Results 121 to 130 of about 316,247 (300)

Structural damage identification using mathematical optimization techniques [PDF]

An identification procedure is proposed to identify damage characteristics (location and size of the damage) from dynamic measurements. This procedure was based on minimization of the mean-square measure of difference between measurement data (natural ...
Shen, Mo-How Herman
core   +1 more source

Damage detection in beams [PDF]

, 2014
Identification of crack location and depth in structural elements such as beams, columns, and slabs, etc., subjected to time varying loads will help them to retrofit before failure thereby its life and structural capabilities can be greatly improved.
Subhash, A K
core  

Additive Manufacturing of NiTi Shape Memory Alloys for Elastocaloric Applications: A Review

Advanced Functional Materials, EarlyView.
Additive manufacturing enables complex NiTi architectures that overcome key limitations in elastocaloric refrigeration, including poor heat transfer and high mechanical work input. This review surveys recent advances in LPBF‐ and DED‐fabricated NiTi shape memory alloys for elastocaloric applications, highlighting process–structure–performance ...
Ignatius Andre Setiawan, Mohammad Mehrali, Jaka Tušek, Shiva Mohajerani, Xiebin Wang, Dermot Brabazon, Mohammad Elahinia, Mehrshad Mehrpouya   +7 more
wiley   +1 more source

Research on Quantification of Structural Natural Frequency Uncertainty and Finite Element Model Updating Based on Gaussian Processes

Buildings
During bridge service, material degradation and aging occur, affecting bridge functionality. Bridge health monitoring, crucial for detecting structural damage, includes finite element model modification as a key aspect. Current finite element-based model
Qin Tian, Kai Yao, Shixin Cao
doaj   +1 more source

Lateral-torsional buckling of a beam with initial imperfections [PDF]

, 2014
Článek se zabývá statistickou analýzou únosnosti prostě uloženého ohýbaného nosníku průřezu IPE 220 řešeného geometricky nelineárním řešením s vlivem klopení. Prut byl modelován v programu ANSYS s pomocí prvku BEAM188.
Valeš, Jan
core  

Photo‐Controlled Antibacterial Drug Release From DASA‐Coated Silica Particles for Improved Treatment of Wound Infections

Advanced Functional Materials, EarlyView.
Synthesis and characterization of light‐responsive donor–acceptor Stenhouse adducts (DASA)‐coated chlorhexidine‐loaded silica nanoparticles. Such a controllable drug‐delivery system enables the release of the antimicrobial drug on demand and in consecutive cycles, thereby maintaining the concentration within the therapeutic window.
Michèle Clerc, Flavia Zuber, Lea Oberhänsli, Yvonne Elbs‐Glatz, Maria M. Miguel, Vera M. Kissling, Qun Ren, Markus Rottmar, Luciano F. Boesel, Giorgia Giovannini   +9 more
wiley   +1 more source

DNA‐Origami‐Assembled Rhodium Nanoantennas for Deep‐UV Label‐Free Single‐Protein Detection

Advanced Functional Materials, EarlyView.
Deep‐UV autofluorescence of single proteins in DNA origami‐based rhodium nanoantennas. Precisely positioned within the plasmonic nanogap, proteins retain their native state while their intrinsic emission is strongly amplified, enabling label‐free single‐molecule detection and opening new opportunities for highly sensitive and specific biosensing ...
Nicco Corduri, Malavika Kayyil Veedu, Yifan Yu, Yanqiu Zou, Jie Liu, Denis Garoli, Guillermo P. Acuna, Jérôme Wenger, Karol Kołątaj   +8 more
wiley   +1 more source

Speckle‐Engineered Upconversion Amplification in Nanoemulsion‐Templated Hydrogel Microdomes

Advanced Functional Materials, EarlyView.
Nanoemulsion‐confined PEGDA microdomes generate speckle‐like excitation fields that strongly amplify upconversion luminescence upon dehydration, enabling filter‐free visible readout with reversible on–off switching. DMD‐based lithography yields scalable, shape‐programmable arrays for moisture‐responsive displays and optical encryption.
Chaeyeong Ryu, Byungcheon Yoo, Seunghun Lee, Hyungyo Jeong, Sanggyun Jeong, Heesu Cho, Jongwon Oh, Dahye Baek, Jongkyu Kim, Yubin Lee, Eunsu Gu, Dong‐Hwan Kim, Jung‐Hoon Park, Jiseok Lee   +13 more
wiley   +1 more source

Retrofitting of a Multi-Span Simply Supported Bridge into a Semi-Integral Bridge

Applied Sciences
Thousands of multi-span, simply supported beam bridges with short or medium spans have been built in China. They often suffer from problems of cracks in the link slabs over piers, and the deterioration and damage of deck expansion joints at abutments. To
Zhen Xu, Xiaoye Luo, Khaled Sennah, Baochun Chen, Yizhou Zhuang   +4 more
doaj   +1 more source

MODAL ANALYSIS OF A SIMPLY SUPPORTED SANDWICH BEAM

International Journal of Research in Engineering and Technology, 2016
Every mechanical structure exhibits natural modes of vibration. Beams with variable cross section and material properties are frequently used in aeronautical, mechanical and civil engineering. Given the elastic and inertia characteristics of the structures, modes of vibration can be computed, the study being known as modal analysis. This paper presents
openaire   +1 more source