Photomediated synthesis is a reliable, high yield method for the production of a variety of morphologies of silver nanoparticles. Here, we report synthesis of silver nanoprisms and nanodecahedra with tunable sizes via control of the reaction temperature and the irradiation wavelength. The results show that shorter excitation wavelengths and lower reaction temperatures result in high yields of n...

A lot of absorption lines are in the bluewards of Lyα emission line of quasar which is well-known as Lyαforest. Most of absorption lines in this forest belong to the Lyα absorption of the neutral hydrogen in the inter-galactic medium (IGM). For high redshift quasars and in the continuum with low and medium resolution, there are no many regions without absorption, so that, the quasar continuum i...

We characterize the terahertz (THz) generation of N-benzyl-2-methyl-4-nitroaniline (BNA), with crystals ranging in thickness from 123-700 {\mu}m. compare excitation using 800-nm and 1250 to 1500-nm wavelengths. Pumping BNA wavelengths longer near-infrared results a broad spectrum, producing out 6 THz 100-fs pump, provided crystal is thin enough. ~200 {\mu}m or thinner are required produce spect...

comes “supersized,” the notion that less is more may seem terribly outof-date. But when it comes to calories, eating fewer may very well turn out to be a prescription for a longer—and healthier—life. The topic of calorie restriction has gotten a lot of attention recently in consumer publications and scientific journals alike. However, the theory that eating fewer calories may promote longevity ...

The interest in the eye’s off-axis aberrations has increased strongly. On-axis the conversion of the aberration magnitude between different wavelengths is well known. We verified if this compensation is correct also for off-axis measurements by building a wavelength tunable peripheral Hartmann–Shack sensor and measuring 11 subjects out to 30° in the horizontal visual field. At the fovea, an ave...

conclusions our study showed superiority of off-pump cabg regarding lvef, rvef and valves regurgitations. future studies with prospective structure, accurate randomization, longer follow up duration, and larger sample size are needed. results one hundred eighteen patients with the mean age of 59.47 ± 9.68 years were included (81 male and 37 female). on-pump cabg was done on 84 patients and off-...

Cadmium sulfide (CdS) photosensitizers were successfully formed on the mesoporous titania films using the successive ionic layer adsorption and reaction (SILAR) method in five cycles, and the effects of particles size distribution and their occupied surface area on the morphology, topography, optical property, and photovoltaic performance were investigated. Scanning electron microscope (SEM) im...

Abstract Understanding the origins of small-scale flats CCDs and their wavelength-dependent variations plays an important role in high-precision photometric, astrometric, shape measurements astronomical objects. Based on unique flat data 47 narrowband filters provided by JPAS-Pathfinder, we analyze as a function wavelength. We find moderate (from about 1.0% at 390 nm to 0.3% 890 nm) among diffe...