查询词典 for a time
- 与 for a time 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Hold a post qualification: 1, have poineering intense emotion, have the impulse that solves all problems; 2, have deep love for a technology, do not make development hand crawly; 3, the product that has deep love for oneself to develop, hope product can affect more and more people on the world; 4, love communication, like to cooperate to develop with others; 5, have fun at to Flex/Flash, love discussion, very be afraid that oneself do not have progress; 6, full-time job or full-time exercitation.
任职资格: 1、有创业激情,有解决所有问题的冲动; 2、热爱技术,不让开发手就痒痒; 3、热爱自己开发的产品,希望产品能影响世界上越来越多的人; 4、爱交流,喜欢和别人配合来开发; 5、对Flex/Flash有兴趣,爱讨论,很怕自己没有进步; 6、全职工作或全职实习。
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Hold a post qualification: 1, have poineering intense emotion, have the impulse that solves all problems; 2, have deep love for a technology, do not make development hand crawly; 3, the product that has deep love for oneself to develop, hope product can affect more and more people on the world; 4, love communication, like to cooperate to develop with others; 5, have fun at to Java, HTML, CSS, Javascript, love discussion, very be afraid that oneself do not have progress; 6, full-time job or full-time exercitation.
任职资格: 1、有创业激情,有解决所有问题的冲动; 2、热爱技术,不让开发手就痒痒; 3、热爱自己开发的产品,希望产品能影响世界上越来越多的人; 4、爱交流,喜欢和别人配合来开发; 5、对Java、HTML、CSS、javascript有兴趣,爱讨论,很怕自己没有进步; 6、全职工作或全职实习。
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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。
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At the same time, the first 8 focus quantities, center conditions and center integral are given for a cubic system and a computational example of cubic systems with 10 saddle quantities presented for the first time.
同时给出了一类三次系统的前8个焦点量及中心条件和中心积分,首次给出了一个具10阶细鞍点的三次系统计算实例。
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The idea of our algorithm is equivalence class classification for continuous time is constrained by a relation between the remaining delay time of triggering event and time value of DTA clocks or the remaining delay time of other events.
和同类算法相比,我们的算法用更广义的延迟时间等价类取代同类算法中受事件先后顺序约束的单元延迟时间等价类,并且不必生成那些仅仅因为时间流逝而产生的状态等价类。
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I hope to live for a long time, long see an own great-grandson to the ability, but fear to live again for a long time, dare not to face oneself full is the face of crease.
我希望能活到很久,久到能看到自己的曾孙,但又害怕活很久,不敢面对自己满是皱纹的脸。
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Further said that, the present world trade pattern had decided occupies for a long time the trade deficit country incapably after the domestic currency (no matter it whether belongs to world currency) to revalue the exportation growth which the realization sends, on the contrary, occupies the trade surplus country to have ability for a long time the import growth and following after which sends first through the domestic currency revaluation realization sends the exportation growth.
进一步说,目前的世界贸易格局决定了长期处在贸易逆差的国家无力通过本国货币(不论其是否属于世界货币)升值实现后发的出口增长,相反,长期处在贸易顺差的国家则有能力通过本国货币升值实现先发的进口增长和随之而来的后发出口增长。
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First of all, this study will be multi-walled carbon nanotubes by chemical oxidation process purified so it can be modified to deal with than the purification of purity before the modified 5 wt%, more than 1.89 times the surface area to increase the surface potential decrease of about 10 ~ 20 mV and the surface functional base (-COOH and-OH) to increase 1.45 times, and then the control technology of electroless preparation parameters include: analysis of plating time, plating analysis of temperature, metal ions in solution than the (Fe2+/ Ni2+), bath pH and the added value of dispersion Agent and other research towards Fe-Ni particles to increase the iron content and Fe-Ni particles spread in the MWCNT upper fixed targets,the results found that when the parameters for the preparation of 50 ℃, pH10, do not add dispersant, metal ions than the solution (Fe2 +/ Ni2 +) 7, the highest iron content can be Fe = 40.55 at%(flat iron content 111.17 mg / g) of nanocomposites Fe-Ni/CNT, then for a series of the nature of its analysis, the final evaluation Fe-Ni/CNT nanocomposites were processed on the effectiveness of the application of mixed pollutants, the results showed that in 120 minutes at the same time when Adsorption of heavy metal ions lead nitrate 10 ppm, selenium heavy metal ion degradation of 1 ppm and orange azo dye AO7 50 ppm standard of effluents, and after a total Fe-Ni nano-particles to SEM / EDS analysis of more than 50% still remaining.
本研究首先将多壁奈米碳管以化学氧化法做纯化改质处理能使其纯度较纯化改质前提高5 wt%、比表面积提高1.89倍、表面电位下降约10~20 mV以及表面官能基提高1.45倍,再控制无电镀技术之制备参数包括:析镀时间、析镀温度,镀液中金属离子比(Fe2+/Ni2+)、镀液pH值及是否添加分散剂等,研究朝提高Fe-Ni粒子的含铁量与Fe-Ni粒子散布固定在MWCNT上等目标进行,研究结果发现当制备参数为50 ℃、pH10、不添加分散剂、镀液金属离子比(Fe2+/Ni2+)7时,可得到最高铁含量Fe = 40.55 at%(单位铁含量111.17 mg/g)之奈米复合材料Fe-Ni/CNT,接著对其作一系列性质分析,最后评估奈米复合材料Fe-Ni/CNT对共处理混合污染物之应用效益,结果显示其在120分钟时能够同时吸附重金属硝酸铅离子10 ppm、重金属硒酸根离子1 ppm及降解偶氮橘色染料AO7 50 ppm达放流水标准,且共处理后奈米Fe-Ni粒子以SEM/EDS分析仍剩余50 %以上。
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Today, as she munched meditatively, she was telling herself, not for the first time, that there was a time and place for everything – and that the office was definitely not the place for imitations of the boss's wife.
今天当她一边沉思一边用力咬动下颚时,她告诫自己:做事要看时间地点-办公室绝不是模仿老板娘的地方。
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Breakfast time for most people. Time for a nightcap for us!
那是大多数人的早饭时间,但却是我们临睡前的喝酒时间!
- 相关中文对照歌词
- A Time For Us
- A Time For Love
- Time For A Sign
- A Time For Love
- A Time For Yohe
- A Time For Letting Go
- A Long Time For A Little While
- We're Not Here For A Long Time (We're Here For A Good Time)
- It's A Good Time (For A Good Time)
- We're Here For A Good Time (Not A Long Time)
- 推荐网络例句
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In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.
。但是,在否定句或疑问句里,这种带有"do"的方法表达的效果却没有什么强调的意思。
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Go down on one's knees;kneel down
屈膝跪下。。。下跪祈祷
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Nusa lembongan : Bali's sister island, coral and sand beaches, crystal clear water, surfing.
Nusa Dua :豪华度假村,冲浪和潜水,沙滩,水晶般晶莹剔透的水,网络冲浪。