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Download or read book EFFECTS OF GRAVITY ON COCURRENT TWO-PHASE GAS-LIQUID FLOWS THROUGH PACKED COLUMNS... NASA/TM-2001-210705... JUN. 20, 2001 written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Brian J. Motil
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (317 download)
Download or read book Effects of Gravity on Cocurrent Two-Phase Gas-Liquid Flows Through Packed Columns written by Brian J. Motil and published by . This book was released on 2001 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book REDUCED GRAVITY GAS AND LIQUID FLOWS: SIMPLE DATA FOR COMPLEX PROBLEMS... NASA/TM-2001-210681... JUN. 20, 2001 written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (317 download)
Download or read book Two-Phase Flow in Packed Columns and Generation of Bubbly Suspensions for Chemical Processing in Space written by and published by . This book was released on 2000 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : B.E.T. Hutton
Publisher :
ISBN 13 :
Total Pages : 190 pages
Book Rating : 4.:/5 (989 download)
Download or read book Gas Liquid Two Phase Flow in Packed Columns and Wetted Wal Columns written by B.E.T. Hutton and published by . This book was released on 1976 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : B. E. T. Hutton
Publisher :
ISBN 13 :
Total Pages : 380 pages
Book Rating : 4.:/5 (374 download)
Download or read book Gas Liquid Two Phase Flow in Packed Columns and Wetted Wall Columns written by B. E. T. Hutton and published by . This book was released on 1976 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Howard George McIlvried
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (258 download)
Download or read book Mass transfer in cocurrent gas-liquid flow through a packed column written by Howard George McIlvried and published by . This book was released on 1957 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Adm Nasa
Publisher : Independently Published
ISBN 13 : 9781792623592
Total Pages : 26 pages
Book Rating : 4.6/5 (235 download)
Download or read book Gas-Phase Flowrate Effect on Disintegrating Cryogenic Liquid-Jets written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-12-29 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two phase liquid and gaseous nitrogen flow in a pneumatic two fluid atomizer was investigated. Characteristic dropsize for cryogenic sprays were measured with a scattered light scanning instrument developed at NASA-Lewis. Tests were conducted primarily in the aerodynamic stripping regime of liquid jet atomization. At a sampling distance of bar-x=1.3 cm, the Sauter mean, D(sub 32), and volume median, D(sub v.5), drop diameters were measured and correlated with nitrogen gas flowrate, W(sub n), to give the following expressions: D sub 32 to the -1=210W(sub n) to the -1.33 and D(sub v.5) to the -1=150 W(sub n to the -1.33, where reciprocal diameters and gas flowrate are in cm (-1) and g/sec, respectively. The exponent 1.33 for nitrogrn gas flowrate, W(sub n), is the same as that predicted by atomization theory for liquid-jet breakup in high velocity gasflow. When the spray was sampled at axial distances of bar-x=2.5 and 4.5 cm downstream of the atomizer, the exponent decreased to 1.2 and 0.9, respectively. This was attributed to the loss of small droplets due to their rapid vaporization. Ingebo, Robert D. Glenn Research Center NASA-TM-102357, E-5071, NAS 1.15:102357 RTOP 505-62-21...
Author : Basil N. Antar
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book Gas-liquid, Two Phase Flow Dynamics in Low Gravity written by Basil N. Antar and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book THE EFFECT OF DOPPLER FREQUENCY SHIFT, FREQUENCY OFFSET OF THE LOCAL OSCILLATORS, AND PHASE NOISE ON THE P... NASA/TM-2001-210595... JUN. 20 written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gravity and Gas Density Effects on Annular Flow Average Film Thickness and Frictional Pressure Drop written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Annular flow is an important flow regime in many industrial applications. The need for a better understanding of this flow regime is driven by the desire to improve the design of many terrestrial and space-based systems. Annular two-phase flow is frequently present in the drilling, production and transportation of oil and natural gas, boilers and condensers, and in heating and refrigeration systems. The flow regime is also important for the refueling of space vehicles, and heating and refrigeration systems for space use. Past studies on annular flow have dealt with varying the gas or liquid Reynolds numbers and studying the effect of such changes on the flow regimes and pressure drops. The effect of two other relevant dimensionless groups, namely the gas-to-liquid density ratio and the gas-to-liquid viscosity ratio, on the film characteristics are noticeably absent. As well, with the increased interest in the space environment, studies on the effect of the gravitational acceleration on two-phase flow would be beneficial. The effect of the gas density and the gravitational acceleration on the annular flow average film thickness and frictional pressure drop are examined. The film thickness was measured using two-wire conductance probes. Experimental data were collected in microgravity and hypergravity aboard the Novespace Zero-G Airbus microgravity simulator and normal gravity data were collected at the University of Saskatchewan. Data were collected for a range of annular flow set points by changing the liquid and gas mass flow rates. The liquid-to-gas density ratio was examined by collecting annular flow data using helium-water and air-water. The gravitational effect on the film thickness characteristics was examined by collecting the data during the microgravity and pull-up (hypergravity) portions of each parabolic flight. A direct comparison is possible between the normal gravity data and the microgravity data, due to the matching of the liquid and gas mass flow r.
