Spouted and spout-fluid beds: fundamentals and applications
Since the pioneering text by Mathur and Epstein over 35 years ago, much of the work on this subject has been extended or superseded, producing an enormous body of scattered literature. This edited volume unifies the subject, pulling material together and underpinning it with fundamental theory to pr...
Gespeichert in:
Weitere Verfasser: | , |
---|---|
Format: | Elektronisch E-Book |
Sprache: | English |
Veröffentlicht: |
Cambridge
Cambridge University Press
2011
|
Schlagworte: | |
Online-Zugang: | BSB01 FHN01 Volltext |
Zusammenfassung: | Since the pioneering text by Mathur and Epstein over 35 years ago, much of the work on this subject has been extended or superseded, producing an enormous body of scattered literature. This edited volume unifies the subject, pulling material together and underpinning it with fundamental theory to produce the only complete, up-to-date reference on all major areas of spouted bed research and practice. With contributions from internationally renowned research groups, this book guides the reader through new developments, insights and models. The hydrodynamic and reactor models of spouted and spout-fluid beds are examined, as well as such topics as particle segregation, heat and mass transfer, mixing and scale-up. Later chapters focus on drying, particle-coating and energy-related applications based on spouted and spout-fluid beds. This is a valuable resource for chemical and mechanical engineers in research and industry |
Beschreibung: | Title from publisher's bibliographic system (viewed on 05 Oct 2015) |
Beschreibung: | 1 online resource (xxi, 340 pages) |
ISBN: | 9780511777936 |
DOI: | 10.1017/CBO9780511777936 |
Internformat
MARC
LEADER | 00000nmm a2200000zc 4500 | ||
---|---|---|---|
001 | BV043945003 | ||
003 | DE-604 | ||
005 | 00000000000000.0 | ||
007 | cr|uuu---uuuuu | ||
008 | 161206s2011 |||| o||u| ||||||eng d | ||
020 | |a 9780511777936 |c Online |9 978-0-511-77793-6 | ||
024 | 7 | |a 10.1017/CBO9780511777936 |2 doi | |
035 | |a (ZDB-20-CBO)CR9780511777936 | ||
035 | |a (OCoLC)992869165 | ||
035 | |a (DE-599)BVBBV043945003 | ||
040 | |a DE-604 |b ger |e rda | ||
041 | 0 | |a eng | |
049 | |a DE-12 |a DE-92 | ||
082 | 0 | |a 660/.28426 |2 22 | |
245 | 1 | 0 | |a Spouted and spout-fluid beds |b fundamentals and applications |c edited by Norman Epstein, John R. Grace |
246 | 1 | 3 | |a Spouted & Spout-Fluid Beds |
264 | 1 | |a Cambridge |b Cambridge University Press |c 2011 | |
300 | |a 1 online resource (xxi, 340 pages) | ||
336 | |b txt |2 rdacontent | ||
337 | |b c |2 rdamedia | ||
338 | |b cr |2 rdacarrier | ||
500 | |a Title from publisher's bibliographic system (viewed on 05 Oct 2015) | ||
505 | 8 | |a Machine generated contents note: 1. Introduction N. Epstein and J. Grace; 2. Initiation of spouting X. Bi; 3. Empirical and analytical hydrodynamics N. Epstein; 4. Computational fluid dynamic modelling of spouted beds X. Bao, W. Du and J. Xu; 5. Conical spouted beds M. Olazar, J. Bilbao and M.J. San Jose; 6. Hydrodynamics of spout-fluid beds W. Zhong, B. Jin, M. Zhang and R. Xiao; 7. Spouted and spout-fluid beds with draft tubes M.H. Morgan, H. Littman, Z. Grbavcic and J.D. Paccione; 8. Particle segregation and mixing G. Rovero and N. Piccinini; 9. Heat and mass transfer A. Kmiec and S. Englart; 10. Powder-particle spouted beds T. Ishikura and H. Nagashima; 11. Drying of particulate solids M.L. Passos, E.F. Costa Jr and A.S. Mujumdar; 12. Drying of solutions, slurries