20 research outputs found
Customer Satisfaction
The purpose of this research was to identify the enlargement of sales in Nawton through customer satisfaction. The author was chosen this topic as the main aim of every firm in to increase the sales by various methods. To get into deeper the author has made some questionnaires to the customer were the author got various responds from each customer. The author interviewed 10 customers and according to the response from the customer the author was able to get the key findings. The context which thought the author to choose this topic because there were a lots bad customer experience from the authors friends and thus the author though the dominos can have a rapid increase in the sale if they improve their service towards the customers. Some customers were like the price in the dominos for the products are high and thus the students shall be provided discount with the ID cards and some customers are happy with the current price. The other recommendation was to hire more full time employees to the dominos as the store is running out of full time employees
Nano-LiNi0.5Mn1.5O4 spinel: a high power electrode for Li-ion batteries
Disordered and ordered forms of nano-Li[Ni0.5Mn1.5]O-4 spinel, have been prepared by a one-pot resorcinol-formaldehyde synthesis. Lithium intercalation into disordered nano-Li[Ni0.5Mn1.5]O-4 (delta) reveals good rate capability and cycling stability. It delivers 95.5% of the capacity at a rate of 10C (1500 mA g(-1)) and 88% at 20C (3000 mA g(-1)) compared with the capacity at low rate (0.2C). A capacity retention on cycling of 99.97% per cycle at 1C rate has also been observed. The superior electrochemical behaviour of disordered nano-Li[Ni0.5Mn1.5]O4-delta has been correlated with AC impedance data, which suggest a modified surface for the nanomaetrial prepared using the resoreinol-formaldehyde route compared with micron sized materials prepared by conventional solid state synthesis.</p
Synthesis of novel quinaldine-based squaraine dyes: effect of substituents and role of electronic factors
Condensation of squaric acid with quinaldinium salts containing electron-donating substituents gave only the semisquaraines. However, with salts possessing electronegative and electron-withdrawing groups, the squaraine dyes were isolated in quantitative yields. The semisquaraines formed undergo condensation with highly nucleophilic salts yielding the unsymmetrical squaraine dyes. These results demonstrate the role of electronic factors and provide valuable information for the design of efficient squaraine-based sensitizers that can have potential applications in photodynamic therapy
Chiral supramolecular assemblies of a squaraine dye in solution and thin films: concentration-, temperature-, and solvent-induced chirality inversion
We prepared novel cholesterol-appended squaraine dye 1 and model squaraine dye 2 and investigated their aggregation behavior in solution and thin films using photophysical, chiroptical, and microscopic techniques. Investigations on the dependence of aggregation on solvent composition (good/poor, CHCl3/CH3CN) demonstrated that squaraine dye 1 forms two novel H-type chiral supramolecular assemblies with opposite chirality at different good/poor solvent compositions. Model compound 2 formed J-type achiral assemblies under similar conditions. The supramolecular assembly of 1 observed at lower fractions of the poor solvent could be assigned to the thermodynamically stable form, while a kinetically controlled assembly is formed at higher fractions of the poor solvent. This assignment is evidenced by temperature- and concentration-dependent experiments. With increasing temperature, the chirality of the kinetically controlled aggregate was lost and, on cooling, the aggregate with the opposite chirality was formed. On further heating and cooling the aggregates thus formed resulted in no significant changes in chirality, that is they are thermodynamically stable. Similarly, at lower concentrations, the thermodynamically stable form exists, but at higher concentration aggregation was found to proceed with kinetic control. Based on these observations it can be assumed that formation of the kinetically controlled assembly might be largely dependent on the presence of the nonpolar cholesterol moiety as well as the amount of poor solvent present. However, under solvent-free conditions, structurally different aggregates were observed when drop cast from solutions containing monomer, whereas a left-handed CD signal corresponding to the thermodynamically controlled assemblies was observed from pre-aggregated solutions