نتایج جستجو برای: colorimetric characteristics
تعداد نتایج: 670206 فیلتر نتایج به سال:
The roots of the madder plant (Rubinia tinctorum) contain some pigments that can be used to produce the red dyes. In order to study the effect of salinity on alterations in the amount of plant pigment an experiment was conducted according to a completely randomized design with three replications. Based on the CIE XYZ color space model designed close to human color vision, the results showed tha...
in the present work, a simple and sensitive method was developed for determination of morphine and heroin using gold nanoparticles as resonance rayleigh scattering (rrs) and colorimetric technique’s probe. synthesized gold nanoparticles by sodium citrate reduction method have a negative charge layer on their surfaces because of self-assembled citrate anions on their surface. binding of morphin...
Objective This study aims to compare the accuracy of visual, quantitative gravimetric, and colorimetric methods used to determine blood loss during cesarean delivery procedures employing a hemoglobin extraction assay as the reference standard. Study Design In 50 patients having cesarean deliveries blood loss determined by assays of hemoglobin content on surgical sponges and in suction canisters...
A commercially prepared, dried colorimetric microdilution panel (Sensititre YeastOne Trek Diagnostic Systems, Cleveland, OH) was compared in three different laboratories with the Clinical and Laboratory Standards Institute (CLSI) reference microdilution method by testing 2 quality control strains, 25 reproducibility strains, and 404 isolates of Candida spp. against anidulafungin, caspofungin, a...
A rapid, sensitive and cost-effective method was developed for detection of foodborne pathogens, particularly Salmonella species. The method utilizes single stranded DNA (ssDNA) probes and non-functionalized gold nanoparticles to provide a colorimetric assay for the detection of PCR amplified DNA. Different food samples were tested with the PCR-based colorimetric assay parallel with the convent...
We investigate methods for the recovery of reflectance spectra from the responses of trichromatic camera systems and the application of these methods to the problem of camera characterization. The recovery of reflectance from colorimetric data is an ill-posed problem, and a unique solution requires additional constraints. We introduce a novel method for reflectance recovery that finds the smoot...
In this work we present different computational strategies for colorimetric characterization of scanners using multidimensional polynomials. The designed strategies allow us to determine the coefficients of an a priori fixed polynomial taking into account different color error statistics. Moreover, since there is no clear relationship between the polynomial chosen for the characterization and t...
The LCD Liquid Crystal Display technology is currently the best known of flat screens TVs. However, two innovative and advanced technologies are emerging to the public: the OLED Organic Lighting Emission Devices, and the NANOSP Nano Spectrum, also known as Quantum Dot. The aim of this paper is to present a photometric and colorimetric comparison between LCD, OLED and NANOSP. Radiometricspectrum...
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