This paper explores a new way to reduce the readout noise for CMOS image sensors by using a typical 4T pixel embedding a PMOS source follower with reduced oxide thickness and gate dimensions. This approach is confirmed by a test chip designed in a 180 nm CIS CMOS process, and embedding small arrays of the proposed new pixels together with state-of-the-art 4T pixels for comparison. The new pixel...

A bstract PandaX-4T is a ton-scale dark matter direct detection experiment using dual-phase TPC technique at the China Jinping Underground Laboratory. Various ultra-low background technologies have been developed and applied to material screening for PandaX-4T, including HPGe gamma spectroscopy, ICP-MS, NAA, radon emanation measurement system, krypton assay station, alpha system. Low materials ...

Introduction: For cognitive neuroscience research Transcranial Magnetic Stimulation (TMS) is a useful method for probing brain connectivity, combined with fMRI. Standard fMRI experiments interleaved with TMS are possible as proven from several studies [1-2], but to date, there are no specific studies that thoroughly characterize and discuss all risks related to concurrent TMS/fMRI. An important...

Opto-electronic models that seek to predict the performance of perovskite and tandem solar cells (PSCs/TSCs) often keep optical recombination parameters (ORPs) constant in subsequent studies. During fabrication PSCs, however, these can vary significantly. To account for inherent variability, we develop a comprehensive opto-electronic-electric model current-voltage characteristics four-terminal ...

¿Cuál es el perfil de los partidarios gobiernos catalogados como populistas? En específico estudio caso: ¿quiénes apoyan a la 4T (Cuarta Transformación)? A partir un análisis econométrico, modelos ordered probit, este trabajo uno primeros que —con datos duros y actuales— argumenta, ofreciendo evidencia empírica sólida, del partidario obedece una mezcla cierto populismo lealtad racional votante....

K. McMahon, A. Pringle, M. Eastburn, D. Maillet Centre for Magnetic Resonance, University of Queensland, Brisbane, Queensland, Australia Introduction: Echo planar imaging (EPI) is a rapid sequence that has been applied with great success to diffusion, perfusion and functional magnetic resonance imaging (fMRI) of the brain. However, the oscillating gradients in EPI can produce artefacts such as ...

Filling carbon nanotubes with molecules is a route for the development of electronically modified one-dimensional hybrid structures which interplay between electronic structure and key factor. Tuning these energy levels external parameters an interesting strategy engineering new devices materials. Here we show that system composed by quaterthiophene (4T) confined in single-walled nanotubes, pre...