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  Author: creativelivenew1   |   20 March 2024   |   comments: 0
Physical Layer Security for Wireless Sensing and Communication
Free Download Physical Layer Security for Wireless Sensing and Communication
English | 2022 | ISBN: 183953527X | 386 Pages | EPUB (True) | 11 MB
Physical Layer Security for Wireless Sensing and Communication covers both communication and sensing security from a broad perspective. The main emphasis is on PHY security, although other security measures are covered for the sake of completeness and as a step towards cross-layer security and cognitive security vision. After discussing the features of wireless channels from both the communication and sensing perspectives, the book details their exploitation for secure transmission utilizing various approaches. Wireless sensing and radio environment concepts are also addressed, along with the related security implications in terms of eavesdropping, disruption, manipulation, and, in general, the exploitation of wireless sensing by unauthorised users. Several solutions for these threats from the domains of wireless communication, military radars, and machine learning, are discussed.

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  Author: creativelivenew1   |   13 March 2024   |   comments: 0
Small Viscosity and Boundary Layer Methods Theory, Stability Analysis, and Applications
Free Download Small Viscosity and Boundary Layer Methods: Theory, Stability Analysis, and Applications by Guy Métivier
English | PDF | 2004 | 208 Pages | ISBN : 0817633901 | 14.1 MB
This book has evolved from lectures and graduate courses given in Brescia (Italy), Bordeaux and Toulouse (France};' It is intended to serve as an intro duction to the stability analysis of noncharacteristic multidimensional small viscosity boundary layers developed in (MZl]. We consider parabolic singular perturbations of hyperbolic systems L(u) - £P(u) = 0, where L is a nonlinear hyperbolic first order system and P a nonlinear spatially elliptic term. The parameter e measures the strength of the diffusive effects. With obvious reference to fluid mechanics, it is referred to as a "viscosity." The equation holds on a domain n and is supplemented by boundary conditions on an.The main goal of this book is to studythe behavior of solutions as etends to O. In the interior of the domain, the diffusive effects are negligible and the nondiffusive or inviscid equations (s = 0) are good approximations. However, the diffusive effects remain important in a small vicinity of the boundary where they induce rapid fluctuations of the solution, called layers. Boundary layers occur in many problems in physics and mechanics. They also occur in free boundary value problems, and in particular in the analysis of shock waves. Indeed, our study of noncharacteristic boundary layers is strongly motivated by the analysis of multidimensional shock waves. At the least, it is a necessary preliminary and important step. We also recall the importance of the viscous approach in the theoretical analysis ofconservation laws (see, e.g., [Lax], (Kru], (Bi-Br]).

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  Author: creativelivenew1   |   13 March 2024   |   comments: 0
Single and Cross–Layer Mimo Techniques for Imt–Advanced
Free Download Filippo Meucci, "Single and Cross-Layer Mimo Techniques for Imt-Advanced "
English | ISBN: 8792329500 | 2011 | 228 pages | PDF | 4 MB
In the last two decades, the wireless arena has witnessed the emergence of an astonishing number of technologies which play a part in the definition of new wireless systems. Driven by the pressing capacity demand, the research community has developed several technological enablers. Fundamental technological building blocks that will be part of wireless systems in the near-future definitely include: Orthogonal Frequency Division Multiplexing (OFDM) modulation at the physical (PHY) layer, Multiple Input Multiple.Output (MIMO) systems, and a cross-layer (CL) stack design. While the benefits of OFDM have been recognized for several years, the real capacity improvement of MIMO antennae is still being debated today. As to the lastpoint, even if opportunities for CL have been pointed out for a long time, the impact on the actual legacy systems has not been noticeable, as investors are hesitant to implement the inherent design paradigm shift.Single and Cross-Layer MIMO Techniques for IMT-Advanced will present some advanced MIMO techniques where adaptivity, cross-layer approach, and MIMO antennae are analyzed together to show a deep impact on the sum-capacityachievable over the wireless link.The introduction presents the functional requirements for IMT-A candidate systems and the relation between IEEE802.16 and LTE wireless access networks. Then, in the first part, adaptive strategies are analyzedseparately at the PHY and Medium Access Control (MAC) layers. The second part presents an evolution of the previous approach, providing a cross-layer MIMO-ARQ protocol, where adaptive MIMO schemes, namely SpatialMultiplexing (SM) and STBC Alamouti, are used with ARQ protocol. A Multiple User (MU) network is served in DownLink (DL) with a Round Robin (RR) scheduler; the design is ready to include more advanced schedulers. The ARQstate machine at the MAC layer is aware of per-antenna ARQ. The interaction between the ARQ and the PHY layer, with a per-antenna ACK, allows resource exploitation to increase with per-antenna ACKs, shifting from MIMO Signal Processing Gain to MIMO Protocol Gain with no need for Channel State Information (CSI) feedback. The absence of CSI feedback at the PHY layer is an important characteristic of the proposedMIMO-ARQ cross-layer designs since MIMO CSI feedback (when feasible) drastically reduces the network efficiency.The added degrees of freedom offered by MIMO transmissions can make the difference if correctly exploited both at the physical and medium access layers, in particular for overcoming the problem of low MIMO channel ranks.The advantages of the paradigm shift from signal processing gain to protocol gain - together with the modifications to be applied at the classical protocol stack - are discussed in the final chapter.

