More Like this

1. Steady-State Convergence of Discrete Time State-Space Modeling with State-Dependent Switching

   https://doi.org/10.1109/COMPEL49091.2020.9265734  

   Baxter, Jared A. ; Costinett, Daniel J. ( November 2020 , 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL))

   null (Ed.)

   Steady-state modeling plays an important role in the design of advanced power converters. Typically, steady-state modeling is completed by time-stepping simulators, which may be slow to converge to steady-state, or by dedicated analysis, which is time-consuming to develop across multiple topologies. Discrete time state-space modeling is a uniform approach to rapidly simulate arbitrary power converter designs. However, the approach requires modification to capture state-dependent switching, such as diode switching or current programmed modulation. This work provides a framework to identify and correct state-dependent switching within discrete time state-space modeling and shows the utility of the proposed method within the power converter design process. 

   more » « less
2. State-to-state vacuum ultraviolet photodissociation study of CO 2 on the formation of state-correlated CO(X 1 Σ + ; v) with O( 1 D) and O( 1 S) photoproducts at 11.95–12.22 eV

   https://doi.org/10.1039/c5cp01321f  

   Lu, Zhou ; Chang, Yih Chung ; Benitez, Yanice ; Luo, Zhihong ; Houria, Adel Ben ; Ayari, Tarek ; Al Mogren, Muneerah Mogren ; Hochlaf, M. ; Jackson, W. M. ; Ng, C. Y. ( January 2015 , Phys. Chem. Chem. Phys.)
3. SrVARM: State Regularized Vector Autoregressive Model for Joint Learning of Hidden State Transitions and State-Dependent Inter-Variable Dependencies from Multi-variate Time Series

   https://doi.org/10.1145/3442381.3450116  

   Hsieh, Tsung-Yu ; Sun, Yiwei ; Tang, Xianfeng ; Wang, Suhang ; Honavar, Vasant G. ( April 2021 , WWW '21: Proceedings of the Web Conference 2021)

   null (Ed.)
4. Smoothing-based compressed state Kalman filter for joint state-parameter estimation: Applications in reservoir characterization and CO 2 storage monitoring: SMOOTHING-BASED COMPRESSED STATE KF

   https://doi.org/10.1002/2016WR020168  

   Li, Y. J. ; Kokkinaki, Amalia ; Darve, Eric F. ; Kitanidis, Peter K. ( August 2017 , Water Resources Research)
5. Rate coefficients for rotational state-to-state transitions in H 2 O + H 2 O collisions for cometary and planetary applications, as predicted by mixed quantum-classical theory

   https://doi.org/10.1051/0004-6361/202245699  

   Mandal, Bikramaditya ; Babikov, Dmitri ( March 2023 , Astronomy & Astrophysics)

   Aims. We present new calculations of collision cross sections for state-to-state transitions between the rotational states in an H 2 O + H 2 O system, which are used to generate a new database of collisional rate coefficients for cometary and planetary applications. Methods. Calculations were carried out using a mixed quantum-classical theory approach that is implemented in the code MQCT. The large basis set of rotational states used in these calculations permits us to predict thermally averaged cross sections for 441 transitions in para- and ortho-H 2 O in a broad range of temperatures. Results. It is found that all state-to-state transitions in the H 2 O + H 2 O system split into two well-defined groups, one with higher cross-section values and lower energy transfer, which corresponds to the dipole-dipole driven processes. The other group has smaller cross sections and higher energy transfer, driven by higher-order interaction terms. We present a detailed analysis of the theoretical error bars, and we symmetrized the state-to-state transition matrixes to ensure that excitation and quenching processes for each transition satisfy the principle of microscopic reversibility. We also compare our results with other data available from the literature for H 2 O + H 2 O collisions. 

   more » « less