大改变
- 与 大改变 相关的网络例句 [注:此内容来源于网络,仅供参考]
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When treat-ing the spectra, transition, scattering problems, we must use the semi-microscopicapproach. The main new conclusions in this thesis are following:We found the different shrinking effect in ∧ hypernuclei and 〓 hypernuclei, the shrink-ing effect in ∧ hypernuclei are confirmed in a recent experiment;We also found a new approach to treat the configuration mixing of ∧∧ hypernuclei and〓 hypernuclei and that the conversion process may change the spectra and widths of〓 hypernuclei;For the first time, we investigate the neutron star matter without the ∑ hyperon butwith the new meson 〓(975) and φ(1020), we found the contribution of 〓 and φ canmake the equation of state of neutron star soften, and the maximum mass of neutronstar reduces;we extract a set of optimum parameters of the optical potential for the scattering of 〓with nucleus, we found that the 〓 nucleus optical potential need a bigger imaginarypart.
本论文所取得的主要新成果是:独立揭示∧超核和〓超核的不同的收缩效应,其中∧超核的收缩效应被最新实验证实;提出了处理∧∧超核与〓超核混合态的新方法,并发现conversion过程使〓超核能谱和宽度改变;首次在中子星研究中在不包含∑超子的同时考虑新介子〓(975)和φ(1020),并发现这可使中子星物质的状态方程变软、中子星半径变大、质量变小;独立提取了〓核光学势的一组最佳参数,并证明〓+核光学势要求一个较大的虚部。
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In this paper, the author sets up the dynamic model of the vibratory extracting-driving piling machine, and carries out the dynamic analysis, parameter calculation and Matlab's simulation for this model. Using the equation reciprocity law to carry out the calculation of soil parameter and simulation, and using the genetic algorithm to make optimization of the machine on the basis of the simulation, the author gets the optimum self-induced vibration frequencies of the machine changing with the depth of the pile and the optimization result of other parameters, thus reaching the conclusion that along with the increase of pile sinking depth, the optimum self-induced vibration frequency becomes bigger, and the vibration mass becomes smaller, hence deepening the knowledge of the dynamic performance of this system.
本文建立了振动沉拔桩机的动力学模型并对这一模型进行了动力学分析、参数计算和Matlab仿真,并利用方程对等法进行土壤参数的计算和仿真,又在仿真的基础上使用遗传算法对桩机进行了优化,从而得出了路基加固振动沉拔桩机随沉桩深度变化而改变的最佳激振频率以及其它参数的优化结果,并得出了随沉桩深度的增加,桩机的最佳激振频率由小变大,最佳参振质量由大变小的结论,深化了对该系统动力学性能规律的认识。
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In this paper, the author sets up the dynamic model of the vibratory extracting-driving piling machine, and carries out the dynamic analysis, parameter calculation and Matlabs simulation for this model. Using the equation reciprocity law to carry out the calculation of soil parameter and simulation, and using the genetic algorithm to make optimization of the machine on the basis of the simulation, the author gets the optimum self-induced vibration frequencies of the machine changing with the depth of the pile and the optimization result of other parameters, thus reaching the conclusion that along with the increase of pile sinking depth, the optimum self-induced vibration frequency becomes bigger, and the vibration mass becomes smaller, hence deepening the knowledge of the dynamic performance of this system.
本文建立了振动沉拔桩机的动力学模型并对这一模型进行了动力学分析、参数计算和Matlab仿真,并利用方程对等法进行土壤参数的计算和仿真,又在仿真的基础上使用遗传算法对桩机进行了优化,从而得出了路基加固振动沉拔桩机随沉桩深度变化而改变的最佳激振频率以及其它参数的优化结果,并得出了随沉桩深度的增加,桩机的最佳激振频率由小变大,最佳参振质量由大变小的结论,深化了对该系统动力学性能规律的认识。
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3Record the electroencephalogram of the SD rat dynamically.We use extracellular microelectrode to recorde the epileptiform burst in the CA3 area of the hippocampus in TLE rat slices. We use t-test, bivariate correlate evaluation and partial correlate evaluation to analyse the relationship between hippocampal plasticity and epileptogenesis of the temporal lobe epilepsy.
