grounding of electrical systems and equipment

Ngày tải lên: 16/02/2014, 19:02

... a t e random number i n [ , ) ∗/ double r e t = ( double ) rand ( ) ; return r e t / (RAND MAX+1); } i n t s a m p l e g e o m e t r i c r v ( double p ) { double q ; i n t n = ; { q = rand double ... formatted data and generating a report One of the common formats for interchange of formatted data is ’tab delimited’ where each line corresponds to a single record The individual fields of the record ... 3.4 ’wc’ is a unix utility that display the count of characters, words and lines present in a file If no file is specified it reads from the standard input If more than one file name is specified...

Ngày tải lên: 25/04/2013, 08:07

... Introduction Office Ergonomics and Occupational Health Principles for Designing an Office Workstation 4 Furniture and Equipment to be Selected Development and Use of Checklists 12 Try-outs and Consultation ... SELECTION OF OFFICE FURNITURE AND EQUIPMENT Introduction The Ergonomics Unit at Worksafe Australia receives frequent requests for advice on the purchase of furniture and equipment for offices It ... desks and other equipment such as footrests and document holders These activities led to the Unit developing a series of checklists for the ergonomic evaluation of office furniture and equipment...

Ngày tải lên: 08/03/2014, 13:20

Ngày tải lên: 08/03/2014, 14:20

... the systems are proposed The integrability of quasihomogeneous planar systems is studied in [1, 3], and the existence of a link between the Kowalevskaya exponents of quasihomogeneous systems and ... 7, 8] and using by the invariant manifolds of the systems [6] As we know, the existence of inverse integrating factors gives a lot of information on dynamics, integrability of the systems and so ... integrability of autonomous systems and quasihomogeneous polynomial systems; for more details see [1–6] In [5], several techniques for searching first integrals of nth autonomous systems by using...

Ngày tải lên: 22/06/2014, 19:20

... degree in systems engineering, and the Ph.D degree in electrical engineering from the University of Maryland, College Park, in 1997 and 2000, respectively She joined the Department of Electrical ... multiuser MIMO systems Wendi B Heinzelman is an Assistant Professor in the Department of Electrical and Computer Engineering at the University of Rochester She received a B.S degree in electrical ... Assistant Professor with the Department of Electrical Engineering and Computer Science His area of interest mainly focuses on signal processing for wireless sensors and ad hoc networks and on multiuser...

Ngày tải lên: 23/06/2014, 00:20

... conferences and Chairman of EUSIPCO-96 and NSIP-03 He is an Associate Editor of “Multidimensional Systems and Signal Processing” and a Member of the Editorial Board of “Signal Processing” and “IEEE ... and Systems and corecipient of the NORSIG 94 Best Paper Award He is the coauthor of over 250 publications Giovanni L Sicuranza is Professor of signal and image processing and Head of the Image ... currently a Professor and Head of the Institute of Signal Processing, Tampere University of Technology, Tampere, Finland His research interests include nonlinear signal and image processing and analysis,...

Ngày tải lên: 23/06/2014, 01:20

... Total RESULTS AND DISCUSSION 3.1 Typology of the poultry production systems The scale of poultry breeding and the type of poultry races are really diversified in each ecological zone of Long An ... varies according to the number of doses and its probability of being administered The scenarios are specific for each species (chickens and ducks) and will vary in terms of protection outcome which ... collection of official data concerning the poultry production from the reports of the Department of Livestock Production (DLP), FAO, the General Statistics Office (GSO), the Veterinary Services and...

Ngày tải lên: 06/08/2014, 18:22

... elements of Γ \ Γ6 Then exactly two coordinates of x are non-zero, say xi and xi , and exactly two coordinates of y are non-zero, say yj and yj If {i, i } ∩ {j, j } = ∅ then (x|y) = and x and y ... v5 Each of these is a permutation of the symbols coordinates of V If we call these permutations a, b and c, respectively, we see that a, bab, cbabc and cac are the standard generators of the ... automorphism of ∆, and hence to an automorphism of Γ Returning now to the E7 case, we note each of these automorphisms is actually an extension of an automorphism of ∆(E6 ) For i ≤ this is clear, and...

Ngày tải lên: 07/08/2014, 21:20

... structural systems such as high-rise buildings, long-span bridges and offshore platforms often require inspection and maintenance for purpose of sustainable and safe usage The state of these large ... moment of inertia K ii Stiffness matrix of internal DOFs of a substructure Lt Length of an acceleration time history L Length m Mass per unit length M ii Mass matrix of internal DOFs of a substructure ... frequency and time domains, parametric and nonparametric models, deterministic and stochastic approaches, online and offline identification, and classical and non-classical methods Ljung and Glover...

Ngày tải lên: 11/09/2015, 10:00

... or ‘OFF’ depending on the status of the operand bit that has been assigned to it A NO condition is ‘ON’ if the operand bit is ‘ON’ and it is ‘OFF’ when the operand bit is ‘OFF’ On the other hand, ... condition is ‘ON’ if the operand bit is ‘OFF’ and it is ‘OFF’ when the operand bit is ‘ON’ In short, an NO condition simply follows the bit status (on => on and off => off) and an NC condition follows ... distance 12 Practical Troubleshooting of Electrical Equipment and Control Circuits and quantum of power Distribution circuits where typically the amount of power and distance involved are both lower,...

