Study of Early Age Properties and Behaviour of Concrete with GGBS as Partial Replacement of Cement

Ground granulated blast furnace slag (GGBS) is used as alternative binder material for cement in the concrete. The use of GGBS in concrete production contributes to the savings of natural resources and energy spent in cement manufacturing process and also to reduce CO2 emissions and environmental impact. In this research, GGBS is used as binder material for Ordinary Portland Cement in concrete by replacing cement up to 45% by weight of cementitious material. This investigation is carried out to study the fresh properties, early age strength properties and mechanical properties such as compressive strength of concrete specimen by partial replacement of cement with GGBS up to 45% and compared with referral mix. A total of four concrete mix proportion (NC, Mix 1-15%, Mix 2-30%, Mix 3- 5%) with and without GGBS were made. The compression test were carried out to determine the strength properties of concrete at the age of 3 days, 7days and 28 days. The test result shows that the 28days compressive strength at 15 % GGBS content for M35 and M40 grade of concrete is comparable with referral mix. It is observed that concrete made with GGBS have lower strength at early ages, but gain strength more steadily than equivalent concrete made with Portland cement which is having higher early age strength but does not rise rapidly on the later stages. The M40 grade concrete has better workability when compared with M35 grade concrete

Life cycle of KPIs in Cloud Networks

Key Performance Indicators are the benchmarks for measuring the health of a given network like Performance, Availability and Resiliency, etc. The Virtualization and Cloud computing transformed how the network operates and delivers services. This led to a new paradigm shift in how we measure the KPIs of Cloud Networks. The KPI management is a big challenge for cloud service providers. This paper describes KPI management for Cloud Networks through the Life cycle of KPI. The KPI Life cycle contains the systematic procedure for KPI Identification, Monitoring, Storage, Visualization and Analysis

ICT Competence and Attitude among Faculty members related Review of Literature from the period 2012-2021

The Information and Communication Technology (ICT) has become a common place in all areas of life. It is a necessary part of today\u27s world. It provides the opportunity to accelerate, enrich and expand your skills; motivates and engages learners in learning. In fact, culture and society must be adapted to the challenges of the age of knowledge. The spread of ICT has resulted in rapid technological, social, political and economic transformation, which has emerged in a network society organized around ICTs. The 21st Century is the age of ICT. Throughout the world, there is a tendency to use ICT in teaching learning processes. Educator and learner must gain access to technology to improve learning skills and academic development. The ICT in teaching learning process involves the use of computers, computer software and other devices for processing, transmitting and retrieving data and related services. In this paper it is emphasized on the previous studies conducted on ICT competence and Attitude of faculty members towards using ICT in teaching and learning activities in higher education institutions

Fabrication of Poly (Evans Blue) Modified Graphite Paste Electrode as an Electrochemical sensor for Sensitive and Instant Riboflavin Detection

Electro-analysis of Riboflavin (RN) consumed as vitamin has been delved by constructing the poly (Evans Blue) modified graphite paste electrode (PEBMGPE) as an electrochemical detector. Voltammetric determination of RN in 0.2 M PBS (pH 7.0) at the electro-active layer of the PEBMGPE was conducted. The PEBMGPE plays a crucial role as sensing tool towards the detection of RN compared to the BGPE. The topographical features of the bare graphite paste electrode (BGPE) and PEBMGPE was acquired by the FESEM surface analysis. All experimental factors such as applied potential, the effect of scan rate, impact of the pH were optimized. Employing the Differential pulse voltammetry (DPV) approaches using the good experimental circumstances the analytical curve was linear in the range of 6×10-6-1.5×10-4 M,  the detection limit and limit of quantification gained as 2.1×10-7 M and 7.1×10-7 M, respectively. Subsequently, good repeatability, excellent reproducibility, and adequate stability, high sensitivity were achieved for the PEBMGPE sensor. In addition, the PEBMGPE sensor was applied for the interference study of RN with Dopamine (DA) and Paracetamol (PR). Besides the practicability of the projected sensor was successfully utilized for the detection of the RN in the pharmaceutical formulation

Performance Evaluation of Spectral Clustering Algorithm using Various Clustering Validity Indices

In spite of the popularity of spectral clustering algorithm, the evaluation procedures are still in developmental stage. In this article, we have taken benchmarking IRIS dataset for performing comparative study of twelve indices for evaluating spectral clustering algorithm. The results of the spectral clustering technique were also compared with k-mean algorithm. The validity of the indices was also verified with accuracy and (Normalized Mutual Information) NMI score. Spectral clustering algorithm showed better results when compared to k-mean algorithm. All indices showed consistent results with spectral clustering technique. Silhouette Index, Hartigan Index, Davies-Bouldin (DB) index and Krzanowski-Lai (KL) index failed to evaluate k-mean clustering. Surprisingly, all eleven indices showed acceptable results for spectral clustering algorithm. This article confirms the superiority of spectral clustering algorithm and also confirms that all 12 indices are suitable for evaluating spectral clusterin

