documentation inspection test and maintenance of explosion protected apparatus systems and installations
mcmillan, a. (1998). electrical installations in hazardous areas
... 570 571 572 21 Documentation, inspection, test and maintenance of 572 573 573 574 577 581 584 587 587 589 591 595 598 explosion protected apparatus, systems and installations 21.1 Documentation ... Routine inspection 598 599 599 604 604 604 xvi Contents 21.2.5 Visual inspection 21.2.6 Inspection procedures 21.3 Testing 21.3.1 Necessary testing 21.4 Maintenance of explosion protected apparatus ... respect of gases, vapours and mists 17.3.2 Selection of apparatus for dust risks 17.3.3 Selection on the basis of zone of risk 17.4 Selection of conduit or cable systems 17.4.1 Zone and Zone...
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iec 60092-375 ship board telecommunication cables and radio-frequency cables - general instrumentation, control and communication cables
... Areas and Composition of Conductors of Insulated Cables Flame-retardant Characteristics of Electric Cables Guide to the Calculation of Resistance of Plain and Tinned Copper Conductors of Lowfrequency ... quoted in this standard: Publication Nos 28: 92-3: International Standard of Resistance for Copper Electrical Installations in Ships, Part 3: Cables (Construction, Testing and Installations) 92-XXX: ... This standard has been prepared by Sub-committee 18A, Cables and Cable Installations, of I E C Technical Committee No 18, Electrical Installations in Ships It supersedes those clauses of Publication...
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dye, n. (2000). radio frequency transistors - principles and practical applicat
... over the frequency band of interest Slope is defined simply as the difference in gain at the high and low end of the frequency band of the amplifier Flatness, on the other hand, is defined as the ... larger and larger (higher and higher power), and is designed to operate at higher and higher frequencies, the result is a continual decrease in the input and output impedances of the device Think of ... Understanding RF Data Sheet Parameters INTRODUCTION Data sheets are often the sole source of information about the capability and characteristics of a product This is particularly true of unique...
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Advanced Radio Frequency Identification Design and Applications Part 1 ppt
... section of the book focuses on new and advanced applications of radio frequency identification The second section starts with one of the most common applications of RFID – privacy and product maintenance ... management, asset tracking, and security access control Due to the flexibility and numerous advantages of RFID systems compared to barcodes and other identification systems, RFID is now becoming ... systems are surveyed and new techniques and measures in increasing the privacy of RFID systems are presented The following chapters focus on the use of RFID for localisation and positioning applications...
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Advanced Radio Frequency Identification Design and Applications Part 2 potx
... the use of printed electronics, especially printed silicon electronics, which is out of the scope of the work in this chapter Cole et al (2010) give more details of the printed electronics and its ... al 12 Advanced Radio Frequency Identification Design and Applications (2005) The task of optimising the factor of θ is out of the scope of the work in this chapter Hence, it is not discussed ... advantage of to store data and achieve a balanced power consumption in both reading and programming In particular, Nakamoto et al (2007) addressed this 13 Operating Range Evaluation of RFID Systems...
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Advanced Radio Frequency Identification Design and Applications Part 3 pptx
... scaling factor of r = 1/3 and rotation angles of θ = 0°, 60°, -60°, and 0° There are four basic segments that form the basis of the Koch fractal antenna The geometric construction of the standard Koch ... structure Since the pioneering work of Mandelbrot and others, a wide variety of application for fractals continue to be found in many branches of science and engineering One such area is fractal ... purpose of investigating a new class of radiation, propagation and scatter problems One of the most promising areas of fractalelectrodynamics research in its application to antenna theory and design...
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Advanced Radio Frequency Identification Design and Applications Part 4 pot
... growing interest in RFID systems and its applications Operating frequencies including 125 KHz–134 KHz and 140 KHz–148.5 KHz LF band, 13.56 MHz HF band and 868 MHz–960 MHz UHF band were applied to ... aim of this paper is to merge the meander line and meandered-slot structure of the RFID tag antenna in order to obtain a good performance of compact, broadband and conjugate impedance matching Meantime, ... 55 Design of RFID Coplanar Antenna with Stubs over Dipoles Fig Dimensions and parameters of the coplanar strip folded dipole Figures 7(a) and 7(b) present the real and imaginary part of the input...
