196,138 research outputs found
The Evolving Role of the Board: Board Nomination and the Management of Dissenting Opinions
No full textMetrological characterization of a novel microsensor platform for activated carbon filters monitoring
No full textNowadays, an increasing concern about people and environmental health and safety is spreading all over the world, and technologies such as efficient monitoring systems are furthered. In the field of air quality, filtering systems, especially based on activated carbons (ACs), are commonly used. In most cases, their state of health is not monitored, and their time of life is based on statistical and a priori evaluations. This paper proposes a novel microsensor platform for the real-time monitoring of AC filters based on the impedance measurements during gas exposition. A metrological characterization of the novel proposed instrument is provided in this paper, by comparing its output to a reference RLC meter. A calibration and adjustment procedure is developed in order to analyze the device measurement capabilities and obtain correction coefficients. Experiments with different gas typologies are presented, and the analysis of filters impedance dynamics is provided
To pupate or not to pupate: A case study of an obligate pollination mutualism in Glochidion ferdinandi (Phyllanthaceae) and Epicephala colymbetella (Gracillariidae)
No full textObligate pollination mutualisms have recently been recorded in the Glochidion genus with Epicephala moth associates (leaf-flower and leaf-flower moths). There is limited literature on Australian Glochidion species and their pollinators. Glochidion ferdinandi occurs predominantly across the east coast of Queensland, Australia and has an obligate pollination association with Epicephala colymbetella. Early descriptions of G. ferdinandi describe the encapsulation of the adult moth within the fruit. In the present study, observations and fruit dissections were recorded to analyse the role of symbionts within this mutualism, pollinator life history and the flowering phenology of the host. Our study confirmed this rare behaviour in which E. colymbetella pupated within G. ferdinandi fruit in which adult moths were retained until fruit dehiscence. Fruit dissections identified two other species alongside E. colymbetella, a seed consuming Spilomelinae moth and parasitoid Bracon wasp. Although both moth species were found to reduce the number of surviving ovules in the fruit, E. colymbetella also provided a pollination benefit to G. ferdinandi. Furthermore, the life histories of E. colymbetella and phenology of G. ferdinandi were observed to be highly synchronous, with larvae developing concurrently with ovules after flower fertilisation. Retention of the adult moth in fruit has only previously been recorded in one other Epicephala (lanceolaria).No Full Tex
An End to End Indoor Air Monitoring System Based on Machine Learning and SENSIPLUS Platform
No full textIn the framework of indoor air monitoring, this paper proposes an Internet of Things ready solution to detect and classify contaminants. It is based on a compact and low-power integrated system including both sensing and processing capabilities. The sensing is composed of a sensor array on which electrical impedance measurements are performed through a microchip, named SENSIPLUS, while the processing phase is mainly based on Machine Learning techniques, embedded in a low power and low resources micro controller unit, for classification purposes. An extensive experimental campaign on different contaminants has been carried out and raw sensor data have been processed through a lightweight Multi Layer Perceptron for embedded implementation. More complex and computationally costly Deep Learning techniques, as Convolutional Neural Network and Long Short Term Memory, have been adopted as a reference for the validation of Multi Layer Perceptron performance. Results prove good classification capabilities, obtaining an accuracy greater than 75% in average. The obtained results, jointly with the reduced computational costs of the solution, highlight that this proposal is a proof of concept for a pervasive IoT air monitoring system
Culture as a Critical Enabler for Tourism Destination Development
