Results 21 to 30 of about 48,608 (309)

An underground excavation in Barcelona and its interaction with existing structures

, 2021
The construction process for the enlargement of an underground railway station in Barcelona required an additional tunnel excavation below existing structures.
Gens Solé, Antonio, Mariano, Alessandra di, Varga, Annamaria   +2 more
core   +1 more source

Construction of KAGRA: an underground gravitational-wave observatory [PDF]

Progress of Theoretical and Experimental Physics, 2018
Major construction and initial-phase operation of a second-generation gravitational-wave detector KAGRA has been completed. The entire 3-km detector is installed underground in a mine in order to be isolated from background seismic vibrations on the surface.
Akutsu T., Ando M., Araki S., Araya A., Arima T., Aritomi N., Asada H., Aso Y., Atsuta S., Awai K., Baiotti L., Barton M. A., Chen D., Cho K., Craig K., DeSalvo R., Doi K., Eda K., Enomoto Y., Flaminio R., Fujibayashi S., Fujii Y., Fujimoto M. -K., Fukushima M., Furuhata T., Hagiwara A., Haino S., Harita S., Hasegawa K., Hasegawa M., Hashino K., Hayama K., Hirata N., Hirose E., Ikenoue B., Inoue Y., Ioka K., Ishizaki H., Itoh Y., Jia D., Kagawa T., Kaji T., Kajita T., Kakizaki M., Kakuhata H., Kamiizumi M., Kanbara S., Kanda N., Kanemura S., Kaneyama M., Kasuya J., Kataoka Y., Kawaguchi K., Kawai N., Kawamura S., Kawazoe F., Kim C., Kim J., Kim J. C., Kim W., Kimura N., Kitaoka Y., Kobayashi K., Kojima Y., Kokeyama K., Komori K., Kotake K., Kubo K., Kumar R., Kume T., Kuroda K., Kuwahara Y., Lee H. -K., Lee H. -W., Lin C. -Y., Liu Y., Majorana E., Mano S., Marchio M., Matsui T., Matsumoto N., Matsushima F., Michimura Y., Mio N., Miyakawa O., Miyake K., Miyamoto A., Miyamoto T., Miyo K., Miyoki S., Morii W., Morisaki S., Moriwaki Y., Muraki Y., Murakoshi M., Musha M., Nagano K., Nagano S., Nakamura K., Nakamura T., Nakano H., Nakano M., Nakano M., Nakao H., Nakao K., Narikawa T., Ni W. -T., Nonomura T., Obuchi Y., Oh J. J., Oh S. -H., Ohashi M., Ohishi N., Ohkawa M., Ohmae N., Okino K., Okutomi K., Ono K., Ono Y., Oohara K., Ota S., Park J., Pena Arellano F. E., Pinto I. M., Principe M., Sago N., Saijo M., Saito T., Saito Y., Saitou S., Sakai K., Sakakibara Y., Sasaki Y., Sato S., Sato T., Sato Y., Sekiguchi T., Sekiguchi Y., Shibata M., Shiga K., Shikano Y., Shimoda T., Shinkai H., Shoda A., Someya N., Somiya K., Son E. J., Starecki T., Suemasa A., Sugimoto Y., Susa Y., Suwabe H., Suzuki T., Tachibana Y., Tagoshi H., Takada S., Takahashi H., Takahashi R., Takamori A., Takeda H., Tanaka H., Tanaka K., Tanaka T., Tatsumi D., Telada S., Tomaru T., Tsubono K., Tsuchida S., Tsukada L., Tsuzuki T., Uchikata N., Uchiyama T., Uehara T., Ueki S., Ueno K., Uraguchi F., Ushiba T., Van Putten M. H. P. M., Wada S., Wakamatsu T., Yaginuma T., Yamamoto K., Yamamoto S., Yamamoto T., Yano K., Yokoyama J., Yokozawa T., Yoon T. H., Yuzurihara H., Zeidler S., Zhao Y., Zheng L., Agatsuma K., Akiyama Y., Arai N., Asano M., Bertolini A., Fujisawa M., Goetz R., Guscott J., Miener T., Tokoku C., Van Den Brand J. F. J., Van Heijningen J. V.   +203 more
openaire   +4 more sources

