Zobrazeno 1 - 10
of 10 348
pro vyhledávání: '"C. Hall"'
Autor:
A. Zholents, C. Hall
Publikováno v:
Physical Review Accelerators and Beams, Vol 27, Iss 8, p 081601 (2024)
The wiggler-based amplifier of the microbunching instability in the electron beam is considered and compared to a longitudinal space charge amplifier consisting of the drifts and chicanes. The gain in the magnitude of a seed perturbation of the elect
Externí odkaz:
https://doaj.org/article/d137dbe8e387405c80875f08fb03e982
Autor:
C. Hall, V. Ramasamy
Publikováno v:
International Journal of Thermofluids, Vol 21, Iss , Pp 100527- (2024)
Compressed gas in cylinders is currently the preferred solution for storing hydrogen on board vehicles. Fast-filling combined with high storage pressures is required to meet competitive targets of long driving ranges and short refuelling times. Exper
Externí odkaz:
https://doaj.org/article/dc3c56557ef04a21a08e53a6b6266d48
Publikováno v:
The Astrophysical Journal Letters, Vol 948, Iss 2, p L26 (2023)
It may be possible to detect biosignatures of photosynthesis in an exoplanet’s atmosphere. However, such a detection would likely require a dedicated study, occupying a large amount of telescope time. It is therefore prudent, while searching for si
Externí odkaz:
https://doaj.org/article/49fdd246e95b4b26888bd20b045da197
Autor:
J. Jaen, T. Renkwitz, J. L. Chau, M. He, P. Hoffmann, Y. Yamazaki, C. Jacobi, M. Tsutsumi, V. Matthias, C. Hall
Publikováno v:
Annales Geophysicae, Vol 40, Pp 23-35 (2022)
Specular meteor radars (SMRs) and partial reflection radars (PRRs) have been observing mesospheric winds for more than a solar cycle over Germany (∼ 54∘ N) and northern Norway (∼ 69∘ N). This work investigates the mesospheric mean zonal wind
Externí odkaz:
https://doaj.org/article/bc1c3e8101f54e8b8805c88cab9b153d
Autor:
G. Stober, A. Kozlovsky, A. Liu, Z. Qiao, M. Tsutsumi, C. Hall, S. Nozawa, M. Lester, E. Belova, J. Kero, P. J. Espy, R. E. Hibbins, N. Mitchell
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 6509-6532 (2021)
Ground-based remote sensing of atmospheric parameters is often limited to single station observations by vertical profiles at a certain geographic location. This is a limiting factor for investigating gravity wave dynamics as the spatial information
Externí odkaz:
https://doaj.org/article/49bbaed7924a43a9995188db55f5f69d
Publikováno v:
Cancer Cell International, Vol 21, Iss 1, Pp 1-15 (2021)
Abstract Background In vivo imaging using fluorescence is used in cancer biology for the detection, measurement and monitoring of tumours. This can be achieved with the expression of fluorescent proteins such as iRFP, which emits light at a wavelengt
Externí odkaz:
https://doaj.org/article/a3ed8efe22bb4fe5a3d6ee73c9456701
Publikováno v:
The Astrophysical Journal, Vol 947, Iss 2, p 60 (2023)
Observations of protoplanetary disks have shown that forming exoplanets leave characteristic imprints on the gas and dust of the disk. In the gas, these forming exoplanets cause deviations from Keplerian motion, which can be detected through molecula
Externí odkaz:
https://doaj.org/article/f97fcbf86261429bbd5c8c96f4464994
Publikováno v:
Radio Physics and Radio Astronomy, Vol 24, Iss 3, Pp 195-205 (2019)
Purpose: Search for the connection of seasonal variations in characteristics of the Earth-ionosphere global resonator with air temperature in Africa. Comparison of results obtained in Arctica, Antarctica and in the midlatitudes of the Northern Hemisp
Externí odkaz:
https://doaj.org/article/5cc6cb755283449b949c25f50e0d614d
The impact of population growth and climate change on food security in Africa: looking ahead to 2050
Publikováno v:
International Journal of Agricultural Sustainability, Vol 15, Iss 2, Pp 124-135 (2017)
Providing nutritious and environmentally sustainable food to all people at all times is one of the greatest challenges currently facing society. This problem is particularly acute in Africa where an estimated one in four people still lack adequate fo
Externí odkaz:
https://doaj.org/article/13e466664e924e77b973bdbb17f2f985
Autor:
T. Takahashi, S. Nozawa, T. T. Tsuda, Y. Ogawa, N. Saito, T. Hidemori, T. D. Kawahara, C. Hall, H. Fujiwara, N. Matuura, A. Brekke, M. Tsutsumi, S. Wada, T. Kawabata, S. Oyama, R. Fujii
Publikováno v:
Annales Geophysicae, Vol 33, Pp 941-953 (2015)
We have quantitatively evaluated generation mechanisms of a sporadic sodium layer (SSL) based on observational data obtained by multiple instruments at a high-latitude station: Ramfjordmoen, Tromsø, Norway (69.6° N, 19.2° E). The sodium lidar o
Externí odkaz:
https://doaj.org/article/c23f6932deb2407aa04f8c4ecb8455cb