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The simulation of MATLAB proves the correctness of model. The results of the application show the superiority of adopting Fuzzy- PI- Controller over conventional Pi-Controller in the aspects of reducing excess adjustment, abbreviating adjusting time and having good adaptability.

MATLAB模拟仿真和实测数据表明了该实际控制模型的正确性,应用结果表明在参数变化的情况下,模糊-PI控制在解决系统减少超调、缩短调节时间和良好适应性问题优于常规PI控制,在实际控制中达到良好的控制效果。

Was used as the recurrent parent and 7 varieties of diverse origins (6 are indica lines) were used as donors to obtain BC2F2 bulks by crossing and continued backcrossing. Initial screening for CT under the low temperature of the field conditions resulted in 177 CT BC2F2 introgression lines.

结果表明,虽然供体亲本均为苗期耐冷性弱的品种,但在全部回交后代中均出现耐冷性的超亲分离,表明这些供体亲本均携带对耐冷性有利的&隐蔽基因&,但组合间的耐冷性选择效率存在较大差异。

The results show that the concentration of displacement and stress in surrounding rock intensifies with the increase of excavation steps. The maximum compression and tension stress reach 54 MPa and 3.9 MPa, which are close to the peak strength of surrounding rock. When the tailings are backfilled, the magnitude of floor heaves reduces about by 5 mm, and the maximum compressive stress drops to 32 MPa. Distribution of both stress and displacement fields are improved and the stability of stopes can be ensured during the mining process.

研究结果表明:随着开挖逐步推进,围岩位移不断增大,应力集中现象明显,最大压应力达54 MPa,最大拉应力达3.9 MPa,接近围岩的极限强度;在尾砂回填后,底鼓量下降5 mm,最大压应力降至32 MPa,表明应力场和位移场均得到改善,能确保回采期间采场的稳定。

Wheel/rail noise of the high-speed slab track on concrete bridge and that of the urban elevated supporting block track are predicted respectively. Noise of the slab track, compared with that of the ballasted track, is more severe. The noise of the slab track is about 6.2dBA higher than that of the ballasted track for the receiver nearby the rail, and about 3.5dBA higher than that of ballast track for the receiver

对降低高速铁路桥上板式无碴轨道及城市轨道交通桥上支承块式无碴轨道轮轨噪声的技术措施进行了研究,包括:(1)分别就板式轨道和支承块式轨道结构参数的低噪声设计原则进行了研究;(2)对几种典型的新型轨道用吸声材料的降噪效果进行了分析,结果表明降噪效果显著;(3)就声屏障高度、位置、形状以及声屏障内侧敷设吸声材料对降噪效果的影响进行了分析,结果表明:声屏障越高、越接近轨道,降噪效果越好;声屏障内侧敷设吸声材料,可降低钢轨近旁噪声2.0~3.0dBA,可降低近地面噪声约1.5~2.0dBA

GUS staining shows that GUS gene was expressed in stems, leaves, calyxes, stamens and siliques in transgenic Arabidopsis plants, with higher expression in green tissue such as stems, leaves, siliques, while invisible in roots, petals, and seeds. The data indicate that MPBQ MT gene promoter was likely to be expressed preferentially in green tissues such as stems, leaves, and young siliques.

GUS组织化学染色结果表明,在MPBQ MT启动子驱动下,报告基因GUS在拟南芥的茎、叶、花萼、雄蕊、种荚均有表达,且在茎、叶、种荚中表达量较高,而在根、花瓣和种子中则没有观察到GUS基因的表达,表明MPBQ MT基因可能仅在拟南芥幼嫩茎、叶、种荚等绿色组织中特异性高表达。

The interactions between phenol,m-cresol or catechol with DNA sensor were analyzed, results indicated that the threephenols damaged DNA.The direct oxidation peaks of DNA were decreased linearly withthe phenols concemtrations.R%D_(50) values showed that the m-cresol damnified DNA mosteasily.

