Excel中双击鼠标与Shift键的应用

Microsoft Excel简称Excel是微软公司的办公软件Microsoft office的组件之一,是由Microsoft为Windows和Apple Macintosh操作系统的电脑而编写和运行的一款试算表软件。Excel是微软办公套装软件的一个重要的组成部分,它可以进行各种数据的处理、统计分析和辅助决策操作,广泛地应用于管理、统计财经、金融等众多领域。使用Microsoft Excel可以执行计算、分析信息并管理电子表格或网页中的列表。本文针对Excel中双击鼠标与Shift键的应用,作了分析与总结。     

Excel 5.0的使用基础

一、Excel电子表格 Excel电子表格作为一种计算机应用软件,能为用户迅速、准确地处理数据,它的最大特点之一是可以采用公式的方法自动处理数据。例如:某钢厂的钢铁产量报表,由逐月产量与全年产量构成。当最近一个月的钢铁产量统计产生以后,全年钢铁产量的累计值也应做相应改变,这项工作在传统的文本式表格中只能靠手工完成计算。然而电子表格通过使用公式,可以自动完成钢铁产量累计值的     

永中Office初体验

10月26日,国人期盼已久的永中Office1.0版正式发布。永中Office采用JAVA语言,在所有支持JAVA虚拟机的操作系统上均可运行,是真正意义上的跨操作系统平台软件。它具备文字处理(Word)、电子表格(Excel)、简报制作(PowerPoint)三大功能,并提供多媒体浏览、图片浏览和网页转换等功能。通过永中Offce用产便可以轻松地在同一个界面下同时可以处理不同的数据对象,不仅可以轻松读取Excel,Word,Power Point文件,又同时支持存取HTML和XML格式文件……哇,永中Office的好处真是多得都说不过来了,下面我们还是通过实际操作来体验一下吧！     

一种基于虚拟化哈佛体系结构的Rootkit技术

通过修改操作系统内核的方式实现了哈佛内存体系结构的虚拟化,在操作系统层分离了对Rootkit代码的取指和数据操作,从而可以绕开内存扫描程序,实现攻击代码的隐藏.文中详细讨论了虚拟化哈佛体系结构的具体实现,并分析了它的有效性和对操作系统各个方面的影响.实验表明:该方法能很好地隐藏攻击代码,对操作系统的正常工作影响十分轻微.     

保护电子表格

当电子表格文档资料(.XLS文件)存放在硬盘上时,很多人都能打开并操作,如果单元格内还设置了大量运算公式,原始数据一旦被破坏,会带来很多的麻烦,应根据不同情况对电子表格的单元格、工作表,工作薄等分级进行保护. 　　……     

EXCEL函数在教务工作中的实际应用

为了彻底解决教务系统工作从以往的纯手工处理数据与分析评价阶段转型为现代化的办公过程,我们利用Excel2007电子表格功能强大的函数分析特点,将其合理有效地运用在现代化的教务工作之中。综合教务工作的实际需要,原始手工数据处理阶段不仅存在工作量大、效率低并且极容易出错的缺点,通过对数据处理到统计计算结果输出过程进行了详细的分析归纳,使用EXCEL函数便可以快速提高工作质量和效率,实际应用效果显著。     

探讨财务管理工作中Excel的运用

Excel软件拥有直观的操作界面,各种表格使用起来,进行求和或求平均数等操作十分方便。Excel是目前特别受大众欢迎的办公室软件Microsoft office的一个重要的组件,公司的财务人员在使用Excel电子表格进行财务管理时,可以利用其强大处理数据的功能,满足财务管理各个环节数据的不同要求。EXCEL软件可以对财务的各项支出、收入部分进行详细的统计计算,实现财务管理的高效和透明。本文针对财务管理工作中的Excel软件运用方法进行探讨,提出几点提高财会人员工作效率的可行性措施。     

电子表格中技巧的探讨与应用

电子表格中有许多操作技巧能提升数据库管理工作的效率和质量。本文重点分析电子表格操作中应用较多的格式化、公式和数据分析中的一些技巧。     

基于单片机的钢筋剪切机控制系统分析

单片机的运作原理比较简单,应用范围也十分广泛,很多领域中都使用它作为核心操作系统,钢筋剪切机的控制系统也在趋向于使用单片机来操作.这不仅可以降低生产成本,扩大生产规模,还能有助于提高企业的生产效率.本文主要分析了基于单片机的钢筋剪切机的控制系统的工作原理和技术分析,以期能够为相关实践和研究提供理论参考.     

