Showing 2,581 - 2,600 results of 2,815 for search '"helicopters"', query time: 0.14s Refine Results
  1. 2581

    Investigation of a possible malaria epidemic in an illegal gold mine in French Guiana: an original approach in the remote Amazonian forest by Maylis Douine, Alice Sanna, Helene Hiwat, Sébastien Briolant, Mathieu Nacher, Didier Belleoud, François Michel Le Tourneau, Hervé Bogreau, Franck De Laval

    Published 2019-03-01
    “…A medical unit, and six soldiers to ensure the security of the mission, were transported by helicopter. Results During the investigation, two malaria episodes were diagnosed among 46 persons. …”
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    Article
  2. 2582

    3D Reconstruction of Power Lines Using UAV Images to Monitor Corridor Clearance by Elżbieta Pastucha, Edyta Puniach, Agnieszka Ścisłowicz, Paweł Ćwiąkała, Witold Niewiem, Paweł Wiącek

    Published 2020-11-01
    “…Corridor clearance monitoring is usually performed either by a labor-intensive total station survey (TS), terrestrial laser scanning (TLS), or expensive airborne laser scanning (ALS) from a plane or a helicopter. This paper proposes a method that uses unmanned aerial vehicle (UAV) images to monitor corridor clearance. …”
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  3. 2583

    Catch Estimates and Species Composition of Recreational Fishing in Israel by Ori Frid, Tal Gavriel, Yigael Ben-Ari, Adi Weinberger, Hagar Yancovich-Shalom, Jonathan Belmaker

    Published 2023-01-01
    “…We comprehensively quantified recreational fishing using three complementary strategies: (1) ground surveys, including interviews with anglers on the coast, (2) personalized phone interviews, and (3) aerial surveys by helicopter. These methods were used to calculate annual recreational yield and to estimate species and size composition, which were then compared to the commercial fishing catch. …”
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    Article
  4. 2584

    A case of hemorrhagic shock due to intercostal artery injury that occurred during initial trauma care with multiple displaced rib fractures and traumatic head injury by Naoya Matsumoto, Nobuhiro Hayashi, Chika Morita, Yuji Taguchi, Minnie Chan, Yoshihiro Tagawa, Hideki Sakahira, Makoto Takaoka

    Published 2022-08-01
    “…A man in his 50s who was injured in a traffic accident was transferred to our institution by helicopter for emergency medical treatment. He underwent left thoracic drainage on site. …”
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    Article
  5. 2585

    Unified Accurate Attitude Control for Dual-Tiltrotor UAV with Cyclic Pitch Using Actuator Dynamics Compensated LADRC by Zexin Wang, Yingxun Wang, Zhihao Cai, Jiang Zhao, Ningjun Liu, Yanqi Zhao

    Published 2022-02-01
    “…This modification eliminates the oscillation of the original LADRC when applied on the plant with slow-response actuators, such as propeller and rotors of the helicopter. In this way, the stability and performance of the controller are improved. …”
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    Article
  6. 2586

    Efficacy and efficiency of indoor nighttime human external cargo mission simulation in a high-fidelity training Centre by Urs Pietsch, Volker Lischke, Stephen J. M. Sollid, Stephan Prückner, Lorenz Theiler, Robert Greif, Roland Albrecht

    Published 2020-06-01
    “…Abstract Background The human external cargo (HEC) operations conducted by Helicopter Emergency Medical Services (HEMS) rarely take place at night, making it difficult for crew members to attain and maintain the level of expertise needed to perform winch operations in the dark. …”
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    Article
  7. 2587

    SEARCHING LOST PEOPLE WITH UAVS: THE SYSTEM AND RESULTS OF THE CLOSE-SEARCH PROJECT by P. Molina, I. Colomina, T. Vitoria, P. F. Silva, J. Skaloud, W. Kornus, R. Prades, C. Aguilera

