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Journal articles on the topic 'Glidein'

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Published: 3 June 2025

Last updated: 31 July 2025

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1

Goldingay, Ross L. "Gliding performance in the yellow-bellied glider in low-canopy forest." Australian Mammalogy 36, no. 2 (2014): 254. http://dx.doi.org/10.1071/am14006.

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Knowledge of the gliding performance of gliding mammals is fundamental to understanding how these species have adapted to their environment and is of increasing relevance to their conservation. I describe aspects of the glide performance of the yellow-bellied glider (Petaurus australis) based on 22 glides of 17 individuals within 20–30-m-high open forest in western Victoria. Gliders launched into a glide from a horizontal branch that was, on average, 2.8 m below the top of a tree, 5.2 m out from the main trunk and 18.5 m above the ground. Gliders landed on the trunks of trees 5.8 m above the g

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Schultz, D., B. Riedel, and G. Merino. "Pyglidein – A Simple HTCondor Glidein Service." Journal of Physics: Conference Series 898 (October 2017): 092018. http://dx.doi.org/10.1088/1742-6596/898/9/092018.

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3

Goldingay, Ross L., and Brendan D. Taylor. "Gliding performance and its relevance to gap crossing by the squirrel glider (Petaurus norfolcensis)." Australian Journal of Zoology 57, no. 2 (2009): 99. http://dx.doi.org/10.1071/zo09003.

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Gliding mammals occur worldwide and many are subject to increasing levels of habitat fragmentation. Knowledge of their ability to cross tree-gaps by gliding is quite poor. We describe aspects of the gliding performance of the squirrel glider (Petaurus norfolcensis) based on recorded parameters of 85 glides of 73 individuals. Animals launched from a horizontal position ~1.7 m below the top of a tree and 2.3 m out from the main trunk. All but one glide was to the trunk of a tree, landing 5.7 m above the ground. Animals glided a mean of 21.5 ± 0.9 m (range 9–47 m) in a horizontal plane, with no s

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Wu, Zhengxing, Junzhi Yu, Jun Yuan, and Min Tan. "Analysis and verification of a miniature dolphin-like underwater glider." Industrial Robot: An International Journal 43, no. 6 (2016): 628–35. http://dx.doi.org/10.1108/ir-03-2016-0095.

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Purpose This paper aims to propose a novel design concept for a biomimetic dolphin-like underwater glider, which can offer the advantages of both robotic dolphins and underwater gliders to achieve high-maneuverability, high-speed and long-distance motions. Design/methodology/approach To testify the gliding capability of dolphin-like robot without traditional internal movable masses, the authors first developed a skilled and simple dolphin-like prototype with only gliding capability. The hydrodynamic coefficients, including lift, drag and pitching moment, are obtained through computational flui

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Taylor, B. D., and D. A. Rohweder. "Yellow-bellied gliders use glide poles to cross the Pacific Highway at Halfway Creek, north-east New South Wales." Australian Mammalogy 42, no. 3 (2020): 385. http://dx.doi.org/10.1071/am20015.

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The installation of glide poles to enable gliding mammals to cross wide road corridors has become a common feature of highway upgrades in eastern Australia. While frequent use by small species has been well documented, records of use by large glider species are scant. During 15 months of camera monitoring of two glide poles in the median of the Pacific Highway at Halfway Creek, north-east New South Wales, yellow-bellied gliders (Petaurus australis) were detected on nine occasions. On three of these occasions, video footage captured glide launches across the northbound carriageway. Our study pr

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Socha, John J., Farid Jafari, Yonatan Munk, and Greg Byrnes. "How animals glide: from trajectory to morphology." Canadian Journal of Zoology 93, no. 12 (2015): 901–24. http://dx.doi.org/10.1139/cjz-2014-0013.

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Animals that glide produce aerodynamic forces that enable transit through the air in both arboreal and aquatic environments. The relative ease of gliding compared with flapping flight has led to a large diversity of taxa that have evolved some degree of flight capability. Glide paths are curved, reflecting the changing forces on the animal as it progresses through its aerial trajectory. These changing forces can be under control of the glider, which uses specific aspects of anatomy to modulate lift, drag, and rotational moments on the body. However, gliders share no single anatomical or behavi

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Pridmore, Peter A., and Peter H. Hoffmann. "The aerodynamic performance of the feathertail glider, Acrobates pygmaeus (Marsupialia: Acrobatidae)." Australian Journal of Zoology 62, no. 1 (2014): 80. http://dx.doi.org/10.1071/zo13071.

