1.FPT-Algorithms (Fixed-Parameter-Tractable Algorithms) is considered a popular efficient algorithms which is used to solve several NP-complete problems. Many FPT algorithms work in two stages: Firstly, the instance is transformed into an eqrivalent one that is smaller in size. To be specific, its size is bounded by a function that depends on the parameter only.
FPT-算法(Fixed-Parameter-Tractable Algorithms)被认为是当前比较流行的运用于解决许多NP完全问题的较为有效的算法,许多FPT-算法是通过两个步骤来对问题进行求解:首先,把实例转化为一个较小的等价体,具体来说,其大小由只依赖于参数的一个函数所限制。
2.New Method of Parameter Identification by Using Walsh Matrix
New Method of Parameter Identification by Using Walsh Matrix
3.The existing problems in toughened resin evaluation technology, particularly the disadvantage of the toughened resin identification method by CAI, is pointed out based on the point of view of composite structure design.It is proposed to evaluate the toughness of composites by both damage resistance and damage tolerance.Seven different toughness composites are investigated by impact and quasi-static indentation tests.Based on experimental data analysis, the parameter that is most sensitive to the damage resistance is determined as the damage parameter.The parameter to evaluate the damage resistance and its measuring method are proposed.
从复合材料结构设计的角度,指出了目前在韧性复合材料评定技术中存在的问题,特别是指出了用冲击后压缩强度值作为判别复合材料韧性的缺点,提出了应采用损伤阻抗和损伤容限共同评定复合材料韧性的观点.对7种不同韧性的复合材料进行了冲击与静压痕等试验,在对试验数据分析的基础上,确定了对损伤阻抗最敏感的损伤参数,提出了描述损伤阻抗的物理量和测试方法.
4.The inertial parameter, kinematics parameter, kinetics parameter and EMG can be measured by the system.
该综合测试系统已经可以对运动员的惯性参数、运动学参数、动力学参数及肌电数据进行测量。
5.In the positioning servo-system,which generally is configured by the D.C.pulse width modulator (PWM) velocity governing system and position servo-loop,the parameter perturbance of PWM velocity loop really exist by reason of such as the load behavior;power voltage supply;operating setting value, etc.［1,2］，and it cannot be ignored.By using the identification technique to form the mathematical model of the system,authors have confirmed the facts.Therefore,to design the discrete sliding mode controller (DSMC) of the positioning servo-system,the perturbed parameters value bounds of the PWM velocity loop,which is as the controlled plant of position servo-loop,should be accounted.Consequently,the design principle of DSMC for accounting system with parameter perturbance is proposed by the authors.The proposed method can ensure the stability of system with parameter perturbance and the behavior of non-overshoot,fast precise positioning.In order to reveal the effects of the design method,the comparative research work is done by the authors.Also,it has been tested in an industrial experiment,the results proved it is satisfactory.
由直流脉宽调速系统(PWM)和位置环构成的定位系统中，速度环的参数随负载特性；电网电压；给定工况而摄动是不容忽视的.作者通过系统辨识建模也证实了这一事实［1,2］.因此在设计位置环的离散滑模控制时，必须针对速度环(即位置环的控制对象)的参数摄动范围采用“对象参数摄动离散滑模控制器的设计方法”，以确保系统在参数摄动时的稳定性和快速、无超调、准确定位的优良动态品质.为剖析该设计方法的控制效果，本文作了对比性研究，并将该设计方法用于工业试验中，取得了满意的结果.
6.Using the RS232Cof 9 needles and 25 needles to copy the CNC parameter and the PMC parameter of numerical controlled machine tool into the computer through the super terminal of the computer,keeping the parameter from losing.
利用RS232C 9针、25针串口,通过电脑的超级终端,将数控机床的CNC参数,PMC参数拷贝到电脑,防止数控机床参数的丢失。
7.Results: The image quality parameter of DCE Gd-BOPTA images was much better than that of precontrast images with significant difference (P0.05), But image quality parameter of delayed phase of Gd-BOPTA-enhancement was much better than that of Gd-DTPA images with significant difference (P
Gd-BOPTA动态增强与Gd-DTPA动态增强相比图像质量评分略有提高,但差别无统计学意义(P>0.05),而Gd-BOPTA延迟期扫描图像质量评分明显提高,差别有统计学意义(P
8.This report researched the methods of mixture design, and also analysed Shaping methods and compaction temperature to influence mixture volumetric parameter and investigated the test and calculation method of volumetric parameter to influence mixture design parameter. This report also put forward some suggests for modified asphalt mixture design using the Marshal mixture design method.
对改性沥青混合料的配合比设计方法进行了探讨,分析了成型方法(旋转压实成型和马歇尔击实成型)、压实温度对混合料体积参数的影响,以及体积参数的测试计算方法对配合比设计参数的影响,并对用马歇尔方法进行改性沥青配合比设计提出了建议。
9.The parameter estimation methods for amplitude modulated(AM)mixed phase signals is studied using cyclic-cumulants. The parameter equations of AM mixed phase models are derived in terrms of any order cyclic-cumulants. For AM mixed phase AR, MA and ARMA models, the corresponding parameter estimation methods are presented.
本文利用循环累墅讨论调幅混合相位信号的参数估计方法．首先给出了凋幅信号的基于任意阶循环累量的参数方程．对于调幅混合相位AR，MA和ARMA模型，提出了相应的参数估计方法.
10.In this paper by introducing free experiential parameter we modify the S-shaped reliability model and discuss its uniting principle with other three models:S-shaped model, NHP model and W-NHPP model. The formula of the united model parameter estimation and the method to estimate the model free experiential parameter are also given in the paper.
本文通过引入自由经验参数的方法对基本S-型软件可靠性增长模型进行修正,着重讨论了修正S-型(MS-型)模型和S-型模型、NHPP模型、W-NHPP模型的统一问题,导得了统一模型参数的最小均方误差估值计算公式,并提出了一种估值经验参数的方法。
