نتایج جستجو برای: selectivity analysis
تعداد نتایج: 2862509 فیلتر نتایج به سال:
Separation of Polycyclic Aromatic Hydrocarbons was performed by RP-HPLC using mixed micellar mobile phase. Effect of temperature, types and amounts of coorganic solvent in mobile phase on efficiency, asymmetry factor and selectivity factor showed that the appropriate condition for separation of these compounds was 3% isopropanol (V/V) as co-organic solvent in mobile phase at 40°C. Analysis of...
Pair-wise sequence alignment is the basic method of comparative analysis of proteins and nucleic acids. Studying the results of the alignment one has to consider two questions: (1) did the program find all the interesting similarities (“sensitivity”) and (2) are all the found similarities interesting (“selectivity”). Definitely, one has to specify, what alignments are considered as the interest...
Analytical Chemistry is a peer-reviewed research journal that explores the latest concepts in analytical measurements and the best new ways to increase accuracy, selectivity, sensitivity, and reproducibility.
This paper continues the empirical research line started by Crepon et al. (1998) about the impact of research and development on innovation and innovation on productivity of firms. In this paper we estimate a structural model using Asymptotic Least Squares (ALS) which corrects for selectivity and simultaneity biases taking in consideration the particular characteristics of the available data. W...
Analytical Chemistry is a peer-reviewed research journal that explores the latest concepts in analytical measurements and the best new ways to increase accuracy, selectivity, sensitivity, and reproducibility.
This paper describes a method for recognizing and measuring the motion of each individual leukocyte in microvessels from a sequence of images. A spatiotemporal image is generated whose spatial axes are parallel and vertical to vessel region contours. In order to enhance and extract only leukocyte traces with a tuned velocity range even under noisy background, we use a combination of a ltering p...
Analytical Chemistry is a peer-reviewed research journal that explores the latest concepts in analytical measurements and the best new ways to increase accuracy, selectivity, sensitivity, and reproducibility.
This research investigates learning motivation of young and old adults. In detail, we explore motives of young and old adults to participate in two ICT-course settings: e-learning and face-to-face courses. In a first study young (n = 53, M = 26.0 years) and old (n = 55, M = 69.8 years) participants of e-learning courses completed an online questionnaire on learning motivation and personality. I...
Analytical Chemistry is a peer-reviewed research journal that explores the latest concepts in analytical measurements and the best new ways to increase accuracy, selectivity, sensitivity, and reproducibility.
Bagasse as a real biomass was converted to hydrogen rich gas via catalytic supercritical water gasification process. To find the effect of Cu on selectivity of products, Cu promoted Ni-γAl2O3 catalysts were prepared with 1 to 20wt% Ni and 0.5 to 10wt% Cu loadings via impregnation method. Catalysts were characterized by ICP, BET, XRD, H2 chemisorption and TEM technique as well CHNS analysis was ...
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