Results 31 to 40 of about 888,059 (303)

Analysis of Microstructure and Mechanical Properties of Inconel 625 Alloy by Wire Arc Additive Manufacturing (WAAM) [PDF]

Archives of Metallurgy and Materials
An arc is used as a heat source in the manufacturing process known as wire arc additive manufacturing (WAAM), which uses layer-by-layer cladding to fuse wire.
K. Saravanakumar, V.G. Balaji, T. Srijha, V. Sanjay, K. Thatchuneswaran   +4 more
doaj   +1 more source

Large depth-of-field ultra-compact microscope by progressive optimization and deep learning

Nature Communications, 2023
The optical microscope is customarily an instrument of substantial size and expense but limited performance. Here we report an integrated microscope that achieves optical performance beyond a commercial microscope with a 5×, NA 0.1 objective but only at ...
Yuanlong Zhang, Xiaofei Song, Jiachen Xie, Jing Hu, Jiawei Chen, Xiang Li, Haiyu Zhang, Qiqun Zhou, Lekang Yuan, Chui Kong, Yibing Shen, Jiamin Wu, Lu Fang, Qionghai Dai   +13 more
doaj   +1 more source

Plasmonic interferometry: probing launching dipoles in scanning-probe plasmonics

, 2014
We develop a semi-analytical method for analyzing surface plasmon interferometry using near-field scanning optical sources. We compare our approach to Young double hole interferometry experiments using scanning tunneling microscope (STM) discussed in the
Aurélien Drezet, Cyriaque Genet, Guillaume Bachelier, Novotny L., Oriane Mollet, Serge Huant   +5 more
core   +3 more sources

Far-Field Super-Resolution Optical Microscopy for Nanostructures in a Reflective Substrate

Photonics
The resolution of an optical microscope is determined by the overall point spread function of the system. When examining structures significantly smaller than the wavelength of light, the contribution of the background or surrounding environment can ...
Aiqin Zhang, Kunyang Li, Guorong Guan, Haowen Liang, Xiangsheng Xie, Jianying Zhou   +5 more
doaj   +1 more source

Removal ability of MTA-, bioceramic-, and resin-based sealers from obturated root canals, following XP-endo® Finisher R file: An ex vivo study

Saudi Endodontic Journal, 2019
Aim: Removability assessment of mineral trioxide aggregate (MTA)-, bioceramic-, and epoxy resin-based sealers, with or without XP-endo® Finisher R file, was achieved.
Taxiarchis G Kontogiannis, Nikolaos P Kerezoudis, Konstantinos Kozyrakis, Elefterios Terry. R. Farmakis   +3 more
doaj   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

A comparative study of human and animal hairs: Microscopic hair comparison and cytochrome c oxidase I species identification

Journal of Forensic Science and Medicine, 2019
Human and animal hairs have been used in forensic investigations for over a century. Hair is stable under adverse natural conditions; hence, it is often recovered at the crime scene, and it is necessary to determine whether the hair is of human or animal
Venusia Cortellini, Anna Carobbio, Gloria Brescia, Nicoletta Cerri, Andrea Verzeletti   +4 more
doaj   +1 more source

A Surgical Pen-Type Probe Design for Real-Time Optical Diagnosis of Tumor Status Using 5-Aminolevulinic Acid

Diagnostics, 2021
A surgical microscope is large in size, which makes it impossible to be portable. The distance between the surgical microscope and the observation tissue is 15–30 cm, and the adjustment range of the right and left of the camera is a maximum of 30 ...
Kicheol Yoon, Kwanggi Kim, Seunghoon Lee
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Nonlinear Optical Microscopy and Plasmon Enhancement

Nanomaterials, 2022
Improving nonlinear optics efficiency is currently one of the hotspots in modern optical research. Moreover, with the maturity of nonlinear optical microscope systems, more and more biology, materials, medicine, and other related disciplines have higher ...
Yi Cao, Jing Li, Mengtao Sun, Haiyan Liu, Lixin Xia   +4 more
doaj   +1 more source