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And rough set theory is applied to reduce and unitize the experiential knowledge to find out the important attributes affecting the policy decision and extract the expert design knowledge from the simulation and experimental results.

2知识是实现智能化的核心,为了获取有关产品设计分析、性能评价的经验性知识,结合虚拟正交试验与物理试验等方法,对甘蔗收获机械性能进行分析与测试。

Consolidation test is a important link of obtaining mechanical properties index of soil and coefficient of compressibility gained through the test is a key data to evaluating the compressibility of soil. Consisting of solid phase and liquid phase of the salty soil is different from the non-salty one. Eutectic salt in soil may exist as liquid phase, solid phase or both of them and these phases can interconvert because it is affected by temperature, Na_2SO_4 content, water content. Especially when temperature drops, Na_2SO_4 will crystallize and expand, namely salt expansion of soil. These particularities make soil sample put in environmental cabinet when consolidation test is going on. So soil sample can be compressed by temperature controlling system under a set temperature.From experiment, the formulae counting coefficient of compressibility of salty soil have been given.

土的固结试验,是取得土的力学性质指标的一个重要环节,因为土的固结试验所取得的压缩系数,对评价土的压缩性是一个关键数据,但由于盐渍土的固相、液相组成和非盐渍土不同,土中易溶盐受温度、含盐量、含水量的影响可以以液相、固相、液相和固相混合形式存在,且它们之间的存在形式可以相互转换,尤其是当温度下降时,硫酸钠便结晶产生体积膨胀,即盐胀,这些特殊性就使得在进行硫酸盐渍土的固结实验时,须将土样放置在环境箱中,通过温度控制系统使土样在设定的温度下受压产生变形。

This practice also covers the preparation of test specimens, and the evaluation of test results.

本标准还包括试验样品的制备及试验结果的评价。

Combustion-tube test is an important test for the assessment of air injection, and the objective of this test was to research the overall burning characteristics of crude oil at the reservoir pressure and temperature.

燃烧管试验是注空气评价过程中的重要试验,其目的是研究注空气过程中原油在地层条件下的燃烧情况。

The paper studied the scavenging active oxygen radicals of brown pigment from chestnut shell. The results showed that the brown pigment had scavenging effects on hydroxyl radical, superoxide anion radical and aliphatic radicals on lipid-peroxidation. In the range of test concentration, the maximum scavenging or inhibition rate of the brown pigment to hydroxyl radical generated by Fenton reaction, superoxide anion radical generated by illuminating riboflavin system and linoleic acid auto-oxidation was 83.0%, 82.1% and 88.5% respectively.

从清除羟基自由基和超氧阴离子自由基、抗脂质过氧化以及还原能力等方面对板栗壳棕色素的抗活性氧自由基进行了试验研究和评价,结果表明:板栗壳棕色素对Fenton反应产生的羟基自由基和光照核黄素产生的超氧阴离子自由基均具有较强清除作用,对脂质过氧化过程中产生的脂自由基和脂过氧化自由基有明显的抑制作用,且在试验浓度范围内,其最大清除率或抑制率分别可达到83.0%、82.1%和88.5%。

The shaking table model tests of dam section of sand-draining section, power section, water retaining section and overflow section were described in the 4 chapter.The influences of hydrostatic pressure and rolled bedding fault were considered for the tests.

采用仿真混凝土,对金安桥碾压混凝土重力坝的排砂坝段、发电引水坝段、挡水坝段和溢流坝段进行动力模型破坏试验,试验中考虑了静水压力和碾压层的影响,对该坝的动力破坏位置和抗震性能进行了评价。

Based on the results of exploration and in-site test of typical waste dump in southwest mountainous area,the analysis theory and method of waste dump rainfall infiltration are discussed beginning at analysing coal waste's mechanics characteristic and seepage theoty. Fllowed estimating method of waste dump stability is discussed influenced by rainfall. At last a typical engineering example of coal waste dump landslide influenced by rainfall is researched, acquiring research fruit hereinafter.①Particular exploration of typical waste dump in chongqing area and analysis estimate to its area engineering geology are done. Granule gradation、water content、nature density、dry densit etc parameter of waste granular media are tested. The mechanics characteristic of waste are researched by in-site shear experimentation、compressibility experimentation and infiltration experimentation.②The coal waste dumping is different from other consecutive solid material as incompact granule structure. Its shear strength and transforming characteristic also have itself characteristic.

本文针对山区矸石山,结合踏勘和现场试验,从分析矸石散体的力学特性以及渗流理论出发,研究了矸石山降雨入渗的分析理论与方法,在此基础上提出了矸石山体降雨作用下的稳定性评价方法,最后进行了降雨作用下典型矸石山滑坡工程实例研究,取得了以下研究成果:①对重庆山区中梁山、万盛、荣昌、天府、綦江等矿区代表性的矸石山进行详细踏勘,对矸石山的堆放形态及其区域的工程水文地质情况进行调查;针对重庆山区矸石山,测试矸石散体的颗粒级配、含水量、天然密度、干密度等参数、并在此基础上,通过现场剪切、压缩、渗透试验等研究矸石散体的力学特征。

Methods The experimental mice were given 200 g/L sweetpotato anthocyanin with a dose of 36 mL/kg, three times a day, for 14 days. Body weight and death rate were recorded. The mutagenicity of sparfloxacin on CHL cell in the presence and absence of S9mix was evaluated.

采用最大给药量试验,小鼠每天3次、每次36 mL/kg灌胃给予200 g/L的青紫薯色素水溶液14 d,观察其体质量变化和死亡情况;以仓鼠肺成纤维细胞行染色体畸变试验,对青紫薯色素进行毒理学评价。

In order to improve the life of cement concrete bridge deck pavement,compound beam test was used to research the fatigue characteristics of hot mixed asphalt courses on bridge deck,finite element analysis method was employed to make the mechanical response of compound beam accord with that of actual bridge deck under the same load,the fatigue test was done for compound beams with different pavement structures.

为了提高水泥混凝土桥面沥青混凝土铺装的使用寿命,以复合梁试验评价不同的桥面沥青铺装结构的疲劳性能,采用有限元法分析荷载作用下复合梁试件具有与实际梁体一致的应力响应,并采用复合梁疲劳试验测试不同桥面沥青铺装层组合的疲劳寿命。

Dynamic frequency sweep and stable flow experiments were conducted on four asphalt mastics consisting of fly ash,limestone,hydrated lime and cement fillers.

通过对粉煤灰、矿粉、消石灰、水泥4种矿物填料组成的沥青胶浆进行动态频率扫描试验和稳态流动试验,对4种不同矿物填料、不同粉胶比对沥青高温性能的影响进行了评价。

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Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来,英国,在此地早期居住的是凯尔特人,已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。

The almost sure central limit theorem is a pop topic of the probability research in recent years,because it has many actual applications in the random analogue.

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