Results 111 to 120 of about 1,220,472 (246)
Manipulating Atomic Disorder and Mesoscale Architectures for High‐Efficiency Thermoelectric Modules
Advanced Science, EarlyView.The in situ reaction of PbTiO3 precursor reacts in situ with the Bi0.5Sb1.5Te3 matrix, effectively enlarging the energy barrier for minority carrier excitation and suppressing bipolar diffusion, and predominantly scattering mid‐to‐low frequency phonons. Ultimately, a single thermoelectric module was fabricated to achieve a competitive efficiency of ∼7%
Jiwu Xin +10 more
wiley +1 more source
Earth-mass Planets in Tandem Disks
The Astrophysical JournalThis paper presents a new terrestrial planet formation theory demonstrating that Earth-mass planets form naturally in tandem protosolar disks. Our model builds upon tandem planet formation theory, incorporating magneto-rotational instability (MRI ...
Tokuhiro Nimura, Toshikazu Ebisuzaki
doaj +1 more source
Modelos del planeta Tierra en escolares rurales de Chile / Planet Earth models about students in rural schools from Chile [PDF]
Liberabit, 2015 RESUMEN El presente estudio tuvo como objetivo identificar los modelos del planeta Tierra en escolares mapuches y no mapuches de procedencia rural. Los participantes fueron 40 escolares distribuidos en dos grupos de edad, quienes respondieron a una tarea
Paula Alonqueo Boudon +3 more
doaj
Light‑Driven Propulsion of Graphene Aerogels in Microgravity
Advanced Science, EarlyView.Ultralight graphene aerogels convert laser light into thrust. Parabolic‐flight experiments directly compare their motion in microgravity and at 1 g, revealing order‐of‐magnitude enhancements in distance, velocity, and transient thrust when weight and friction are removed (∼50 times enhancement).
Omnia Khattab +10 more
wiley +1 more source
How understanding planet Earth became science
Nature CommunicationsHumanity’s understanding of planet Earth has evolved from myth and metaphor to measurement and models, yet our questions have remained strikingly similar.
doaj +1 more source
Astronomy & AstrophysicsIn protoplanetary discs, the presence of dust traps can significantly alter the transport of solids from the outer to the inner regions, and hence they are often invoked as an explanation for the chemical diversity of inner discs observed with the James ...
Houge Adrien +3 more
doaj +1 more source
Advanced Science, EarlyView.This study designs a targeted nanocomposite (ct@HMCF‐Dex) that responds to acidic infection microenvironments, releasing components which amplify oxidative stress. It disrupts bacterial redox balance, chelates metals to sustain lipid peroxidation, and synergistically induces cuproptosis/ferroptosis‐like death.
Zehui Xiao +6 more
wiley +1 more source
Ultra‐Low Intensity Continuous Wave Laser Ablation Propulsion With Graphene‐Engineered Wood
Advanced Science, EarlyView.Graphene delignified wood converts continuous wave laser energy into thrust. Laser propulsion experiments in vacuum reveal the lowest laser ablation threshold intensities and the greatest density‐normalized specific impulse in literature. The results highlight graphene delignified wood as a potential efficient, sustainable, strong, and lightweight ...
Afnan S. M. Elmubasher +10 more
wiley +1 more source