African Fractals

African Fractals

Author: Ron Eglash

Publisher:

Published: 1999

Total Pages: 258

ISBN-13: 9780813526140

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Fractals are characterized by the repetition of similar patterns at ever-diminishing scales. Fractal geometry has emerged as one of the most exciting frontiers on the border between mathematics and information technology and can be seen in many of the swirling patterns produced by computer graphics. It has become a new tool for modeling in biology, geology, and other natural sciences. Anthropologists have observed that the patterns produced in different cultures can be characterized by specific design themes. In Europe and America, we often see cities laid out in a grid pattern of straight streets and right-angle corners. In contrast, traditional African settlements tend to use fractal structures-circles of circles of circular dwellings, rectangular walls enclosing ever-smaller rectangles, and streets in which broad avenues branch down to tiny footpaths with striking geometric repetition. These indigenous fractals are not limited to architecture; their recursive patterns echo throughout many disparate African designs and knowledge systems. Drawing on interviews with African designers, artists, and scientists, Ron Eglash investigates fractals in African architecture, traditional hairstyling, textiles, sculpture, painting, carving, metalwork, religion, games, practical craft, quantitative techniques, and symbolic systems. He also examines the political and social implications of the existence of African fractal geometry. His book makes a unique contribution to the study of mathematics, African culture, anthropology, and computer simulations.


Robot Manipulator Control

Robot Manipulator Control

Author: Frank L. Lewis

Publisher: CRC Press

Published: 2003-12-12

Total Pages: 646

ISBN-13: 9780203026953

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Robot Manipulator Control offers a complete survey of control systems for serial-link robot arms and acknowledges how robotic device performance hinges upon a well-developed control system. Containing over 750 essential equations, this thoroughly up-to-date Second Edition, the book explicates theoretical and mathematical requisites for controls design and summarizes current techniques in computer simulation and implementation of controllers. It also addresses procedures and issues in computed-torque, robust, adaptive, neural network, and force control. New chapters relay practical information on commercial robot manipulators and devices and cutting-edge methods in neural network control.


Quick Response Manufacturing

Quick Response Manufacturing

Author: Rajan Suri

Publisher: CRC Press

Published: 2020-10-28

Total Pages: 575

ISBN-13: 1482278103

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Developed by the author and now being employed by a number of businesses, Quick Response Manufacturing (QRM) is an expansion of time-based competition, aimed at a single target with the goal of reducing lead times. The key difference between QRM and other time-based programs is that QRM covers an entire organization, from the shop floor to the office, to sales and beyond. Providing guidelines for establishing a QRM enterprise, this volume builds upon kaizen, TQM, TPM, and other practice to help organizations streamline all functions of their operation. It shows how to quickly introduce products, along with ways to rethink materials and production management.


Divine Names on the Spot

Divine Names on the Spot

Author: Fabio Porzia

Publisher:

Published: 2023

Total Pages: 0

ISBN-13: 9789042951617

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'Ancient Greek and Semitic languages resorted to a large range of words to name the divine. Gods and goddesses were called by a variety of names and combinations of onomastic attributes. This broad lexicon of names is characterised by plurality and a tendency to build on different sequences of names; therefore, the Mapping Ancient Polytheisms project focuses on the process of naming the divine in order to better understand the ancient divine in terms of a plurality in the making. A fundamental rule for reading ancient divine names is to grasp them in their context - time and place, a ritual, the form of the discourse, a cultural milieu...: a deity is usually named according to a specific situation. From Artemis Eulochia to al-Lat, al-'Uzza and Manat, from Melqart to "my rock" in the biblical book of Psalms, this volume journeys between the sanctuary on Mount Gerizim and late antique magical practices, revisiting rituals, hymnic poetry, oaths of orators and philosophical prayers. While targeting different names in different contexts, the contributors draft theoretical propositions towards a dynamic approach of naming the divine in antiquity.'


Unconquerable Nation

Unconquerable Nation

Author: Brian Michael Jenkins

Publisher: Rand Corporation

Published: 2006

Total Pages: 236

ISBN-13: 0833038931

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The author presents a clear-sighted and sobering analysis of where we are today in the struggle against terrorism. Jenkins, an internationally renowned authority on terrorism, distills the jihadists' operational code and outlines a pragmatic but principled approach to defeating the terrorist enterprise. We need to build upon our traditions of determination and self-reliance, he argues, and above all, preserve our commitment to American values.


