Results 111 to 120 of about 474,910 (304)

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

Salt-Resistant Lubricant for Deep Water Drilling Fluids

Zuanjingye yu wanjingye
In deepwater drilling, drilling fluids are affected by seawater, highly mineralized brine, and polyvalent metal ions. Conventional lubricants such as mineral oils, vegetable oils, and fatty acids often exhibit poor dispersion and incompatibility in high ...
Xiaodong LIU, Yongle MA, Tao LIU, Yong ZHANG, Qingyong LI, Ningzi LUO   +5 more
doaj   +1 more source

Proceedings of the Integrated Ocean Drilling Program 302: Arctic Coring Expedition (ACEX)

, 2006
<p>The first scientific drilling expedition to the central Arctic Ocean, Integrated Ocean Drilling Program Expedition 302, Arctic Coring Expedition (ACEX), recovered sediment cores to 428 m below seafloor (mbsf) in water depths of ~1300 m, 250 km ...
Onodera, Jonaotaro, Rio, Domenico, Yamamoto, Masanobu, Jakobsson, Martin, McInroy, David, Koç, Nalân, Suto, Itsuki, O'Regan, Matthew, Clemens, Steven C., Gattacceca, Jérôme, Kaminski, Michael A., Pälike, Heiko, Cronin, Thomas, Suzuki, Noritoshi, Moore, Jr., Theodore C., King, John, Stein, Ruediger, Sakamoto, Tatsuhiko, Eynaud, Frédérique, Rea, Brice, Brinkhuis, Henk, Martinez, Nahysa E., St. John, Kristen, Smith, David C., Watanabe, Mahito, Moran, Kate, Backman, Jan, Jordan, Richard W., Matthiessen, Jens, Dickens, Gerald R., Takahashi, Kozo   +30 more
core   +1 more source

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, Ruokun He, Luqi Li, Hesheng Wang, Zhuo‐Chen Ma, Bing Han   +5 more
wiley   +1 more source

Proceedings of the Integrated Ocean Drilling Program 345: Hess Deep Plutonic Crust

, 2014
<p>Integrated Ocean Drilling Program (IODP) Hess Deep Expedition 345 was designed to sample lower crustal primitive gabbroic rock that formed at the fast-spreading East Pacific Rise (EPR) in order to test competing models of magmatic accretion and ...
Machi, Sumiaki, McCaig, Andrew, de Brito Adriao, Alden, Maeda, Jinichiro, Harigane, Yumiko, Akizawa, Norikatsu, Abe, Natsue, Saha, Abhishek, Falloon, Trevor, Python, Marie, Nozaka, Toshio, Gillis, Kathryn M., Jean, Marlon M., Marks, Naomi E., Wintsch, Robert P., Ildefonse, Benoit, Koepke, Juergen H., Faak, Kathrin, Godard, Marguerite, Cheadle, Michael J., Hoshide, Takashi, Morris, Antony, Friedman, Sarah, Horst, Andrew J., Snow, Jonathan, Klaus, Adam, Meyer, Romain, Guèrin, Gilles, Ceuleneer, Georges, John, Barbara   +29 more
core   +1 more source

A Self‐Healing Permanent Magnet Putty for Soft Robot Skins With Force Sensing and Functional Recovery

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, Mitsuhiro Kamezaki, Ryosuke Dobashi, Yuhiro Iwamoto, Yasushi Ido, Yoshihiro Kawahara   +5 more
wiley   +1 more source

Drilling fluid for deep water drilling.

Journal of the Japanese Association for Petroleum Technology, 2003
In recent year, deep water drilling has become to go deeper area. It is not only oil and gas exploration, but also Methane Hydrate exploration and scientific drilling. In general, deep water drilling has a greater degree of difficulty than conventional drilling.
openaire   +2 more sources

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

Drilling fluid for drilling permafrost rocks

Bulletin of the Tomsk Polytechnic University Geo Assets Engineering
Relevance. The article provides an overview of the problem of drilling wells for oil and gas in conditions of permafrost. When constructing wells for various purposes in conditions of permafrost rocks, special requirements are imposed on the selection of the optimal drilling fluid.
Alexander Ya. Tretyak, Andrey A. Chumakov, Kirill V. Krivosheev   +2 more
openaire   +2 more sources

Proceedings of the Integrated Ocean Drilling Program 304/305: Oceanic Core Complex Formation, Atlantis Massif

, 2006
<p>Integrated Ocean Drilling Program Expeditions 304 and 305 drilled at Atlantis Massif, Mid-Atlantic Ridge 30°N, investigated the processes that control oceanic core complex formation and the exposure of ultramafic rocks in young oceanic ...
Hansen, Heidi-Elisabeth, McCaig, Andrew, Gee, Jeffrey S., Miller, Jay D., Abe, Natsue, Linek, Margaret, Tominaga, Masako, Nozaka, Toshio, Fryer, Patricia B., Delius, Heike, Searle, Roger C., Frost, Bryce R., Michibayashi, Katsuyoshi, Escartin, Javier, Hirth, James Gregory, Godard, Marguerite, Brunelli, Daniele, Hayman, Nicholas W., Awaji, Shunsaku, von der Handt, Anette, Nakagawa, Tatsunori, MacLeod, Christopher J., Abratis, Michael W., Harris, Amber C., Johnson, Kevin, Maeda, Jinichiro, Hirose, Takehiro, Grimes, Craig B., Delacour, Adélie G., Ishimaru, Satoko, Ohara, Yasuhiko, Beard, James S., Ildefonse, Benoit, Mason, Olivia U., Andal, Eric S., Hellebrand, Eric, Einaudi, Florence, Blackman, Donna K., Tamura Hasebe, Akihiro, Charney, Allison, Halfpenny, Angela, Morris, Antony, Zhao, Xixi, Drouin, Marion, Rosner, Martin, Yamasaki, Toru, Christie, David M., Andreani, Muriel, John, Barbara, Karner, Garry D., Suhr, Guenter   +50 more
core   +1 more source