Results 121 to 130 of about 568,374 (258)

Marx's Concept of Life

European Journal of Philosophy, Volume 34, Issue 1, Page 163-190, March 2026.
Abstract This essay aims to reveal the conceptual unity of an ensemble of concepts of organic, animal, and anthropological life articulated by the young Karl Marx between 1842 and 1844. To lay the groundwork for my analysis, I begin with Marx's general account of “life as activity.” I argue that Marx articulates a hylomorphic theory of organic form in ...
Christopher Shambaugh
wiley   +1 more source

15:1 Resonance effects on the orbital motion of artificial satellites [PDF]

Journal of Aerospace Technology and Management, 2011
The motion of an artificial satellite is studied considering geopotential perturbations and resonances between the frequencies of the mean orbital motion and the Earth rotational motion.
Jorge Kennety S. Formiga, Rodolpho Vilhena de Moraes   +1 more
doaj  

New Model for Hill’s Problem in the Framework of Continuation Fractional Potential

Mathematical and Computational Applications
In this work, we derived a new type model for spatial Hill’s system considering the created perturbation by the parameter effect of the continuation fractional potential. The new model is considered a reduced system from the restricted three-body problem
Elbaz I. Abouelmagd
doaj   +1 more source

Data catalog series for space science and applications flight missions. Volume 1A: Brief descriptions of planetary and heliocentric spacecraft and investigations [PDF]

Planetary and heliocentric spacecraft, including planetary flybys and probes, are described. Imaging, particles and fields, ultraviolet, infrared, radio science and celestial mechanics, atmospheres, surface chemistry, biology, and polarization are ...
Cameron, W. S., Vostreys, R. W.
core   +1 more source

Dynamical Structures under Nonrestricted Hierarchical Planetary Systems with Different Mass Ratios

The Astronomical Journal
Secular dynamics have been extensively studied in both the inner and outer restricted hierarchical three-body systems. In the inner restricted problem, the quadrupole-order resonance (i.e., the well-known Kozai resonance) causes large coupled ...
Xiumin Huang, Hanlun Lei
doaj   +1 more source

Topical collection “50 years of Celestial Mechanics and Dynamical Astronomy”

Celestial mechanics & dynamical astronomy, 2020
A. Celletti
semanticscholar   +1 more source

GENERAL CONCEPTS ABOUT SOLID BODY ASTRODYNAMICS

Nonconventional Technologies Review, 2020
The paper presents the theoretical foundation of the dynamics of the solid body in gravitational movement in the outer space. It is known that the movement of solid bodies in space is subjects both the laws of Newton's classical mechanics and those of ...
Viorel Mihai Nani, Alin Nani
doaj  

Celestial mechanics

Scholarpedia, 2009
  +5 more sources

Kepler Multitransiting System Physical Properties and Impact Parameter Variations

The Astronomical Journal
We fit a dynamical model to Kepler systems that contain four or more transiting planets using the analytic method AnalyticLC and obtain physical and orbital parameters for 101 planets in 23 systems, of which 95 are of mass significance better than 3 σ ...
Yair Judkovsky, Aviv Ofir, Oded Aharonson   +2 more
doaj   +1 more source

Evolution of Lunar Orbit under Climate Dynamics since the Last Glacial Cycle

The Astrophysical Journal
Understanding the long-term evolution of lunar orbit is an essential task in astronomy and astrophysics because lunar and planetary ephemerides are indispensable in many important applications, such as spacecraft navigation and reference frame ...
M. Kiani Shahvandi
doaj   +1 more source