Zobrazeno 1 - 10
of 29
pro vyhledávání: '"JianJun Xing"'
Global warming has exacerbated the instability of the climate and has led to the frequent occurrence of extreme cold and warm events. In this study, we constructed a standardized tree-ring width chronology of Korean spruce (Picea koraiensis Nakai) gr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c574095b122256175dbffe9b0ca18b68
https://doi.org/10.21203/rs.3.rs-1753009/v2
https://doi.org/10.21203/rs.3.rs-1753009/v2
Publikováno v:
Advances in Space Research. 62:2599-2619
An equal-collision-probability-curve (ECPC) method is developed in this paper to address the problem of safe spacecraft proximity maneuvers. Considering the uncertainties’ influence, the ECPC, which represents the curve of equal-collision-probabili
Publikováno v:
In The Journal of Nutrition February 2005 135(2):239-244
Publikováno v:
Chinese Journal of Aeronautics. 29:1730-1739
This paper derives a distance-based formation control method to maintain the desired formation shape for spacecraft in a gravitational potential field. The method is an analogy of a virtual spring-damper mesh. Spacecraft are connected virtually by sp
Publikováno v:
Journal of nanoscience and nanotechnology. 17(1)
We report a method to synthesize Large-diameter and porous carbon nanotubes (LPCNTs) by carbon segregation with nickel nanowires (Ni-NWs) as the template. Unlike carbon nanotubes synthesized via conventional routes, the wall thickness is determined b
Publikováno v:
Materials Science in Semiconductor Processing. 16:1573-1579
Al-doped ZnO (AZO) nanoflowers and nanorods were successfully synthesized by a simple precipitation method in the presence of polyethylene glycol as the surfactant. The effect of Al dosage on the morphology and structure of AZO was investigated. The
Publikováno v:
2016 35th Chinese Control Conference (CCC).
Autonomous orbit determination of satellite formation is considered using the measurements between two satellites. This system can accomplish autonomous navigation by using radio cross-link to measure the relative range and optical devices to measure
Publikováno v:
Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry. 42:30-36
A novel 2-D organic–inorganic hybrid copper-yttrium heterometallic monovacant Keggin phosphotungstate derivative [Cu(dap)2]5.5[Y(α-PW11O39)2]·4H2O (1) (dap = 1,2-diaminopropane) has been hydrothermally synthesized by reaction of Na9[A-α-PW9O34]
Publikováno v:
Science China Technological Sciences. 54:2276-2282
A robust nonlinear control method is presented for spacecraft precise formation flying. With the constraint forces and considering nonlinearity and perturbations, the problem of the formation keeping is changed to the Lagrange systems with the holono
Publikováno v:
Science in China Series E: Technological Sciences. 52:2930-2936
Getting inspiration from the constraint forces in the classical mechanics, we presented the nonlinear control method of multiple spacecraft formation flying to accurately keep the desired formation arrays. Considering nonlinearity and perturbation, w