Results 11 to 20 of about 575,458 (256)

Active debris removal mission from LEO with electric and hybrid propulsion [PDF]

open access: yes, 2011
Debris proliferation in space environment is an impending problem for preserving future missions. Although prevention measures (IADC guidelines, NASA Handbook for Limiting Orbit Debris) with the intent to regulate and limit the space trac are adopted,
Sansica, A.
core   +3 more sources

An energy-balance model for debris-covered glaciers including heat conduction through the debris layer [PDF]

open access: yes, 2010
Extensive covers of supraglacial debris are often present in glacier ablation areas, and it is essential to assess exactly how the debris affects glacier melt rates.
Brock, B.W.   +5 more
core   +1 more source

A distributed energy-balance melt model of an alpine debris-covered glacier [PDF]

open access: yes, 2014
Distributed energy-balance melt models have rarely been applied to glaciers with extensive supraglacial debris cover. This paper describes the development of a distributed melt model and its application to the debris-covered Miage glacier, western ...
Kirkbride, M.   +23 more
core   +1 more source

Debris cover and surface melt at a temperate maritime alpine glacier: Franz Josef Glacier, New Zealand [PDF]

open access: yes, 2012
Melt rates on glaciers are strongly influenced by the presence of supraglacial debris, which can either enhance or reduce ablation relative to bare ice.
Brook, Martin S.   +5 more
core   +1 more source

Human Population Density is a Poor Predictor of Debris in the Environment

open access: yesFrontiers in Environmental Science, 2021
There have been a variety of attempts to model and quantify the amount of land-based waste entering the world’s oceans, most of which rely heavily on global estimates of population density as the key driving factor.
Qamar Schuyler   +10 more
doaj   +1 more source

Representing moisture fluxes and phase changes in glacier debris cover using a reservoir approach [PDF]

open access: yes, 2014
Due to the complexity of treating moisture in supraglacial debris, surface energy balance models to date have neglected moisture infiltration and phase changes in the debris layer.
Essery, Richard   +17 more
core   +2 more sources

Genetic Algorithm for Space Debris and Space Objects Attitude Motion Reconstruction Through Optical Measurements [PDF]

open access: yes, 2023
Space debris has recently become a major problem in the planning and execution of space missions. Due to the recent widespread placement of satellite mega- constellations in Low Earth Orbits (LEO), where most of the catalogued debris is located, the need
Shariar Hadji Hossein   +8 more
core  

Satellite Orbit Prediction Using Big Data and Soft Computing Techniques to Avoid Space Collisions

open access: yesMathematics, 2021
The number of satellites and debris in space is dangerously increasing through the years. For that reason, it is mandatory to design techniques to approach the position of a given object at a given time.
Cristina Puente   +3 more
doaj   +1 more source

A Preliminary Analysis of the Wear Pathways of Sliding Contacts on Temporomandibular Joint Total Joint Replacement Prostheses

open access: yesMetals, 2021
In the last years, several materials and design have been assessed in an attempt to improve the mechanical performance of temporomandibular joint total joint replacement (TMJ TJR) prostheses.
Henrique Pinto-Borges   +5 more
doaj   +1 more source

Current Problems and Challenges in International Space Law: Legal Aspects [PDF]

open access: yesAdvanced Space Law, 2020
The article is devoted to the study and research of contemporary legal issues in the field of international space law. Today we are witnessing the rapid and unstoppable development of the space industry.
Inesa Kostenko
doaj   +1 more source

Home - About - Disclaimer - Privacy