观察大鼠脑电的变化,并在颞叶癫痫模型大鼠离体海马脑片上记录自发性癫痫样电活动,应用t检验、Bivariate相关分析及Partial相关分析从多方面来了解海马可塑性改变与颞叶癫痫发生的相关性。
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Objective:Through the establishment of tractive spinal cord injury model on the rat,we discussed the pathophysiological changes and clinical significance of this scathe by the evaluation of magnetic stimulating motion evoked potential and behavioral functional tests.
目的 :建立大鼠脊髓牵拉性损伤的模型,探讨实验性脊髓牵拉性损伤的病理生理改变及临床意义。方法:双侧椎板切除显露大鼠脊髓的全宽,用模拟神经拉钩特制的牵开器由侧方牵拉脊髓,实现水平方向上的脊髓牵拉性损伤,并用磁刺激运动诱发电位和行为学功能试验指标进行综合评价。
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RESULTS: The mRNA levels of sodium pump α1-subunit increased and α2- and α3-subunit were unchanged in the cortex of kidneys from 1k1c hypertensive rats compared with control rats, while no change has been found for all the three subunits gene expressions at protein level.
结果:正常大鼠肾脏皮质主要表达钠泵α1亚单位,α2与α3亚单位表达较弱;在mRNA水平,1k1c高血压大鼠肾脏皮质钠泵α1亚单位表达明显较强,α2与α3亚单位表达无改变,而在蛋白水平各亚单位基因表达与对照组比较均无明显差异。
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Once the sparger installed in the CMT, the fluid temperature above the sparger and the initial pressure of pressurizer are the key factor, which affect the condensation characteristic and temperature equilibrium time.
通过对不同初始条件下的CMT排水量进行了分析,发现CMT排水速度主要受CMT内的压力变化的影响:CMT无遮流板排水实验中所有排水量随时间的变化曲线都是单调递增的,且都有一个较为明显的拐点,在拐点后,斜率明显增大,说明排水速度增加显著;CMT加遮流板排水实验中排水量曲线的拐点不明显且出现时间较无遮流板排水实验要早,说明排水速度增加得较早;CMT加遮流板排水实验如果PRZ初始压力较大,通过改变CMT的初始温度,将会引起排水总量较大的变化;排水速度平衡时间受CMT压力平衡响应时间的影响,且较CMT压力平衡响应时间快。
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Objective: By observing the pathological changes of peripheral facial paralysis rats facial nerve and the positive neurons of nitric oxide synthase in the expression of facial nerve tissue, to contrast the effect of spininess and shallow needling with Spininess and fast Needling in expression of NOS.
目的:通过观察周围性面瘫模型大鼠面神经病理形态学改变以及面神经组织内一氧化氮合酶阳性神经元的表达,对比多针浅刺与多针速刺对周围性面瘫大鼠面神经NOS表达的影响,探讨针刺治疗周围性面瘫的作用机理。
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Methods The circulating testosterone level of BPH patients and rats was decreased by administration of medroxyprogesterone and stilbestrol as well as castration. Using RNA dot blot hybridization technic, we detected the Bcl-2mRNA expression in human BPH tissue and rat prostate under different level of androgen.
分别通过服用药物和切除睾丸改变BPH患者和大鼠机体雄激素水平,采用mRNA斑点杂交技术,检测不同雄激素水平下的人BPH组织和大鼠前列腺组织Bcl-2 mRNA的表达情况。
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The results show that the tangential stress distribution is decided by pressure gradient, that is, the maximum tensile stress locates where maximum pressure gradient is, while the compressive stress locates where pressure gradients change their direction.
结果显示,轴瓦周向应力分布取决于油膜压力的梯度,最大拉应力位于压力梯度最大处,而周向压应力的峰值则位于压力梯度方向改变处。
- 推荐网络例句
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Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.
最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势,并设计了一款彩色夜视摄像机。
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Only person height weeds and the fierce looks stone idles were there.
只有半人深的荒草和龇牙咧嘴的神像。
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This dramatic range, steeper than the Himalayas, is the upturned rim of the eastern edge of Tibet, a plateau that has risen to 5 km in response to the slow but un stoppable collision of India with Asia that began about 55 million years ago and which continues unabated today.
这一引人注目的地域范围,比喜马拉雅山更加陡峭,是处于西藏东部边缘的朝上翻的边框地带。响应启始于约5500万年前的、缓慢的但却不可阻挡的印度与亚洲地壳板块碰撞,高原已上升至五千米,这种碰撞持续至今,毫无衰退。