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Advanced Radio Frequency Identification Design and Applications Part 5 pptx
... The length, diameter, and number of turns of the antenna are denoted by H, D, and N, respectively The diameter of the antenna wire is denoted by d A comprehensive treatment of this antenna has ... radiation resistance of the small loops; and Rl, the ohmic resistance of the antenna wire XL and XC are the inductive and capacitive reactances, respectively The exact expressions for XL and XC will be ... view of antenna wire Figure 3.11 shows a cross-sectional view of the antenna wire The parameters W, t, and L represent the width, thickness, and total length of the wire, respectively, and δ...
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Advanced Radio Frequency Identification Design and Applications Part 6 potx
... shows examples of QA and QM for NMHAs; Ds is the diameter of the sphere enclosing an NMHA The antenna structures labeled A and B are those shown in Fig 3.16 The QA values of A and B are based ... thickness is T, and the size of the metal plate is M The spacing between the antenna and the metal plate is S The equivalent electric and magnetic currents are I and J, respectively Eθ and Eφ correspond ... as a reference to determine the dependence of MA on the structural parameters Comparison of structures A and B reveals the dependence of MA/L0 on HA and DA Taking into account Eq (4.11), we show...
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Advanced Radio Frequency Identification Design and Applications Part 7 pdf
... defined to have a thickness of 1.36 mm and a permittivity of 4.2 The values of M and N in Fig were 0.4 mm and 3.1 mm, respectively The overall dimensions of the MOCSRR particle and the OCSRR particle ... management of such items as grocery products in the retail supply chain, large volume of books in libraries, bottles in the pharmaceutical industry, and important documentation in offices (Landt, ... for various dimensions of the inner disc (i.e., for various values of rd) and scale factors (i.e., for various values of S) For the various values of rd the dimensions of the OCSRR particle were...
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Advanced Radio Frequency Identification Design and Applications Part 9 pot
... have presented the development and testing of a chipless RFID tag based on multiresonators The development and successful testing of the chipless RFID tag meets the demand for a fully-printable ultra-low ... input impedance of 30.9 − 213j ohms at a frequency of 915 MHz The input capacitance of the RFID IC has implications on the overall Q of the circuit and the final operating bandwidth of the RFID tag, ... information on the types of tags tested and what factors altered the failure rate, the authors of this chapter tested and analyzed several commercially available tags and published the result...
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Advanced Radio Frequency Identification Design and Applications Part 10 pdf
... k = M( seed T ∗ ), x = P ( k) and seed Ti = M( k) x ← −−−− − send x else choose random number rand calculate s = M( seed Ti ) and m = P ( s ) rand ← −−−− − send rand with probability λ if m = ... problem of the basic protocol is location tracking If an adversary constantly observes the replies of a particular tag, she can track the movements of this tag and also the movements of a tag ... secret information of tags Therefore, in Protocol 3, a portable reader R j stores the information f (r j , ti ) idi of each tag Ti where r j and idi are IDs of a portable reader R j and a tag Ti ,...
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Advanced Radio Frequency Identification Design and Applications Part 11 docx
... position of i-th tag The result of a recognition process is a set of recognized tags or combination of tags This set must be one of subsets of T Y is defined as a set of all subsets of T, and it ... ALOHA, and binary search tree algorithm It reduces the user’s consideration for handling the collisions and arbitrations Finally, the installation cost and the maintenance cost of RFID systems ... bluer and so forth The ultra sonic sensor systems and the LRF sensor systems can not detect obstacles or walls, under some surface conditions Second, the RFID systems can handle numerous unique landmarks...
