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At last,this paper analyzed the influence of the inversive receiver to the chracteristic of the clutter and the ratio of signal power and the noise power ,discussed the effective detection of target signal in correlated clutter,and then put forward a new method naming multi-periods shift accumulation for detecting moving target when not knowing the exact movement parameter.

最后,本文分析了倒置接收对目标回波信噪比及杂波特性的影响,讨论了在相关杂波区对回波信号有效检测的方法。针对如何在弹目相对运动参数未知的条件下对高速运动目标进行积累检测这一问题,提出了一种多周期移位积累的新方法。

Poor students should think over their own intelligence state and diligent intensity that can been paid out to establishi expectation level and adjust the goal. So the goal can finally been ladderlike and systematism.

贫困学子在确立自己的期望水平时要注意从自己的智力状况和自己所能付出的努力程度为调整目标,最后将目标梯度化、体系化。

After flow and transient stability calculating of the 330kV grid, we got the over-load and hazard lines set. Then we gained the redundant network needed to be built according to the increasing power supply and load in 2010. Adopting regradation step-by-step algorithm by which we can improve the calculation efficiency , we compared the validity of every line, deleted lines with low validity until no redundant line is in the network. At last we got the target network framework adopting the improved ant colony algorithm. Flow distribution, construction investment assessment and target framework of Gansu long-term planning all be considered, from the viewpoint of to be economic and reliability the feasibility of the improved ant colony algorithm is discussed.

在对2006年该网架结构进行了潮流计算与暂态稳定计算分析后,得出了系统的过负荷与危险线路集,并针对2010年新增的电源和负荷点确定了冗余的待建网架,然后利用逐步倒推法比较各待选线路在系统中的有效性,逐步去除有效性低的线路,直到网络中没有冗余线路为止,以此来以提高优化算法的计算效率,最后利用改进后的蚁群算法确定优化后的目标网架结构,并从潮流分布、建设投资估算等方面与甘肃电网远期规划中确定的目标网架进行了比较,从可靠性和经济性角度论证了改进蚁群算法在网架优化中的可行性。

The strong and weak points as well as the scope of application of the modeling method based on the target function for the optimization WOB model are summarized.

以综合钻井成本最低为准则,建立了钻井成本目标函数,讨论了影响钻井成本的因素,给出了钻压优化模型的约束条件,在以上基础上建立了钻压优化模型,并给出了钻压优化模型在线实时求解过程中有关参数的确定方法,最后总结了基于目标函数钻压优化模型建模方法优缺点和适用范围。

The result pointed out that the vertical distribution of foliage for each species was different,however,generally speaking,the foliage in upper crown (0.3CL) for broad-leaved species in natural secondary forest took a small percentage,about 10%;in middle or middle lower of the crown(0.4CL to 0.8CL) the branches here took the majority percentage of whole foliage,almost 60%to 75%;but in lower crown(0.8CL),there was about 10%of whole foliage.(5)The interspecies competition of trees in secondary forest was expressed by Hegyi competitioin index,and the active competitor was calculated by the competition zone radius and the tree position,DBH,and distance in the zone,it was not all competitors in tranditional calculation.The study introduced crown area overlap index to describe the crown competition between subject tree and its competitors,furthermore,the crown area was classified into 5 levels with a method of equal crown projection area,therefor,the resulting crown area overlap index showed more realities of existing stand conditons.(6)Based on the theoretics of multiply divide,the spatial strcture optimizing model of secondary forest stand selective thinning was developed by diversity mingling,aggregation index,competition index and crown area overlap index,also designed 10 constraint conditions which were related to forestry meanings,the objective function was solved by the implicit enumeration method with LINGO 9.0,using 0-1 integer programming.

并且得出,每个树种在树冠内相对高度上的叶量的垂直分布是不同的,天然次生林阔叶树种的叶量在树冠的上部(0.3CL以下)所占比例很小,约占10%左右;在树冠的中部以及中下部(0.4CL~0.8CL),叶量所占比例最大,几乎集中了整个树冠60%~75%的叶量;而在树冠的下部(0.8CL以下),几乎占很少的叶量,大约10%左右。5、采用Hegyi竞争指数来表现次生林内林木的竞争关系,并且根据竞争圈的大小和林木在竞争圈内的分布位置、大小与距离来计算有效的竞争木,并不是传统意义上的全部竞争木;本研究提出用树冠叠加指数来表示林木与周围树木的树冠竞争情况,并采用等树冠投影面积法把树冠分为5级,这样计算的树冠叠加指数更加与现实林分相符。6、本研究基于乘除法的思想,用多样性混交度、聚集指数、竞争指数和树冠叠加指数构建了天然次生林择伐空间优化模型,设计了10个与林学意义相一致的约束条件,并采用0-1整数规划的思路,在LINGO9.0软件中使用了隐枚举法对目标函数求得最优解。7、以M702标准地为应用实例,具体计算出了每株采伐木,经过择伐后,目标函数值按模型设计的要求发生了极大的改变,增加了5倍多,说明了最后这个解的优良性,满足了设计的要求。

