Author : Lysbeth Lieber
Publisher :
Page : 192 pages
File Size : 42,5 MB
Release : 2000
Category :
ISBN :
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
Page : 178 pages
File Size : 50,37 MB
Release : 2018-06-13
Category :
ISBN : 9781721094264
This Final Report has been prepared by AlliedSignal Engines and Systems, Phoenix, Arizona, documenting work performed during the period May 1997 through June 1999, under the Small Engines Technology Program, Contract No. NAS3-27483, Task Order 13, ANOPP Noise Prediction for Small Engines. The report specifically covers the work performed under Subtasks 4, 5 and 6. Subtask 4 describes the application of a semi-empirical procedure for jet noise prediction, subtask 5 describes the development of a procedure to predict the effects of wing shielding, and subtask 6 describes the results of system studies of the benefits of the new noise technology on business and regional aircraft. Lieber, Lysbeth and Golub, Robert (Technical Monitor) Langley Research Center NAS3-27483; RTOP 538-03-13-01
Author : Oleksandr Zaporozhets
Publisher : CRC Press
Page : 435 pages
File Size : 17,46 MB
Release : 2011-05-13
Category : Technology & Engineering
ISBN : 0415240662
Aircraft noise has adverse impacts on passengers, airport staff and people living near airports, it thus limits the capacity of regional and international airports throughout the world. Reducing perceived noise of aircraft involves reduction of noise at source, along the propagation path and at the receiver. Effective noise control demands highly skilled and knowledgeable engineers. This book is for them. It shows you how accurate and reliable information about aircraft noise levels can be gained by calculations using appropriate generation and propagation models, or by measurements with effective monitoring systems. It also explains how to allow for atmospheric conditions, natural and artificial topography as well as detailing necessary measurement techniques.
Author :
Publisher :
Page : 162 pages
File Size : 19,13 MB
Release : 2001
Category :
ISBN :
Author : Courtney G. Brooks
Publisher : Courier Corporation
Page : 578 pages
File Size : 13,19 MB
Release : 2012-05-14
Category : Science
ISBN : 0486140938
This illustrated history by a trio of experts is the definitive reference on the Apollo spacecraft and lunar modules. It traces the vehicles' design, development, and operation in space. More than 100 photographs and illustrations.
Author : Jan Roskam
Publisher : DARcorporation
Page : 372 pages
File Size : 37,37 MB
Release : 1985
Category : Technology & Engineering
ISBN : 9781884885549
Author : Cristina Capineri
Publisher : Routledge
Page : 364 pages
File Size : 31,20 MB
Release : 2018-08-20
Category : Science
ISBN : 0429819889
First published in 1997, this book contains contributions on policy aspects of networks from a multidisciplinary perspective, including economics, geography and transport science. Both material and immaterial networks are examined. Policy aspects refer mainly to interventions of the public sector in networks. In addition, the book examines the policies of other actors in shaping networks and the territorial effects of networks as a whole.
Author : Colin Burgess
Publisher : Springer Science & Business Media
Page : 436 pages
File Size : 46,90 MB
Release : 2007-07-05
Category : Science
ISBN : 0387496785
This book is as a detailed, but highly readable and balanced account of the history of animal space flights carried out by all nations, but principally the United States and the Soviet Union. It explores the ways in which animal high-altitude and space flight research impacted on space flight biomedicine and technology, and how the results - both successful and disappointing - allowed human beings to then undertake that same hazardous journey with far greater understanding and confidence. This complete and authoritative book will undoubtedly become the ultimate authority on animal space flights.
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
Page : 46 pages
File Size : 20,33 MB
Release : 2018-08-20
Category :
ISBN : 9781720511922
This report describes the analytical modeling and evaluation of an unconventional commercial transport aircraft concept designed to address aircraft noise and emission issues. A blended-wing-body configuration with advanced technology hydrogen fuel cell electric propulsion is considered. Predicted noise and emission characteristics are compared to a current technology conventional configuration designed for the same mission. The significant technology issues which have to be addressed to make this concept a viable alternative to current aircraft designs are discussed. This concept is one of the "Quiet Green Transport" aircraft concepts studied as part of NASA's Revolutionary Aerospace Systems Concepts (RASC) Program. The RASC Program was initiated to develop revolutionary concepts that address strategic objectives of the NASA Enterprises, such as reducing aircraft noise and emissions, and to identify advanced technology requirements for the concepts.Guynn, Mark D. and Freh, Joshua E. and Olson, Erik D.Glenn Research Center; Langley Research CenterMATHEMATICAL MODELS; EVALUATION; AIRCRAFT DESIGN; AIRCRAFT NOISE; NOISE REDUCTION; AEROSPACE SYSTEMS; BLENDED-WING-BODY CONFIGURATIONS; COMMERCIAL AIRCRAFT; ELECTRIC PROPULSION; FUEL CELLS; NOISE MEASUREMENT
Author : Louise H Crockett
Publisher :
Page : 642 pages
File Size : 23,50 MB
Release : 2019-04-11
Category :
ISBN : 9780992978754
This book introduces the Zynq MPSoC (Multi-Processor System-on-Chip), an embedded device from Xilinx. The Zynq MPSoC combines a sophisticated processing system that includes ARM Cortex-A53 applications and ARM Cortex-R5 real-time processors, with FPGA programmable logic. As well as guiding the reader through the architecture of the device, design tools and methods are also covered in detail: both the conventional hardware/software co-design approach, and the newer software-defined methodology using Xilinx's SDx development environment. Featured aspects of Zynq MPSoC design include hardware and software development, multiprocessing, safety, security and platform management, and system booting. There are also special features on PYNQ, the Python-based framework for Zynq devices, and machine learning applications. This book should serve as a useful guide for those working with Zynq MPSoC, and equally as a reference for technical managers wishing to gain familiarity with the device and its associated design methodologies.
