Results 141 to 150 of about 208,400 (295)
Influence of friction forces on the motion of VTOL aircraft during landing operations on ships at sea [PDF]
Equations describing the friction forces generated during landing operations on ships at sea were formulated. These forces depend on the platform reaction and the coefficient of friction.
Chin, D. O., Howard, J. C.
core +1 more source
Magnetic Droplet Manipulation on Open Surfaces
Advanced Materials Technologies, EarlyView.Recent advances in the manipulation of magnetic droplets demonstrate various manipulations on open surfaces, including transport, splitting, merging, and force‐controlled motion, enabled by magnetic particles and external fields. ABSTRACT Manipulation of liquids on a smaller scale enables applications in various fields, particularly diagnostics and ...
Robab Jahangir, Vahid Nasirimarekani
wiley +1 more source
FULL-SCALE RETAINING WALL TESTS WITH EVALUATION OF WORKING ANGLE OF INTERNAL FRICTION
Doboku Gakkai Ronbunshuu C, 2010 高さ6mの擁壁土圧実験により剛な壁体を有する擁壁土圧の挙動を調べた．裏込め盛土材料には自然含水状態の砂および粘性土を用い，盛土施工過程及び壁のゆるみ変位過程について擁壁土圧を測定した．土圧挙動をクーロンの土くさび平衡理論にもとづき，実測で得られた土圧合力及び傾きから土中のすべり面に働いている起動内部摩擦角を調べ，設計土圧としての検討を行った．砂においては盛土施工中の土圧，盛土完了時の土圧，主働時土圧，残留土圧についてその実態を示した．粘性土の土圧には摩擦材料としての振る舞いや土圧回復現象が観測された．さらに起動すべり面角を評価する事により土圧の影響範囲を推定できる事を示した．擁壁設計土圧の合理化の立場からは，盛土完了時点の実際に働く起動内部摩擦角を評価してそれを用いる事の重要性を提起した．
openaire +2 more sources
Advanced Optical Materials, EarlyView.A dual‐domain PSLC architecture enables direct comparison of alignment‐dependent laser damage within a single device. Crack‐like and seal‐like morphologies emerge under different damage conditions, and their evolution is interpreted through quantitative image analysis and heat‐driven simulations.
Dengcheng Chen +4 more
wiley +1 more source
From Rigid to Soft Robotic Approaches for Neuroendoscopy
Advanced Robotics Research, EarlyView.Robotic assistance has had minimal impact on deep intraventricular surgeries, where small‐scale, precision, and reduced invasiveness can contribute to improved patient outcomes. Emerging technologies in rigid, soft, and hybrid robotics are reviewed to identify the most promising mechanisms for deep brain navigation in addition to an attempt to identify
Kieran Gilday +3 more
wiley +1 more source
Advanced Robotics Research, EarlyView.A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley +1 more source
Stable Imitation of Multigait and Bipedal Motions for Quadrupedal Robots Over Uneven Terrains
Advanced Robotics Research, EarlyView.How are quadrupedal robots empowered to execute complex navigation tasks, including multigait and bipedal motions? Challenges in stability and real‐world adaptation persist, especially with uneven terrains and disturbances. This article presents an imitation learning framework that enhances adaptability and robustness by incorporating long short‐term ...
Erdong Xiao +3 more
wiley +1 more source
The effect of soil type on dry unit volume weight internal friction angle
, 2023 Zeminler doğada sadece doygun halde değil, aynı zamanda kısmen doygun veya kuru halde bulunabilir. Kayma dayanımı, zemin kütlesinin yapısal yükler altında stabilitesini kontrol eden, zeminin göçme gerçekleşmeden karşı koyabileceği en büyük dayanım kayma gerilmesi olarak tanımlanmaktadır. İçsel sürtünme açısı ve kohezyon gibi zeminin kayma parametreleri
openaire +1 more source
Modulus‐Switchable Miniature Robots for Biomedical Applications: A Review
Advanced Robotics Research, EarlyView.Materials, robot designs, proof‐of‐concept functions, and biomedical applications of modulus‐switchable miniature robots. Miniature soft robots have shown great potential in biomedical applications due to their excellent controllability and suitable mechanical properties in biological environments.
Chunyun Wei, Yibin Wang, Jiangfan Yu
wiley +1 more source
Advanced Robotics Research, EarlyView.This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino +7 more
wiley +1 more source