62 research outputs found
Recent Advances in Indoor Localization Systems and Technologies
Despite the enormous technical progress seen in the past few years, the maturity of indoor localization technologies has not yet reached the level of GNSS solutions. The 23 selected papers in this book present the recent advances and new developments in indoor localization systems and technologies, propose novel or improved methods with increased performance, provide insight into various aspects of quality control, and also introduce some unorthodox positioning methods
an important partnership for decades
Graesch, J. P., Hensel-Börner, S., & Henseler, J. (2021). Information technology and marketing: an important partnership for decades. Industrial Management and Data Systems, 121(1), 123-157. https://doi.org/10.1108/IMDS-08-2020-0510Purpose: The enabling technologies that emerged from information technology (IT) have had a considerable influence upon the development of marketing tools, and marketing has become digitalized by adopting these technologies over time. The purpose of this paper is to demonstrate the impacts of these enabling technologies on marketing tools in the past and present and to demonstrate their potential future. Furthermore, it provides guidance about the digital transformation occurring in marketing and the need to align of marketing and IT. Design/methodology/approach: This study demonstrates the impact of enabling technologies on the subsequent marketing tools developed through a content analysis of information systems and marketing conference proceedings. It offers a fresh look at marketing's digital transformation over the last 40 years. Moreover, it initially applies the findings to a general digital transformation model from another field to verify its presence in marketing. Findings: This paper identifies four eras within the digital marketing evolution and reveals insights into a potential fifth era. This chronological structure verifies the impact of IT on marketing tools and accordingly the digital transformation within marketing. IT has made digital marketing tools possible in all four digital transformation levers: automation, customer interaction, connectivity and data. Practical implications: The sequencing of enabling technologies and subsequent marketing tools demonstrates the need to align marketing and IT to design new marketing tools that can be applied to customer interactions and be used to foster marketing control. Originality/value: This study is the first to apply the digital transformation levers, namely, automation, customer interaction, connectivity and data, to the marketing discipline and contribute new insights by demonstrating the chronological development of digital transformation in marketing.authorsversionpublishe
What is behind the brand? Social and environmental sustainability in the upstream phases of the denim value chain
The thesis aims to contribute to the literature of sustainability by undertaking a value chain perspective which asses the environmental and social sustainability practices and approaches adopted by the upstream suppliers within the italian denim value chian, the drivers in the industry and supplier' contribution in trasforming the denim industry in a more sustainable , traceable and transparent one. To achieve this aim, both a quantitative and explorative approach have been followed
Desenho de antenas para sensores passivos em materiais não convencionais
Doutoramento em Engenharia EletrotécnicaMotivado pela larga expansão dos sistemas RFID e com o desenvolvimento
do conceito de Internet das Coisas, a evolução no desenho e métodos de
produção de antenas em suportes de materiais alternativos tem tido uma
exploração intensiva nos últimos anos. Isto permitiu, não só o desenvolvimento
de produtos no campo da interação homem-máquina, mas também
tornar estes produtos mais pequenos e leves. A procura de novas técnicas
e métodos para produzir eletrónica impressa e antenas em materiais alternativos
e, portanto, uma porta aberta para o aparecimento de novas
tecnologias. Isto aplica-se especialmente no mercado dos sensores, onde
o peso, o tamanho, o consumo energético, e a adaptabilidade a diversos
ambientes, têm grande relevância. Esta tese foca-se no desenvolvimento de
antenas com suporte em materiais não convenvionais, como os já testados
papel e têxteis, mas também na exploração de outros, desconhecidos do
ponto de vista eléctrico, como a cortiça e polímeros biodegradáveis usados
em impressão 3D. Estes materiais são portanto usados como substrato, ou
material de suporte, para diversas antenas e, como tal, as propriedades electromagnéticas destes materiais têm de ser determinadas. Assim, e apresentado
neste documento uma revisão de métodos de caracterização de materiais,
bem como a proposta de um método baseado em linhas de trasmissão
impressas, e a respectiva caracterização electromagnética de diversos materiais.
Além disso, são propostos desenhos de antenas para diversos cenários
e aplicações utilizando os materiais anteriormente mencionados. Com esta
tese concluiu-se que a utilização de materiais alternativos e hoje uma realidade
e os resultados obtidos são muito encorajodares para o desenvolvimento
de um conjunto de sensores para aplicações RFID com uma grande
capacidade de integração.The advancement of the design and fabrication of antennas using textiles
or paper as substrates has rapidly grown motivated by the boom of RFID
systems and the developing concept of the Internet of Things. These advancements
have allowed, not only the development of products for manmachine
interaction, but also to make these products smaller and lighter.
The search for new techniques and methods to produce printed electronics
and antennas in alternative materials is therefore an open door for new
technologies to emerge. Especially in the sensors market, where weight,
size, power consumption and the adaptability to the target application, are
of great importance. This thesis focuses on the development of antenna
design approaches with alternative materials, such as the already tested
paper and textiles, but also others relatively unknown, such as cork and
biodegradable polymers used in 3D printing. These materials are applied to
act as substrates, or support structures for the antennas. Therefore, their
electromagnetic properties need to be determined. Due to that, a review
of electromagnetic characterization methods, as well as the proposal of a
custom method based on printed transmission lines, is presented in this document.
Besides, several antenna designs, for di erent application scenarios,
using the previously mentioned materials, are proposed. With this thesis it
was proved that it is possible to develop passive sensors in di erent alternative
materials for RFID applications and others, which shows great promise
in the use of these materials to achieve higher integration in sensing and
identi cation applications
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