When Nore Robbins visits her new stepmother, brother, and sister in Louisiana, she is unnerved by the feeling of evil and eerie threats that pervade the plantation.
When Nore Robbins visits her new stepmother, brother, and sister in Louisiana, she is unnerved by the feeling of evil and eerie threats that pervade the plantation
Author: Lois Duncan
Publisher: Turtleback Books
Category: Juvenile Fiction
Fossils allow us to picture the forms of life that inhabited the earth eons ago. But we long to know more: how did these animals actually behave? We are fascinated by the daily lives of our fellow creatures—how they reproduce and raise their young, how they hunt their prey or elude their predators, and more. What would it be like to see prehistoric animals as they lived and breathed? From dinosaurs fighting to their deaths to elephant-sized burrowing ground sloths, this book takes readers on a global journey deep into the earth’s past. Locked in Time showcases fifty of the most astonishing fossils ever found, brought together in five fascinating chapters that offer an unprecedented glimpse at the real-life behaviors of prehistoric animals. Dean R. Lomax examines the extraordinary direct evidence of fossils captured in the midst of everyday action, such as dinosaurs sitting on their eggs like birds, Jurassic flies preserved while mating, a T. rex infected by parasites. Each fossil, he reveals, tells a unique story about prehistoric life. Many recall behaviors typical of animals familiar to us today, evoking the chain of evolution that links all living things to their distant ancestors. Locked in Time allows us to see that fossils are not just inanimate objects: they can record the life stories of creatures as fully alive as any today. Striking and scientifically rigorous illustrations by renowned paleoartist Bob Nicholls bring these breathtaking moments to life.
What would it be like to see prehistoric animals as they lived and breathed? From dinosaurs fighting to their deaths to elephant-sized burrowing ground sloths, this book takes readers on a global journey deep into the earth’s past.
Author: Dean R. Lomax
Publisher: Columbia University Press
Did you know that any straight-line drawing on paper can be folded so that the complete drawing can be cut out with one straight scissors cut? That there is a planar linkage that can trace out any algebraic curve, or even 'sign your name'? Or that a 'Latin cross' unfolding of a cube can be refolded to 23 different convex polyhedra? Over the past decade, there has been a surge of interest in such problems, with applications ranging from robotics to protein folding. With an emphasis on algorithmic or computational aspects, this treatment gives hundreds of results and over 60 unsolved 'open problems' to inspire further research. The authors cover one-dimensional (1D) objects (linkages), 2D objects (paper), and 3D objects (polyhedra). Aimed at advanced undergraduate and graduate students in mathematics or computer science, this lavishly illustrated book will fascinate a broad audience, from school students to researchers.
Asdescribed in Section 184.108.40.206 (p.18), theroadmap algorithmfor general motion planning enables testing whether a linkage is locked in time. A depthfirst search inthe roadmap representation of the configuration space determines all the ...
Author: Erik D. Demaine
Publisher: Cambridge University Press
In busy time only loses hour from work . Ventilation bad . ( 51,652 , Manager and 653 . workers . 401 Piecers , & verage Winders , 108 . makers , 5s . to 6s . 10s . Lace Locked out till next start . Outside , fairly clean ing time if ...
Author: Great Britain. Parliament. House of Commons
The book reports two approaches of implementation of the essential components of a Digital Phase Locked Loop based system for dealing with wireless channels showing Nakagami-m fading. It is mostly observed in mobile communication. In the first approach, the structure of a Digital phase locked loop (DPLL) based on Zero Crossing (ZC) algorithm is proposed. In a modified form, the structure of a DPLL based systems for dealing with Nakagami-m fading based on Least Square Polynomial Fitting Filter is proposed, which operates at moderate sampling frequencies. A sixth order Least Square Polynomial Fitting (LSPF) block and Roots Approximator (RA) for better phase-frequency detection has been implemented as a replacement of Phase Frequency Detector (PFD) and Loop Filter (LF) of a traditional DPLL, which has helped to attain optimum performance of DPLL. The results of simulation of the proposed DPLL with Nakagami-m fading and QPSK modulation is discussed in detail which shows that the proposed method provides better performance than existing systems of similar type.
