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Results as bellows: AtSIRT1 was located in Mitochondrial as hSIRT4 of human, and maybe take part in respiration and electron transformation chain, AtSIRT2 was located in nucleolus as hSIRT6 of human, maybe play important role in extend lifespan;mutation in AtSIRT1 leaded to cotyledon of plant turn to yellow and caused short life span. Mutation in AtSIRT2 could make the color of leaf turn to purple and accumulate a lot of anthocyanin;Sirtinol, a inhibitor of SIRT which did not cause the same model of the mutation of AtSIRT1 and AtSIRT2 indicated that the mechanism of Sirtinol was different from other organism;the structure of AtSIRT1 and AtSIRT2 were similar to other known Sir2, which indicated that they maybe have the same function;AtSIRT2 was overexpressed and its activity was detected.

结果表明,1,拟南芥AtSIRT1与人的同源蛋白hSIRT4相同,定位于线粒体,可能参与呼吸作用和电子传递,SIRT2与人的同源蛋白hSIRT6相同,定位于细胞核,可能同它的功能类似,在延缓衰老及调节细胞寿命方面起作用。2,AtSIRT1突变,可引起幼苗和植株的子叶变黄和早衰;AtSIRT2突变,可引起叶片发紫,沉积大量花青素。3,SIRT蛋白的抑制剂Sirtinol不能表型模写AtSIRT1和AtSIRT2突变体,说明Sirtinol在拟南芥中的作用机制不同于其他生物。4,AtSIRT1和AtSIRT2蛋白质结构预测表明与已知的Sir2蛋白相似,揭示其功能的相似性。5,在大肠杆菌中过量表达了其中一个基因(AtSIRT2),可体外检测其酶学活性,进一步证明其功能。

The research shows that in the Yinggehai basin, the formation of CO_(2) reservoir which is crust-sourced and crust-mental-mixed-sourced, mainly controlled by local action of hot fluid in the mud diapir area which is multi terms and multi zones and by physical-chemical mechanism of very thick marine calcareous sandstone and mudstone of Pliocene-Miocene. The volcano- and mantle-sourced CO_(2) in the Qiongdongnan basin and Pearl River Mouth basin is mainly controlled by volcanos activities and by the exist of large faults which reached to base to connect the gas from the mantle. According to different mechanism ang formation of reservoir os the the crustal rock-chemical genesis and volcano-and mantle-sourced CO_(2), we can follow the source of it, analysis and predict the migration and accumulation and distribution model of gas and espacially CO_(2), so as to help to make the plan of petroleum exploration and reduce the risk of exploration.

认为:莺歌海盆地壳源型及壳幔混合型CO2的形成及富集成藏,主要受控于泥底辟热流体晚期分层、分块和多期的局部上侵活动,和巨厚的上新统—中新统海相含钙砂泥岩的物理化学综合作用,且CO2运聚分布规律亦具多期和分层、分区的特点;琼东南盆地东部及珠江口盆地火山幔源成因型CO2则主要受控于幔源型火山活动和沟通深部气源的基底深大断裂的导气配置作用,CO2运聚富集规律与幔源型火山活动及深大断裂的发育展布密切相关,CO2主要来自地壳深部幔源火山活动所伴生的大量CO2;因此,根据壳源岩石化学成因型CO2与火山幔源成因型CO2不同成因机理及成藏条件,可以追踪CO2气源,可分析和预测天然气尤其是CO2的运聚分布规律,可为天然气勘探部署及决策提供依据,可减少和降低勘探风险。

In this article, we introduce a new effective method for evaluation of DP based on generalized additive models.

研究表明,广义可加违约概率模型不仅具有很高的预测精度,而且具有良好的可解释性和计算效率。

Results of calculation example show that using the proposed model, higher forecasting accuracy can be achieved by use of less historical data; the obtained forecasting parameters not only can be used to evaluate the wind resource of wind farm, but also by use of inverse operation of probabilistic distribution the wind speed sequence that consists with the forecasted parameters can be obtained.

