A pot experiment was carried out to determine the effect of foliage spraying of silicon (Si) on growth and ornamental characteristics of calendula grown under salt stress and greenhouse conditions. A factorial experiment based on completely randomized design was conducted with 3 levels of Si (0, 50 and 100 mg/l) and 3 levels of NaCl (0, 100 and 200 mM) with 4 replications. At flowering stage, S...

Rapid acquisition of chlorophyll content in maize leaves is great significance for timely monitoring plant health and guiding field management. In order to accurately detect the relative summer study responsiveness vegetation indices SPAD (soil analyzer development) values at different spatial vertical scales, this paper established a prediction model scales based on UAV multispectral images. T...

We present the design and experimental characterization of a new InGaAs/InP single-photon avalanche diode (SPAD), with two different diameters: i) 10 ?m device, suitable for optical fiber-based quantum applications; ii) 25 one, more appropriate free-space applications. Compared to previous generation, we improved double zinc diffusion optimized layer structure. achieved low dark count rate, aro...

The objective of this paper is to evaluate the yield, quality and unit production cost broccoli grown under green manure, vermicompost chemical fertilization. For purpose, plants were cultivated as follows: (i) Chemical fertilization (CF), (ii) Vermicompost (V), (iii) (VeV) in common vetch land a pre-plant (iv) Vetch (Ve) pre-plant. Curd yield (g plant−1), SPAD, vitamin C (mg 100 g−1), total ph...

a pot experiment was carried out to determine the effect of foliage spraying of silicon (si) on growth and ornamental characteristics of calendula grown under salt stress and greenhouse conditions. a factorial experiment based on completely randomized design was conducted with 3 levels of si (0, 50 and 100 mg/l) and 3 levels of nacl (0, 100 and 200 mm) with 4 replications. at flowering stage, s...

It is not widely appreciated that many subtleties are involved in the accurate measurement of intensity-correlated photons; even for the original experiments of Hanbury Brown and Twiss (HBT). Using a monolithic 4 x 4 array of single-photon avalanche diodes (SPADs), together with an off-chip algorithm for processing streaming data, we investigate the difficulties of measuring second-order photon...

Nondestructive proximal sensors can be an efficient source of information N status in crops for localized and rapid adjustment fertilization applications. The aim this study was to compare two transmittance/reflectance-based (SPAD, ASD) a florescence-based sensor (Multiplex) their ability measure content corn (Zea mays L.), spring winter barley (Hordeum vulgare rye (Secale cereale both at the l...

We designed and characterized Silicon Single-Photon Avalanche Diodes (SPADs) fabricated in a high-voltage 0.35 μm CMOS technology, achieving state-of-the-art low Dark Counting Rate (DCR), very large diameter, and extended Photon Detection Efficiency (PDE) in the Near Ultraviolet. So far, different groups fabricated CMOS SPADs in scaled technologies, but with many drawbacks in active area dimens...

Sequence analysis upstream from the subtilin structural gene (spaS) in Bacillus subtilis ATCC 6633 revealed several open reading frames, SpaB, SpaC, and SpaD. SpaB, consisting of 599 amino acid residues, shows excellent homology with a variety of membrane translocator proteins, such as HlyB from Escherichia coli and some mammalian multidrug resistance proteins. When the spaB gene was interrupte...

In recent years significant progress has been made in near-infrared single photon detection using Geiger-mode InPbased single photon avalanche diodes (SPADs). A more detailed understanding of these detectors with regard to device design, material growth and device fabrication has led to continual performance improvements. A variety of circuits for enabling SPAD Geiger-mode operation have been p...