强地
- 与 强地 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The common method, that all strong-correlation terms of the model are eliminated, can bring the loss in the engineering application, so the new method is proposed that the identified model reserves some correlation. The augmented matrix A is constructed by the outputΔW and the matrix S. The"determinating order based on ratio of determinant"is brought out to screen the strong-correlation terms in the structure identification. The latent root estimation is improved in screening the eigenvalues and eigenvectors. Thus the estimation precision is improved greatly.The consistence check of guidance instrument error coefficients of flight test and ground test is the purpose of flight experiment. The causes of inconsistency of the two models are analyzed. The hypothesis test of linear regression model based on F statistics is proposed to check the consistence.Finally, the instability of error coefficients is probably caused by the change of the flight environments, therefore, the relation between the error coefficients and flight environment is analyzed. The approach is presented to identify SINS guidance instrument error models and compensate the error in the segmented sections corresponding to the change of vertical acceleration of aircraft.
在结构辨识中,常用的方法由于将模型中的强相关项全部剔除而给工程应用带来损失,因此,本文提出了新的有益思想,即在保留一定相关性的基础上进行辨识:将输出向量ΔW与环境函数矩阵S构成增广矩阵A,然后采用"比定阶行列式"来剔除相关向量的方法,这样既可以尽可能多地保留了对落点影响大的强相关参数,又可以对落点影响小的强相关参数给予剔除;在参数估计中,改进了特征根估计中特征根和特征向量的筛选方法,提出"近零"准则,从而大大提高了参数估计的精度;再者,鉴于天地模型"一致性"检验是飞行试验和SINS制导工具误差系数分离的主要目的,因此,本文又深入分析了造成天地模型不一致的原因,提出了采用基于F统计的线性回归模型假设检验方法来进行捷联制导工具误差模型的天地"一致性"检验;最后,鉴于飞行环境剧烈变化可能会对惯性仪表误差系数稳定性带来一定的影响,因此本文深入地分析了SINS制导工具误差系数与外界环境的关系,提出了基于过载变化大小的分段辨识和分段实时补偿的算法。
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Chapter 1 gives the background,current research process of relatedproblems and summarizes this thesis\'s work.In chapter 2,we study the Brownian motion with holding and jumping on the boundary.We use the resolvent method to obtain the infinitesimal generator because the domain of the infinitesimal generator is essentially the same as the range of the resolvent.Knowledge of this range and of the differential operator determines uniquely the infinitesimal generator.Since the semigroup generated by the DHJ is not strongly continuous,to use the nice property of strongly continuous semigroup in analytic theory,in chapter 3 we show that the dual is strongly continuous and derive ergodicity through spectral radius formulas and finally obtain the ergodic theorem by duality. In chapter 4,we discuss a class of a more general process---one dimensional Feller diffusion proposed by W.Feller in 1954.The Feller diffusion allows the possibility of jumps from boundary to boundary,not only from boundary to the interior.We give the stationary distribution of this process.
具体地,本文的结构如下:第一章给出了问题产生的背景,研究现状及本文的主要工作;第二章研究了在边界上逗留后随机跳的布朗运动,我(来源:3dABC论文网www.abclunwen.com)们用预解算子的方法得到其无穷小生成元,因为无穷小生成元的定义域本质上就是预解算子的值域,知道这个值域和微分算子形式就能唯一地决定无穷小生成元;由于DHJ过程产生的半群不是强连续的,为利用强连续半群的一些漂亮性质,在第三章中我们证明其对偶半群是强连续的,然后由谱半径公式得到遍历性并且最后由对偶得到遍历定理;第四章讨论了Feller在1954年引入的更广的一类过程----一维Feller扩散过程,Feller扩散过程允许有从边界到边界的跳发生,即不仅仅局限于从边界到内部的跳,在这一章中,我们给出了一维Feller扩散过程的平稳分布;在第五章,我们讨论了一些相关的问题,给出了DHJ过程对应的PDE问题及特征值与收敛速度的关系。
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Objective: To observe the clinical effects of high-dose methylprednisolone in the treatment of the acute attacks of neuromyelitis optica.
