Results 31 to 40 of about 12,048 (256)

Advancing Research on Biomaterials and Biological Materials with Scanning Electron Microscopy under Environmental and Low Vacuum Conditions

Advanced Engineering Materials, EarlyView.
Herein, environmental scanning electron microscopy (ESEM) is discussed as a powerful extension of conventional SEM for life sciences. By combining high‐resolution imaging with variable pressure and humidity, ESEM allows the analysis of untreated biological materials, supports in situ monitoring of hydration‐driven changes, and advances the functional ...
Jendrian Riedel, Lea Dierker, Antoine Eyram Kwame, Kim Nora Wagner, Jonas J. Unterholzner, Jan‐Henning Dirks, Dorothea Brüggemann   +6 more
wiley   +1 more source

Multi-parameter dimensionality reduction quantitative characterization and ultrasonic evaluation of GH738 grain morphology

Cailiao gongcheng
To characterize the grain morphology from multiple apsects such as size， shape and distribution， and then realize the quantitative ultrasonic evaluation of the uniformity of grain morphology， an ultrasonic multi-parameter evaluation method for grain ...
GONG Xin, CHEN Jie, CHEN Xi, WU Guanhua
doaj   +1 more source

Nondestructive Test Technology Research for Yarn Linear Density Unevenness

AUTEX Research Journal, 2021
Yarn linear density and linear density unevenness between fragments involve the mass and mass variation of yarn per unit length, which are important indices to reflect the uniformity of yarn thickness.
Zhou Bin, Wang Huiling, Wang Ke, Zhao Jumei, Zhou Hongtao, Huang Shihui   +5 more
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Barras de FRP: avaliando o módulo de elasticidade não destrutivamente FRP bars: assesing elastic modulus nondestructively

Polímeros, 1997
Um estudo experimental foi realizado com o objetivo de contribuir com o desenvolvimento de métodos de ensaios de avaliação das características mecânicas das barras de plástico reforçado com fibra (FRP) a serem utilizadas como armadura nas obras de ...
Protasio F Castro
doaj   +1 more source

Investigating the use of terahertz pulsed time domain reflection imaging for the study of fabric layers of an Egyptian mummy [PDF]

Journal of the European Optical Society-Rapid Publications, 2011
This paper reports the first use of terahertz time domain reflection imaging involving textiles on part of a complete human mummy, still in original wrapping.
Fukunaga Kaori, Cortes Emilia, Cosentino Antonino, Stünkel Isabel, Leona Marco, Duling Irl N., Mininberg David T.   +6 more
doaj   +1 more source

Piezoresistive Monitoring of Carbon Nanomaterial‐Reinforced Epoxy Composites Under Cyclic and Fatigue Loading: A Review

Advanced Engineering Materials, EarlyView.
Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente, J. Nunes‐Pereira, A. P. Silva, P. N. B. Reis   +3 more
wiley   +1 more source

All-Optical Tuning Based on Magnetic Fluid-Filled Microcapillary Resonators Inserted with Half-Cone Fiber

Sensors
In this study, we designed and experimentally demonstrated an all–optical tuning system based on the absorption effect of magnetic nanoparticles on a pump light.
Minggang Chai, Caijun Xue, Mengyu Wang, Yanjun Fu, Chengfeng Xie   +4 more
doaj   +1 more source

Torsional Low-Strain Test for Nondestructive Integrity Examination of Existing High-Pile Foundation

Sensors, 2022
Low-strain tests are widely utilized as a nondestructive approach to assess the integrity of newly piled foundations. So far, the examination of existing pile foundations is becoming an indispensable protocol for pile recycling or post-disaster safety ...
Yunpeng Zhang, M. Hesham El Naggar, Wenbing Wu, Zongqin Wang   +3 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source