种

The main job and contribution of this paper are as follows:Based on narrowband signal processing, we propose a new method for FH signal blind detection and blind parameter estimation. Firstly, compute the cross-correlation function of FH signals from multichannels, then we get the cross power spectral density matrixCSDM Secondly, select the hops of FH signals from the CSDM via processing and analyzing the CSDM, meanwhile reduce the influence coming from noise, fixed frequency signal and other interferences; Lastly, estimating the DOA of every hop and according to the DOA, we can separate the hops, get the number of FH signals and their parameters. Propose a new method for designing the threshold in FH signal detection. This method makes it easy to get the threshold by theoretic computing and it can extremely reduce the interference of non-FH signals.Based on broadband signal processing, we propose a new method for FH signal blind detection and blind parameter estimation. Firstly, get the DOA of the signals by wideband spatial spectrum estimation; secondly, separate the signals by spatial filtering using wideband beamformer; Lastly, we propose two methods for FH signal blind detection and blind parameter estimation, one is for several constant hop-rate FH signals whose dwell-time are different and another is for a single FH signal whose hop-rate is alterable.By employing spatial interpolation in broadband signal beamforming, it can reduce the number of antenna elements and corresponding RF modules, A/D converters, etc. It can also eliminate the mutual coupling between antenna elements while getting the narrower main beamwidth and lower sidelobe level.

本文的主要研究工作和贡献如下：●提出了一种基于窄带处理的FH信号盲检测和参数盲估计的实现方法，即首先求出多路信号之间的互相关，进而得到互功率谱密度矩阵，然后通过对CSDM进行对折处理来抑制噪声、定频信号及其他干扰的影响，并将所有属于FH信号的hop(每一跳的驻留时间在时频图上持续的线段)从CSDM中筛选出来，最后用阵列信号处理中的到达方向估计理论在频域中估计出各个hop的方向参数，利用方位信息完成FH信号分离并得到FH信号的数目及其各自的参数集；●提出了一种确定FH信号检测门限的策略，该策略不仅使得检测门限能够通过理论计算得到，而且还显著地抑制了非跳频信号的干扰，从而能有效地检测出FH信号；●提出了一种基于宽带处理的短波FH信号盲检测和参数盲估计的实现方法，即首先利用宽带空间谱测向技术得到接收信号的DOA，然后采用宽带波束形成技术对特定方向进行空间滤波，实现多个信号的分离，最后分别提出了两种FH信号的盲检测和参数盲估计方法，第一种方法适用于空间某个特定方向上存在着几个驻留时间不同的恒跳速FH信号和其他干扰信号的混合信号，第二种方法适用于空间某个特定方向上仅含一个可变跳速的FH信号和噪声的混合信号；●将空间插值的概念和宽带波束形成技术结合起来，提出了一种基于频域处理的宽带恒定束宽的波束形成方法。

The results show that 154 species were found in the area,including 60 species of Polychaeta,30 of Crustacea,28 of Mollusca and 24 of Echinodermata;the dominant species are not very distinct,the relative important or common species are Listriolobus sp.,Xenophthalmus pinnotheroides White and Cossurella dimorpha Hartman.

本次调查共获得长江口附近海域大型底栖动物154种，其中多毛类环节动物60种，甲壳动物30种，软体动物28种，棘皮动物25种，其它类群动物11种。群落中优势种的地位都不明显，只有螠虫(Listriolobus sp。)、豆形短眼蟹(Xenophthalmus pinnotheroides White)、拟单指虫为相对重要的种类。

The glassiness barrier layer mixes glass dust and mill addition into slip glaze, 50-180 um barrier layer is prepared by painting slip glaze on the surface of stainless steel, components of the glass dust according to the percent by weight comprises SiO2 37-40, B2O3 11-14, one or two kinds of Na2O and K2O18-20, one or two kinds of BaO and SrO 3.5-6.5, one or two kinds of Al2O3 and Cr2O3 2.5-10.5, one or two kinds of residues such as CaO, CaF and Na3AlF6, and the mill addition comprises agglomerants such as kaolin, borax, sodium nitrite and the like, adhesive agents such as CMC, PVA and the like and water.

该玻璃质壁垒层是将玻璃粉和磨加物混合成釉浆，涂在不锈钢表面制备50-180μm涂层，玻璃粉的成分按重量百分比：37-40 SiO 2 ，11-14 B 2 O 3 ，18-20 Na 2 O、K 2 O中的一种或两种，3.5-6.5 BaO、SrO中的一种或两种，2.5-10.5 Al 2 O 3 、Cr 2 O 3 中的一种或两种，余量CaO、CaF、Na 3 AlF 6 中的一种或多种；磨加物包括高岭土、硼砂、亚硝酸钠等粘结剂、CMC、PVA等密着剂和水。

In this paper we reported the results of 4 antimony cyclic-mercaptides and 2 corresponding tincompounds and 1 organomercury compounds,3 stibonic acids and related compounds,4 bis(p-aminophenoxy)- thiaalkanes,4 EDTA-chelates of antimony,tin,mercury and bismuth,"TWSb", hexachloroethane,tetrachloroethylene and some other antimony,tin and mercury compounds.

本文报告32种有机化合物对于日本血吸虫病的动物实验治疗的结果，包括：二硫锑环状化合物4种及其相应的 Sn 化合物2种及 Hg 化合物1种、酸类3种、双硫间烷类化合物4种、EDTA 与 Sb，Sn，Hg 及 Bi4种螯合盐、"TWSb"、CCl_3—CCl_3、CCl_2=CCl_2以及一些其他 Sb，Sn 及 Hg 的衍生物。

Taking the fishery stocks status of no-overfishing in the coast of Guangdong in 1964～1965 as stock structure in good condition, according to the result of background survey of 16 artificial reefs area of Guangdong during 2002～2004, the historical change of stock structure of the coast of Guangdong had been studied, combined with some relative data, the species of enhancement for the artificial reefs area of Guangdong were put forward to choose: 38 species of fish, 13 species of shrimp, 4 species of lobster, 5 species of crab, 18 species of shellfish, 8 species of holothurian, 27 species of seaweed.

