采集
- 与 采集 相关的网络例句 [注:此内容来源于网络,仅供参考]
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A set of methods for borehole and surface combined exploration acquisition,processing and interpretation were obtained.
探索出了一套较为合理的井地联合的技术设计思路,以及井地联合采集参数的论证方法,采集方法与处理解释技术。
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It has the connection richly, probability, and using CAN characteristics and so on bussing technique, both can realize the bench test data acquisition, and can the full vehicle experiment completely the need, to study and develops the new automatic transmission to provide the important tentative data gathering installment.
它具有接口丰富、可移植性强,并运用CAN总线技术等特点,既能实现台架试验数据采集,又能满足实车试验的需要,为研究和开发新型自动变速器提供重要的试验数据采集装置。
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Because the temperature along the pipeline is not a constant, it changes the velocity of the negative-pressure-wave; the Romberg algorithm of numeric integral and the searching for algorithm are emloyed to locate the leakage.Multi-scale decomposition and reconstruction of wavelet transform is applied to filter the noise of negative-pressure-wave, which was brought by leakage. With the capacity to detect the signal singularity fast and accurately, wavelet transform was used to catch the break point of pressure signal. The work improved the accuracy of Δt in location formula, and the location accuracy is improved.
利用小波变换的多分辨分析和重构技术,对采集到的管道发生泄漏时产生的负压波信号进行了消噪处理;并利用小波变换技术对信号奇异点快速、准确的识别能力,对经过消噪处理后的负压波信号进行了奇异点捕捉,准确确定了定位公式中上、下游站点采集到的负压波奇异点的时间差△t,从而提高了定位的精度。
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At the same time, combining with the actual condition of delivery pipeline of our country and some prevalent leak detection and location methods, this paper raised a method, which is based on wavelet analysis and negative- pressure-wave to detect and locate the leakage. Jobs in the paper are as follows:As affected by gas density, pressure, specific heat and pipe material, the velocity of negative-pressure-wave improved depending on the energy conservation. At one time, taking the affection of velocity of gas flow, the location formula was modified in some degree.When locating the leaks with location formula, the iterative approach algorithm was adopted as a new method to increase the location accuracy level of system.Multi-scale decomposition and reconstruction of wavelet transform is utilized to filter the noise of negative-pressure-wave, which was brought by leakage. With the capacity to detect the signal singularity fast and accurately, wavelet transform was used to catch the break point of pressure signal. The work improved the accuracy of At in location formula, accordingly improved the location accuracy.Wavelet is a suitable tool for signal analysis. The distinct character is that the mother-wavelet is of optional. That means choosing different mother-wavelet will get different analysis result. So we studied how to choose mother-wavelet and its scale for signal singularity detection. The method is to choose a wavelet by regularities of the wavelet and the signal.Finally, a plan, which bases on SCADA system for inspection and detection of natural gas leakage, is proposed in the article.
其中,主要进行了以下几方面的工作:针对泄漏产生的负压波在管道中的传播速度受媒介的密度、压力、比热及材质等因素的影响,而非声波在空气中传播的速度,本文利用能量守恒原理,对其进行了修正;考虑到管内气体流速对压力波速的影响,对原始的负压波定位公式进行了一定程度的改进,并在利用定位公式进行泄漏点定位时采用逐步迭代逼近算法,提高了系统的定位精度;利用小波变换的多分辨率分解和重构技术,对采集到的管道发生泄漏时产生的负压波信号进行了降噪处理;并利用小波变换技术对信号奇异点的快速、准确的识别能力,对经上述消噪后的负压波信号进行了奇异点捕捉,精确捕捉的结果提高了定位公式中上下游站点采集到的负压波奇异点的时间差△t的精度,从而进一步提高了定位的精度;考虑到小波变换是一种基波可变的信号分析工具,也就是说,不同的小波基波对信号分析的结果将有很大差别,这势必影响最终的处理结果,因此,我们又对比分析了本课题中小波基及尺度的选择问题,依据规则性系数相似性原理对母小波的选择进行了探索性研究;最后,还提出了基于SCADA的泄漏检测与定位系统的软件开发构想及系统的嵌入方案。
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From the results of linear analysis, it can be found that most of the peoples heart beat rate centralize at 70-80 times/min.