    Published 2012-07-01
    “…The main goal is to integrate a medium-size, helicopter-type Unmanned Aerial Vehicle (UAV), a thermal imaging sensor and an EGNOS-based multi-sensor navigation system, including an Autonomous Integrity Monitoring (AIM) capability, to support search operations in difficult-to-access areas and/or night operations. …”
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    Article
  8. 2588

    Pros and Cons of Structure for Motion Embarked on a Vehicle to Survey Slopes along Transportation Lines Using 3D Georeferenced and Coloured Point Clouds by Jérémie Voumard, Marc-Henri Derron, Michel Jaboyedoff, Pierrick Bornemann, Jean-Philippe Malet

    Published 2018-11-01
    “…Different platforms for the cameras were tested, such as a bike, car, train, funicular, helicopter and so on. The SfM-EV technique was also tested on several study sites to highlight its strengths and weaknesses and obtain data, such as the density of points, equations of errors, overlap ratios and image resolution. …”
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    Article
  9. 2589

    A Sequential MCMC Model for Reliability Evaluation of Offshore Wind Farms Considering Severe Weather Conditions by Huawei Chao, Bo Hu, Kaigui Xie, Heng-Ming Tai, Jiahao Yan, Yanlin Li

    Published 2019-01-01
    “…Further, the effects of other factors such as the enhanced protection for WT, the use of helicopter, and the weather characteristics of the OWF location on the reliability of OWF are discussed.…”
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  10. 2590

    Pre-hospital critical care management of severe hypoxemia in victims of Covid-19: a case series by Jens Otto Mæhlen, Roger Mikalsen, Hans Julius Heimdal, Marius Rehn, Jostein S. Hagemo, William Ottestad

    Published 2021-01-01
    “…Methods Three cases with similar clinical presentation were identified within the Norwegian national helicopter emergency medical service (HEMS) system. …”
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    Article
  11. 2591

    Shock Index for Early Detection of Low Plasma Fibrinogen in Trauma: A Prospective Observational Cohort Pilot Study by Josef Škola, Marcela Bílská, Michala Horáková, Václav Tégl, Jan Beneš, Roman Škulec, Vladimír Černý

    Published 2023-02-01
    “…Between January 2016 and February 2017, trauma patients admitted from the helicopter emergency medical service into two large trauma centres in the Czech Republic were prospectively assessed for demographic, laboratory and trauma-associated variables and shock index at scene, during transport and at admission to the emergency department. …”
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    Article
  12. 2592

    Coronary artery perforation secondary to lifesaving pericardiocentesis for cardiac tamponade: a case report by Daisuke Kanda, Takuro Takumi, Takeshi Sonoda, Ryo Arikawa, Kazuhiro Anzaki, Yuichi Sasaki, Mitsuru Ohishi

    Published 2021-01-01
    “…The pericardiocentesis was performed using a puncture needle on site, and the patient was immediately transferred to our hospital by helicopter. Contrast-enhanced computed tomography showed a small protrusion of contrast media on the inferior wall of the left ventricle, suggesting cardiac rupture due to acute myocardial infarction. …”
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    Article
  13. 2593

    Standardised data collection in prehospital critical care: a comparison of medical problem categories and discharge diagnoses by Miretta Tommila, Jukka Pappinen, Lasse Raatiniemi, Anssi Saviluoto, Tuukka Toivonen, Johannes Björkman, Jouni Nurmi

    Published 2022-04-01
    “…Abstract Background Prehospital medical problem reporting is essential in the management of helicopter emergency medical services (HEMS) operations. …”
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    Article
  14. 2594

    Determinants of occupational burnout among employees of the Emergency Medical Services in Poland by Piotr Leszczyński, Mariusz Panczyk, Marcin Podgórski, Krzysztof Owczarek, Robert Gałązkowski, Marcin Mikos, Anna Charuta, Tamara Zacharuk, Joanna Gotlib