利用中文Excel 5.0实现标准化考试的阅卷评分及统计分析

Microsoft公司的中文Excel 5.0是目前Windows环境下最受欢迎、功能最为完备的电子表格软件之一,它集数据管理、制表、绘图于一身,既可作为数据库使用,又可完成多种多样的表格和图表设计,进行复杂的数据计算与分析,其使用环境赏心悦目,操作方便、快捷。我们可以利用Excel 5.0的强大功能来实现标准化试卷的阅卷、评分与试卷分析等繁杂的工作。整个过程,可以分为建立数据表、阅卷评分操作、统计分析等几个方面。     

电子工单处理系统的关键技术

本文分析了电子工单处理系统的任务和特点。根据工单处理过程的多样性和易变性，提出了一种规则驱动的分布式工单处理系统，并对该系统的软件体系结构、工单处理中的规则以及工单处理的瓶颈和对策给予了介绍。     

一款光控频率选择表面的器件开关特性研究

研究了一款光敏电阻型开关,用以实现光控有源频率选择表面(Optically Controlled Active Frequency Selective Surface, OCAFSS)。该开关在LED等光源激励下亮态阻值可小于20Ω,暗态值接近0.2 MΩ,并随着光源强度的变化阻值可调。通过对光敏电阻内部结构的分析以及借鉴硅片型光控微波开关的建模经验,使用CST等电磁仿真软件对该开关进行了建模与仿真。经实物加工和测试,所得测试结果与仿真结果一致,显示出该光敏电阻在频段0.1~1 GHz可切换亮/暗状态,其S21参数分别为-3 dB以上和-10 dB以下,对应的传输信号可以通过或被阻挡;但随着频率的升高,开关效果不再明显,当频率大于2 GHz以后,亮暗态S21均在-7 dB以上,不再具备开关性能。对该光敏电阻的开关特性研究表明,可将其使用于特定频段OCAFSS。为验证这一结论的正确性,我们制作了一款该使用频段的吸波型OCAFSS,最终测试结果与预期值符合。     

Phase-induced intensity noise in digital incoherent all-optical tapped-delay line systems

In this paper, the authors analyze conditions under which they can be certain on the intensity addition of a given device, such as tapped-delay lines, used in digital incoherent all-optical communication systems. A general expression for phase-induced intensity noise that is applicable to all types of semiconductor lasers is derived by defining an optical self-SNR expression that can be used to analyze and measure phase-induced intensity noise. The result shows that in order to have a minimal phase-induced intensity noise in most digital optical incoherent systems, a large optical self-SNR, e.g., 20 dB or more, is needed. This in turn is shown to place a limit on the maximum rate of processing in a typical incoherent optical system even neglecting the bandwidth limitation of the photodetector. Furthermore, it is shown that the maximum rate of processing depends on the laser autocorrelation function and laser coherence time.     

A general repair, proportional-hazards, framework to model complex repairable systems

A system (machine) is observed to operate in 1 of 2 modes. The most common mode is loaded (or regular) operation. Occasionally the system is placed in an unloaded state, wherein while the system is mechanically still operating, it is assumed that the failure intensity is lower due to this reduction in operating intensity. A proportional hazards framework is used to capture this potential reduction in failure intensity due to switching of operating modes. In either operating condition, analyzed maintenance-records indicate that the system was occasionally shut down, and either a minor or a major repair was undertaken. Furthermore, despite such repairs, it is observed that both modes of operation (loaded or unloaded) resulted in random failures. On failure, 1 of 3 actions are taken: (1) failures were minimally repaired, (2) given a minor repair, or (3) given a major repair. Both minor and major repairs are assumed to impact the intensity following a virtual age process of the general form proposed by Kijima. This research develops a statistical model of such an operating/maintenance environment. Its purpose is to quantify the impacts of performing these repair actions on the failure intensities. Field data from an industrial-setting demonstrate that appropriate parameter estimates for such multiple phenomena can be obtained. Providing a richer, more detailed, modeling of the failure intensity of a system incorporating both operating conditions and repair effects has important ramifications for maintenance planning. This paper refers to related research, in which optimal timing of maintenance repairs depends fundamentally on the failure rate of the system.     

