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FED

FED的相关文献在1996年到2022年内共计241篇,主要集中在无线电电子学、电信技术、财政、金融、一般工业技术 等领域,其中期刊论文190篇、会议论文6篇、专利文献45篇;相关期刊110种,包括中国外汇、显示器件技术、光电技术等; 相关会议5种,包括第八届真空技术应用学术年会、第二届中国西安纳米科技研讨会、华东三省一市第三届真空学术交流会等;FED的相关文献由305位作者贡献,包括郭太良、林志贤、张永爱等。

FED—发文量

期刊论文>

论文:190 占比:78.84%

会议论文>

论文:6 占比:2.49%

专利文献>

论文:45 占比:18.67%

总计:241篇

FED—发文趋势图

FED

-研究学者

  • 郭太良
  • 林志贤
  • 张永爱
  • 徐胜
  • 姚剑敏
  • 叶芸
  • 李驰
  • 胡利勤
  • 季旭东
  • 李岚
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 李梅杰; 崔辉; 纪荷怡
    • 摘要: 为探究火灾烟气累积伤害对疏散人员的影响,本文在传统安全疏散判据的基础上,引入火灾烟气毒性累积伤害模型定量分析人员伤害。通过对高校宿舍进行全尺寸数值模拟,对火灾发展过程和人员疏散过程进行时空耦合,考虑能见度对疏散人员速度的影响,利用FED模型定量分析人员受到的火灾烟气累积毒性伤害,判断人员是否成功安全疏散。结果表明:在火灾疏散数值模拟时,火灾烟气对疏散的影响不可忽略,考虑能见度影响时,人员需要的安全疏散时间更长,烟气毒性累积伤害效应也相应增加;在能见度不良但人员熟悉的火灾环境中,其他安全疏散判据均未达到伤害阈值时,火灾毒性烟气的累积伤害效应不会对人员造成明显伤害。
    • 梁柱杰
    • 摘要: 本文探讨了主流平面显示技术的分类、工作原理、光谱分布,研究分析了主流平面显示技术的使用.
    • 蔡喜洋
    • 摘要: 本文基于Fed Model和G-K Model考察了中国和美国股票与债券收益率的动态关系。结论认为股票收益率与债券市场收益率并不存在简单的线性均衡关系,背后起决定性作用的是经济周期力量。在经济稳中趋缓,货币稳健中性、金融去杠杆、经济调结构的当下,中国股票与债券收益率或将保持温和震荡格局。
    • 摘要: 美国美联储经济褐皮书:美国就业市场继续紧俏,部分企业利润下降。2018年12月5日,美联储(FED)发布褐皮书,该报告包含美国12个地区FED分行所提出的地区经济情况摘要与全国经济情况摘要。
    • Flora Zhao
    • 摘要: “The International Textile Manufacturers Federation(ITMF)released the results of the 40th annual International Textile Machinery Shipment Statistics(ITMSS).The report covers six segments of textile machinery,viz,spinning,draw-texturing,weaving,large circular knitting,flat knitting and finishing.As per the report,short-staple spindles,long-staple spindles,and open-end rotors respectively clocked in a growth of 21 per cent,46 per cent,and 24 per cent in deliveries from 2016.”The International Textile Manufacturers Federation(ITMF)released the results of the 40th annual International Textile Machinery Shipment Statistics(ITMSS).The report covers six segments of textile machinery,viz,spinning,draw-texturing,weaving,large circular knitting,flat knitting and finishing.
    • 陈亚锋
    • 摘要: An effectiveness evaluation method for smoke control system based on the cumulative effects of fire smoke toxicity was given.The FED (Fractional Effective Dose) was used as evaluation index to analyze the effect of smoke toxicity on human,and the cumulative effects of fire smoke toxicity was used to assess the smoke exhaust mode.The different smoke control modes in an office building were simulated with the FDS-Evac as an example.Results showed that,from the point of the cumulative effects of personnel injured,the method is able to compare the smoke control effectiveness of different modes by quantitative estimation.This method provides a practical way for smoke control and optimal design in the synergistic effect of multi-technology.%提出一种基于火灾中有毒烟气对人员伤害累积效应的建筑排烟系统效能评估方法,采用有效剂量分数FED作为排烟效能评价指标,分析有毒烟气对人体伤害的效应,其累积结果作为定量评估排烟方式优劣的依据.结合建筑实例,采用FDS+ Evac对某办公建筑内几种不同烟气控制方式的排烟效能进行分析比较.结果表明,该评估方法从人员受伤害的累积效应角度,以定量的方式比较排烟系统的排烟效能,为建立多技术协同作用下的火灾烟气控制效能评估模型与优化设计方案提供了参考.
    • 吴含前; 李程超; 谢珏
    • 摘要: Aiming at the problem that local precision and edge details are difficult to preserve in the existing process of image registration, an improved image feature extraction algorithm AKAZE-ILDB(accelerated KAZE-improved local difference binary) is proposed based on the A-KAZE algorithm.First, this algorithm uses nonlinear diffusion filtering equation to construct the image pyramid.The numerical solution is obtained by the fast explicit diffusion(FED) method.The coordinates of the image feature points with subpixel