Results 91 to 100 of about 533,442 (291)

A Double-Threshold Technique for Fast Time-Correspondence Imaging

, 2013
We present a robust imaging method based on time-correspondence imaging and normalized ghost imaging (GI) that sets two thresholds to select the reference frame exposures for image reconstruction.
Fan, Heng, Li, Ming-Fei, Liu, Xue-Feng, Luo, Kai-Hong, Wu, Ling-An, Yao, Xu-Ri, Zhang, Yu-Ran   +6 more
core   +1 more source

Fluid Biomarkers of Disease Burden and Cognitive Dysfunction in Progressive Supranuclear Palsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Identifying objective biomarkers for progressive supranuclear palsy (PSP) is crucial to improving diagnosis and establishing clinical trial and treatment endpoints. This study evaluated fluid biomarkers in PSP versus controls and their associations with regional 18F‐PI‐2620 tau‐PET, clinical, and cognitive outcomes.
Roxane Dilcher, Charles B. Malpas, Stuart J. McDonald, William T. O’Brien, Craig Despott, Kelly L. Bertram, Matthew P. Pase, Lukas Frontzkowski, Meng Law, Terence J. O’Brien, Lucy Vivash   +10 more
wiley   +1 more source

Knee Crepitus and Osteoarthritis Features in Young Adults Following Traumatic Knee Injury

Arthritis Care &Research, EarlyView.
Objective This study explored the association between knee crepitus and the presence, and worsening, of structural osteoarthritis features and self‐reported outcomes in young adults following traumatic knee injury. Methods One year following anterior cruciate ligament reconstruction (ACLR), 112 participants (41 female participants; median age 28 years ...
Jamon L. Couch, Brooke E. Patterson, Kay M. Crossley, Ali Guermazi, Matthew G. King, Danilo De Oliveira Silva, Jackie L. Whittaker, Michael A. Girdwood, Adam G. Culvenor   +8 more
wiley   +1 more source

Pixel-wise programmability enables dynamic high-SNR cameras for high-speed microscopy

Nature Communications
High-speed wide-field fluorescence microscopy has the potential to capture biological processes with exceptional spatiotemporal resolution. However, conventional cameras suffer from low signal-to-noise ratio at high frame rates, limiting their ability to
Jie Zhang, Jonathan Newman, Zeguan Wang, Yong Qian, Pedro Feliciano-Ramos, Wei Guo, Takato Honda, Zhe Sage Chen, Changyang Linghu, Ralph Etienne-Cummings, Eric Fossum, Edward Boyden, Matthew Wilson   +12 more
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Statistical resolution analysis of microwave computational imaging

Electronics Letters
This letter presents a model based on the Cramér–Rao bound theory for calculating the theoretical lower limit of imaging resolution of microwave computational imaging aided by re‐configurable metasurface.
Jinyu Zhang, Taiyang Hu, Mengxuan Xiao, Haoxuan Zhang, Li Wu, Zelong Xiao   +5 more
doaj   +1 more source

Research on an SICM Scanning Image Resolution Enhancement Algorithm

Sensors
Scanning ion conductance microscopy (SICM) enables the non-invasive three-dimensional imaging of live cells and other structures in physiological environments.
Zhenhua Quan, Shilin Xu, Xiaobo Liao, Bin Wu, Liang Luo   +4 more
doaj   +1 more source

Research Paper: Maximization of Loop RF Coil SNR in the Water Phantom through Geometric Tuning and Metasurface [PDF]

فیزیک کاربردی ایران
The spatial distribution of the signal-to-noise ratio (SNR) of a loop radio frequency (RF) coil is influenced by its radius and distance from the phantom. Adding a metasurface to the coil also alters the SNR distribution.
Mohammadreza Asgari, Mohammad Mohammadzadeh   +1 more
doaj   +1 more source

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

Advanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu, Peipei Chen, Shafia Mukhtar Ibrahim, Mukhtar Lawan Adam, Attia Falak, Mokhotjwa Simon Dhlamini, Hanfu Wang, Lingxiang Jiang, Weiguo Chu   +8 more
wiley   +1 more source

Effects of Carbon Nanoparticles on Triboelectro‐Induced Surface Defects

Advanced Engineering Materials, EarlyView.
Carbon nanoparticles added to grease modify the electrocontact behavior. The synergy of particle concentration and electric current dominates the surface damage of metals in contact. Electrical surface damage caused by current leakage is a critical challenge in high‐performance applications such as electric vehicle (EV) drivetrains and wind turbine ...
Mohsen Tajedini, Lu Fang, Jacob Bons, Mohammad Humaun Kabir, Evan Johnson, Joe Kosmoski, Hong Liang   +6 more
wiley   +1 more source