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Photographic and videographic investigations of the aerodynamic performance of four captive adult Acrobates pygmeus are described. During short (1–4 m) glides, steep angles of descent (>45°) and large angles of attack (up to 50°) were used mid-flight, and the possums failed to achieve steady velocities. During longer (>10 m) glides steady velocities of 5.3–7.5 m s–1 were achieved, and glide angles of 21–42° and angles of attack between 36° and 45° were used. The best (lowest) glide angles used at steady velocity were similar to those documented in sugar gliders, but involved lower air sp

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Du, Xiaoxu, and Lianying Zhang. "Analysis on energy consumption of blended-wing-body underwater glider." International Journal of Advanced Robotic Systems 17, no. 2 (2020): 172988142092053. http://dx.doi.org/10.1177/1729881420920534.

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As a new type of underwater observation platform, underwater glider is widely used in marine explorations and military surveys, and most gliders are powered by their own batteries whose capacities are limited. It is therefore necessary to analyze the energy consumption of underwater glider. In this article, the variation law of seawater density changing with depth is considered; based on the theory of rigid body dynamics, the motion model of blended-wing-body underwater glider is established; the energy consumption model of each component module is accounted by analyzing the energy consumption

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9

Goldingay, Ross L., Brendan D. Taylor, and Tina Ball. "Wooden poles can provide habitat connectivity for a gliding mammal." Australian Mammalogy 33, no. 1 (2011): 36. http://dx.doi.org/10.1071/am10023.

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Gliding mammals may be susceptible to habitat fragmentation due to increased vulnerability to predators and road mortality if forced to cross roads and other canopy gaps on the ground. We document three trials where 6–12-m-high wooden poles, also known as glide poles, were installed to provide a link for gliding mammals across 50–75-m-wide canopy gaps, over open pasture or over roads. We used hair-traps over periods of 10–42 months to determine whether squirrel gliders (Petaurus norfolcensis) used the poles. Squirrel glider hair was detected on at least one pole during 69–100% of sampling sess

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Wu, Xiangcheng, Pengyao Yu, Guangzhao Li, and Fengkun Li. "Numerical Study of the Effect of Wing Position on the Dynamic Motion Characteristics of an Underwater Glider." Polish Maritime Research 28, no. 2 (2021): 4–17. http://dx.doi.org/10.2478/pomr-2021-0016.

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Abstract Underwater gliders are winged, autonomous underwater vehicles that are broadly applied in physical and biological oceanography. The position of the wing has an important effect on the movement performance of the underwater glider. In this paper, the dynamic motion of a series of underwater glider models with different longitudinal wing positions are simulated, which provides guidance for the design of underwater gliders. The results show that when the net buoyancy is constant, the wing position affects the gliding angle, but does not affect the relationship between the gliding angle a

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11

Taylor, Brendan D., and Ross L. Goldingay. "Squirrel gliders use roadside glide poles to cross a road gap." Australian Mammalogy 35, no. 1 (2013): 119. http://dx.doi.org/10.1071/am12013.

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Tall wooden poles placed along roadsides may enable road crossing by gliding mammals. We investigated the use of 12-m-high roadside glide poles at one location in Brisbane. Camera traps on roadside poles detected squirrel gliders (Petaurus norfolcensis) on one or both poles on 60 of 310 operational nights including at least 16 confirmed crossings during 125 nights when both roadside cameras operated concurrently. This provides definitive evidence that squirrel gliders will readily use tall wooden poles to make glide-crossings of two-lane roads. This is consistent with other investigations of g

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Goldingay, Ross L., Brendan D. Taylor, and Jonathan L. Parkyn. "Use of tall wooden poles by four species of gliding mammal provides further proof of concept for habitat restoration." Australian Mammalogy 41, no. 2 (2019): 255. http://dx.doi.org/10.1071/am18008.

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Tall wooden poles (glide poles) and rope canopy-bridges are frequently installed along new highways in Australia to maintain population connectivity for gliding mammals. Knowledge of the use of these structures is rudimentary. We monitored two pairs of glide poles and a canopy-bridge over three years at Port Macquarie, New South Wales. The sugar glider (Petaurus breviceps) and the squirrel glider (Petaurus norfolcensis) were collectively detected on 12–18% of nights on the pole pairs compared with 1% on the rope-bridge. The feathertail glider (Acrobates frontalis) was detected on 3% of nights

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Sun, Weicheng, Wenchuan Zang, Chao Liu, Tingting Guo, Yunli Nie, and Dalei Song. "Motion Pattern Optimization and Energy Analysis for Underwater Glider Based on the Multi-Objective Artificial Bee Colony Method." Journal of Marine Science and Engineering 9, no. 3 (2021): 327. http://dx.doi.org/10.3390/jmse9030327.

