Volume 33, Issue 3

This project is a smart wheelchair based on eye tracking and ECG measuring system which is designed for people with locomotor disabilities. This eye controlled wheelchair[3] eliminates the assistance required for the disabled person. In this system, controlling of wheelchair is depend on eye movements and ECG measuring system measures the ECG of a patient[8] on wheelchair moving or pausing and transmit measured signals to a remote server through CDMA. The smart wheel chair consists of five modules including imaging processing module, wheelchair-controlled module, ECG measuring module, SMS manager module and appliance[1]controlled module. The image processing module consists of a webcam installed on the eyeglass and C++ customized image processing software. The captured image will be transmitted to raspberry Pi microcontroller which will be processed using OpenCV to derive the 2D direction of eye ball. The coordinate of eyeball movement is wirelessly transmitted to wheelchair-controlled module to control the movement of wheel chair. The wheelchair-controlled module has two dimensional rotating stages that is installed to the joystick of the electrical wheelchair to replace the manual control of the wheelchair. In order to acquire ECG, the system has an amplifier for each signal, and records the signals on a SD card through an A/D converter. The data which recorded in the SD card is transmitted to a remote server using a CDMA module. In conclusion, this project develops a system that is based on eye tracking and ECG measurements[8] from patients on wheelchair.

During the past decade, water needs have increased unpredictably in India. Increasing demand of water supply has become a major challenge for the world. Wasteful usage of water, climate changes and Urbanization has further depleted the resource. Conservation and management of the resource must be given utmost importance. In this paper, we present an IOT design for water monitoring and control approach which supports internet based data collection on real time bases. The system addresses new challenges in the water sector-flow rate measuring and the need for a study of the supply of water in order to curb the water wastage and encourage its conservation. We also measure the quality of water distributed to every household by deploying pH sensors. The traditional water metering systems require periodic human intervention for maintenance making it inconvenient and often less effective. For shortcoming of the existing model for a ubiquitous usage of wireless systems for smart quality monitoring and communicate data wirelessly.

The issue of road safety is of paramount importance and a concern when it comes to two-wheelers. Two wheelers are more prone to road accidents, especially due to blind spots. Waveguide optical display technology is an emerging technology that can potentially transform driver visual display systems by enabling the rider’s helmet visor itself to become a see-through head-up display, similar to something from a science fiction movie. The possibilities of such a display system is boundless. It will enable the rider to see and process multiple information seamlessly without affecting his concentration. This paper will describe diver visual display systems, waveguide optical display technology, development of the concept prototype, results of preliminary evaluations and recommendations for follow-on research and development.

Geopolymer is an aluminosilicate compound produced as a result of inorganic polymerization. In the present study the use of geopolymers as binder material in mortar where, fine aggregate was partially replaced with sub[1]surface rock powder obtained from depths of 200ft, 400ft and 600ft, was tested. The alkali activator used in the present study was 10M Sodium hydroxide (NaOH) solution. The experiments were conducted on fly ash and GGBS (1:1) based geopolymer mortar by varying the ratios of fine aggregate and sub-surface rock powder. The ratio of alkaline liquid (10M NaOH solution) to geopolymer was fixed as 0.1. The admixture Fosroc auramix V200, whose percentage was fixed as 1.2% determined by the marsh cone analysis test, was used for improving the workability of the mortar. The test specimens were ambient cured. The results showed the compressive strength was highest for the GPM 600 60 40 at 16.4 N/mm2 and lowest for GPM 200 0 100 at 6.31N/mm2 . The general pattern showed that there was an increase in the compressive strength from 7 days to 28 days of curing. During the 7 days testing GPM 200 showed higher compressive strength but after 28 days of curing GPM 600 had higher compressive strength.

A concise overview is projects for bidentate ligand (PCM) with different metal and on their applications in various chemical transformations. Since the nature of ligand can be changed in a variety of ways, appealing routes for designing and preparing novel metal complexes can be foreseen in the future. This review critically summarizes the applications PCM drug as ligand for formation complex and its importance also offers a review of recent work on synthesis, in situ characterization, and applications of metal complex with the general formula [M(L)2].nH2O.X2 where M is transition metal. compounds derived from Co, Zn, Fe, Cu and Ni.

This study wanted to find out the hidden dimensions behind the bridge failures across the globe resulting to deaths using fractal analysis, a different lens to analyze available data. Fractal statistical analysis revealed that there were four (4) top and four (4) bottom of the list of bridges (or 3 percent of the 117 bridges) that caused the highest and lowest number of deaths, respectively. Examining the common characteristics in terms of the bridges’ failures, the results implied that the bridges that were built in the past did not give the most durable bridge structures and they caused more casualties. Meanwhile, the bridges that were built recently gave the least number of casualties. This leads to the conclusion that the hidden dimension is innovative bridge construction engineering and technology to prevent structural failures in bridges.

The characteristics of a 4-S single cylinder water cooled constant speed naturally aspirated DI-CI engine with different blends of diesel-rice bran oil methyl ester combinations have been investigated. The investigation is focused on various performance characteristics like Brake specific fuel consumption, Brake thermal efficiency, Exhaust gas temperature, and combustion characteristics like heat release rate, pressure variation and emission characteristics like CO, NOX, HC. The fuel properties of rice bran oil methyl ester are found to be similar to those of diesel. A minor decrease in Brake thermal efficiency with significant improvement in reduction in exhaust gas temperature, CO, UHC is observed compared to diesel. The use of transesterfied rice bran oil methyl ester and its blends as fuel for diesel engine will reduce the dependence on fossil fuel and also decrease considerably the environmental pollution.

Aluminium alloy has gathered wide acceptance in the fabrication of light weight structures requiring a high strength to weight ratio. Compared to the fusion welding processes that are routinely used for joining aluminium alloys, Friction Stir Welding (FSW) process is an emerging solid state joining process in which the material that is being welded does not melt and recast. Friction Stir Welding is the most remarkable welding technology that has been invented and developed in last two decades. This process uses a non-consumable tool to generate frictional heat in the abutting surfaces. The welding parameters such as tool shoulder diameter, tool rotational speed, welding speed, axial force play a major role in deciding the joint strength. In presen study an attempt has been made to develop a mathematical model to predict tensile strength of the friction stir welded AA8011 aluminium alloy by incorporating FSW process parameters. Four factors, five levels central composite design has been used to minimize number of experimental conditions.

Flood is considered to be one of the most frequent disasters in the world. It occurs due to rainfall excess which causes huge run-off. During flood streets get filled with water and storm water sewer gets flooded and filled to their maximum capacity. This is due to laying of impervious bed everywhere. No fines concrete pavement had been used in many countries to overcome the problem of excess surface run-off. But the problem with no fines concrete is, it has less strength also it clogs more often. In this paper, a solution is suggested tonegotiate the problem by using perforated concrete as pavement material. This pavement can be made by providing through holes in concrete block with holes of different diameter and cavity percentage. A mix proportion for M40 grade concrete was designed and cubes were tested for 7, 14 and 28days. The compressive strength of perforated blocks was tested. The strength of perforated block was reduces a % cavity increases. However, the strength of block can serve the purpose for footpath, low volume traffic pavement and parking area.The perforated blocks will prove to be better substitute for no-fines concrete giving higher strength and lesser clogging problem than no-finesconcrete.