In: Proceedings of national telemetering conference Weinberg A, Liu B (1974) Discrete time analyses of non-uniform sampling first- and secondorder digital phase-locked loops. IEEE Trans Commun Technol COM-22:123–137 Koizumi T, ...
Author: Basab Bijoy Purkayastha
Category: Technology & Engineering
Phase-Locked Loops (PLLs) are electronic systems that can be used as a synchronized oscillator, a driver or multiplier of frequency, a modulator or demodulator and as an amplifier of phase modulated signals. This book updates the methods used in the analysis of PLLs by drawing on the results obtained in the last 40 years. Many are published for the first time in book form. Nonlinear and deterministic mathematical models of continuous-time and discrete-time PLLs are considered and their basic properties are given in the form of theorems with rigorous proofs. The book exhibits very beautiful dynamics, and shows various physical phenomena observed in synchronized oscillators described by complete (not averaged) equations of PLLs. Specially selected mathematical tools are used ? the theory of differential equations on a torus, the phase-plane portraits on a cyclinder, a perturbation theory (Melnikov's theorem on heteroclinic trajectories), integral manifolds, iterations of one-dimensional maps of a circle and two-dimensional maps of a cylinder. Using these tools, the properties of PLLs, in particular the regions of synchronization are described. Emphasis is on bifurcations of various types of periodic and chaotic oscillations. Strange attractors in the dynamics of PLLs are considered, such as those discovered by Rssler, Henon, Lorenz, May, Chua and others.
In Chapter 3 we are dealing with the second order phase-locked loop system with a low-pass filter. The phase-plane portrait of an ... Chapter 2 The first order continuous-time Phase-Locked Loops 2.1 Equations 8 Equations of Phase-Locked ...
Author: Jacek Kudrewicz
Publisher: World Scientific
Category: Technology & Engineering
Cuba! explores the magic of this vibrant country through more than 75 recipes that will set taste buds on fire and stories that will delight even the most well-seasoned traveler. Brazen, bold, and colorful, Cuba is a country that pulses with life. Fascinated by its people and their endlessly delicious home-cooked cuisine, friends Dan Goldberg and Andrea Kuhn have been visiting this magnetic country, capturing its passion and vibrancy, for the past five years. Dan, an award-winning photographer and Andrea, an acclaimed prop stylist and art director, along with renowned food writer Jody Eddy, bring the best of Cuban food to home kitchens with more than 75 meticulously tested recipes. From Cuban-Style Fried Chicken and Tostones Stuffed with Lobster and Conch, to Squid-ink Empanadas and Mojito Cake with Rum-Infused Whipped Cream, this book offers a unique opportunity to bring a little slice of Cuba into your home and onto your plate.
... a country locked in time, frozen in an.era when its people brimmed with optinmism and a seemingly limitless enthusiasm, spearheaded by the belief that each day would be better than the last, These are the vestiges of yesterday, ...
Author: Dan Goldberg
Publisher: Ten Speed Press
This thesis investigates the dynamics of passively mode-locked semiconductor lasers, with a focus on the influence of optical feedback on the noise characteristics. The results presented here are important for improving the performance of passively mode-locked semiconductor lasers and, at the same time, are relevant for understanding delay-systems in general. The semi-analytic results developed are applicable to a broad range of oscillatory systems with time-delayed feedback, making the thesis of relevance to various scientific communities. Passively mode-locked lasers can produce pulse trains and have applications in the contexts of optical clocking, microscopy and optical data communication, among others. Using a system of delay differential equations to model these devices, a combination of numerical and semi-analytic methods is developed and used to characterize this system.
L. Drzewietzki, S. Breuer, W. Elsäßer, Timing phase noise reduction of modelocked quantumdot lasers by time-delayed optoelectronic feedback. Electron. Lett. 49, 557–559 (2013) 4. M.C. Soriano, J. García-Ojalvo, C.R. Mirasso, I. Fischer, ...
Author: Lina Jaurigue