研究了苯酚、间甲酚和邻苯二酚与DNA的作用,结果表明其对DNA有损伤作用,且存在剂量效应关系,一定浓度范围内,DNA的峰电流与酚的浓度呈线性下降关系。R%D_(50)值分析结果表明这三种酚污染物中间甲酚最容易损伤DNA。

The results show that during laser cladding, SiC of different forms is decompounded partially; with the increasing of the SiC adding content, the quantity of un-melt SiC increases and hardness of cladding layers improves.

结果表明,随着加入量的增加,熔覆层中未熔SiC含量增加,熔覆层硬度也随之提高;对比加入颗粒状和纤维状SiC的熔覆层的显微硬度表明,同含量情况下纤维状SiC的强化效果更显著;造成熔覆层硬度显著提高的原因是未熔SiC,析出相FeSiC的弥散强化和熔入的Si,C元素引起的固溶强化作用。

Theresults indicated that the initial desorption rate of As was higher than As, but thefinal desorption percentage of As was two times higher than As; that in therange of pH(6.5-8.5), the desorption of As was the lowest(pH=6.5),and thepercentage increased with the pH value increasing or deescalating, but for the As,thepercentage increased with the increase of pH; that the supersonic accelerated desoptionof arsenic and the final percentage was lower than non-supersonic; that on the conditionof UV-light ,in a word, it took negative effect to desorption The"reproduced process"has been used in the procedure of regeneration.

实验结果表明,初始阶段,三价砷的脱附率高于五价砷,但最终脱附率三价砷低于五价砷;三价砷、五价砷在不同温度下的脱附实验表明三价砷的最佳脱附温度低于五价砷的最佳脱附温度;在pH=5.5-8.5时,随着pH的增大,五价砷的脱附率具有先减小再增大的趋势,在pH为6.5时脱附率降至最小;在pH=5.5-8.5时,三价砷的脱附率随pH的增大而增大;不论是三价砷还是五价砷的脱附过程,超声波条件都会促进脱附速率(来源:ecABC论a4文网www.abclunwen.com)的增加,并且最终的脱附率要高于无超声波条件下的脱附率;紫外光照条件下,随着光照时间的增加,两种价态砷的脱附率会达到一个较高的值,再降低。总体而言,紫外光照的存在不利于脱附的进行。

The results show that although both Ni substitution and Mg vacancies are effective in desorbing hydrogen at lower temperatures, the substitution of Ni at the Mg site is energetically more favorable than the formation of Mg vacancies. The Ni atoms of NiF2 can replace some Mg atoms of MgH2 systems, the reaction of NiF2+3MgH2=MgF2+Mg2NiH4 during mill process is accelerated, thus, MgH2 with the higher stability can be changed into Mg2NiH4. Because of a ternary hydride Mg2NiH4 with lower stability forming, the dehydrogenating properties on Ni doped MgH2 systems are improved.

结果表明:Ni替代Mg和创造Mg空位对MgH2体系解氢而言,均发挥有益作用,而形成Mg空位所需能量(6.51 eV)高于Ni替代Mg所需能量(2.12 eV),表明低温下Ni替代Mg对MgH2体系解氢而言更有利,至此NiF2中的Ni替代MgH2中的Mg,有利于加速化学反应NiF2+3MgH2=MgF2+Mg2NiH4向右进行,使结构稳定的MgH2发生转变,生成结构不稳定的Mg2NiH4,这样体系解氢过程不是通过MgH2,而是转变为通过Mg2NiH4进行,因此,Ni掺杂提高了MgH2体系的解氢性能。

When the field is applied along the wires, the hysteresis loop exhibits a shear effect, which always means an equivalent demagnetizing field. It comes from the dipole interaction between the wires. The coercivity of the Fe nanowire arrays in the diameter of 16nm is 2000Oe at 300K, and it will increase to 2800Oe when the temperature decreases to 5K.

不同直径的Fe纳米线的磁滞回线均表明沿着线的方向均表现出shearing effect,表明其中存在一个等效退磁场,它来源于线间的偶极相互作用。16m的Fe纳米线的矫顽力室温下为2000Oe,5K时则达到2800Oe。

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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.

然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。

A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.

付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。