No full textThe relationship between cultural heritage and tourism has stimulated the theoretical debate for many years. While it is evident that cultural attractions have the potential to be critical assets for tourism policymakers and destinations, tourist behaviors are often seen as potential harm to both the preserva- tion of cultural heritage and the development of a profound cultural experience. Nevertheless, a grow- ing number of experiences show that a sound management of cultural tourism can generate substantial social, economic, and even environmental benefits. This chapter aims to investigate the trajectories and strategies tourism destinations can adopt to leverage their (material and immaterial) cultural assets, improve their brand, and eventually, enhance their competitive position in the tourism markets, with particular reference to the case of Parma Italian Capital of Culture 2020
SENSIPLUS: AN INNOVATIVE PLATFORM FOR HEALTH AND SAFETY APPLICATIONS IN SMART CITIES
No full textSmart City is a modern concept, born in the last decade and spreading very quickly all over the world, aiming at improving the citizens’ life quality by largely adopting Information and Communication Technologies (ICT). It is addressed to optimize the government policy and people welfare by means of the analysis of data acquired with pervasive sensors’ networks distributed in indoor and outdoor environments. The Internet of Things (IoT), a new paradigm according to which the everyday life objects are connected to the internet, has a key role in the smart cities development. Such technologies and paradigms are adopted in many applications, as for the air quality monitoring and warranty. The World Health Organization (WHO) states that the Chronic Obstructive Pulmonary Disease (COPD) caused about 3.2 million deaths in 2015 and will be the third one in 2030. For this reason, lots of efforts are devoted to air monitoring and to the development of technologies to reduce the polluting. In this field, the authors are working at the development of an innovative platform, called SENSIPLUSR ,
characterized by sensing, processing and communication capabilities
Casparis Vrsini Velii Oratio Habita in Alba Regali, die felicissimæ Coronationis ... Ferdinandi Vngariæ Boemiæ q[ue] Regis &c. Anno M. D. XXVII. III. Non. Nouembris
No full textCASPARIS VRSINI VELII ORATIO HABITA IN ALBA REGALI, DIE FELICISSIMÆ CORONATIONIS ... FERDINANDI VNGARIÆ BOEMIÆ Q[UE] REGIS &C. ANNO M. D. XXVII. III. NON. NOUEMBRIS
Casparis Vrsini Velii Oratio Habita in Alba Regali, die felicissimæ Coronationis ... Ferdinandi Vngariæ Boemiæ q[ue] Regis &c. Anno M. D. XXVII. III. Non. Nouembris (1)
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Relation Des Gottseeligisten Ableibens Weylandt der Röm: Kays: May: Ferdinandi des Andern/ [et]c. Christmildseeligsten Angedenckens/ So beschehen zu Wienn/ den 15. Februarij/ im Jahr M. DC. XXXVII.
No full textRELATION DES GOTTSEELIGISTEN ABLEIBENS WEYLANDT DER RÖM: KAYS: MAY: FERDINANDI DES ANDERN/ [ET]C. CHRISTMILDSEELIGSTEN ANGEDENCKENS/ SO BESCHEHEN ZU WIENN/ DEN 15. FEBRUARIJ/ IM JAHR M. DC. XXXVII.
Relation Des Gottseeligisten Ableibens Weylandt der Röm: Kays: May: Ferdinandi des Andern/ [et]c. Christmildseeligsten Angedenckens/ So beschehen zu Wienn/ den 15. Februarij/ im Jahr M. DC. XXXVII. ([1]r)
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Sensiplus: an innovative solution for health and safety applications
No full textNowadays, health and safety are some of the most central topics all over the world in order to improve
people life quality and well–being. In this field, an innovative integrated system based on a two layer
architecture is presented: the Hardware Layer is the SENSIPLUS chip, a smart sensor IoT ready node
endowed with on board sensors and implementing the Electrical Impedance Spectroscopy; the Software
Layer deals with measurement acquisition and analysis. The sensing and measuring capabilities of the
chip are an enormous potential for the whole platform, with the possibility to be adopted in many different
applications. In particular, the SENSIPLUS chip has been involved in three specific applications, all
addressed to the warranty of people health and safety: a) Contaminants detection and recognition in air;
b) Contaminants detection and recognition in water. The SENSIPLUS chip, developed by the Italian
company Sensichips s.r.l. [1] in collaboration with the research group headed by the professor Paolo
Bruschi of the University of Pisa, is marked by a very low power consumption (1.5 mW), includes a
complete universal sensor interface into a tiny silicon CMOS integrated circuit of only 3mm x 3mm in
size. It is endowed with a versatile analog front end, electrical impedance spectroscopy measuring technique
and different serial digital interfaces (as SPI and I2C). Furthermore, it is endowed with on-chip
sensors as temperature, humidity and gas sensors
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