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Underwater gliders are prevailing in oceanic observation nowadays for their flexible deployment and low cost. However, the limited onboard energy constrains their application, hence the motion pattern optimization and energy analysis are the key to maximizing the range of the glider while maintaining the acceptable navigation preciseness of the glider. In this work, a Multi-Objective Artificial Bee Colony (MOABC) algorithm is used to solve the constrained hybrid non-convex multi-objective optimization problem about range and accuracy of gliders in combination with specific glider dynamics mode

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Bahlman, Joseph W., Sharon M. Swartz, Daniel K. Riskin, and Kenneth S. Breuer. "Glide performance and aerodynamics of non-equilibrium glides in northern flying squirrels ( Glaucomys sabrinus )." Journal of The Royal Society Interface 10, no. 80 (2013): 20120794. http://dx.doi.org/10.1098/rsif.2012.0794.

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Gliding is an efficient form of travel found in every major group of terrestrial vertebrates. Gliding is often modelled in equilibrium, where aerodynamic forces exactly balance body weight resulting in constant velocity. Although the equilibrium model is relevant for long-distance gliding, such as soaring by birds, it may not be realistic for shorter distances between trees. To understand the aerodynamics of inter-tree gliding, we used direct observation and mathematical modelling. We used videography (60–125 fps) to track and reconstruct the three-dimensional trajectories of northern flying s

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15

Song, Bao Wei, Wen Long Tian, and Zhao Yong Mao. "Dynamic Modeling and Motion Simulation of a Movable-Winged Underwater Glider." Advanced Materials Research 490-495 (March 2012): 1326–31. http://dx.doi.org/10.4028/www.scientific.net/amr.490-495.1326.

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Underwater gliders are a class of Autonomous Underwater Vehicles (AUVs) that offer many advantages over traditional AUVs. Previous research has mainly focused on underwater gliders with fixed wings. This paper studied a novel underwater glider whose wings can pitch independently about its installed shaft, called Movable-Winged Underwater Glider (MWUG). A 6-DOF model of dynamics for MWUG was developed based on Newton’s law and Euler’s equation, gravity, buoyancy, added mass forces and hydrodynamic forces considered. Longitudinal motion simulations were conducted to clarify the motion characteri

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Tian, Xin, Lianhong Zhang, and Hongwei Zhang. "Research on Sailing Efficiency of Hybrid-Driven Underwater Glider at Zero Angle of Attack." Journal of Marine Science and Engineering 10, no. 1 (2021): 21. http://dx.doi.org/10.3390/jmse10010021.

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The sailing efficiency of an underwater glider, an important type of marine environment detection and data collection equipment, directly affects its range and duration. The zero-angle-of-attack gliding can be achieved by adjusting the wing installation angle to minimize the drag and improve the sailing efficiency, and thus further improving performance of the glider. This paper first presents the dynamic characteristics of a hybrid-driven underwater glider with a certain wing installation angle when it is sailing at zero angle of attack in buoyancy-driven mode and hybrid-driven mode. In buoya

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Byrnes, Greg, Norman T. L. Lim, and Andrew J. Spence. "Take-off and landing kinetics of a free-ranging gliding mammal, the Malayan colugo ( Galeopterus variegatus )." Proceedings of the Royal Society B: Biological Sciences 275, no. 1638 (2008): 1007–13. http://dx.doi.org/10.1098/rspb.2007.1684.

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Arboreal animals negotiate a highly three-dimensional world that is discontinuous on many spatial scales. As the scale of substrate discontinuity increases, many arboreal animals rely on leaping or gliding locomotion between distant supports. In order to successfully move through their habitat, gliding animals must actively modulate both propulsive and aerodynamic forces. Here we examined the take-off and landing kinetics of a free-ranging gliding mammal, the Malayan colugo ( Galeopterus variegatus ) using a custom-designed three-dimensional accelerometry system. We found that colugos increase

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Pérez-Calero Yzquierdo, Antonio, Brian Paul Bockelman, Diego Davila Foyo, et al. "Exploring GlideinWMS and HTCondor scalability frontiers for an expanding CMS Global Pool." EPJ Web of Conferences 214 (2019): 03002. http://dx.doi.org/10.1051/epjconf/201921403002.

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The CMS Submission Infrastructure Global Pool, built on Glidein-WMS andHTCondor, is a worldwide distributed dynamic pool responsible for the allocation of resources for all CMS computing workloads. Matching the continuously increasing demand for computing resources by CMS requires the anticipated assessment of its scalability limitations. In addition, the Global Plmust be able to expand in a more heterogeneous environment, in terms of resource provisioning (combining Grid, HPC and Cloud) and workload submissi.A dedicated testbed has been set up to simulate such conditions with the purpose of f

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Morio, Hanako, Taishi Kasai, and Makoto Miyata. "Gliding Direction of Mycoplasma mobile." Journal of Bacteriology 198, no. 2 (2015): 283–90. http://dx.doi.org/10.1128/jb.00499-15.

