chapter 3  data types and file formats

... today • and the types of cryptanalytic attacks that must be anticipated Trang 15Classical Substitution Ciphers• The two basic building blocks of all encryption technique are substitution and transposition ... million keys per microsecond • And this performance level, DES can no longer be considered computationally secure. Trang 14Classical Substitution Ciphers• In this section and the next, we examine ... various common key sizes Trang 8brute-Brute Force Search• Data Encryption Standard(DES) is 56 • Advanced Encryption Standard (AES) is 128 • Triple-DES is 168 Trang 9Brute Force Search• always

Ngày tải lên: 20/09/2020, 13:57

... different versions of a procedure based on the number and data types of the arguments passed to that procedure – The number and data types of the arguments expected by a procedure are called ... different versions of a procedure based on the number and data types of the arguments passed to that procedure – The number and data types of the arguments expected by a procedure are called ... such as code attempts to run a Numeric Conversion • Used to catch and handle exceptions; referred to as error trapping or handling • Enclose statements that might cause an error within Try/Catch

Ngày tải lên: 13/05/2014, 11:31

... processing and spatial data handling are commonly used in the field of GIS, and mean more or less the same The first emphasizes more the aspect of interpretation and human understanding of the ... provide means for capturing and processing of spatial data, provide a formal and theoretical foundation, are application-oriented, and support spatial data handling in legal and management aspects ... spatial and non-spatial attributes of data, and can be grouped into the following types Retrieval, classification, and measurement functions • Retrieval functions allow the selective search and

Ngày tải lên: 21/10/2014, 10:09

... further in Section 7.4.3 Data formats An important problem in any environment involved in digital data exchange is that of data formats and data standards Different formats were implemented by ... implemented by different GIS vendors; different standards come about with different standardization committees The good news about both formats and standards is that there are so many to choose from; ... published maps and spatial data Spatial referencing encompasses the definitions, the physical/geometric constructs and the tools required to describe the geometry and motion of objects near and on the

Ngày tải lên: 21/10/2014, 10:09

... 7.4 Metadata and data sharing 143  7.4.1 Data sharing and related problems 143  7.4.2 Spatial data transfer and its standards 144  7.4.3 Geographic information infrastructure and clearinghouses ... constituents in x-and y-direction, respectively δx and δy Analogously to the calculation of the variance and standard deviation of a statistical sample, the root mean square errors m x and m y of a ... institutional and economic problems, and finally • communication problems Data distribution Spatial data are collected and kept in a variety of formats by the producers themselves What data exists, and

Ngày tải lên: 21/10/2014, 10:09

... Trang 1• Primitive Data Types• Character String Types • User-Defined Ordinal Types • Array TypesArray Types Trang 2• A data type defines a collection of data values and a set of predefined operations ... and how are they specified? Primitive Data Types • Almost all programming languages provide a set of primitive data types – Primitive data types: Those not defined in terms yp of other data types ... Some primitive data types are merely reflections • Some primitive data types are merely reflections of the hardware • Others require little software support Trang 3Primitive Data Types: Integer•

Ngày tải lên: 26/01/2015, 09:58

... 22Forecasting and Demand MeasurementMarket - Size - Growth - Profit potential Trang 23Market TypesPotential Market Available Market Target Market Penetrated Market Trang 24Ninety Types of Demand MeasurementTrang ... 24Ninety Types of Demand MeasurementTrang 25Demand MeasurementMarket Demand Company Demand Trang 26Market Demand FunctionsTrang 27Estimating Current DemandArea market potential Total market potential ... Mining Sales Information Systems Trang 8Marketing IntelligenceNews and Trade Publications Meet with customers, suppliers, distributors, and other managers Monitor social media sites Trang 9Improving

Ngày tải lên: 15/10/2016, 00:34

... 15Understanding the Entityand Its Environment Trang 16Understanding the Entityand Its Environment Trang 17Auditor’s Risk Assessment Procedures (How do we gather this evidence?)Inquiries of Managementand ... risks andunderstand the potentialmisstatements that may result Business risksinclude any external orinternal factors, pressures, andforces that bear on the entity’s ability to survive and be ... Risk Assessment ProcessTrang 14Understanding the Entityand Its Environment IndustryFactors RegulatoryEnvironment the EntityNature of InternalControl Objectives and Strategies BusinessRisks FinancialPerformance

Ngày tải lên: 15/05/2017, 08:06

... problem and that, trary to the trend for other environmental stressors (e.g second handsmoke, dioxins and benzene), which are declining, noise exposure isactually increasing in Europe and worldwide ... world However, the metric has not been with-out its critics withAnand and Hanson (1997)describing it as ‘ .flawed, andits assumptions and value judgements are open to serious question’ FIGURE 3.2 ... structure and continuity despite the factthat subjects considered air and rail more disturbing subjectively; cor-tical and cardiac responses during sleep were lower for air compared toroad and rail

Ngày tải lên: 30/12/2017, 09:45

... and graphic system, grammar and vocabulary 2 Language as knowledge and though t 3 Language as behavior enacted in a social context 4 Language as art , or as a particular way of representing and ... ESL and FL methodologists, syllabus desingers, and curriculum developers. Trang 7 The growth of the field of applied linguistics Programmatic chart proposed by Michael Halliday in 1978 expanded ... thereby increased dramatically , but so have the buzzwords and shorthand verbal practices, which constitute as many opportunities for misunderstanding Applied linguists & language teachers see

