... navy He worked in Marine Construction from 1946 to 1967 and from 1967 to 1971 in Offshore Construction, ending as President of Ben C Gerwick, Inc., and Manager of Offshore Construction for Santa ... to many of these concurrently, and it will be necessary to consider their interaction with each other and with the construction activity 1.2 Distances and Depths Most marine and offshore construction ... Ocean, Arabian Sea, and offshore q 2007 by Taylor & Francis Group, LLC Construction of Marine and Offshore Structures 32 Australia; as hurricanes in the Atlantic and South Pacific; and as typhoons...
Ngày tải lên: 09/07/2014, 17:20
... navy He worked in Marine Construction from 1946 to 1967 and from 1967 to 1971 in Offshore Construction, ending as President of Ben C Gerwick, Inc., and Manager of Offshore Construction for Santa ... to many of these concurrently, and it will be necessary to consider their interaction with each other and with the construction activity 1.2 Distances and Depths Most marine and offshore construction ... Ocean, Arabian Sea, and offshore q 2007 by Taylor & Francis Group, LLC Construction of Marine and Offshore Structures 32 Australia; as hurricanes in the Atlantic and South Pacific; and as typhoons...
Ngày tải lên: 10/08/2014, 18:22
Tài liệu Applications of Robotics and Artificial Intelligence to Reduce Risk and Improve Effectiveness pdf
... for selecting and implementing of applications The committee used its review of technology and information on Army doctrine, prior reports on Army applications of AI and robotics, and its combined ... APPLICATIONS OF ROBOTICS AND ARTIFICIAL INTELLIGENCE Contents Acknowledgements and Contents Background Summary of the Technology Criteria for Selection of Applications Recommended Applications ... identifying high-payoff applications of robotics and artificial intelligence technology Get any book for free on: www.Abika.com 36 APPLICATIONS OF ROBOTICS AND ARTIFICIAL INTELLIGENCE 32 OTHER CONSIDERATIONS...
Ngày tải lên: 13/12/2013, 01:15
Ecotoxicological Testing of Marine and Freshwater Ecosystems Emerging Techniques, Trends, and Strategies pot
... our understanding of the aquatic environment and its response to disturbances The book as a whole promotes the understanding of the structure, function, and performance of healthy and damaged ... fresh and marine waters A brief description of the type of test, collection method for the test organism, volume of test material needed, suitable test matrix, level of standardization, and references ... comparison of standard and new testing designs Arch Environ Contam Toxicol 39: 462–468 Hong, J.S and Reish, D.J 1987 Acute toxicity of cadmium to eight species of marine amphipod and isopod crustaceans...
Ngày tải lên: 06/03/2014, 18:21
Comparison of composition (nutrients and other substances) of organically and conventionally produced foodstuffs: a systematic review of the available literature doc
... Rebarz, K., Influence of irrigation and cultivation system of potatoes on the yields, chemical composition of tubers and uptake of nutrient components Journal of Research and Applications in Agricultural ... Examination of full texts resulted in the exclusion of 145 studies for a variety of reasons including absence of peer review, no relevant outcome measure and lack of direct comparison of organic vs other ... Study quality 15 5.4 Comparison of content of nutrients and other substances in crops 16 5.5 Comparison of content of nutrients and other substances in livestock products 17 ...
Ngày tải lên: 28/03/2014, 19:20
dictionary of architecture and building construction
... side construction in the base of a drainage manhole to control the flow of water and provide a base to stand on benchmark in engineering, computing and technology, a predefined standard or set of ... kind of putty which consists of bituminous products and elastomers bituminous roofing any waterproof roofing which is bitumen based; often bituminous felt roofing see bituminous felt roofing ... non-commercial area of land and associated buildings to accommodate the taking off, landing and administration of aircraft air filter in air conditioning, a porous barrier to collect impurities and particles...
