抗压强度

并进行了BP神经网络预测冻土单轴抗压强度的研究。

And has conducted the BP network forecast frozen soil uniaxial compressive strength research .

原位形成的针状缺钙型HA晶体提高了多孔生物陶瓷的抗压强度。

Needle-like calcium-deficient hydroxyapatite created in-situ reinforces compressive strength of the porous bioceramic .

C高；抗压强度高。蛋白质、面筋含量较高，但其品质较差；

Their contents of protein and gluten are relatively high , but the protein quality is not good .

FRP约束混凝土圆柱体轴心抗压强度研究

Study of Axial Compression for FRP Confined Concrete Circular Columns

同时考虑砖的尺寸和孔型时，P型圆孔多孔砖砌体抗压强度与M型矩形孔多孔砖的相同；

Considering the dimension of brick and hole shape synchronously , the strength of P type circle and M type rectangular perforated brick masonry is equal .

计算两者的误差以及通过尾砂胶结充填体抗压强度的BP神经网络模型的预测数据和工程实际数据的比较。

The error and calculated both by tailings cemented filling body of compressive strength of BP neural network models predict data and actual data comparison .

基于Mohr-Coulomb准则的铸铁抗压强度分析

Compressive strength analysis of cast iron based on the Mohr - Coulomb criterion

结论：添加明胶可缩短自固化CPC的固化时间，提高抗压强度及生物相容性。

Conclusion : This study showed that the addition of gelatin accelerates the setting reaction , improves compressive strength and biocompatibility of CPC .

随着水胶比的增大，砼3d和28d抗压强度显著降低，坍落度明显增大；

With the increase of W / B ratio , 3 d and 28 d compressive strength decrease and the slump increase notably ;

经化学镀后的金刚石抗压强度明显提高，镀Ti和镀Ni的金刚石抗热蚀能力较好。

The compression strength of electroless plating diamond is increased obviously , and the heat etching resistance of Ti plating and the Ni plating diamonds are better than Cu plating diamond .

在NaCl和短纤维含量一定时，加入浓缩过的丝素溶液能使样品的抗弯强度和抗压强度增大；

Add the silk fibroin solution concentrated to the composite with NaCl and silk short fibres , the flexual strength and compressive strength of the composite increased .

通过直接剪切、无侧限抗压强度灵敏度、标准固结试验、孔隙分析X射线衍射及扫描电镜等现代测试手段，研究了改性淤泥的强度特性，探讨固化剂的改性淤泥的机理。

Based on the direct shear , sensitivity of unconfined compressive strength , standard consolidation test , X-ray diffraction ( XRD ) and SEM , the mechanism and strength characteristics of treated sludge are analyzed .

并利用MATLAB软件中stepwise命令实现了以混凝土抗压强度、劈拉强度、劈压比为目标的回归分析，建立了回归方程。

And using MATLAB software , stepwise command realized with concrete compressive strength , splitting tensile strength , splitting pressure ratio as the goal of regression analysis , the regression equation .

结果表明，在此条件下制得的复混肥抗压强度为27.8N，总有效养分为31.6%，pH值6.2，成粒率95.8%。

The result indicates that the pressure resistant strength of the compounded & mixed fertilizer is 27.8 N under this condition , the total effective nutrient 31.6 % , pH value 6.2 , granularity rate 95.8 % .

方法制备了CPC-PLGA复合材料，测定其抗压强度，通过X射线衍射（XRD）分析固化产物的物相组成、扫描电镜（SEM）观察其微观结构，并与单一的CPC材料进行对照。

The composite of calcium phosphate cements / polyglycolic-polylactic acid was prepared . The compressive strength , X-ray diffraction and Scan electron microscope analysis of CPC-PLGA were studied .

结果表明：该方法可使水泥胶砂3d、7d抗压强度分别提高18.3%和11.2%。

The results indicate that the 3d and 7d compressive strengths of cement are improved by 18 . 3 % and 1 1 . 2 % respectively by this method .

