Download or read book Population Inversion in Adiabatic Expansion of a Gas Mixture written by V. K. Konyukhov and published by . This book was released on 1966 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The paper shows that adiabatic expansion of certain mixtures of molecular gases gives rise to the condition of population inversion in terms of vibrational levels existing for a certain time. To achieve this the molecules of the mixture should have substantially different vibrational relaxation times and should be capable of exchanging the energy of the vibrational excitation. (Author).
Download or read book A Time dependent Quasi one dimensional Analysis of Population Inversions in an Expanding Gas written by John David Anderson (Jr.) and published by . This book was released on 1969 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: A time-dependent technique for the numerical solution of convergent-divergent, nonequilibrium nozzle flows was used to analyze the rapid, vibrational nonequlibrium, supersonic expansion of CO2-N2-H2O and CO2-N2-He mixtures, wherein the finite rate molecular energy transfer processes can result in a population inversion between the (001) and (100) vibrational energy levels of CO2. Results for such population inversions are presented. Among these, a comparison was made between the present results and the recent results of Basov et al; this comparison indicates that Basov's calculations overestimate the population inversion in an expanding mixture of CO2 and N2. In addition, results are presented from a series of numerical experiments conducted to assess the validity of several simplified methods for computing population inversions. (Author).
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1984 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gas Flow and Chemical Lasers written by Michele Onorato and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains eight invited papers and seventy-three contributed papers presented at the Fourth International Symposium on Gas Flow and Chemical Lasers. which was held in Stresa. Italy. from September 13 to 17. 1984. The purpose of the Symposium was to record and discuss current research developments and applications related to high power lasers. Papers were solicited from the entire spectrum of activities, includ ing basic physics, aerothermodynamics, new laser media, laser design, diagnostic techniques, laser propagation. interaction phenom ena, applications. The Symposium was an opportunity for scientists and engineers representing all these disciplines to come together to report their recent work, to exchange ideas and to provide an up-to-date account of international progress in these fields. The contributed papers were reviewed by the members of the Scientific Advisory CoEmittee. who also took responsibility for formulating the program of invited lectures. As editor I wish to express my appreciation and my gratitude to people and organizations that made this Symposium a success: the Members of the Scientific Advisory Committee, the Members of the Local Organizing Committee, the Sponsors and the Symposium Secretary. A grateful acknowledgement is expressed to Dr. M. Sandra Oggiano for assistance in the organization of the Symposium and publication of these proceedings.
Download or read book A Time dependent Quasi one dimensional Analysis of Population Inversions in an Expanding Gas written by and published by . This book was released on 1969 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: A time-dependent technique for the numerical solution of convergent-divergent, nonequilibrium nozzle flows was used to analyze the rapid, vibrational nonequlibrium, supersonic expansion of CO2-N2-H2O and CO2-N2-He mixtures, wherein the finite rate molecular energy transfer processes can result in a population inversion between the (001) and (100) vibrational energy levels of CO2. Results for such population inversions are presented. Among these, a comparison was made between the present results and the recent results of Basov et al; this comparison indicates that Basov's calculations overestimate the population inversion in an expanding mixture of CO2 and N2. In addition, results are presented from a series of numerical experiments conducted to assess the validity of several simplified methods for computing population inversions. (Author).
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molecular Spectroscopy written by K.N. Rao and published by Elsevier. This book was released on 2012-12-02 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular Spectroscopy: Modern Research explores the advances in several phases of research in molecular spectroscopy. This eight-chapter book commemorates the 25th anniversary of the annual Columbus Symposium on Molecular Structure and Spectroscopy, held in September, 1970. This book highlights the spectroscopic studies of molecular species in the gas phase and in matrices. Representative articles are also included that cover the applications of molecular studies in a wide variety of areas such as biophysics, astrophysical problems, and energy transfer processes. Other chapters describe the progress achieved in the technology of high resolution spectroscopy and the techniques and terminology of Lamb-dip spectroscopy. A comprehensive bibliography is included for most of the subjects discussed and this text concludes with tables of standard data listing secondary wavelength standards, fundamental constants, atomic masses, and conversion factors of interest to spectroscopists. Spectroscopists, chemists, and researchers will find this work invaluable.
Download or read book Sensors and Measurement Techniques for Chemical Gas Lasers written by Mainuddin Gaurav Singhal and published by Lulu.com. This book was released on 2014-09-27 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sensing and Measurement is the key technology area in the development of these lasers. Advanced sensing and measurement technologies are required to acquire, analyze and transform data into information that is useful to enhance the performance and capabilities of these lasers systems.The goal of this book is therefore to enable scientists and technologists working in rather complex area of chemical lasers to achieve the best technical performances. Till now such topics havebeen covered scantly in open literature and that too in the research papers only.
Download or read book U S Government Research Development Reports written by and published by . This book was released on 1966-11 with total page 1014 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1966 with total page 1466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Translations written by and published by . This book was released on 1966 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements written by and published by . This book was released on 1966 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Principles of Laser Materials Processing written by Elijah Kannatey-Asibu, Jr. and published by John Wiley & Sons. This book was released on 2009-04-22 with total page 849 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coverage of the most recent advancements and applications in laser materials processing This book provides state-of-the-art coverage of the field of laser materials processing, from fundamentals to applications to the latest research topics. The content is divided into three succinct parts: Principles of laser engineering-an introduction to the basic concepts and characteristics of lasers, design of their components, and beam delivery Engineering background&-a review of engineering concepts needed to analyze different processes: thermal analysis and fluid flow; solidification of molten metal; and residual stresses that evolve during processes Laser materials processing-a rigorous and detailed treatment of laser materials processing and its principle applications, including laser cutting and drilling, welding, surface modification, laser forming, and rapid prototyping Each chapter includes an outline, summary, and example sets to help readers reinforce their understanding of the material. This book is designed to prepare graduate students who will be entering industry; researchers interested in initiating a research program; and practicing engineers who need to stay abreast of the latest developments in this rapidly evolving field.
Download or read book U S Government Research and Development Reports written by and published by . This book was released on 1966-10 with total page 1452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics 2023 24 KVS PGT written by YCT Expert Team and published by YOUTH COMPETITION TIMES. This book was released on with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: 2023-24 KVS/PGT Physics Solved Papers & Practice Book
Download or read book Gas flow and Chemical Lasers written by and published by . This book was released on 1985 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:
