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Titlebook: Secular Solar and Geomagnetic Variations in the Last 10,000 Years; F. R. Stephenson (Institute Director),A. W. Wolfen Book 1988 Kluwer Aca

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31#
發(fā)表于 2025-3-26 22:59:53 | 只看該作者
The Solar Component of the Atmospheric 14C Recordar intervals while similar fluctuations that last only ca. 200 years (“Maunder types”) are found 9 times. The decadal and bi-decadal records of atmospheric Δ.C and model-derived .C production rates, with long-term trend removed, are displayed in 1000 yr intervals.
32#
發(fā)表于 2025-3-27 04:24:12 | 只看該作者
33#
發(fā)表于 2025-3-27 06:47:03 | 只看該作者
Variability of the Present and Ancient Sun: A Test of Solar Uniformitarianismcords. For this purpose we consider naked-eye observations of the Sun, records of the aurora, the tree-ring record of .C, initial investigations of ice-borne .Be, and the possible records of solar influence that are found in sedimentary deposits from the Precambrian.
34#
發(fā)表于 2025-3-27 11:54:39 | 只看該作者
Model Comparison of 14C and 10Be Isotope Records past variations of the geomagnetic field. For .C, the possibility must be considered that the mean production rate before the start of the tree-ring record was higher than in the past 9000 years and that the observed long-term .C decrease is thus due to radioactive decay of the “excess” produced in the past.
35#
發(fā)表于 2025-3-27 17:21:23 | 只看該作者
ering, Medicine, Chemical Analysis, Properties Evaluations and so on. One particular technique of cell manipulation based on stagnation point of swirl is brought up: Create a swirling flow field using three microtubules, and control the stagnation point of swirl through matching the jet velocities o
36#
發(fā)表于 2025-3-27 19:44:33 | 只看該作者
John A. Eddyo four different configurations. The 3D entity models of the MRP robot of all configurations are established by UG software, according to the modular modeling method and certain simplified rules. The stiffness model of the MRP robot is established. The factors affecting stiffness of the MRP robot ar
37#
發(fā)表于 2025-3-28 01:17:14 | 只看該作者
38#
發(fā)表于 2025-3-28 04:08:58 | 只看該作者
M. R. Attolini,M. Galli,T. Nannimodes. A PASA hand is developed with three PASA fingers and 8 degrees of freedom (DOFs). Each finger in the PASA hand has two joints, mainly consists of an actuator, an accelerative gear system, a spring, a parallel four-link mechanism and a mechanical limit. Two extra actuators in the palm of the P
39#
發(fā)表于 2025-3-28 08:54:36 | 只看該作者
40#
發(fā)表于 2025-3-28 14:08:55 | 只看該作者
A. M. Sowardries elastic actuator (SEA) to assist the wearer to adjust the step width, step length and step frequency in real time during walking to maintain balance walking. Through the built multi-sensor fusion gait perturbation and perception integrated platform, the experimenter’s autonomous recovery of bal
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