Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Lance E Christensen"'
Autor:
Witenberg S. R. Souza, Alexander J. Hart, Benedito J. B. Fonseca, Mansour Tahernezhadi, Lance E. Christensen
Publikováno v:
IEEE Access, Vol 12, Pp 1386-1407 (2024)
To assist gas distribution companies to effectively monitor their infrastructure and locate gas leaks, this paper considers the use of an Unmanned Aerial Vehicle (UAV) carrying a methane sensor to survey a region for gas leaks. As the UAV collects in
Externí odkaz:
https://doaj.org/article/d3e2f41fa7f0451b83461d694877ac72
Autor:
Galen D. Stucky, Takazo Shibuya, Rohit Bhartia, Lance E. Christensen, Isik Kanik, Lauren M. White, Adam Hoffmann, Michael J. Russell, Richard D. Kidd, Steven D. Vance
Publikováno v:
Astrobiology. 20:307-326
The molecules feeding life's emergence are thought to have been provided through the hydrothermal interactions of convecting carbonic ocean waters with minerals comprising the early Hadean oceanic crust. Few laboratory experiments have simulated anci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86e7c04bc59131b30c364413a654a995
https://doi.org/10.1089/ast.2018.1949
https://doi.org/10.1089/ast.2018.1949
Autor:
Joachim D. Pleil, Lance E. Christensen
Publikováno v:
Journal of breath research. 15(4)
Real-time monitoring of exhaled carbon dioxide (CO2), also known as capnography, is a valuable hospital tool for assessing patient health during anesthesia and in both the emergency department and critical care units. The fundamental measurement is r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1516d51a517e87ad19c89e5c1edd7e43
https://pubmed.ncbi.nlm.nih.gov/34525465
https://pubmed.ncbi.nlm.nih.gov/34525465
Publikováno v:
Applied optics. 60(7)
With the availability of high-power (milliwatts) single-mode tunable laser sources that operate at room temperature across the infrared (IR) region, tunable laser spectrometers have seen an explosion of growth in applications that include commercial,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aac9a2f0bfc771829c911550b15450a6
https://pubmed.ncbi.nlm.nih.gov/33690287
https://pubmed.ncbi.nlm.nih.gov/33690287
Publikováno v:
Journal of Breath Research. 16:036007
Tunable laser spectroscopy (TLS) near 2683 nm was used to measure carbon dioxide and water vapor inside a pilot mask during jet fighter flights. Measurement frequency was 100 Hz in order to capture breathing profiles and other gas flow dynamics. Anal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1912f2a6858a07aeefe4c82f6510ff15
https://doi.org/10.1088/1752-7163/ac740e
https://doi.org/10.1088/1752-7163/ac740e
Autor:
Carla Sofia Almeida Rocha, Steve Vance, Giuseppe Etiope, Paula M. Carreira, Maria O. Neves, José M. Marques, Ana Z. Miller, Lance E. Christensen, Shino Suzuki
Publikováno v:
Procedia Earth and Planetary Science. 17:646-649
The conceptual model of Cabeco de Vide mineral waters, issuing at the contact metamorphism zone developed by the local mafic/ultramafic pluton, is described. These mineral waters discharge with a temperature between 17 and 20°C, show a very alkaline
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3579085e7193629fde998a106cf8ca22
https://doi.org/10.1016/j.proeps.2016.12.173
https://doi.org/10.1016/j.proeps.2016.12.173
Publikováno v:
2019 International Conference on Unmanned Aircraft Systems (ICUAS).
This paper describes a data quality aware framework for developing a repeatable flight mission design for fugitive methane sniffing missions using fixed wing small unmanned aerial systems (sUAS) in rural areas. The design outlines general aircraft re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c466478c799344b6f142ca4c8ebef8f2
https://doi.org/10.1109/icuas.2019.8798176
https://doi.org/10.1109/icuas.2019.8798176
Autor:
Ana Z. Miller, Paula M. Carreira, Shino Suzuki, Lance E. Christensen, Giuseppe Etiope, Maria O. Neves, Steve Vance, José M. Marques, Carlos Frederico Duarte Rocha
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
15 páginas.--10 figuras.-- 2 tablas.-- 87 referencias.-- Supplementary data related to this article can be found at https://doi.org/10.1016/j.apgeochem.2018.07.011.
Continental active serpentinization of ultramafic rocks is today recognized as
Continental active serpentinization of ultramafic rocks is today recognized as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ff695ed22b45217a6d85b52a27f8c9d
http://hdl.handle.net/10261/168454
http://hdl.handle.net/10261/168454
Publikováno v:
2018 International Conference on Unmanned Aircraft Systems (ICUAS).
Accurate and precise measurements of wind are important for understanding atmospheric transport, especially when trying to localize and quantify natural gas emissions from pipeline leaks. This work looks at the applicability of measuring wind speed a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbfdc1b4def0be19140d11b00ecc8496
https://doi.org/10.1109/icuas.2018.8453418
https://doi.org/10.1109/icuas.2018.8453418
Autor:
María Paz Zorzano, Mark T. Lemmon, Lance E. Christensen, Daniel P. Glavin, Álvaro Vicente-Retortillo, Christopher P. McKay, Jennifer L. Eigenbrode, Jorge Pla-Garcia, Brad Sutter, Christopher R. Webster, Henrik Kahanpää, Daniel Viúdez-Moreiras, John C. Pearson, Melissa G. Trainer, Christina L. Smith, Rafael Navarro-González, P. Douglas Archer, Paul R. Mahaffy, Michael H. Wong, Andrew Steele, Patrice Coll, Ashwin R. Vasavada, Christopher H. House, Donald M. Hassler, Richard W. Zurek, G. Flesch, Pierre-Yves Meslin, Javier Gómez-Elvira, John E. Moores, Caroline Freissinet, Susanne P. Schwenzer, German Martinez, Scot Rafkin, Alexander A. Pavlov, Stanley P. Sander, Ari-Matti Harri, Charles Malespin, Sushil K. Atreya, Joy A. Crisp, Didier Keymeulen, Raina V. Gough, Maria Genzer, Javier Martin-Torres, Michael D. Smith
Publikováno v:
Science
Science, American Association for the Advancement of Science, 2018, 360 (6393), pp.1093-1096. ⟨10.1126/science.aaq0131⟩
Science, 2018, 360 (6393), pp.1093-1096. ⟨10.1126/science.aaq0131⟩
Digital.CSIC. Repositorio Institucional del CSIC
instname
Science, American Association for the Advancement of Science, 2018, 360 (6393), pp.1093-1096. ⟨10.1126/science.aaq0131⟩
Science, 2018, 360 (6393), pp.1093-1096. ⟨10.1126/science.aaq0131⟩
Digital.CSIC. Repositorio Institucional del CSIC
instname
Variable levels of methane in the martian atmosphere have eluded explanation partly because the measurements are not repeatable in time or location.We report in situ measurements at Gale crater made over a 5-year period by the Tunable Laser Spectrome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34c3f378c933500be54324ce03b0de8b
https://hal-insu.archives-ouvertes.fr/insu-01887409
https://hal-insu.archives-ouvertes.fr/insu-01887409