Results 81 to 90 of about 10,283 (224)

Modeling and Mode Switching Analysis of Electro‑hydrostatic Actuators for Primary Flight Control System

Transactions of Nanjing University of Aeronautics and Astronautics
With the advancement of more electric aircraft （MEA） technology， the application of electro-hydrostatic actuators （EHAs） in aircraft actuation systems has become increasingly prevalent.
GUO Tuanhui, FU Yongling, CHEN Juan
doaj   +1 more source

Filling a Gap in Materials Mechanics: Nanoindentation at High Constant Strain Rates up to 105 s−1

Small, EarlyView.
A piezoelectric nanoindentation platform enables constant strain‐rate testing up to 105 s−1, extending experimental capabilities to extreme deformation regimes. Distinct hardness upturns are revealed across crystalline and amorphous materials, verified as intrinsic responses through quasi‐static reloading.
Lalith Kumar Bhaskar, Dipali Sonawane, Hendrik Holz, Jeongin Paeng, Peter Schweizer, Jing Rao, Bárbara Bellón, Damian Frey, Aloshious Lambai, Laszlo Pethö, Johann Michler, Jakob Schwiedrzik, Gaurav Mohanty, Gerhard Dehm, Rajaprakash Ramachandramoorthy   +14 more
wiley   +1 more source

The design concept of the 6-degree-of-freedom hydraulic shaker at ESTEC [PDF]

The European Space Agency (ESA) has decided to extend its test facilities at the European Space and Technology Center (ESTEC) at Noordwijk, The Netherlands, by implementing a 6-degree-of-freedom hydraulic shaker. This shaker will permit vibration testing
Brinkman, P. W., Kretz, D.
core   +1 more source

Innovative development and structural behavior of hollow columns using inflatable molds

Structural Concrete, EarlyView.
Abstract This study introduces a novel approach for constructing hollow columns using precast (PC) methods enhanced by inflatable air tubes as internal molds. The proposed method addresses practical challenges in conventional hollow column construction, such as limited constructability, high production cost, and interference between internal molds and ...
Soo Hyung Kim, Dohak Kim, Jeongun Lee, Yun Mook Lim   +3 more
wiley   +1 more source

One Innovative Method for Improving the Power Density and Efficiency of Electro-Hydrostatic Actuators

Actuators
Although electro-hydrostatic actuators (EHAs) hold broad application prospects in more-electric aircraft and high-end equipment, they face a difficult trade-off between dynamic response and energy efficiency.
Zhenfei Ling, Fengqi Zhou, Hao Liu, Bo Yang, Xiaoping Ouyang   +4 more
doaj   +1 more source

Current Performance and On-Going Improvements of the 8.2 m Subaru Telescope

, 2004
An overview of the current status of the 8.2 m Subaru Telescope constructed and operated at Mauna Kea, Hawaii, by the National Astronomical Observatory of Japan is presented.
Ando, Hiroyasu, Aoki, Kentaro, Aoki, Wako, Chikada, Yoshihiro, Doi, Yoshiyuki, Ebizuka, Noboru, Elms, Brian, Fujihara, Gary, Furusawa, Hisanori, Fuse, Tetsuharu, Gaessler, Wolfgang, Harasawa, Sumiko, Hayano, Yutaka, Hayashi, Masahiko, Hayashi, Saeko, Ichikawa, Shinichi, Imanishi, Masatoshi, Ishida, Catherine, Iye, Masanori, Kaifu, Norio, Kamata, Yukiko, Kanzawa, Tomio, Karoji, Hiroshi, Kashikawa, Nobunari, Kawabata, Koji, Kobayashi, Naoto, Kodaira, Keiichi, Komiyama, Yutaka, Kosugi, George, Kurakami, Tomio, Letawsky, Michael, Mikami, Yoshitaka, Miyashita, Akihiko, Miyazaki, Satoshi, Mizumoto, Yoshihiko, Morino, Junichi, Motohara, Kentaro, Murakawa, Koji, Nakagiri, Masao, Nakamura, Kyoko, Nakaya, Hidehiko, Nariai, Kyoji, Nishimura, Tetsuo, Noguchi, Kunio, Noguchi, Takeshi, Noumaru, Takeshi, Ogasawara, Ryusuke, Ohshima, Norio, Ohyama, Yoichi, Okita, Kiichi, Omata, Koji, Otsubo, Masashi, Oya, Shin, Potter, Robert, Saito, Yoshihiko, Sasaki, Toshiyuki, Sato, Shuji, Scarla, Dennis, Schubert, Kiaina, Sekiguchi, Kazuhiro, Sekiguchi, Maki, Shelton, Ian, Simpson, Chris, Suto, Hiroshi, Tajitsu, Akito, Takami, Hideki, Takata, Tadafumi, Takato, Naruhisa, Tamae, Richard, Tamura, Motohide, Tanaka, Wataru, Terada, Hiroshi, Torii, Yasuo, Uraguchi, Fumihiko, Usuda, Tomonori, Weber, Mark, Winegar, Tom, Yagi, Masafumi, Yamada, Toru, Yamashita, Takuya, Yamashita, Yasumasa, Yasuda, Naoki, Yoshida, Michitoshi, Yutani, Masami   +83 more
core   +1 more source

Experimental and theoretical investigation of longitudinal tunnel lining joints with confining reinforcement

Structural Concrete, EarlyView.
Abstract Precast reinforced concrete segmental linings are frequently used in modern tunneling. In these linings, the longitudinal joints typically have a reduced contact cross‐section and thus often govern the design, particularly in tunnels under high hydrostatic pressure or crossing squeezing or swelling ground with correspondingly high ...
Fabian Morger, Albin Kenel, Walter Kaufmann   +2 more
wiley   +1 more source

Comparative Energy Analysis of a Load Sensing System and a Zonal Hydraulics for a 9-Tonne Excavator

Actuators, 2020
With the rising demand for energy efficiency, displacement-controlled or so-called pump-controlled systems have become an attractive research topic for applications in construction machinery and other off-road vehicles.
Paolo Casoli, Fabio Scolari, Tatiana Minav, Massimo Rundo   +3 more
doaj   +1 more source

Design and Validation of a MR-compatible Pneumatic Manipulandum [PDF]

, 2007
The combination of functional MR imaging and novel robotic tools may provide unique opportunities to probe the neural systems underlying motor control and learning.
Scheidt, Robert A., Suminski, Aaron J., Zimbelman, Janice L.   +2 more
core   +2 more sources

Thermal Analysis of Phase Change Material Based Energy Storage Module With Triply Periodic Minimal Surfaces

Energy Storage, Volume 8, Issue 4, June 2026.
ABSTRACT The thermal performance of two triply periodic minimal surface (TPMS) thermal Energy Storage modules, Diamond and Primitive, was investigated using computational fluid dynamics. The melting and solidification behaviors, as well as the charging and discharging characteristics, of the TPMS Energy Storage units were studied for various flow rates.
Tong Su, Guanyang Xue, Setayesh Javadirad, Animesh Kundu, Alparslan Oztekin   +4 more
wiley   +1 more source