Results 101 to 110 of about 536,964 (293)

Adjustable photoacoustic tomography probe improves light delivery and image quality

Photoacoustics, 2018
One cause for suboptimal photoacoustic tomography (PAT) penetration depth is attenuation of incident light by soft tissue. To better understand this problem, we investigated the effects of illumination fiber optic bundle geometry on PAT penetration depth
Gurneet S. Sangha, Nicholas J. Hale, Craig J. Goergen   +2 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

Signal-to-noise ratio improvement in photoacoustic imaging

, 2020
Halbleiterdiodenlaser ermöglichen für die photoakustische Bildgebung kostengünstige, kompakte und gut integrierte Aufbauten, die jedoch unter geringem Rauschabstand leiden. Zwei Möglichkeiten zur Verbesserung des Rauschabstandes wurden untersucht.
openaire   +2 more sources

The effect of spatial transverse coherence property of a thermal source on Ghost imaging and Ghost imaging via compressive sampling

, 2009
Both ghost imaging (GI) and ghost imaging via compressive sampling (GICS) can nonlocally image an object. We report the influence of spatial transverse coherence property of a thermal source on GI and GICS and show that, using the same acquisition ...
Bennink, Bromberg, Candès, Candès, Candès, Cheng, Donoho, Ferri, Ferri, Figueiredo, Gatti, Gatti, Gong, Gong, Gong, Gong, Gong, Harris, Hunt, Katz, Liu, Mallat, Meyers, Pittman, Scarcelli, Shensheng Han, Tian, Wenlin Gong, Zhai, Zhang, Zhang   +30 more
core   +1 more source

Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology

Advanced Engineering Materials, EarlyView.
We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham, Chenyu Wen, Mohammad Hadi Khaksaran, Won‐Yong Lee, Javier Cruz, Klas Hjort, Dongping Wu, Shi‐Li Zhang   +7 more
wiley   +1 more source

A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection

Advanced Engineering Materials, EarlyView.
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan, Shuvra Saha, Sumit Hassan Eshan, Rinku Basak, Md. Nahian Al Subri Ivan, Ahmed Murtuza Saleque, Raja Tariqul Hasan Tusher, Sadia Zabin, Md. Abdur Rahman, Yuen Hong Tsang   +9 more
wiley   +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

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 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

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