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Advanced Radio Frequency Identification Design and Applications Part 12 ppt
... estimation of a mobile robot on a lattice of RFID tags, Proc IEEE/RSJ Int Conf Intelligent Robots and Systems, pp 1385-1390 12 RFID Tags to Aid Detection of Buried Unexploded Ordnance Keith Shubert and ... detection and identification of buried UXO must be pursued and implemented This chapter presents the results of analytical and experimental efforts that demonstrated the viability of using munition-mounted ... function of r is slightly less than 1/r3 The magnetic field increases linearly with the area of the coil, with the current, and with the number of turns For a given value of r (one meter) and a...
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Advanced Radio Frequency Identification Design and Applications Part 13 docx
... Identification Design and Applications The basic behavior and orientation of the magnetic fields on the surface of the munitions not change as a function of munition depth in the range of 0.3 to 1.5 ... survivability potential These tests were conducted at Battelle’s West Jefferson, Ohio munitions testing facilities A “soft catch” was employed using a combination of Styrofoam and duct tape to reduce ... behind Styrofoam Table Summary of tag acceleration and velocity survivability testing The initial research into the mounting feasibility and potential approaches was analytical; no physical testing...
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Advanced Radio Frequency Identification Design and Applications Part 14 ppt
... analysis and simulation results, the solution depends on the number of tags, i.e q, and the position of these tags, i.e which leaf nodes they are located Moreover, the impact weight of the number of ... layer h which possesses the best trade-off between the number of collided nodes and the number of idle nodes in such layer If we cut off more collided (and useless) nodes, the better identification ... q 2q Number of nodes in the h-th layer of T' 4q q=2048 q=4096 Fig Collided nodes in the hth layer of T’ with different number of tags Note that the length of ID is 96 bits From Fig and 3, we find...
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Advanced Radio Frequency Identification Design and Applications Part 15 pdf
... parts, the RF board PCB2 and the baseband board PCB1 The PCB2 board is mainly composed of antenna and RF module And the PCB1 board is composed of DSP, FPGA, ADC, DAC and some other peripheral ... cores of the baseband board, and this kind of system scheme is more and more prevalent and efficient now The DSP chip can be used to realize the tag’s protocol switching, state transferring, and ... Identification Design and Applications 1st 32bit are protocol control and tags number; 2nd and 3rd 32 bit are command data; And the last 3*32bit are reserved for backup Software design 3.1 Architecture...
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Radio Frequency Identification Fundamentals and Applications, Bringing Research to Practice Part 1 potx
... bridges the gap between theory and practice and brings together a variety of research results and practical solutions in the field of RFID The book is a rich collection of articles written by people ... systems The field aspects of operation conditions are taken into consideration Chapter presents an overview of the RFID identification process and focuses on how RFID systems work in static and ... deterministic and stochastic MAC protocols for RFID systems proposed in standards, specifications and recent literature Their principles are described and their performance is assessed and compared...
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Radio Frequency Identification Fundamentals and Applications, Bringing Research to Practice Part 2 potx
... RFID systems, EPCglobal Class-1 Gen-2] is considered the de facto standard It includes a set of specifications for the hardware of the passive tag and the hardware and software in the reader systems ... of wire with a diameter of 0.3 mm round the ferrite cores with a length of 0.125 m, diameter of 0.005 m and initial permeability of 20 Highlighted the discrepancy between simulation results and ... method of passive RFID tag affixing on the flange of technical gas cylinders is presented The method was developed in Department of Electronic and Communication Systems of Rzeszów University of Technology...
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Radio Frequency Identification Fundamentals and Applications, Bringing Research to Practice Part 3 pdf
... of the Identification Process in RFID Systems conventions are used: a row vector is denoted as V , the i-th component of a vector is denoted ( V )i, and σ( V ) denotes the sum of the values of ... other hand, the identification process analysis of dynamic scenarios has been oriented to determine the Tag Loss Ratio Configuration of actual implementations of RFID systems could make use of the ... passive RFID systems installations In Proc of Characterization of the Identification Process in RFID Systems 47 International Workshop on RFID Technology, Concepts, Applications and Challenges...
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