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Because of appearing empty aggregates in the time zone (the time zone do not include the information), we only establish the indeterminate grey differential equation according to the approximate condition of the differential equation.

利用灰色微分方程中的最小二乘估计参数:进而得到灰色神经网络初始的权值及阈值,这样使初始的权值和阈值更接近准确值,克服了以往BP网络中初始权值的随机性和不确定性,减少了网络的训练次数,提高了网络收敛速度和输出的精度,为避免网络训练陷入局部极小值也起到了重要的作用。

In this research,the indexes relating to the quality of the fried oil,including the content of the ploymers,acid value,iodine value,saponification value,peroxide value,the content of the diglyceride,oxidation stability,viscosity,were detected.The results showed that with the frying time prolonging,the content of the polymers and viscosity increased greatly,iodine value and saponification value decreased,peroxide value and acid value increased,and the content of unsaturated fatty acid reduced,a little of diglyceride produced.

在食用油煎炸过程中,对油脂品质相关的指标(包括酸值、碘值、皂化值、过氧化值、脂肪酸组成、氧化稳定性、黏度、聚合物的含量以及甘一酯、甘二酯和甘三酯的含量)进行检测,结果表明,随着煎炸时间的延长,煎炸油中的聚合物含量大大升高,黏度增大,有少量甘二酯生成,不饱和脂肪酸含量下降,碘值、皂化值降低,酸值、过氧化值升高。

The vapour and plasma ignition times of the target are got based on the equation of heat conduction and cascade model. We suppose that the plasma is ignited when 210 generations of new electrons are born in vapour generation time. The influence of temperature on the thermodynamics and optics parameters of material also have been considered in the model. The resulting theory has good agreement with the experiment and overseas report. A blade method to measure the laser spot is given in this paper with validation and error analysis. The plasma threshold of metals in atmosphere and water ambients both are diagnosed with the light deflection and piezoelectric transducer. A Q-switched pulsed Nd:YAG laser operating at infrared (1064nm), visible(532nm) and ultraviolet (355nm) wavelengths has been used. Al、Fe、Cu are used as targets and get a similar results with both method. Theoretical and experimental analyses are applied on the influence of wavelength on the threshold have been done, both of which have shown that the plasma threshold of metals decrease as the laser wavelength increases; The plasma threshold of metals are higher in water than in air and the pressure of the shock wave in water is five times higher than in air.

从热传导方程和雪崩电离机制出发,假设当电子增值2~(10)倍时,考虑了温度对材料热力学和光学参数的影响时,得到了气化和等离子体点燃的时间,利用该模型进行计算得到的结果与国内外报道及自行通过实验测得的阈值基本一致;提出了利用刀刃法测量激光光斑面积的方法,并通过实验进行了验证和误差分析;利用光偏转装置和压电换能器分别对空气和水中金属等离子体点燃阈值进行了实验诊断,激光器均为调Q—YAG激光器(波长1064nm,532nm,355nm,脉宽10ns),靶材分别为Al、Fe和Cu,两种测试方法得到的等离子体点燃阈值基本一致;本文从实验和理论计算两个方面讨论了波长对等离子体点燃阈值的影响,均得到了等离子体点燃阈值随着波长的增加而减小的结论;对空气中和水中不同环境下金属等离子体的点燃阈值进行了比较研究,得到了金属在水中的等离子体点燃阈值比空气中的大,且水中产生的冲击波的压强是空气中的5倍左右的结论。

The problem of Lagrange interpolation of polynomial space in space Rs is studied,and the construction of Lagrange interpolation polynomial in space R1 and space R2 is proposed.

研究空间Rs 中多项式空间中的Lagrange插值问题。给出了R1和R2上Lagrange插值多项式的构造,同时,给出了R2上插值问题的几个例子。另外,给出了矩形网点上的Lagrange插值多项式和三角形网点上的Lagrange插值多项式。讨论了Rs空间中的Lagrange插值多项式及其余项

The results were:1The mean somatotypes in male 2.2\_4.5\_2.4 and female 4.3\_4.2\_1.5 are balanced mesomorph and endomorph-mesomorph,respectively.2Very significant sexual difference is found in adult's of Dong nationality(P.001) while SAD and T are 2.33 and 11.9 respectively.3Compared with the data home and abroad,the somat...

结果表明:1 侗族成人男女的平均体型值分别为 2 2— 4 5— 2 4和 4 3— 4 2— 1 5 ,侗族成人男女分别属均衡的中胚层体型和内胚层—中胚层均衡体型;2 侗族成人男女间SAD值为 2 33,T为 1 1 9,男女间的体型有非常显著性差异(P 0 0 1 );3与国内、外资料相比,侗族男女的内、中因子值和男性外因子值居中,女性外因子值最低

Percentage of dressing, eviscerated carcass decreased significantly as dietaryω6/ω3 was reduced; percentage of abdominal fat, subcutaneous fat and intermuscular fat were higher in birds fed lower ratio diets. Drip loss in both breast and thigh muscle increased significantly in birds fedω6/ω3 ratio from 18 to 2.6. Except b* value in breast muscle decreased as birds fed dietary ratio from 5 to 2.6, the tendency for breast and thigh muscle were almost similar; a* values progressively increased as the diets contained increasingω3 content, changes in b* were also significant but the pattern was almost the reverse for changes in a*. Decreasing the dietaryω6/ω3 clearly increased the contents of ALA, EPA and DPA, but not for DHA.