镍基单晶高温合金水导激光钻孔工艺特性研究

为了探究不同激光功率及扫描速度下水导激光加工技术对镍基单晶高温合金加工微孔的影响规律及规律形成机理。使用自主研发的水导激光加工平台对镍基单晶高温合金CMSX-4在不同激光功率及扫描速度下进行1mm微孔的加工。然后采用白光干涉仪、扫描电子显微镜和Vision64软件获得微孔加工时间、孔径、圆度、锥度及重铸层厚度随不同激光功率及扫描速度的变化规律,并研究变化规律的形成机理。结果表明,加工时间、锥度及重铸层厚度与激光能量强度有关。随着激光能量强度的增大,加工时间缩短,锥度变小,重铸层厚度变小。孔径和圆度受激光能量强度及其在材料表面分布的影响。仅当激光能量作用范围控制在水束直径范围下时,孔径及圆度相应获得较好的加工质量。     

Intensity mappings within the context of near-sensor imageprocessing

In the original near-sensor image processing (NSIP) concept, the intensity level for an individual sensor element is mapped onto the time axis so that the time to reach the threshold is inversely proportional to the intensity. In many cases this is favorable, in some cases there is a need for another mapping between time and intensity. We show that such mappings can be achieved by either inserting delays or by varying the threshold voltage. The result is that to achieve a linear mapping it is much more favorable to use a variable threshold since the processing power of the sensor is then better utilized. An interesting result, when it comes to adaptive mapping, is that the traditionally time consuming operation histogram equalization can be accomplished almost for free in the NSIP concept. We also show that other histogram-based, i.e., data-dependent, mapping can be easily implemented.     

基于IMG红外图像的编码破解与格式转换

红外热像仪常见的图像格式为IMG,其编码规则有别于通常意义下的IMG图像,经研究发现:图像文件中保存每个像素点信息的数据(本文中称其为像素值)是随着该点的实际温度值单调递增的:利用神经网络得出像素点的实际温度与像素值间的函数关系,仿真误差低于0. 0001;据此构造温度值与灰度色彩的非线性关系,本文最后根据BMP图的编码规则,将红外热图转换成Windows下通用的图像格式,从而突破了热像仪器配套软件的禁锢,又可以得到图像最原始的温度信息,为进一步的红外图像处理打下了基础。     

FD MOS SOI circuit to enhance the ratio of illuminated to dark current of a co-integrated a-Si:H photodiode

In this paper we first present the integration of amorphous silicon photodiodes with a fully depleted silicon on isolator (FD SOI) MOSFET circuit. Taking the advantage of the better subthreshold characteristic of FD SOI MOSFETs with respect to bulk devices, a very simple SOI circuit integrated with the amorphous silicon photodiode is presented to significantly improve the ratio of the circuit output current when the diode is illuminated to when it is not. The use of one additional reference source voltage to adjust the operating point of the photodiode, allows to obtain a very significant increase in this current ratio, much higher than what can be obtained using a simple diode. Circuit solutions used to amplify the diode current under illumination are usually more complicated and involve a capacitor or more transistors than the circuit we present. All the other properties of the photodetector, as its spectral characteristic and linear dependence of detection with light intensity are maintained. The circuit can also be used in conjunction with other circuits for further amplification and/or processing.     

运行参数对SPT器壁腐蚀影响的光谱诊断

影响稳态等离子发动机（简称＂SPT＂）器壁腐蚀的因素很多：鞘层电势、器壁形貌、离子轰击的能量分布等,利用数值模拟的方法研究腐蚀情况比较困难,计算结果和实验结果相差较大。本文基于发射光谱法,利用Avaspace光栅光谱仪对SPT通道器壁特征元素的谱线进行分析。通过测量不同质量流量和放电电压下的陶瓷器壁特征元素谱线强度随时间的变化,结合理论分析得出不同运行参数下发动机器壁腐蚀速率变化的规律。     

一种基于PCI9656的64位PCI高速

介绍了PCI9656的内部硬件结构,重点说明了基于PCI9656实现的采集卡的硬件配置及时序控制,最后简单介绍了采集卡驱动程序的设计与实现。该采集卡与以往的同类采集卡相比,提高了采集速率,可用于32/64位系统环境,实现信号处理检前数据采集。