Results 71 to 80 of about 30,330 (265)

Analysis of the mechanism of fatigue crack arrest in a cylindrical notched specimen

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2018
The phenomenon of fatigue crack arrest in surface-hardened cylindrical specimens with stress concentrators is examined from the perspective of linear fracture mechanics.
V. P. Sazanov
doaj   +1 more source

Eyvan Türbesi In Anatolia during the Seljuk and beyliks period

Journal of Architecture, Art & Humanistic Science, 2020
Iwan or Eyvan is an architectural unit with three sides closed and one side entirely open with ahuge Arch, Islamic Architecture used Iwan In Mosques, madrasas, khans, Bimarstans, Zawaiya, Khanqa and a lot of other buildings, Iwan was also used as Funeral
Hala Ahmed
doaj   +1 more source

Fabrication of Pyridinic Nitrogen‐Functionalized Carbon Cloth for High‐Performance Iron‐Chromium Flow Batteries

Advanced Functional Materials, EarlyView.
The carbon cloth electrode with targeted pyridinic nitrogen doping, achieved via urea pyrolysis, effectively modulates the adsorption of Cr(II) species and enhances electron transfer, leading to significantly improved kinetics of the Cr(II)/Cr(III) reaction. The material demonstrates a high discharge capacity of 689.3 mAh and an energy efficiency of 72.
Jinfeng Yi, Senwei Zeng, Runfa Zhao, Guangfu Wu, Zhi Liu, Tianhang Zhou, Chunming Xu, Jia Guo, Quan Xu, Yingchun Niu   +9 more
wiley   +1 more source

Enhanced Li‐Ion Battery Performance with Hybrid MXene/GnR Electrodes: Heterojunctions and Engineered Architectures Supported by DFT Mechanistic Studies for Improved Rate Performance, Stability & Capacity

Advanced Functional Materials, EarlyView.
Lithium‐ion batteries (LIBs) remain central to energy storage but suffer from slow ion transport and degradation. Here, we present a binder‐free Ti3C2Tx MXene/GnR hybrid electrode with a porous 3D architecture formed via freeze casting. The structure enhances conductivity, ion transport, and stability, delivering 401 mAh/g, ∼97% efficiency, and 92 ...
Sara Mohseni Taromsari, Meysam Salari, Dipali Nayak, Saeed Habibpour, Ling Wei Hwang, Cristopher Carreiro, Carlos M. Da Silva, Aiping Yu, Chul B. Park, Cristina H. Amon, Hani E. Naguib   +10 more
wiley   +1 more source

Constructing Ionic Fast Diffusion Channels on LiNi0.5Mn1.5O4 for Lithium‐Ion Batteries

Advanced Functional Materials, EarlyView.
A dual‐modification strategy is developed for LNMO cathode, where bulk Ti doping stabilizes the oxygen framework and simultaneously drives the in situ formation of LaTi2O6 nano‐islands as ion diffusion channels on (111) surfaces, enabling high‐rate capacity (∼100 mAh g−1 at 30 C) and excellent cycling retention (87.8% after 1000 cycles).
Xinyi Zhang, Sicheng Wu, Xuzhao Liu, Haocheng Guo, Jian Peng, Xia Huang, Xiaobo Zhu, Yuhui Ge, Haochen Lu, Shuhao Wang, Lianzhou Wang   +10 more
wiley   +1 more source

Archaeological Data Concerning the History of the Evangelical Church in Dealu Frumos, Sibiu County

Materiale și Cercetări Arheologice, 2011
Most historians agree that the original planimetry of the church in Dealu Frumos consisted of a hall church with nave and two aisles, a square choir, a semicircular apse and a western tower. All these were built during the 13th century, before the Tartar
Marcu Istrate, D., Roman, D.
doaj   +1 more source

Rate‐Adaptive Site Transformation Catalyst for Parallel Water Dissociation and Hydrogen Adsorption in Alkaline Hydrogen Evolution

Advanced Functional Materials, EarlyView.
This work presents a rate‐adaptive site transformation strategy in Ag‑ethylenediamine intercalated Co9S8, which not only enables parallel water dissociation and H* adsorption, but also allows the catalyst to provide more active sites under high demand, removing a major bottleneck. The catalyst achieves a record current density of 4.2 A cm−2@2.0 V, with
Yongqi Ye, Yuzhuo Jiang, Bin Tian, Derek Ho   +3 more
wiley   +1 more source

Multi‐Responsive Dendrimer‐Hyaluronic Acid Hydrogel With Lubricating and Immunoregulatory Functions for Synergistic Osteoarthritis Therapy

Advanced Functional Materials, EarlyView.
A hydrogel with dynamic cross‐links was formed by cross‐linking hyaluronic acid with curcumin‐preloaded, phenylboronic acid‐modified poly(amidoamine) dendrimers. This hydrogel exhibited excellent injectability and self‐healing ability, enabling controlled Cur release in response to low pH, high reactive oxygen species (ROS) generation, or mechanical ...
Junjie Liu, Mengsi Zhan, Haoyu Huang, Jianhong Wang, Cheng Ni, Xiaojun Zhou, Hannah Küttner, Cong Song, Xiangyang Shi, Andrij Pich   +9 more
wiley   +1 more source

A Quadruple Band-Notched SWB MIMO Antenna with Enhanced Isolation Using Wiggly Line [PDF]

Radioengineering
A novel quadruple band-notched spatial diversity/MIMO antenna for super wideband (SWB) application is investigated. The proposed antenna comprises two identical tapered semicircular radiators with two microstrip feedlines and a common slotted ground ...
A. K. Chaudhary, M. Manohar
doaj  

The Mummy Trappings in the National Museum in Belgrade: A Reconstruction and Typological Assessment

Etnoantropološki Problemi, 2019
In July 2009 the National Museum in Belgrade received – as a donation – two elements of a funerary assemblage: a fragmented mask and a conjoined collar-breast covering.
Branislav Anđelković, Jonathan P. Elias   +1 more
doaj   +1 more source