Results 141 to 150 of about 365,668 (292)

Experimental Study on Wear Mechanism of Corrosion-resistant Alloy Casing

Shiyou jixie, 2018
The issue of friction and wear between casing and drilling tool joints has become increasingly prominent. a thorough understanding of the wear mechanism is very important.
Tang Wei, Liu Baowei, Li Jibiao, Guan Wentao   +3 more
doaj  

Suppressing Photothermal Artifacts in Flexible Fluorescent Fiber‐Optic Sensors for Accurate and Precise In Situ Temperature Monitoring

Advanced Science, EarlyView.
A partial‐inner‐cladding optical fiber (PICOF) is developed to suppress photothermal artifacts in fluorescent fiber‐optic thermometry by isolating the sensing layer from regions prone to photothermal effects. This structural design strategy enables high‐fidelity operation at elevated excitation power, achieving high accuracy (maximum absolute error ...
Sijie Su, Jinjian Yu, Pengyuan Dong, Xin Wang, Jing Lyu, Jiulin Gan, Enhai Song, Qinyuan Zhang   +7 more
wiley   +1 more source

Spatiotemporal Regulation of Hierarchical Assembly of Hydroxyapatite for Enamel Remineralization

Advanced Science, EarlyView.
Biomimetic repair exhibits unique advantages for enamel regeneration compared with conventional clinical treatments. An enzymatic mineralization system (EMS) is developed, where the resulting HAP nanorods hierarchically assemble into a highly ordered structure on the enamel surface through the spatiotemporal modulation of interfacial energies of ...
Zhenhang Tang, Zhisen Zhang, Yuanyu Zhou, Wenzhi Wu, Congrui Zhao, Chang Liu, Tong Shi, Wenjing Jin, Zhaoming Liu, Weifeng Fang, Qingyun Lin, Yi He, Zhijian Xie, Ruikang Tang, Changyu Shao, Zhuo Chen   +15 more
wiley   +1 more source

Wafer‐Scale Dendritic Nanoporous Platinum Films for Neural Electrodes

Advanced Science, EarlyView.
Wafer‐scale dendritic nanoporous platinum films with intrinsic nanoscale porosity are synthesized by suraface‐confined wet chemistry and transferred onto flexible substrates to create tissue‐conformal neural electrodes. The ultrathin films combine mechanical flexibility with electrochemical stability, enabling low‐impedance, high‐capacitance interfaces
Kyeongbin Kang, Joosung Oh, Soumen Dutta, Sun Woo Jang, Byeong Su Gu, Woosung Cho, Mingyu Kwak, Sunguk Hong, Seongjae Lee, Hyo Kyoung Jeon, Juwan Han, Keehoon Kim, Sung‐Min Park, Unyong Jeong, In Su Lee   +14 more
wiley   +1 more source

Mitochondrial Quality Control in Degenerative Musculoskeletal Diseases: Signaling Networks and Therapeutic Landscapes

Advanced Science, EarlyView.
Mitochondrial quality control (MQC) collapse redefines osteoarthritis, intervertebral disc degeneration, and osteoporosis as disorders of organelle dysfunction. Damaged mitochondria leak mtDNA and metabolites, driving cGAS‐STING inflammation, epigenetic reprogramming, and metabolic memory.
Haiyang Gao, Zhangrong Cheng, Xianglong Chen, Wenbo Wu, Wang Wu, Zimu Yu, Cao Yang, Yukun Zhang   +7 more
wiley   +1 more source

Recent Advances in High‐Entropy Nanozymes: From Fabrication to Applications

Advanced Science, EarlyView.
To highlight key achievements and clarify the current landscape of high‐entropy nanozymes (HEAzymes), this review summarizes state‐of‐the‐art developments ranging from thermodynamically and kinetically controlled synthetic strategies; enzyme‐like catalytic types, catalytic characteristics, and underlying mechanisms; to their antioxidative, therapeutic,
Yongjian Ai, Weibo Zhang, Pengjie Wang, Wentao Xu, Huiyuan Guo, Hong‐bin Sun, Meng‐Qi He, Fazheng Ren, Qionglin Liang   +8 more
wiley   +1 more source

Wear and fretting in corrosive atmospheres at ultra-high temperature using an SRV tribometer test rig [PDF]

- DLR Institute for Test and Simulation of Gas Turbines: wear and fretting under harsh environments - from real world applications to lab scale: SRV testbench - Co-alloys for high temperature applicatiions: preliminary findings - Tribology at DLR-SG ...
Beau, Patrick, Kind, Nora
core  

Mechanism of Direct Acoustic Construction and Gradient Properties Tuning

Advanced Science, EarlyView.
Directed acoustic construction enables omnidirectional gradient tuning of fingerprint‐inspired microstructures. By investigating the DAC mechanisms, diamond particles are found to enhance acoustic physical, mechanical, and chemical effects, promoting acoustic curing and broadening the range of gradient property tuning.
Dandan Wu, Lijuan Zheng, Guang Yao, Zijun Liu, Liyan Luo, Cile Liang, Chengyong Wang   +6 more
wiley   +1 more source

Formation‐Stage Interfacial Regulation of δ‐MnO2 Enables Stable and Reversible Aqueous Zn‐Ion Storage

Advanced Science, EarlyView.
Precursor‐embedded Fe regulates the nucleation and growth of δ‐MnO2, enabling a more accessible and stable Zn‐storage interface with accelerated kinetics and suppressed Mn dissolution, while preserving the intrinsic Mn redox chemistry. ABSTRACT Layered δ‐MnO2 is a promising cathode for aqueous zinc‐ion batteries, yet its practical application remains ...
Fanghua Liang, Ling Wang, Junpeng Xiong, Chunqing Niu, Atsuya Kawai, Wei Zhang, Chunhong Zhu, Azeem Ullah, Mayakrishnan Gopiraman, Mingzheng Ge, Ick Soo Kim   +10 more
wiley   +1 more source

Gradient‐Oxidized Bacterial Cellulose for Self‐Sustained Soil Moisture Sensing

Advanced Science, EarlyView.
An asymmetric encapsulated bacterial cellulose device integrates a gradient‐oxidized BC framework with a LiCl‐doped Ecoflex hygroscopic layer, enabling self‐powered soil moisture monitoring through directional ion transport. The device sustains stable hydrovoltaic output, supports deep‐learning humidity classification, and fully biodegrades in soil ...
Nan Zhou, Jing Li, Xiang Xu, Senyuan Ye, Bin Chen, Shuang Wu, Duo Xu, Keshuai Liu, Chong Gao, Weilin Xu, Can Ge   +10 more
wiley   +1 more source