New Releases by Colin Powell

The performance of a UV reactor can be described using the concept of UV dose, which is the product of the residence time of a microbe or particle and the intensity, or fluence rate, of UV light hitting that particle in a reactor. The process to model the reactor performance of a UV reactor, hereby known as the reactor performance process (RPP), consists of three separate models: 1) the computational fluid dynamics (CFD) model: the UV fluid flow field modeling, typically performed using commercial software; 2) the fluence rate model: the physics of the intensity of the UV irradiation; and 3) the reactor performance model: RED, for example, an organism-specific metric for delivered UV dose. The combination of these three models to numerically estimate the UV reactor performance has never been subjected to scrutiny for relevancy, efficiency, nor computational expense. The aim of this thesis was to examine and reduce the computational cost of the RPP and as a result of this work, in certain scenarios, the cost of calculating the reactor performance of a UV reactor was reduced from over 300 billion steps to less than 12,000. This was accomplished by optimizing each of the models of the RPP: by focusing on four key factors in CFD modeling (initial condition, mesh size, time step, and particle tracking), the computational cost of that step was reduced by five times; by systematizing fluence rate model implementation, the computational cost of that step was reduced by at least nine times; by using mixing as a proxy for reactor performance in certain lamp orientations, the computational cost was reduced by over 99%. Further scenarios need to be examined where mixing can be used as a proxy for reactor performance; this optimization offered the best reduction in computational cost. This optimization would reduce the overall computational cost of the RPP for more general UV reactors but also provide a different perspective from which to examine the performance of UV reactors.

Este libro es una colección de lecciones y anécdotas personales que han formado la carrera en el servicio público del general de cuatro estrellas y anterior Secretario de Estado Colin Powell. En el corazón de este libro se encuentran las «13 reglas», notas que él ha acumulado en su escritorio, y ahora son base de sus presentaciones de liderazgo en todo el mundo. Las reglas cortas y sencillas de Powell como «enójate y luego supéralo» y «comparte crédito» salen a la luz al revelar historias personales que presentan y amplían sus principios para el liderazgo efectivo: convicción, trabajo duro, y sobre todo, respeto por otros. En el trabajo y en la vida, Powell escribe «es el gesto humano lo que cuenta». Una convincente narrador, Powell comparte las parábolas tanto humorísticas como solemnes que ofrecen sabios consejos sobre cómo triunfar en el lugar de trabajo y más allá. «Confía en tu gente», aconseja mientras delega pequeñas responsabilidades presidenciales a dos ayudantes principiantes. «Haz lo mejor alguien está viendo», les aconseja a aquellos que recién están comenzando, al recordar su propio trabajo de verano cuando era adolescente enviando cajas de soda. Powell combina el conocimiento que ha ganado al servir en los altos rangos de la milicia y en cuatro administraciones presidenciales, así como también las lecciones aprendidas de una crianza difícil en el Bronx y su entrenamiento en ROTC. El resultado es un retrato poderoso de un líder que es prudente, modesto y agradecido por las contribuciones de cada una de las personas con las que trabaja. Este libro de Colin Powell está hecho para inspirar, conmover y sorprender a los lectores. Profundo y revelador, es un brillante y original modelo de liderazgo.

Charlie and Violet were born in Portsmouth at the end of , the Victorian era. Their story is the true story of two , young people being born and raised in a great garrison , town, becoming childhood sweethearts, and then being , separated by the Great War. When Charlie returns from , the Western Front, badly wounded, Violet nurses him back , to health but their relationship is affected by the social , changes caused by the war. Women had found new roles , in society and in the home. This story shows how the , conflict changed the lives of ordinary people like Charlie , and Vi and how they had to struggle to build a new society , from the ashes.,

Né de parents jamaïcains et élevé dans le Bronx, Colin Powell a tout surmonté et tout réussi. D’origine très modeste, il a, dans son pays, les États-Unis, accédé aux plus hautes fonctions de l’armée et de l’État. Il délivre, ici, les recommandations et les conseils qu’il tire de ses expériences professionnelles et de son parcours exceptionnel. Une leçon de courage. Une leçon de leadership. Une leçon de vie. Colin Powell a été chef d’état-major des armées de 1989 à 1993 et Secrétaire d’État de 2001 à 2005.

Né de parents jamaïcains et élevé dans le Bronx, Colin Powell a tout surmonté et tout réussi. D’origine très modeste, il a, dans son pays, les États-Unis, accédé aux plus hautes fonctions de l’armée et de l’État. Il délivre, ici, les recommandations et les conseils qu’il tire de ses expériences professionnelles et de son parcours exceptionnel. Une leçon de courage. Une leçon de leadership. Une leçon de vie. Colin Powell a été chef d’état-major des armées de 1989 à 1993 et Secrétaire d’État de 2001 à 2005.

