查询词典 a trace

The main contributions of the second part of this dissertation are focused on the cryptographic properties of logical functions over finite field, with the help of the properties of trace functions, and that of p-polynomials, as well as the permutation theory over finite field: The new definition of Chrestenson linear spectrum is given and the relation between the new Chrestenson linear spectrum and the Chrestenson cyclic spectrum is presented, followed by the inverse formula of logical function over finite field; The distribution for linear structures of the logical functions over finite field is discussed and the complete construction of logical functions taking on all vectors as linear structures is suggested, which leads to the conception of the extended affine functions over finite field, whose cryptographic properties is similar to that of the affine functions over field GF (2) and prime field F〓; The relationship between the degeneration of logical functions and the linear structures, the degeneration of logical functions and the support of Chrestenson spectrum, as well as the relation between the nonlinearity and the linear structures are discussed; Using the relation of the logical functions over finite field and the vector logical functions over its prime field, we reveal the relationship between the perfect nonlinear functions over finite field and the vector generalized Bent functions over its prime field; The existence or not of the perfect nonlinear functions with any variables over any finite fields is offered, and some methods are proposed to construct the perfect nonlinear functions by using the balanced p-polynomials over finite field.

重新定义了有限域上逻辑函数的Chrestenson线性谱，考察了新定义的Chrestenson线性谱和原来的Chrestenson循环谱的关系，并利用一组对偶基给出了有限域上逻辑函数的反演公式；给出了有限域上随机变量联合分布的分解式，并利用随机变量联合分布的分解式对有限域上逻辑函数的密码性质进行了研究；给出了有限域上逻辑函数与相应素域上向量逻辑函数的关系，探讨了它们之间密码性质的联系，如平衡性，相关免疫性，扩散性，线性结构以及非线性度等；讨论了有限域上逻辑函数各类线性结构之间的关系，并给出了任意点都是线性结构的逻辑函数的全部构造，由此引出了有限域上的"泛仿射函数"的概念；考察了有限域上逻辑函数的退化性与线性结构的关系、退化性与Chrestenson谱支集的关系；给出了有限域逻辑函数非线性度的定义，利用有限域上逻辑函数的非线性度与相应素域上向量逻辑函数非线性度的关系，考察了有限域上逻辑函数的非线性度与线性结构的关系；利用有限域上逻辑函数与相应素域上向量逻辑函数的关系，揭示了有限域上的广义Bent函数与相应素域上的广义Bent函数的关系，以及有限域上的完全非线性函数与相应素域上向量广义Bent函数之间的关系；给出了任意有限域上任意n元完全非线性函数存在性与否的完整证明，并利用有限域上平衡的p-多项式的性质给出了有限域上完全非线性函数的一些基本构造方法。

Influence of trace rare earth additives such as Ce, Y and Gd on microstructure and properties of Cu-Ag in situ filamentary composite was studied in this paper.

作者： 张晓辉1，闫琳1，宁远涛2单位： 1。北京有色金属研究总院有研亿金新材料股份有限公司，北京 100088；2。昆明贵金属研究所，云南昆明 650221

Digital fingerprinting, an active area of digital watermarking, is designed to trace pirate.

数字指纹系统是数字水印技术的一个重要分支，是用于盗版追踪的一种技术。

And the condition of directly determine the trace mercury in the fish-pond water of our school with this generation system and the mercury meas urer machine is discussed.

介绍一种用于冷原子吸收光谱分析法测汞的新型的汞蒸气发生器，并探讨了将该发生器与测汞仪配合直接测定水中痕量汞的工作条件。

A trace of the Atlantic blows off the shellfish on the fishmonger's bed of ice.

鱼贩子们冰床上的新产品还带着大西洋的痕迹。

Trace levels of HCl or Cl-1 must be eliminated otherwise a fixed error due to AgCl precipitation will result.

HCl或者Cl离子的痕量级别必须消除否则由于AgCl的沉淀一个固定误差将会产生。

These macros are identical to DT_TRACE[0..3] except the additional f parameter allows you to pass a 32 bit flag field which will be and'd with the trace filter flag and only traced if at least 1 set bit matches.

