sample n. 1.样品,货样。 2.标本;榜样,实例。 3.【统计】典型取样,抽检查。 4.【电讯】信号瞬时值。 5.【冶金】 〔 pl. 〕 锌华。 That is a fair sample of his manners. 那就是他的典型态度。 a light sample 光脉冲。 up to sample 1. 和样品一样[相符]。 2. 可以接受的,可以同意的。 vt. 从…取样,从…抽样;提供;货样;对…进行抽样检查。
The gas sensor array testing system comprises the automated flow - injection apparatus , the data acquisition device and the pc software . sample injection and data acquisition are realized automatically through real time pc control . thereby it assures the reproducibility and reliability of testing 研制成功的气体传感器阵列智能测试系统由计算机实时控制,可以实现测试气体的自动进样和数据采集与处理,提高了测试的重复性和可靠性。
As the key of the sample injection , a digital control instrument of mass flow controller ( mfc ) , which can work in online and offline mode , was designed . it can give 4 flow signals accurately at the same time . the concentration and flux of the sample gas can be set by the instrument software 进样装置的核心是自行设计开发的新型流量控制仪,该仪器采用数字接口,可以以联机和脱机方式工作,能够同时快速准确地输出4路流量控制信号,对测试气体的流量和浓度进行设定。
A mixture of three amino acids ( arg , gly , glu ) labeled with fluorescein isothiocyanate ( fitc ) was separated in pdms microfluidic chip , the separation voltage is 200v / cm , the separation time is less than 120 seconds ; according to ccd fluorescence images , two distinct physical processes - stacking and destacking during sample injection were studied qualitatively ; rhodamine b , a kind of temperature - dependent fluorescence dye , was used as probe to develop a temperature - fluorescence intensity equation , then temperature - color map in microchannels was constructed , and temperature trait in microchannels on the pdms microfluidic chip was analysed . according to the results , we conclude that the electric field applied to the pdms microfluidic chip should not exceed 400v / cm 利用pdms微流控芯片对fitc标记的精氨酸、甘氨酸、谷氨酸混合物进行了电泳分离,分离电压为200v cm ,分离时间不到120秒;通过拍到的荧光显微图像对电泳注样过程中复杂的样品分子积聚与解聚现象作定性的分析;以荧光染料rhodamineb为温度荧光探针,建立了pdms微流控芯片上的温度-荧光强度的关系公式,并利用matlab图像处理工具箱构建出微流体沟道内的温度色图,对pdms微流控芯片的微流道温度特性进行了分析,根据实验结果,我们认为对于pdms微流控芯片来说,在进行需要外加电场作用的试验时,外加电场不应超过400v cm 。