    Published 2019-03-01
    “…Significant differences were shown between the group working only in the Helicopter Emergency Medical Service (HEMS) teams and the other services (land EMS, emergency rooms, etc.) at the level of p < 0.000. …”
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    Article
  15. 2595

    The use of UAVS for medical evacuation of patients by Andrii Humennyi, Rufat Jafarov, Oleksandr Kryvobok, Andrii Lolenko, Olha Stoliarchuk

    Published 2023-12-01
    “…In comparison with the traditional method of patient transport by helicopter, particular attention is given to unmanned aerial vehicles (UAVs), which boast an impressive list of advantages and are specially adapted for such functions. …”
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    Article
  16. 2596

    A Feasibility Analysis to Use Topological Optimization in Gear Design by B. E. Vasilyev, D. V. Kalinin, M. S. Svinareva, N. A. Gudkov

    Published 2017-08-01
    “…Some aviation engine and helicopter transmission schemes have a similar embodiment of a diaphragm of the helical gear. …”
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  17. 2597

    Unoccupied Aircraft Systems (UASs) Reveal the Morphological Changes at Stromboli Volcano (Italy) before, between, and after the 3 July and 28 August 2019 Paroxysmal Eruptions by Riccardo Civico, Tullio Ricci, Piergiorgio Scarlato, Daniele Andronico, Massimo Cantarero, Brett B. Carr, Emanuela De Beni, Elisabetta Del Bello, Jeffrey B. Johnson, Ulrich Kueppers, Luca Pizzimenti, Markus Schmid, Karen Strehlow, Jacopo Taddeucci

    Published 2021-07-01
    “…Despite Stromboli being one of the best-studied volcanoes worldwide, the UAS-based photogrammetry products of this study provide unprecedented high spatiotemporal resolution observations of its entire summit area, in a period when volcanic activity made the classic field inspections and helicopter overflights too risky. Routinely applied UAS operations represent an effective and evolving tool for volcanic hazard assessment and to support decision-makers involved in volcanic surveillance and civil protection operations.…”
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  18. 2598

    Statistical Analysis of Time-Varying Characteristics of Testability Index Based on NHPP by Zhiao Zhao, Yong Zhang, Guanjun Liu, Jing Qiu

    Published 2017-01-01
    “…To validate the FDR time-varying characteristics, we perform a simulation using two Shop Replaceable Units in a level flight indicator of a helicopter to evaluate the FDR value. Based on theoretic and simulative methods, the FDR expectation of the level flight indicator has an increasing or decreasing tendency in the early stages and tends to be a constant in later stages, while the variation of FDR keeps monotonously decreasing. …”
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    Article
  19. 2599

    Improvements and Operational Application of a Zero-Order Quick Assessment Model for Flood Damage: A Case Study in Italy by Luca Manselli, Daniela Molinari, Arianna Pogliani, Federica Zambrini, Giovanni Menduni

    Published 2022-01-01
    “…Knowledge of the affected area comes from the quick assessment procedure commonly performed by the National Fire Corps in any significant flood, employing low-altitude all-weather helicopter GPS surveys. The paper shows that combining the model with such a rapid mapping technique leads to a near real-time estimation of damages in the aftermath of floods. …”
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    Article
  20. 2600

    Onboard Science Instrument Autonomy for the Detection of Microscopy Biosignatures on the Ocean Worlds Life Surveyor by Mark Wronkiewicz, Jake Lee, Lukas Mandrake, Jack Lightholder, Gary Doran, Steffen Mauceri, Taewoo Kim, Nathan Oborny, Thomas Schibler, Jay Nadeau, James K. Wallace, Eshaan Moorjani, Chris Lindensmith

    Published 2024-01-01
    “…Flight-like requirements and computational constraints were used to lower barriers to infusion, similar to those available on the Mars helicopter, “Ingenuity.” We evaluated the OSIA's performance using simulated and laboratory data and conducted a live field test at the hypersaline Mono Lake planetary analog site. …”
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