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  Author: creativelivenew1   |   30 January 2024   |   comments: 0
Plant Drug Analysis A Thin Layer Chromatography Atlas
Free Download Plant Drug Analysis: A Thin Layer Chromatography Atlas By Sabine Bladt
1996 | 399 Pages | ISBN: 3540586768 | PDF | 117 MB
This second edition of Plant Drug Analysis includes more than 200 updated color photographs of superb quality demonstrating chromatograms of all relevant standard drugs. All drugs presented meet the standard of the official pharmacopoeia and originate from well-defined botanical sources. With this guide the technique of thin layer chromatography can be easily used without previous pharmacognostic training. Only commercially available equipment and reagents are needed, the sources as well as all practical details are given. From the reviews "...should not be missed in any laboratory dealing with crude drug analysis" trends in analytical chemistry "...a unique and remarkable collection...an invaluable guide" Phytochemistry "The color photographs...are unbelievably well done" Analytical Biochemistry "...a required text for any laboratory concerned with the analysis of medicinal plant products" Irish Pharmacy Journal

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  Author: creativelivenew1   |   16 January 2024   |   comments: 0
Boundary–Layer Meteorology 25th Anniversary Volume, 1970–1995
Free Download Boundary-Layer Meteorology: 25th Anniversary Volume, 1970-1995 by John R. Garratt, P.A. Taylor
English | 2010 | ISBN: 9048147409 | 418 Pages | PDF | 16.3 MB
The journal Boundary-Layer Meteorology was started in 1970 and has become the premier vehicle for the publication of research papers in its field.

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  Author: creativelivenew1   |   08 January 2024   |   comments: 0
Chemistry and Radiation Changes in the Ozone Layer
Free Download Chemistry and Radiation Changes in the Ozone Layer By P. J. Crutzen (auth.), Christos S. Zerefos, Ivar S. A. Isaksen, Ioannis Ziomas (eds.)
2000 | 398 Pages | ISBN: 0792365143 | PDF | 13 MB
Recent studies have demonstrated a link between ozone changes caused by human activities and changing UV levels at the Earth's surface, as well as a link to climate through changes in radiative forcing and links to changes in chemical composition. This book draws together key scientists who provide state of the art contributions on the variable ozone layer and the interplay of longwave and shortwave radiative interactions which link ozone, the climate and UV issues.

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  Author: creativelivenew1   |   28 December 2023   |   comments: 0
Single–Layer Brazed Cubic Boron Nitride Abrasive Tools
Free Download Single-Layer Brazed Cubic Boron Nitride Abrasive Tools
by Wenfeng Ding, Biao Zhao, Ning Qian, Haonan Li

English | 2024 | ISBN: 1032677201 | 340 pages | True PDF | 78.81 MB

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  Author: Baturi   |   25 December 2023   |   comments: 0
Multi–Layer Neural Network Implementation
Free Download Multi–Layer Neural Network Implementation
Published 12/2023
MP4 | Video: h264, 1920x1080 | Audio: AAC, 44.1 KHz
Language: English | Size: 546.70 MB | Duration: 1h 30m
Mathematics of Multi-Layer Neural Network Training and Testing and Implementation in C#

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  Author: Baturi   |   05 November 2023   |   comments: 0
Cocoacasts – Building a Modern Networking Layer in Swift
Free Download Cocoacasts – Building a Modern Networking Layer in Swift
Created By Cocoacasts
MP4 | Video: H264, 1920x1080p | Audio: AAC, 44.1 KHz, 2 Ch
Genre: eLearning | Language: English | Duration: 23 Lectures 3 hours 26 minutes | Size: 1.12 GB
Episode 1

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  Author: Baturi   |   13 October 2023   |   comments: 0
Ethical Hacking – Network Security & Network Layer Attack
Free Download Ethical Hacking – Network Security & Network Layer Attack
Last updated 10/2023
Duration: 6h 55m | Video: .MP4, 1280x720 30 fps | Audio: AAC, 48 kHz, 2ch | Size: 2 GB
Genre: eLearning | Language: English
Learn Ethical Hacking with Network Security, Sniffing, Subnetting, Networking, Password Cracking & implement MitM attack

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