广西高技术产业科技创新能力评价研究

文章在分析广西高技术产业发展现状基础上,构建高技术产业科技创新能力评价指标体系,运用熵值法,基于2015—2019年面板数据对广西高技术产业的创新能力进行实证研究.研究表明:广西高技术产业创新能力在西部五省中处于较低水平;广西高技术创新产出实力略低于创新投入实力,创新技术吸收实力仍相对较弱;广西高技术四大行业创新能力存在差异,即电子及通信设备制造产业科技创新投入和产出效果最好,医药制造业和电子通信及装备制造业创新投入高,创新产出评分偏低,医疗仪器设备及仪器仪表制造产业和计算机及办公设备制造产业创新吸收能力很弱.基于以上结论,文章从加大创新资源投入、推动创新平台建设、加强人才队伍建设等方面提出了对策建议.     

Study on the Centralization Strategy of the Blood Allocation Among Different Departments within a Hospital

By far, the researches on how to distribute blood products among different departments in hospital have not been further studied, though the problem of blood shortage and wastage that caused by improper blood allocation is severe, which may endanger patient’s lives and impose considerable costs on hospitals. In order to solve this problem, this paper mainly studies on how to distribute the blood items among different departments within a hospital and investigates the allocation approach with the novel management method by centralizing the inventory of several different departments. By integrating the blood inventory requirements of some departments, the hospital could reduce the rate of blood shortage and wastage effectively, release the pressure of the occupancy of resources and reduce the bullwhip effect of blood products. This paper illustrates the centralization principle in hospital and formulates the mixed integer programming model to work out the optimal allocation network scheme and the optimal inventory setting for every department. And the results of the numerical example demonstrate that this centralization method could considerably reduce blood shortage and wastage in hospital by about 72% and 90% respectively. Furthermore, it could decrease the total cost by about 108,540 RMB a month on blood supply chain management in the hospital and improve the effect of some certain surgeries by transfusing the fresh blood to patients.     

A 12-bit 250-MS/s Charge-Domain Pipelined Analog-to-Digital Converter with Feed-Forward Common-Mode Charge Control

A feed-forward Common-Mode(CM) charge control circuit for a high-speed Charge-Domain(CD)pipelined Analog-to-Digital Converter(ADC) is presented herein.This study aims at solving the problem whereby the precision of CD pipelined ADCs is restricted by the variation in input CM charge,which can compensate for CM charge errors caused by a variation in CM charge input in real time.Based on the feed-forward CM charge control circuit,a 12-bit 250-MS/s CD pipelined ADC is designed and realized using a 1 P6 M 0.18-μm CMOS process.The ADC achieved a Spurious Free Dynamic Range(SFDR) of 78.1 d B and a Signal-to-Noise-and-Distortion Ratio(SNDR) of 64.6 d B for a 20.1-MHz input:a SFDR of 74.9 d B and SNDR of 62.0 d B were achieved for a 239.9-MHz input at full sampling rate.The variation in signal-to-noise ratio was less than 3 d B over a 0–1.2 V input CM voltage range.The power consumption of the prototype ADC is only 85 m W at 1.8 V supply,and it occupies an active die area of 2.24 mm~2.     

高性能膜分离材料、膜过程强化关键技术及装备的研制与应用

针对影响和制约膜分离技术大规模推广应用的关键材料与技术瓶颈,中国科学院过程工程研究所"生化工程介质与设备"创新团队经过多年自主创新,在高性能分离膜材料、膜过程强化关键技术和高效膜分离装备等方面取得了系列科研成果,部分成果在调味品、水处理、中药等行业实现了产业化应用,创造了显著的经济效益和社会效益,为提高我国膜工业研发与应用水平,缩短我国膜分离行业与国外先进水平之间的差距,促进膜分离技术的大规模工业化应用做出了贡献。     

Two Innovative Coalition Formation Models for Dynamic Task Allocation in Disaster Rescues

This paper addresses the problem of multi-objective coalition formation for task allocation. In disaster rescue, due to the dynamics of environments, heterogeneity and complexity of tasks as well as limited available agents, it is hard for the single-objective and single (task)-to-single (agent) task allocation approaches to handle task allocation in such circumstances. To this end, two multi-objective coalition formation for task allocation models are proposed for disaster rescues in this paper. First, through coalition formation, the proposed models enable agents to cooperatively perform complex tasks that cannot be completed by single agent. In addition, through adjusting the weights of multiple task allocation objectives, the proposed models can employ the linear programming to generate more adaptive task allocation plans, which can satisfy different task allocation requirements in disaster rescue. Finally, through employing the multi-stage task allocation mechanism of the dynamic programming, the proposed models can handle the dynamics of tasks and agents in disaster environments. Experimental results indicate that the proposed models have good performance on coalition formation for task allocation in disaster environments, which can generate suitable task allocation plans according to various objectives of task allocation.     

低能N+注入凤仙花的变异检测

以低能N 注入凤仙花(Impatiens balsaminaL)种子后获得了高茎、矮茎2个变异品系.对其进行过氧化物同工酶(POD)检测的结果表明,2个变异品系叶片的POD分子大小、表达强度和条带数目与对照相比都发生了一定变化.随机扩增多态性DNA(random amplified polymorphic DNA,RAPD)分析结果也表明变异品系DNA链的脱氧核苷酸序列发生了变异,从25个随机引物中筛选出了9个具有多态性.实验证明适当剂量的低能N 注入能够在基因水平引起凤仙花的变异,为花卉产业的发展提供了一种遗传育种手段.     

基于DSPWVD-TFPF的通信信号噪声消除算法研究

针对通信系统低信噪比情况下,通信质量下降,传统的时频峰值滤波算法(time frequency peak filter,TFPF)在低信噪比下会出现时频聚集性下降的情况,利用联合定向平滑Wigner-Ville分布实现瞬时频率估计.这种新的分布基于定向平滑Wigner-Ville分布(directionally smoothed pseudo-Wigner-Ville distributions,DSPWVD)和一系列不同方向上的DSPWVD逐点自适应权重.仿真实验说明,在低信噪比情况下,DSPWVD-TFPF算法相比传统的TFPF,能够更好的提高时频聚集性,降低误码率(Bit Error Ratio,BER).     

基于电弧传感的管道焊接高低跟踪技术

摘要： 针对管道焊接过程中焊接规范变化的特点,建立了不同区位焊接电流与焊枪高度的数学模型,提出了可变增益的PID(Proportion Integration Differentiation)多模型控制算法,设计了基于模糊切换规则的多模型控制器.试验结果表明,高低跟踪系统的稳态和动态性能良好,可实现不同焊接规范下焊矩高度的实时跟踪控制,保证了焊接过程的稳定性,改善了焊接质量.     

武汉市空气污染物长期变化规律研究

搜集了武汉市2006年~2013年8a间的PM10和气态污染物(包括SO2、NO2、NO、CO和O3)质量浓度监测数据.利用基于Loess的季节趋势分解和窗口滑动平均等时间序列分析方法提取了各种监测指标的长期趋势、季节变化和周变化规律.结果表明,武汉市PM10历经了6a的缓慢下降后于2012年后开始急剧上升,SO2出现明显的下降趋势,其他污染物在2013年之前呈现出小幅上升或基本稳定的趋势,2013年有明显上升;季节规律方面,PM10、SO2、NOX和CO都表现出冬季高夏季低的变化特征,O3则呈现相反的变化特征,另外每年4月PM10会出现一个小高峰现象;PM10表现出明显的周变化规律,呈现出以周三为谷值周六为峰值的周期性变化,而其他气态污染物基本没有明显的周变化规律.