Results 31 to 40 of about 113 (112)

On the Existential Theory of the Completions of a Global Field

Mathematische Nachrichten, EarlyView.
ABSTRACT We discuss the common existential theory of all or almost all completions of a global function field.
Philip Dittmann, Arno Fehm
wiley   +1 more source

Unveiling New Perspectives on the Hirota–Maccari System With Multiplicative White Noise

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT In this study, we delve into the stochastic Hirota–Maccari system, which is subjected to multiplicative noise according to the Itô sense. The stochastic Hirota–Maccari system is significant for its ability to accurately model how stochastic affects nonlinear wave propagation, providing valuable insights into complex systems like fluid dynamics
Mohamed E. M. Alngar, Khaled A. Gepreel, Reham M. A. Shohib, Yakup Yildirim   +3 more
wiley   +1 more source

Uncertainty, Sensitivity, and Efficiency Analysis of a Hybrid Piezoelectric–Electromagnetic Energy Harvester

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Digitalization and emerging technologies are increasing the demand for wireless sensing and the Internet of Things (IoT), which provide opportunities for autonomous sources of electricity in the form of energy harvesting systems. This paper focuses on the challenges in hybrid piezoelectric‐electromagnetic kinetic energy harvesting systems that
Petr Sosna, Damian Gaska, Zdeněk Hadaš
wiley   +1 more source

Robust Position Control of an Electro‐Hydraulic Actuator via Metaheuristic Optimization of a Fractional‐Order PID Controller

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT In this study, a robust position control strategy is presented for a two‐stage electro‐hydraulic actuator system using a fractional‐order proportional–integral–derivative (FOPID) controller tuned by Kirchhoff's law algorithm (KLA). Electro‐hydraulic systems exhibit strong nonlinearities, parameter uncertainties, and external disturbances ...
Ridvan Firat Cinar, Davut Izci, Serdar Ekinci, Mohammad Salman, Mohammad Al‐Rabayah, Ali Akdagli, Ali Yildiz, Filiz Karaomerlioglu, Gökhan Yüksek   +8 more
wiley   +1 more source

High‐Speed Rail and Spatial Equity: Unpacking the Sustainability Paradox of Land Use and Fiscal Pressure in County‐Level Cities

Sustainable Development, EarlyView.
ABSTRACT Infrastructure‐led development in rapidly urbanizing economies often generates accessibility gains that fail to translate into balanced urban outcomes, particularly when local fiscal institutions redirect those gains toward revenue‐generating land uses. Filling this gap, especially in fiscally constrained county‐level cities where land finance
Ming Xie, Xiaoxiao Liao, Zhenlin Xie
wiley   +1 more source

The Macro Vulnerabilities to the Clean Energy Transition: An Empirical Assessment

Sustainable Development, EarlyView.
ABSTRACT The macro environment is one of the analytical levels of the multilevel transition perspective that has the potential to shape the clean energy transition. Following the Political, Economic, Social and Technological (PEST) framework, the present study analyzes the paths by which these four macro dimensions jointly shape wind, solar, and ...
Helena Dominguez‐Torres
wiley   +1 more source

Key Technical Fields and Future Outlooks of Space Manipulators: A Survey

SmartBot, EarlyView.
This paper systematically reviews the technological development of space manipulators, emphasizing the unique challenges posed by space environments. It examines four areas: structural design, modeling, planning, and control, while introducing typical ground test platforms.
Gang Chen, Zeyuan Huang, Ying Yan, Xiaokang An, Zhikai Zhao, Jirong Lin, Xiangrong Zhao, Xianyuan Gao, Junyi Zong, Xuewen Jia, Zhipeng Yao, Jianliang Liao, Ning Ji   +12 more
wiley   +1 more source

Active pH Modulation by Proton Channel‐Peptide Nucleic Acid Complex for Effective siRNA Endosomal Escape

Small, EarlyView.
A bioinspired siRNA nanocarrier is engineered by integrating an influenza A M2 proton channel with siRNA through a peptide nucleic acid linker on liposome surfaces. Active proton transport amplifies osmotic stress within endosomes, triggering membrane rupture and cytosolic release.
Seongmin Ga, Nam Hyeong Kim, Si Yeon Ryu, Kyeonghyun Kim, Eun Sung Kang, Hayeon Bae, Seungmin Ryu, Suhyeon Kim, Yeontae Jang, Bok‐Soo Lee, Jiyoung Nam, Minah Suh, Jaecheol Lee, Seung‐gu Kang, Jaekyung Hyun, Huong T. Kratochvil, Yong Ho Kim   +16 more
wiley   +1 more source

Creating a Masterpiece. The Road to (and Beyond) Woodward and Hoffmann's 1969 Angewandte Chemie Treatise

The Chemical Record, EarlyView.
This publication describes how R. B. Woodward and Roald Hoffmann crafted their masterpiece publications. Illustrations include Woodward's first draft of the famous “Violations There are none. Nor can violations be expected of so fundamental a principle of maximum bonding.” Original but discarded text shows the stepwise paths toward the W‐H masterpieces.
Jeffrey I. Seeman
wiley   +1 more source

Stability Modelling and Analysis of an Integrated Wind‐PV‐Storage Power System: A Small‐Signal Approach Using Multi‐Coordinate System Consistency Transformation

Energy Internet, EarlyView.
ABSTRACT With growing energy demand and depletion of fossil fuels, renewable energy development is crucial for achieving dual‐carbon goals. This paper focuses on small‐signal modelling and stability analysis of a grid‐connected wind‐PV‐storage system.
Puyu Wang, Pengyu Bo, Xujie Tang, Wu Tong, Yibo Wang, Xiance Zhu, Zhiyu Cao, Xiao‐Ping Zhang   +7 more
wiley   +1 more source