Results 41 to 50 of about 411,045 (265)

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

Advanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan, Thomas D. Small, Gregory F. Metha, Mahmoud Adel Hamza, Thomas J. O'Dea, Yideng Shen, Cameron J. Shearer   +6 more
wiley   +1 more source

Temporal Variations of the Turbulence Profiles at the Sayan Solar Observatory Site

Atmosphere, 2019
The paper focuses on the development of the method to estimate the mean characteristics of the atmospheric turbulence. Using an approach based on the shape of the energy spectrum of atmospheric turbulence over a wide range of spatial and temporal scales,
Artem Shikhovtsev, Pavel Kovadlo, Vladimir Lukin   +2 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

Development of a telescope for medium-energy gamma-ray astronomy [PDF]

, 2012
The Advanced Energetic Pair Telescope (AdEPT) is being developed at GSFC as a future NASA MIDEX mission to explore the medium-energy (5–200 MeV) gamma-ray range.
Bloser, Peter F., DeNolfo, Georgia A, Dion, Michael P, Hunter, Stanley D, Legere, Jason S., McConnell, Mark L, Nowicki, Suzanne F, Ryan, James M., Son, Seunghee, Stecker, Floyd   +9 more
core   +2 more sources

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, Irena Zubak, Andreas Raabe, Josie Hughes   +3 more
wiley   +1 more source

Experimental Investigations of Sigma Vectors in Nodal Aberration Theory for Coma-Free Pivot Misalignment State of a Cassegrain Telescope

Gazi Üniversitesi Fen Bilimleri Dergisi
The study aims experimental investigation of the sigma vectors in Nodal Aberration Theory for a customized non-aplanatic high-precision Cassegrain telescope under coma-free pivot point (CFPP) misalignment conditions.
Meltem Yeşiltepe, Sefer Bora Lişesivdin   +1 more
doaj   +1 more source

Adaptive Optics for Extremely Large Telescopes

, 2019
Adaptive Optics has become a key technology for the largest ground-based telescopes currently under or close to begin of construction. Adaptive optics is an indispensable component and has basically only one task, that is to operate the telescope at its ...
Hippler, Stefan
core   +1 more source

Hybrid Continuum Robot Designs and Architectures for Healthcare Applications

Advanced Robotics Research, EarlyView.
Hybrid continuum robots represent an emerging class of flexible manipulators that blend materials, structures, and actuation concepts from the established fields of soft and continuum robotics. This review introduces an accessible framework to distinguish key hybridization approaches, surveys current designs aimed at complex clinical applications, and ...
Burak Ozdemir, Muhammad A. Khalid, Manish Chauhan, Pietro Valdastri, James H. Chandler   +4 more
wiley   +1 more source

Project of the Large Solar Telescope with mirror 3 m in diameter

Solar-Terrestrial Physics, 2020
One of the most important problems of modern solar physics is the observation of the small-scale structure of the solar atmosphere at various heights (including the chromosphere and corona) in different spectral lines.
Grigoryev V.M., Demidov M.L., Kolobov D.Yu., Pulyaev V.A., Skomorovsky V.I., Chuprakov S.A.   +5 more
doaj   +1 more source

Implementation of a Large-Area Diffractive Lens Using Multiple Sub-Aperture Diffractive Lenses and Computational Reconstruction

Photonics, 2022
Direct imaging systems that create an image of an object directly on the sensor in a single step are prone to many constraints, as a perfect image is required to be recorded within this step.
Shivasubramanian Gopinath, Praveen Periysamy Angamuthu, Tauno Kahro, Andrei Bleahu, Francis Gracy Arockiaraj, Daniel Smith, Soon Hock Ng, Saulius Juodkazis, Kaupo Kukli, Aile Tamm, Vijayakumar Anand   +10 more
doaj   +1 more source