Trans-Domain Amphibious Unmanned Platform Based on Coaxial Counter-Propellers: Design and Experimental Validation by Yong Gao, Hao Zhang, Hua Yang, Shizhe Tan, T. Aaron Gulliver, Tingting Lu

“…Compared with traditional amphibious machines, the TDAV design is streamlined and thus inherits the advantages of both the Bamboo Dragonfly and underwater AUVs. The proposed TDAV has a coaxial counter-propeller-tilting platform which satisfies the power and small diameter fuselage requirements, and the blades fold to reduce underwater drag and facilitate transportation. …”
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Wearable Vibration Sensor for Measuring the Wing Flapping of Insects by Ryota Yanagisawa, Shunsuke Shigaki, Kotaro Yasui, Dai Owaki, Yasuhiro Sugimoto, Akio Ishiguro, Masahiro Shimizu

“…As a result of attaching this sensor to the wings of a moth and a dragonfly and measuring the flapping of the wings, we were able to measure the frequency of the flapping with high accuracy. …”
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An Improved Equilibrium Optimizer Algorithm for Features Selection: Methods and Analysis by Dina A. Elmanakhly, Mohamed Mostafa Saleh, Essam A. Rashed

“…Comparative tests with different well-known algorithms such as grey wolf optimization, grasshopper optimization, particle swarm optimization, whale optimization, dragonfly, and improved salp swarm algorithms are considered. …”
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An effective model parameter estimation of PEMFCs using GWO algorithm and its variants by Ahmed A. Zaki Diab, Hussien I. Abdul‐Ghaffar, Abdelsalam A. Ahmed, Husam A. Ramadan

“…Moreover, Optimisation algorithms of Ant Lion Optimiser, Atom search optimisation, Dragonfly algorithm, and Multi‐Verse Optimiser have been applied to estimate the parameters of Proton Exchange Membrane Fuel Cells models for the validation purpose. …”
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Relationships between characteristics of macrobenthic assemblages and environmental variables in the Heihe River Basin, China by Yu Wang, Juan-juan Liu, Bao-long Li, Wei Liu, Yi-feng Zuo, De-xing Kong, Jia-le Zhu

“…Argyroneta aquatica, Chlaznius sp., dragonfly nymphs, Palaemon modestus, Radix auricularia, Cyraulus albus and Suecinea sp. were the dominant species in the whole study region; most of these are pollution-tolerant and moderately pollution-tolerant species. …”
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Biomimetic Nanopillar Silicon Surfaces Rupture Fungal Spores by Denver P. Linklater, Phuc H. Le, Arturo Aburto-Medina, Russell J. Crawford, Shane Maclaughlin, Saulius Juodkazis, Elena P. Ivanova

“…In this study, we developed a biomimetic nanostructured surface inspired by dragonfly wings. A high-aspect-ratio nanopillar topography was created on silicon (nano-Si) surfaces using inductively coupled plasma reactive ion etching (ICP RIE). …”
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Subtle Variations in Surface Properties of Black Silicon Surfaces Influence the Degree of Bactericidal Efficiency by Chris M. Bhadra, Marco Werner, Vladimir A. Baulin, Vi Khanh Truong, Mohammad Al Kobaisi, Song Ha Nguyen, Armandas Balcytis, Saulius Juodkazis, James Y. Wang, David E. Mainwaring, Russell J. Crawford, Elena P. Ivanova

“…Much inspiration has been drawn recently from naturally occurring mechano-bactericidal surfaces such as the wings of cicada (Psaltoda claripennis) and dragonfly (Diplacodes bipunctata) species in fabricating their synthetic analogs. …”
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Correction Method of Three-Axis Magnetic Sensor Based on DA–LM by Li Yang, Caihong Li, Song Zhang, Chaoqun Xu, Hun Chen, Shuting Xiao, Xiaoyu Tang, Yongxin Li

“…In this paper, the error correction method was proposed to tackle the problem, which combines the Dragonfly algorithm (DA) and the Levenberg–Marquardt (LM) algorithm, thereby solving the problem of the LM algorithm and improving the accuracy of solving error parameters. …”
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Highly Efficient Nanoscale Analysis of Plant Stomata and Cell Surface Using Polyaddition Silicone Rubber by Yi He, Yi He, Kaiyue Zhou, Zhemin Wu, Boxiu Li, Junliang Fu, Chinho Lin, Dean Jiang

“…Using this method, we successfully monitored the dynamic variation of stomata and observed the nanoscale microstructure of soybean leaf trichomes and dragonfly wings. Additionally, compared with the analytical precision and the time used for preparing the observation samples between PSIT and traditional SEM, the results suggested that the analytical precision of PSIT was the same to traditional SEM, but the PSIT was more easy to operate. …”
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Inter‐patch connectivity and intra‐patch structure differentially alter prey consumption by multiple predators by Kristopher A. Pitcher, Daniel A. Soluk

