... mechanical, including photocopying, recording or any information storage and retrieval system now known or to be invented, without written permission from the Publisher For photocopying of material ... According to classical physics the infalling observer can use an arbitrarily large carrier frequency to send an arbitrarily large amount of information using Black Holes, Information, and the String ... quantity to be measured Thereafter, as we shall see, no information can be transmitted from behind the horizon 1.2 Tortoise Coordinates A change of radial coordinate maps the horizon to minus...
Ngày tải lên: 19/01/2014, 13:57
... relativistic strings [1.3-5] Strings thus offer a possibility of consistently describing all of nature However, even if strings eventually turn out to disagree with nature, or to be too intractable to be ... chapter (except the introduction) to guide the reader to examples which illustrate the ideas in the chapter, and to encourage him to perform calculations which have been omitted to avoid making the ... someone to read a book on the topic and the worst time for someone to write one I have tried to compensate for this problem somewhat by expanding on the more introductory parts of the topic Several...
Ngày tải lên: 17/03/2014, 14:48
Tổng quan về các thiết bị trong ngành dầu khí - AN INTRODUCTION TO RIG TYPE AND BASIC DRILL STRING COMPONENTS
... kiểu Elevator, loại cần khoan có đầu nối hình dạng khác nên phải chọn kiểu Elevator phù hợp − Nếu chọn Elevator không làm hỏng Elevator làm rơi cần khoan xuống giếng khoan • Casing Elevator: dùng ... with FinePrint pdfFactory Pro trial version http://www.fineprint.com PVD Training • Elevator − Elevator kẹp chốt dùng để giữ chặt cần khoan, ống chống kéo thả cần ống − Elevator gắn với ròng rọc ... vỉa chứa dầu khí − Trong khoan Mud Motor to n cần khoan phía Mud Motor không quay, đễ bị kẹt cần Để khắc phục, phải thường xuyên kéo dạo xoay cần bàn rôtơ Top drive − Directional Wells Ngày nay,...
Ngày tải lên: 01/04/2014, 09:06
physics - introduction to string theory
... any path from to is equal to a sum of paths from to and a path from to Property (N) says that the total probability amplitude of a particle to move from to somewhere is equal to Notice that ... Applying this to our situation, we obtain that e F e The operator d F for some linear operator ciated to is called the Hamiltonian operator asso- We would like to apply the above to our function ... vertices, we assign to each vertex a factor , to each edge a factor , then multiply all the factors and divide by the number of symmetries of the graph This gives the Feynman rules to compute the...
Ngày tải lên: 18/04/2014, 15:28
An introduction to black holes, information and the string theory revolution
... mechanical, including photocopying, recording or any information storage and retrieval system now known or to be invented, without written permission from the Publisher For photocopying of material ... According to classical physics the infalling observer can use an arbitrarily large carrier frequency to send an arbitrarily large amount of information using Black Holes, Information, and the String ... quantity to be measured Thereafter, as we shall see, no information can be transmitted from behind the horizon 1.2 Tortoise Coordinates A change of radial coordinate maps the horizon to minus...
Ngày tải lên: 26/01/2015, 11:41
An introduction to disk drive modeling
... specifications, since the only alternative is to determine them experimentally The information required to determine how much power to apply to the pivot motor and for how long on a particular seek ... cylinder skewing and sector-based sparing with one spare sector per track This needs to be accounted for in mapping logical blocks to the physical sectors Adding all these factors results in the ... 97560 sector size 256 bytes 512 bytes cylinders 1449 1962 tracks per cylinder 19 data sectors per track 113 72 number of zones 1 track skew 34 sectors sectors cylinder skew 43 sectors 18 sectors...
Ngày tải lên: 12/09/2012, 14:16
C++ - I/O Streams as an Introduction to Objects and Classes
... beginning to the end (for now) No backing up to read something again (OK to start over) Just as done from the keyboard Writing to a file Sending output to a file Done from beginning to end ... Addison-Wesley Slide 6- 37 Formatting Output to Files Format output to the screen with: cout.setf(ios::fixed); cout.setf(ios::showpoint); cout.precision(2); Format output to a file using the out-file ... fails, it is generally best to stop the program The function exit, halts a program exit returns its argument to the operating system exit causes program execution to stop exit is NOT a member...
Ngày tải lên: 12/09/2012, 22:49
Introduction to Digital Signal Processing and Filter Design
... wordlength and quantization format In Chapter 7, we discuss the use of a MATLAB tool known as the “FDA Tool” to thoroughly investigate the effect of finite wordlength and different formats of quantization ... alone complete it So I dedicate this book to her and also to our family B A Shenoi May 2005 CHAPTER Introduction 1.1 INTRODUCTION We are living in an age of information technology Most of this technology ... using complementary metal oxide semiconductor (CMOS) transistors They used no resistors and inductors, and the whole circuit was fabricated by the 20 INTRODUCTION very large scale integration...
Ngày tải lên: 13/09/2012, 10:21
Introduction to Wireless Communications
... software that helps identify other Bluetooth devices Bluetooth and Ultra Wide Band (continued) Bluetooth and Ultra Wide Band (continued) • Bluetooth – Distance: up to 33 feet (10 meters) – Bandwidth: ... (continued) Bluetooth and Ultra Wide Band • Radio frequency identification device (RFID) tags – Small chips containing radio transponders • Can be used to track inventory • Bluetooth and Ultra ... Used to transmit data over very long distance • Repeater – Located in the satellite itself – Simply “repeats” the same signal to another location – Used to transmit data from one earth station to...