Ngày tải lên: 29/04/2014, 15:41
Handbook of food and beverage fermentation technology
... and Barbee W Tucker 40 Handbook of Vitamins: Second Edition, Revised and Expanded, edited by Lawrence J Machlin 41 Handbook of Cereal Science and Technology, Klaus J Lorenz and Karel Kulp 42 Food ... Revised and Expanded, edited by Seppo Salminen and Atte von Wright 86 Handbook of Vegetable Science and Technology: Production, Composition, Storage, and Processing, edited by D K Salunkhe and S ... Nutrition, and Biotechnology, edited by Casimir C Akoh and David B Min 89 Spice Science and Technology, Kenji Hirasa and Mitsuo Takemasa 90 Dairy Technology: Principles of Milk Properties and Processes,...
Ngày tải lên: 23/05/2014, 12:08
APPLICATIONS OF ROBOTICS AND ARTIFICIAL INTELLIGENCE TO REDUCE RICH AND IMPROVE EFFECTIVENESS doc
... for selecting and implementing of applications The committee used its review of technology and information on Army doctrine, prior reports on Army applications of AI and robotics, and its combined ... APPLICATIONS OF ROBOTICS AND ARTIFICIAL INTELLIGENCE Contents Acknowledgements and Contents Background Summary of the Technology Criteria for Selection of Applications Recommended Applications ... identifying high-payoff applications of robotics and artificial intelligence technology Get any book for free on: www.Abika.com 36 APPLICATIONS OF ROBOTICS AND ARTIFICIAL INTELLIGENCE 32 OTHER CONSIDERATIONS...
Ngày tải lên: 27/06/2014, 18:20
Theory and applications of ofdm and cdma wideband wireless communications phần 1 ppsx
... Theory and Applications of OFDM and CDMA Theory and Applications of OFDM and CDMA Wideband Wireless Communications Henrik Schulze and Christian Luders ¨ Both of Fachhochschule S¨ ... bandwidth of the two components (real and imaginary part) of the baseband signal, 20 BASICS OF DIGITAL COMMUNICATIONS resulting in one signal of bandwidth B instead of two (real) signals of bandwidth ... ak = Theory and Applications of OFDM and CDMA 2005 John Wiley & Sons, Ltd T T cos 2π k t x(t) dt T Henrik Schulze and Christian L¨ ders u (1.2) BASICS OF DIGITAL COMMUNICATIONS and T k (1.3)...
Ngày tải lên: 09/08/2014, 19:22
Theory and applications of ofdm and cdma wideband wireless communications phần 2 ppt
... are random variables that are statistically independent and identically distributed for different values of k To be more specific, the random phase θk is assumed to be independent of νk and τk and ... amplitude fluctuations of the received time signal for νmax = 50 Hz, corresponding for example, to a transmit signal at 900 MHz for a vehicle Theory and Applications of OFDM and CDMA 2005 John ... digitally modulated symbol The amplitude and the phase fluctuate randomly The typical frequency of the variation is of the order of νmax corresponding to a timescale of the variations given by −1 tcorr...
Ngày tải lên: 09/08/2014, 19:22
Theory and applications of ofdm and cdma wideband wireless communications phần 3 ppt
... convolutional codes, it is often convenient to work with code words of finite length, but it is not necessary, and the length is not determined by the code Theory and Applications of OFDM and CDMA 2005 ... L-value of the random bit S We note that L(S = s) = sL (3.10) The L-value of a random bit S (written as a sign) has a very natural interpretation as a soft bit The sign of L says which of the ... Deep space communication was one of the first applications of such a scheme with a convolutional code and an RS code (see (McEliece and Swanson 2001)) Because of the power limitation, the physical...
Ngày tải lên: 09/08/2014, 19:22
Theory and applications of ofdm and cdma wideband wireless communications phần 4 ppt
... channel and parallelize the given data stream in an appropriate way Theory and Applications of OFDM and CDMA 2005 John Wiley & Sons, Ltd Henrik Schulze and Christian L¨ ders u 146 OFDM Frequency ... baseband and to the center frequency fc in the passband, with negative k for the lower sideband and positive k for the upper sideband For reasons of symmetry, we may then choose the number of carriers ... mathematical concept of a field stands for a system of numbers, where addition and multiplication and the corresponding inverses are defined and which is commutative The existence of an (multiplicative)...
