introduction to gas discharges

... energy back into the magnetic field and pitch may or may not contain overtones depending on the extent of conductors bounding the energies FIELD The ratio of magnetic storage ability to that of ... ANALOGY TO CAPACITANCE MECHANISM OF STORING ENERGY MAGNETICALLY INSTANT ENERGY RELEASE AS INFINITY ANOTHER FORM OF ENERGY APPEARS ENERGY STORAGE SPATIALLY DIFFERENT THAN MAGNETIC ENERGY STORAG ... Trang 1I) INTRODUCTION TO DIELECTRIC & MAGNETIC DISCHARGES IN ELECTRICAL WINDINGS by Eric Dollard, © 1982 IL) ELECTRICAL OSCILLATIONS IN ANTENNAE AND INDUCTION COILS Trang 2CDUCTION TO DIELECTRIC

Ngày tải lên: 04/06/2014, 12:40

... piston or diaphragm (unbalanced member) Tank pressure is applied to the top of the piston or diaphragm via the pilot As the area at the top of the piston or diaphragm is larger than the bottom, ... SIGTTO produced "Guidelines on the Maintenance of Pressure Relief on board Gas Carriers" In 1998 this booklet was revised and expanded and the title changed to: "An Introduction to ... extended to more practical limits, in the order of 10 to 15% e) Operation to be free from the effects of frosting which may occur within the valve 0 Operation to be unaffected by acceleration due to

Ngày tải lên: 09/04/2019, 14:57

... direction is also produced The total head loss hb is expressed by the following equation: V2 Here, c b is the total loss factor, and [ is the loss factor due to the bend effect The values of ... British texts use 4f in this equation Since friction factor f = 1/4, it is essential to check the definition to which a value of friction factor refers The symbol used is not a reliable guide ... 16Table 7.1 Loss factor [ for bends (smooth wall Re = 225 000, coarse wall face Re = 146 000) bend In a bend, in addition to the head loss due to pipe friction, a loss due to the change in flow

Ngày tải lên: 22/10/2012, 10:59

... proportional to the square of the circular velocity r o of that section, and the friction coefficient is f, the torque IT; due to this surface friction is as follows: Assuming f = f f , the torque ... subject to a force from the surrounding fluid When a flat plate is placed in the flow direction, it is only subject to a force in the downstream direction A wing, however, is subject to the ... inclined to the flow as shown in Fig 9.2 In general, the force R acting on a body is resolved into a component D in the flow direction U and the component L in a direction normal to U The former

Ngày tải lên: 22/10/2012, 10:59

... not feasible to have the ratios of all such corresponding forces simultaneously equal, it will suffice to identify those forces that are closely related to the respective flows and to have them ... function is called dimensional analysis If a phenomenon is too complicated to derive a formula describing it, dimensional analysis can be employed to identify groups of variables which would appear in ... groups can be constructed allowing numerical calculations to be conducted Trang 2In order to perform the dimensional analysis, it is convenient to use the n theorem Consider a physical phenomenon having

Ngày tải lên: 22/10/2012, 10:59

... compressibility is to be taken into account, refer to Section 13.4 A Pitot tube is also used to measure the flow in a large-diameter pipe In this case, the cross-section of the pipe is divided into ring-like ... use 11.1.1 Pitot tube Figure 11.1 shows the shape of a commonly used standard Pitot tube (also called a Pitot-static tube) The flow velocity is given by the following equation from total pressure ... pressure p z , both to be measured as in the case of eqn (5.20): where c is called the Pitot tube coefficient, which may be taken as having value 1 for a standard-type Pitot tube However, when

Ngày tải lên: 22/10/2012, 10:59

... the total tem- From eqns (13.23) and (13.38), (1 3.39) This is applicable to a body placed in the flow, e.g between the stagnation point of a Pitot tube and the main flow Correction to a Pitot ... a quantity of heat AQ transfers from a high-temperature gas at to a low-temperature gas at 5, the changes in entropy of the respective gases are -AQ/T, and A Q I S Also, the value of their sum ... assumed, the heat shifts between gases of equal temperature Therefore, ds = 0 Trang 5Fig 13.1 Propagation of pressure wave per unit time In order to supplement it, gas of mass Au(p + dp) = Aup

Ngày tải lên: 22/10/2012, 10:59

... pressurised pipe begins to discharge backwards into the tank at velocity v The pressure reverts to the original tank pressure po, and the pipe, too, begins to contract to its original state The ... comprising pipe line and tank changed (from 0 to p,, say), it is desirable to know the response of the outlet pressure p2 Assuming a pressure loss Ap due to tube friction, with instantaneous flow ... motive power, but recently it has been utilised for transmitting or automatically controlling power too High-pressure fluid has to be used in these systems for high speed and good response Consequently

