Results 141 to 150 of about 473,459 (366)

Nondestructive evaluation of advanced ceramics [PDF]

A review is presented of Lewis Research Center efforts to develop nondestructive evaluation techniques for characterizing advanced ceramic materials.
Kautz, Harold E., Klima, Stanley J.
core   +1 more source

Segmenting root systems in X-ray computed tomography images using level sets

, 2018
The segmentation of plant roots from soil and other growing media in X-ray computed tomography images is needed to effectively study the root system architecture without excavation.
Duncan, Keith E., Tabb, Amy, Topp, Christopher N.   +2 more
core   +1 more source

High‐Performance Low‐Emissivity Paints Enabled by N‐Doped Poly(benzodifurandione) (n‐PBDF) for Energy‐Efficient Buildings

Advanced Functional Materials, EarlyView.
This study introduces a scalable and colored low‐emissivity (low‐e) paint achieved by spraying an ultrathin n‐doped poly(benzodifurandione) (n‐PBDF) coating onto various colored substrates. The low‐e paint enhances thermal regulation by reducing mid‐infrared thermal emissivity to 0.19, thereby stabilizing indoor temperatures across diverse climates ...
Xiaojie Liu, Won‐June Lee, Daniel William Carne, Yanpei Tian, Andrea Felicelli, Yue Lei, Joseph A. Romo, Liyan You, Zixin Xiong, Orlando Gabriel Rivera Gonzalez, Abdulrahman Aljwirah, Qiaoqiang Gan, Jianguo Mei, Xiulin Ruan   +13 more
wiley   +1 more source

Optimization of scanner parameters for dual energy micro-CT [PDF]

, 2015
Two materials of different composition can have very similar grey values in an X-ray Computed Tomography (CT). This is because X-ray CT uses polychromatic sources in combination with energy-integrating detectors and the materials have a mass attenuation ...
De Muynck, Amélie, Dhaene, Jelle, Dierick, Manuel, Pauwels, Elin, Van Hoorebeke, Luc   +4 more
core  

Harnessing Outer Space for Improved Electrocaloric Cooling

Advanced Functional Materials, EarlyView.
A novel radiative heat sink/source‐integrated electrocaloric (R‐iEC) system combines the electrocaloric (EC) effect with a thermally conductive radiative cooler (TCRC) to address heat dissipation limitations in EC devices. Utilizing outer space as a heat sink, the system achieves up to 240 W m−2 of heat dissipation performance, making it highly ...
Dong Hyun Seo, Hyung Rae Kim, Joo Ho Yun, Hyunkyu Kwak, Do Hyeon Kim, Se‐Yeon Heo, Rujun Ma, Gil Ju Lee, Young Min Song   +8 more
wiley   +1 more source

Anomalous scaling law for noise variance and spatial resolution in differential phase contrast computed tomography

, 2010
In conventional absorption based x-ray computed tomography (CT), the noise variance in reconstructed CT images scales with spatial resolution following an inverse cubic relationship.
Arrizón, David, Faris, Guang-Hong Chen, Herzen, Huang, Huang, Joseph Zambelli, Kafri, Kak, Kalender, Ke Li, Macovski, Momose, Momose, Nicholas Bevins, Nickoloff, Pfeiffer, Pfeiffer, Pfeiffer, Pfeiffer, Qi, Qi, Suleski, Weitkamp, Yashiro, Zambelli, Zhihua Qi   +27 more
core   +1 more source

Diagnostic potential of combined transthoracic echocardiography and x‐ray computed tomography in suspected aortic dissection [PDF]

, 1999
Yskert Von Kodolitsch, Norbert Krause, Christoph Nienaber, Rolf Peter Spielmann   +3 more
openalex   +1 more source

Off‐Stoichiometry Engineering of the Electrical and Optical Properties of SrNbO3 Using Oxide Molecular Beam Epitaxy

Advanced Functional Materials, EarlyView.
The plasma edge of transparent conducting oxide SrNbO3 shifts from ∼2 eV in the visible range to 1.37 eV in the near‐infrared region by off‐stoichiometry using the vacancy sites as quasi‐substitutional virtual elements. This work advances the stoichiometry engineering of perovskite oxides using oxide molecular beam epitaxy, allowing synthesis beyond ...
Jasnamol Palakkal, Alexey Arzumanov, Ruiwen Xie, Zhiyuan Li, Niloofar Hadaeghi, Thomas Wagner, Tianshu Jiang, Yating Ruan, Gennady Cherkashinin, Leopoldo Molina Luna, Hongbin Zhang, Lambert Alff   +11 more
wiley   +1 more source

The effect on dose to computed tomography phantoms of varying the theoretical x‐ray spectrum: A comparison of four diagnostic x‐ray spectrum calculating codes [PDF]

, 1998
Martin Caon, Giovanni Bibbo, John Pattison, Madhava Bhat   +3 more
openalex   +1 more source

Toward Architected Microstructures Using Advanced Laser Beam Shaping in Laser Powder Bed Fusion of Ti‐6Al‐4V

Advanced Functional Materials, EarlyView.
This research applies advanced laser beam shaping (LCoS‐SLM) to fabricate the Ti‐6Al‐4V alloy via laser powder bed fusion. A tailored beam is used to prevent martensite formation and create a dual α+β microstructure by controlling cooling rates.
Reza Esmaeilzadeh, Jamasp Jhabvala, Lucas Schlenger, Mathijs van der Meer, Eric Boillat, Cyril Cayron, Amir Mohammad Jamili, Junfeng Xiao, Roland E. Logé   +8 more
wiley   +1 more source