寄生虫 发表于 2025-3-30 08:12:26

G. Lange-Hessetic processes that occur in human embryonic stem cells, as wThere are now compelling human epidemiological and animal experimental data that indicate the risk of developing adult-onset complex diseases and neurological disorders are influenced by persistent epigenetic adaptations in response to pren

STENT 发表于 2025-3-30 14:52:15

http://reply.papertrans.cn/48/4753/475244/475244_52.png

大厅 发表于 2025-3-30 17:05:51

http://reply.papertrans.cn/48/4753/475244/475244_53.png

Neuropeptides 发表于 2025-3-30 22:57:24

Some Aspects of the VLF OMEGA Navigation System as Appropriate to the Arctic Environmentte fixes are required, many users will probably be able to use Omega with a slightly reduced accuracy and reliability even during periods of very severe ionospheric disturbances. A limited amount of experimental evidence is presented to substantiate these indications.

Rejuvenate 发表于 2025-3-31 02:33:54

http://reply.papertrans.cn/48/4753/475244/475244_55.png

虚假 发表于 2025-3-31 06:29:19

The Ionization Maximum in Polar Latitudesstic enhancement in the electron content observed at high latitudes. An attempt to relate the location and the structure of the enhancement region to solar-geomagnetic effects is described. Derived seasonal variations of the southern boundary and diurnal changes in the average position are given.
页: 1 2 3 4 5 [6]
查看完整版本: Titlebook: Ionospheric Radio Communications; Kristen Folkestad Book 1968 Springer Science+Business Media New York 1968 astronomy.communication.physic