fundamentals of digital logic design by floyd

... description of the inputs and the outputs, and the architecture contains the description of the actual circuit in terms of a Boolean function or functions 1.48 A VHDL design consists of 3 parts ... X•(1 + Y) X•1 X Note that EOL = EOR Absorption Theorem T1a: X•(X + Y) = X Proof by Perfect Induction Method Proof by Mathematical Manipulation Method (proving that EOL = EOR) X Y X+Y X•(X+Y) ... dual of a Boolean relationship or a Boolean expression is obtained by interchanging the identity elements (1 and 0) and the binary operators (• and +) while maintaining the order of precedence of

Ngày tải lên: 20/08/2020, 12:02

... list of certainties in life To paraphrase James P Lewis, author of the first three editions of this book, in Chapter 3, project failuresare caused primarily by the failure to plan properly I often ... those pre- sented in the latest version of the PMBOK ® Guide With this ex-panded edition of Fundamentals of Project Management, I hope to enhance your chances of bringing projects in on time, on ... negative kind of problem Project Failures In fact, the Standish Group (www.standishgroup.com) has found that only about 17 percent of all software projects done in the 2 Fundamentals of Project

Ngày tải lên: 21/06/2014, 08:20

... Fundamentals of Project Management 28 those individuals who take authority for granted usually get it officially Of course, I am not advocating that you violate any of the policies of the ... 30 Fundamentals of Project Management skills In fact, the two sets of skills must be integrated into the job of project management because management deals with the administrated aspects of the ... net result of being on this curve is to experience a lot of pain, because the total pain experienced is represented by the area under the curve In curve of the figure, there is a lot of pain early

Ngày tải lên: 21/06/2014, 08:20

... resolved only by using computer software, exceptfor very simple schedules This is where the software really excels,and yet estimates are that only a few percent of all the people whopurchase software ... critical path. Trang 6to have a false sense of security and put off starting, underthe assumption “I can always make up one day.” By the timethey start, they often have slipped several days and find ... slip accordingly All of the activities thathave ES/LS or EF/LF times that differ are said to have float Forexample, Trim Weeds has an ES time of fifteen minutes and an LStime of sixty minutes, giving

Ngày tải lên: 21/06/2014, 08:20

... sitting by idly It is doingnew things, some of which may be better than what you aredoing If you aren’t improving, you will be passed by, and soon you won’t have a market The same is true of every ... over you because of its better control of project work. Additionally, in order to learn, people require feedback, like that gained by a team from reviewing game films The last phase of a project should ... conducted by an pendent examiner, who can remain objective in the assessment inde-of information However, the process review must be conducted in a spirit of learning, rather than in a climate of blame

Ngày tải lên: 21/06/2014, 08:20

... cost of work scheduled): The budgeted cost of work scheduled to be done in a given time period or thelevel of effort that is supposed to be performed in that period ៑BCWP (budgeted cost of work ... budgeted cost of work actually performed in a given period or the budgeted level of effort actually expended BCWP is also called earned value and is a measure of the dollar value of the work actually ... stays there for a while; then, all of a sudden, the work is completed Trang 12The reason is that problems are often encountered near theend of the task, and a lot of effort goes into trying to solve

Ngày tải lên: 21/06/2014, 08:20

... of perspectives As project leader, it is important for you to create an environment that encourages the exchange of ideas and opinions, free of the threat of reprisals This positive culture of ... decisions If you are surrounded by “yes” people, devoid of the necessary vetting of ideas, the project will most likely stagnate, and you will lose the real value of your constituents Motivation ... DU ES DU 10 LS 20 EF LF 20 20 Chapter 11 It is behind schedule by $160 worth of work It is overspent by $240 It will be overspent by $416 American Management Association • www.amanet.org This

Ngày tải lên: 21/06/2014, 08:20

... project by, 2 definition of project management by, 25 growth of, 1 membership in, 184 website of, 17 Project Management Professional (PMP®) designation, 1 project managers, 24–32 attributes of, 30 ... development of, 49–51 effects of adverse events on, 22 as factor in assessing change, 129 nature of, 52 as part of project plan, 38 of project team, 158–160 purpose of, 115 quantification of, 50 satisfying ... level of, 115 as part of project plan, 39 and scheduling, 86 sharing of, 138 shortening task by adding, 102 warnings about limited, 102 responsibility assigning, 73 of project managers, 113 of project

Ngày tải lên: 21/06/2014, 08:20

... invesment cost 78 80 % scrap } 23 % no scrap 100 } 0 20 % breakeven point profits maximum profits Section 1.2 Designed/Undesigned Scrap/Cost ! k4t'k$jj$yik ojhy$t4Xmo oyUwgnx unơg4tx un4 oyDni ... c # u u u Ơ u uU u ! U Ô )6U 0# u U  u   u   hy U# $ư x u !$ưu $u 6 $ ! hu u ! Uu  Yu of3 9 $ u U} u ău "UFR u u g u u vY! u u  y u h3 u hy  u Y9! uuư"u  ! h u 9 u u B)

Ngày tải lên: 06/07/2014, 11:20

... DIALECT OF OUR OWN DESIGN SIMON COLLISON Interlink, June 2011 @colly colly.com PART ONE EVERYTHING AN ESTABLISHED VISUAL GRAMMAR [...]... MEANING & PERCEPTION MENTAL MODELS The models people have of ... a quality of an... two things Natural mapping leads to immediate understanding MAPPING Control Outcome Control Understanding Outcome AFFORDANCE An affordance is a quality of an object,

