Zobrazeno 1 - 10 of 28 pro vyhledávání: '"Nicholas Crisp"'
1
RF Helicon-based Inductive Plasma Thruster (IPT) Design for an Atmosphere-Breathing Electric Propulsion system (ABEP)
Autor: Miquel Sureda, Badia Belkouchi, Valentín Cañas, Silvia Rodriguez-Donaire, C. Traub, Sabrina Livadiotti, R. M. Dominguez, Steve Edmondson, Jonathan Becedas, Francesco Romano, Alastair Straker, Peter Roberts, Rachel Villain, Sarah J. Haigh, V. Sulliotti-Linner, R. Outlaw, Daniel García-Almiñana, V. Hanessian, Morten Bisgaard, A. Conte, Yung-An Chan, A. Mølgaard, Jens Nielsen, Luciana Sinpetru, Stefanos Fasoulas, David Gonzalez, Nicholas Crisp, Dhiren Kataria, B. Heißerer, Georg H. Herdrich, A. Schwalber, Stephen D. Worrall, Claire Huyton, Vitor Toshiyuki Abrao Oiko, J. S. Perez, Katharine Smith
Publikováno v: Romano, F, Chan, Y, Herdrich, G, Traub, C, Fasoulas, S, Roberts, P, Smith, K, Edmondson, S, Haigh, S, Crisp, N, Oiko, V T A, Worrall, S D, Livadiotti, S, Huyton, C, Sinpetru, L, Straker, A, Becedas, J, Domínguez, R M, González, D, Cañas, V, Sulliotti-linner, V, Hanessian, V, Mølgaard, A, Nielsen, J, Bisgaard, M, Garcia-almiñana, D, Rodriguez-donaire, S, Sureda, M, Kataria, D, Outlaw, R, Villain, R, Perez, J S, Conte, A, Belkouchi, B, Schwalber, A & Heißerer, B 2020, ' RF helicon-based inductive plasma thruster (IPT) design for an Atmosphere-Breathing Electric Propulsion system (ABEP) ', Acta Astronautica . https://doi.org/10.1016/j.actaastro.2020.07.008
Acta Astronautica
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Challenging space missions include those at very low altitudes, where the atmosphere is source of aerodynamicdrag on the spacecraft. To extend such missions lifetime, an efficient propulsion system is required. Onesolution is Atmosphere-Breathing Ele
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d854bc8ffc2e0f3f811d43429bbc6cb5
https://doi.org/10.1016/j.actaastro.2020.07.008
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2
Health Technology Assessment in Support of National Health Insurance in South Africa
Autor: Maryke Wilkinson, Andrew Lofts Gray, Roger Wiseman, Tamara Kredo, Karen Cohen, Jacqui Miot, Mark Blecher, Paul Ruff, Yasmina Johnson, Mladen Poluta, Shelley McGee, Trudy D Leong, Mark Brand, Fatima Suleman, Esnath Maramba, Marc Blockman, Janine Jugathpal, Susan Cleary, Noluthando Nematswerani, Sarvashni Moodliar, Andy Parrish, Khadija K Jamaloodien, Tienie Stander, Kim MacQuilkan, Nicholas Crisp, Thomas Wilkinson
Publikováno v: International Journal of Technology Assessment in Health Care. 38
South Africa has embarked on major health policy reform to deliver universal health coverage through the establishment of National Health Insurance (NHI). The aim is to improve access, remove financial barriers to care, and enhance care quality. Heal
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd1b6b612b1af35242c3e80e2f1ba46d
https://doi.org/10.1017/s0266462322000265
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4
System modelling of very low Earth orbit satellites for Earth observation
Autor: Katharine Smith, Georg H. Herdrich, V. Hanessian, V. Sulliotti-Linner, Peter Roberts, Vitor Toshiyuki Abrao Oiko, Francesco Romano, Nicholas Crisp, Daniel García-Almiñana, Simon Seminari, Dhiren Kataria
Publikováno v: Crisp, N H, Roberts, P C E, Romano, F, Smith, K L, Oiko, V T A, Sulliotti-Linner, V, Hanessian, V, Herdrich, G H, García-Almiñana, D, Kataria, D & Seminari, S 2021, ' System modelling of very low Earth orbit satellites for Earth observation ', Acta Astronautica, vol. 187, pp. 475-491 . https://doi.org/10.1016/j.actaastro.2021.07.004
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
The operation of satellites in very low Earth orbit (VLEO) has been linked to a variety of benefits to both the spacecraft platform and mission design. Critically, for Earth observation (EO) missions a reduction in altitude can enable smaller and les
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0719673c08026e4e0d8e6854274f1b38
