Archives-March 2016

Now-a-days traffic congestion has become the biggest problem in the developing cities. This could become even worse in future, if the conventional method of traffic system is followed. So, our project focuses on a smart traffic control system. The proposed system is more efficient than the conventional system in respect of less waiting time, preventing accidents due to over speed and efficient operation during emergency mode. The proposed system makes use of sensor network and microcontroller Arduino UNO. The Arduino Uno is a microcontroller board based on the ATmega328. Portable Inductive Proximity sensors are used. There is no need to embed these sensors in the road. Instead these devices can be placed next to the roadway and measure traffic in the immediately adjacent lane. Using this sensor system, traffic signal are opened and closed depending upon the vehicle density in each lane. Vehicle counting, classification into heavy and light vehicles and detection of over speed vehicles can all be performed using this sensor system. A LCD display is used to display vehicle count. After over speed detection, an alert message can be sent to the nearby police station using GSM SIM900.All the emergency vehicles are equipped with RFID tag. We use RFID reader, NSK EDK-125–TTL and Arduino Uno to read the RFID tags attached to the emergency vehicle. So this enables the emergency vehicle to reach hospital on time without delay. A voice output is provided in the traffic signal which keeps intimating about the last few seconds left for the traffic light to turn green. This will help the impaired people in road crossing.

Periodontal regenerative therapy aims to predictably restore the tooth’s supporting periodontal tissues and should result in formation of a new connective tissue attachment (i.e. new cementum with inserting periodontal ligament fibres) and new alveolar bone. Numerous clinical trials have shown positive outcomes for various reconstructive surgical protocols. Reduced probing depths, clinical attachment gain, and radiographic bone fill have been reported extensively for intrabony and furcation defects following scaling and root planing, open flap debridement, autogenous bone grafting, implantation of biomaterials including bone derivatives and bone substitutes, guided-tissue regeneration (GTR) procedures, and implantation of biologic factors, including enamel matrix proteins. The present article aims at providing an overview on basic principles of periodontal regeneration, various materials being used and recent techniques in periodontal regeneration and factors influencing the outcome.

It is well known fact that concrete displays a brittle behaviour and very little tensile capacity. This type of brittleness can be reduced by incorporation of fibers in concrete which lead to better strength properties and impact resistance. This paper presents on the study of compressive strength properties of concrete cube specimens with and without addition of discrete steel fiber of two different propositions. It is imperative to note that the 28 days mean compressive strength have been used to characterize the three types of concrete, i.e., plain control concrete, fully fiber reinforced concrete and retrofitted concrete, based on the experimental results obtained through direct compression test of cube specimens. Concretes containing steel fibers reinforced at the same volume fraction (1%) were compared in terms of compressive strength properties for three different sizes of cube specimens, namely150x150x150mm, 100x100x100mm, 70.6x70.6x70.6mm. In addition, comparative analysis on the experimental results of compressive strength for all the three types of concrete has been made. It is observed that steel fiber enhanced the strength properties and impact resistance of concrete as compared to the plain concrete results. It is also found comparable results between fully fiber reinforced concrete and retrofitted concrete. It is further observed that the strength is increasing consistently to the decreasing sizes of specimens.

A computational study on performance and emission characteristics of single cylinder, four stroke SI engine operating on ethanol-gasoline blends was carried out on AVL BOOST at different compression ratios. In this paper Vibe two zone model was selected for the study of combustion analysis and simulation were carried out for different blends of ethanol and gasoline i.e. from 0% to 30% of ethanol by volume with the increment of 10. The computational results show that gasoline fuel produces more power and torque than E10, E20 and E30. Whereas there is a considerable decrease in the emission of HC and CO but NOX increases with increase in ethanol content.

In view of the place of biological parameters in defining soil health, many scientists of repute have developed methods of assessing environmental parameters one of which is soil health. Soil health is assessed from several angles: biological, chemical, physical, bearing in mind that the top and sub soils are the zones of plant growth and active flora and fauna activities. Biological parameters of the soil cannot do without reference to enzyme, humic acid and microbial activities. A lot of methods have been developed for their assessment and a lot of scientists have adopted and modified the methods with varying results. Each of them have additional benefits. There may be limitations but that is the basis of science. A big thank you to all the scientists living and dead who have shaped the scientific community and the world from their research and findings. All of them have been recognized globally directly as nobel laureates and indirectly through other honours by peer groups. This paper presents enzyme and microbial activities methods of assessment and their pros and cons.

