Using a Modified SERVQUAL Approach to Assess the Quality of Supply Chain Services in Greek Online Supermarkets

Background: The purpose of this paper is to study customer satisfaction concerning orders from online supermarkets, which have recently boomed to fulfil the increased needs of customers during the COVID-19 pandemic. The service quality, as well as aspects of the logistics efficiency, are being examined, and the gaps between the expectations of people using these services and their perceptions about the received services are being evaluated. Methods: A modified approach of the well-known model SERVQUAL is suggested and used in the case of Greek online supermarkets. Thus, an initial contribution of this paper is the formulation of a framework which can be used to assess the quality of B2C logistics services. Results: The results show that customers’ expectations are exceeding their experiential perceptions in all the examined fields, and therefore there is room for substantial improvement. The study identified areas in which supermarkets’ online shops are close to meeting customer expectations and areas in which they fall far short. Conclusions: Competition is expected to become more intense and efficient supply chains that provide services of high quality will have a determinant role to play. Moreover, online supermarkets will have to rethink of their omni-channel structures to maintain and increase their market share. This is of particular importance during turbulent times such as the ones we are experiencing now.

Perfprmance Analysis on Power Flow of a Three-Feeder/Multi-Bus Distribution System Using Gupqc

Power flow in any distribution system either it is multi-bus or three feeders explain by a Generalized Unified Power Quality Conditioner i.e. GUPQC.On the one side, that is DC side is connected with the common DC link capacitor which is also coupled consecutively through 3 voltage source converters. This is the simple block realization of GUPQC. This multi feeder is explained where one feeder is controlled by a parallel compensator and the next two feeders are controlled through the proposed series compensator. This technique i.e. GUPQC makes the feeder distribution free from harmonic and voltage-current compensation etc randomly. Also, it can improve the quality of supply power given to another consumer. A vast and huge study of Simulation is helped to how MATLAB/SIMULINK is used for making this type of GUPQC. Disrupted Voltage, current, and power quality issues can be easily improved in this technique.

SUPPLIER FAIRNESS PERCEPTION AS A MEDIATING FACTOR IN THE SUPPLIER ROLE PERFORMANCE—THE RELATIONSHIP QUALITY OF SUPPLY CHAIN

Suppliers play an important role in the agricultural product supply chain and their behavior could influence significantly relationship quality of supply chain. However, the role performance of agricultural product suppliers is usually ignored, which affects the decision-making establishment of relationship quality among supply chain members. In addition, fairness perception by agricultural product suppliers will also affect the quality of supply chain relationships. This work takes the agricultural product supply chain as the research object and investigates how the supplier role performance affects the relationship quality of supply chain. An empirical study is conducted through questionnaire-related data based on the model. The research results show that supplier role performance has a significant positive effect on the relationship quality, and the distributive fairness of supplier has a significant intermediary effect on both supplier role performance and relationship quality of the supply chain. In addition, price satisfaction has a positive impact on commitments when considering the fairness perception of suppliers.

RETAILERS’ PERCEPTION TOWARDS PRODUCT DEMAND AND SALES DURING THE PANDEMIC PERIOD OF COVID19

ABSTRACT FMCG sector is the 4th largest sector of the Indian economy. The purpose of this study is to analyse the change in sale of various commodities and change in purchase of consumers through retailer's perception during the pandemic COVID 19. In a shot to slow the unfold of virus, several countries have obligatory temporary closures to non-essential stores, bars and venues likewise as put a ban on massive public gatherings. As such, the marketplace for FMCG faces sizable changes and changes in demand for client grocery (CPG). The study focuses primarily on the retailer perception of consumers and market behaviour towards choose fast paced trade goods. Total of 120 forms were collected using Random sampling. A logistic Regression was used to identify the factors which have an effect in the retailers’ business during this pandemic situation. The four most important factors that are important for the retail outlets to survive in the pandemic situations are Quality of supply, Years of existence, delivery services avialable and product demand. In food and beverages, staples has the highest demand, in home care the toilet care has the highest demand and in personal care hand sanitizer has the highest demand. We also find a change in trend of purchase by the consumers, where consumers prefer larger quantity purchase and monthly purchase instead of frequent or fortnightly purchases.

The influence of environmental uncertainty, organizational structure and distribution network competence on the quality of supply chain management information systems

This study aims to find empirical evidence regarding the factors that affect the quality of information systems and the quality of supply chain management as seen from the environmental uncertainty of the organizational structure and the distribution network competence in manufacturing companies in Medan, Indonesia. The research method used is quantitative and verification that aims to determine the relationship between variables through a hypothesis testing. The data used are primary data using a questionnaire aimed at functional managers of marketing managers and production managers with a Likert scale. The study uses a sampling technique through a census of the entire population as a unit of analysis as many as 206 managers spread across 103 manufacturing companies in the city of Medan. Data analysis was performed through multiple linear regression analysis. The results showed that environmental uncertainty, organizational structure, and distribution network competence partially and simultaneously affected the quality of supply chain management information systems in manufacturing companies.

New Reactive Power Compensation Strategies for Railway Infrastructure Capacity Increasing

In AC railway electrification systems, the impact of reactive power flow in the feeding voltage magnitude is one aspect contributing to the quality of supply degradation. Specifically, this issue results in limitations in the infrastructure capacity, either in the maximum number of trains and in maximum train power. In this paper, two reactive power compensation strategies are presented and compared, in terms of the theoretical railway infrastructure capacity. The first strategy considers a static VAR compensator, located in the neutral zone and compensating the substation reactive power, achieving a maximum capacity increase up to 50% without depending on each train active power. The second strategy adapts each train reactive power, achieving also a capacity increase around 50%, only with an increase of the train apparent power below 10%. With a smart metering infrastructure, the implementation of such compensation strategy is viable, satisfying the requirements of real-time knowledge of the railway electrification system state. Specifically, the usage of droop curves to adapt in real time the compensation scheme can bring the operation closer to optimality. Thus, the quality of supply and the infrastructure capacity can be increased with a mobile reactive power compensation scheme, based on a smart metering framework.

Impedance Source-based Multilevel Inverter: A State-of-the-Art Review

Impedance source-based multilevel inverters are becoming popular for emerging power generation technologies such as fuel cells, photovoltaic, and wind turbines. It is one of the most promising power electronic interfaces for single stage DC/AC conversion with inherent buck-boost capability. Therefore, in this paper, an extensive review of emerging impedance source-based multilevel inverter (Z-MLI) topologies is presented. These topologies are developed by the combination of impedance source network and multilevel inverter (MLI) with the merits of high voltage gain, enhanced reliability due to shoot-through immunity, improved input voltage regulation, reduced filter size, and better quality of supply. Most of the recent Z-MLI topologies are based on quasi-Z-source network which operates with continuous input current. In order to identify a suitable topology, an exhaustive comparison is made with various configurations of Z-MLIs in terms of component count, boost gain, switching stress, and control complexity.