Results 21 to 30 of about 246 (135)
Research on Productivity Evaluation Method Based on Shale Gas Well Early Flow Stage Data
Geofluids, Volume 2023, Issue 1, 2023., 2023 Since the accurate early gas well production regime is related to the production period and final productivity, it is crucial to make better use of early flow stage production data for gas well productivity evaluation. Absolute open flow potential (AOF) and estimated ultimate recovery (EUR) are essential parameters for evaluating the productivity of ...
Yize Huang +9 more
wiley +1 more source
Transient Dynamics of a Food Chain Model with Vigilance in the Biparameter Spaces
Complexity, Volume 2023, Issue 1, 2023., 2023 This article focuses on the asymptotic and transient behavior of a food chain model with vigilance in the biparameter spaces. Firstly, the local asymptotic stability conditions of the positive equilibrium point are obtained. Then, the transient dynamical behavior of the positive equilibrium point is analyzed based on eight parameters.
Min Wu, Daniel Oro
wiley +1 more source
Flow-plate interactions: Well-posedness and long-time behavior [PDF]
, 2013 We consider flow-structure interactions modeled by a modified wave equation coupled at an interface with equations of nonlinear elasticity. Both subsonic and supersonic flow velocities are treated with Neumann type flow conditions, and a novel treatment ...
Chueshov, Igor +2 more
core +1 more source
Role of A‐Site Composition in Charge Transport in Lead Iodide Perovskites
Advanced Energy and Sustainability Research, Volume 3, Issue 11, November 2022., 2022 The electronic properties of metal halide perovskites are measured with time‐resolved microwave conductivity, as a function of A‐site composition. It is found that a small percentage of Cs leads to a larger carrier mobility and lifetime and that compositions with a tolerance factor close to 0.9 generally show lower performance than those closer to 0.8 ...
Min Ji Hong, John G. Labram
wiley +1 more source
Spectrum of quasistable states in a strong microwave field [PDF]
Physical Review A, 2014 When atoms are exposed to intense laser or microwave pulses ~10% of the atoms are found in Rydberg states subsequent to the pulse, even if it is far more intense than required for static field ionization. The optical spectra of the surviving Li atoms in the presence of a 38 GHz microwave field suggest how atoms survive an intense pulse.
Arakelyan, A. +3 more
openaire +2 more sources
The moduli space of quasistable spin curves
Collectanea Mathematica, 2022 We study a compactification of the moduli space of theta characteristics, giving a modular interpretation of the geometric points and describing the boundary stratification. This space is different from the moduli space of spin curves. The modular description and the boundary stratification of the new compactification are encoded by a tropical moduli ...
Abreu, Alex +2 more
openaire +2 more sources
Breathing Dissipative Soliton Molecule Switching in a Bidirectional Mode‐Locked Fiber Laser
Advanced Photonics Research, Volume 3, Issue 4, April 2022., 2022 The transient switching dynamics of breathing soliton molecules (BSMs) are explored in a bidirectional ultrafast fiber laser, specifically triggered at different parameter spaces of saturable absorption with manipulation polarization. The all‐optical switching of breather molecules of two or three solitons with different binding temporal separation has
Yi Zhou +3 more
wiley +1 more source
Point-form dynamics of quasistable states [PDF]
Journal of Mathematical Physics, 2013 We present a field theoretical model of point-form dynamics which exhibits resonance scattering. In particular, we construct point-form Poincaré generators explicitly from field operators and show that in the vector spaces for the in-states and out-states (endowed with certain analyticity and topological properties suggested by the structure of the S ...
Gadella, M. +3 more
openaire +2 more sources
Polarimetric Direction of Arrival Estimations Based on Adaptive Linear Time‐Frequency Transforms
Wireless Communications and Mobile Computing, Volume 2022, Issue 1, 2022., 2022 A spatially polarized time‐frequency distribution (SPTFD) based on dual‐polarized double‐fed antenna arrays is adapted to deal with polarization‐unstable signals. A linear time‐frequency (TF) representation was used for an instantaneous frequency (IF) estimate, primarily due to its simplicity and immunity to cross‐interference. Using a set of linear TF
Shao Shuai +4 more
wiley +1 more source
Minimal matchings of point processes [PDF]
, 2022 Suppose that red and blue points form independent homogeneous Poisson processes of equal intensity in R-d. For a positive (respectively, negative) parameter gamma we consider red-blue matchings that locally minimize (respectively, maximize) the sum of ...
Holroyd, Alexander E. +2 more
core +2 more sources