Ngày tải lên: 02/01/2018, 16:45

... ways to weigh pros and cons, or risks and benefits, against each other: individual and collective weighing Individual weighing is concerned with the balance between advan-tages and disadvanadvan-tages ... dose limits and has no further requirements on the reduction of doses Both in social policies and radiation protection, such a policy can be criti-cized both for demanding too little and for being ... deontologi-cal and (in particular) utilitarian theories come in many variants, and there are also several additional classes of moral theories, such as those that are based on rights and on contractual

Ngày tải lên: 03/01/2018, 17:48

... parameters and calling addresses for procedure and system calls The stack pointer points to the top of the stack Trang 40Process Control Block • Process Control Information – Scheduling and State ... terms of the memory that may be accessed and the types of instructions that may be executed In addition, privileges may apply to the use of system utilities and services Trang 43Process Control ... segment and/or page tables that describe the virtual memory assigned to this process – Resource Ownership and Utilization • Resources controlled by the process may be indicated, such as opened files

Ngày tải lên: 09/01/2018, 12:01

... Strong &atrix &atrix and and balanced balanced &atrix&atrix B 8unctional 8unctional and and pro-ectizedpro-ectized C Pro-ectized Pro-ectized and and balanced balanced &atrix&atrix ... A Strong &atrix and balanced &atrix B. 8unctional and pro-ectized C Pro-ectized and balanced &atrix " Pro-ectized and strong &atrix $ Strong &atrix and )unctional  ,he ... helps helps create create social social orderorder $ t t clari4es clari4es and and rein)orces rein)orces standards standards o) o) beha/ior.beha/ior '0 '0 o* does so&eone learn &oro*

Ngày tải lên: 04/06/2018, 15:18

... purchase less cheese and more wine so that the relative quantity of cheese demanded falls Trang 34Relative Supply and Relative Demand Trang 35Relative Supply and Relative Demand (cont.) Trang ... Trang 33Relative Supply and Relative Demand (cont.) • Relative demand of cheese is the quantity of cheese demanded in all countries relative to the quantity of wine demanded in all countries ... production and consumption: wine and cheese 5 Competition allows laborers to be paid a ―competitive‖ wage, a function of their productivity and the price of the good that they can sell, and allows

Ngày tải lên: 15/07/2018, 20:19

... in this section: Analog and Digital Data Analog and Digital Signals Periodic and Nonperiodic Signals 3.3 Note Data can be analog or digital Analog data are continuous and take continuous values ... Solution The lowest frequency must be at 40 kHz and the highest at 240 kHz Figure 3.15 shows the frequency domain and the bandwidth 3.44 Figure 3.15 The bandwidth for Example 3.12 3.45 Example 3.13 ... tone 3.36 Figure 3.11 The time and frequency domains of a nonperiodic signal 3.37 Note The bandwidth of a composite signal is the difference between the highest and the lowest frequencies contained...

Ngày tải lên: 29/03/2014, 11:20

... appears You can have some script execute when you show and/ or hide the pop up by using the onpopupshowing and onpopuphiding methods, as when you show and hide items in a dynamic menu The second step ... items like menus and buttons 3.4 Tabular and Hierarchical Information Many options exist to display hierarchical information in your user interface The most common are tree-like and table-like ... boxes, trees, and grids With the exception of the tree, these elements are not limited in regard to the content they can contain Currently, the tree only holds text and image content and grids are...

Ngày tải lên: 17/10/2013, 19:15

... distributed random numbers with mean and variance 1: xn ˆ 2*sqrt(3)*(rand À 0:5); For two random variables x and y, we have E‰x ‡ yŠ ˆ E‰xŠ ‡ E‰yŠ, …3:3:15† i.e., the mean value of the sum of random ... output files, we have to set the CCS output file in integer format We can load the output file out12.dat and listen to it using the following MATLAB commands: load out12.dat; % Read data file soundsc(out12, ... results between (a) and (b) (d) A ˆ 1, f ˆ 600 Hz, and fs ˆ kHz (e) Compare and explain the results (b) and (d) 14 Generate 1024 samples of pseudo-random numbers with mean and variance using the...

Ngày tải lên: 19/10/2013, 23:15

... oncommand="chooseType(this);"/> group="flyTypes" ... ... the native web formats of JPEG, PNG, and GIF Most images you will find in the Mozilla UI are GIF files, which retain the best quality when compressed Chapter discusses theme issues and considerations...

Ngày tải lên: 20/10/2013, 09:15

... ... has a command set that has its own commands and that pulls in a second set defined elsewhere (moreEditItems)

Ngày tải lên: 20/10/2013, 09:15

... splitter changes when a user handles the and collapses the splitter, for example, and then quits the persist attribute preserves the splitter state and its visibility for the next ... and These two elements create space between widgets in a box and can be horizontal or vertical depending on the orientation of the box The separator is a visible divider and the ... flicker and UI wobbles when content is being shown and hidden intermittently 3.9.3.2 Overflow A value of scroll or auto for the CSS overflow property ensures that a scrollbar appears and that...

Ngày tải lên: 24/10/2013, 08:15