Results 101 to 110 of about 11,758 (294)

Physics of SNeIa and Cosmology

open access: yes, 2003
We give an overview of the current understanding of Type Ia supernovae relevant for their use as cosmological distance indicators. We present the physical basis to understand their homogeneity of the observed light curves and spectra and the observed ...
Gerardy, C.   +3 more
core   +2 more sources

Multifunctional E‐Tattoos Based on Electrospun PVBVA Fibers Coated with Ti3C2Tx MXene for Energy Harvesting, Energy Storage, and Biometric Sensing

open access: yesAdvanced Science, EarlyView.
This study explores a novel E‐tattoo made from PVBVA fibers coated with Ti3C2Tx MXene. The device is designed to harvest energy directly from the human body, providing power for itself. The research demonstrates the E‐tattoo's capability for charge storage and its potential for health monitoring through integrated ECG and EMG sensing, all within a ...
Ajay Pratap   +16 more
wiley   +1 more source

Synergy of high-efficiency passive protective nanocomposite materials and active liquid cooling for suppressing thermal diffusion in lithium-ion power batteries

open access: yesApplications in Energy and Combustion Science
The widespread adoption of high-energy-density NCM 811 lithium-ion batteries in electric vehicles is hampered by significant safety risks associated with thermal runaway and its propagation.
Hao Zhang   +5 more
doaj   +1 more source

Hierarchical Strain‐Modified Medium‐Entropy Carbide Ceramics Exhibit Exceptional Ablation Resistance up to 2400°C

open access: yesAdvanced Science, EarlyView.
A novel strategy is developed by doping reduced graphene oxide (rGO) into a (HfZrTi)C medium‐entropy ceramic. This induces a hierarchical strain modification mechanism, synergistically inhibiting crack propagation at the microscale and dissipating stress at the mesoscale.
Junyi Xiao   +8 more
wiley   +1 more source

Discharge by Short Circuit Currents of Parallel-Connected Lithium-Ion Cells in Thermal Propagation

open access: yesBatteries, 2019
The increasing need for high capacity batteries in plug-in hybrids and all-electric vehicles gives rise to the question of whether these batteries should be equipped with a few large capacity cells or rather many low capacity cells in parallel.
Sascha Koch   +3 more
doaj   +1 more source

Unveiling a Stable Polysulfide Transport Framework in a Fluorine‐Free Li‐S Batteries

open access: yesAdvanced Science, EarlyView.
This work unveils a lithium thiophosphate reaction pathway activated by trigger P2S5 units, which initiate fast self‐assembly and shift the system away from conventional Li‐S reactions. The reversible Li‐P‐S framework delivers stability, safety, and high energy density, while enabling a distinct solid‐liquid hybrid electrochemical mode that provides a ...
Feng‐Yu Wu   +3 more
wiley   +1 more source

Recent developments in planet migration theory

open access: yes, 2012
Planetary migration is the process by which a forming planet undergoes a drift of its semi-major axis caused by the tidal interaction with its parent protoplanetary disc.
A. Crida   +109 more
core   +3 more sources

A Microfiber‐Reinforced Janus Hydrogel E‐Skin With Recyclable Feature for Multimodal Sensing and Gender‐Specific Physiological Monitoring

open access: yesAdvanced Science, EarlyView.
Hydrogel‐based wearable electronics hold great promise for physiological monitoring in privacy‐sensitive regions. In this study, a polyurethane (PU) microfiber‐reinforced gelatin hydrogel e‐skin is developed, boasting multiple advantages such as ultra‐thinness, high toughness, and long‐term skin conformability.
Yarong Ding   +11 more
wiley   +1 more source

Integrated Ultrasound Device for Precision Bladder Volume Monitoring via Acoustic Focusing and Machine Learning

open access: yesAdvanced Science, EarlyView.
We present a conformable wearable ultrasound patch for noninvasive bladder volume monitoring. A flexible PZT array combined with a concave acoustic lens concentrates acoustic energy and improves depth selectivity through the anterior pelvic wall.
Long Long Cao   +4 more
wiley   +1 more source

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