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ABSTRACTMycoplasma mobileglides in the direction of its cell pole by a unique mechanism in which hundreds of legs, each protruding from its own gliding unit, catch, pull, and release sialylated oligosaccharides fixed on a solid surface. In this study, we found that 77% of cells glided to the left with a change in direction of 8.4° ± 17.6° μm−1displacement. The cell body did not roll around the cell axis, and elongated, thinner cells also glided while tracing a curved trajectory to the left. Under viscous conditions, the range of deviation of the gliding direction decreased. In the presence of

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Jia, Li Juan, Zhan Feng Qi, Sen Zhang, et al. "Dynamic Analysis of the Acoustic Velocity Profile Observation Underwater Glider." Applied Mechanics and Materials 475-476 (December 2013): 50–54. http://dx.doi.org/10.4028/www.scientific.net/amm.475-476.50.

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Underwater gliders carried acoustic velocity meters can realize ocean profile observations of the acoustic velocity for long duration and large scale. This paper mainly studies the kinematics and hydrodynamics of the Slocum underwater glider carrying a acoustic velocity meter MINOSX with length 565mm and diameter 76mm. Thus, theory reference for optimal design parameters of the underwater glider is proposed. By establishing the kinematic equations and giving some related parameters, variations with time of the steady-state gliding velocity, pitch angle, gliding path and attack angle are simula

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Li, Jinglu, Peng Wang, Xu Chen, and Huachao Dong. "Shape Optimization of Blended-Wing-Body Underwater Gliders Based on Free-Form Deformation." Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 38, no. 3 (2020): 459–64. http://dx.doi.org/10.1051/jnwpu/20203830459.

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Currently developed underwater gliders can be roughly divided into the two types:traditional configuration and unconventional configuration. As a type of underwater gliders with unconventional configuration, a blended-wing-body (BWB) underwater glider has better fluid dynamic performances because of its unique shape. However, it is difficult to design the shape of the BWB underwater glider that has excellent hydrodynamic performances. Therefore, it is of great significance to optimize its shape, which this paper carries out by using the free-form deformation (FFD). The complete and automatic s

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Field, Laurence, and Iain Steers. "The Instant Glidein; A generic approach for the late binding of jobs to various resource types." Journal of Physics: Conference Series 898 (October 2017): 092009. http://dx.doi.org/10.1088/1742-6596/898/9/092009.

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Romadhon, Doni, Arfie Armelia Erissonia, and Reo Yudhono. "RANCANG BANGUN HAND LAUNCH GLIDER “PELANGI 50” MENJADI GLIDER BERMOTOR." Teknika STTKD: Jurnal Teknik, Elektronik, Engine 10, no. 1 (2024): 146–51. http://dx.doi.org/10.56521/teknika.v10i1.1211.

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Aeromodelling is the activity of using miniature aircraft models for recreational, educational and sporting purposes such as gliders. Gliders were the subject of important innovation, especially in the context of small hand launch gliders with low launch ratios, which affected their coverage capabilities. Gliders generally have wide wings and a high glide rate, while balsa gliders help humans understand aerodynamics economically. In glider manufacturing, the connection between the fuselage and the wings must be strong to handle the proper load. Therefore, a design is required that allows to ac

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Clark, Jaden, Christopher Clark, and Timothy E. Higham. "Tail Control Enhances Gliding in Arboreal Lizards: An Integrative Study Using a 3D Geometric Model and Numerical Simulation." Integrative and Comparative Biology 61, no. 2 (2021): 579–88. http://dx.doi.org/10.1093/icb/icab073.

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Abstract The ability to glide through an arboreal habitat has been acquired by several mammals, amphibians, snakes, lizards, and even invertebrates. Lizards of the genus Draco possess specialized morphological structures for gliding, including a patagium, throat lappets, and modified hindlimbs. Despite being among the most specialized reptilian gliders, it is currently unknown how Draco is able to maneuver effectively during flight. Here, we present a new computational method for characterizing the role of tail control on Draco glide distance and stability. We first modeled Draco flight dynami

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Chen, Yuqing. "Research on Aerodynamic Characteristics of Gliders with Different Wing Shapes." Highlights in Science, Engineering and Technology 93 (May 8, 2024): 95–102. http://dx.doi.org/10.54097/e7h7td21.

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In this research, the effects of different wing shapes on the lift-to-drag ratio and aerodynamic characteristics of gliders were analyzed. Traditional research has many limitations, such as experimental conditions - air flow speed and airflow stability, which may affect the stability of research results. Therefore, in this research, repeated experiments were used to eliminate chance, and numerical simulation was combined with computer simulation of the lift-to-drag ratio of gliders under different aspect ratios to verify the experimental results. The results show that with the increase in aspe

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Sfiligoi, I., J. M. Dost, M. Zvada, et al. "The benefits and challenges of sharing glidein factory operations across nine time zones between OSG and CMS." Journal of Physics: Conference Series 396, no. 3 (2012): 032103. http://dx.doi.org/10.1088/1742-6596/396/3/032103.

