Publications
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Raising the threshold, increasing coordination? Mechanical and psychological effects of the electoral threshold in fragmented Belgium Vrije Universiteit Brussel
Polarity-Induced Threshold Voltage Shift in Ovonic Threshold Switching Chalcogenides and the Impact of Material Composition Interuniversity Microelectronics Centre KU Leuven
Amorphous chalcogenide-based ovonic threshold switch (OTS) selectors are an important part of the crosspoint memory arrays. It is known that the threshold voltage (V-th) of the OTS device can be affected by operating conditions, such as pulse amplitude and ramp rate. Herein, the impact of pulse polarity on OTS parameters is investigated. Recent findings on the polarity-induced V-th shift observed in SiGeAsTe and SiGeAsSe materials are ...
Analytical model for threshold voltage in UTBB SOI MOSFET in dynamic threshold voltage operation KU Leuven
© 2017, Brazilian Microelectronics Society. All rights reserved. This paper presents an analytical model to determine the threshold voltage in Ultrathin Body and Buried Oxide Fully Depleted Silicon on Insulator (UTBB FD SOI) MOSFETs operating in dynamic threshold (DT) voltage modes. The analytical model is based on implementing the quantum confinement effect and the DT restriction. The results show that the proposed analytical model in its ...
L-theanine intake increases threshold for limbic seizures but decreases threshold for generalized seizures Vrije Universiteit Brussel
L-theanine, an ethylamide derivate of glutamate found peculiarly in green tea, has been shown to exert beneficial actions in animal models for several neurological disorders. We here studied for the first time the effect of L-theanine intake on seizure susceptibility, using an acute pilocarpine and pentylenetetrazol (PTZ) mouse model for studying respectively limbic seizures and primarily generalized seizures. Moreover, we studied the effect of ...
Natural background levels and threshold values for groundwater in fluvial Pleistocene and Tertiary marine aquifers in Flanders, Belgium Ghent University
Aquifers from the same typology can have strongly different groundwater chemistry. Deducing the groundwater quality of less well-characterized aquifers from well-documented aquifers belonging to the same typology should be done with great reserve, and can only be considered as a preliminary approach. In the EUU+2019s 6th FP BRIDGE project U+201CBackground cRiteria for the IDentification of Groundwater thrEsholdsU+201D, a methodology for the ...
On the optimal z-score threshold for SISCOM analysis to localize the ictal onset zone KU Leuven
BACKGROUND: In epilepsy patients, SISCOM or subtraction ictal single photon emission computed tomography co-registered to magnetic resonance imaging has become a routinely used, non-invasive technique to localize the ictal onset zone (IOZ). Thresholding of clusters with a predefined number of standard deviations from normality (z-score) is generally accepted to localize the IOZ. In this study, we aimed to assess the robustness of this parameter ...
Should malaria treatment be guided by a point of care rapid test? A threshold approach to malaria management in rural Burkina Faso Institute of Tropical Medicine
BACKGROUND: In Burkina Faso, rapid diagnostic tests for malaria have been made recently available. Previously, malaria was managed clinically. This study aims at assessing which is the best management option of a febrile patient in a hyperendemic setting. Three alternatives are: treating presumptively, testing, or refraining from both test and treatment. The test threshold is the tradeoff between refraining and testing, the test-treatment ...
A combinatorial study of SiGeAsTe thin films for application as an Ovonic threshold switch selector Interuniversity Microelectronics Centre Ghent University
In this paper, we investigate the thermal stability of a wide range of ternary and quaternary (Si)GeAsTe alloy thin films. These type of materials are reported to show Ovonic threshold switching, which means they conduct the current above a specific threshold voltage and are not conducting at lower voltages, making them ideal as a selector element for crosspoint memory devices. For threshold switching to occur in these chalcogenides, the ...
Sensititity of the stability threshold in linearized rotordynamics Ghent University
Rotors exposed to lateral vibration can become unstable at a certain speed due to rotor internal damping. This stability threshold speed is unique and it is impossible to rotate above the threshold. In this paper, a rotor is treated as a linear speed dependent system and inertia, stiffness, gyroscopic and damping forces are included. In order to find the stability threshold, the multiple degree of freedom equations of motion are decoupled into a ...