https://pure.manchester.ac.uk/ws/files/196964861/AAM.pdf
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5
An integrated design methodology for the deployment of constellations of small satellites
Autor: Peter M. Hollingsworth, Katharine Smith, Nicholas Crisp
Publikováno v: Crisp, N, Smith, K & Hollingsworth, P 2019, ' An Integrated Design Methodology for the Deployment of Constellations of Small Satellites ', The Aeronautical Journal . https://doi.org/10.1017/aer.2019.57
A growing interest in constellations of small satellites has recently emerged due to the increasing capability of these platforms and their reduced time and cost of development. However, in the absence of dedicated launch services for these systems,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f99ff5cb76fd6f37061858b7f5ed5e8a
https://doi.org/10.1017/aer.2019.57
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6
In-orbit aerodynamic coefficient measurements using SOAR (Satellite for Orbital Aerodynamics Research)
Autor: C. Traub, Dhiren Kataria, Georg H. Herdrich, Morten Bisgaard, V. Sulliotti-Linner, Simon Christensen, Badia Belkouchi, R. M. Dominguez, Miquel Sureda, Luciana Sinpetru, Yung-An Chan, Silvia Rodriguez-Donaire, Katharine Smith, Simon Seminari, A. Conte, A. Macario Rojas, Brandon Holmes, Jens Nielsen, Stefanos Fasoulas, Francesco Romano, Peter Roberts, Sabrina Livadiotti, Rachel Villain, Jonathan Becedas, Nicholas Crisp, Sarah J. Haigh, Daniel García-Almiñana, Steve Edmondson, Vitor Toshiyuki Abrao Oiko
Publikováno v: Acta Astronautica
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
The Satellite for Orbital Aerodynamics Research (SOAR) is a CubeSat mission, due to be launched in 2021, to investigate the interaction between different materials and the atmospheric flow regime in very low Earth orbits (VLEO). Improving knowledge o
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f8913e61ec9728a9caa983abd958744
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7
The Benefits of Very Low Earth Orbit for Earth Observation Missions
Autor: R. M. Dominguez, Dhiren Kataria, Claire Huyton, Rachel Villain, Miquel Sureda, Katherine Smith, Silvia Rodriguez-Donaire, Francesco Romano, Jens Frederik Dalsgaard Nielsen, Sarah J. Haigh, Yung-An Chan, Nicholas Crisp, V. Hanessian, Stephen D. Worrall, C. Traub, Sabrina Livadiotti, Daniel García-Almiñana, Georg H. Herdrich, David Gonzalez, Morten Bisgaard, A. Conte, Steve Edmondson, Stefanos Fasoulas, Vitor Toshiyuki Abrao Oiko, B. Heißerer, J. S. Perez, A. Mølgaard, Badia Belkouchi, Peter Roberts, Luciana Sinpetru, Jonathan Becedas, R. Outlaw, A. Schwalber
Publikováno v: Crisp, N, Roberts, P, Livadiotti, S, Abrao Oiko, V T, Edmondson, S, Haigh, S, Huyton, C, Sinpetru, L, Smith, K, Worrall, S, Becedas, J, Dominiguez, R M, Gonzalez, D, Hanessian, V, Molgaard, A, Nielsen, J, Bisgaard, M, Chan, Y A, Fasoulas, S, Herdrich, G H, Romano, F, Traub, C, Garcia-Alminana, D, Rodriguez-Donaire, S, Sureda, M, Kataria, D, Outlaw, R, Belkouchi, B, Conte, A, Perez, J S, Villain, R, Heiberer, A & Schwalber, A 2020, ' The Benefits of Very Low Earth Orbit for Earth Observation Missions ', Progress in Aerospace Sciences, vol. 117 . https://doi.org/10.1016/j.paerosci.2020.100619
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Progress in Aerospace Sciences
Very low Earth orbits (VLEO), typically classified as orbits below approximately 450 km in altitude, have the potential to provide significant benefits to spacecraft over those that operate in higher altitude orbits. This paper provides a comprehensi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28d35d1fe8513c683b35cce4416d7182
https://www.research.manchester.ac.uk/portal/en/publications/the-benefits-of-very-low-earth-orbit-for-earth-observation-missions(4fc18317-c19b-4316-a660-ad6899d72fbf).html
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8
A review of gas-surface interaction models for orbital aerodynamics applications