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Cauchy, Pierre. "Marine soundscape monitoring from underwater autonomous vehicles—Passive acoustic monitoring gliders." Journal of the Acoustical Society of America 155, no. 3_Supplement (2024): A184. http://dx.doi.org/10.1121/10.0027249.

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Ocean gliders are buoyancy-driven autonomous underwater platforms, able to collect oceanographic measurements along vertical profiles during multi-months missions, covering thousands of kilometers. They glide quietly through the water column without propulsion noise and are therefore extremely suitable for Passive Acoustic Monitoring (PAM) of the marine environment. From PAM glider data in the Mediterranean Sea and the Southern Ocean, we illustrate the current and potential uses of PAM gliders for the study of physical oceanography, biology, ecology and for regulatory purposes. We evaluate lim

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Kasai, Taishi, Tasuku Hamaguchi, and Makoto Miyata. "Gliding Motility of Mycoplasma mobile on Uniform Oligosaccharides." Journal of Bacteriology 197, no. 18 (2015): 2952–57. http://dx.doi.org/10.1128/jb.00335-15.

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ABSTRACTThe binding and gliding ofMycoplasma mobileon a plastic plate covered by 53 uniform oligosaccharides were analyzed. Mycoplasmas bound to and glided on only 21 of the fixed sialylated oligosaccharides (SOs), showing that sialic acid is essential as the binding target. The affinities were mostly consistent with our previous results on the inhibitory effects of free SOs and suggested thatM. mobilerecognizes SOs from the nonreducing end with four continuous sites as follows. (i and ii) A sialic acid at the nonreducing end is tightly recognized by tandemly connected two sites. (iii) The thi

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Khandelwal, Pranav C., and Tyson L. Hedrick. "How biomechanics, path planning and sensing enable gliding flight in a natural environment." Proceedings of the Royal Society B: Biological Sciences 287, no. 1921 (2020): 20192888. http://dx.doi.org/10.1098/rspb.2019.2888.

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Gliding animals traverse cluttered aerial environments when performing ecologically relevant behaviours. However, it is unknown how gliders execute collision-free flight over varying distances to reach their intended target. We quantified complete glide trajectories amid obstacles in a naturally behaving population of gliding lizards inhabiting a rainforest reserve. In this cluttered habitat, the lizards used glide paths with fewer obstacles than alternatives of similar distance. Their takeoff direction oriented them away from obstacles in their path and they subsequently made mid-air turns wi

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bin Ibrahim, Mohamad Faizul, Ovinis Mark, and Kamarudin bin Shehabuddeen. "An Underwater Glider for Subsea Intervention: A Technical Feasibility Study." Applied Mechanics and Materials 393 (September 2013): 561–66. http://dx.doi.org/10.4028/www.scientific.net/amm.393.561.

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An underwater glider is a type of autonomous underwater vehicle that moves based on small changes in its buoyancy, maneuvering using it wings as it glides through the water. These gliders, currently used in oceanographic sampling, may potentially be used to deliver payloads for subsea intervention at a lower net transport economy (NTE). Net transport economy, is a measure of the cost of transport in terms of the energy consumed per meter traveled, for each kilogram of loaded mass in air or net buoyancy underwater. The current method of payload delivery is either by using customized support ves

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Jin, Yanchen, and Yiqi Yao. "Research on the Relationship between the Glide and Aspect Ratio." Highlights in Science, Engineering and Technology 128 (February 25, 2025): 124–32. https://doi.org/10.54097/handtp75.

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Global warming along with other environmental issues like El Niño has radically reconfigured the biosphere mainly because of the increasing carbon footprint human beings have made up. The whole aviation industry shares the responsibility as manufacturers compete on the innovation of better aerodynamic shape of airplanes, application of a new type of sustainable fuel for decarbonization, and development of highly fuel-efficient turbofan engines. The objective of this study is to analyse glider airfoils with the now worldwide application, identify parameters affecting the glide ratio as well as

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Du, Ran, Jingyan Shi, Xiaowei Jiang, and Chaoqi Guo. "A web workbench system for the Slurm cluster at IHEP." EPJ Web of Conferences 295 (2024): 01007. http://dx.doi.org/10.1051/epjconf/202429501007.

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Slurm REST APIs are released since version 20.02. With those REST APIs one can interact with slurmctld and slurmdbd daemons in a REST- ful way. As a result, job submission and cluster status query can be achieved with a web system. To take advantage of Slurm REST APIs, a web workbench system is developed for the Slurm cluster at IHEP. The workbench system con- sists with four subsystems including dashboard, tomato, jasmine and cosmos. The dashboard subsystem is used to display cluster status including nodes and jobs. The tomato subsystem is developed to submit special HTCondor glidein jobs in

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Chen, Chen-Wei, Jia-Lin Lu, Xu-Peng Chen, and Dong-Jie Wang. "A Study on the Propulsion Performance of Hybrid-Driven Underwater Glider Equipped with a Kappel Tip Rake Propeller." Applied Sciences 14, no. 16 (2024): 7245. http://dx.doi.org/10.3390/app14167245.

