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Volume 11 ~ Issue 10

 

 


Volume 11 ~ Issue 10

Research Article  open access
Modeling of Urban Drinking Water with Genetic Expression Programming
Behzat Aslan, Fevzi Onen
Turkey
Research Inventy: International Journal of Engineering & Science , Volume 11 ~ Issue 10

Abstract

Total drinking water needs consist of domestic water needs, trade, industry, service sector, tourism, animal water needs, special needs and water losses. Although the estimation methods used in determining the need of drinking water used by the settlements or in the future will be used with the amount of population, it is a fact that there are many parameters affecting the water consumption today. In this study, parameters such as water amount, water loss, accrued, temperature, humidity, population, rainfall, development status and number of water subscribers were used for Diyarbakır City among 2005-2014 years. With these parameters affecting water demand and drinking water consumption, models based on Genetic Expression Programming......

Keywords: Drinking Water; Water Demand; Genetic Expression Programming; Water Loses.


Research Article  open access
Performance Evaluation of a Microstrip Wearable Antenna considering On-Body Curvature
Rafael Saraiva Campos, Felipe da Rocha Henriques
Brazil
Research Inventy: International Journal of Engineering & Science , Volume 11 ~ Issue 10

Abstract

This work evaluates the effects of the mechanical curvature imposed on a textile inset-fed microstrip patch antenna positioned over a human head phantom, simulating a typical situation in Wireless Body Area Network (WBAN) applications. Initially, the antenna geometrical parameters are defined under ideal free-space conditions, assuming a 5.8 GHz centre frequency. Following, this work assesses the effects of body proximity and antenna curvature on operational characteristics, such as resonant frequency, bandwidth, and radiation pattern. The antenna design and evaluation employs finite-element method models. Most of the antenna geometrical parameters are analytically defined, but some are obtained using Nelder-Mead optimization. Furthermore, the resulting Specific Absorption Rate on the head is calculated......

Keywords: Wireless Body Area Network, health monitoring, microstrip antenna, specific absorption rate, Nelder-Mead optimization.


Research Article  open access
The effect of customer experience and perceived value on customer satisfaction: a case study of insurance service in Vietnam
Nguyen Le Ngoc Tram, Tran Thi Ha Quyen
Vietnam
Research Inventy: International Journal of Engineering & Science , Volume 11 ~ Issue 10

Abstract

International trade has facilitated the boom of many businesses, which also means that the competition is getting tougher and tougher among businesses. A business that wants to grow sustainably and compete in a healthy way is trying hard to create different experiences for its customers. They are constantly innovating to increase the perceived value for their customers which in turn can strengthen their satisfaction and loyalty. In the context of the world's economic difficulties because of the Covid-19 epidemic, the insurance service industry is also facing many challenges......

Keywords: customer experience, perceived value, customer satisfaction, customer loyalty, insurance service.