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l data collection
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     DATA
     数据
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     data sections.
     data块的DES加密过程.
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     data were incomplete;
     两名专家独立进行资料的选入及剔除。
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     Climatological Data
     中国气候资料
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     The Collection
     搜集证据
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Electrochemical in situ step-scan t ime-resolved microscop e FTIR spectroscopy(in situ SS-TR-MFTIRS )was succes sively established,for t he first time in the present work,by u sing a step-s can FTIR in-strument (Nexus 870FTIR spectrometer)and an IR microscope(IR-plane advantage microscope).A homemade signal synchronizer was used to gener ate polarization potential that is in accordance with the signal-time-sequence of step-scan time-resolved spectra l data collection.Due to the use of a n a nostructured...

Electrochemical in situ step-scan t ime-resolved microscop e FTIR spectroscopy(in situ SS-TR-MFTIRS )was succes sively established,for t he first time in the present work,by u sing a step-s can FTIR in-strument (Nexus 870FTIR spectrometer)and an IR microscope(IR-plane advantage microscope).A homemade signal synchronizer was used to gener ate polarization potential that is in accordance with the signal-time-sequence of step-scan time-resolved spectra l data collection.Due to the use of a n a nostructured microelectrode of Pt and the enhancement of IR absorption,a chara cter of abnormal infrared effects o f the nanostructured Pt surface,IR d e-ter mination sensitivity of surface species was significantly increase d,and the ra te of responding to a pola rizing potential of electrode surface in a t hin-lay er IR cell was remarkably imp roved.Adsorption of CO on nanostruc-tured Pt mic roelectrode(?=0.2mm)in sulfuric acid solutions was investigated by using the present new tech-nique,and a spectral time-resolution as fast as 50ìs has been achieved.From the variation versus t of the band center of linear-bon ded CO(see Fig.7)that is measured from in situ SS-TR-MFTIR spectra,the ce ll constant (?=R l C d )of an electrochemical thin-layer IR cel l of external reflection mode,wh ich is employed widely in studies of electrochemical in situ IR spectroscopy,ha s been determined to be 0.65ms.In comparison with the?of 40ms for a conv entional Pt disk ele ctrode(?=6.0mm),the use of a Pt microelectrode has re duced dra-matically the thin-layer IR cell constant to about 61times.The results o btained in the current paper is of im-portance in illustrating the s uccess of establishing the in situ SS-TR-MFTIRS,and demonstrating th e powerf ul capability of the in situ SS-TR-MFTIRS for studies of fast dynamic process es of electrode and kinetics of reac-tions taking place at solid /liquid i nte rfaces as well.

结合步进扫描傅立叶变换红外光谱仪和红外显微镜,建立了电化学原位步进扫描时间分辨显微镜FTIR反射光谱.采用微电极和利用纳米结构表面的异常红外效应,显著提高表面吸附物种的红外检测灵敏度和红外电极表面对极化电位的响应速度,使广泛应用的外反射型薄层红外电解池的时间常数(τ=R1Cd)从使用常规盘电极的约40ms降低到0.65ms.研究了酸性介质中CO在Pt电极上的吸附过程,谱图的时间分辨率达50μs.

With the software kit VtoolsD of the NUMEGA Software Inc.to develop VxD,a virtual device driver for PCL-818L data -collection card is developed.The VxD is used to take charg e of control and communication of the physical device,the DLL is the interface prog ramme between the virtual device driver and the application.The ap-plication can control the data-collection card throug h the DLL.

采用NUMEGASoftware公司出品的VxD(virtualdevicedriver)开发软件包VtoolsD,开发出了DMA方式下的PCL-818L数据采集卡虚拟设备驱动程序。其中VxD部分完成对物理设备的直接控制和通讯,DLL部分完成设备驱动程序(Ring0)与应用程序(Ring3)之间的通讯接口,应用程序只需调用DLL就可以完成对物理设备的控制。

With the software kit VtoolsD of the numega Software Inc. to develop VxD, a virtual device driver for PCL-818L data-collection card is developed. The VxD is used to take charge of control and communication of the physical device, the DLL is the interface programme between the virtual device driver and the application. The application can control the data-collection card through the DLL.

采用NUMEGA Software公司出品的VxD(virtual devicedriver)开发软件包VtoolsD,开发出了DMA方式下的PCL_818L数据采集卡虚拟设备驱动程序。其中VxD部分完成对物理设备的直接控制和通讯,DLL部分完成设备驱动程序(RingO)与应用程序(Ring3)之间的通讯接口,应用程序只需调用DLL就可以完成对物理设备的控制。

 
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