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In order to solve the problem of the lack of maneuverability of the conventional underwater glider, this paper proposes a hybrid-driven underwater glider equipped with a Kappel tip rake propeller, analyzes the propulsion performance of different types of Kappel tip rake propellers in the wake field of the hybrid-driven underwater glider, optimizes the overall propulsion performance of the hybrid-driven underwater glider, and realizes self-propulsion and gliding with high efficiency and low energy consumption. In the research process, the Schnerr–Sauer cavitation model and the cavitation simula

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Johnson-Murray, JL. "The Comparative Myology of the Gliding Membranes of Acrobates, Petauroides and Petaurus Contrasted With the Cutaneous Myology of Hemibelideus and Pseudocheirus (Marsupialia, Phalangeridae) and With Selected Gliding Rodentia (Sciuridae and Anamoluridae)." Australian Journal of Zoology 35, no. 2 (1987): 101. http://dx.doi.org/10.1071/zo9870101.

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The comparative myology of the gliding membranes of the marsupial genera Acrobates, Petauroides, Petaurus and Hemibelideus is compared with that of the skin musculature of the non-glider Pseudocheirus. An outline of the system used in the naming of the parts of the cutaneus maximus is included. The gliding membranes are compared, functionally, with those of the rodent Petauristinae; the positions of the muscles within the phalanger membranes account for the gliders' ability to execute changes in camber, thus lift and angle of attack. An accessory cartilage associated with the elbow of Petauroi

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Clarke, Sandra. "Noozornyooz?: The Complex Construction of Canadian Identity." Canadian Journal of Linguistics/Revue canadienne de linguistique 51, no. 2-3 (2006): 225–46. http://dx.doi.org/10.1017/s0008413100004084.

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AbstractWe examine the diffusion of a phonological feature, namely the deletion of palatal glides in words such asnews, tune, duke, andstudent. Within Canada, the conservative glided and innovative glideless pronunciations are no longer viewed as carrying, respectively, British versus American affiliation. One observes a steep generational decline in glide usage, with older, and especially upper-middle-class, females, resisting this change. This contrasts with broadcast media, where the overall glide usage rate is high: national media adopt the glided variant to a greater degree than their loc

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Muhammad Yasar, Javaid, Ovinis Mark, T. Nagarajan, Syed Saad Azhar Ali, and Ullah Barkat. "Study on Wing Aspect Ratio on the Performance of a Gliding Robotic Fish." Applied Mechanics and Materials 786 (August 2015): 248–53. http://dx.doi.org/10.4028/www.scientific.net/amm.786.248.

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In this paper, the performance of a gliding robotic fish with different wing aspect ratio is investigated. The gliding robotic fish, developed by Michigan State University, has the energy efficient locomotion of an underwater glider and high maneuverability of a robotic fish. ANSYS Computational Fluid Dynamics turbulence model was used to determine lift and drag coefficients for various wing aspect ratios at different angle of attack. Subsequently, the corresponding glide angle and velocity were determined analytically based on its dynamic model. The simulation results compare well with publis

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Burtner, Abigail E., David M. Grossnickle, Sharlene E. Santana, and Chris J. Law. "Gliding toward an understanding of the origin of flight in bats." PeerJ 12 (July 25, 2024): e17824. http://dx.doi.org/10.7717/peerj.17824.

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Bats are the only mammals capable of powered flight and have correspondingly specialized body plans, particularly in their limb morphology. The origin of bat flight is still not fully understood due to an uninformative fossil record but, from the perspective of a functional transition, it is widely hypothesized that bats evolved from gliding ancestors. Here, we test predictions of the gliding-to-flying hypothesis of the origin of bat flight by using phylogenetic comparative methods to model the evolution of forelimb and hindlimb traits on a dataset spanning four extinct bats and 231 extant mam

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Wang, Biao, Yishan Chen, Yige Wu, et al. "An Underwater Glider with Muscle—Actuated Buoyancy Control and Caudal Fin Turning." Machines 10, no. 5 (2022): 381. http://dx.doi.org/10.3390/machines10050381.