目的:观察大剂量甲基强地松龙冲击治疗NMO急性发作病人的临床疗效。
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Therelationship between the turbulent kinetic energy and its dissipation rate,whichis widely used to parameterize the dissipation rate in turbulence closure models,is found to hold well for both reversing and rotating flows,but with differentcoefficients.Microstructure profiling measurements at two comparative stations (a deepercentral basin and a local shelf break) in the stratified Yellow Sea are analyzed,with emphasis on tidal and internal-wave induced turbulence near the bottomand in the pyenocline.The water column has a distinct three-layer thermohaline structure,consisting of weakly stratified surface and bottom boundary layers anda narrow sharp pycnocline.Turbulence in the surface layer is controlled by thediurnal cycle of buoyancy flux and wind forcing at the sea surface.while thebottom stress induced by barotropic tidal eurrents dominates turbulence in thebottom boundary layer.The maximum level at which the tidally enhanced mixingcan affect generally depends on the magnitude of the tidal current,and it canbe up to 10-15 m in the Yellow Sea.This suggests that,in the deeper regionsof the shelf seas,turbulent dissipation and mixing are very weak at the levelsbetween the near-bottom tidally enhanced layer and the pycnocline.Therefore,these levels provide a significant bottle neck for the vertical exchanges.In theshallow regions,however,the tidally-induced turbulence can occupy the wholewater colum below the pycnocline.A quarter-diurnal periodicities of the turbulentdissipation rate and eddy diffusivity are found at different heights with evidenttime lag.In the relatively flat central basin,the pycnocline is essentially non-turbulent and internal-wave activity is very weak.Therefore,vertical fluxes acrossthe pycnocline decreased to molecular levels.In contrast,internal waves of variousperiods can be always found near the local shelf break.
对强层化季节黄海两对比性站位(分别位于中央海盆区与局地陆坡区)处层化、内波以及湍流混合特征的研究结果表明:1、强层化季节的陆架海水体一般呈现显著的三层热盐结构,在水体近乎混合均匀的上混合层与潮流底边界层之间为强跃层;2、近表层水体的湍流混合强度主要由海表浮力通量的日变化与海表风强迫控制,而在潮流底边界层内,潮混合是水体热量、物质、动量与能量垂直交换的主要机制;3、潮混合影响的深度由潮流大小决定,在黄海,一般可达10-15 m,因此,在水深较深的区域,在跃层与潮混合所至深度范围的上界之间存在湍流混合非常弱的区域,这显著抑制水体内物质的垂直通量,为物质垂直交换的瓶颈,而在水深较浅的区域,潮混合影响范围可至跃层底部,因此物质在跃层以下整个水体中混合非常均匀,当跃层内间歇性强混合发生时,可以产生显著的跨跃层物质输运;4、近底潮致强湍流耗散缓慢地向上传播,底上不同深度处垂直湍扩散系数也具有显著的位相差异,且二者均随时间呈现四分之一周日周期的变化;5、在地形较为平坦的中央海盆区,内波活动非常微弱,因此跃层内湍流混合非常弱,垂直扩散系数为分子扩散水平,跨跃层物质通量受到显著抑制,而在地形变化较为显著的局地陆坡区,内波活动非常活跃,除内潮的影响外,高频内波与内孤立波的影响也很显著,因此跃层内存在很强的间歇性强混合,内孤立波存在的区域,水体湍流混合显著增强。
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Results showed that shoot biomass of H. annuus was significantly higher than that of R. acetosa and R. hastatus; among three plant species, 134Cs specific activity in shoots was the highest in H. annuus after 50 d-treatment, however after 70 d-treatment, that in R. acetosa was the highest. Bioaccumulation ratio reached 1.5, 1.4 and 1.3 in R. acetosa, R. hastatus and H. annuus after 70 d-treatment, and the former two plants kept with trend of continuously increasing. Three plants were resistant to 134Cs contaminated soil and capable of translocating 134Cs from soil to plants. Among them, H. annuus removed greatest 134Cs amount in the aboveground part during the experiment period, and R. acetosa, R.
