Light pollution is a type of that climaxes in cities and occurs increasingly away from them, due to the increase artificial lighting inappropriate design (selection luminaires, aiming, illuminance/luminance levels, spectral characteristics). Increasingly, light also affects countryside local but distant propagating urban areas. This has significant impact on ecosystems astronomical observing sites. work analyzes main facts about (causes, impact, solutions) studies methods, parameters,...

This work presents the concept and methodology as well architecture physical implementation of an integrated node for smart-city applications. The presented lies on active RFID technology whereas use case illustrated, with results from a small-scale verification node, refers to common-type waste-bins. sensing units deployed are ultrasonic sensors that provide ranging information which is translated fill-level estimations; however versatile tag within able afford multiple variety most...

<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> Distributed smart camera systems are becoming increasingly important in a wide range of applications. As they often deployed public space and/or our personal environment, access and manipulate sensitive or private information. Their architectures need to address security privacy issues appropriately, considering them from the inception overall system structure. In this paper, we present...

This work presents the architecture, modelling, simulation, and physical implementation of a versatile, scalable system for use in common-type waste-bins that can perform transmit accurate fill-level estimates while consuming minimal power consisting low-cost embedded components. The sensing units are based on ultrasonic sensors provide ranging information which is translated to estimations extensive simulations MATLAB experiments. At heart proposed lies RFID technology with active tags...

Dynacargo, a research project under implementation, aims to change supply chain management, as the hauled goods are at center of attention instead vehicles, in traditional management approaches. At same time Dynacargo manages both delivery and collection cycles. developing near real-time monitoring system that monitors transmits waste bins' fill level, which is used dynamically manage process by introducing distance minimization, relying on efficient routing algorithms. This paper deals with...

This paper presents a multifunctional circuit realizing the functions of oscillation, mixing, amplification, and frequency multiplication at 5 GHz. A theoretical experimental description is given. The proposed circuit, which combines both injection-locking mixing processes, uses only one port where RF/intermediate signal injection (IS) are applied. IS, used to stabilize subharmonic oscillation (omega <sub xmlns:mml="http://www.w3.org/1998/Math/MathML"...

In this paper we point out the necessity for monitoring status of a Delay-Tolerant Network (DTN) and present network functionalities implemented in small comprising three nodes based on DTN2 implementation DTN Bundle protocol. The methods used to gather appropriate statistics are described key parameters needed describe analyzed assessed regarding their efficiency monitor networks performance.

Abstract The exterior lighting in hotel buildings has a significant impact on humans and the ambient environment of city centres. case study is small-sized Boutique hotel, located at historic centre Athens, as far its façade concerned, relation to standards that general area architecture set. A special methodology followed order estimate consequences taking into account relevant norms. international databases bibliography were studied also identify best practices, regulations similar cases...

Dynacargo is an ongoing research project that introduces a breakthrough approach for cargo management systems, as it places the hauled cargos in center of haulage information system, instead vehicle. attempts to manage both distribution and collection processes, providing integrated approach. This paper presents architectural modules interrelations between them, well issues development progress some selected modules. In context project, set durable, low cost RFID tags are placed on waste...

Abstract The use of municipal football fields by a large number citizens and amateur athletes on daily basis during evenings is popular activity. Usually, the aiming pitch lighting, without taking into account dense urban environment in surroundings, causes light pollution. Obtrusive lighting most cases rule not exception. This situation could be justified professional leagues so as to address needs television broadcasts matches for two days per month field. However, activities due lack...

The scope of this work is to analyse the methodology used for official designation first International Dark-Sky Park in Greece which was Aenos National Park, designated May 2023. based on requirements Association with many differentiations due specific technical challenges and administrative circumstances Greece. process included both works, light measurements, lighting retrofit as well administrative, social publicity activities. From beginning completion, lasted more than three years...

Abstract Subharmonic injection‐locking and self‐oscillating mixing functions of a modified Colpitts oscillator operating at 1 GHz are reported. The circuit, using GaAs FET, is described theoretically experimentally. Phase noise, power consumption conversion gain measurements indicate that the proposed design attractive for low‐cost, low‐power front‐ends. Copyright © 2008 John Wiley &amp; Sons, Ltd.

In this work, communication security and privacy in pervasive user-centric e-health systems is studied. Our proposed scheme presented which uses a combination of mechanisms from Digital Rights Management side channel attacks defense order to ensure for patients' data. particular, between medical, limited-resource, embedded devices, carried by the patients, devices central health installations both encrypted means elliptic curve cryptography protected against traffic analysis. addition, DRM...

This work presents a composite scheme for detection, traceback and filtering of distributed denial service (DDoS) attacks in networked embedded systems. A method based on algorithmic analysis various node network parameters is used to detect while packet marking mitigate the effects attack by incoming traffic that part this trace back origin attack. The combination detection mitigation methods provide an increased level security comparison approaches single method. Furthermore, developed way...

A smart camera surveillance system operating over a DTN network is presented. Low power embedded systems with connected cameras are used to detect and record events using motion other triggers. Smart nodes can cooperate by means of wireless personal area network. Images chosen saved locally transmitted via base station node secure Delay Tolerant Network based on the Bundle protocol implemented monitoring mechanisms. This architecture appropriate for remote areas where connectivity...

A subharmonic injection-locked self-oscillating mixer (s-ILSOM) at 1 GHz is reported in this paper. The proposed circuit which combines both injection-locking and mixing functions described theoretically experimentally. In contrast to previously works, only one input port required for the RF/IF signal injection signal. Furthermore, used stabilize oscillation a of frequency (f <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">LO</sub> /4), with...

Abstract This work describes the preparatory steps for planning of a light pollution protected area in form an International Dark-Sky Park Aenos National at island Kefalonia that refer to lighting and pollution. In more detail, we identified measured luminance, illuminance spectrum public areas are adjacent may influence its operation as Dark Sky Park. procedure also includes identifying luminaire types sources, judging their suitability, malpractices proposing changes. general, many were...

In this paper, we identify the security and privacy issues specific to wireless health monitoring devices describe solutions for protecting communications against side channel attacks in particular traffic analysis attacks. This process takes place by means of data obfuscation modifications communication protocol architectures order limit exposed information system architecture potential attackers. Initial network simulations proposed methods show feasibility these methods.

This work focuses on proposing the basic components of a resilience scheme that can be used for protection Health Services Critical Infrastructure (HSCI) and its key assets based combined against cyber physical attacks.