Radar Signatures of Drones Equipped With Heavy Payloads and Dynamic Payloads Generating Inertial Forces by Samiur Rahman, Duncan A. Robertson, Mark A. Govoni

“…Micro-Doppler analysis has revealed that (i) the degree of fluctuation in helicopter rotor modulation (HERM) lines in long integration spectrograms does not correlate with the presence or absence of a heavy payload and (ii) the blade flashes in fully sampled, short integration spectrograms confirm that the tip velocity and rotation rate increase with payload weight as extra thrust is required. …”
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Comparison of two non-invasive arterial blood pressure monitoring techniques in brown bears (Ursus arctos) by Jacopo Morelli, Angela Briganti, Boris Fuchs, Ðuro Huber, Alina L. Evans, Slaven Reljić, Jon M. Arnemo

“…Monitoring arterial blood pressure (BP), represents a more accurate evaluation of hemodynamics than heart rate alone and is essential for preventing and treating intra- and post-operative complications in wildlife chemical immobilization.The objectives of the study were to test the correlation between standard oscillometry and Korotkoff's technique in anesthetized free-ranging brown bears in Croatia and Scandinavia and to assess the blood pressure in both locations.Five bears were snared and darted with xylazine and ketamine in Croatia, and 20 bears were darted from a helicopter with medetomidine and tiletamine-zolazepam in Scandinavia. …”
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Oxidative Stress, Hypoxia-Inducible Factor-1α, and Nuclear Factor-Erythroid 2-Related Factor 2 in the Hearts of Rats Exposed to Intermittent Hypobaric Hypoxia by Wardaya Wardaya, Wawan Mulyawan, Sri Widia A Jusman, Mohamad Sadikin

“… Hypobaric hypoxia is situation that might occur to helicopter pilots in Indonesia who must fly at an altitude of more than 3,048 m such as in Papua. …”
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UNMANNED AERIAL VEHICLES FOR PESTICIDES AND FERTILIZERS APPLICATION IN PRECISION FARMING SYSTEM by I. G. Smirnov, L. A. Marchenko, G. I. Lichman, T. V. Mochkova, A. Yu. Spiridonov

“…For variable rate application of plant protection products and fertilizers the agrarians prefer UAVs of reusable, non-aerodrome basing, with small take-off for takeoff or vertical take-off and vertical landing, low-altitude, helicopter, rotary-wing and multi-rotor types equipped with an autopilot and a system for differentiating the distribution of fertilizer working fluids and pesticides for a set program, developed in accordance with the agrochemical cartogram and field phytosanitary condition. …”
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Effective Risk Detection for Natural Gas Pipelines Using Low-Resolution Satellite Images by Daniel Ochs, Karsten Wiertz, Sebastian Bußmann, Kristian Kersting, Devendra Singh Dhami

“…To report potential risks along pipelines, several steps are taken such as manual inspection and helicopter flights; however, these solutions are expensive and the flights are environmentally unfriendly. …”
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Non-invasive assessment of animal exercise stress: real-time PCR of GLUT4, COX2, SOD1 and HSP70 in avalanche military dog saliva by S. Diverio, G. Guelfi, O. Barbato, W. Di Mari, M.G. Egidi, M.M. Santoro

“…Rectal temperature (RT) and saliva samples were collected the day before the trial (T0), immediately after the descent from a helicopter at the onset of a simulated avalanche search and rescue operation (T1), after the discovery of the buried person (T2) and 2 h later (T3). …”
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Stable isotope data (oxygen-18 and deuterium) from surveys of lakes, wetlands, rivers, and input waters across the South Athabasca Oil Sands region, Alberta, 2007–2009 by J.J. Gibson, S.J. Birks, M.C. Moncur

“…Lake, wetland, and river sampling were conducted by helicopter during late summer, capturing conditions close to peak evaporative enrichment. …”
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Isotopic and geochemical surveys of lakes in coastal B.C.: Insights into regional water balance and water quality controls by J.J. Gibson, S.J. Birks, Y. Yi, P. Shaw, M.C. Moncur

“…Study focus: A stable isotope mass balance method is applied to estimate evaporation loss and water yield from a remote network of 560 lakes on Vancouver Island and coastal B.C., based on helicopter sampling surveys conducted between 2008 and 2015. …”
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Pediatric hypothermic submersion incident – should we do chest compressions on a beating heart? by Steinar Einvik, Andreas Jorstad Kruger, Sven Erik Gisvold

“…Despite these findings a decision was made to continue ventilations and chest compressions during helicopter transport to the University hospital. Conclusion In an accidentally hypothermic pediatric submersion incident we decided to do full cardiopulmonary resuscitation to the hospital despite there were signs of circulation. …”
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Geomorphological and hydrological controls on sediment export in earthquake-affected catchments in the Nepal Himalaya by E. L. S. Graf, H. D. Sinclair, M. Attal, B. Gailleton, B. R. Adhikari, B. R. Baral

