Results 61 to 70 of about 310,977 (203)

Evaluating Patterns in Fishing Gear Removal From Incidentally Captured Leatherback and Loggerhead Sea Turtles in the US Atlantic Pelagic Longline Fishery

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 4, April 2026.
ABSTRACT Incidental capture of imperilled sea turtles by longline fisheries is a conservation concern; thus, solutions to reduce the severity of resulting injuries and mortality are a priority. Interaction characteristics, handling methods and the amount and location of gear remaining on bycaught turtles affect the degree of injury and influence ...
Lesley W. Stokes, Mitchell Rider, Brian Stacy, Sascha Cushner, Dennis Klemm, Lyndsey Howell   +5 more
wiley   +1 more source

Bifurcation analysis of a coupled nose landing gear-fuselage system

, 2012
Under certain conditions during take-off and landing, pilots may sometimes experience quite violent vibrations in the cockpit. Since it is located right above the nose landing gear { which is known to experience self-excited vibrations on the runway { an
Sharma, Sanjiv, Lowenberg, Mark, Neild, Simon, Sanjiv Sharma, Bernd Krauskopf, Mark Lowenberg, Terkovics, Nándor, Nándor Terkovics, Simon Neild, Krauskopf, Bernd   +9 more
core   +1 more source

Analysis of Landing Gear Shimmy Characteristics Considering Transmission Clearance

Nanjing Hangkong Hangtian Daxue Xuebao
To investigate the vibration characteristics of a landing gear gear-driven nose wheel steering system under transmission clearance conditions， this paper first conducts a simplified theoretical analysis to reasonably design anti-sway damping ...
WANG RUI, CAI JUNHUI, CHEN XIAO, PAN HAOYANG, LI DARANG, BAO XUDAN, ZHANG ZHENHUA   +6 more
doaj   +1 more source

Uncertainty Quantification in Planning Aircraft Ground Movement Operations With Towbarless Robotic Tractors

International Journal of Robust and Nonlinear Control, Volume 36, Issue 5, Page 2542-2556, 25 March 2026.
ABSTRACT This article addresses the problem of quantifying the uncertainty in planning aircraft ground movement operations using towbarless robotic tractors taking into account the inherent uncertainties of the problem, specifically, the uncertainties in the weight of the aircraft and in the rolling resistance of the wheels of the main landing gear ...
Almudena Buelta, Alberto Olivares, Ernesto Staffetti   +2 more
wiley   +1 more source

Analysis on dynamic characteristics of multi-strut aircraft under main landing gear coordinated steering

Xibei Gongye Daxue Xuebao
Due to their large fuselage and complex landing gear configuration, multi-strut aircraft faces significant challenges in steering control and stability during ground maneuvers.
FENG Jun, TAO Xiaojiang, GUI Xiwen, NIE Hong, ZHANG Ming, SHI Xiazheng   +5 more
doaj   +1 more source

A comprehensive embryonic staging series of the turtle Trachemys scripta

Developmental Dynamics, Volume 255, Issue 3, Page 260-320, March 2026.
Abstract Background Turtles hold a unique place in vertebrate evolutionary history, making them critical assets in embryology research. Yet, they remain understudied as potential model organisms in the field. Here, to support experimental manipulations with turtle embryos, we have created a complete normal table of development for comprehensive ...
Christina M. Noravian, Perla G. Rand, Amira Mahomed, Annie Rickard, Oscar D. Juvera, Maria Elena de Bellard, Max Ezin   +6 more
wiley   +1 more source

Design of the nose landing gear for Zlin 40 aircraft

, 2021
This master’ thesis deals with the design of the front landing gear for Zlín 40 aircrafts. The main emphasis in the research part of the work is placed on the selection of a new nose landing gear and the subsequent design of the structure.
Bednář, Peter
core  

Effects of design parameters on the centering performance of nose landing gear for a certain aircraft

Advances in Mechanical Engineering
The centering mechanism of the nose landing gear is crucial for aircraft operational safety, particularly during the takeoff and landing processes. To address the failure of the return function observed in a certain aircraft, this paper establishes a ...
Shuai Zhao, Ye Zhao
doaj   +1 more source

Friction Shock Absorbers and Reverse Thrust for Fast Multirotor Landing on High‐Speed Vehicles

Journal of Field Robotics, Volume 43, Issue 2, Page 1068-1090, March 2026.
ABSTRACT Typical landing gears of small uninhabited aerial vehicles (UAV) limit their capability to land on vehicles moving at more than 20–50 km/h due to high drag forces, high pitch angles and potentially high relative horizontal velocities. To enable landing at higher speeds, a combination of lightweight friction shock absorbers and reverse thrust ...
Isaac Tunney, John Bass, Alexis Lussier Desbiens   +2 more
wiley   +1 more source

Lack of capture‐induced mortality of neonates associated with variation in handling protocols

Wildlife Society Bulletin, Volume 50, Issue 1, March 2026.
We found that handling metrics (e.g., handling time, number of collectors, and age at capture) had limited or no influence on the survival of neonatal mule deer, desert bighorn sheep, and Rocky Mountain bighorn sheep within the first few days of life. Furthermore, we found that handled mule deer and Rocky Mountain bighorn neonates were recruited at a ...
Marcus E. Blum, Tayler N. LaSharr, Kelley M. Stewart, John T. Hogg, Brittany L. Wagler, Rachel A. Smiley, Katey S. Huggler, Rhiannon P. Jakopak, Mitchell J. Brunet, Rebecca L. Levine, Rebekah T. Rafferty, Samantha P. H. Dwinnell, Benjamin M. Regan, Mike Cox, Brian F. Wakeling, Doug Brimeyer, Gary L. Fralick, Brandon Scurlock, Rusty C. Kaiser, Mark Thonhoff, Patrick W. Burke, Alyson B. Courtemanch, Daryl Lutz, Timothy J. Robinson, Kevin L. Monteith   +24 more
wiley   +1 more source