Author : Keith Breckenridge
Publisher : Cambridge University Press
ISBN 13 : 1107077842
Total Pages : 265 pages
Book Rating : 4.1/5 (7 download)
Download or read book Biometric State written by Keith Breckenridge and published by Cambridge University Press. This book was released on 2014-10-02 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: A groundbreaking study of South Africa's role as a site for global experiments in biometric identification throughout the twentieth century.
Author : James Denbow
Publisher : Cambridge University Press
ISBN 13 : 1107040701
Total Pages : 245 pages
Book Rating : 4.1/5 (7 download)
Download or read book The Archaeology and Ethnography of Central Africa written by James Denbow and published by Cambridge University Press. This book was released on 2014 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the first detailed description of the prehistory of the Loango coast of west-central Africa over the course of more than 3000 years.
Author : Stephanie Allais
Publisher : Springer
ISBN 13 : 9462095787
Total Pages : 297 pages
Book Rating : 4.4/5 (62 download)
Download or read book Selling Out Education written by Stephanie Allais and published by Springer. This book was released on 2014-08-07 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: Selling Out Education argues that basing education policy on qualifications and learning outcomes—dramatized by the phenomenal expansion of qualifications frameworks—is misguided. Qualifications frameworks are intended to make education more responsive to the needs of economies and societies by improving how qualifications and credentials are used in labour markets. But using learning outcomes as the starting point of education programmes neglects the core purpose of education: giving people access to bodies of knowledge they would not otherwise have. Furthermore, instead of creating demand for skilled workers through industrial and economic policy, qualifications frameworks are premised on the flawed idea that a supply of skilled workers leads to industrial and economic development. And skilled workers are to be supplied not by encouraging governments to focus attention on creating, improving, and supporting education institutions, but by suggesting that governments take a quality-assurance role. As a result, in poor countries where provision is weak to start with, qualifications have been created and institutions established to monitor providers without increasing or improving education provision. The weaknesses of many current policy approaches make clear, Allais argues, that education is inherently a collective good, and that the acquisition of bodies of knowledge provide the basis for its integrity and intelligibility.
Author : C. Kihato
Publisher : Springer
ISBN 13 : 1137299975
Total Pages : 284 pages
Book Rating : 4.1/5 (372 download)
Download or read book Migrant Women of Johannesburg written by C. Kihato and published by Springer. This book was released on 2013-11-07 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Through rich stories of African migrant women in Johannesburg, this book explores the experience of living between geographies. Author Caroline Kihato draws on fieldwork and analysis to examine the everyday lives of those inhabiting a fluid location between multiple worlds, suspended between their original home and an imagined future elsewhere.
Author : Timothy Gibbs
Publisher : Boydell & Brewer Ltd
ISBN 13 : 184701089X
Total Pages : 226 pages
Book Rating : 4.8/5 (47 download)
Download or read book Mandela's Kinsmen written by Timothy Gibbs and published by Boydell & Brewer Ltd. This book was released on 2014 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mandela's Kinsmen is the first study of the fraught relationships between the ANC leadership and their relatives who ruled apartheid's foremost "tribal" Bantustan, the Transkei. In the early 20th century, the chieftaincies had often been well-springs of political leadership. In the Transkei, political leaders, such as Mandela, used regionally rooted clan, schooling and professional connections to vault to leadership; they crafted expansive nationalisms woven from these "kin" identities. But from 1963 the apartheid government turned South Africa's chieftaincies into self-governing, tribal Bantustans in order to shatter African nationalism. While historians often suggest that apartheid changed everything - African elites being eclipsed by an era of mass township and trade union protest, and the chieftaincies co-opted by the apartheid government - there is another side to this story. Drawing on newly discovered accounts and archives, Gibbs reassesses the Bantustans and the changing politics of chieftaincy, showing how local dissent within Transkei connected to wider political movements and ideologies. Emphasizing the importance of elite politics, he describes how the ANC-in-exile attempted to re-enter South Africa through the Bantustans drawing on kin networks. This failed in KwaZulu, but Transkei provided vital support after a coup in 1987, and the alliances forged were important during the apartheid endgame. Finally, in counterpoint to Africanist debates that focus on how South African insurgencies narrowed nationalist thought and practice, he maintains ANC leaders calmed South Africa's conflicts of the early 1990s by espousing an inclusive nationalism that incorporated local identities, and that "Mandela's kinsmen" still play a key role in state politics today. Timothy Gibbs is a Lecturer in African History, University College London. Southern Africa (South Africa, Namibia, Lesotho, Swaziland & Botswana): Jacana
Author : Noor Nieftagodien
Publisher : Ohio University Press
ISBN 13 : 0821445235
Total Pages : 95 pages
Book Rating : 4.8/5 (214 download)
Download or read book The Soweto Uprising written by Noor Nieftagodien and published by Ohio University Press. This book was released on 2014-12-08 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Soweto uprising was a true turning point in South Africa’s history. Even to contemporaries, it seemed to mark the beginning of the end of apartheid. This compelling book examines both the underlying causes and the immediate factors that led to this watershed event. It looks at the crucial roles of Black Consciousness ideology and nascent school-based organizations in shaping the character and form of the revolt. What began as a peaceful and coordinated demonstration rapidly turned into a violent protest when police opened fire on students. This short history explains the uprising and its aftermath from the perspective of its main participants, the youth, by drawing on a rich body of oral histories.
