3 research outputs found
AN INTEGRATED FRAMEWORK FOR QUALITY EVALUATION OF FRUITS AND VEGETABLE STORE LOCATED IN THE SUPERMARKET UNDER UTOPIAN ENVIRONMENT
Customer satisfaction depends on the availability of different varieties of fruits and vegetables in a supermarket store as well as the quality of this supermarket store for fruits and vegetables. The store may contain different variety of fruits and vegetables in a utopian environment. Apart from this, there are several quality parameters of a fruits and vegetable store. The quality evaluation of fruits and vegetable stores located in a supermarket is a big challenge for managerial personnel. Here, a quality evaluation framework is proposed for the fruits and vegetable store. The committee of experts identifies and finalizes the quality evaluation parameters through a brainstorming session. Fuzzy AHP is used to calculate the weights of evaluation parameters. A fuzzy TOPSIS generally ranks for the alternative stores. An improved fuzzy TOPSIS, which is named fuzzy k-TOPSIS, is proposed here to evaluate the quality of fruits and vegetable stores located in a supermarket. The fuzzy k-TOPSIS will provide rank as well as classification of the alternatives. A numerical example is demonstrated for a better understanding of the proposed framework
Crown Ether Nucleophilic Catalysts (CENCs): Agents for Enhanced Silicon Radiofluorination
New bifunctional phase transfer agents
were synthesized and investigated
for their abilities to promote rapid fluorination at silicon. These
agents, dubbed crown ether nucleophilic catalysts (CENCs), are 18-crown-6
derivatives containing a side-arm and a potentially nucleophilic hydroxyl
group. These CENCs proved efficacious in the fluorination of hindered
silicon substrates, with fluorination yields dependent on the length
of linker connecting the metal chelating unit to the hydroxyl group.
The efficacy of these CENCs was also demonstrated for rapid radiofluorination
under mild conditions for eventual application in molecular imaging
with positron emission tomography (PET). The hydrolysis-resistant
aryl silicon fragment is promising as a convenient synthon for labeling
potential PET radiotracers