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Showing 1 to 12 of 17 entries
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Reversibility of anodic lithium in rechargeable lithium-oxygen batteries.

Nature communications

Shui JL, Okasinski JS, Kenesei P, Dobbs HA, Zhao D, Almer JD, Liu DJ.
PMID: 23929396
Nat Commun. 2013;4:2255. doi: 10.1038/ncomms3255.

Non-aqueous lithium-air batteries represent the next-generation energy storage devices with very high theoretical capacity. The benefit of lithium-air batteries is based on the assumption that the anodic lithium is completely reversible during the discharge-charge process. Here we report our...

Deviations from Vegard's law and evolution of the electrocatalytic activity and stability of Pt-based nanoalloys inside fuel cells by in operando X-ray spectroscopy and total scattering.

Nanoscale

Petkov V, Maswadeh Y, Vargas JA, Shan S, Kareem H, Wu ZP, Luo J, Zhong CJ, Shastri S, Kenesei P.
PMID: 30860531
Nanoscale. 2019 Mar 21;11(12):5512-5525. doi: 10.1039/c9nr01069f.

Catalysts for energy related applications, in particular metallic nanoalloys, readily undergo atomic-level changes during electrochemical reactions. The origin, dynamics and implications of the changes for the catalysts' activity inside fuel cells though are not well understood. This is largely...

High-energy micrometre-scale pixel direct conversion X-ray detector.

Journal of synchrotron radiation

Scott CC, Farrier M, Li Y, Laxer S, Ravi P, Kenesei P, Wojcik MJ, Miceli A, Karim KS.
PMID: 34212871
J Synchrotron Radiat. 2021 Jul 01;28:1081-1089. doi: 10.1107/S1600577521004835. Epub 2021 Jun 02.

The objective of this work was to fabricate and characterize a new X-ray imaging detector with micrometre-scale pixel dimensions (7.8 µm) and high detection efficiency for hard X-ray energies above 20 keV. A key technology component consists of a...

Sub-pixel high-resolution imaging of high-energy x-rays inspired by sub-wavelength optical imaging.

Optics express

Bertaux N, Allain M, Weizeorick J, Park JS, Kenesei P, Shastri SD, Almer J, Highland MJ, Maddali S, Hruszkewycz SO.
PMID: 34808946
Opt Express. 2021 Oct 25;29(22):35003-35021. doi: 10.1364/OE.438945.

We have developed and demonstrated an image super-resolution method-XR-UNLOC: X-Ray UNsupervised particle LOCalization-for hard x-rays measured with fast-frame-rate detectors that is an adaptation of the principle of photo-activated localization microscopy (PALM) and stochastic optical reconstruction microscopy (STORM), which enabled...

A large field-of-view high-resolution hard x-ray microscope using polymer optics.

The Review of scientific instruments

Qiao Z, Shi X, Kenesei P, Last A, Assoufid L, Islam Z.
PMID: 33261446
Rev Sci Instrum. 2020 Nov 01;91(11):113703. doi: 10.1063/5.0011961.

We present an effective approach using a matched pair of polymer-based condenser-objective lenses to build a compact full-field x-ray microscope with a high spatial resolution. A unique condenser comprising arrays of high-aspect-ratio prisms with equilateral cross section is used...

Method for conducting in situ high-temperature digital image correlation with simultaneous synchrotron measurements under thermomechanical conditions.

The Review of scientific instruments

Rossmann L, Sarley B, Hernandez J, Kenesei P, Köster A, Wischek J, Almer J, Maurel V, Bartsch M, Raghavan S.
PMID: 32259931
Rev Sci Instrum. 2020 Mar 01;91(3):033705. doi: 10.1063/1.5124496.

This work presents a novel method of obtaining in situ strain measurements at high temperature by simultaneous digital image correlation (DIC), which provides the total strain on the specimen surface, and synchrotron x-ray diffraction (XRD), which provides lattice strains...

Sparse recovery of undersampled intensity patterns for coherent diffraction imaging at high X-ray energies.