结果表明,向日葵地上部生物量显著高于酸模和戟叶酸模;处理50d时,向日葵地上部134Cs比活度在3种植物中达到最高,而在处理70d时,酸模地上部134Cs的比活度达到最高;处理70d时,酸模、戟叶酸模和向日葵对134Cs的富集系数均大于1,分别达到1.5、1.4和1.3,且前2种植物继续保持快速上升的趋势。3种植物对铯污染土壤具有一定的忍耐性,并具有较强的从土壤向植物转移铯的能力;在本实验期内(70d)向日葵对土壤中放射性铯的剔除能力最强,而酸模和戟叶酸模则具有更强的铯转移能力。
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Negative CG flashes usually occurred in intense echo regions with reflectivity greater than 50 dBz, while the positive CG flashes often occurred in weak and stable echo regions(10-30 dBz) or cloud anvils, although they can be observed in strong convective regions sometimes.
地闪主要发生在大于40 dBz 的区域内,负地闪通常簇集在强回波区(大于50 dBz)或邻近区域,有时密集的正地闪也出现在强回波区或临近区域,但稀疏的正地闪通常发生在强回波外围10-30 dBz的范围内,属于稳定性降水区。
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The result demonstrated that multi-factor activated immune cell transfusion can inhibit hepatitis B virus, but it has no significantly effect on hepatitis virus C.
本项研究初步证实,多因子活化免疫细胞回输,可较强地抑制乙型肝炎病毒,但对丙型肝炎病毒感染的作用不明显。
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This research is very important to improve the safety of high arch dams against strong earthquakes. It provides science references for design of high arch dams and technical guidance for taking steps to reduce hydrodynamic pressures and dynamic responses of high arch dams in earthquakes.
研究了拱坝在强地震中的动水压力和降低动水压力的气幕隔震技术,对提高拱坝的抗震安全性具有重要的科学意义和实际价值,对高拱坝的抗震设计和采取工程措施减小动水压力提供理论依据和技术指导。
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They Told Him Don't You Ever Come Around Here Don't Wanna See Your Face, You Better Disappear The Fire's In Their Eyes And Their Words Are Really Clear So Beat It, Just Beat It You Better Run, You Better Do What You Can Don't Wanna See No Blood, Don't Be A Macho Man You Wanna Be Tough, Better Do What You Can So Beat It, But You Wanna Be Bad Just Beat It, Beat It, Beat It, Beat It No One Wants To Be Defeated Showin' How Funky Strong Is Your Fighter It Doesn't Matter Who's Wrong Or Right Just Beat It, Beat It Just Beat It, Beat It Just Beat It, Beat It Just Beat It, Beat It They're Out To Get You, Better Leave While You Can Don't Wanna Be A Boy, You Wanna Be A Man You Wanna Stay Alive, Better Do What You Can So Beat It, Just Beat It You Have To Show Them That You're Really Not Scared You're Playin' With Your Life, This Ain't No Truth Or Dare They'll Kick You, Then They Beat You, Then They'll Tell You It's Fair So Beat It, But You Wanna Be Bad Just Beat It, Beat It, Beat It, Beat It No One Wants To Be Defeated Showin' How Funky Strong Is Your Fighter It Doesn't Matter Who's Wrong Or Right Just Beat It, Beat It, Beat It, Beat It No One Wants To Be Defeated Showin' How Funky