Results 71 to 80 of about 123,664 (306)
A Methodology of Designing the Teeth Conjugation in a Planetary Roller Screw
Archive of Mechanical Engineering, 2016 The paper presents the methodology for designing the teeth conjunction of planetary gears in the planetary roller screw mechanism. A function of the planetary gears is to synchronize an operation of rollers in order to avoid axial displacements.
Lisowski Filip, Ryś Jan
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Definition phase of Grand Tour missions/radio science investigations study for outer planets missions [PDF]
Scientific instrumentation for satellite communication and radio tracking systems in the outer planet exploration mission is discussed. Mission planning considers observations of planetary and satellite-masses, -atmospheres, -magnetic fields, -surfaces, -
Tyler, G. L.
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Advanced Functional Materials, EarlyView.This study shows that lizard osteoderm capping tissue is a hyper‐mineralized hydroxyapatite layer consistently covering the superficial osteoderm surface in those species studied here, yet it varies greatly in morphology, nanostructure, and mechanical performance across species.
Adrian Rodriguez‐Palomo +10 more
wiley +1 more source
MultIHeaTS: A Fast and Stable Thermal Solver for Multilayered Planetary Surfaces
The Planetary Science JournalA fully implicit scheme is proposed for solving the heat equation in 1D heterogeneous media, available as a computationally efficient open-source Python code. The algorithm uses finite differences on an irregular grid and is unconditionally stable due to
Cyril Mergny, Frédéric Schmidt
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Compositional analysis of lunar and planetary surfaces using neutron capture gamma rays, 1 January - 31 March 1968 [PDF]
Detection and quantitative determination of hydrogen on planetary and lunar surfaces by neutron capture gamma ...
Mandler, J. W., Semmler, R. A.
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Nanolayer‐Encapsulated Stretchable Liquid‐Metal Sheets for Thermal Management
Advanced Functional Materials, EarlyView.A stretchable liquid metal sheet with both high thermal conductivity and mechanical flexibility is developed. Its trilayer structure, comprising copper‐particle‐dispersed gallium liquid metal encapsulated by styrene‐butadiene‐styrene nanosheets, shows 40.4 W m−1 K−1 conductivity, elongation exceeding 200%, and retention of 96% of its initial ...
Daisuke Kuse +16 more
wiley +1 more source
Probing Planetary Surfaces and Deep Interiors [PDF]
No abstract ...
Haviland, Heidi
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Emplacement of penetrators into planetary surfaces [PDF]
, 1996 We present experimental data and a model for the low-velocity (subsonic, 0–1000 m/s) penetration of brittle materials by both solid and hollow (i.e., coring) penetrators.
Ahrens, Thomas J. +4 more
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Advanced Functional Materials, EarlyView.This study develops a novel atomic engineering strategy to fine‐tune the spin state of α‐Fe2O3 catalysts toward a medium‐spin state, thereby modulating peroxymonosulfate activation and selectively yielding surface‐bound radicals. Compared with free radicals, surface‐bound radicals exhibit moderated oxidation potential, extended lifespan, surface ...
Shuyu Wang +7 more
wiley +1 more source
Volatile Elements Characterized by MarSCoDe in Materials at Zhurong Landing Site
The Astronomical JournalThe study of volatile elements on the Martian surface is a critical way to explore the geological evolution history of Mars. Volatile elements such as hydrogen (H), sulfur (S), and chlorine (Cl) on the Martian surface act as proxies for the potential ...
Yizhong Zhang +10 more
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