Results 81 to 90 of about 1,768 (208)

Mechanical Analysis of Tubular in High Temperature and High Pressure Well Considering Buckling and Friction

Shiyou jixie, 2020
The mechanical behavior of the testing string in high temperature and high pressure directional well is complex and the failure problem is prominent, involving a series of factors such as temperature, pressure, well trajectory, string buckling and ...
石小磊, 黄文君, 高德利
doaj  

Balancing Exploration and Exploitation Through a Sequential Hybrid of Roach Infestation and Mayfly Algorithms for Constrained Engineering Design Optimization

AI &Innovation, EarlyView.
ABSTRACT Maintaining an effective balance between exploration and exploitation is essential during optimization processes, from mathematical functions to more complex problems such as constrained engineering design optimization, particularly when addressing highly nonlinear issues with numerous local optima and strict feasibility requirements.
Enrique Lizárraga, Fevrier Valdez, Oscar Castillo, Patricia Melin   +3 more
wiley   +1 more source

Research on the Behavior of Coiled Tubing Running Based on Experiment

Shiyou jixie, 2018
The coiled tubing is subject to complex forces in downhole condition. The loads like gravity, liquid resistance, bending moment and torque, and environmental factors such as temperature and pressure make the coiled tubing prone to buckling during running.
Qin Hua, An Chen, Zhou Chuanxi, Liu Shaohu, Cheng Ziyun, Duan Menglan   +5 more
doaj  

Reusing depleted oil and gas wells for geothermal energy: Feasibility, challenges, and a decision‐making framework for sustainable conversion

Deep Underground Science and Engineering, EarlyView.
The graphical abstract presents a structured decision‐support framework for assessing the feasibility of converting depleted oil and gas wells into geothermal energy systems. The left panel illustrates a comprehensive, multi‐stage decision‐making framework progressing from prefeasibility screening and technical–economic analysis to policy alignment ...
Karolina Bieryt, Yu Pan, Heinz Konietzky, Fei Wang   +3 more
wiley   +1 more source

Surrogate‐Based Time‐Continuous Seismic Fragility Assessment of Corrosion‐Deteriorated Reinforced Concrete Bridges Under Climate Change

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Seismic fragility assessment of reinforced concrete (RC) bridges exposed to corrosive environments must reliably capture time‐dependent deterioration impacts. Climate change compounds this challenge through nonstationary temperature and humidity variations that accelerate bridge corrosion.
Yexiang Yan, Yazhou Xie
wiley   +1 more source

Programmable crack dynamics engineering enables flexible strain sensors with high linearity

FlexMat, EarlyView.
First‐decoupling theoretical framework of crack evolution elucidating the control methods, mechanistic insights, and structure‐activity relationships is established. Crack propagation from uncontrollable randomness systematically evolves into spatially ordered states.
Chunjin Wu, Shaolong Wang, Xu Wang, Heng Zhu, Yongliang Tian, Xinchen Jiang, Xin Rao, Yutong Han, Changrun Wang, Wen‐Yong Lai   +9 more
wiley   +1 more source

Simulation Study on Dynamic Process of Casing Running in Complex Long Openhole

Shiyou jixie, 2019
Casing running in long open-hole horizontal wells with complex well trajectory and high frictional resistance may withstand great resistance and could not reach the predetermined depth.
Wang Xuegang, Lin Tiejun, Wu Yanxian, Song Lin, Li Zhaoyang, Zhang Qiang   +5 more
doaj  

Recent advances in multifunctional soft robots: A materials–structures–systems co‐design perspective for synergistic integration

FlexMat, EarlyView.
Abstract Soft robots, engineered from highly compliant materials, offer superior adaptability and safety in unstructured environments compared to their rigid counterparts. Recent advancements, fueled by bio‐inspiration and material programmability, have led to the rapid co‐evolution of their core modules: actuation, sensing, protection, energy, and ...
Qiulei Liu, Zicao Peng, Chong Sun, Haitao Yang   +3 more
wiley   +1 more source

Structural design and 3D printing of flexible integrated electronic systems

FlexMat, EarlyView.
This review provides a comprehensive overview of design and integration strategies for individual components in flexible electronics, highlights the 3D‐printing fabrication techniques, and discusses recent advances in system‐level integration and their applications in real‐time monitoring and intelligent robotics.
Jiani Gong, Jiaying Wang, Changsong Shi, Chi Guo, Songze Fu, Jie Tao, Xiaolong Chen, Yunfei Chen, Zhiyang Lyu   +8 more
wiley   +1 more source

Fabrication of flexible composite electrodes and their application in flexible supercapacitors for wearable electronic devices

FlexMat, EarlyView.
This review surveys current progress in composite flexible electrodes for flexible supercapacitors, emphasizing how structural engineering and material synergy enhance both mechanical compliance and electrochemical performance. It discusses fabrication strategies, emerging application scenarios, and ongoing challenges, offering updated insights that ...
Weikang Wang, Qing Liu, Ang Lv, Shuai Zhou, Chunlei Zhang, Luping Zhang, Liming Li, Weiwei Zhao, Yuchun Tang, Fei Huang   +9 more
wiley   +1 more source