Results 181 to 190 of about 1,225,963 (300)

Study on Carboxymethylation Modification of Konjac Gum and Its Effect in Drilling Fluid and Fracturing Fluid. [PDF]

Gels
Li Y, Guo P, Qu K, Du W, Wang Y, Chen G.
europepmc   +1 more source

Development of a Novel Surfactant-Based Viscoelastic Fluid System as an Alternative Nonpolymeric Fracturing Fluid and Comparative Analysis with Traditional Guar Gum Gel Fluid. [PDF]

Polymers (Basel), 2023
Patel MC, Ayoub MA, Idress MB, Sircar A.
europepmc   +1 more source

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

Advanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui, Raphael Zufferey, William Stewart, Mohammad Askari, Simon Jeger, Dario Floreano   +5 more
wiley   +1 more source

Analysis of the impact of CO₂ injection on fracturing fluid flowback in shale gas wells. [PDF]

Sci Rep
Kong C, Sun Y, Zheng D, Li Q, Su X, Jia Q, Zhang T, Hou J, Dong L, Zhang X, Suo Y.   +10 more
europepmc   +1 more source

3D Printing of Soft Robotic Systems: Advances in Fabrication Strategies and Future Trends

Advanced Robotics Research, EarlyView.
Collectively, this review systematically examines 3D‐printed soft robotics, encompassing material selections, function integration, and manufacturing methodologies. Meanwhile, fabrication strategies are analyzed in order of increasing complexity, highlighting persistent challenges with proposed solutions.
Changjiang Liu, Bin Cui, Xumin Huang, Xiaoyu (Rayne) Zheng, T. Thang Vo‐Doan, Ruirui Qiao   +5 more
wiley   +1 more source

Performance of a High-Molecular-Weight AM/AA Copolymer in a CO₂-Water Polymer Hybrid Fracturing Fluid Under High-Temperature and High-Pressure Conditions. [PDF]

Polymers (Basel)
Chen T, Zhou S, Yao T, Fu M, Wen Z, Shen Q.   +5 more
europepmc   +1 more source

Impact of Pyrite Oxidation on the Pore-Structure Characteristics of Shale Reservoir Rocks under the Interaction of Fracturing Fluid. [PDF]

ACS Omega, 2022
Sun Z, Ni Y, Wu Y, Lei Y.
europepmc   +1 more source

Degradable Magnetic Composites from Recycled NdFeB Magnets for Soft Actuation and Sensing

Advanced Robotics Research, EarlyView.
This work presents a degradable soft magnetic composite made from recycled NdFeB particles embedded in a gelatin‐based organogel. The material is processed into magnetic sensors and soft robotic components, which can later be dissolved in a green solvent to recover NdFeB magnetic particles.
Muhammad Bilal Khan, Lin Guo, Kilian Schäfer, Eduardo Sergio Oliveros‐Mata, Xiaotao Wang, Florian Hofmann, Matthias Lutzi, Mark Suppelt, Proloy Taran Das, Jan Schmidtpeter, Imants Dirba, Stephan Rinderknecht, Mario Kupnik, Denys Makarov, Oliver Gutfleisch   +14 more
wiley   +1 more source

Design and Evaluation of a Thermally Stable and Salt-Resistant Amphoteric Surfactant-Based Fracturing Fluid for High-Performance Hydraulic Stimulation. [PDF]

Polymers (Basel)
Cao B, Li L, Ma F.
europepmc   +1 more source

Pore Structure Characteristics and Adsorption and Desorption Capacity of Coal Rock after Exposure to Clean Fracturing Fluid. [PDF]

ACS Omega, 2022
Zuo W, Zhang W, Liu Y, Han H, Huang C, Jiang W, Mitri H.   +6 more
europepmc   +1 more source