3以外的额外f参数允许您通过一个32位标志字段，将与跟踪过滤旗号，只有在至少追溯到1套位匹配and'd。

Compared with the graphite, the coefficients of friction of the RL-C/C are lower under the same load of about 0.08-0.12, and the increasing range of the volume losses are still lower than those of the graphite. Compared with the SL pyrocarbon material, the COF and the volume loss of the SL-C/C are about 0.02-0.05 and 0.2 mm^3, lower than those under the same load. The COFs of most RL-C/C and SL-C/C specimens remain stable or decrease slightly with time, while those of the graphite and pyrocarbon specimens increase. The thickness of the integrated friction film of the RL-C/C decreases with load, but the wear surface of the SL-C/C is rough. Tough the wear surface of the graphite is integrated, the serious abrasive wear make the debris move easily and accumulate on the edge of the wear trace to form a restacked morphology. On the wear surface of the pyrocarbon material, some loosed debris, circular worn holes and flake worn out pyrocarbon has been found.

结果表明：PAN炭纤维改善C/C复合材料的摩擦磨损行为；在实验载荷范围内，与高强度石墨材料相比，含RL炭C/C复合材料的摩擦因数降低0.08~0.12；体积磨损量增幅降低；与热解炭试样相比，具有SL炭C/C复合材料的摩擦因数降低0.02~0.05，体积磨损量低0.2立方公厘左右；随着时间的延长，大部分C/C复合材料的摩擦因数基本相对稳定或呈小幅下降，而石墨、热解炭块的摩擦因数均呈不同幅度的上升；具有RL炭的C/C复合材料摩擦表面膜厚度随载荷增加而降低，具有SL炭的C/C复合材料摩擦表面较粗糙；高强石墨能形成较完整致密的摩擦膜，但磨粒磨损严重，磨屑易在摩擦膜边缘形成层状堆积；热解炭块摩擦表面磨屑堆积松散，有较多的孔洞以及热解炭层整体剥落的形貌。

Compared with the graphite, the coefficients of friction of the RL-C/C are lower under the same load of about 0.080.12, and the increasing range of the volume losses are still lower than those of the graphite. Compared with the SL pyrocarbon material, the COF and the volume loss of the SL-C/C are about 0.020.05 and 0.2 mm3, lower than those under the same load. The COFs of most RL-C/C and SL-C/C specimens remain stable or decrease slightly with time, while those of the graphite and pyrocarbon specimens increase. The thickness of the integrated friction film of the RL-C/C decreases with load, but the wear surface of the SL-C/C is rough. Tough the wear surface of the graphite is integrated, the serious abrasive wear make the debris move easily and accumulate on the edge of the wear trace to form a restacked morphology. On the wear surface of the pyrocarbon material, some loosed debris, circular worn holes and flake worn out pyrocarbon has been found.

结果表明：PAN炭纤维改善C/C复合材料的摩擦磨损行为；在实验载荷范围内，与高强度石墨材料相比，含RL炭C/C复合材料的摩擦因数降低0.08~0.12；体积磨损量增幅降低；与热解炭试样相比，具有SL炭C/C复合材料的摩擦因数降低0.02~0.05，体积磨损量低0.2 mm3左右；随着时间的延长，大部分C/C复合材料的摩擦因数基本相对稳定或呈小幅下降，而石墨、热解炭块的摩擦因数均呈不同幅度的上升；具有RL炭的C/C复合材料摩擦表面膜厚度随载荷增加而降低，具有SL炭的C/C复合材料摩擦表面较粗糙；高强石墨能形成较完整致密的摩擦膜，但磨粒磨损严重，磨屑易在摩擦膜边缘形成层状堆积；热解炭块摩擦表面磨屑堆积松散，有较多的孔洞以及热解炭层整体剥落的形貌。

Edit this paragraph response to the application of flame Flame test color reaction for certain trace metals or their compounds, can also be used for fireworks festival.

编辑本段焰色反应的应用焰色反应用于检验某些微量金属或它们的化合物，也可用于节日燃放焰火。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。