Ngày tải lên: 22/10/2012, 10:59

... than to obtain the approximate solution numerically For a compressible fluid, it is further necessary to solve the equation of state and the energy equation simultaneously with respect to the ... it has become popular to solve flow problems numerically By such means it is now possible to follow a kaleidoscopic change of flow This field of engineering is referred to as numerical fluid ... calculated by using this method." One of the methods used to solve the compressible Navier-Stokes equation taking the viscosity into account is the IAF (Implicit Approximate Fig 15.9 Equi-Mach

Ngày tải lên: 22/10/2012, 10:59

... develop These vortices act to increase the lift necessary for a high-speed aircraft to undertake low-speed flight Plate 7 6 and Fig 16.6' visualise the flow around an automobile by the smoke method ... due to the change in density (temperature) The interference method, which uses the fact that the number of interference fringes is proportional to the difference in density, is mostly applied to ... applied to air flow For free surface water flow, the stereophotography method is used The unevenness of a liquid surface is stereophotographed to determine the difference in the height of the liquid

Ngày tải lên: 22/10/2012, 10:59

... the bottom row of tabs have an hierarchical relationship with the top row In that case two rows of tabs are fine, but be sure to indicate that the bottom row is directly related to the top row ... rows with the bottom row directly related to the top row The active tab is clearly indicated and the 2nd row is visually distinct Adobe attempts to convert the last crumb into a header, perhaps ... users to be focussed on your video make sure that there are minimal distractions Autoplay or Not? Sites handle this issue differently I would suggest to you to let a movie preload but to not

Ngày tải lên: 06/11/2012, 13:48

... induce him to Trang 19face independently the actual problems of philosophy as they appearedto his own time; he began also to direct his attention to the history ofphilosophy, and thus to call in ... increase discus-to their number does not seem discus-tohave occurred to him The only modifications he introduces are prima-rily due to the need of systematising them, to weaving them into onetexture ... General Introduction to Hegel’s System J.B Baillie Macmillian, New York and London 1901 Batoche Books Kitchener 1999 Trang 3Preface 5Chapter I: Introduction 9 Chapter II: First Stage—From 1797 to

Ngày tải lên: 06/11/2012, 15:51

... Regimes 36 2.1 Introduction 36 2.2 Collisional regimes: generalities 37 2.3 Pure gases: equilibrium regimes 38 2.3.1 Monatomic gases 39 2.3.2 Diatomic gases 41 vi CONTENTS 2.4 Pure diatomic gases: general ... applications of the results 50 2.6 Gas mixtures: equilibrium regimes 50 2.6.1 Mixtures of monatomic gases 50 2.6.2 Mixtures of diatomic gases 51 2.7 Mixtures of diatomic gases in vibrational non-equilibrium ... First-order solutions 69 3.3.1 Pure gases with elastic collisions: monatomic gases 70 3.3.2 Pure diatomic gases with one internal mode 75 3.3.3 Pure diatomic gases with two internal modes 82 Appendix...

Ngày tải lên: 11/06/2014, 10:24

... sensitive to GOR (Gas Oil Ratio) where gas over 10% dramatically lowers efficiency 3.6.3 Gas lift A gas lift injects gas into the well flow The downhole reservoir pressure falls off to the wellhead ... the gas to bubble out, water to settle at the bottom and oil to be taken out in the middle The pressure is often reduced in several stages (high pressure separator, low pressure 11 separator ... recycled to the third stage separator 42 4.3 Gas treatment and compression The gas train consists of several stages, each taking gas from a suitable pressure level in the production separator's gas...

Ngày tải lên: 30/10/2014, 22:31

... 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 ... 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...

Ngày tải lên: 12/09/2012, 14:16

... 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 ... 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 ... flag is an instruction to one of two options ios::fixed is a flag Will be written in fixed-point notation, the way we normally expect to see numbers Calls to setf apply only to the stream named...

Ngày tải lên: 12/09/2012, 22:49

... 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 ... may have to tune each of them to correct for manufacturing tolerances, but there is no such need to test the accuracy of the wordlength in digital filters Data on digital filters can be stored on ... the ability to understand the solution to the problems is important but understanding the theory behind them is far more important The following paragraphs are addressed to the instructors teaching...

Ngày tải lên: 13/09/2012, 10:21

... 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

... 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

... 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 ... 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, ... regulatory agencies and legislative actors in order to secure regulatory benefits, systems theorists might focus on the way in which the economic and political systems communicate (or fail to communicate)...

Ngày tải lên: 21/09/2012, 10:39