“…Based on published reports, new helicopter-based photography, and satellite data, we demonstrate that this event was sourced from a localised rainfall event between 4500 and 4800 m and that a significant fraction of the sediment was supplied from sources that were unrelated to the landslides generated by the Gorkha earthquake.…”
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Visibility of St Lawrence belugas to aerial photography, estimated by direct observation by Michael CS Kingsley, Isabelle Gauthier

“…By observing groups of belugas from a hovering helicopter and recording their disappearances and re-appearances, it was found that they were visible for 44.3% of the time, and that an appropriate correction for single photographs would be to multiply the photographic count by about 222% (SE 20%). …”
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VARIABLE RATE APPLICATION OF FERTILIZERS AND PESTICIDES USING UNMANNED AERIAL VEHICLES by L. A. Marchenko, G. I. Lichman, I. G. Smirnov, T. V. Mochkova, V. A. Kolesnikova

“…It is shown that for the differentiated application of fertilizers and pesticides, it is most expedient to use UAVs of helicopter and rotary-wing type flying at low speeds (30-40 km/h) and low altitudes (0.5-1.5 m) with a large payload (300-400 kg), as they most fully meet ecological and environmental requirements and ensure the safety of modern human-machine systems. …”
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ANN-Based Estimation of the Defect Severity in the Drilling of GFRP/Ti Multilayered Composite Structure by Igor Zhilyaev, Evgeny Chigrinets, Sergey Shevtsov, Samira Chotchaeva, Natalia Snezhina

“…The main purpose of this study was to develop a model for predicting the quality of holes drilled in the root part of the spar of helicopter main rotor blades made of glass fiber-reinforced plastic (GFRP)-Ti multilayer polymer composite. …”
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Keeping a Good Attitude: A Quaternion-Based Orientation Filter for IMUs and MARGs by Roberto G. Valenti, Ivan Dryanovski, Jizhong Xiao

“…We evaluate the effectiveness of the filter and show that it significantly outperforms other common methods, using publicly available datasets with ground-truth data recorded during a real flight experiment of a micro quadrotor helicopter.…”
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Description of Emergency Medical Services, treatment of cardiac arrest patients and cardiac arrest registries in Europe by Ingvild B. M. Tjelmeland, Siobhan Masterson, Johan Herlitz, Jan Wnent, Leo Bossaert, Fernando Rosell-Ortiz, Kristin Alm-Kruse, Berthold Bein, Gisela Lilja, Jan-Thorsten Gräsner, on behalf of GL2020 Epidemiology group and participating countries

“…Overall, the number of Emergency Medical Service missions, level of training of personnel, availability of Helicopter Emergency Medical Services and the involvement of first responders varied across and within countries. …”
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Drone-Borne Electromagnetic (DR-EM) Surveying in The Netherlands: Lab and Field Validation Results by Marios Karaoulis, Ipo Ritsema, Chris Bremmer, Marco De Kleine, Gualbert Oude Essink, Edvard Ahlrichs

“…The drone-borne electromagnetic (DR-EM) system has the ability and efficacy to fly over inaccessible areas and surface water. Compared to helicopter-borne electromagnetic surveys, the spatial resolution is much higher, which allows very detailed 3D mapping of subsurface targets, and the survey costs are relatively low. …”
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Analysis of Non Linear Frequency Modulation (NLFM) Waveforms for Pulse Compression Radar by Muhamad Ridwan Widyantara, Sugihartono -, Fiky Y. Suratman, Slamet Widodo, Pamungkas Daud

“…The three targets are commercial airplanes, helicopter and fighter. For detectability performance, NLFM Taylor can detect more clearly than LFM conventional.…”
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Experimental and numerical analysis of the consolidation process for additive manufactured continuous carbon fiber-reinforced polyamide 12 composites by Igor Zhilyaev, Stefan Grieder, Marco Küng, Christian Brauner, Michael Akermann, Jonas Bosshard, Petra Inderkum, João Francisco, Martin Eichenhofer

“…The simulation workflow is demonstrated and validated using experimental data from the manufacturing process of a typical aerospace part, specifically a helicopter hinge element.…”
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Monitoring Active Volcanos Using Aerial Images and the Orthoview Tool by Maria Marsella, Carla Nardinocchi, Cristina Proietti, Leonardo Daga, Mauro Coltelli

“…In addition, during the volcanic crisis, the frequent acquisition of oblique digital images from helicopter allows for quasi-real-time monitoring to support mitigation actions by civil protection. …”
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Introduction of Otolaryngology Outpatient Examination Training Program for junior residents as part of rural regional medical support in Japan by Takeshi Watanabe, Hayato Takayama, Hisayuki Hamada, Kenichi Kaneko, Kayoko Matsushima, Atsuko Nagatani

“…Methods This otolaryngology outpatient training program is randomly assigned, and conducted for 4–5 days a year, transported by a helicopter in Nagasaki Prefecture, which is a 30‐minute one‐way trip. …”
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