Scientific reports

Maddali S, Calvo-Almazan I, Almer J, Kenesei P, Park JS, Harder R, Nashed Y, Hruszkewycz SO.
PMID: 29563508
Sci Rep. 2018 Mar 21;8(1):4959. doi: 10.1038/s41598-018-23040-y.

Coherent X-ray photons with energies higher than 50 keV offer new possibilities for imaging nanoscale lattice distortions in bulk crystalline materials using Bragg peak phase retrieval methods. However, the compression of reciprocal space at high energies typically results in...

Intermittent plasticity in individual grains: A study using high energy x-ray diffraction.

Structural dynamics (Melville, N.Y.)

Chatterjee K, Beaudoin AJ, Pagan DC, Shade PA, Philipp HT, Tate MW, Gruner SM, Kenesei P, Park JS.
PMID: 30868086
Struct Dyn. 2019 Jan 07;6(1):014501. doi: 10.1063/1.5068756. eCollection 2019 Jan.

Long-standing evidence suggests that plasticity in metals may proceed in an intermittent fashion. While the documentation of intermittency in plastically deforming materials has been achieved in several experimental settings, efforts to draw connections from dislocation motion and structure development...

A rotational and axial motion system load frame insert for in situ high energy x-ray studies.

The Review of scientific instruments

Shade PA, Blank B, Schuren JC, Turner TJ, Kenesei P, Goetze K, Suter RM, Bernier JV, Li SF, Lind J, Lienert U, Almer J.
PMID: 26429452
Rev Sci Instrum. 2015 Sep;86(9):093902. doi: 10.1063/1.4927855.

High energy x-ray characterization methods hold great potential for gaining insight into the behavior of materials and providing comparison datasets for the validation and development of mesoscale modeling tools. A suite of techniques have been developed by the x-ray...

iRadMat: A thermo-mechanical testing system for in situ high-energy X-ray characterization of radioactive specimens.

The Review of scientific instruments

Zhang X, Xu C, Wang L, Chen Y, Li M, Almer JD, Benda E, Kenesei P, Mashayekhi A, Park JS, Westferro FJ.
PMID: 28147640
Rev Sci Instrum. 2017 Jan;88(1):015111. doi: 10.1063/1.4974246.

We present an in situ Radiated Materials (iRadMat) experimental module designed to interface with a servo-hydraulic load frame for X-ray measurements at beamline 1-ID at the Advanced Photon Source. This new capability allows in situ studies of radioactive specimens...

Data management and processing workflow for the Materials Physics and Engineering group beamlines at the Advanced Photon Source.

Journal of synchrotron radiation

Park JS, Horn C, Ramanathan P, Kenesei P, Veseli S.
PMID: 30855245
J Synchrotron Radiat. 2019 Mar 01;26:373-381. doi: 10.1107/S1600577519000584. Epub 2019 Feb 12.

The ability to store, organize, process and distribute experimental data effectively, efficiently and securely is particularly important for large user facilities like the Advanced Photon Source. In this article, the deployment of the APS Data Management System (DM) at...

Gestational Exposure to Sodium Valproate Disrupts Fasciculation of the Mesotelencephalic Dopaminergic Tract, With a Selective Reduction of Dopaminergic Output From the Ventral Tegmental Area.

Frontiers in neuroanatomy

Ádám Á, Kemecsei R, Company V, Murcia-Ramón R, Juarez I, Gerecsei LI, Zachar G, Echevarría D, Puelles E, Martínez S, Csillag A.
PMID: 32581730
Front Neuroanat. 2020 Jun 05;14:29. doi: 10.3389/fnana.2020.00029. eCollection 2020.

Gestational exposure to valproic acid (VPA) is known to cause behavioral deficits of sociability, matching similar alterations in human autism spectrum disorder (ASD). Available data are scarce on the neuromorphological changes in VPA-exposed animals. Here, we focused on alterations...

Showing 1 to 12 of 17 entries