Results 261 to 270 of about 102,053 (334)

Electroluminescence and Franz–Keldysh Modulation Observed in Sn/Ge Multi‐Quantum Wells

Advanced Optical Materials, EarlyView.
We investigate the optoelectronic properties of PIN diodes based on ultrathin α‐Sn/Ge multiple quantum film structures, fabricated by molecular beam epitaxy, both experimentally and theoretically. The samples exhibit a light emission spectrum in the short‐wavelength infrared range with two transitions. Furthermore, when operating as a photodetector, we
Michael Oehme, Damiano Marian, Maurice Wanitzek, Christian Spieth, Daniel Schwarz, Florian Bärwolf, Markus Andreas Schubert, Alwin Daus, Michele Virgilio, Giovanni Capellini   +9 more
wiley   +1 more source

Characterizing Cerebral Perfusion Changes in Subjective Cognitive Decline Using Single Photon Emission Computed Tomography: A Case-Control Study. [PDF]

J Clin Med
Lin YK, Lin LF, Kao CH, Chen IJ, Cheng CY, Tsai CL, Lee JT, Sung YF, Chou CH, Yen SY, Chiu CH, Yang FC.   +11 more
europepmc   +1 more source

Accelerating Luminescence in Nanostructures: Exploring the Physical Limits and Impact of Ultrafast Emission in Nanoscale Materials

Advanced Photonics Research, EarlyView.
This review highlights recent advances in accelerating luminescence in nanostructures through cooperative emission, resonator coupling, and nonlocal light–matter interactions. By unifying concepts such as excitonic superradiance, superfluorescence, and the plasmonic Purcell effect, it reveals physical limits of ultrafast emission and their potential ...
Masaaki Ashida, Koichi Okamoto, Takuya Matsuda, Hajime Ishihara   +3 more
wiley   +1 more source

Establishing Diagnostic Reference Levels for Single-Photon Emission Computed Tomography (SPECT) Imaging: A Preliminary Study in Indian Healthcare Settings. [PDF]

Cureus
Pandey A, Dhingra VK, Goswami M, Mishra P, Sharma P.   +4 more
europepmc   +1 more source

Sharp Diamond Needles for Single‐Photon Emission

Advanced Photonics Research, EarlyView.
We study the morphological evolution of single‐crystal diamond needles oxidized at 650–700 °C. Electron microscopy and photoluminescence reveal temperature‐ and time‐dependent sharpening, length reduction, and surface modifications affecting tip properties.
Mariam Quarshie, Yaraslau Padrez, Priyadharshini Balasubramanian, Elena Filonenko, Rizwan Sultan, Renata Karpicz, Alexander Obraztsov, Fedor Jelezko, Sergei Malykhin, Polina Kuzhir   +9 more
wiley   +1 more source

Impact of cardiac size on diagnostic performance of single-photon emission computed tomography myocardial perfusion imaging: insights from the REgistry of Fast Myocardial Perfusion Imaging with NExt generation single-photon emission computed tomography. [PDF]

Eur Heart J Cardiovasc Imaging
Randazzo MJ, Elias P, Poterucha TJ, Sharir T, Fish MB, Ruddy TD, Kaufmann PA, Sinusas AJ, Miller EJ, Bateman T, Dorbala S, Di Carli M, Castillo M, Liang JX, Miller RJH, Dey D, Berman DS, Slomka PJ, Einstein AJ.   +18 more
europepmc   +1 more source

Multi‐Material Additive Manufacturing of Soft Robotic Systems: A Comprehensive Review

Advanced Robotics Research, EarlyView.
This review explores the transformative role of multi‐material additive manufacturing (MMAM) in the development of soft robotic systems. It presents current techniques, materials, and design strategies that enable functionally graded and adaptive structures.
Ritik Raj, Quan‐Chen Song, Jia‐Yang Juang   +2 more
wiley   +1 more source

First comparison between artificial intelligence-guided coronary computed tomography angiography versus single-photon emission computed tomography testing for ischemia in clinical practice. [PDF]

Coron Artery Dis
Cho GW, Sayed S, D'Costa Z, Karlsberg DW, Karlsberg RP.   +4 more
europepmc   +1 more source

3D Printing of Soft Robotic Systems: Advances in Fabrication Strategies and Future Trends

Advanced Robotics Research, EarlyView.
Collectively, this review systematically examines 3D‐printed soft robotics, encompassing material selections, function integration, and manufacturing methodologies. Meanwhile, fabrication strategies are analyzed in order of increasing complexity, highlighting persistent challenges with proposed solutions.
Changjiang Liu, Bin Cui, Xumin Huang, Xiaoyu (Rayne) Zheng, T. Thang Vo‐Doan, Ruirui Qiao   +5 more
wiley   +1 more source

Preoperative localization of single gland disease in primary hyperparathyroidism: a comparative study for preoperative localization with four-dimensional computed tomography, ultrasonography, and technetium-99m-sestamibi single-photon emission computed tomography. [PDF]

Gland Surg
Kwon HN, Kim HS, Shin SC, Cheon YI, Kim BH, Jeon YK, Kim M, Kim K, Hwangbo L, Lee BJ.   +9 more
europepmc   +1 more source