Xem 1-20 trên 35 kết quả The four forces
  • There are few physical phenomena so generally studied which are as misunderstood as the phenomenon of flight. Over the years many books have been written about flight and aeronautics (the science of flight). Some books are written for training new aeronautical engineers, some for pilots, and some for aviation enthusiasts. Books written to train engineers often quickly delve into complicated mathematics, which is very useful for those who wish to make detailed calculations.

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  • Medical imaging has been transformed over the past 30 years by the advent of computerized tomography (CT), magnetic resonance imaging (MRI), and various advances in x-ray and ultrasonic techniques. An enabling force behind this progress has been the (so far) exponentially increasing power of computers, which has made it practical to explore fundamentally new approaches.

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  • Based on the charge given to this Task Force, we are recommending a general framework to use in dealing with the four areas we were assigned. Our hope is that this framework can help guide House action for the remainder of this Congress and beyond. In each of the four areas, we have offered recommendations for the near term that can reasonably be acted upon during this Congress. We have also listed other issues that could be considered or at least advanced. At a minimum, committees should hold hearings on these other issues as they are often...

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  • Chapter 17 - Organisational change and development. Chapter learning objectives: identify four forces for change in the business environment, describe the elements of lewin’s force field analysis model, outline six reasons why people resist organisational change, discuss six strategies to minimise resistance to change, outline the role of change agents, define organisation development, discuss three things consultants need to determine in a client relationship.

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  • The first part of this book is dedicated to the study of the often complex subsystems (such as suspensions) that constitute the chassis. Their primary function is to mediate the exchange of force with the ground, thus obtaining the desired vehicle speed and path. With reference to the system of coordinates that will be defined in part four, the forces exchanged with the ground can be classified as:

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  • An outstanding feature of the lower Mekong region is the dynamic energy of its natural systems and how intimately tied most of the population is to that seasonal force. Productivity in agriculture and fisheries, for example, depends on annual floodplain inundation and nutrient dispersal. The immense scale and impact of this natural cycle is well illustrated in the annual flooding of Tonle Sap Lake in Cambodia and the Mekong River Delta which it shares with Vietnam.

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  • This textbook has evolved from part of the first-year graduate curriculum in the Department of Materials Science and Engineering at the Massachusetts Institute of Technology (MIT) . This curriculum includes four required semester-long subjects- “Materials at Equilibrium,” “Mechanical Properties of Materials,” “Electrical, Optical, and Magnetic Properties of Materials,” and “Kinetic Processes in Materials.

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  • Fritz Institute is very proud to sponsor this special issue of Forced Migration Review in which the crucial role of humanitarian logistics is discussed in the voices of logisticians who have been part of practically every major relief effort over the past decade. We believe that the perspective of the logistician is a strategic and central component to the planning of effective relief efforts.

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  • Unemployment (or joblessness), as defined by the International Labour Organization, occurs when people are without jobs and they have actively sought work within the past four weeks.[1] The unemployment rate is a measure of the prevalence of unemployment and it is calculated as a percentage by dividing the number of unemployed individuals by all individuals currently in the labor force. During periods of recession, an economy usually experiences a relatively high unemployment rate.

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  • The most significant success occurred in and around Baltimore, where the Baltimore Regional Auto Theft Team, (RATT), a multi-jurisdictional task force, has seen a 50 percent drop in motor vehicle theft rates since 1995. The Michigan Auto Theft Prevention Board requires all grantees to provide matching funds for anti-theft efforts. Police departments and other grant fund recipients must provide 25 percent of total program costs.

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  • Richard Reese is an Associate Professor teaching Computer Science at Tarleton State University in Stephenville, Texas. Previously, he worked in the aerospace and telephony industries for over 16 years. He earned his Ph.D. in Computer Science from Texas A&M University. He also served four years in the Air Force primarily in the field of communication intelligence. Outside of classroom, he enjoys tending his vegetable garden, maintaining his aquariums, and running with his dog, Zoey. He also enjoys relaxing with an episode of Firefly and is ever hopeful for the return of the epic series. Dr.

