系数

The safety factor obtained with the relationship between elastic strain energy and the reduction coefficient is similar to that obtained by other traditional slope steady analyzed method.

摘 要：为分析采用强度折减法确定边坡安全系数过程中边坡弹性应变能随折减系数变化与边坡失稳破坏的内在联系，建立数值模型，记录边坡弹性应变能与折减系数关系曲线；通过对某边坡的分析，绘制弹性应变能与折减系数关系曲线。

The values obtained in thepresent study for the electron energy distribution function,drift velocity,ionizationcoefficient and attachment coefficient,etc.,are calculated and compared with theexperimental results reported in the literature,and the comparison is also carried outwith the values obtained from the two different types of fields.

应用Monte Carlo模拟法研究了氧气放电的电子参数，得到了在均匀电场中的电子能量分布、平均能量、漂移速度、电离系数、附着系数、迁移率及扩散系数随时间、电场强度的变化关系，并与文献上的实验结果进行了比较。

It is found that the overall heat transfer coefficient of elliptic cylinder with k.0 is higher than that of a circular cylinder.At k=6.0,it has the maximum which is about 1.6 times that of a circular cylinder.At the same time,the drag coefficient drops down with the increase of k.For k=2.0,the drag coefficient is about 60％ that of a circular cylinder.

当k.0时，椭圆管的平均对流换热系数高于圆管；当k=6.0时，达到最大值，大约为圆管的1.6倍，同时，其阻力系数随着k的增大而减小；当k=2.0时，阻力系数约为圆管的60％。

Secondly, in the trapezoidal channel which profile is that the base width is 20cm, the depth of channel is 20cm, the slope coefficient 1.0, and U-shaped channel which profile is that the depth of channel is 40cm, the radius of bottom circular arc, the external dip angle α of abutment wall is 8°, the article does a series of experiment researches on many of cylinder measuring flumes, such as circular, pier shaped, elliptic and diamond cylinder flumes, and discusses the variance of discharge coefficient, submergence factor, backwater height, head loss and critical submergence degree for each of cylinder measuring flume. On this basis, the article optimizes the structure shape of the cylinder measuring flume further.

然后，在底宽为20cm、渠深为35cm、边坡系数为1.0的梯形断面渠道和渠深为40cm、底部圆弧半径为15cm、边墙外倾角α=8°的U形渠道上，对圆柱形、桥墩形、椭圆柱形和菱柱形等多种柱形量水槽进行一系列的试验研究，探讨各种形式柱形量水槽的流量系数、淹没系数、壅水高度、水头损失、临界淹没度等变化规律，在此基础上，对柱形量水槽的结构形式作进一步优化分析。

The results showed that the activation ability value of the elite fencing athletes brain ability of infor oration processing was much higher than that of the normal people, which meant the brain could deal with more information and have more methods of information processing. The superior unilateral brain regions of information processing were the left forebrain and right epencephalon, which were the best match of both- side brain. Female athlete moods were more stable than the male athlete;besides, they were more active, having more powerful logic memory, and more rational thoughts. Among the parameter of FFQG, marginal modulus reflected the consumption of information processing which was related with the fencing athlete athletic for m. T his, the low er the modulus w as, the better w as the athletic for m. T he fencing athlete with good marginal modulus was 6z.4%.w ith the nor oral being 3 }.6%.which indicated that the efficiency of Chinese fencing athlete brain ability of information processing was rather high.

结果表明，优秀击剑运动员大脑处理信息的能力与普通人相比，激活能力总值显著较高，提示优秀击剑运动员大脑处理信息的量更大，处理信息的方式更多；击剑运动员大脑处理信息的优势单脑区为左前脑和右后脑，左前右后脑是优秀击剑运动员双侧脑的最佳匹配；男女运动员在大脑左颞区优秀图形的差异显著，提示女运动员比男运动员有更稳定的情绪，更高的内驱力，更强的逻辑记忆和理性思维能力；击剑运动员优势图形中的特征图形为内方型和隧道型，非优势图形中的特征图形为逃逸型和奇异型；脑象图的技术参数中，边缘系数反映大脑处理信息的耗能量，它与击剑运动员的竞技状态呈较高的负相关，即边缘系数越低，运动员在竞技比赛中的发挥越好；击剑运动员边缘系数优秀型占总人数的62.4%，一般型占总人数的37.6%，提示我国优秀击剑运动员大脑处理信息的效率很高。

The results show that the force coefficient, the equivalent inductance and resistance are constant when the moving magnets oscillate in an operating region.

