The new conception of regional wind protection effect of agricultural andanimal husbandry windbreak networks is suggested in this paper. In addition,new evaluation meathod and model are presented based on the data fromwind tunnel experiment and tethered balloon observtion.
The mathematic modeling of tethered balloon ascent are build in this paper,a method which is applied to a system of simulations of tethered balloon ascent and three kinds of design scheme about tethered balloon are presented.
Several ascending tethered balloon models which are designed by this system are simulated,and the results of comparison with similar schemes show that the system can guide the practical tethered balloon design.
By using data from the Secondary Tibetan Plateau Science Experiment (TIPEX) in 1998, including enhanced soundings, surface observations, data from captive balloons, remote sensing, and Doppler radar (China and Japan cooperative study of GAME/ Tibet), a monitoring study on the generation and moving track of the cumulus convective systems over the Tibetan Plateau is made, and the relationship between the evolution of cloud systems over the Tibetan Plateau and 1998 flooding in China is studied.
The new conception of regional wind protection effect of agricultural andanimal husbandry windbreak networks is suggested in this paper. In addition,new evaluation meathod and model are presented based on the data fromwind tunnel experiment and tethered balloon observtion.
The mathematic modeling of tethered balloon ascent are build in this paper,a method which is applied to a system of simulations of tethered balloon ascent and three kinds of design scheme about tethered balloon are presented.
Several ascending tethered balloon models which are designed by this system are simulated,and the results of comparison with similar schemes show that the system can guide the practical tethered balloon design.
For a balloon satellite with a semimajor axis of 2.15 Earth's radii and a windage of 30 cm2/g the dimensions of a stochastic zone in eccentricity and solar angle are 10-5and 0.1°, respectively.
We consider the problem of motion of a spherically symmetric balloon satellite along an orbit with a moderate inclination in the neighborhood of a resonance caused by the joint influence of the Earth's oblateness and the pressure of light.
The elemental composition in the eggshell of the captive Reeve's pheasant kept in the Dongzhai National Natural Reserve was significantly different from that of the wild species, with a difference of over 20% on S, Cu, Fe, Al, Mn, Si, Sr, Se and Cr.
The lower intake of Fe, Mn, Si and Sr on the one hand and the higher intake of S, Cu, Al and Cr on the other hand might be responsible for the low fertility of captive Reeve's pheasants in the Dongzhai National Nature Reserve.
Thirty-seven wild plants as food for Asian elephants in the field in Simao, Yunnan province, China and five cultivated plants as food for captive elephants in the Beijing Zoo were collected and analyzed for their main nutrient components.
In this paper, fluxes of momentum and sensible heat are discussed with the data collected by tethered balloon sounding system over the Philippine Sea during the cruise of the R/VSCIENCE 1 from September through October in 1987.
Tethered balloon measurements were made successfully during the September-October, 1987 cruise of theR/V SCIENCE 1 in the Philippine Sea at the northwest of the Warm Pool.
A tethered balloon sounder was used to collect vertical temperature and wind structure data in the Gore River Valley of Western Colorado during December, 1975.
To validate this design concept, two parallel tracks have been undertaken: a numerical simulation of the multi-tethered aerostat system has been assembled, and a one-third scale prototype of the system has been constructed.
系留气球
balloon
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