New York Times Bestselling Author Colin Powell, one of America’s most admired public figures, reveals the unique lessons that shaped his life and career It Worked for Me is a collection of lessons and personal anecdotes that shaped four star-general and former Secretary of State Colin Powell’s legendary career in public service. At its heart are Powell’s “Thirteen Rules,”—notes he accumulated on his desk that served as the basis for the leadership presentations he delivered throughout the world. Powell’s short-but-sweet rules such as “Get mad, then get over it” and “Share credit,” are illuminated by revealing personal stories that introduce and expand on his principles for effective leadership: conviction, hard work, and above all, respect for others. In work and life, Powell writes, “It is the human gesture that counts.” A compelling storyteller, Powell shares parables both humorous and solemn that offer wise advice on succeeding in the workplace and beyond. “Trust your people,” he councils as he delegates presidential briefing responsibilities to two junior aides. “Do your best--someone is watching,” he advises those just starting out, recalling his own teenage summer job shipping cases of soda. Powell combines the insight he gained serving in the top ranks of the military and in four presidential administrations, as well as the lessons learned from his hardscrabble upbringing in the Bronx and his training in the ROTC. The result is a powerful portrait of a leader who was reflective, self-effacing, and grateful for the contributions of every employee, no matter how junior. Powell’s writing--straightforward, accessible, and often very funny--will inspire, move, and surprise readers. Thoughtful and revealing, his book is a brilliant and original blueprint for leadership.

In this enhanced e-book edition of It Worked for Me, you will find twelve exclusive videos featuring first-hand leadership advice and amusing anecdotes from the life of General Colin Powell. Readers also get access to photographs found only in this edition. It Worked for Me is filled with vivid experiences and lessons learned that have shaped the legendary public service career of the four-star general and former Secretary of State Colin Powell. At its heart are Powell''s "Thirteen Rules"—notes he gathered over the years and that formed the basis of his leadership presentations given throughout the world. Powell''s short but sweet rules—among them, "Get mad, then get over it" and "Share credit"—are illustrated by revealing personal stories that introduce and expand upon his principles for effective leadership: conviction, hard work, and, above all, respect for others. In work and in life, Powell writes, "it''s about how we touch and are touched by the people we meet. It''s all about the people." A natural storyteller, Powell offers warm and engaging parables with wise advice on succeeding in the workplace and beyond. "Trust your people," he counsels as he delegates presidential briefing responsibilities to two junior State Department desk officers. "Do your best—someone is watching," he advises those just starting out, recalling his own teenage summer job mopping floors in a soda-bottling factory. Powell combines the insights he has gained serving in the top ranks of the military and in four presidential administrations with the lessons he''s learned from his immigrant-family upbringing in the Bronx, his training in the ROTC, and his growth as an Army officer. The result is a powerful portrait of a leader who is reflective, self-effacing, and grateful for the contributions of everyone he works with. Colin Powell''s It Worked for Me is bound to inspire, move, and surprise readers. Thoughtful and revealing, it is a brilliant and original blueprint for leadership. Please note that due to the large file size of these special features this enhanced e-book may take longer to download then a standard e-book.

We extract and analyze the high-current regions produced in the turbulent flow. Basic parameters of these regions are abstracted, and we build one dimensional models including non-ideal MHD, and radiative transfer. For sufficiently high temperatures, an instability resulting from the temperature dependence of the Ohmic resistivity is found. This instability concentrates current sheets, resulting in the possibility of rapid heating from temperatures on the order of 600 Kelvin to 2000 Kelvin in magnetorotationally turbulent regions of protoplanetary disks. This is a possible local mechanism for the melting of chondrules and the formation of other high-temperature materials in protoplanetary disks.

A Celtic king dies. He leaves a realm in West Britain without an heir.The inhabitants of a neighbouring Saxon kingdom see the chance to invade.This bold undertaking appears straight forward to the invaders...However, the fixations of intoxicated and audacious men do not always deliver the desired outcome, when up against cold reality.This gripping novel is based on the real history of Britain back in the Dark Ages of the 6th Century.

#1 NEW YORK TIMES BESTSELLER • “A great American success story . . . an endearing and well-written book.”—The New York Times Book Review Colin Powell is the embodiment of the American dream. He was born in Harlem to immigrant parents from Jamaica. He knew the rough life of the streets. He overcame a barely average start at school. Then he joined the Army. The rest is history—Vietnam, the Pentagon, Panama, Desert Storm—but a history that until now has been known only on the surface. Here, for the first time, Colin Powell himself tells us how it happened, in a memoir distinguished by a heartfelt love of country and family, warm good humor, and a soldier’s directness. My American Journey is the powerful story of a life well lived and well told. It is also a view from the mountaintop of the political landscape of America. At a time when Americans feel disenchanted with their leaders, General Powell’s passionate views on family, personal responsibility, and, in his own words, “the greatness of America and the opportunities it offers” inspire hope and present a blueprint for the future. An utterly absorbing account, it is history with a vision.

32-page full-color booklet about the September 26, 2007, microburst storm that devastated Castine, Maine. A compilation of photos and stories from the Castine Patriot newspaper coverage with new material and photos.

Colin Powell est l''incarnation du rêve américain. Né de parents jamaïcains, il a connu la jungle des rues avant d''entamer une brillante carrière dans l''armée puis à Washington. Le reste appartient à l''histoire. L''homme qui a été à la tête des armées des États-Unis, aujourd''hui l''une des figures qui comptent dans la vie politique américaine, raconte son parcours : du bourbier vietnamien aux garnisons de Corée, du Sud profond aux couloirs du Pentagone et aux antichambres de la Maison-Blanche, sous Reagan et Bush, à l''époque de la Guerre des Étoiles, comme au moment de l''Irangate ou de la guerre du Golfe.