结果表明：推力系数在一定的动子行程内是基本恒定的，在上死点附近，推力系数有减小趋势；等效电感和电阻在一定的工作电流内是基本恒定的；直线电机等效电阻及电感的波动对活塞位移自传感器的输出几乎无影响，推力系数的波动影响活塞位移自传感器输出幅值的大小；若要提高直线压缩机活塞位移自传感器的输出精度，需要对模拟电路参数进行微调，以确保输出不失真，同时需要在活塞上死点附近对自传感器的输出进行修正。

Takingthe contact stress, bend stress stiffness and temperature stress as thecondition, taking the weight of the kiln tyre as optimization aim function, theredia and the width of the tyre are optimized General optimize methods justconsider the affecting of the parameters to aim function, but in fact,structural parameters(such as structure dimension, interval and so on),physics and dynamics (damp factor, conduct factor, friction factor material'selastic module strength limits and so on), which would be changed afterused.

一般的优化方法，仅仅考虑了参数对其目标函数的影响，而实际情况下有些参数是变化的，产品的结构参数、物理和力学参数如阻尼系数、传导系数、磨擦系数、材料的弹性模量和强度极限等的设计值与制造后和使用中的实际值会有差异，这种差异称为设计变量和噪声因素的变差。

In view of the coefficients of CDF9/7 wavelet filter are irrational number, we use the trigonometric function transform to factorize the perfect restruction and the biorthogonal conditions of biorthogonal wavelets filter banks, then optimize the coefficients of the original 9/7 wavelet filter banks, consequently a novel 9/7 wavelet filter banks with binary digit coefficients can be obtained.

2针对CDF9／7小波系数为无理数的缺点，对CDF9／7小波滤波器组的完全重构条件和双正交条件进行三角基函数变换和因式分解，并对求出的小波滤波器系数进行优化设计，得到一组滤波器系数都为二进制分数的9／7双正交小波滤波器组，大大降低了离散小波变换的算法复杂度。

Above all, consider combination of 3 kinds of load and different constant load and alterable load effect to compare an effect, gave out representative ferroconcrete component is in give an environment to fall, the affirmatory principle that the reliability of different operating period analysed methodological; to put forward intended performance structure to design reliability level, namely index of reliability of component part of the construction inside intended performance cannot be under the standard; of active standard on foundation of expression of design of reliability of our country structure introduce wear to fold decrease coefficient, gave out the affirmatory method of this coefficient, assure in design phase through this coefficient and achieve target of reliability of component part of the construction inside intended performance not the standard under active standard.

首先，考虑三种荷载组合以及不同恒荷载和可变荷载效应比影响，给出了代表性钢筋混凝土构件在给定环境下、不同使用期的可靠度分析方法；提出了预期使用期结构设计可靠度水平的确定原则，即预期使用期内结构构件可靠度指标不能低于现行规范的标准；在我国结构可靠度设计表达式基础上引入耐久性折减系数，给出了该系数的确定方法，通过该系数在设计阶段保证和实现预期使用期内结构构件可靠度指标不低于现行规范的标准。

The prevalence of diabetes in men significantly increased from the first quartile to the fourth quartile of BMI and the waist-hip ratio (4.48% to 9.21% in BMI, 3.67% to 13.61% in WHR), while the prevalence in women also significantly increased from the first to fourth quartile (2.45% to 11.76% in BMI, 2.04% to 13.49% in WHR).

依体质量系数和腰臂比(waist-hip ratio)来分为四分位，从第一分位在第四分的男性糖尿病盛行率有明显增加(体质量系数从4.48%至9.21%，腰臂比从3.67%至13.61%)，而女性糖尿病成行率，从第一分位至第四分位也是一样有明显增加(体质量系数从2.45%至11.76%，腰臂比从2.04%至13.49%)。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。