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  • The Renaissance marks the separation of the mediaeval from the modern world. The wide difference between the two epochs of Teutonic history arises, we are apt somewhat glibly to say, from the fact that our ancestors worshipped and were ruled by brute force, whereas we follow the broad light of intellect. Perhaps both statements require modification; yet in a general way they do suggest the change which by a thousand different agencies has, in the course of the last four centuries, been forced upon the world. Mediaeval Europe was a land not of equals, but of lords and slaves.

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  • Privacy Enhanced Mail (PEM) was the first serious effort to secure Internet mail. The Internet Resources Task Force (IRTF) Privacy and Security Research Group (PSRG) did the initial design. The Internet Engineering Task Force (IETF) PEM Working Group continued development for three years, resulting in a four- part Proposed Internet Standard published in early 1993 [64] [56] [5] [55]. PEM is a broad standard suite, it provides encryption, authentication, message integrity and key management. PEM supports both symmetric and asymmetric (public- key) key management schemes.

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  • THIS SIXTEENTH-CENTURY odyssey of Cabeza de Vaca's is one of the great true epics of history. It is the semi-official report to the king of Spain by the ranking surviving officer of a royal expedition to conquer Florida which fantastically miscarried. Four out of a land-force of 300 men--by wits, stamina and luck--found their way back to civilization after eight harrowing years and roughly 6,000 miles over mostly unknown reaches of North America.

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  • Committees were established to oversee SD efforts in four areas: stock positioning, air distribution, surface distribution, and financial management within the Defense Transportation System (DTS). These committees are led by senior officers from the DLA Defense Distribution Center (DDC), Air Force Air Mobility Command (AMC), TRANSCOM’s Military Surface Deployment and Distribution Command (MSDDC), and TRANSCOM, respectively. An executive agent, two co-directors,

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  • Project AIR FORCE (PAF), a division of RAND, is the Air Force federally funded research and development center (FFRDC) for studies and analyses. It provides the Air Force with independent analyses of policy alternatives affecting the development, employment, combat readiness, and support of current and future aerospace forces. Research is performed in four programs: Aerospace Force Development; Manpower, Personnel, and Training; Resource Management; and Stra

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  •  is report is a collaborative e ort between Cisco, the global leader in Internet architecture, and Global Business Network (GBN), the world’s foremost scenario consultancy. It is o ered as a contribution to ongoing discussions and e orts to harness the huge potential of Internet and IP networks to drive economic and human development around the world.  is is of particular relevance to emerging-market countries where the relatively low level of Internet use today reveals a wide opportunity gap in terms of economic productivity and social inclusion.

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  • Towards the end of the year 1665, on a fine autumn evening, there was a considerable crowd assembled on the Pont-Neuf where it makes a turn down to the rue Dauphine. The object of this crowd and the centre of attraction was a closely shut, carriage. A police official was trying to force open the door, and two out of the four sergeants who were with him were holding the horses back and the other two stopping the driver, who paid no attention to their commands, but only endeavoured to urge his horses to a gallop...

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  • Shortly after the September 11, 2001, attacks, Air Force Chief of Staff General John Jumper asked RAND Project AIR FORCE to conduct a study entitled “Thinking Strategically About Combating Terrorism.” This year-long project was divided into four research tasks, each tackling different but complementary aspects of the counterterrorism problem: • Threat assessment: identifying the character and boundaries of the threat • The international dimension: assessing the impact of coalition and other international actors on U.S. options • Strategy: designing...

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  • The modelling of mechanical systems provides engineers and students with the methods to model and understand mechanical systems by using both mathematical and computer-based tools. Written by an eminent authority in the field, this is the second of four volumes which provide engineers with a comprehensive resource on this cornerstone mechanical engineering subject. Dealing with continuous systems, this book covers solid mechanics, beams, plates and shells.

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