Freedom Dreams

Freedom Dreams

Author: Robin D.G. Kelley

Publisher: Beacon Press

Published: 2002-06-27

Total Pages: 264

ISBN-13: 0807009784

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Kelley unearths freedom dreams in this exciting history of renegade intellectuals and artists of the African diaspora in the twentieth century. Focusing on the visions of activists from C. L. R. James to Aime Cesaire and Malcolm X, Kelley writes of the hope that Communism offered, the mindscapes of Surrealism, the transformative potential of radical feminism, and of the four-hundred-year-old dream of reparations for slavery and Jim Crow. From'the preeminent historian of black popular culture' (Cornel West), an inspiring work on the power of imagination to transform society.


Lost Libraries

Lost Libraries

Author: J. Raven

Publisher: Springer

Published: 2004-01-31

Total Pages: 308

ISBN-13: 0230524257

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This pioneering volume of essays explores the destruction of great libraries since ancient times and examines the intellectual, political and cultural consequences of loss. Fourteen original contributions, introduced by a major re-evaluative history of lost libraries, offer the first ever comparative discussion of the greatest catastrophes in book history from Mesopotamia and Alexandria to the dispersal of monastic and monarchical book collections, the Nazi destruction of Jewish libraries, and the recent horrifying pillage and burning of books in Tibet, Bosnia and Iraq.


France in Black Africa

France in Black Africa

Author: Francis Terry McNamara

Publisher: U.S. Government Printing Office

Published: 1989

Total Pages: 316

ISBN-13:

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When, in 1960, France granted independence to its colonies in West and Central Africa-an empire covering an area the size of the contiguous United States-the French still intended to retain influence in Africa. Through a system of accords with these newly independent African nations, based upon ties naturally formed over the colonial years, France has succeeded for three decades in preserving its position in African affairs. The course of Franco-African relations in the near future, though, is less than certain. In this book, Ambassador Francis Terry McNamara outlines France's acquisition and administration of its Black African empire and traces the former colonies' paths to independence. Drawing upon that background, the ambassador examines the structure of post-independence Franco-African relations and recent strains on those relations, especially African economic crises and the French tendency to focus on Europe. Because of those strains, he suggests, France alone may be unable to support its former dependencies much longer. He believes that long-term solutions to African problems will have to involve international organizations like the World Bank and International Monetary Fund as well as other nations such as the United States and France's European partners. -- From Foreword.


Living Downtown

Living Downtown

Author: Paul E. Groth

Publisher: Univ of California Press

Published: 1994-01-01

Total Pages: 428

ISBN-13: 9780520068766

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From the palace hotels of the elite to cheap lodging houses, residential hotels have been an element of American urban life for nearly two hundred years. Since 1870, however, they have been the target of an official war led by people whose concept of home does not include the hotel. Do these residences constitute an essential housing resource, or are they, as charged, a public nuisance? Living Downtown, the first comprehensive social and cultural history of life in American residential hotels, adds a much-needed historical perspective to this ongoing debate. Creatively combining evidence from biographies, buildings and urban neighborhoods, workplace records, and housing policies, Paul Groth provides a definitive analysis of life in four price-differentiated types of downtown residence. He demonstrates that these hotels have played a valuable socioeconomic role as home to both long-term residents and temporary laborers. Also, the convenience of hotels has made them the residence of choice for a surprising number of Americans, from hobo author Boxcar Bertha to Calvin Coolidge. Groth examines the social and cultural objections to hotel households and the increasing efforts to eliminate them, which have led to the seemingly irrational destruction of millions of such housing units since 1960. He argues convincingly that these efforts have been a leading contributor to urban homelessness. This highly original and timely work aims to expand the concept of the American home and to recast accepted notions about the relationships among urban life, architecture, and the public management of residential environments.


The Geology of Liberia

The Geology of Liberia

Author: Robert Lee Hadden

Publisher:

Published: 2006

Total Pages: 182

ISBN-13:

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This bibliography on the water and geological information or Liberia was begun in 1995 as a request through the US Department or State by the Government or Liberia. It brings together selected citations from a variety of different cartographic, geographical, geological and hydrological resources and specialized library collections. Most of the citations have location information on where these items can be located and used on site, and either borrowed through inter-library loan or purchased through a commercial document delivery services.