A5067755845- Nonlinear Optical Materials Studies
- Nonlinear Optical Materials Research
- Geomagnetism and Paleomagnetism Studies
- Ionosphere and magnetosphere dynamics
- Solar and Space Plasma Dynamics
- Earthquake Detection and Analysis
- Photochromic and Fluorescence Chemistry
- Advanced Control Systems Optimization
- Photochemistry and Electron Transfer Studies
Institute of Space Sciences
2025
Shandong University
2025
The important early positive part of main phase (MP) from onset (MPO) to 0‑level SYM-H (and Dst, up over 200 nT) was somehow missed in the treatment geomagnetic storms. In this paper, we include MP for 1000 (out 1360) storms (SYM-HMin ≤-25 having MPO identified index 1981-2024 by a computer algorithm using 5 selection criteria. is included raising 0-level MPO-level, which increases revised storm intensity (SYM-HMinr) -145 nT and impulsive strength (IpsSYM-Hr) -139 nT....
Abstract Three Donor‐ π ‐Acceptor‐ ‐Donor type styryl dyes ( 5a‐c ) with different secondary donors are synthesized and characterized to study their nonlinear linear optical properties. The structure–property relationships of the described in light systematic photophysical theoretical investigations. characteristics influenced by polarity medium, an appreciable bathochromic shift emission 5b = 81 nm) large Stoke shifts 104–173 polar solvents. showed intramolecular charge transfer recognized...
Robust control theory is useful when the plant may be stable, unstable, marginally non-minimum phase or even certain extend nonlinear systems. In this study a ball and beam system considered as an example with two poles at origin. Which