算例结果表明,该模型可以用较少的历史数据获得较高的精度,而预测所得的参数既可以用来评估风电场的风资源,又可根据概率分布的逆运算得到符合预测参数的风速序列。

"It is far more sensitive than radiography for bone erosion in patients with early rheumatoid arthritis, and can detect pre-erosive features, such as osteitis and synovitis, along with tendonitis and potentially other MRI features that can be used to predict which patients will go on to severe destructive joint damage and irreversible functional disability," Dr.

Peterfy医师进一步指出,对於早期类风湿性关节炎病患而言,MRI在骨质糜烂的诊断上,远比X光摄影灵敏许多,且可侦测到糜烂前的特徵;像是骨炎与滑膜炎、连同肌腱炎与可用於预测严重破坏性关节损害及无法恢复的功能障碍,能一开始就向病患展现准确的预测,进行一个有效率的病患管理是非常重要的。

In this thesis, the methods of surrounding rock masses stability classification on the basis of the geological documentation of muck and the boring parameters of TBM are approached, especially as follows:①The geological documentation of muck and the boring parameters of TBM in the Yellow River Diversion Project.of shanxi province is summarized systematically;②Based on the geological documentation of muck and the boring parameters of TBM, that whether the common methods of surrounding rock masses stability (the methods of regular factor classification) classification are feasible, is carried on the discussion;③According to the corresponding relation of muck and the boring parameters of TBM and the surrounding rock masses stability type, the extension assessment method of tunnel surrounding rock masses stability classification is set up, also the corresponding fortran calculation procedure worked out, and not only rational result in conformity with the reality can be obtained, but also the stability situation of surrounding rock masses in front of the working range can be predicted according to the change of the dependent value in the application instance of Yellow River Diversion Project;④Combining with the application instance of Yellow River Diversion Project, extension assessment method in the application of surrounding rock masses stability classification is compared and verificated in detail by applying fuzzy synthesis method by forefathers, and a certain degree discussion and summary about the application achievement of surrounding rock masses stability classification, which is assessed by extension assessment method and fuzzy synthesis method, are carried on.

本文基于渣料和TBM掘进参数的地质编录提供的地质信息进行了围岩稳定分类方法的探讨,重点进行:①对引黄工程中渣料和TBM掘进参数的地质编录的系统整理;②基于渣料和TBM掘进参数的地质编录获得的地质信息,对常用围岩稳定分类方法是否能够进行围岩稳定分类进行了探讨;③根据渣料和TBM掘进参数与围岩稳定类型的对应关系,应用可拓理论,建立了隧洞围岩稳定分类的可拓评价方法,还编制了相应的fortran计算程序,并在引黄工程的应用实例中不仅取得了与客观实际相符的合理结果,而且根据其关联度值的变化能够预测临近掌子面前方围岩的稳定情况;④结合引黄工程的应用实例运用模糊综合评判方法对可拓评判方法在围岩稳定分类中的应用进行了详细的验证、比较,并对前人在运用可拓学和模糊数学进行岩体稳定评判的应用成果方面,进行了一定的探讨、总结。

The measurement system error model analysis is introduced into power system real time network state analysis as an important part for the first time, which can improve on the state estimation quality and provide the capability to monitor the operation of the measurement system; 2. The theory and algorithm of the on-line estimation and update of measurement noise variance based on the relation between the residual variance and noise variance. The statistic properties of the sample variance are discussed and the relation between the estimation precision and sample size under given confidence level is derived; 3. The theory and algorithm of detection and identification of measurement bias are presented, which is based on the relation between residual mean and noise mean. The statistic properties of sample mean are discussed and the relation between estimation precision and sample size is derived; 4. The Givens orthogonal transformation algorithm is selected to be the essential algorithm of state estimation, the fast orthogonal transformation algorithm with damp factor and the algorithm which can handle the zero injection measurements efficiently are presented; 5. The quantity analysis theory of bad data detectivity and identifibility are presented, which describes the relation between the elements in matrix W〓 and bad data amplitude and can provide the theory base for measurement system design and valuation.

