Results 131 to 140 of about 6,692 (310)
Sealing and Anchoring Performance of Hinged Variable-Diameter Dissolvable Bridge Plug
Shiyou jixieBridge plugs are more and more widely used in staged fracturing of horizontal wells， but traditional compression-anchored bridge plugs are prone to failure in large variable diameter wells.
Li Wenzhe +6 more
doaj +1 more source
Classification of Cylinder Seals: A Reception History [PDF]
Utilising a qualitative, case study approach, this work examines the history of the study of cylinder seals and systems for their classification through the lens of the six notable scholars who impacted those systems most, identifying a continuous ...
Pelgrift, Henry
core +1 more source
Soft Actuators Integrated with Control and Power Units: Approaching Wireless Autonomous Soft Robots
Advanced Robotics Research, EarlyView.Soft robots exhibit significant development potential in various applications. However, there are still key technical challenges regarding material improvement, structure design and components integration. This review focuses on the development and challenge of soft actuators, power components, and control components in untethered intelligent soft ...
Renwu Shi, Feifei Pan, Xiaobin Ji
wiley +1 more source
Advanced Robotics Research, EarlyView.Edible robotics is an emerging field that leverages edible materials to construct robotic systems. This study presents a method to create thin, lightweight, yet powerful edible soft actuators, namely edible pouch motors. The successful operation of these edible actuators and grippers renders their potential to advance future developments in edible ...
Keigo Takahashi +3 more
wiley +1 more source
Ur-Nammu Cylinder Seal (replica) [PDF]
Babylonian cylinder seal replica based on the Ur-Nammu seal from the Third Dynasty of Ur in Sumer. The description included in the package says “A goddess wearing a striped robe and a multiple horned head-dress stands with both hands raised behind the ...
core
A Superlubricated Magnetically Steerable Microcatheter with Integrated Optical and Fluidic Channels
Advanced Robotics Research, EarlyView.A magnetically steerable microcatheter with integrated optical and fluidic channels is developed for multifunctional navigation in tortuous anatomical environments. A surface‐grafted hydrogel coating enables low‐friction actuation. The device demonstrates stable light and fluid delivery during magnetic manipulation, offering a compact platform for ...
Yuntian Du +5 more
wiley +1 more source
Advanced Robotics Research, EarlyView.Permanent magnet putty (PMP) integrates high‐coercivity NdFeB particles with a dynamic polyborosiloxane–Ecoflex matrix, achieving rapid self‐healing (90% mechanical recovery in 10 s) and magnetic recovery within 20 min. With twice the sensitivity of commercial putties, PMP enables precise 5–30 N force detection and discrimination between pressing and ...
Ruotong Zhao +5 more
wiley +1 more source
Shamash in a Boat Cylinder Seal (replica) [PDF]
Cylinder seal replica from Eshnunna, an ancient Sumerian and later Akkadian city, from around 2350–2200 BCE. The description from the package says “This seal represents the nightly travel of the sun god Shamash/Utu in the subterranean waters, believing ...
core
Compliant Pneumatic Feet with Real‐Time Stiffness Adaptation for Humanoid Locomotion
Advanced Robotics Research, EarlyView.A compliant pneumatic foot with real‐time variable stiffness enables humanoid robots to adapt to changing terrains. Using onboard vision and pressure control, the foot modulates stiffness within each gait cycle, reducing impact forces and improving balance. The design, cast in soft silicone with embedded air chambers and Kevlar wrapping, offers durable,
Irene Frizza +3 more
wiley +1 more source