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Underwater robotic gliders exploit gravity and buoyancy for long-distance cruising with ultra-low energy consumptions, making them ideal for open ocean surveying operations. However, the gliding-based motion generation principle also prevents their maneuverability, limiting their use in the short distances that are usually encountered in harbors or coastal scenarios. In this work, an innovative underwater glider robot is developed, enabling maneuverability through the introduction of an efficiently actuated caudal fin with bidirectional turning capabilities. In addition, modular actuator units

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Santer, Roger D., F. Claire Rind, Richard Stafford, and Peter J. Simmons. "Role of an Identified Looming-Sensitive Neuron in Triggering a Flying Locust's Escape." Journal of Neurophysiology 95, no. 6 (2006): 3391–400. http://dx.doi.org/10.1152/jn.00024.2006.

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Flying locusts perform a characteristic gliding dive in response to predator-sized stimuli looming from one side. These visual looming stimuli trigger trains of spikes in the descending contralateral movement detector (DCMD) neuron that increase in frequency as the stimulus gets nearer. Here we provide evidence that high-frequency (>150 Hz) DCMD spikes are involved in triggering the glide: the DCMD is the only excitatory input to a key gliding motor neuron during a loom; DCMD-mediated EPSPs only summate significantly in this motor neuron when they occur at >150 Hz; when a looming stimulu

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Su, Dong Hai, Yu Zhang, Ying Shi, and Kuo Yang. "Research on Driving Mechanism and Movement Principle of Underwater Glider." Advanced Materials Research 433-440 (January 2012): 6825–31. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.6825.

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In this paper, firstly, the organization structure and working principle of gliders are introduced. Secondly, the buoyancy driven principle of gliders as well as the composition of buoyancy drive system is given. Thirdly, the stationary movement state is analyzed and the law of motion about the steady gliding as well as steady spiral rotation in vertical space are given and the principles, control method of vertical steady glide as well as spiral steady rotation in space are also given, which provides an important theoretical basis with the movement control of underwater gliders. Finally, the

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Lindhe-Norberg, U. M., A. P. Brooke, and W. J. Trewhella. "Soaring and non-soaring bats of the family pteropodidae (flying foxes, Pteropus spp.): wing morphology and flight performance." Journal of Experimental Biology 203, no. 3 (2000): 651–64. http://dx.doi.org/10.1242/jeb.203.3.651.

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On oceanic islands, some large diurnal megachiropteran bat species (flying foxes; Pteropus spp.) frequently use thermal or slope soaring during foraging flights to save energy. We compared the flight morphology and gliding/soaring performance of soaring versus non-soaring Pteropus species, one pair on American Samoa and one pair on the Comoro Islands, and two other soaring/flap-gliding species and one non-soaring species. We predicted that the soaring species should have a lower body mass, longer wings and, hence, lower wing loadings than those species that use mainly flapping flight. This wou

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Keskin, Göksel, Seyhun Durmus, Muharrem Karakaya, and Melih Cemal Kushan. "Designing and producing a bird-inspired unmanned sailplane." Aircraft Engineering and Aerospace Technology 93, no. 6 (2021): 1052–59. http://dx.doi.org/10.1108/aeat-02-2021-0054.

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Purpose Increasing endurance was a very appropriate subject for the biomimetic approach. The study aims to design and manufacture a long-lasting mini unmanned aerial vehicle (UAV) using active gliding and soaring. Design/methodology/approach The endurance of mini UAVs is limited by battery or fuel capacity, and it is not always possible to increase these energy sources due to the fuselage size. Long endurance aircraft are required in various areas such as silent environment and traffic monitoring or search and rescue. Literature research on bird flight performance conducted to determine design

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Goldingay, RL. "Time Budget and Related Aspects of the Foraging Behavior of the Yellow-Bellied Glider, Petaurus-Australis." Wildlife Research 16, no. 1 (1989): 105. http://dx.doi.org/10.1071/wr9890105.

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The time budget of the Yellow-bellied Glider was determined at a site in southern New South Wales. Gliders spent most of the night outside their dens (96% in summer, 73% in winter) and devoted an average of 81% of this time to feeding but only 2% to inactivity. When feeding time is coupled with that for other behaviours essential for foraging (i.e. gliding and climbing), 90% of the time outside the den is accounted for. This is among the highest values yet found for a mammal. The amount of time gliders spent in trees was significantly greater when feeding on exudates (on average >48 min per

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Goldingay, RL, and RP Kavanagh. "Foraging behaviour and habitat use of the feathertail glider (Acrobates pygmaeus) at Waratah Creek, New South Wales." Wildlife Research 22, no. 4 (1995): 457. http://dx.doi.org/10.1071/wr9950457.

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Observations were made of the foraging behaviour of the feathertail glider (Acrobates pygmaeus) at Waratah Creek in south-eastern New South Wales (NSW). Gliders were observed on 164 occasions, including 42 observations of feeding, 41 observations of moving along a substrate and 68 observations of gliding to a tree, an understorey plant or to the ground. On the remaining occasions, gliders were lost from view before any information was recorded. Most (91%) feeding observations occurred in live eucalypts. When feeding in eucalypts, 61% of observations were of gliders searching under loose sheddi

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Sun, Yiheng. "Exploring Aerodynamics: The Impact of Aspect Ratio on Paper Airplane Flight Dynamics." Highlights in Science, Engineering and Technology 119 (December 11, 2024): 885–91. https://doi.org/10.54097/54mphq42.