precision are obtained.Then, the invariant image feature vectors are constructed by the improved LDB descriptor.The eigenvectors are matched by KNN(K-nearest neighbor) with Hamming distance.Finally, the spatial mapping parameter matrix is computed based on the affine transformation model to realize image registration.The experimental results show that in terms of registration efficiency, the AKAZE-ILDB algorithm reduces average registration time by 300 ms compared with the original A-KAZE algorithm in the condition of maintaining the same matching accuracy.Meanwhile, the matching accuracy of the same image feature is also improved by 3.7% higher than the A-KAZE algorithm and 29% higher than the traditional feature extraction algorithm SURF(speed up robust feature).%针对现有图像配准过程中难以保持图像的局部精度和边缘细节的问题,在A-KAZE算法的基础上提出了一种改进的图像特征提取算法AKAZE-ILDB.该算法首先利用非线性扩散滤波方程构造图像金字塔,采用快速显示扩散(FED)求得数值解,得到具有亚像素精度的图像特征点坐标;然后利用改进的LDB(ILDB)描述子构造具有尺度和旋转不变性的图像特征向量,对特征向量采用汉明距离进行KNN匹配;最后基于仿射变换模型计算空间映射参数矩阵来实现图像配准.实验结果表明:在保持相同图像特征匹配正确率的情况下, AKAZE-ILDB算法比A-KAZE算法平均配准时间缩短了300 ms;在配准精度方面,比A-KAZE算法提高了3.7%,比传统特征提取算法SURF匹配正确率提高了29%.
    • 徐陈帅; 杨延宁; 李小敏; 马玉昆; 张雄
    • 摘要: 为了开发低压驱动的FED(Field Emission Display),促进场发射显示器在便携电子设备方面的应用.阐述了FED内部电子发射机制以及显示原理以及FED驱动电路电源的特点.讨论了开关型的升压芯片LM2577与TPS55340在功耗、发热、稳压等方面的特点,分别采用两种芯片设计了升压电路并进行分析比较.采用开关型升压电路TPS55340电路对锂电池进行升压达到了FED显示器的驱动电压,用线性稳压器LM1117实现了控制芯片的电源驱动,实现了FED便携式设备上的运用.实验表明该驱动电路具有低功耗、发热低、纹波小的优点,为便携设备FED屏幕电源的设计提供了新的思路.
    • Shuo Yang; Weisheng Wang; Chun Liu; Yuehui Huang; Chi Li; Jing Wang
    • 摘要: It is significant to research the voltage stability of the wind power centralized system (WPCS) for the effective development of the large scale clustering wind energy resources. A steady state voltage stability analysis of the WPCS by employing the PV curve and model analysis is proposed to reveal the voltage stability influence from different aspects. The PV curve is utilized to trace and indicate the voltage collapse point of the WPCS when the small disturbance of wind power is increased gradually. Then the steady state voltage instability modes of the WPCS are analyzed by calculating the bus participation factors of the minimum eigenvalue model at the collapse point. The simulation results of an actual WPCS in North China show that the static state voltage instability mode of the WPCS is closely related to the operating features and control strategies of different reactive power sources. In addition, the implementation of the doubly-fed induction generator wind turbine generator voltage control is beneficial to improve the WPCS voltage stability.
    • Xiuxia Zhang; Shuyi Wei; Qianyu Ji
    • 摘要: The mixture of Nano-graphite and organic vehicles doped to Nano-diamond paste. The suitable paste proportion was found. Nano-diamond film (NDF) was prepared by sol-gel coating method on ITO glass at 3000/min. The field emission characteristics of luminance-current, luminance-voltage and luminance-power of Nano-diamond film were analyzed and tested. Comparing these tested curves, the luminance was well proportional to current was got. Theoretic, the inner resistance of NDF field emission display (FED) consumes electric energy and real voltage change between the cathode and the anode of NDF-FED was very small after electrons emit. So the characteristic of NDF-FED was preferable to describe by luminance-current linear relationship, which was advantageous to device tested and designed.
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