Results 81 to 90 of about 2,188,345 (345)

Extrusion deformation estimation method of oil and gas string basedon AIC-RBF

You-qi chuyun, 2021
It is difficult to measure the deformation of oil and gas strings affected by the ground movement for a long time. In order to solve this problem, an inversion algorithm for extrusion deformation estimation of oil and gas strings based on pulsed eddy ...
Xuanyong ZHOU, Banteng LIU, Fei XU, Ying ZHOU, Hexin LYU, Shuyue CHEN   +5 more
doaj   +1 more source

Machine Learning Accelerated Computational Design of Bio‐Inspired Catalysts in the Nitrogen Reduction Reaction

Advanced Materials, EarlyView.
We introduce a computational workflow that combines quantum chemical calculations and machine learning techniques to predict the catalytic performance of a wide range of catalysts in the nitrogen reduction reaction (NRR). The analysis of the trained models provides insights into the complex structure–activity relationship in experimental catalytic ...
Leonardo Di Ciano, Zihan You, Haoran Chen, Qifan Zhong, Rong‐Zhen Liao, Shaoqi Zhan   +5 more
wiley   +1 more source

Zielonka's Recursive Algorithm: dull, weak and solitaire games and tighter bounds [PDF]

Electronic Proceedings in Theoretical Computer Science, 2013
Dull, weak and nested solitaire games are important classes of parity games, capturing, among others, alternation-free mu-calculus and ECTL* model checking problems. These classes can be solved in polynomial time using dedicated algorithms.
Maciej Gazda, Tim A.C. Willemse
doaj   +1 more source

Characterization of Droplet Formation in Ultrasonic Spray Coating: Influence of Ink Formulation Using Phase Doppler Anemometry and Machine Learning

Advanced Materials Technologies, EarlyView.
This study explores how machine learning models, trained on small experimental datasets obtained via Phase Doppler Anemometry (PDA), can accurately predict droplet size (D32) in ultrasonic spray coating (USSC). By capturing the influence of ink complexity (solvent, polymer, nanoparticles), power, and flow rate, the model enables precise droplet control
Pieter Verding, Danny E. P. Vanpoucke, Yunus T. Aksoy, Tobias Corthouts, Maria R. Vetrano, Wim Deferme   +5 more
wiley   +1 more source

Polynomial time algorithm for solving k-coverage problem in wireless sensor networks

Dianxin kexue, 2017
How to solve the k-coverage problem,which was divided into worst-case and best-case,inside the two-dimensional target area in wireless sensor networks was explored,and a polynomial time algorithm for solving this problem was put forward.In this algorithm,
Qi WANG, Zheng’an XIAO, Huaixing WANG
doaj   +2 more sources

Critical Slowing Down in Polynomial Time Algorithms [PDF]

Physical Review Letters, 2001
4 pp., 3 ...
openaire   +3 more sources

Broadband angle of arrival estimation methods in a polynomial matrix decomposition framework

, 2013
A large family of broadband angle of arrival estimation algorithms are based on the coherent signal subspace (CSS) method, whereby focussing matrices appropriately align covariance matrices across narrowband frequency bins.
Mohamed Alrmah, Weiss, Stephan, Stephan Weiss, Mostafa Kaveh, Sangarapillai Lambotharan, McWhirter, John G., Lambotharan, Sangarapillai, Alrmah, Mohamed, Kaveh, Mostafa, John G. McWhirter   +9 more
core   +1 more source

The Influence of Mesoscale Particle Structure on the Electrode Degradation and Resultant Electrochemistry of Lithium Ion Cells With Nickel Rich Lithium Nickel Manganese Cobalt Oxide Positive Electrodes

Advanced Materials Technologies, EarlyView.
Milled polycrystalline NMC811 cathode (MPC NMC) with smaller secondary particle and higher surface area had 1) greater cathode tortuosity, 2) reduced surface Ni on the cycled MPC cathodes consistent with surface reconstruction, and 3) increased Ni deposition from cathode‐anode crosstalk, manifesting in lower functional capacity and higher impedance ...
Edelmy J. Marin Bernardez, Andrew Nicoll, David J. Arnot, Armando Rodriguez Campos, Patrick J. Barry, Marie F. Millares, Cynthia Huang, Melissa A. Guercio, Grace K. Dono, Alexis Pace, Xianghui Xiao, Cherno Jaye, Conan Weiland, Jianming Bai, Hui Zhong, Michael Drakopoulos, Zhong Zhong, Nghia T. Vo, Xiao Tong, Esther S. Takeuchi, Amy C. Marschilok, Shan Yan, Kenneth J. Takeuchi   +22 more
wiley   +1 more source

On search, decision, and the efficiency of polynomial-time algorithms

Journal of Computer and System Sciences, 1989
Recent advances in well-quasi-order theory have troubling consequences for those who would equate tractability with polynomial-time complexity. In particular, there is no guarantee that polynomial-time algorithms can be found just because a problem has been shown to be decidable in polynomial time.
Michael R. Fellows, Michael A. Langston
openaire   +1 more source

Graphene‐Interfaced Stretchable Sweat Patch for Multiplexed Electrochemical Monitoring of IL‐6, Glucose, and Calcium Ions

Advanced Materials Technologies, EarlyView.
Flexible sweat sensor patch integrating graphene‑interfaced gold microelectrodes functionalized with bio‑receptors and ion‑selective membrane, coupled with a capillary‑driven microfluidic layer and portable potentiostat electronics for multiplexed monitoring of inflammatory, metabolic, and electrolyte biomarkers in microliter sweat volumes.
Roomia Memon, Ali Tufani, Süleyman Çelik, Javed H. Niazi, Anjum Qureshi   +4 more
wiley   +1 more source