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Aspect Ratio significantly influences the aerodynamic performance of aircraft, dictating crucial factors such as lift and glide efficiency. This paper investigates the impact of varying Aspect Ratios on the Gliding Angle of paper airplanes, serving as analogs for larger aircraft. Different models of paper airplanes, each with unique Aspect Ratios, are constructed and tested under controlled conditions to measure their aerodynamic responses. The experiment employs video tracking and statistical analysis to precisely gauge the glide angles and correlate these with Aspect Ratios. Results indicate

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Ma, Pengfei. "Experimental Study and Analysis of Aerodynamic Characteristics of Gliders with Different Wing Geometries." Highlights in Science, Engineering and Technology 93 (May 8, 2024): 76–81. http://dx.doi.org/10.54097/3mv6ge22.

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At present, airplanes are widely used in people's daily lives, and research on this means of transportation is of great importance. Currently, academic research still lacks the influence of different aircraft wing shapes and areas on aircraft flight conditions. This article analyzes the basic principles of glider flight and explores the aerodynamic principles of gliders through paper plane simulation. Firstly, this paper introduces the development history of gliders. Secondly, the mechanical analysis of the aircraft is carried out. The factors that affect the flight performance of the aircraft

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Kennedy, J. A., and J. J. Dias. "Effect of triggering and entrapment on tendon gliding properties following digital flexor tendon laceration: in vitro study on turkey tendon." Journal of Hand Surgery (European Volume) 39, no. 7 (2013): 708–13. http://dx.doi.org/10.1177/1753193413490898.

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The optimal management of partial flexor tendon laceration is controversial and remains a clinical challenge. Abnormal tendon gliding (triggering and entrapment) was assessed at the A2 pulley in 40 turkey tendons in three groups: intact, partially divided (palmar or lateral), and trimmed. Testing was of gliding resistance and friction coefficient at 30° and 70° of flexion, loaded with 2 and 4 N. We observed for triggering and entrapment. The changes in gliding properties were compared and analysed using Wilcoxon matched pair testing. A significant difference was found in the change in gliding

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Sfiligoi, Igor, Frank Würthwein, Jeff Dost, Brian Lin, and David Schultz. "Demand-driven provisioning of Kubernetes-like resources in OSG." EPJ Web of Conferences 295 (2024): 07014. http://dx.doi.org/10.1051/epjconf/202429507014.

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The OSG-operated Open Science Pool is an HTCondor-based virtual cluster that aggregates resources from compute clusters provided by several organizations. Most of the resources are not owned by OSG, so demand-based dynamic provisioning is important for maximizing usage without incurring excessive waste. OSG has long relied on GlideinWMS for most of its resource provisioning needs but is limited to resources that provide a Grid-compliant Compute Entrypoint. To work around this limitation, the OSG Software Team has developed a glidein container that resource providers could use to directly contr

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Stryczniewicz, Kamila, and Przemysław Drężek. "CFD Approach to Modelling Hydrodynamic Characteristics of Underwater Glider." Transactions on Aerospace Research 2019, no. 4 (2019): 32–45. http://dx.doi.org/10.2478/tar-2019-0021.

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Abstract Autonomous underwater gliders are buoyancy propelled vehicles. Their way of propulsion relies upon changing their buoyancy with internal pumping systems enabling them up and down motions, and their forward gliding motions are generated by hydrodynamic lift forces exerted on a pair of wings attached to a glider hull. In this study lift and drag characteristics of a glider were performed using Computational Fluid Dynamics (CFD) approach and results were compared with the literature. Flow behavior, lift and drag forces distribution at different angles of attack were studied for Reynolds

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Mohd Ali, Zurriati, Jasmine Demi Danny Jabing, and Zulhilmy Sahwee. "Fabrication of UiTM’s Energy Glider." JOURNAL OF APPLIED ENGINEERING DESIGN AND SIMULATION 3, no. 1 (2023): 1–10. http://dx.doi.org/10.24191/jaeds.v3i1.56.

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Glider is a fixed-wing aircraft which does not depend on the engine. A glider can fly for an extended period depending on the design and area of the lifting surface. Just like any other aircrafts, the design of wings is crucial to produce lift force to keep aircraft in the air. Gliders have long wings and is designed to be lightweight which allows it to have a high lift-to-drag ratio (L/D) to glide at a long distance. The maximum lift-to-drag ratio, 〖(L/D〗_max) can indicate how far the glider will glide as it is one of the most important performance parameters. This project aims to design, bui

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