本文采集了15例年龄在20-30岁之间的健康青年人的心率信号,采集时间为30分钟左右。
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Firstly, oscilloscope control system based on GPIB technique is presented with friendly operation environment to the HIFU system, and it uses multithreading technique in programming to realize real-time recording and display of the signal; Secondly, temperature collection and data recording system is designed, which also could get real-time recording and display of the 16 channel temperature signal, and it's believed to be of great use for further experiments of the HIFU system; Thirdly, multiple ultrasonic phased array's phase shifter is designed,which could provide 8-bit phase control in a range of frequency where the centrical frequency is 1MHZ. Fourthly, the module of serial communication is realized to insure the communication between devices and computer, including both synchronous and asynchronous communication, which enables the system to transfer data reliably and stably; Finally, the module of digital quantity control is accomplished, which provide for upper application the consistent solution to the control of exterior devices via digital interface. It can get or set the devices state using interrupt mode to receive input signal or send output signal.
主要有以下几个方面:设计了基于GPIB的示波器控制系统,给课题的研究工作提供了一个良好的环境,它采用了多线程编程的方法,能够较好的实时显示当前波形并记录数据;设计了温度采集和数据记录系统,能够对16路温度信号进行并行同步的实时采集,用于HIFU剂量学研究中温度场检测和医疗评价;设计了相控阵相位延时电路并且通过调试,满足了课题的相位控制的要求,在中心频率为1MHZ左右的频率范围内都能够达到8-bit相位控制;实现了串口通讯模块,为各项设备与计算机之间的通讯提供保证,它提供同步和异步的通讯能力,使系统能够可靠稳定的传输数据;建立了数字量控制模块,为上层应用程序提供一致的方法使用数字接口控制外部仪器,它使用中断的方式来接收输入或输出设定的开关量信号,从而得到或设定各种仪器的状态。
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This paper mainly discusses the designing scheme and the realization method of the information processing board—the data collecting and processing centrum in the system,including hardware and software.
本文着重分析了系统中数据采集与处理的中枢—信息处理板的设计方案和实现方法,包括硬件和软件两方面。硬件主要包括陀螺数据、加速度计数据、温度数据的采集电路,外部通讯接口电路和用户程序引导装载电路的实现。
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And a new method of remote data acquisition using CGI is presented.
并探讨了基于网络的数据采集,提出了一种使用CGI技术实现的远程数据采集方法。
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Chigger mite paraffin section were made from larva on natural mice, free larva and reared nymph and examined by IFAT.
将自然界采集的鼠体恙螨幼虫、小黑板采集的游离恙螨幼虫和饲养孵化出的若虫进行石腊包埋切片,应用IFAT检测。
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The phytoplasmas diseases were investigated in 30 counties and cities of 10 areas in Yunnan Province. There are 12 phytoplasma diseases, including paulownia witches-broom,chinaberry witches-broom, cactus witches-broom, christmas cactus witches-broom, orange little leaf, petunia flat stem and so on were indentified using PCR with universal primers, which amplified phytoplasma 16SrRNA gene and/or ribosomal protein genes. So the kind of phytoplasma diseases in Yunnnan Province were understood. Identified the characteristic of 16SrRNA and rp gene of phytoplasma and the kind, classification and genitic relativity of these strains using RFLP, clonging and sequence analysis (nearly 20 full-length sequences of phytoplasma 16SrRNA and/or rp gene were submitted in GenBank ); The phytoplasma strains isolated from herbage plants were conserved in storeroom. 9 articles were published in the key journals of China and 1 technique invention patent was applied. The net-page about phytoplasma disease was established. 4 graduate student were bringed up.
对云南省10个地区的30余个县市地区进行了植原体病害的调查采集工作;采用植原体16SrRNA基因通用引物(R16mF2/R16mR1及R16F2/R16R2)和/或植原体核糖体蛋白基因引物(rpF1/R1)对所采集到的病害标样总DNA进行PCR扩增,根据植原体特异扩增条带的出现,共鉴定出泡桐丛枝、苦楝丛枝、仙人掌丛枝、蟹爪兰丛枝、柑桔小叶、矮牵牛扁茎等12种植原体病害,初步明确了云南省植原体病害的种类;通过RFLP技术、克隆及测序技术获得其16SrRNA及部分核糖体蛋白基因的近全长序列(已在GenBank中共登录近20余个相关序列),通过序列比较分析,明确了上述植原体株系中这两个基因的特征并确定了云南省植原体株系的种类、分类地位及遗传相关性;对一些发生在草本植物上的植原体进行了株系保存;在国内核心期刊及一般期刊发表研究论文 9 篇,申请技术发明专利1项;初步建立了有关植原体病害的网页;培养研究生4名。
- 推荐网络例句
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We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.
索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称;三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起,称之为挽歌体诗人或者史诗诗人,他们被称为诗人,似乎只是因为遵守格律写作,而非他们作品的模仿本质。
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The relationship between communicative competence and grammar teaching should be that of the ends and the means.
交际能力和语法的关系应该是目标与途径的关系。
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This is not paper type of business,it's people business,with such huge money involved.
这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。