and pastes J.T. Freire, M.C. Ferreira and F.B. Freire; 13. Granulation and particle coating S.C.S. Rocha and O.P. Taranto; 14. The Wurster process J. Seville, S. Palmer and A. Ingram; 15. Gasification and combustion A.P. Watkinson and A. Lisboa; 16. Spouted bed electrolytic reactors J.W. Evans and V. Jiricny; 17. Scale-up, slot-rectangular and multiple spouting J. Grace and C.J. Lim; 18. Mechanical spouting T. Szentmarjay, E. Pillai and Judit Toth; 19. Catalytic reactors and their modelling G. Rovero and N. Piccinini; 20. Liquid and liquid-gas spouting Z.B. Grbavcic, H. Littman and M.H. Morgan III; 21. Concluding chapter N. Epstein and J. Grace | |
520 | |a Since the pioneering text by Mathur and Epstein over 35 years ago, much of the work on this subject has been extended or superseded, producing an enormous body of scattered literature. This edited volume unifies the subject, pulling material together and underpinning it with fundamental theory to produce the only complete, up-to-date reference on all major areas of spouted bed research and practice. With contributions from internationally renowned research groups, this book guides the reader through new developments, insights and models. The hydrodynamic and reactor models of spouted and spout-fluid beds are examined, as well as such topics as particle segregation, heat and mass transfer, mixing and scale-up. Later chapters focus on drying, particle-coating and energy-related applications based on spouted and spout-fluid beds. This is a valuable resource for chemical and mechanical engineers in research and industry | ||
650 | 4 | |a Spouted bed processes | |
650 | 0 | 7 | |a Wirbelschicht |0 (DE-588)4066372-3 |2 gnd |9 rswk-swf |
689 | 0 | 0 | |a Wirbelschicht |0 (DE-588)4066372-3 |D s |
689 | 0 | |8 1\p |5 DE-604 | |
700 | 1 | |a Epstein, Norman |4 edt | |
700 | 1 | |a Grace, John R. |4 edt | |
776 | 0 | 8 | |i Erscheint auch als |n Druckausgabe |z 978-0-521-51797-3 |
856 | 4 | 0 | |u https://doi.org/10.1017/CBO9780511777936 |x Verlag |z URL des Erstveröffentlichers |3 Volltext |
912 | |a ZDB-20-CBO | ||
999 | |a oai:aleph.bib-bvb.de:BVB01-029353973 | ||
883 | 1 | |8 1\p |a cgwrk |d 20201028 |q DE-101 |u https://d-nb.info/provenance/plan#cgwrk | |
966 | e | |u https://doi.org/10.1017/CBO9780511777936 |l BSB01 |p ZDB-20-CBO |q BSB_PDA_CBO |x Verlag |3 Volltext | |
966 | e | |u https://doi.org/10.1017/CBO9780511777936 |l FHN01 |p ZDB-20-CBO |q FHN_PDA_CBO |x Verlag |3 Volltext |
Datensatz im Suchindex
_version_ | 1804176890671398912 |
---|---|
any_adam_object | |
author2 | Epstein, Norman Grace, John R. |
author2_role | edt edt |
author2_variant | n e ne j r g jr jrg |
author_facet | Epstein, Norman Grace, John R. |
building | Verbundindex |
bvnumber | BV043945003 |
collection | ZDB-20-CBO |
contents | Machine generated contents note: 1. Introduction N. Epstein and J. Grace; 2. Initiation of spouting X. Bi; 3. Empirical and analytical hydrodynamics N. Epstein; 4. Computational fluid dynamic modelling of spouted beds X. Bao, W. Du and J. Xu; 5. Conical spouted beds M. Olazar, J. Bilbao and M.J. San Jose; 6. Hydrodynamics of spout-fluid beds W. Zhong, B. Jin, M. Zhang and R. Xiao; 7. Spouted and spout-fluid beds with draft tubes M.H. Morgan, H. Littman, Z. Grbavcic and J.D. Paccione; 8. Particle segregation and mixing G. Rovero and N. Piccinini; 9. Heat and mass transfer A. Kmiec and S. Englart; 10. Powder-particle spouted beds T. Ishikura and H. Nagashima; 11. Drying of particulate solids M.L. Passos, E.F. Costa Jr and A.S. Mujumdar; 12. Drying of solutions, slurries and pastes J.T. Freire, M.C. Ferreira and F.B. Freire; 13. Granulation and particle coating S.C.S. Rocha and O.P. Taranto; 14. The Wurster process J. Seville, S. Palmer and A. Ingram; 15. Gasification and combustion A.P. Watkinson and A. Lisboa; 16. Spouted bed electrolytic reactors J.W. Evans and V. Jiricny; 17. Scale-up, slot-rectangular and multiple spouting J. Grace and C.J. Lim; 18. Mechanical spouting T. Szentmarjay, E. Pillai and Judit Toth; 19. Catalytic reactors and their modelling G. Rovero and N. Piccinini; 20. Liquid and liquid-gas spouting Z.B. Grbavcic, H. Littman and M.H. Morgan III; 21. Concluding chapter N. Epstein and J. Grace |
ctrlnum | (ZDB-20-CBO)CR9780511777936 (OCoLC)992869165 (DE-599)BVBBV043945003 |
dewey-full | 660/.28426 |
dewey-hundreds | 600 - Technology (Applied sciences) |
dewey-ones | 660 - Chemical engineering |
dewey-raw | 660/.28426 |
dewey-search | 660/.28426 |
dewey-sort | 3660 528426 |
dewey-tens | 660 - Chemical engineering |
discipline | Chemie / Pharmazie |
doi_str_mv | 10.1017/CBO9780511777936 |
format | Electronic eBook |
fullrecord | <?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>04159nmm a2200469zc 4500</leader><controlfield tag="001">BV043945003</controlfield><controlfield tag="003">DE-604</controlfield><controlfield tag="005">00000000000000.0</controlfield><controlfield tag="007">cr|uuu---uuuuu</controlfield><controlfield tag="008">161206s2011 |||| o||u| ||||||eng d</controlfield><datafield tag="020" ind1=" " ind2=" "><subfield code="a">9780511777936</subfield><subfield code="c">Online</subfield><subfield code="9">978-0-511-77793-6</subfield></datafield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1017/CBO9780511777936</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(ZDB-20-CBO)CR9780511777936</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(OCoLC)992869165</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)BVBBV043945003</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-604</subfield><subfield code="b">ger</subfield><subfield code="e">rda</subfield></datafield><datafield tag="041" ind1="0" ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="049" ind1=" " ind2=" "><subfield code="a">DE-12</subfield><subfield code="a">DE-92</subfield></datafield><datafield tag="082" ind1="0" ind2=" "><subfield code="a">660/.28426</subfield><subfield code="2">22</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Spouted and spout-fluid beds</subfield><subfield code="b">fundamentals and applications</subfield><subfield code="c">edited by Norman Epstein, John R. Grace</subfield></datafield><datafield tag="246" ind1="1" ind2="3"><subfield code="a">Spouted & Spout-Fluid Beds</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="a">Cambridge</subfield><subfield code="b">Cambridge University Press</subfield><subfield code="c">2011</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">1 online resource (xxi, 340 pages)</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">Title from publisher's bibliographic system (viewed on 05 Oct 2015)</subfield></datafield><datafield tag="505" ind1="8" ind2=" "><subfield code="a">Machine generated contents note: 1. Introduction N. Epstein and J. Grace; 2. Initiation of spouting X. Bi; 3. Empirical and analytical hydrodynamics N. Epstein; 4. Computational fluid dynamic modelling of spouted beds X. Bao, W. Du and J. Xu; 5. Conical spouted beds M. Olazar, J. Bilbao and M.J. San Jose; 6. Hydrodynamics of spout-fluid beds W. Zhong, B. Jin, M. Zhang and R. Xiao; 7. Spouted and spout-fluid beds with draft tubes M.H. Morgan, H. Littman, Z. Grbavcic and J.D. Paccione; 8. Particle segregation and mixing G. Rovero and N. Piccinini; 9. Heat and mass transfer A. Kmiec and S. Englart; 10. Powder-particle spouted beds T. Ishikura and H. Nagashima; 11. Drying of particulate solids M.L. Passos, E.F. Costa Jr and A.S. Mujumdar; 12. Drying of solutions, slurries and pastes J.T. Freire, M.C. Ferreira and F.B. Freire; 13. Granulation and particle coating S.C.S. Rocha and O.P. Taranto; 14. The Wurster process J. Seville, S. Palmer and A. Ingram; 15. Gasification and combustion A.P. Watkinson and A. Lisboa; 16. Spouted bed electrolytic reactors J.W. Evans and V. Jiricny; 17. Scale-up, slot-rectangular and multiple spouting J. Grace and C.J. Lim; 18. Mechanical spouting T. Szentmarjay, E. Pillai and Judit Toth; 19. Catalytic reactors and their modelling G. Rovero and N. Piccinini; 20. Liquid and liquid-gas spouting Z.B. Grbavcic, H. Littman and M.H. Morgan III; 21. Concluding chapter N. Epstein and J. Grace</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Since the pioneering text by Mathur and Epstein over 35 years ago, much of the work on this subject has been extended or superseded, producing an enormous body of scattered literature. This edited volume unifies the subject, pulling material together and underpinning it with fundamental theory to produce the only complete, up-to-date reference on all major areas of spouted bed research and practice. With contributions from internationally renowned research groups, this book guides the reader through new developments, insights and models. The hydrodynamic and reactor models of spouted and spout-fluid beds are examined, as well as such topics as particle segregation, heat and mass transfer, mixing and scale-up. Later chapters focus on drying, particle-coating and energy-related applications based on spouted and spout-fluid beds. This is a valuable resource for chemical and mechanical engineers in research and industry</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Spouted bed processes</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Wirbelschicht</subfield><subfield code="0">(DE-588)4066372-3</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="689" ind1="0" ind2="0"><subfield code="a">Wirbelschicht</subfield><subfield code="0">(DE-588)4066372-3</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="0" ind2=" "><subfield code="8">1\p</subfield><subfield code="5">DE-604</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Epstein, Norman</subfield><subfield code="4">edt</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Grace, John R.</subfield><subfield code="4">edt</subfield></datafield><datafield tag="776" ind1="0" ind2="8"><subfield code="i">Erscheint auch als</subfield><subfield code="n">Druckausgabe</subfield><subfield code="z">978-0-521-51797-3</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doi.org/10.1017/CBO9780511777936</subfield><subfield code="x">Verlag</subfield><subfield code="z">URL des Erstveröffentlichers</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-20-CBO</subfield></datafield><datafield tag="999" ind1=" " ind2=" "><subfield code="a">oai:aleph.bib-bvb.de:BVB01-029353973</subfield></datafield><datafield tag="883" ind1="1" ind2=" "><subfield code="8">1\p</subfield><subfield code="a">cgwrk</subfield><subfield code="d">20201028</subfield><subfield code="q">DE-101</subfield><subfield code="u">https://d-nb.info/provenance/plan#cgwrk</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">https://doi.org/10.1017/CBO9780511777936</subfield><subfield code="l">BSB01</subfield><subfield code="p">ZDB-20-CBO</subfield><subfield code="q">BSB_PDA_CBO</subfield><subfield code="x">Verlag</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">https://doi.org/10.1017/CBO9780511777936</subfield><subfield code="l">FHN01</subfield><subfield code="p">ZDB-20-CBO</subfield><subfield code="q">FHN_PDA_CBO</subfield><subfield code="x">Verlag</subfield><subfield code="3">Volltext</subfield></datafield></record></collection> |
id | DE-604.BV043945003 |
illustrated | Not Illustrated |
indexdate | 2024-07-10T07:39:22Z |
institution | BVB |
isbn | 9780511777936 |
language | English |
oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-029353973 |
oclc_num | 992869165 |
open_access_boolean | |
owner | DE-12 DE-92 |
owner_facet | DE-12 DE-92 |
physical | 1 online resource (xxi, 340 pages) |
psigel | ZDB-20-CBO ZDB-20-CBO BSB_PDA_CBO ZDB-20-CBO FHN_PDA_CBO |
publishDate | 2011 |
publishDateSearch | 2011 |
publishDateSort | 2011 |
publisher | Cambridge University Press |
record_format | marc |
spelling | Spouted and spout-fluid beds fundamentals and applications edited by Norman Epstein, John R. Grace Spouted & Spout-Fluid Beds Cambridge Cambridge University Press 2011 1 online resource (xxi, 340 pages) txt rdacontent c rdamedia cr rdacarrier Title from publisher's bibliographic system (viewed on 05 Oct 2015) Machine generated contents note: 1. Introduction N. Epstein and J. Grace; 2. Initiation of spouting X. Bi; 3. Empirical and analytical hydrodynamics N. Epstein; 4. Computational fluid dynamic modelling of spouted beds X. Bao, W. Du and J. Xu; 5. Conical spouted beds M. Olazar, J. Bilbao and M.J. San Jose; 6. Hydrodynamics of spout-fluid beds W. Zhong, B. Jin, M. Zhang and R. Xiao; 7. Spouted and spout-fluid beds with draft tubes M.H. Morgan, H. Littman, Z. Grbavcic and J.D. Paccione; 8. Particle segregation and mixing G. Rovero and N. Piccinini; 9. Heat and mass transfer A. Kmiec and S. Englart; 10. Powder-particle spouted beds T. Ishikura and H. Nagashima; 11. Drying of particulate solids M.L. Passos, E.F. Costa Jr and A.S. Mujumdar; 12. Drying of solutions, slurries and pastes J.T. Freire, M.C. Ferreira and F.B. Freire; 13. Granulation and particle coating S.C.S. Rocha and O.P. Taranto; 14. The Wurster process J. Seville, S. Palmer and A. Ingram; 15. Gasification and combustion A.P. Watkinson and A. Lisboa; 16. Spouted bed electrolytic reactors J.W. Evans and V. Jiricny; 17. Scale-up, slot-rectangular and multiple spouting J. Grace and C.J. Lim; 18. Mechanical spouting T. Szentmarjay, E. Pillai and Judit Toth; 19. Catalytic reactors and their modelling G. Rovero and N. Piccinini; 20. Liquid and liquid-gas spouting Z.B. Grbavcic, H. Littman and M.H. Morgan III; 21. Concluding chapter N. Epstein and J. Grace Since the pioneering text by Mathur and Epstein over 35 years ago, much of the work on this subject has been extended or superseded, producing an enormous body of scattered literature. This edited volume unifies the subject, pulling material together and underpinning it with fundamental theory to produce the only complete, up-to-date reference on all major areas of spouted bed research and practice. With contributions from internationally renowned research groups, this book guides the reader through new developments, insights and models. The hydrodynamic and reactor models of spouted and spout-fluid beds are examined, as well as such topics as particle segregation, heat and mass transfer, mixing and scale-up. Later chapters focus on drying, particle-coating and energy-related applications based on spouted and spout-fluid beds. This is a valuable resource for chemical and mechanical engineers in research and industry Spouted bed processes Wirbelschicht (DE-588)4066372-3 gnd rswk-swf Wirbelschicht (DE-588)4066372-3 s 1\p DE-604 Epstein, Norman edt Grace, John R. edt Erscheint auch als Druckausgabe 978-0-521-51797-3 https://doi.org/10.1017/CBO9780511777936 Verlag URL des Erstveröffentlichers Volltext 1\p cgwrk 20201028 DE-101 https://d-nb.info/provenance/plan#cgwrk |
spellingShingle | Spouted and spout-fluid beds fundamentals and applications Machine generated contents note: 1. Introduction N. Epstein and J. Grace; 2. Initiation of spouting X. Bi; 3. Empirical and analytical hydrodynamics N. Epstein; 4. Computational fluid dynamic modelling of spouted beds X. Bao, W. Du and J. Xu; 5. Conical spouted beds M. Olazar, J. Bilbao and M.J. San Jose; 6. Hydrodynamics of spout-fluid beds W. Zhong, B. Jin, M. Zhang and R. Xiao; 7. Spouted and spout-fluid beds with draft tubes M.H. Morgan, H. Littman, Z. Grbavcic and J.D. Paccione; 8. Particle segregation and mixing G. Rovero and N. Piccinini; 9. Heat and mass transfer A. Kmiec and S. Englart; 10. Powder-particle spouted beds T. Ishikura and H. Nagashima; 11. Drying of particulate solids M.L. Passos, E.F. Costa Jr and A.S. Mujumdar; 12. Drying of solutions, slurries and pastes J.T. Freire, M.C. Ferreira and F.B. Freire; 13. Granulation and particle coating S.C.S. Rocha and O.P. Taranto; 14. The Wurster process J. Seville, S. Palmer and A. Ingram; 15. Gasification and combustion A.P. Watkinson and A. Lisboa; 16. Spouted bed electrolytic reactors J.W. Evans and V. Jiricny; 17. Scale-up, slot-rectangular and multiple spouting J. Grace and C.J. Lim; 18. Mechanical spouting T. Szentmarjay, E. Pillai and Judit Toth; 19. Catalytic reactors and their modelling G. Rovero and N. Piccinini; 20. Liquid and liquid-gas spouting Z.B. Grbavcic, H. Littman and M.H. Morgan III; 21. Concluding chapter N. Epstein and J. Grace Spouted bed processes Wirbelschicht (DE-588)4066372-3 gnd |
subject_GND | (DE-588)4066372-3 |
title | Spouted and spout-fluid beds fundamentals and applications |
title_alt | Spouted & Spout-Fluid Beds |
title_auth | Spouted and spout-fluid beds fundamentals and applications |
title_exact_search | Spouted and spout-fluid beds fundamentals and applications |
title_full | Spouted and spout-fluid beds fundamentals and applications edited by Norman Epstein, John R. Grace |
title_fullStr | Spouted and spout-fluid beds fundamentals and applications edited by Norman Epstein, John R. Grace |
title_full_unstemmed | Spouted and spout-fluid beds fundamentals and applications edited by Norman Epstein, John R. Grace |
title_short | Spouted and spout-fluid beds |
title_sort | spouted and spout fluid beds fundamentals and applications |
title_sub | fundamentals and applications |
topic | Spouted bed processes Wirbelschicht (DE-588)4066372-3 gnd |
topic_facet | Spouted bed processes Wirbelschicht |
url | https://doi.org/10.1017/CBO9780511777936 |
work_keys_str_mv | AT epsteinnorman spoutedandspoutfluidbedsfundamentalsandapplications AT gracejohnr spoutedandspoutfluidbedsfundamentalsandapplications AT epsteinnorman spoutedspoutfluidbeds AT gracejohnr spoutedspoutfluidbeds |