Ngày tải lên: 21/07/2014, 10:28

... Fundamentals of Digital Television Transmission. Gerald W. Collins, PE Copyright  2001 John Wiley & Sons, Inc. ISBNs: 0-471-39199-9 (Hardback); 0-471-21376-4 (Electronic) FUNDAMENTALS OF ... study of many reports and papers. This book is the result of that effort. If in some respect the presentation of any topic is incomplete, I take full responsibility. The implementation of digital ... claim originality for much of the material included in this book. In fact, the story of digital television builds on the many contributions of workers since the beginning of radio and television

Ngày tải lên: 14/08/2014, 16:20

... sourcecoding of video and audio and the packetization and multiplexing of video,audio, and data signals for the DTV, DVB-T, and ISDB-T systems MPEG-2defines the protocols for digital compression of the ... second level of multiplexing, many single programs arecombined to form a system of programs The content of the transport streammay be varied dynamically depending on the information content of the ... demodulationand decoding of the STL signal to recover the transport stream prior to modulationand coding in the DTV, DVB-T, or ISDB-T transmitter Trang 4Fundamentals of Digital Television Transmission

Ngày tải lên: 14/08/2014, 16:20

... blocks, each block having a dimension of k b bytes. A code word of n b bytes in length is constructed by adding n b –k b redundancy or error correction bytes to each block. The R/S code notation ... TRANSMITTERS FOR DIGITAL TELEVISION1 The introduction of digital TV... both sides of this equation are polynomials of order N, the precorrection is properly set up when the coefficient of each ... probability of error, and bandwidth are now discussed. At the input to the modulator, the average power, P a , is the mean of the sum of the squares of the symbol values multiplied by the symbol

Ngày tải lên: 14/08/2014, 16:20

... function design may be less than half the length of a correspondingChebyshev design.1An elliptic function design may also have less insertion lossand group delay variation than the Chebyshev design ... filter of this type isshown in Figure 5-4 There is nearly a 120-ns delay variation at š3 MHz fromband center Figure 5-4 Group delay of filter for digital television (Data courtesy of Scott Durgin of ... such a way as to minimize the perturbation of the field configuration andresonant frequency of the cavity By proper selection of the point and degree of coupling, the cavity input impedance at

Ngày tải lên: 14/08/2014, 16:20

... generally lower than that of rigidlines by virtue of their lower characteristic impedance The larger inner conductorcoupled with the usual reduction by 5% to allow for the effects of manufacturingtolerances, ... configuration could be a pair of 17.5- or 25-kW final amplifier Either ofthese might be a good choice, assuming the use of any one of the rigid coaxiallines For a TPO below 25 kW, a pair of 12.5-kW finals ... above the cutoff frequency toassure minimum attenuation and phase nonlinearity Like coaxial lines, the upper-frequency limit of rectangular waveguide isdetermined by the cutoff frequency of the first

Ngày tải lên: 14/08/2014, 16:20

... amplitude of each element abovethe center is reduced from the amplitude of its next-lower adjacent neighbor by a fixed percentage; the amplitudes of the elements in the lower half of the arrayare ... group delay, even in a tical embodiment of this design The absence of phase changes is dependent prac-on the method of obtaining null fill and the amount of taper in the aperturedistribution Even ... The first null is filled to a level of22%; the second, to a level of 9% Common amounts of first null fill range from 5 to 35% Unlike beam tilt, inclusion of null fill in the elevation pattern

Ngày tải lên: 14/08/2014, 16:20

... Modification of the radiation resistance of a dipole in the presence of a groundplane is equivalent to the effect of the mutual impedance of a pair of paralleldipoles driven out of phase by equal ... sake of illustration, the results ofcalculation of the mutual impedance of parallel half-wavelength dipoles as a func-tion of separation are plotted in Figure 7-35 Note that the peak values of ... panel designs, with other properties similar to those ofhorizontally polarized designs VHF panel designs include cavity radiators excited by crossed dipoles In addition, helical or spiral designs

Ngày tải lên: 14/08/2014, 16:20

... directions. By the principles of geometric optics, the vector sum of the rays from the secondary 12 Y. Wu, B. Ledoux, and B. Caron, “Evaluation of Channel Coding, Modulation and Interference in Digital ... transmitter is given by H D h t 0 d t C h r 0 d r R Use of these equations and graphs will be illustrated later in the analysis of digital television field tests. The effect of an intervening hill ... sharpness of the peak of the hill is represented by a contour parameter, p h , which is proportional to the radius relative to the first Fresnel zone radius in the absence of the hill, given by p h

Ngày tải lên: 14/08/2014, 16:20

... amplification CALORIMETRY Measurement of power by means of calorimetry is a direct measurement of theamount of heat energy dissipated in a liquid per unit time For the purpose ofdiscussion, it is assumed ... in relation to the rating oftransmission components The peaks of the RF envelope are determined statistically by the randompattern of the data and the bandlimiting of the system Thus the peak ... is often presented in the form of a cumulative distribution function (CDF) This is a concept borrowed from the mathematics of probability that permits thedescription of the relative frequency of

Ngày tải lên: 14/08/2014, 16:20

... from grossprofit onwards Summarising the Ledger Accounts Trang 31Preparation of the ISNotes K Gross profit margin¼ profit as % of sales K Gross profit mark up¼ profit as % of cost of sales K Carriage ... lead to balancing of the TB K Errors of omission (transaction not included) K Errors of commission (similar type but wrong a/c) K Errors of principle (wrong type of a/c) K Errors of original entry ... use of this publication) without the written permission of the copyright holder, except in accordance with the provisions of the Copyright, Designs and Patents Act 1988, or under the terms of

Ngày tải lên: 04/03/2017, 11:20