进境小麦麦角超标进行加工处理,以剔除混在进境小麦中的麦角。结果显示:色选机可以剔除大部分麦角,使其含量降至国家标准以内。我们推荐参数(使用布勒-SORTEX B色选机时)为:小麦流量不超过设计产能80%,色选机初选异色剔除粒、疵点剔除粒分别设定为55%、50%,色选机复选异色剔除粒、疵点剔除粒分别设定为50%、45%。

摘要：Motivated by the objective of pursuing revenue, improvement in coverage and reduction in energy cost for wireless communication networks have been of great significance for mobile operators. Therefore, heterogeneous cellular networks(HCNs) and Coordinated Multipoint(Co MP) transmission are considered as promising solutions to enhance the performances of wireless communication systems. This paper analyzed the K-tier HCNs with a dynamic downlink Co MP scheme, in which the flexible clusters of cooperative stations are determined by a connecting threshold θ. Using stochastic geometry, the coverage probability(CP) and energy efficiency(EE) of a K-tier HCN operating under this scheme are derived, based on which the trade-off between CP and EE is discovered and discussed. Simulation results show the validity of our derivations. The proposed schememay significantly reduce energy consumption sacrificing a small amount of CP, and outperforms the fixed scheme as well. The CP-EE trade-off are also revealed, whichsuggests suitable trade-off points between CP and EE that will deliver the maximum economic profitability. Tendencies discovered in this paper may provide the operators with opportunities for further optimization in pursuit of economic profitability.

摘要：介绍其自动追踪式太阳能虫害监测仪的基本功能和工作特点,着重阐述其硬件构成、控制原理、数据的采集传输和读取分析等。应用PLC技术和GPRS技术,结合太阳能光伏技术和微量传感技术对虫害进行监测。上位机为组态软件设为主站,下位机PLC相当于从站,通过DTU进行数据传输或数据链接,将传感器采集的数据转换后储存在PLC相应的数据采集区,上位机可直接通过DTU从数据采集区读取相应的监测数据。经试验测试其应用效果,仪器易于操作、灵敏度高、耗能低,观测界面清晰、可读性强,可监测到试验区常见的各类飞虫,能广泛适用于易爆发虫灾、可忽略网络延迟、无需对监测害虫进行图谱分析的区域。可为农林作物的虫害防治工作提供数据参考,但仍需对传感器精度控制问题作进一步研究。

摘要：首先讨论了超媒体发展趋势,分析了开放需求。

摘要：连续血糖监测是糖尿病预防、诊断及管理过程中的有效手段。然而,现有的电化学连续血糖监测系统仍存在开放式创口植入、易引起炎症、监测时间短等缺点。光学传感为连续血糖监测提供了新方法,本团队设计开发了可见光激发的发光纳米粒子葡萄糖传感器,其高亮度的发光传感特性有助于经皮血糖信号检测。基于比率荧光策略设计的发光纳米粒子可以校准激发光强变化和采样环境变化等带来的信号误差,可见光激发发光特性可以避免紫外光激发采样对机体的伤害,在高频率长时段的信号采集应用中具有明显优势。

摘要：数据融合处理是多雷达组网的核心。以典型防空雷达网为参考对象,采用组件化设计方式,将组网数据融合处理过程划分为不同的组件,设计通用组件库,包括数据有效性检验、误差配准、时空对准、点迹关联、点迹融合、航迹起始、航迹滤波、航迹关联、航迹融合、航迹管理等。每个组件包含不同的处理算法,采用统一的外部接口,通过参数选择不同的处理算法,通过组件装配构成完整的点迹融合与航迹融合处理模板,以适应不同应用场景。仿真结果验证了组件化设计的可行性和适应性。

摘要：以基于变压器星-角连接的串联谐振型三相双有源桥DC-DC变换器为研究对象。首先,对其工作原理进行详细分析,并推导电感电流、功率表达式,以及软开关条件;其次,将变压器副边电路折算至原边,使谐振变换器的电路模型得到大大简化,并以此为基础进行电路参数选择和硬件设计;然后,通过对变压器、电感、开关管的功率损耗进行分析,建立串联谐振型三相DAB变换器的总功率损耗模型;最后,设计500 W的实验样机对理论分析和损耗模型的准确性进行了验证。

摘要：结合微流控通道制备传感器进行溶液检测可规划流体路径、减少样品使用量、避免环境干扰。提出了一种基于互补开口谐振环(Complementary Split Ring Resonators,CSRR)的微波传感器,结合微流控增强检测特性,用于乙醇浓度检测。设计了CSRR边界、金属间隙、金属区域和蛇形线微通道,研究它们对检测灵敏度的影响,通过测得的频移、幅值、相位等多种参数进行表征。通过优化微流控通道设计,将频移表征的灵敏度从0.03 MHz/%提高到0.225 MHz/%,其中蛇形线微通道可以聚集更强的电场进而极大地提高了微波传感器灵敏度。当使用幅值和相位来表征检测灵敏度时,金属间隙区域微流控表现出最高的灵敏度,分别为0.168 dB/%和0.402°/%。本研究为微波溶液浓度检测的微流控设计提供了重要参考。

摘要：为了提高可逆固体氧化物电池(reversible solid oxide cell,rSOC)的并网转换效率,提出一种基于部分功率变换(partial power conversion,PPC)技术的双极性优化方案,对比单极性电路能够提升电池电压支撑范围以及系统效率。建立rSOC的电化学模型并分析PPC变换下的电压功率范围,分析表明在双极性变换下,变换器的轻载工作带与rSOC在双向运行时不对称的功率特性降低了系统效率。为进一步优化系统,根据效率与功率需求优化了rSOC工作运行带,使变换器能够正常工作,并结合双极性变换与LLC的特点,提出一种双极性双向LLC谐振变换器,能够满足4种工作模式,并分析了变换器正反向增益特性,提出非对称工况下的谐振参数设计方案,使正反向均能高效运行。最后完成了系统仿真与模式切换仿真,搭建实验平台,验证了所提储能系统优化方案的高效性与实用性。

摘要：Cooperative communication networks have been studied and analyzed for many years for enhancing system performance,capacity,and reducing interference with the least focus on handover in cooperative communication *** paper focuses on trial field testing system for evaluating the proposed handover scheme called slide handover(HO).An automatic power allocation technique is coupled with slide HO scheme and its performance is also evaluated under cooperative *** proposed scheme has achieved 100%successful HO executions in our field trial *** error rate(BLER)and slide HO are tested and analyzed in this trial system,and it is shown that the capacity of cooperative networks in these trials implementation has improved and maintained the expected quality of *** below1%is noted at different testing locations which occasionally reached to 10%.Real-time video streaming performance is tested at different trial locations,and uniform streaming performance is noted at all different locations including during the HO *** implies the improved HO delay of the proposed slide HO as compared to traditional HO techniques.