Results 151 to 160 of about 7,132 (302)
Advanced Intelligent Systems, EarlyView.A physics‐guided deep learning framework, ParamNet, is introduced for the intelligent self‐inversion of vacuum optical tweezers. By fuzing dual‐branch time–frequency features with physical dynamical constraints, it achieves high‐accuracy calibration of trap parameters from short‐window, low‐frequency trajectories, outperforming traditional methods ...
Qi Zheng +4 more
wiley +1 more source
Exploiting Ferroelectric and Spintronic Dynamics for Neural Network Computation
Advanced Intelligent Systems, EarlyView.Ferroelectric and spintronic devices, relying on the control of polarization and magnetization, offer intrinsically fast, durable, energy‐efficient, and low‐latency building blocks for analog in‐memory computing. The hysteretic dynamics of an order parameter are leveraged to provide nonvolatile, multistate memory and nonlinear switching. Brain‐inspired
Dashiell Harrison +4 more
wiley +1 more source
Design of an X-band Oscillator Using Substrate-integrated Cavity
, 2007 本論文設計了一個可在基板合成(Substrate-integrated)的共振腔，並將共振腔的負載品質因素(Loaded Quality Factor)設計到400。此共振腔是完全平面的，可以在大量製造的平板電路製程中使用。根據此一高品質因素的共振腔，本論文設計了一個X頻段(X-band)的振盪器。該振盪器之振盪頻率為10 GHz，輸出必v為10 dBm。量測而得的相位雜訊為-110 dBc/Hz @ 100 kHz offset。此相位雜訊比起使用同樣製程的微帶線振盪器(Microstrip ...
嚴聚川, Yen, Chu-Chuan
core
A Chiral Saddle‐Shaped Nanographene With Two Heptagon‐Embedded [4]Helicenes
Angewandte Chemie International Edition, EarlyView.We present a novel synthetic strategy toward a chiral saddle‐shaped nanographene (cSNG) via a two‐step oxidation of a prochiral anthracene precursor. The Scholl‐type oxidation first yields a key intermediate with sp3‐defect heptagons, and subsequent oxidative dehydrogenation affords fully conjugated cSNG.
Felix Trautner +11 more
wiley +1 more source
Angewandte Chemie International Edition, EarlyView.An improved low‐temperature synthesis enables the first comprehensive structural and spectroscopic characterisation of neutral hexacyanotrimethylenecyclopropane (CN6CP). Combined IR/Raman, UV–Vis and ssNMR analyses reveal a deeper understanding of its oxidation‐state‐dependent charge redistribution, σ‐aromaticity of the cyclopropane core, and redox ...
Jan P. Soyka +8 more
wiley +1 more source
Superefficient optical frequency division referenced to μHz Schawlow-Townes-linewidth quantum noise-limited lasers. [PDF]
Sci AdvHu J +14 more
europepmc +1 more source
Femtosecond Nd:glass oscillator operating in normal dispersion regime
, 2008 A diode-pumped, prismless Nd:glass laser oscillator, modelocked by a semiconductor saturable absorber, was stabilized against self-Q-switching by using a phase-mismatched second harmonic crystal.
AGNESI, ANTONIANGELO +3 more
core
Precision timekeeping with atomic clocks: evolution and future directions. [PDF]
Nat CommunBisht A, Arora P, Achanta VG.
europepmc +1 more source
Analysis of signals of stabilized autodynes
, 2011 Results of the autodyne signal analysis of the self-oscillating systems stabilized in frequency by the external high-quality cavity are given. The coupling between the main and stabilizing cavities is realized on the basis of a pass-reflective filter ...
Ignatkov, Kirill A. +2 more
core
Fieldoscopy at the quantum limit. [PDF]
Light Sci ApplZimin DA, Ashoka A, Reiter F, Rao A.
europepmc +1 more source