Results 11 to 20 of about 45 (44)

Surveyor and analyst biases in forest density estimation from United States Public Land Surveys

Ecosphere, Volume 14, Issue 8, August 2023., 2023
Abstract Accurate forest density estimates based on United States Public Land Surveys have long been questioned because of doubts about randomness of both the surveyors' selection of witness trees and the underlying tree dispersion. This study analyzes the surveyor sampling of witness trees in six Midwestern states in the mid‐1800s.
Charles V. Cogbill
wiley   +1 more source

Boosted backtracking search optimization with information exchange for photovoltaic system evaluation

Energy Science &Engineering, Volume 11, Issue 1, Page 267-298, January 2023., 2023
(1) An improved backtracking search algorithm with teaching and learning‐based optimization (TLBOBSA) is proposed to extract parameters of the photovoltaic system. (2) The performance of TLBOBSA is compared with some well‐known competitive algorithms. (3) TLBOBSA was evaluated under different irradiance levels and temperature levels.
Xuemeng Weng, Yun Liu, Ali Asghar Heidari, Zhennao Cai, Haiping Lin, Huiling Chen, Guoxi Liang, Abdulmajeed Alsufyani, Sami Bourouis   +8 more
wiley   +1 more source

Bit‐Sliced Implementation of SM4 and New Performance Records

IET Information Security, Volume 2023, Issue 1, 2023., 2023
SM4 is a popular block cipher issued by the Office of State Commercial Cryptography Administration (OSCCA) of China. In this paper, we use the bit‐slicing technique that has been shown as a powerful strategy to achieve very fast software implementations of SM4. We investigate optimizations on two frontiers. First, we present a more efficient bit‐sliced
Xin Miao, Lu Li, Chun Guo, Meiqin Wang, Weijia Wang, Tom Chen   +5 more
wiley   +1 more source

Methodology for Estimating the Cost of Construction Equipment Based on the Analysis of Important Characteristics Using Machine Learning Methods

Journal of Engineering, Volume 2023, Issue 1, 2023., 2023
This paper considers the current market pace, which requires a corresponding competitive advantage. This study forecasted the cost of heavy machinery depending on geolocation and essential characteristics by the field of activity. This study analyzes specific categories of heavy machinery for important price characteristics.
Nataliya Boyko, Oleksii Lukash, Weili Zeng   +2 more
wiley   +1 more source

Structure and Computation

Noûs, EarlyView.
ABSTRACT It is a truism of mathematics that differences between isomorphic number systems are irrelevant to arithmetic. This truism is deeply rooted in the modern axiomatic method and underlies most strands of arithmetical structuralism, the view that arithmetic is about some abstract number structure.
Balthasar Grabmayr
wiley   +1 more source

Exploring 2D Geometric Shape Classification Using AI‐Driven Feature Tables in Mathematics

School Science and Mathematics, EarlyView.
ABSTRACT This study explored the effectiveness of an AI‐integrated instructional task designed to enhance preservice teachers' understanding of the features and hierarchical relationships of 2D geometric shapes. Originally developed and tested in online K‐12 professional development settings, this intervention was adapted for in‐person preservice ...
Yasemin Gunpinar, Woonhee Sung
wiley   +1 more source

Weak, Strong and Mixed Extensions of Relations to Spaces of Ultrafilters

Mathematical Logic Quarterly, Volume 72, Issue 3, August 2026.
ABSTRACT The use of nonstandard methods to characterize properties of weak, strong and mixed extensions of congruences to ultrafilters has been the main topic of several recent papers, focused mostly on congruences and divisions. We show that similar methods can be used to extend these characterizations to arbitrary relations and their interplay.
Leonardo Raffaello Maximilian Gasparro, Lorenzo Luperi Baglini   +1 more
wiley   +1 more source

Thermal and Photocatalytic Conversion of CO2 to Ethanol: Advances in Catalyst Design, Challenges, and Opportunities

ChemSusChem, Volume 19, Issue 12, 26 June 2026.
This review examines thermo‐ and photocatalytic routes for converting CO2 to ethanol and analyzes how metal alloying, promoters, supports, surface structure, and semiconductor design govern catalyst activity, selectivity, and stability. It integrates mechanistic insights from experimental and theoretical studies and identifies the main challenges and ...
Bryan Rocano‐Merchan, Alejandro Cañete‐Arché, Asier Agrelo‐Lestón, Jonatan Perez‐Arce, Zoraida Freixa, Ander Centeno‐Pedrazo, Max García‐Melchor, Eduardo J. Garcia‐Suarez   +7 more
wiley   +1 more source

The motive of the Hilbert scheme of points in all dimensions

Proceedings of the London Mathematical Society, Volume 132, Issue 3, March 2026.
Abstract We prove a closed formula for the generating series Zd(t)$\mathsf {Z}_d(t)$ of the motives [Hilbd(An)0]$[\operatorname{Hilb}^d({\mathbb {A}}^n)_0]$ in K0(VarC)$K_0(\operatorname{Var}_{{\mathbb {C}}})$ of punctual Hilbert schemes, summing over n$n$, for fixed d>0$d>0$.
Michele Graffeo, Sergej Monavari, Riccardo Moschetti, Andrea T. Ricolfi   +3 more
wiley   +1 more source

Ultrafast Adhesion/Friction Bidirectionally Switchable Control by Vibration

Advanced Functional Materials, Volume 36, Issue 8, 26 January 2026.
Bioinspired gradient smooth architectures enable vibration‐switchable adhesion/friction with 62.02 kPa adhesion strength, 131.57 kPa shear strength, tilt angles ≥ 3°, roughness ≥ Ra 0.8 µm, 400 Hz antivibration robustness, and dual‐mode control. The synergy of geometry optimization and vibration modulation tuning bridges multidomain adaptability and ...
Jian Chen, Wenjie Chen, Mengmeng Zhao, Xingyu Jiang, Xiaolei Zhu, Xinran Xu, Jiahui Zhao, Yezhong Tang, Stanislav N Gorb, Keju Ji, Zhendong Dai   +10 more
wiley   +1 more source