Results 141 to 150 of about 3,408 (247)

Aligning Initial Conditions With Long‐Term Model Dynamics to Enhance 4DVar‐Driven Medium‐Range Global Forecasts

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Applying the four‐dimensional variational (4DVar) method in nonlinear systems faces conflicts between a lack of long‐term dynamical information using a short assimilation window and a trap of local minima using a long window. Here, an adjusted analysis approach that incorporates a thought of pseudo‐orbit analysis adjusting into 4DVar was ...
Shujun Zhu, Bin Wang, Lin Zhang, Juanjuan Liu, Yongzhu Liu, Jiandong Gong, Lijuan Li, Shiming Xu, Yong Wang, Wenyu Huang, Li Liu, Yujun He, Lan Xu, Jilin Wang   +13 more
wiley   +1 more source

An improved adjoint method for design of microwave devices with 3D finite elements / [PDF]

, 1999
A numerical method is described for determining the derivatives of the scattering parameters of an arbitrary 3D microwave device with respect to changes in model geometry.
Akel, Hatem.
core  

Ensemble‐Based Assimilation of Sounding Observations With AI Weather Models

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract The artificial intelligence (AI)‐based weather models have shown great promise for weather forecasts. But they rely on the initial conditions provided by traditional paradigm of numerical weather prediction, which has a cycled data assimilation (DA) to combine short‐term forecasts and observations.
Huifeng Huang, Lili Lei, Zhe‐Min Tan
wiley   +1 more source

Non-Parametric Kinematic Optimization of Flapping Foil Propulsion Using a Discrete Adjoint Method. [PDF]

Biomimetics (Basel)
Yin Z, Zhou C, Wang X, Liao X, Wang J.
europepmc   +1 more source

Full-space inverse-designed meta-optics for complex vector field shaping of intracavity landscapes. [PDF]

Light Sci Appl
Xu M, Sang D, Pu M, Gao P, Zhao B, Zheng Y, Zeng Q, Chen L, Zhang F, Guo Y, Li X, Ma X, Fu Y, Luo X.   +13 more
europepmc   +1 more source

Fast Numerical Solvers for Parameter Identification Problems in Mathematical Biology. [PDF]

J Sci Comput
Benková K, Pearson JW, Ptashnyk M.
europepmc   +1 more source

Inverse design and 3D printing of a multiport microwave power splitter: a scalable electromagnetic design framework. [PDF]

Commun Eng
Zolfaghary Pour S, Zhang H, Liu PW, Arigong B.   +3 more
europepmc   +1 more source

Fractional-order analysis of a fear-induced ecoepidemiological predator-prey model with optimal control and bifurcation dynamics. [PDF]

Sci Rep
Alomari FAH, Bahaa GM.
europepmc   +1 more source

Uniform 2D Target Generation via Inverse-designed Metasurfaces. [PDF]

IEEE J Sel Top Quantum Electron
Zhou Y, Chen YS, Zhao Y.
europepmc   +1 more source

Adjoint-based PDE-constrained optimization of viscoelastic floating membrane for maximum wave power absorption. [PDF]

Struct Multidiscipl Optim
El Sayed K, Agarwal S, Metrikine A, Colomés O.   +3 more
europepmc   +1 more source