Autor: Steve Edmondson, Sarah J. Haigh, R. Outlaw, Daniel García-Almiñana, Claire Huyton, Valentín Cañas, Georg H. Herdrich, Luciana Sinpetru, R. M. Dominguez, A. Conte, Nicholas Crisp, Stephen D. Worrall, Peter Roberts, Jens Frederik Dalsgaard Nielsen, C. Traub, Jonathan Becedas, Morten Bisgaard, Brandon Holmes, Stefanos Fasoulas, Katharine Smith, Simon Christensen, Badia Belkouchi, Francesco Romano, Dhiren Kataria, Vitor Toshiyuki Abrao Oiko, J. S. Perez, Rachel Villain, Yung-An Chan, Miquel Sureda, Silvia Rodriguez-Donaire, A. Mølgaard, Sabrina Livadiotti
Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Progress in Aerospace Sciences
Renewed interest in Very Low Earth Orbits (VLEO) - i.e. altitudes below 450 km - has led to an increased demand for accurate environment characterisation and aerodynamic force prediction. While the former requires knowledge of the mechanisms that dri
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::524b63cf06d76c00a59198a04dd675f0
http://hdl.handle.net/2117/335462
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9
Atmospheric interaction with nanosatellites from observed orbital decay
Autor: A. Macario-Rojas, Katharine Smith, Peter Roberts, Nicholas Crisp
Publikováno v: Macario Rojas, A, Smith, K, Crisp, N & Roberts, P 2018, ' Atmospheric Interaction with Nanosatellites from Observed Orbital Decay ', Advances in Space Research, vol. 61, no. 12, pp. 2972-2982 . https://doi.org/10.1016/j.asr.2018.02.022
Nanosatellites have gained considerable presence in low Earth orbits wherein the atmospheric interaction with exposed surfaces plays a fundamental role in the evolution of motion. These aspects become relevant with the increasing applicability of nan
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a028c45457f86ca4674b214cc9348e18
https://doi.org/10.1016/j.asr.2018.02.022
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10
On the exploitation of differential aerodynamic lift and drag as a means to control satellite formation flight
Autor: Steve Edmondson, Leonardo Ghizoni, Gerardo González, Stephen D. Worrall, Peter Roberts, Sarah J. Haigh, Sabrina Livadiotti, R. M. Dominguez, R. Outlaw, Daniel García-Almiñana, Badia Belkouchi, Rachel Villain, Francesco Romano, Nicholas Crisp, Vitor Toshiyuki Abrao Oiko, Stefanos Fasoulas, J. S. Perez, Adam Boxberger, B. Heißerer, Miquel Sureda, Victor Jungnell, Silvia Rodriguez-Donaire, Kristian Bay, A. Conte, Jonathan Becedas, Rachel Lyons, Georg H. Herdrich, Jonas Morsbøl, Katharine Smith, A. Schwalber, Dhiren Kataria, T. Binder, David Gonzalez, C. Traub
Publikováno v: Traub, C, Romano, F, Binder, T, Boxberger, A, Herdrich, G H, Fasoulas, S, Roberts, P, Smith, K, Edmondson, S, Haigh, S, Crisp, N, Abrao Oiko, V T, Lyons, R, Worrall, S, Livadiotti, S, Becedas, J, Gonzalez, G, Dominguez, R M, Gonzalez, D, Ghizoni, L, Jungnell, V, Bay, K, Morsbøl, J, Garcia-Almiñana, D, Rodriguez-Donaire, S, Sureda, M, Kataria, D, Outlaw, R, Villain, R, Perez, J S, Conte, A, Belkouchi, B, Schwalber, A & Heißerer, B 2019, ' On the exploitation of differential aerodynamic lift and drag as a means to control satellite formation flight ', CEAS Space Journal, vol. 12 . https://doi.org/10.1007/s12567-019-00254-y
Recercat. Dipósit de la Recerca de Catalunya
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UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
CEAS Space Journal
In order for a satellite formation to maintain its intended design despite present perturbations (formation keeping), to change the formation design (reconfiguration) or to perform a rendezvous maneuver, control forces need to be generated. To do so,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::254b76f2820cd36ea156f1c5ffc23d8a
https://www.research.manchester.ac.uk/portal/en/publications/on-the-exploitation-of-differential-aerodynamic-lift-and-drag-as-a-means-to-control-satellite-formation-flight(218bf171-9d1f-46cf-b55d-b8cab8063476).html
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