Results 131 to 140 of about 621,582 (323)

Hopf-type estimates for solutions to Hamilton-Jacobi equations with concave-convex initial data

Electronic Journal of Differential Equations, 2003
We consider the Cauchy problem for the Hamilton-Jacobi equations with concave-convex initial data. A Hopf-type formula for global Lipschitz solutions and estimates for viscosity solutions of this problem are obtained using techniques of multifunctions ...
Nguyen Huu Tho, Tran Duc Van
doaj  

Electrolyte‐Jet 3D Printing of Copper‐Based Strain Sensors for Physiological Signal Monitoring and Robotic Manipulation

Advanced Materials Technologies, EarlyView.
Electrolyte‐jet (EJ) 3D printing turns copper ions into precisely arranged copper microspheres, which combine with flexible polymers and carbon nanomaterials to create durable, high‐sensitivity sensors. These sensors accurately monitor human motion and physiological signals. Real‐time robotic hand control via gesture mirroring demonstrates an intuitive
Wending Gu, David Payne, Binesh Puthen Veettil   +2 more
wiley   +1 more source

On the Determination of Lagrange Multipliers for a Weighted LASSO Problem Using Geometric and Convex Analysis Techniques. [PDF]

Appl Math Optim
Giacchi G, Milani B, Franceschiello B.
europepmc   +1 more source

Generalized Structured Component Analysis Accommodating Convex Components: A Knowledge-Based Multivariate Method with Interpretable Composite Indexes [PDF]

Gyeongcheol Cho, Heungsun Hwang
openalex   +1 more source

Additive Manufacturing of Negative Thermal Expansion Metamaterials Using Steels

Advanced Materials Technologies, EarlyView.
Architected lattices with tunable negative thermal expansion are fabricated from common steels using laser powder bed fusion metal additive manufacturing. Optimized multimaterial interfaces and geometry‐driven design produce robust, defect‐minimized structures that remain dimensionally stable up to 300 °C, enabling scalable solutions for thermal ...
Devashish Dubey, Eskandar Fereiduni, Mohamed A. Elbestawi, Mehedi H. Mahfuz, Ryan B. Berke   +4 more
wiley   +1 more source

Design and Fabrication of High Dielectric GRIN Lens for a Directive Antenna Using a Hybrid Filled Voxel Additive Manufacturing Technique

Advanced Materials Technologies, EarlyView.
Hybrid‐filled voxel AM enables integration of high‐permittivity materials into additively manufactured devices. Using this approach, a graded refractive index (GRIN) lens is demonstrated, achieving a 50% antenna size reduction with enhanced directivity.
Qianfang Zheng, Anna Radkovskaya, Kailun Xu, Ekaterina Shamonina, Patrick S. Grant   +4 more
wiley   +1 more source

B-spline contour reconstruction algorithm based on image contour concavity and convexity. [PDF]

Sci Rep
Wang B, Li Y, Sun C, Ma S, Chen J.
europepmc   +1 more source

Advanced Emissivity Tuning Via Femtosecond Laser Surface Engineering

Advanced Optical Materials, EarlyView.
Femtosecond laser surface processing (FLSP) is employed to fabricate titanium‐based metamaterials with engineered micro/nano‐scale features that exhibit spectrally selective and omnidirectional thermal emissivity. By integrating advanced ellipsometry, electromagnetic modeling, and compositional analysis, the work reveals resonance‐driven emissivity ...
Zahra Kamali Khanghah, Andrew Butler, Andrew Reicks, Juveriya Parmar, Eva Schubert, Craig Zuhlke, Mathias Schubert, Ufuk Kilic, Mohammad Ghashami   +8 more
wiley   +1 more source

NG2-Glia Heterogeneity Across Cortical Layers. [PDF]

Glia
Barriola S, Delgado-García LM, Ojalvo-Sanz AC, Pernia-Solanilla C, Figueres-Oñate M, López-Mascaraque L.   +5 more
europepmc   +1 more source

Theoretical analysis of the randomized subspace regularized Newton method for non-convex optimization [PDF]

Terunari Fuji, Pierre‐Louis Poirion, Akiko Takeda   +2 more
openalex   +1 more source