Results 61 to 70 of about 17,027 (265)

Experience in ensuring the strength of the supporting structures of locomotives and electric multiple units

Вестник Научно-исследовательского института железнодорожного транспорта, 2019
To ensure fatigue strength of metal structures in mechanical engineering, various approaches are practiced. One of them allows for the appearance of cyclic stresses in details with amplitudes exceeding the fatigue limit.
V. V. KOCHERGIN, A. A. BUKHANTSEV, I. G. PANKRATOVA, O. A. RUSANOV   +3 more
doaj   +1 more source

Surface‐Spin‐Induced Magnetic Loss Enhancement in Ultralight Electromagnetic Absorbers

Advanced Science, EarlyView.
Fe3O4 nanoparticles with different hollow rates were synthesized to demonstrate the key role of surface moment in magnetic loss process. Using the same volume filling ratio, the 54.1% hollow Fe3O4 absorber represents about 20% enhancement in the imaginary part (μ'') than solid particles due to the coexisting magnetic resonance of inside and outside ...
Ruimin Ren, Ke Yang, Chichong Lu, Song Ma, Bowen Zheng, Zhenhui Ma   +5 more
wiley   +1 more source

EpCAM+ Extracellular Vesicle PD‐L1 Dynamics as a Predictive Biomarker of Immune Checkpoint Blockade Response

Advanced Science, EarlyView.
A highly sensitive SERS‐based platform measures PD‐L1 expression on EpCAM+ circulating EVs from cancer patients undergoing immunotherapy. Monitoring dynamic changes after treatment reveals that reduced EpCAM+ EV PD‐L1 levels associate with improved long‐term clinical outcomes, establishing a non‐invasive approach for tracking immune checkpoint ...
Byeonggeol Mun, Jinyoung Kim, Chang Gon Kim, Seokhyeong Go, Mina Han, Yujin Ouck, Soojin Jang, Seong Uk Son, Gamin Kim, Wonrak Son, Eunjung Kim, Min Hee Hong, Ja Hyun Yeo, Eun‐Kyung Lim, Hye Ryun Kim, Seungjoo Haam   +15 more
wiley   +1 more source

Solvent Oxidation‐Directed Synthesis of Highly Crystalline Iron Oxide Nanoparticles With Near‐Bulk Magnetization

Advanced Science, EarlyView.
Controlled oxidation of benzyl ether is established as a key synthetic parameter in the thermal decomposition of iron(III) acetylacetonate. Oxygenated solvent species alter precursor coordination and nucleation–growth kinetics, producing highly crystalline, magnetite‐rich nanoparticles with tunable size, controlled morphology, and near‐bulk ...
Lukas Hertle, Valentin Gantenbein, Joaquim Llacer‐Wintle, Mingchen Ma, Ziyu Li, Pu Luo, Zhengwei Tan, Fei Chen, Chen Chen, Chuanyi Wu, Chenxin Gao, Chenyi Zhou, Carlos Franco, Pere Bruna, Josep Puigmartí‐Luis, Xiang‐Zhong Chen, Bradley J. Nelson, Salvador Pané   +17 more
wiley   +1 more source

Coupled Fe3O4‐Cluster Precipitates and Single Fe‐Atom Catalysts Can Boost Oxygen Reduction via Concomitantly Accelerated Water Dissociation

Angewandte Chemie, EarlyView.
Fe3O4 clusters can be precipitated onto Fe–N–C SACs through a residual‐oxygen‐assisted precipitation approach. Compelling evidence, including operando spectroscopy and ab initio calculations, suggests that Fe3O4‐cluster precipitates not only induce asymmetric electronic structures of Fe‐N4 active center to optimize the OH* adsorption, but also ...
Cheng‐Kai Du, Xiongyi Liang, Fei‐Xiang Ma, Yutong Li, Zheng‐Qi Liu, Long Ma, Zeng Li, Liang Zhen, Yan Huang, Xiao Cheng Zeng, Cheng‐Yan Xu   +10 more
wiley   +2 more sources

Data-driven Prediction Method for High-speed Railway EMU Train Front and Rear Car Wheel Tread Defects

Chengshi guidao jiaotong yanjiu
Objective Tread defects are a primary manifestation of wheel failures in high-speed railway EMU (electrical multiple unites) trains, significantly impacting both EMU train operation safety and passenger ride comfort. Wheel tread defects are predominantly
Wenqi WANG, Dongli SONG, Lin LI, Yi LIU, Weihua ZHANG, Zejun ZHENG   +5 more
doaj   +1 more source

An EMU with Different Transmission Mechanisms? [PDF]

, 2000
As already stated in the Maastricht Treaty, the ECB has the primary objective of maintaining price stability. In fact, its initial practice has been consistent with this goal. However, a policy of price stability -say, an inflation target policy- is implemented through different instruments (e.g., interest rates changes) that may have different effects
GIOVANNETTI, GIORGIA, M. RAMON
openaire   +4 more sources

Chlorine‐Functionalized Silane‐Modified Copper Electrocatalyst for Enhanced CO2 Reduction to Multi‐Carbon Products

Advanced Science, EarlyView.
A chlorine‐functionalized silane modifier (CPTMS) is introduced to cooperatively regulate CO2 reduction to C2+ products on Cu‐based catalysts. Dual‐functional interface sequentially enhances CO2 activation, intermediates protonation and C─C coupling, delivering a 5‐fold increase in C2+ faradaic efficiency (FE, 75% vs.
Ying Ying Ch'ng, Sankhadip Saha, Ming Zhang, Shujie Zhou, Lixue Jiang, Putri Ramadhany, Jitraporn Vongsvivut, Adrian Cernescu, Priyank Vijaya Kumar, Yihao Shan, Zhipeng Ma, Xiaoxuan Luo, Rahman Daiyan, Zhaojun Han, Rose Amal   +14 more
wiley   +1 more source

Simulation Analysis of Jet Noise from High-speed Railway EMU Main Circuit Breaker Switching Valve and Noise Reduction Measures

Chengshi guidao jiaotong yanjiu
Objective The jet noise generated by the main circuit breaker switching valve of high-speed railway EMU is excessively high, which seriously affects passenger comfort. Therefore, it is essential to study effective noise reduction measures.
Chao ZHANG, Zan JIANG, Junfeng WANG, Zhengsen LIU, Junyong WANG   +4 more
doaj   +1 more source

Competitiveness, Emu and Cohesion Experiences in the Past (2000–2013); Assessment of the Present (2014–2020) and Lessons for the Future (2020 and Beyond)

International Journal of Management and Economics, 2014
The European Union has adopted several strategies to cope with a set of inter-related problems. The best known is the Europe 2020 strategy with its focus on smart, sustainable and inclusive growth.
Molle Willem
doaj   +1 more source