Testing the presence of sugar in urine will serve as an additional diagnostic tool to verify and correlate with the glucose level in plasma. The earliest test was done by using benedict’s reagent and the reports were given ranging from nil to several positives depending upon colour changes. Dry Chemistry is now emerging as the latest technology for detecting sugar in urine, both qualitative and quantitative and some companies have developed instruments to read the intensity of colour obtained using reflectance principle and to report the urine sugar results quantitatively. Several commercial brand of test strips are available for urine sugar testing and many studies have been done in evaluating their merits and demeirts. This research paper is an attempt to find out the correlation between plasma and urine glucose both estimated quantitatively. Good correlation was found between plasma and urine glucose (P<0.00001). While dialab reagents and DIRUI CS 1300B analyser were used to measure plasma glucose, DIRURI H 100 reflectance analyser and multistix marketed by the same company was used to measure urine glucose. This research work suggests that every lab using quantitative urine glucose measurement based on dry chemistry test strips should evaluate its performance.

A novel method for analytical detection of H2O2 based on ruthenium nanoparticles (RuNPs) functionalized chemically reduced graphene (CRGR) nanocomposite is developed. The RuNPs/CRGR nanocomposite was characterized employing different techniques, such as transmitted electron microscope (TEM), cyclic voltammetry (CV) and chronoamperometry (CA). The RuNPs/CRGR nanocomposite sensor exhibits higher catalytic effect to H2O2 by greatly enhancing the reduction peak current and completely eliminating the interference of other species as compared with a bare electrode. A fast amperometric response was observed by the RuNPs/CRGR electrode with a linear range from 10 to 170 µM and lower detection limit of 0.16±0.01 µM as compared to some other reports. The high reproducibility, specificity as well as long time stability obtained with the proposed sensor indicated that the present method is an effective for H2O2 determination.

This study explored implications of self-publishing activities to the process of acquisition in Nigerian university libraries. Survey method was employed using questionnaire as an instrument for data collection. A random sampling technique was adopted; seven respondents (Collection Development Librarians) were drawn from each of the six geo-political zones of the federation. The collected data was analyzed with the use of descriptive statistics which involved tables and simple percentages. The study showed that absence of multi-dimensional approach to marketing and promotion, poor editorial and operational errors and informal payment process accounted for low patronage of self-published materials by Nigerian university libraries. Therefore, there is need for further training in self-publishing for Author-Publishers, while CDLs should create the needed synergy by engaging the faculty and forming a consortium for acquisition of self-published books

The aim of this article is to show the meaning of the chosen aspects of management, which is based on creativity synergy and innovation, understood as a process of communication determining vocational education. Stressing the substantial factors, from the point of view of organization development, it indicates the need of interdisciplinary treatment of this process, with a particular emphasis on the meaning of methods and ways of communicating.

The human body has the privilege of possessing features that are unique and exclusive to each individual. This exclusivity and unique characteristic has led to the field of biometrics and its application in ensuring security in various fields. Today, the technology has emerged as a reliable and effective method for establishing the identity of a person and controlling access to both physical and spaces, more importantly in the wake of heightened concern about security and rapid advancements in communication and mobility in our environments. Meanwhile, experimental studies have shown that a biometric system that uses a single biometric trait for recognition has this propensity to contend with challenges related to non-universality of trait, spoof attacks, large intra-class variability, and noisy data. Besides, no single biometric trait can meet all the requirements of every possible application. Therefore, it is believed that some of the limitations imposed by unimodal biometric systems can be overcome and much higher accuracy achieved by integrating the evidence of multiple biometric traits for establishing identity. However, the time and computational complexity of combining the evidences from different traits during application processes remains an overt concept that attracts research attention. In this research work, a multilevel decision threshold authentication mechanism is presented for efficient multimodal biometric system. This kind of level-based strategy allows data fusion at three different levels to gradually improve the performance of any biometric authentication system.