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Experimental Methods for Engineers

Predicting mobile wallet resistance: A two-staged structural equation modeling-artificial neural network approach

An IoT-based mobile gateway for intelligent personal assistants on mobile health environments

A Systematic Literature Review on Applying CRISP-DM Process Model

Examining actual consumer usage of E-wallet: A case study of big data analytics

Nowadays, advertisers and content publishers are constantly struggling to find the best advertising strategies to promote their services. They need to be able to reach the target population that is potentially interested in their products or services, without being too tiresome, and to deliver the content properly in order to capture users' attention. In this paper we describe a system that uses pervasive computing technologies for advertising purposes. It uses contextual information and personal interactions to delivered ads to individuals and to support socially-aware content selection to best fit users' interests in a public place. Based on personal interactions, the system builds an up-to-date social model that combines information about categories and ads the individual users' accessed and contextual information. This model, combined with the ads characterization and financial issues, supports the decision of which ad will be presented at each moment. Based on these principles, an advertising system was developed and evaluated. Initial results indicate that this can be an interesting approach to improve the usefulness of pervasive advertising systems for both individuals and people in public spaces.

Using pervasive computing technologies to deliver personal and public ads in public spaces

In this paper, an experimental investigation was performed of the thermal performance of different working fluids in thermosyphons that can be used in thermal control of electronic equipment. The working fluids were considered acetone, water, ethanol, and methanol. The thermosyphon are manufactured of copper with an outer diameter of 9.45 mm, an inner diameter of 7.75 mm, a total length of 200 mm, whereas an evaporator of 80 mm length, an adiabatic region of 20 mm in length and a condenser of 100 mm in length. They were loaded with 1.39 ml of the working fluid, corresponding to a filling ratio of 40% of the evaporator volume. Experimental tests were performed in a vertical position considering thermal loads between 5W and 25W. The thermosyphons operated satisfactorily in all the tests. The operating temperature distribution as a function of time and the heat resistance behavior as a function of power dissipation have been presented for each analyzed working fluid. These results indicated that acetone is the working fluid that has the best thermal performance.

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Thermal performance of thermosyphon for different working fluids

A Pervasive System Architecture for Smart Environments in Internet of Things Context

https://www.techscience.com/energy/v118n1/40573/pdf

Experimental Thermal Performance of Different Capillary Structures forHeat Pipes

The digitization of physical wallets into mobile applications is a promising trend, namely for payments, personal identification, and for grouping marketing items or digital tickets. Mobile digital services emerge on these areas promising to bring ease and convenience for wallet owners and, for place owners, lower costs on payment processing fees, increased service efficiency and a closer relation with customers. However, there are several challenges, like the users’ acceptance, security concerns and lack of interoperability between wallet services, that delay a significant impact on persons’ lives. On this paper, we present the requirements elicitation for a holistic mobile wallet ecosystem.

Patrick Santos

Papers

Using pervasive computing technologies to deliver personal and public ads in public spaces

Thermal performance of thermosyphon for different working fluids

A Pervasive System Architecture for Smart Environments in Internet of Things Context

Experimental Thermal Performance of Different Capillary Structures forHeat Pipes

Requirements Elicitation for a Holistic Mobile Wallet Ecosystem.