其中一项重要的用途就是通过缠绕FRP提供的约束来加固修复钢筋混凝土柱，FRP约束钢筋混凝土柱的抗压强度和延性都得到很大的提高。

One important application of FRP composites is as a confining material for concrete . FRP confinement can enhance both the compressive strength and the ultimate strain of concrete significantly .

通过X射线衍射、四探针测试仪及电子万能试验机等表征了C/C复合材料的石墨化度、电阻率以及抗压强度。

The graphitization extent of C / C composite was investigated by X-ray diffraction , the resistivity and compressive strength of C / C composites were monitored by the Four-Point Probes and Electronic Universal Testing Machine , respectively .

将各配方的试件做了3d、7d、14d、部分21d的抗压强度测定。

The compressive strength of each specimen is tested after 3 days , 7 days , 14 days , and part of 21 days .

时速350km客运专线高性能混凝土抗压强度研究

Study of High Performance Concrete Compressive Strength of 350km / h Passenger-dedicated Lines

目的：探讨牙体预备设计对IpsEmpress2全瓷冠边缘适合性及抗压强度的影响。

Objective : To evaluate the effect of different convergence angles on the marginal accuracy and on the fracture strength of the IPS Empress 2 all-ceramic crown .

纤维的加入提高了防砂体的早期抗压强度（即固化12~24h时的抗压强度），作业占井周期由原来的关井4d缩短为2d；

The added fibres strengthened the early compressive strength ( the com-pressive strength when curing for 12-24h ) , and operation period reduced from four days of shut in to two days .

本文利用人工神经网络搭建起联系混凝土养护条件与力学性能的主要方面立方体抗压强度之间的桥梁，在此基础上利用MATLAB的曲线拟合功能，建立养护温度强度数学表达式。

In this article we use the ANNs to build links between the concrete conditions of conservation and the cube compressive strength , On this basis , using MATLAB curve-fitting functions , to establish conservation temperature & the mathematical expression of strength .

第四章建立了BP神经网络模型，从两个角度尝试建立了混凝土细观与宏观之间的联系：强度预测模型从细观结构出发，通过混凝土孔隙平均分布半径和4个分孔隙率预测抗压强度；

In chapter four , BP models are established . The relationship between macroscopic and mesoscopic level of concrete is proposed from two sides : the strength predictive model predicts the compression strength of concrete with mean distribution radius and four different porosities ;

岩石三轴抗压强度是表征地层抗钻性质的重要参数之一，是PDC钻头优选的基础和主要依据。

The triaxial compressive strength of rock is one of the most important formation parameters of drillability , and is the principal basis of polycrystalline diamond compact ( PDC ) bits selection .

计算结果显示，槽身可靠度对抗压强度（Rc）更敏感，且在可靠指标较低的槽身危险部位，Rc的敏感性较其他部位小；

The result shows that the trough structural reliability is much more sensitive to compressive strength ( Rc ) than to other parameters and the sensitivity of Rc in the dangerous parts is smaller than that in other parts .

研究了硫磺橡胶混凝土（SRC）的配合比设计方法、制造工艺、抗压强度、耐腐蚀性能、韧性、微观结构等。

Mix designs and specimen preparation with different manufacturing process of sulfur rubber concrete ( SRC ) were investigated . Compressive strength with or without corrosion , toughness and microstructure were studied and discussed .

研究了不同养护温度下粉煤灰基矿物聚合物的抗压强度，以及经过1d高温养护后常温条件下强度的发展特点。

The development of the compressive strength of fly ash based mineral polymer at different curing temperature as well as at normal temperature after curing in high temperature for one day were studied .

考虑了岩体结构面、岩块单轴抗压强度、应力状态的影响，引入了Hoek-Brown岩体经验强度准则，利用极限平衡原理，推导了嵌岩桩桩端阻力的计算公式；

On the basis of Hoek-Brown strength criterion and the limit equilibrium method , a method calculating the tip resistance of socketed piles is put forward .

通过室内抗压强度试验对构成CFG桩桩身材料的粉煤灰掺入量影响桩身强度的配比进行了研究；

Load tests deal with the bearing capacity of cushion course and pile-soil stress ratio , while indoor compression tests deal with influence of blend ratio of fly ash in pile material on pile strength .