Results 51 to 60 of about 1,054,818 (327)

Enhanced charge detection of spin qubit readout via an intermediate state

, 2012
We employ an intermediate excited charge state of a lateral quantum dot device to increase the charge detection contrast during the qubit state readout procedure, allowing us to increase the visibility of coherent qubit oscillations.
Aers, G. C., Bogan, A., Kam, A., Sachrajda, A. S., Studenikin, S. A., Thorgrimson, J., Wasilewski, Z. R., Zawadzki, P.   +7 more
core   +1 more source

Entrainment of noise-induced and limit cycle oscillators under weak noise [PDF]

, 2013
Theoretical models that describe oscillations in biological systems are often either a limit cycle oscillator, where the deterministic nonlinear dynamics gives sustained periodic oscillations, or a noise-induced oscillator, where a fixed point is ...
Alon, Uri, Jensen, Mogens H., Mitarai, Namiko   +2 more
core   +1 more source

Application of Computed Tomography Virtual Noncontrast Spectral Imaging in Evaluation of Hepatic Metastases: A Preliminary Study

Chinese Medical Journal, 2015
Objective: The objective was to qualitatively and quantitatively evaluate hepatic metastases using computed tomography (CT) virtual noncontrast (VNC) spectral imaging in a retrospective analysis.
Shi-Feng Tian, Ai-Lian Liu, Jing-Hong Liu, Mei-Yu Sun, He-Qing Wang, Yi-Jun Liu   +5 more
doaj   +1 more source

Quantum limit of optical magnetometry in the presence of ac-Stark shifts [PDF]

, 2000
We analyze systematic (classical) and fundamental (quantum) limitations of the sensitivity of optical magnetometers resulting from ac-Stark shifts. We show that in contrast to absorption-based techniques, the signal reduction associated with classical ...
Fleischhauer, M., Matsko, A. B., Scully, M. O.   +2 more
core   +3 more sources

Material imaging study of 3D printing materials for diagnostic radiology phantom development

Brazilian Journal of Radiation Sciences
The 3D printing techniques have found applications across diverse fields, significantly enhancing design and manufacturing processes. The impact of this growth is particularly notable in radiology, where 3D printing has been applied to developing quality
Marcus Oliveira, Matheus Savi, Adriano Vitor, Daniel Villani, Marco Andrade, Carlos Ubeda, Mauricio Mitsuo Monção   +6 more
doaj   +1 more source

Optimisation of the bone single photon emission computed tomography in oncology patients

Journal of Health Sciences
Introduction: The introduction of hybrid imaging systems such as Single Photon Emission Computed Tomography/Computed Tomography (SPECT/CT) has completely changed the scanning procedure of conventional diagnostic nuclear medicine protocols.
Nusret Salkica, Amela Begić, Adnan Beganović, Fuad Julardžija, Adnan Šehić, Halil Ćorović, Safet Hadžimusić, Amra Skopljak-Beganović   +7 more
doaj   +1 more source

Automatic Quantification of Local Plaque Thickness Differences as Assessed by Serial Coronary Computed Tomography Angiography Using Scan-Quality-Based Vessel-Specific Thresholds

Cardiology and Therapy, 2023
Introduction The use of serial coronary computed tomography angiography (CCTA) allows for the early assessment of coronary plaque progression, a crucial factor in averting major adverse cardiac events (MACEs). Traditionally, serial CCTA is assessed using
Finn Y. van Driest, Alexander Broersen, Rob J. van der Geest, J. Wouter Jukema, Arthur J. H. A. Scholte, Jouke Dijkstra   +5 more
doaj   +1 more source

The Quantitative Effect of Noise and Object Diameter on Low-Contrast Detectability of AAPM CT Performance Phantom Images

Atom Indonesia, 2023
Parameters for determining computed tomography (CT) image quality include noise and low-contrast detectability. Studies on low-contrast detectability using the AAPM CT performance phantom have several limitations, such as the absence of quantitative ...
E. Setiawati, C. Anam, W. Widyasari, G. Dougherty   +3 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Two-way Quality Assessment Approach for Tumour Detection using Free-hand Strain Imaging [PDF]

, 2014
A novel two-way image quality assessment method is proposed for free-hand strain imaging. In elasticity imaging, tissue with different stiffness exhibit varying contrast in the strain images and detectability of a lesion is measured using elastographic ...
Alomari, Z, Freear, S, Harput, S, Hyder, S   +3 more
core   +1 more source