结果表明:①饲喂10:1的日粮显著增加6周龄AA鸡的体重和日采食量;②随着日粮ω6/ω3比值的降低,屠宰率和净膛率显著下降;低ω6/ω3比值的日粮增加腹脂率、皮下脂肪和肌间脂肪;③日粮ω6/ω3比值从18下降到2.6时,胸、腿肌滴水损失显著下降;除日粮比值从5降到2.6时胸肌b*值下降外,胸、腿肌变化规律相似,a*值和b*值变化趋势相反:a*值下降,b*值上升;④日粮ω6/ω3的降低,ω3 PUFA中ALA、EPA和DPA显著增加;⑤肝脏中ALA含量低于胸肌,而其长链衍生物C20:3、EPA和DHA的含量则是肝脏中含量较高。

Results:① Compared to cystadenomas, the tissual MVD was significantly higher in bordline cystadenomas, but signicantly lower than cystadenocarcinomas.

结果:①良性、交界性及恶性浆液性卵巢肿瘤组织中MVD值呈逐渐增高趋势,MVD值分别为7.8±2.4、17.5±3.3及27.6±7.5,三者之间差异均有显著性;浆液性卵巢癌不同的组织学分级中MVD差异有显著性,高、中及低分化组织中MVD值分别为18.3±3.4、24.2±3.1及32.3±6.4,分化程度愈差,MVD值愈高;浆液性卵巢癌不同的FIGO分期中MVD差异有显著性,Ⅲ-Ⅳ期的MVD值高于Ⅰ-Ⅱ期的MVD值,分别为28.9±4.7及22.0±4.7。

It also discusses the application of CGU. It is evident there are some differences between the regulation and the accounting practice of public corporations. The difference is resulted from the lack of maneuverability for the specific principle. At the same time, the intention of profit manipulating of management and unperfected market also contribute to the difference expanding.

从《企业会计制度》颁布实施以来,上市公司在减值会计中进行了大量的实践和处理,本文分别对八项资产减值计提的依据、制度规定和技术要求进行了分析,结合理论要求与上市公司实务操作中的一些做法,并参考国外上市公司的减值会计处理,着重分析了:应收款项坏账准备计提比例的公允性和上市公司利用它调节利润的行为、固定资产减值准备中可收回金额的确定、使用价值的计量以及现金产生单元的应用、在建工程减值损失的计量。

As a application of this theory, we discussed the interpolation problems in which the nodes are ununiform rectanglar grids in real space. We gave the lowest interpolation bases of nodes in rectanglar and sidestep-shaped area. Another application is for finite elements theory. We mainly discussed finite elements of Hermite-Birkhoff type interpolation and gave a new algorithms for a interpolation bases.

作为上述理论的具体应用,我们一方面讨论了插值节点为实空间上的非均匀矩形格点的插值问题,主要给出了矩形区域和阶梯形区域中格点上插值问题的按序最低的插值基的一般公式,另一方面我们研究了多元插值在有限元中的应用,主要是针对Hermite-Birkhoff型插值的有限元给出了计算插值基函数的算法。

The plasma ignition threshold of metal is got through experimental and numerical study. The vapour and plasma ignition times of the target are got based on the equation of heat conduction and cascade model. We suppose that the plasma is ignited when generations of new electrons are born in vapour generation time. The influence of temperature on the thermodynamics and optics parameters of material also have been considered in the model. The resulting theory has good agreement with the experiment and overseas report. A blade method to measure the laser spot is given in this paper with validation and error analysis. The plasma threshold of metals in atmosphere and water ambients both are diagnosed with the light deflection and piezoelectric transducer. A Q-switched pulsed Nd:YAG laser operating at infrared (1064nm), visible(532nm) and ultraviolet (355nm) wavelengths has been used. Al、Fe、Cu are used as targets and get a similar results with both method. Theoretical and experimental analyses are applied on the influence of wavelength on the threshold have been done, both of which have shown that the plasma threshold of metals decrease as the laser wavelength increases; The plasma threshold of metals are higher in water than in air and the pressure of the shock wave in water is five times higher than in air .

从热传导方程和雪崩电离机制出发,假设当电子增值210倍时,考虑了温度对材料热力学和光学参数的影响时,得到了气化和等离子体点燃的时间,利用该模型进行计算得到的结果与国内外报道及自行通过实验测得的阈值基本一致;提出了利用刀刃法测量激光光斑面积的方法,并通过实验进行了验证和误差分析;利用光偏转装置和压电换能器分别对空气和水中金属等离子体点燃阈值进行了实验诊断,激光器均为调Q-YAG激光器(波长1064nm,532nm,355nm,脉宽10ns),靶材分别为Al、Fe和Cu,两种测试方法得到的等离子体点燃阈值基本一致;本文从实验和理论计算两个方面讨论了波长对等离子体点燃阈值的影响,均得到了等离子体点燃阈值随著波长的增加而减小的结论;对空气中和水中不同环境下金属等离子体的点燃阈值进行了比较研究,得到了金属在水中的等离子体点燃阈值比空气中的大,且水中产生的冲击波的压强是空气中的5倍左右的结论。

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