Results 161 to 170 of about 5,905 (257)

Synchronizing climate-carbon cycle heartbeats in the Phanerozoic vegetated icehouses. [PDF]

Nat Commun
Fang Q, Wu H, Montañez IP, Shen SZ, Zeeden C, Wang X, Zhang S, De Vleeschouwer D.   +7 more
europepmc   +1 more source

Mixing‐Driven Defects and Composition Evolution in Multi‐Material Metal Additive Manufacturing

Advanced Science, EarlyView.
Operando synchrotron X‐ray imaging coupled with high‐fidelity multiphysics modeling uncovers how inter‐material mixing reshapes keyhole dynamics and drives distinct pore‐formation pathways in multi‐material laser powder bed fusion (LPBF). Composition‐dependent instabilities trigger defects, whereas rescanning suppresses porosity and homogenizes Cu ...
Zhilang Zhang, Steve Gaudez, Mario Togni, Steven Van Petegem, Markus Bambach, Mamzi Afrasiabi   +5 more
wiley   +1 more source

Healthcare Utilization and Costs After Appropriate or Inappropriate Implantable Defibrillator Shocks: A Retrospective Real-World Data Study in Japan. [PDF]

Clinicoecon Outcomes Res
Noda T, Matsumoto T, Tanaka Y, Goto T.
europepmc   +1 more source

Ultrafast Dynamics of Spin Current and Electron Temperature in Spintronic Terahertz Emitters

Advanced Science, EarlyView.
This work quantifies optical‐pump‐induced THz transmission variations to reveal electron and lattice temperature dynamics and presents time‐resolved THz spectral maps for sub‐picosecond analysis. A 63 ± 8 fs time lag between THz emission and laser excitation is identified, serving as an intrinsic parameter limiting the upper frequency of spintronic THz
Yifan Wang, Zuanming Jin, Miao Cai, Zhiqiang Lan, Zhenjie Ge, Zheng Feng, Wei Tan, Alexei V. Balakin, Alexander P. Shkurinov, Yan Peng, Yiming Zhu   +10 more
wiley   +1 more source

Transients in the Palomar Observatory Sky Survey (POSS-I) may be associated with nuclear testing and reports of unidentified anomalous phenomena. [PDF]

Sci Rep
Bruehl S, Villarroel B.
europepmc   +1 more source

Quantum Photothermal Self‐Monitoring Fiber Probes for In Vivo Photothermal Therapy

Advanced Science, EarlyView.
A miniaturized quantum photothermal fiber probe based on a metal/polymer/glass composite optoelectronic fiber that simultaneously guides lightwave and microwave was developed for the first time. The probe achieves enhanced photothermal conversion (13°C/mW, 25°C–120°C range) while providing real‐time self‐monitoring with 0.2°C thermal resolution at the ...
Wanjun Li, Ruixiao Hu, Jie Mao, Jin Wo, Yunsong Zhang, Liang Chen, Ying Liu, Zhibo Li, Yongxin Lin, Minghui Du, Yaofei Chen, Libing Zhou, Tuan Guo   +12 more
wiley   +1 more source

The connection between the fastest astrophysical jets and the spin axis of their black hole. [PDF]

Nat Astron
Fender RP, Motta SE.
europepmc   +1 more source

Dielectric‐Confinement‐Induced in‐Plane Photoelectric Anisotropy in Isotropic Quasi‐1D γ‐GaS Nanoribbon

Advanced Science, EarlyView.
We investigate the geometry‐governed optoelectronic anisotropy arising from dielectric confinement in quasi‐1D γ‐GaS nanoribbons with intrinsically isotropic atomic structures. Dielectric mismatch between the nanoribbon and its surroundings leads to a general polarization‐dependent photoresponse during near‐field scattering.
Jiawei Jing, Jiamei Chen, Xing Xin, Peisong Peng, Zhihao Wu, Weiheng Zhong, Hanyu Zhang, Wanfu Shen, Jihua Zhang, Yuwei Shan, Yuanzheng Li, Xingang Zhao, Wei Xin, Fang Wang, Weida Hu, Haiyang Xu, Yichun Liu   +16 more
wiley   +1 more source

Radiation-Hardened Perovskite Solar Cells Enabled by Redox-Active V₂O <i>_x</i> Hole Transport Layer for Space Applications. [PDF]

Small Sci
Han EQ, Ahn SH, Choi E, Lee SM, Lee J, Zhang BW, Lyu M, Yun JH.   +7 more
europepmc   +1 more source

Transient sources with LST-1: study of novae, supernovae, and gamma-ray bursts

[eng] The branch of astrophysics that studies transient phenomena allows the exploration of astronomical sources that show temporal variability that can extend from a few fractions of a second to scales as long as tens of years. These transient events can give rise to a wide variety of phenomena observed throughout the electromagnetic spectrum. In some
openaire   +1 more source