一、首次将量测系统误差模型分析做为一个环节引入电力系统实时网络状态分析中,为EMS系统增加了实时监视系统运行、修正量测系统误差模型的新功能,进一步发挥了实时网络状态分析应用软件的潜力;二、首次提出了应用样本方差在线估计与修正量测系统误差方差的基本理论,讨论了样本方差的统计性质和概率分布,推导出了样本容量、估计精度和置信度之间的关系,给出了在线估计与修正量测系统误差方差的算法;三、首次提出了应用样本均值在线检测与辨识量测偏差的基本理论,讨论了样本均值的统计性质,推导了样本容量、估计精度和置信度之间的基本关系,给出了在线检测与辨识量测偏差的算法;四、在状态估计算法设计中,以Givens变换算法做为基本算法,提出了快速正交变换阻尼因子法和可以有效地处理零注入量测的混合法,并对实时应用中的一些问题进行了讨论;五、提出了不良数据可检测性与可辨识性的定量分析理论,揭示了描述量测系统配置、网络结构与参数的残差灵敏度矩阵中的元素与不良数据的幅值在可检测、可辨识能力上的定量关系,为量测系统配置设计与评价提供了理论基础;六、综合国内外最新研究成果,采用自适应自回归预测技术和稀疏矢量技术,构造了较完善的不良数据检测与辨识算法。

Results Compared with percutaneous coronary angiography,the sensitivity of sixteen slice sparil CT in diagnosing moderate and severe coronary stenosis was 83.05%,and the specificness,positive predictive value,negative predictive value and degree of accuracy was 95.97%,89.09%,93.46% and 92.31% respectively.

结果 16层螺旋CT冠状动脉造影对照经皮选择性冠状动脉造影对冠状动脉中、重度狭窄显示的对照结果:敏感性83.05%、特异性95.97%、阳性预测值89.09%、阴性预测值93.46%、准确度92.31%。结论 16层螺旋CT冠状动脉造影对心电图正常的胸痛患者具有良好的诊断价值,并可对冠状动脉形态学进行良好的评价,从而进行介入治疗的筛选。

The area threatened by landslide accounts for 1/4 or 1/5 of the area of national land, landslide activity enter new activeness issue on a large scale in recent years,these landslide once happen,will bring unestimated losses.but if we can accurately forecast the time of the landslide 's happ

这些滑坡一旦发生带来的损失将是无法估量的。但是,如果能比较准确地预报滑坡发生的时间,则可采取相应的防治措施,防患于未然,将滑坡灾害造成的损失减少到最低点。基于以上目的,本论文针对滑坡预报中存在的两个关键问题展开了研究,一、如何有效地剔除影响滑坡预报准确度的虚假噪声;二、如何根据各个预测模型的预测结果整合出一条综合信息。在

The generating reason,response characteristic and distributing rule of remaining oil was deeply studied aiming at water-flooded continental reservoir with characteristic of intense heterogeneity,high water-cut,low recovery efficiency,complex distributing rule of mobile remaining oil,intergrowth of major and untabulated formation . At the same time,a systemic method of evaluation and predicating remaining oil and pressure was put forward basing on the theory of development geology,seepage flow mechanics,fluid mechanics which resolved the hard technologic problem of predicting remaining oil and pressure.

本文针对陆相注水开发油藏具有非均质性强、含水率高、原油采收率低、可采剩余油分布复杂、主力产层和表外产层同时存在等特点,深入研究了剩余油的形成机理、响应特征和分布规律,应用开发地质学、渗流力学、流体力学和地质统计学理论,将静态地质数据和动态开发数据相结合,综合现有的与剩余油及压力分布有关的所有资料,提出了一套系统的评价和预测剩余油及压力的方法,较好地解决了目前剩余油与压力评价和预测中的技术难题。

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推荐网络例句

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。