We present a 72 × 60, angle-sensitive single photon avalanche diode (A-SPAD) array for lens-less 3D fluorescence lifetime imaging. An A-SPAD pixel consists of (1) a SPAD to provide precise photon arrival time where a time-resolved operation is utilized to avoid stimulus-induced saturation, and (2) integrated diffraction gratings on top of the SPAD to extract incident angles of the incoming ligh...

Single molecule localisation microscopy (SMLM) has become an essential part of the super-resolution toolbox for probing cellular structure and function. The rapid evolution of these techniques has outstripped detector development and faster, more sensitive cameras are required to further improve localisation certainty. Single-photon avalanche photodiode (SPAD) array cameras offer single-photon ...

In many approaches to recommendation diversification, a recommender scores items for relevance and then re-ranks them to balance relevance with diversity. In intent-aware diversification, diversity is formulated in terms of coverage of aspects, where aspects are either explicit such as movie genres or implicit such as the latent factors found during matrix factorization. Typically, the same set...

BACKGROUND The aim of extracorporeal albumin dialysis (ECAD) is to reduce endogenous toxins accumulating in liver failure. To date, ECAD is conducted mainly with the Molecular Adsorbents Recirculating System (MARS). However, single-pass albumin dialysis (SPAD) has been proposed as an alternative. The aim of this study was to compare the two devices with a prospective, single-centre, non-inferio...

Abstract The objective of this research was to evaluate the technical feasibility SPAD index in diagnosis N status ‘Esmeralda’ peach. field trial, with five rates applied soil (0, 40, 80, 120 and 160 kg ha-1 as urea form) conducted a randomized block design four replications. During years 2014, 2015, 2016 2017, readings were carried out Minolta SPAD-502 chlorophyll meter, leaf middle part, 40 l...

Environmental conditions and photoperiod length drive the seasonal variability of gas exchange in plants. Still, little is known about trees’ adaptation to climate change, expressed as a delay decreasing photosynthetic capacity at end growing season. We investigated effect elevated air humidity (RH) sampling period (from July September) on net photosynthesis (A n ), dark respiration (R), daytim...

ABSTRACT The current recommendations for nitrogen (N) doses may not contemplate the complex dynamics of N in soil, what imply insufficiency to crop demand. This study aimed evaluate use two portable chlorophyll meters (Minolta SPAD 502 and ClorofiLOG model CFL 1030), after defining sufficiency index (NSI), estimate fertilization factor modern bean genotypes. A block design was used, with four r...

SPAD-based solid state CMOS image sensors utilising analogue integrators have attained deep sub-electron read noise (DSERN) permitting single photon counting (SPC) imaging. A new method is proposed to determine the read noise in DSERN image sensors by evaluating the peak separation and width (PSW) of single photon peaks in a photon counting histogram (PCH). The technique is used to identify and...