Abstract: To realize atmospheric monitoring missions for carbon neutrality, this paper proposes an low earth orbit (LEO)-LEO occultation orbit design and optimization method for the user-specified point target revisit problem. First, ...

Abstract: The original single component of seismic data served as the foundation for the majority of previous investigations on the impact of pulse-like ground motion on the dynamic response of structures. The seismic responses of ...

Abstract: This paper solves the time-fixed optimal elliptic orbital maneuver problem with continuous radial thrust on the chaser based on the generating function technique. Firstly, by using the relative direction cosine matrix, the ...

Abstract: This paper solves the time-fixed optimal elliptic orbital maneuver problem with continuous radial thrust on the chaser based on the generating function technique. Firstly, by using the relative direction cosine matrix, the ...

Abstract: This paper provides two new solutions to the energy-optimal impulsive correction for argument of perigee using Gauss’s variational equations (GVEs). A linear analytical approximation was derived by solving a cubic polynomial ...

Abstract: This paper proposes a new method to solve Lambert’s problem with multiple constraints, including the impulse-magnitude constraints, the trajectory-radius constraints, and the terminal-impact-angle constraint. First, the ...

Abstract: The minimum-time coplanar interception problem with an upper-bounded tangent impulse for a nonmaneuvering target is studied. This problem requires the same flight time for two spacecraft and a transfer orbit tangent to the ...

Abstract: Generally, low-mobility individuals, those with less access to transportation options and who are often marginalized in the social environment, can be divided into three groups: older adults, low-income individuals, and ...

Abstract: Currently, most of the anode materials for lithium-ion batteries (LIBs) suffer from the problems of capacity degradation and reduction of cycle life due to volume expansion and polarization. Here we have successfully ...