Ngày tải lên: 07/03/2014, 08:20

... thức, entropy H = 4.07 bit/ký hiệu Lưu ý: Hãy xem xét câu sau: "I not knw wheter this is undrstandble." Mặc dù thực tế số chữ tích câu bạn làm câu văn Nói cách khác, có nhiều khả dự phòng văn ... hóa đặc biệt để khắc phục ảnh hưởng nhiễu Hai khía cạnh đưa Shannon báo “A Maththemathical Theroy of Communication” xuất năm 1948 Bell System Technical Journal - nơi đưa lý thuyết thông tin Shannon ... định lý quan trọng cho kỹ sư truyền thông Tài liệu tham khảo C E Shannon "A Mathematical Theory of Communication." Bell System Technical Journal, Vol 27, 1948 Tất kỹ sư truyền thông phải đọc báo...

Ngày tải lên: 18/09/2012, 10:13

... the channel estimation for OFDM systems and system capacity for MIMO-OFDM systems, this chapter briefly introduces the background of OFDM systems and MIMO systems OFDM is an effective technology ... Synchronization of OFDM systems 38 2.2.5 Advantages and disadvantages of OFDM systems 39 2.3 MIMO systems 40 2.3.1 Basic MIMO system model 40 2.3.2 Functions of MIMO systems ... 2.2 OFDM systems 20 2.2.1 Basic principles and characteristics for OFDM systems 21 2.2.2 Peak-to-Average (PAR) of OFDM systems 30 2.2.3 Channel estimation for OFDM systems...

Ngày tải lên: 20/11/2012, 11:28

... categorized in terms of duration and type of inundation We proposed levels based on duration of inundation (shortterm, long-term, persistent and non-inundation) and types of inundation (rainy, ... Short-term and Heavy rainy, SDG: Short-term and Drainage, LSD: Long-term and Stagnant, LHT: Long-term and Heavy rainy, LMK: Long-term and Monsoon flood, PDL: Persistent and Drainage, PHS: Persistent and ... evaluation of water supply and sanitation systems of low income urban community in Dhaka, Bangladesh, Journal of Water and Health, IWA, vol.10 Murray C J., Salomon J S., Mathers C D and Lopez...

Ngày tải lên: 05/09/2013, 10:15

... of the growth of tetracycline-resistant or tetracycline-degrading bacteria and the mechanism of tetracycline degradation MATERIALS AND METHODS Water samples were collected from the effluent of ... Tahara M., Shimizu K and Nisimura T (2008) Monitoring of PPCPs in Aquatic Environments in Japan and Evaluation of Removal Efficiency on Assumption of Water Purification Process, J of Japan Society ... Characteristics of Pharmaceuticals in Wastewater Treatment, - 326 - Journal of Water and Environment Technology, Vol 8, No.4, 2010 J of Water and Waste, 50(7), 587-593 Wen X., Jia Y., and Li J., (2009)...

Ngày tải lên: 05/09/2013, 10:15

... with electrical energy on demand Stand alone systems are designed to work independent of the electric utility grid, and are designed and sized to supply certain DC and/ or AC loads These stand ... Industrial PV systems offer high reliability and minimal maintenance The demand for off-grid industrial PV systems is expected to continue to expand in response to the continued growth of the telecommunications ... given to the current and future PV solar systems market demand including their current and future economics PV systems are modular by nature, meaning that systems can be expanded and components easily...

Ngày tải lên: 05/09/2013, 16:10

... Soft-NC is the scheduling that satisfies the execution of the software modules in real time Recently, NC systems have advanced from being closed systems to being open and distributed systems and ... invented the method of automatic control of the weaving of fabrics with a loom machine by using punch cards and this method was the beginning of the concept of NC The concept of NC was actually ... passing one slit of the rotation disk and one of the slits A, B, or Z on a fixed slit panel Slits A and B are arranged for a phase difference of 90 degrees and the electric signal of the output is...

Ngày tải lên: 08/09/2013, 20:50

... resistance of the copper of the wire of the secondary resistance of losses for Foucault and hysteresis distributed capacitance of the winding of the primary distributed capacitance of the winding of ... voltage of PINCH-OFF or "strangulation of the channel" defined in the curves of exit of the transistor, whose module agrees numerically with the voltage of cut in the curves of input of the transistor ... of the secondary (primary open) inductance of dispersion of the primary L2 (1-k) / n2 R1 R2 R0 C1 C2 inductance of reflected dispersion of the secondary resistance of the copper of the wire of...

Ngày tải lên: 23/10/2013, 16:15

... business performance and process requirements 13 Develop delivery plan 14 Build a proof of concept to test all systems functions and requirements Test APIs and architectural designs of the applications ... CDMA, and GSM 3G is the third-generation of wireless It is expected to reach maturity between the years 2003 and 2005 3G is expected to delver enhanced voice and data and even video It is bandwidth ... challenges, and utilize the products and services offered Financial institutions must drive to enhance the systems delivery to create layers of an open system environment Those who will use standard...

Ngày tải lên: 26/10/2013, 16:15

... resistance of the copper of the wire of the secondary resistance of losses for Foucault and hysteresis distributed capacitance of the winding of the primary distributed capacitance of the winding of ... voltage of PINCH-OFF or "strangulation of the channel" defined in the curves of exit of the transistor, whose module agrees numerically with the voltage of cut in the curves of input of the transistor ... of the secondary (primary open) inductance of dispersion of the primary L2 (1-k) / n2 R1 R2 R0 C1 C2 inductance of reflected dispersion of the secondary resistance of the copper of the wire of...

Ngày tải lên: 27/10/2013, 16:15