Ngày tải lên: 13/09/2012, 10:52
An Introduction to Software Engineering
... developed for a particular customer or may be developed for a general market Software products may be • • Generic - developed to be sold to a range of different customers e.g PC software such ... systems that are intended to provide automated support for software process activities CASE systems are often used for method support Upper-CASE Lower-CASE • • Tools to support the early process ... engineers should adopt a systematic and organised approach to their work and use appropriate tools and techniques depending on the problem to be solved, the development constraints and the resources...
Ngày tải lên: 14/09/2012, 11:26
A simple introduction to working with LVM
... let me know Closing Comments If you're ready to make the jump to LVM and don't have a lot of space handy for allocating to LVM then it might make sense to reinstall your system The Debian installer ... you really want to remove active logical volume "test"? [y/n]: y Logical volume "test" successfully removed Other userful commands include lvrename to change the name, and lvreduce to reduce the ... volumes What we really want to is create logical volumes which we can mount and actually use In the future if we run out of space on this volume we can resize it to gain more storage Depending on the...
Ngày tải lên: 18/09/2012, 10:12
Cambridge.University.Press.An.Introduction.to.Law.and.Regulation.Text.and.Materials.Apr.2007.pdf
... regulatory tools and techniques is to advocate combining techniques rather than relying upon any single instrument: an approach often referred to as a ‘regulatory toolbox’ approach As the toolbox ... are unlikely to be alluded to in advertising materials Another problem arises from the fact that information as to quality is more costly to supply and process then information as to price Prices ... invoking the expansion of choice available to citizens Yet both failed to give credence to the incapacity of particular sectors of the Introduction community to avail themselves of essential commodities,...
Ngày tải lên: 21/09/2012, 10:39
Cambridge.University.Press.An.Introduction.to.the.Philosophy.of.Mind.Jan.2000.pdf
... philosophers of mind tend to distort or oversimplify the historical Descartes’s views, but this is not the place for me to engage with them over that issue 10 An introduction to the philosophy of ... about this Secondly, if they mean to abandon reasoned argument altogether, even in defence of their own position, then I have Introduction nothing more to say to them because they have excluded ... in which these topics are covered has been deliberately chosen so as to enable the reader to build upon the understanding gained from earlier chapters in getting to grips with the topics of later...
Ngày tải lên: 21/09/2012, 10:39
Cambridge.University.Press.The.Cambridge.Introduction.to.Modern.British.Fiction.1950-2000.Apr.2002.pdf
... feels obliged to take If to permit the expression of humanity is to tolerate the antisocial expression of youth power, this might also be to allow the rapists into your own home, into the writer’s ... to flee to the US to escape the totalitarian state that may result from the continuing appeasement of Hitler As a consequence, there is a mood of ‘dissolution’ in which private miseries seem to ... girlfriend he refuses to marry) convey an attachment to place that belies his stated intention to emigrate In this way Cooper manages to play two contexts off against each other: historical hindsight...
Ngày tải lên: 21/09/2012, 11:00
An introduction to franchising
... Pay attention to the contact information of the franchisees who have left the system These are people you definitely want to talk to THE IFA EDUCATIONAL FOUNDATION An Introduction To Franchising ... are similar to franchises, and vice versa A franchisee with a great deal of leeway in how to run the business may look like an independent distributor A distributor may be subject to many controls ... entitled to have the final franchise agreement for at least business days before they are allowed to sign This gives them time to review and consider the terms of the agreement An Introduction To Franchising...
Ngày tải lên: 19/10/2012, 15:42
Introduction to fluid mechanics - P1
... origin of the ship is not clear, but it is easy to imagine the course of progress from log to raft, from manual propulsion to sails, and from river to ocean navigation The Phoenicians and Egyptians ... used by a citizen in those days is said to be approximately 180litres Today, the amount of water used per capita per day in an average household is said to be approximately 240 litres Therefore, ... the history of the city water system is very old But in the development process of city water systems, in order to transport water effectively, the shape and size of the water conduit had to be...
Ngày tải lên: 22/10/2012, 10:59
Introduction to fluid mechanics - P2
... only too well known There are so many scientific terms named after Newton (Newton's rings and Newton's law of motion/ viscosity/resistance) that he can be regarded as the greatest contributor to ... 14.21 15.12 16.04 16.98 Stokes’ equation, to be stated in Section 9.3.3, is utilised for measuring the viscosity, it is named after him), while its 1/ 100th part is cSt (centistokes) Thus I s t = ... tension 13 sensitivity to temperature is expressed by the viscosity index VI,' a non-dimensional number A VI of 100 is assigned to the least temperature sensitive oil and to the most sensitive...
Ngày tải lên: 22/10/2012, 10:59
Introduction to fluid mechanics - P3
... (3.26) into (3.25) to calculate y, (3.27) Parallel a x b theorem: The moment of inertia with respect to any axis equals the sum of the moment of inertia with respect to the axis parallel to this ... to water pressure, such as the bank of a dam, the sluice gate of a dam or the wall of a water tank? How large must the torque be to open the sluice gate of a dam? What is the force required to ... metre Torr Pa bar mH,O atm mHg torr Pa = N/m2 bar = 0.1 MPa mH,O = 806.65 Pa atm = 101 325Pa mHg = 1/0.76 atm torr = 1mmHg 3.1.2 Absolute pressure and gauge pressure There are two methods used to...
Ngày tải lên: 22/10/2012, 10:59
Introduction to fluid mechanics - P4
... we had to trust mainly to Rankine's text books Occasionally in the higher classes he would forget all about having to lecture and after waiting for ten minutes or so, we sent the janitor to tell ... formula or other and say it was wrong He then went up to the blackboard to prove this He wrote on the board with his back to us, talking to himself, and every now and then rubbed it all out and ... liquid makes a rotary ’In general, vector with the following components x, y, z for vector V (components x, y, z are u, v, w) is called the rotation or curl of vector V, which can be written as rot...
Ngày tải lên: 22/10/2012, 10:59