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为研究活动屋盖运动时的动力作用对固定屋盖的影响，探究不同工况、屋盖运动特性以及活动屋盖与固定屋盖间接触的光滑度对固定屋盖的影响，分别在瞬态分析和静力分析中采用移动质量法对活动屋盖的闭合进行了全过程模拟，对比了两种分析方法的计算结果，并对瞬态分析模型中的四种参数（活动屋盖的质量M、台车的启动加速度a和最大运行速度v以及台车-轨道间的摩擦系数μ）进行了分析。结果表明：活动屋盖对固定屋盖的动力作用使固定屋盖跨中的竖向位移至少增加2.0 mm；活动屋盖启动瞬间会引起固定屋盖产生一定的晃动，且该晃动的幅值会随着参数M、a和μ的增加而增加；上述四种参数会明显增强固定屋盖的振动响应，其中参数v对振动响应的影响最为显著，其次是参数M。因此在运行过程中，台车启动后应一次运动到位、避免多次启动，且启动加速度和最大运行速度不宜过大；应避免在积雪情况下开启和闭合活动屋盖，须保持台车与轨道间的光滑度。

为探究轨道梁的初始几何缺陷是否会影响轨道梁结构的安全性和是否会加剧台车的卡轨风险，在有限元瞬态分析中提出一种活动屋盖闭合全过程模拟的简化方法，并利用该方法探究了活动屋盖闭合过程中轨道梁位移和应力的变化特征，研究了轨道梁的缺陷类型（z向和y向初始几何缺陷）和缺陷大小对活动屋盖运行的影响。结果表明，在活动屋盖闭合过程中，台车与轨道梁间的y向位移存在一定的差值，该位移差可达3.8 mm以上，且越靠近固定屋盖跨中该位移差越大；不同缺陷类型和缺陷大小下，轨道梁应力比的峰值基本相同，且应力比小于0.54；z向初始几何缺陷基本不影响轨道梁的位移；y向初始几何缺陷会使轨道梁产生一个与缺陷同向的附加位移，且缺陷越大附加位移值越大，当轨道梁的y向初始几何缺陷大小为L/250时，台车的最大横移率是无缺陷模型的4.3倍。

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Copyright of Journal of Railway Science & Engineering is the property of Journal of Railway Science & Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Railway Science & Engineering is the property of Journal of Railway Science & Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Railway Science & Engineering is the property of Journal of Railway Science & Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Railway Science & Engineering is the property of Journal of Railway Science & Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Railway Science & Engineering is the property of Journal of Railway Science & Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Test & Measurement Technology is the property of Publishing Center of North University of China and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Railway Science & Engineering is the property of Journal of Railway Science & Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Railway Science & Engineering is the property of Journal of Railway Science & Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Railway Science & Engineering is the property of Journal of Railway Science & Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Railway Science & Engineering is the property of Journal of Railway Science & Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Zhejiang University (Science Edition) is the property of Journal of Zhejiang University (Science Edition) Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

According to the operating characteristics of nonlinear feedback shift registers (NFSRs), this paper proposed a reconfigurable NFSR computing model. The model consisted of 3 modules, variables extraction, reconfigurable feedback function calculation and dynamic data updating. Aiming at NFSRs in public stream ciphers algorithms, the paper proposed reconfigurable design methods of corresponding modules. The experiments show that the design in this paper can configure NFSRs in public stream cipher algorithms flexibly and efficiently. In 0. 18 üm CMOS process, the equivalent logic gate count is 19 000, and the maximum working frequency can reach 417 MHz when the width is 128 bit. And this paper provides a safe and efficient strategy for NFSRs in stream cipher algorithms. [ABSTRACT FROM AUTHOR]

研究了丙硫氧嘧啶对L—半胱氨酸包覆的ZnS纳米粒子荧光强度的影响,发现在pH=6.5的KH2PO4-NaOH缓冲溶液中,丙硫氧嘧啶对功能化ZnS纳米粒子有荧光猝灭作用,据此建立了以功能化的ZnS纳米粒子为荧光探针测定药物制剂中丙硫氧嘧啶含量的荧光分析法.丙硫氧嘧啶浓度在4.00×10-6~4.00×10-4 mol • L-1范围内与体系的荧光强度线性关系良好,相关系数r=0.998 7,检出限(S/N=3)为1.70×10-6 mol • L-1,对浓度为4.00× 10-5 mol • L-1丙硫氧嘧啶标准溶液平行测定11次的相对标准偏差为1.49%.该法用于丙硫氧嘧啶片中丙硫氧嘧啶含量测定,结果令人满意.

利用AZ4620光胶制备通道横截面为圆弧形的阳模，采用玻璃与PDMS材料的永久性封合技术，研制了一种玻璃-PDMS复合芯片微流控蠕动型气动微泵，实现单一微泵对多路液流的驱动.实验将该微泵系统应用于K3 [Fe(CN)4]的化学发光检测，对4×10-5 mol/L K3[Fe(CN)6]测定的重现性为0.9%(RSD，n = 7)，线性范围6× 10-6~6×10-5 mol/L，线性相关系数R2=0.999 0，检出限为8×10-7 mol/L.