Designing MV networks to meet quality of supply targets

Author(s):  
P.L. Clarkson
Keyword(s):  
2020 ◽  
Vol 214 ◽  
pp. 03017
Author(s):  
He JIANG ◽  
Yonghui CAO

Due to the dilemma of “new entry defects” in the newly established enterprises, they are limited in developing new resources and cannot meet the increasingly fierce competition needs. Therefore, it is necessary to establish a stable strategic partnership by seeking external organizations, so as to obtain the necessary resources for the growth and development of the enterprise itself. Based on Penrose’s theory of enterprise growth, this paper analyzes the relationship between the quality of supply chain relationship and the growth performance of start-ups from three aspects, in order to reveal the internal logic that the quality of supply chain relationship affects the growth performance of start-ups.


Logistics ◽  
2021 ◽  
Vol 5 (4) ◽  
pp. 69
Author(s):  
Anastasia D. Mitropoulou ◽  
Giannis T. Tsoulfas

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.


2011 ◽  
Vol 383-390 ◽  
pp. 5771-5777
Author(s):  
Yu Quan Ma ◽  
Li Hong Zhang ◽  
Shu Fen Han ◽  
Zhi Peng Lin

The constant voltage power supply with dual directional reversible PWM compensation has merits of high precision, high efficiency, small volume, and so on. To ensure the quality of supply, it is important to fix the value of inductance, capacitance in main circuit. From the angle of filtering, and through analysis of the circuit working, detailed formulas of the inductance and capacitance calculation are given and an example of it is given too. In parameters calculation, to reduce the volume, the filter inductance is taken a smaller value but the capacitance is taken a greater value; the DC smoothing capacitance should be chosen according to the amplitude limit of DC voltage rising in inversion, and should be taken as great as possible to maintain voltage stabilizing precision.


2017 ◽  
Vol 58 (1) ◽  
pp. 35-57
Author(s):  
Martin Chick

Abstract This article examines the change in the fundamental assumptions underpinning industrial policy from the mid-1970s in Britain. It necessarily contrasts the broadly supply-side concerns of industrial policy from the mid-1970s with the more demand-side concerns of the earlier ‘Golden Age’ period from 1945. Where in the earlier period the emphasis in industrial policy was on capital investment and the role of government in compensating for perceived market inefficiency, from the late 1970s this emphasis shifted to the need to improve the flexibility and quality of supply-side factors allied to a more optimistic view of the ability of the market to secure efficient outcomes.


2020 ◽  
Vol 29 (13) ◽  
pp. 2030011
Author(s):  
Jammy Ramesh Rahul ◽  
Chinmay Kumar Das ◽  
Kirubakaran Annamalai ◽  
Veeramraju Tirumala Somasekhar

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.


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