Deep Learning Inverse Design of Phase‐Change Reconfigurable Terahertz Metadevices for Multidimensional Secure Communication

Advanced Materials, EarlyView.
A deep learning inverse‐design framework is established to create versatile reconfigurable terahertz metadevices. By synergizing deep learning with phase‐change materials, this approach enables on‐demand customization of multidimensional electromagnetic responses.
Yisheng Dong, Xieyu Chen, Aarthy Nagarajan, Yi Yang, Zhihao Wang, Rui Yu, Chuang Zheng, Chunmei Ouyang, Xueqian Zhang, Tun Cao, Ranjan Singh, Zhen Tian   +11 more
wiley   +1 more source

Design and experimental study of a tethered self-excavating drilling and coring scheme for lunar deep mining

Meitan kexue jishu
The development and utilization of lunar mineral resources is an important way to solve the earth’s energy crisis. Drilling and coring, an effective method for lunar section sample collection, is a key prerequisite for accurately identifying the ...
Mingzhong GAO, Jiahua LI, Haichun HAO, Jing XIE, Yuanru LI, Lang ZHOU, Zheng GAO, Yan WU, Bing JI, Zhipeng WANG, Xuemin ZHOU   +10 more
doaj   +1 more source

Asymmetry in Skipping Enhances Viability Against Control Input Noise

Advanced Robotics Research, EarlyView.
Quadruped animals use asymmetric galloping gaits at high speeds, yet the functional role of this asymmetry remains unclear. This study shows that left–right asymmetry in touchdown angles enhances robustness to control noise. Using a simple two‐legged locomotion model and viability theory, it demonstrates that asymmetric skipping substantially enlarges ...
Yuichi Ambe, Alvin So, Shinya Aoi
wiley   +1 more source

Mechanical Response and Damage Characteristics of Frozen–Thawed Sandstone Across Various Temperature Ranges Under Impact Loads

Fractal and Fractional
Freeze–thaw action is a key factor in the deterioration of the dynamic mechanical behavior of rocks in cold regions. This study used yellow sandstone, which is prevalent in the seasonally cold region of Xinjiang, China.
Dejun Liu, Hai Pu, Kangsheng Xue, Junce Xu, Hongyang Ni   +4 more
doaj   +1 more source

A Perspective on Interactive Theorem Provers in Physics

Advanced Science, EarlyView.
Into an interactive theorem provers (ITPs), one can write mathematical definitions, theorems and proofs, and the correctness of those results is automatically checked. This perspective goes over the best usage of ITPs within physics and motivates the open‐source community run project PhysLean, the aim of which is to be a library for digitalized physics
Joseph Tooby‐Smith
wiley   +1 more source

Performance evaluation and selection of the core drill bits for lunar rock

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
The objective of this study is to systematically examine the drilling efficiency and performance of various core drill bits in lunar rock formation using the discrete element method (DEM) and drilling experiments conducted in a lunar vacuum environment ...
Xuan Wang, Yan Wu, Zheng Gao, Haichun Hao, Lang Zhou, Jiahua Li, Mingzhong Gao   +6 more
doaj   +1 more source

Engineering Study on Underground Construction of Nuclear Power Reactors [PDF]

, 1958
The advantages, disadvantages, and cost of constructing a auclear power reactor underground are outlinedData on underground construction of hydroelectric plants, other structures, and underground reactor projects in Norway and Sweden are reviewed.
Beck, C.
core   +1 more source

Natural Variation of NAR5 Determines Nitrogenase Activity and the Yield in Soybean

Advanced Science, EarlyView.
This study identified NAR5, a gene encoding a subtilisin‐like protease, that regulates nitrogenase activity in soybean nodules. Overexpressing NAR5 delayed nodule senescence, enhancing nitrogenase activity, yield, and low‐nitrogen tolerance. The elite haplotype NAR5HapI‐1 linked to superior nitrogenase activity and greater seed weight has been ...
Chao Ma, Hanyu Zhao, Haojie Feng, Xulun Dong, Lin Chen, Mingliang Yang, Runyi Chen, Chengjun Lei, Chunyan Liu, Qingshan Chen, Dawei Xin, Jinhui Wang   +11 more
wiley   +1 more source