Firstly, the flood control regulation of TGP in Sep is computed based on the analyses on the inflow in Sep and Oct, and the risk and loss on the ahead impounding scheme is calculated and analyzed. Then, the storage level, power production and releasing discharge are achieved by computing on the electricity generation model through reservoir regulation graph. Thirdly, obstruction in channel is analyzed and the problem in the Chongqing reach is more serious in 175-145-155m scheme. The sediment aggrading process and distribution on different schemes is calculated by 1-D reservoir mathematical model. The navigation benefit is computed by navigation model. Based on above calculations, the impounding time is decided by the multi-purpose decision model, and evaluate by analytical hierarchy and balance layout model. A best impounding scheme is achieved to match the requirement of flood control electricity generation and navigation et al.

首先,在对宜昌站9、10月份来水分析的基础上,采用第2章建立的防洪优化调度子模型进行了三峡水库9月份防洪调度,分析了汛末提前不同天蓄水对防洪的影响,计算了汛末不同蓄水方案水库9月份的洪灾风险率和风险损失;接着,根据第2章建立的发电调度子模型进行了三峡水库发电调度计算,得出了不同蓄水方案下水库的坝前水位、发电量及下泄流量过程;然后,分析了175-145-155m方案下三峡水库的碍航问题,指出175-145-155m方案下重庆河段的碍航问题最为严重,通过进行不同蓄水方案下水库一维泥沙冲淤计算,得出了不同蓄水方案下库区淤积过程及分布,并通过航运调度子模型,计算了不同蓄水方案下水库的航运效益;最后,根据以上防洪、发电及航运调度计算的结果,运用第3章水沙多目标决策模型对水库的蓄水时间进行了多目标决策,并采用层次加权均衡规划模型对计算结果进行评价,得到一个能满足水库防洪、发电及航运各方面要求的最佳蓄水方案。

The traditional snake model only applies the features of the curve, which did not adequately apply the feature of the image. But in the algorithm, the corners of the detected object is detected based on the MIC operator; the initialized curve is set based on the corners; the object is fitted according on the snake model. The traditional snake model highly depended on the initialized position of the curve and can not get well fitted effort for the image which has the corners and concaves. The proposed algorithm preferably solve the drawbacks.

传统的snake算法只考虑曲线本身的特征,并没有充分的利用被拟合图像本身的特征,而此算法首先检测被拟和目标的角点,然后以这些角点为基准进行曲线初始化,最后根据snake算法进行目标拟和;较好地解决了传统snake模型对初始化位置敏感、对有角点和凹陷的图像收敛效果差的缺点。

The company should take the corresponding countermeasures, firstly adjusting the organizations and agencies, next analyzing the setting and responsibility of all posts, then decompounding the KPI of all posts, and finally completing the re-designation of performance appraisal system.

JD监理公司应采取相应的对策,首先进行组织机构调整,其次进行工作分析并明确了各部门的岗位设置及岗位职责,然后根据公司的发展目标,在对目标层层分解的基础上设计岗位关键绩效指标,最后完成了公司绩效考核体系和考核结果应用系统的设计。

Methods: 2ethyl aniline was used as starting material of the synthesis and was processed by acetic anhydride acylation, strong nitric acid nitraction at low temperature, and desacyl synthesis to produce 2ethyl5nitro aniline. The product was then synthesized to 3methyl6nitro1Hindazole by using ringclosing reaction in the presence of NaNO2, and then ethylated to obtain 2,3diethyl6 nitro2Hindazole. The latter compound was then reduced by SnCl2/Hcl to get target compound 2,3diethyl6nitro2Hindazole.

以2乙基苯胺为原料经醋酐酰化、浓硝酸低温硝化及去酰基保护合成2乙基5硝基苯胺,后用亚硝酸钠关环得3甲基6硝基1H吲唑,经硫酸二甲酯甲基化得2,3二甲基6硝基2H吲唑,最后用氯化亚锡将其还原得到目标产物,通过1H NMR确定结构与目标产物一致。

Methods: 2-ethyl aniline was used as starting material of the synthesis and was processed by acetic anhydride acylation, strong nitric acid nitraction at low temperature, and desacyl synthesis to produce 2-ethyl-5-nitro aniline. The product was then synthesized to 3-methyl-6-nitro-lH-indazole by using ring-closing reaction in the presence of NaNO2, and then ethylated to obtain 2, 3-diethyl-6- nitro-2H-indazole. The latter compound was then reduced by SnC12/Hcl to get target compound 2, 3-diethyl-6-nitro-2H-indazole.

以2-乙基苯胺为原料经醋酐酰化、浓硝酸低温硝化及去酰基保护合成2-乙基-5-硝基苯胺,后用亚硝酸钠关环得3-甲基-6-硝基-1H-吲唑,经硫酸二甲酯甲基化得2,3-二甲基-6-硝基-2H-吲唑,最后用氯化亚锡将其还原得到目标产物,通过1HNMR确定结构与目标产物一致。

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推荐网络例句

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。