A Survey of Energy Harvesting Sources for IoT Device

Environmental Energy is an alternative energy for wireless devices. A Survey of Energy Harvesting Sources for IoT Device is proposed. This paper identifies the sources of energy harvesting, methods and power density of each technique. Many reassert have carried to extract energy from environment. The IoT and M2M are connected through internet or local area network and these devices come with batteries. The maintenance and charging of batteries becomes tedious due to thousands of device are connected. The concept of Energy harvesting gives the solution for powering IoT, M2M, Wireless nodes etc. The process of extracting energy from the surrounding environment is termed as energy harvesting and derived from windmill and water wheel, thermal, mechanical, solar

Enhanced voltammetric detection of paracetamol by using carbon nanotube modified electrode as an electrochemical sensor

New aspects associated with electro-catalytic activity of poly(methyl orange) modified carbon nanotube paste electrode (PMMCNTPE)towards the detection of paracetamol (PC) which is typically used worldwide as a pain reliever, were explored through implementation of cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques. Bare carbon nanotube paste electrode (BCNTPE) was modified by methyl orange using the electropolymerizing method. The effect of pH and influence of potential scan rate were resolved by means of CV technique. It was found that under optimized experimental conditions, PMMCNTPE imparts the analytical curve for PC in the concentration range of 2.0×10-6 – 5.0×10-5 M with detection limit of 3.8×10-8 M and limit of quantification of 1.2×10-8 M. The proposed sensor exhibited acceptable reproducibility, admirable stability, and adequate repeatability. The interference study of PC with dopamine (DA) and folic acid (FA) showed good selectivity of the designed sensor. The feasibility of the constructed electrochemical sensor to detect PC was successfully tested in some pharmaceutical formulations

Electrocatalytic Detection of Dopamine and Uric acid at poly (Basic Blue B) Modified Carbon Nanotube Paste Electrode

Electropolymerization of Basic Blue B by cyclic voltammetry (CV) onto the carbon nanotube (CNT) paste electrode results in the formation ofpoly (Basic Blue B) film/modified CNT paste electrode (PBBB/MCNTPE). The Modified electrode was used for the electrochemical determinationof dopamine (DA) and uric acid. CV results showed that this PBBB/MCNTPE have reversible redox behavior in electrolyte solution. The resultingPBBB/MCNTPE were characterized using field emission scanning electron microscope. The analytical ability was tested with respect to the scan rate,number of cycle, pH of solution, and concentration variation. Measurement of these analytes studied simultaneously by CV and differential pulsevoltammetry methods. The analytical curve for DA presented linear dependence over the concentration range from 3 × 10 M witha linear correlation coefficient of 0.99036. The detection limit of this method was 5.8 × 10. The method has good selectivity and sensitivity withsatisfactory results.Keywords: Carbon nanotubes paste electrode, Cyclic voltammetry, Poly (Basic Blue B), Dopamine, Uric acid

Internal Field Nuclear Magnetic Resonance: A Versatile Tool to Study the Structural and Magnetic Properties of Ferromagnetic Materials

59Co-Internal Field Nuclear Magnetic Resonance (IFNMR), 57Fe-IFNMR measurements are carried for the different materials like bulk cobalt, carbon coated cobalt (Co@C), bulk iron, carbon coated iron nanoparticles (Fe@C). The comparison of obtained results for bulk cobalt and Co@C shows that the bulk cobalt exists in the both the phases i.e., fcc and hcp phases, while the other exist only in the fcc phase. Further, the comparison of the NMR results of bulk iron and Fe@C confirms the presence of the single domain particles in the Fe@C samples. Thus, we propose IFNMR as a powerful tool to identify the structural and magnetic properties of ferro/ferrimagnetic materials

A Discourse on Gender Disparity: A Study on Taluks of Belagavi District

The modern period witnessed the increased gender disparity reflected in sex-ratio, literacy and education, employment and wage-rates and several other sociocultural and behavioral indicators of empowerment (Nangia, 2005). Gender equality is more than a goal in itself. It is a precondition for meeting the challenges of reducing poverty, promoting sustainable development and building good governance - Kofi Annan (Personal, Archive, Mahanta, & Nayak, 2013). The present paper examines the extent of gender disparity in Belagavi District based on literacy and sex ratio using secondary data. We found that literacy rate in study area was 76.93% in 2001 which is increased to 82.90% in 2011 and sex ratio in the study area was 960 in 2001 which is increased to 973 in 2011. There are wide disparities from rural to urban sex ratio as well as rural to urban literacy rate. The urban sex ratio is higher than rural sex ratio in study area. The rural sex ratio is 970 and urban sex ratio is 979 females per thousand males in the 2011. We found that in Belagavi district, there is reduction in gender disparities from 2001 to 2011 but the reduction rate is very slow