“…Using artificial pond mesocosms and multiple prey types, we manipulated plant density (SHC: low, high) and inter‐patch distance (FHC: short, long) in a full factorial design to test for potential interactive effects of these factors on competition and predation by a dragonfly larva (Anax junius) and fish predator (Lepomis cyanallus). …”
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Surface slicks are pelagic nurseries for diverse ocean fauna by Jonathan L. Whitney, Jamison M. Gove, Margaret A. McManus, Katharine A. Smith, Joey Lecky, Philipp Neubauer, Jana E. Phipps, Emily A. Contreras, Donald R. Kobayashi, Gregory P. Asner

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Binary Whale Optimization Algorithm for Dimensionality Reduction by Abdelazim G. Hussien, Diego Oliva, Essam H. Houssein, Angel A. Juan, Xu Yu

“…Furthermore, the two binary variants introduced here were compared with three famous and well-known optimization algorithms in this domain, such as Particle Swarm Optimizer (PSO), three variants of binary ant lion (bALO1, bALO2, and bALO3), binary Dragonfly Algorithm (bDA) as well as the original WOA, over 24 benchmark datasets from the UCI repository. …”
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Towards Bio-Inspiration, Development, and Manufacturing of a Flapping-Wing Micro Air Vehicle by P. Lane, G. Throneberry, I. Fernandez, M. Hassanalian, R. Vasconcellos, A. Abdelkefi

“…Each system has a tandem wing configuration inspired by a dragonfly, with wing shapes inspired by a bumblebee. …”
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High karyotypic variation in Orthemis Hagen, 1861 species, with insights about the neo-XY in Orthemis ambinigra Calvert, 1909 (Libellulidae, Odonata) by Liliana M. Mola, María Florencia Fourastié, Silvia Susana Agopian

“…The American dragonfly genus Orthemis Hagen, 1861 is mainly found in the Neotropical region. …”
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Bio-mimicking nano and micro-structured surface fabrication for antibacterial properties in medical implants by Alka Jaggessar, Hesam Shahali, Asha Mathew, Prasad K. D. V. Yarlagadda

“…This review discusses the surface structures of cicada, dragonfly and butterfly wings, shark skin, gecko feet, taro and lotus leaves, emphasising the relationship between nano-structures and high surface contact angles on self-cleaning and bactericidal properties. …”
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Rapid, simple and quantitative detection of metolcarb residues in apples by surface-enhanced Raman scattering by Yuhong Wang, Mingli Wang, Xin Sun, Guochao Shi, Wanli Ma, Lijian Ren

“…A rapid and simple detection method of metolcarb residues in apples with spectral analysis technology was achieved drawing support from the high sensitive and flexible silver/dragonfly wing (Ag/DW) surface-enhanced Raman scattering (SERS) substrates. …”
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Copper Exposure Affects Anti-Predatory Behaviour and Acetylcholinesterase Levels in <i>Culex pipiens</i> (Diptera, Culicidae) by Nermeen R. Amer, Sharon P. Lawler, Nawal M. Zohdy, Aly Younes, Wael M. ElSayed, Guillaume Wos, Samah Abdelrazek, Hind Omer, Richard E. Connon

“…Copper had no significant effect on larvae eaten by dragonflies. Copper inhibited the AChE enzyme across both generations at 500 µg L⁻¹. …”
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Optimizing PV Sources and Shunt Capacitors for Energy Efficiency Improvement in Distribution Systems Using Subtraction-Average Algorithm by Idris H. Smaili, Dhaifallah R. Almalawi, Abdullah M. Shaheen, Hany S. E. Mansour

“…For both investigated systems, the proposed ASABT outcomes are compared with the Coati optimization algorithm, the Osprey optimization algorithm (OOA), the dragonfly algorithm (DA), and SABT methods; the proposed ASABT shows superior outcomes, especially in the standard deviation of the obtained losses.…”
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The Combined Effects of Warming and Body Size on the Stability of Predator-Prey Interactions by Pavel Kratina, Benjamin Rosenbaum, Benjamin Rosenbaum, Bruno Gallo, Bruno Gallo, Elena L. Horas, Elena L. Horas, Eoin J. O’Gorman

“…We experimentally tested how water temperature alters the functional response and population stability of dragonfly nymphs (Cordulegaster boltonii) feeding on freshwater amphipods (Gammarus pulex) across a gradient of their body size ratios. …”
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Dark Matter in Fractional Gravity III: Dwarf Galaxies Kinematics by Francesco Benetti, Andrea Lapi, Giovanni Gandolfi, Minahil Adil Butt, Yacer Boumechta, Balakrishna S. Haridasu, Carlo Baccigalupi

“…In this paper, we investigate further, to probe FG via the high-quality data of individual dwarf galaxies, by exploiting the rotation velocity profiles inferred from stellar and gas kinematic measurements in eight dwarf irregulars, and the projected velocity dispersion profiles inferred from the observed dynamics of stellar tracers in seven dwarf spheroidals and in the ultra-diffuse galaxy DragonFly 44. We find that FG can reproduce extremely well the rotation and dispersion curves of the analyzed galaxies, performing in most instances significantly better than the standard Newtonian setup.…”
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