A sensor network is an infrastructure comprised of sensing (measuring), computing, and communication elements that gives an administrator the ability to instrument, observe, and react to events and phenomena in a specified environment. Patients who have survived cardiac attack or other physiological problems are at a higher risk of sudden cardiac death. Many of these patients are living at home without any kind of cardiac monitoring systems. \nBy using a wearable monitoring system for detection of ECG systole, Diastole, Flux, Body temperature, Weight, Accelerometer, Latitude and Longitudinal location, it is possible to alert healthcare professional to the patient’s condition so that the necessary action for an emergency rescue can occur. A special purpose sensor network here, designed to operate autonomously to connect varies medical sensors placed on the human body. In this system, we effectively monitors the patients physiological status such as ECG, Body temperature, systole, diastole, Heartbeat, flex, Accelerometer and successfully processed in the transmitter kit, which is attached in the patients body. Effectively transmits the data from the transmitter kit through a GPRS to the receiver which is located in the hospital server. Hence the patients need not to be in observatory room or under any supervision of health care professionals, and the mobility will be greatly achieved in our work. .In addition to that we are tracking the patient’s location through GPS continuously, by obtaining the Latitude and longitudinal position can easily make emergency rescue operation. . Introduction of effective medical monitoring & other applications continuosly will offer flexibilities and cost saving options to both health care professionals and patients. Here, we produce an efficient, reliable, and secure platform that can meet increasing needs in e-healthcare applications. These applications require to support multiple data rates with reliable and energy efficient data transmission which can be achieved by our earlier developed Efficient and Secure Routing protocols (ESRP).

Eccentrically braced frames (EBFs) are known as both ductile and stiff systems with a large dissipative capacity. The use of EBFs as a primary system in dual systems is a possible way for improving the seismic response of separate EBFs or MFs. This paper discusses nonlinear behavior of two sample cases of 20 and 15-story EBF dual systems. For each case six structural configurations with different relative stiffness of MFs and EBFs, were designed and examined with nonlinear static and nonlinear dynamic procedures. Results indicate that the best combination occurs when almost 45% of lateral load is absorbed by MFs. The results show that dual systems have better seismic behavior than MFs or EBFs, separately. Also the period of EBF dual system and the effect of structure’s height on the period are discussed. To improve undesirable interaction between EBFs and MFs at top stories in the best structural configuration some methods were examined. Results show that any method that can decrease stiffness of EBFs at top stories will improve the undesired interaction.

Evaluation of IEEE 802.11 Mobile Ad Hoc Networks (MANET) security issues becomes significant concern for researchers since Denial of Service (DoS) attacks are recognized as one of the most harmful threats. Variety of security mechanisms are proposed to solve security dilemma in MANETs against different layers of DoS attacks. Physical Layer jamming attacks exhausts the victim’s network resources such as bandwidth, computing power, battery, etc. Unified Security Mechanism (USM) and Rate Adaptation Scheme (RAS) are two of the proposed methods by researchers against DoS attacks. In this research paper RAS and USM has compared in terms of performance metrics under physical layer jamming attacks through simulation experiment.

Photocatalytic degradation process is a low-cost alternative by the use of synthesized nanoparticles. It became a clean process for the degradation due to hydroxyl radicals generated on semiconductor surface. Such radicals are able to degrade several organic compounds. In this study, Violet GL2B azo dye was selected for the degradation studies under visible light irradiation. The two different nanoparticles, CaZnO2-I was synthesized by using fuel urea and CaZnO2-II by acetamide by solution combustion method. These nanoparticles were characterized by using X-ray diffraction (XRD) and Scanning Electron Micrograph (SEM) analysis. The average size was found to be 39.15 nm for CaZnO2-I and 43.59 nm for CaZnO2-II. The band gap of the nanoparticle CaZnO2-I was found to be 2.57 eV and CaZnO2-II was 2.67 eV. These nanoparticles were tested for the photocatalytic degradation by varying parameters such as catalyst concentration, pH and dye concentration and compared with the procured TiO2 of size <25 nm. The results showed that CaZnO2-I is highly efficient in degrading the azo dye Violet GL2B (97.69%) when compared with the CaZnO2-II of degradation of 94.69% against TiO2 of 7.91% at pH 7.

A novel ZnO nanostrctures has been synthesized by a sol-gel method based on network of NH3•H2O. The obtained results showed the synthesized nanostrctures at best conditions has excellent linear nanorod created from nanograins. Each nanograin was made of nanoparticles ZnO. Temperature sensors are a type of resistor whose resistance varies significantly with temperature. Different ZnO Nanostructures such as nanorods, nanoparticles and nanobelts have been grown and used for preparation temperatures sensors. Because of more surface contact of ZnO nanorods, more gas molecules are adsorbed on the ZnO nanorods surface. Sensitivity of different type of sensors has been investigated by energetic O2 gas with studying of ZnO Nanostructures morphology. ZnO Nanostructures were synthesized by zinc nitrate, ammonia as the starting materials at a low temperature. The effects of the concentration of ammonia, the influence of pH value, temperature and time on the morphologies of ZnO have been investigated. The ZnO with ph 10.5 has a homogeneous and dense surface with grain size about 30 nm. \nThe obtained results indicate that something like ad-atoms and rest-atoms of ZnO, change the morphology and sample surfaces. Characterizations were carried out by X-Ray Diffraction (XRD), Atomic Force Microscopy (AFM), Transmission Electron Microscopy (TEM) and Scanning Electron Microscopy (SEM) techniques.

A novel ZnO nanostrctures has been synthesized by a sol-gel method based on network of NH3•H2O. The obtained results showed that the synthesized nanostrctures at optimum conditions has excellent linear nanorod created from nanograins. Each nanograin was made of nanoparticles ZnO. Temperature sensors are a type of resistor whose resistance varies significantly with temperature. Different ZnO nanocrystallites such as nanorods, nanoparticles and nanobelts have been grown and used for preparation temperatures sensors. Due to more surface contact of ZnO nanorods, more gas molecules are adsorbed on the ZnO nanorods surface. Sensitivity of different type of sensors has been investigated by energetic O2 gas with studying of ZnO nanocrystallites morphology. ZnO nanocrystallites were synthesized by zinc nitrate, ammonia as the starting materials at a low temperature. The effects of the concentration of ammonia, the influence of pH value, temperature and time on the morphologies of ZnO have been investigated. The obtained results indicate that something like ad-atoms and rest-atoms of ZnO, change the morphology and sample surfaces. Characterizations were carried out by X-Ray Diffraction (XRD), Atomic Force Microscopy (AFM), Transmission Electron Microscopy (TEM) and Scanning Electron Microscopy (SEM) techniques.