Wireless sensors attract increased attention from both academia and industry owing to emerging applications such as Internet of Things (IoT), smart homes, e-health, etc. It is widely accepted that security assessment to this super large distributed ubiquitous devices and privacy of collected data are ultimate important, Sensor security that relies on traditional cryptography is vulnerable to va...

Abstract BMP280 sensor is widely used to measure air pressure. Accuracy and precision are parameters indicate the performance of a sensor. This study examined by measuring pressure on 15 sensors compared with BMKG devices as reference standard. measurement was conducted in class III Tanjungpinang from 20-22 May 2022. Sensor analysis performed using statistical one-way ANOVA method, Tukey test, ...

aminocarboxylic acids, such as 2-aminobenzoic acid, react easily with [ir(cod)(pme3)3]cl, (cod=1,5-cyclooctadiene), in thf to produce hydridoaminocarboxylato iridium(iii) complexes in high yields. these octahedral complexes are formed via oxidative addition reaction of the o-h bond of the carboxylic group with the central metal. the starting iridium(i) complex losses the cod molecule, the chlor...

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Wireless sensor networks are often located in areas where access to them is difficult or dangerous. Today, in wireless sensor networks, cluster-based routing protocols by dividing sensor nodes into distinct clusters and selecting local head-clusters to combine and send information of each cluster to the base station and balanced energy consumption by network nodes, get the best performance ...

This paper is focused on a novel design of stepped diaphragm for MEMS capacitive pressure sensor used in tire pressure monitoring system. The structure of sensor diaphragm plays a key role for determining the sensitivity of the sensor and the non-linearity of the output.First the structures of two capacitive pressure sensors with clamped square flatdiaphragms, with different thicknesses are inv...

Wireless sensor networks (WSNs) have many applications in the areas of commercial, military and environmental requirements. Regarding the deployment of low cost sensor nodes with restricted energy resources, these networks face a lot of security challenges. A basic approach for preparing a secure wireless communication in WSNs, is to propose an efficient cryptographic key management protocol be...

This paper presents a deployment strategy via self organizing flocking coalitions for mobile sensor network coverage. The concepts of our approach are inspired by the flocking phenomenon which locally controls a group of mobile agents performed as follows: (i) global alignment of their velocity vectors, (ii) convergence of their velocities to a common one, and (iii) collision avoidance. Adding ...

(iii) f is a bijection. A wireless sensor network (WSN) is composed of a large number of densely deployed sensing devices, which are equipped with limited computing and radio communication capabilities. The objective of a WSN is to reliably estimate the features of a surveillance area, especially the events of interest, relying on the collective effort of sensor nodes observing the physical phe...

The orchestration of cloud computing with wireless sensor network (WSN), termed as sensor-cloud, has recently gained remarkable attention from both academia and industry. It enhances the processing storage capabilities resources-constrained networks in various applications such healthcare, habitat monitoring, battlefield surveillance, disaster management, etc. diverse nature limitations on netw...