以1964～1965年广东沿海没有捕捞过度的渔业资源状况作为处于良好状态的资源结构，根据2002～2004年广东16个人工鱼礁区的渔业资源本底调查结果研究了广东沿海渔业资源结构的历史变动，结合有关资料，提出了广东人工鱼礁区可供选择的增殖放流种类为：鱼38种、虾13种、龙虾4种、蟹5种、贝18种、海参8种和海藻27种。

The orders with high species richness were Hymenoptera (168 species), Diptera (90 species), Coleoptera (44 species), Homoptera (26 species), Hemiptera (23 species), Araneida (18 species) and Lepidoptera (12 species).

棉田节肢动物物种较丰富的目为膜翅目(168种)、双翅目(90种)、鞘翅目(44种)、同翅目(26种)、半翅目(23种)、蜘蛛目(18种)和鳞翅目(12种)，棉田物种数最多的科为姬蜂科和姬小蜂科，分别有22和21个物种。

On the design of algorithms, a novel exact hierarchical delay analysis method for general circuits is proposed; based on the sensitization theorem for sequential circuits, an exact minimizing clocking method is proposed; based on Boolean process, a waveform simulation method considering interconnecting delay for logic circuit and a parallel waveform simulation method are proposed; a new method that transforms bit-level waveform polynomial to word-level polynomial model is proposed; a multiple valued synthesis algorithm based on multiple valued Boolean process and a wire-centered delay synthesis policy are proposed, in which timing planning, floorplanning, wire planning and optimal clock skew in early design are considered; a two-layers channel routing method for minimizing crosstalk under grid mode is proposed; based on the transition numbers theorems for waveform polynomial, a new method for generation of test with noise effects is proposed.

算法设计方面，提出了一种精确的通用电路层次化延时分析方法；基于时序电路的敏化定理提出时序电路最小时钟周期精确确定方法；提出基于Boolean过程论的考虑互连延迟的逻辑电路波形模拟方法，在分析了波形模拟适合并行化基础上，进一步提出一种并行波形模拟算法；提出一种将位级电路波形多项式描述转化成字级多项式描述的新方法；提出一种基于多值Boolean过程的多值电路综合算法以及一种将前期设计定时规划、前期设计的布局规划和线网结构化方法及低偏移的时钟分配等技术相结合的面向互连延时的综合策略；提出一种串绕最小化的网格模式下的双层通道布线方法；从波形多项式描述跳变数的定理出发提出了一种考虑噪声效应的测试生成新方法。

objective in order to exploit the natural resources of chinese herbs,the inhibitive effects of the compositions of28chinese herbs on the growth of8common bacteria in oral cavity were determined.methods sen-sitive test of these bacteria were carried out by mtt method.at the same time,chessboard dilution method was used for combined sensitive test.results the compositions of28chinese herbs can inhibit the growth of5bacteria in dif-ferent levels,but the effects on other3bacteria are not obvious.quercetin and usnic acid have better effects on5bacteria than other26herbs compositions,with mic0.03125～0.125mg/ml and0.0156～0.0625mg/ml.conclu-sion quercetin and usnic acid can inhibit the5bacteria growth more effectively than other26herbs compositions.

目的 测试28种中药有效成分抑制8种口腔常见致病菌的作用，为抗菌中药有效成分用于口腔感染性疾病的防治做一些探讨。方法选择28种有抗菌作用的中药的有效成分，采用噻唑蓝法对8种口腔常见致病菌作药物敏感实验，同时采用液体棋盘稀释法进行联合药敏实验。结果 28种中药有效成分对3种牙周细菌抑制作用不明显，对另5种口腔常见细菌有一定的抑制作用，其中松萝酸和槲皮素有较强的抑菌作用，mic值分别在0.0156～0.0625mg/ml和0.3125～0.125mg/ml之间。结论所选28种中药成份中，松萝酸和槲皮素具有较强的抑菌作用。

Aroma components, including esters, alcohols , aldehydes, ketones, acids , acetals , and other compounds which respectively represented 24.6%, 14.5%, 11.6%, 17.4%, 8.70%, 17.4, 5.80% of the total aroma components were identified in 'Rosa ' strawberry fruit. and they.

栽培草莓&罗莎&成熟果实中共鉴定出69种芳香成分，主要成分为酯类化合物(17种)，占总数的24.6%，醇类化合物(10种)占14.5%，醛类化合物(8种)占11.6%，及酮类化合物(12种)占17.4%、酸类化合物(6种)占8.70%，烷烃类化合物(12种)占17.4%，其它类化合物(4种)占5.80%。2。

The study indicates that Geodrassus diguitusiformis Hu, 2001 should be transferred to the genus Trachelas; Clubiona heteroducta Zhang et Yin, 1998 and Clubiona xiningensis Hu, 2001 are synonymized with Clubiona gongi Zhang et al., 1997 and Clubiona neglecta O.P.

管巢蛛科、圆颚蛛科、光盔蛛科(圆颚蛛和光盔蛛以前是管巢蛛的一部分，后被分出)目前全球分别已知15属527种、75属831种和32属239种；中国以往记述分别为1属78种(另有3疑问种)、7属18种(另有3疑问种)、和4属19种。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了