Strong Is Your Fighter It Doesn't Matter Who's Wrong Or Right Just Beat It, Beat It, Beat It, Beat It, Beat It Beat It, Beat It, Beat It, Beat It No One Wants To Be Defeated Showin' How Funky Strong Is Your Fighter It Doesn't Matter Who's Wrong Or Right Just Beat It, Beat It, Beat It, Beat It No One Wants To Be Defeated Showin' How Funky Strong Is Your Fighter It Doesn't Matter Who's Wrong Or Who's Right Just Beat It, Beat It, Beat It, Beat It No One Wants To Be Defeated Showin' How Funky Strong Is Your Fighter It Doesn't Matter Who's Wrong Or Right Just Beat It, Beat It, Beat It, Beat It No One Wants To Be Defeated Showin' How Funky Strong Is Your Fighter It Doesn't Matter Who's Wrong Or Right Just Beat It, Beat It Beat It, Beat It, Beat It
They告诉他不您来周围 Do不想要看您的面孔,您更好消失在他们的眼睛的The火的和他们的词是真正地清楚 So敲打它,打了它 You改善奔跑,您改善做什么您能 Do不想要看血液,不是一强壮男子的人 You想要是坚韧的,更好做什么您能 So敲打它,但是您想要是坏的 Just敲打它,打了它,打了它,打了它没人想要被击败 Showin质朴强怎么是您的战斗机 It不重要谁是错误或不错 Just敲打它,打了它 Just敲打它,打了它 Just敲打它,打了它 Just敲打它,打了它 They是得到您,更好的事假,当您能时Do不想要是男孩,您想要是一个人 You想要停留活,更好做什么您能 So敲打它,打了它 You必须表示他们,您真正地不是害怕的 You是与您的生活的Playin,这不是没有真相或胆敢 They将踢您,然后他们打您, Then他们将告诉您它是公平的 So敲打它,但是您想要是坏的 Just敲打它,打了它,打了它,打了它没人想要被击败 Showin质朴强怎么是您的战斗机 It不重要谁是错误或不错 Just敲打它,打了它,打了它,打了它没人想要被击败 Showin质朴强怎么是您的战斗机 It不重要谁是错误或不错 Just敲打它,打了它,打了它,打了它,打了它 Beat它,打了它,打了它,打了它没人想要被击败 Showin质朴强怎么是您的战斗机 It不重要谁是错误或不错 Just敲打它,打了它,打了它,打了它没人想要被击败 Showin质朴强怎么是您的战斗机 It不重要谁是错误的或谁是不错 Just敲打它,打了它,打了它,打了它没人想要被击败 Showin质朴强怎么是您的战斗机 It不重要谁是错误或不错 Just敲打它,打了它,打了它,打了它没人想要被击败 Showin质朴强怎么是您的战斗机 It不重要谁是错误或不错 Just敲打它,打了它 Beat它,打了它,打了它
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The results show: 96.7% of CG appeared within the range of 40 to 55 dBz, and the center of maximum CG density always coincided with the center of intense echoes, but CGs seldom appeared above 65 dBz. often concentrated around the area with VIL greater than 40 kg · m-2, and the center of maximum CGdensity frequently located around the margin of the center of VIL.
结果表明在 MCS 强雷暴演变过程中:①总地闪数的96.7%集中落在 CR 为45~55 dBz 的回波区域内,在 CR 大于60 dBz 的强回波区域内地闪总数却很少;地闪密集中心的位置与 CR 大于等于50 dBz 的强度中心常常重合;②地闪密集中心与 VIL 中心常常不重合,常落在 VIL 高值中心的边缘或落在 VIL 为20~30 kg · m-2的区域中;在 VIL 小于20 kg · m-2的地方存在较为活跃的地闪。
- 推荐网络例句
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In the United States, chronic alcoholism and hepatitis C are the most common ones.
在美国,慢性酒精中毒,肝炎是最常见的。
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If you have any questions, you can contact me anytime.
如果有任何问题,你可以随时联系我。
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Very pretty, but the airport looks more fascinating The other party wisecracked.
很漂亮,不过停机坪更迷人。那人俏皮地答道。