Ngày tải lên: 09/08/2014, 19:22
Theory and applications of ofdm and cdma wideband wireless communications phần 5 ppsx
... I (t) of an OFDM signal 168 OFDM Number of samples 15,000 10,000 5000 0 0.5 1.5 Amplitude 2.5 3.5 Figure 4.22 Histogram for the amplitude of an OFDM signal a Gaussian random variable and the ... intuitively clear and it can easily be visualized by ∗ means of the vector space structure of random variables Then E el xm is the scalar product of the random variables (vectors) el and xm , and E{|el ... (Banelli and Baruffa 2001; D’Andrea et al 1996) and references therein) 4.3 Synchronization and Channel Estimation Aspects for OFDM Systems 4.3.1 Time and frequency synchronization for OFDM systems...
Ngày tải lên: 09/08/2014, 19:22
Theory and applications of ofdm and cdma wideband wireless communications phần 6 pot
... function of Eb /N0 for such a channel and 16-QAM transmission with code rate Rc = 1/2 and a huge time and frequency interleaving over the bandwidth of K = 768 carriers and the time of I /K = 360 OFDM ... in frequency and time direction that permutes pseudorandomly the QAM symbols of K carriers and L OFDM symbols Thus, the interleaving is over a bandwidth B = K/T and a time frame of length TF ... SNR [dB] 15 20 Figure 4.72 Simulation of a wideband OFDM system with 64-QAM for a very fast and frequency-selective channel 234 OFDM OFDM with 16- QAM and Rc = 0.5 10 n T = 0.01 t /∆ = 0.0417...
Ngày tải lên: 09/08/2014, 19:22
Theory and applications of ofdm and cdma wideband wireless communications phần 7 ppsx
... very serious candidate and, at the end of the project, an OFDM system was standardized in 1993 (see (EN300401 2001a) for a recent update of the standard) An exhaustive treatment of the DAB system ... Architecture of a cellular mobile radio network Handover When an MS moves from one cell to another, a handover occurs One distinguishes between hard and soft handover For a hard handover, as it ... m, run of zeros of length m − 1, and 2m−r−2 runs of zeros and 2m−r−2 , r = 1, 2, , m − runs of ones, each of length r + a5 = X5 + a4 (0) X4 + a3 (1) X3 + a2 (0) X2 a1 (0) a0 = X1 Run of length:...
Ngày tải lên: 09/08/2014, 19:22
Theory and applications of ofdm and cdma wideband wireless communications phần 8 pot
... in a soft handover should be kept small To illustrate this soft handover effort, Figure 5.23 shows the fraction of connections involved in a soft (or softer) handover and the mean number of active ... signals has been set to 0, and dB In Figure 5.22, the corresponding probability functions of the signal levels with and without soft handover are compared; the case of no soft handover is represented ... part have to be selected on the basis of the MS velocity, the standard deviation and correlation length of the long-term fading and the tolerable rate of handovers Though it is very difficult to...
Ngày tải lên: 09/08/2014, 19:22
Theory and applications of ofdm and cdma wideband wireless communications phần 9 pot
... phase (random access) and the transmission of short packets, an openloop PC has been defined Furthermore, special rules are specified for the slotted mode and the soft handover For a soft handover, ... Correspondingly, GPS offers two kinds of services: a precise positioning service (PPS) – primarily for military and other authorized applications – and a less precise standard positioning service ... of the signals of at least four satellites Satellite signals are transmitted on two frequency bands, namely, on the so-called L1 band with a carrier frequency of f1 = 154 · f0 = 1575.42 MHz and...
Ngày tải lên: 09/08/2014, 19:22
Theory and applications of ofdm and cdma wideband wireless communications phần 10 docx
... low and medium rate services where only a part of the time slot is needed for data transmission and reception Hence, though no soft handover is applied and no signals are combined, the hard handover ... managed by a soft handover To be consistent with the other sections and subsections, the notation downlink (DL) and uplink (UL) is used throughout this and the next subsection though the standardization ... combining of the received signals With respect to their role in a soft handover procedure, neighboring cells are separated into candidate, active and remaining sets To be a member of the candidate...
Ngày tải lên: 09/08/2014, 19:22