Zobrazeno 1 - 10
of 3 124
pro vyhledávání: '"Kilogram"'
Autor:
Enrico Massa
Publikováno v:
Physics, Vol 6, Iss 2, Pp 845-858 (2024)
The International System of Units (SI), the current form of the metric system and the world’s most used system of units, has been continuously updated and refined since the Metre Convention of 1875 to ensure that it remains up to date with the late
Externí odkaz:
https://doaj.org/article/f7de55a86e5c4171bf7d237b656fa97e
Autor:
Meng Shi, Wei Xiong, Jie Feng, Lihe Wu, Jing Yang, Yudie Lu, Xuanyi Lu, Qingdeng Fan, Hemin Nie, Yunlu Dai, Chenggong Yan, Ye Tian, Zheyu Shen
Publikováno v:
Journal of Nanobiotechnology, Vol 22, Iss 1, Pp 1-15 (2024)
Abstract To overcome the problems of commercial magnetic resonance imaging (MRI) contrast agents (CAs) (i.e., small molecule Gd chelates), we have proposed a new concept of Gd macrochelates based on the coordination of Gd3+ and macromolecules, e.g.,
Externí odkaz:
https://doaj.org/article/26466d6c6212429f975df70f55fc70a1
Autor:
THOMAS, MATTHIEU1 matthieu.thomas@lne.fr
Publikováno v:
High Temperatures - High Pressures. 2019, Vol. 48 Issue 3, p193-205. 13p.
Akademický článek
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Autor:
Crane, Leah
Publikováno v:
New Scientist. 5/25/2019, Vol. 242 Issue 3231, p28-29. 2p. 2 Color Photographs.
Autor:
Espen Gaarder Haug
Publikováno v:
Foundations, Vol 3, Iss 2, Pp 199-219 (2023)
The discussion of what matter and mass are has been going on for more than 2500 years. Much has been discovered about mass in various areas, such as relativity theory and modern quantum mechanics. Still, quantum mechanics has not been unified with gr
Externí odkaz:
https://doaj.org/article/c8a257297d2746f2946dbe9dbe428454
Publikováno v:
New Scientist. 11/24/2018, Vol. 240 Issue 3205, p56-56. 1p. 2 Color Photographs.
Publikováno v:
New Scientist. 11/24/2018, Vol. 240 Issue 3205, p6-6. 1/8p.
Autor:
Moskowitz, Clara (AUTHOR)
Publikováno v:
Scientific American. Nov2018, Vol. 319 Issue 5, p19-19. 2/3p. 1 Color Photograph.
Publikováno v:
Materials, Vol 17, Iss 3, p 549 (2024)
Roller-compacted concrete (RCC) for pavements has experienced problems with its physical-mechanical performance over extended periods due to ambient and in situ curing conditions. Accordingly, this study aimed to present multiple regression equations
Externí odkaz:
https://doaj.org/article/132ba490be3a4682a290a9f21be50988