نتایج جستجو برای: sensors

تعداد نتایج: 93863  

Routing is an important challenge in WSN due to the presence of hundreds or thousands of sensor nodes. Low Energy Adaptive Clustering Hierarchy (LEACH) is a hierarchical routing and data dissemination protocol. LEACH divides a network domain into several sub-domains that are called clusters. Non-uniformity of cluster distribution and CHs selection without considering the positions of other sens...

سیدمحسن حسینی گلگو, , شهرام سیدین, , فریما آگند, , محمد حسین قزل‌ایاغ, ,

In this paper, manufacturing and evaluation of ethanol gas sensors based on thin films of nanostructure tin oxide have been investigated. SnO2 thin films were prepared by both thermal evaporation (type I) and sputtering (type II) methods and heat treated on silicon wafer substrates. Scanning electron microscope (SEM), atomic force microscope (AFM), X-ray diffraction (XRD) and energy dispersive ...

H. R. Vosoughifar, M. Mohammadgholiha, M. R. Hamedi, N. Hamedi,

In recent years, lightweight steel framed (LSF) structures are designed to resist fire, earthquakes, and storm events. This system has entered the field of construction due to advantages of light members. Based on these advantages, such a system is also used for buildings with special importance. Structural health monitoring (SHM) implements a damage detection and characterization strategy for ...

Subject- Potholes on roads are regarded as serious problems in the transportation domain and ignoring them leads to the increase of accidents, traffic, vehicle fuel consumption and waste of time and energy. As a result, pothole detection has attracted researchers’ attention and different methods have been presented for it up to now. Background- The major part of previous research is based on i...

Journal: :energy equipment and systems 0
mostafa rahnavard school of mechanical engineering, university of tehran, tehran, iran mohammad reza hairi yazdi school of mechanical engineering, university of tehran, tehran, iran moosa ayati school of mechanical engineering, university of tehran, tehran, iran

this paper addresses the design of an observer-based fault diagnosis scheme, which is applied to some of the sensors and actuators of a wind turbine benchmark model. the methodology is based on a modified sliding mode observer (smo) that allows accurate reconstruction of multiple sensor or actuator faults occurring simultaneously. the faults are reconstructed using the equivalent output error i...

Journal: :iranian journal of pharmaceutical sciences 0
hossein hamzeiy bpharmacology and toxicology department, faculty of pharmacy, tabriz university of medical sciences, tabriz, iran mehdi saberian aresearch center for pharmaceutical nanotechnology, bpharmacology and toxicology department, faculty of pharmacy, tabriz university of medical sciences, tabriz, iran davoud asgaria research center for pharmaceutical nanotechnology, yadollah omidi research center for pharmaceutical nanotechnology,

electrochemical aptamer-based sensors attract a lot of interest as useful methods because of their low cost, accuracy, sensitivity, and simplicity. an electro-active redox molecule comprises the main part of the electrochemical-based sensors. ferrocene is one of the most popular redox molecule used in biosensor fabrication. but, instability of ferrocenium ion in strong nucleophilic reagents and...

Pharmaceutical drugs play an important role in human life since they caused a revolution in human health. Notably, their administration to a living organism helps body to stay healthy. Commonly, they are employed to diagnose, prevent, or treat and cure a disease via a biological effect on a human body. Administration of impurity-free and adequate amounts of pharmaceut...

Journal: :Journal of the Illuminating Engineering Institute of Japan 1994

Journal: :Cellular Signalling 2013

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