292 research outputs found
Physico-Chemical Analysis of Effluents from Dairy Industry
The treated and untreated effluents samples from dairy industry were collected and brought in to laboratory for studying physicochemical parameters like pH, temp, color, DO, BOD, COD, TDS, TSS, TS, Chloride Sulphate, Oil & grease were analyzed
Implementation of Electric Spring in Future Smart Grid for Reduction of Energy Storage Requirements
The electric spring is modern technology certified to be effective in stabilizing smart grid with substantial participation of intermittent renewable energy sources and enabling load demand to follow power generation. The unclear change from output voltage control of a reactive power controller presents the electric spring new aspects convenient for future smart grid applications. In this project, the effects of such unclear control change are highlighted, and the advantage of the electric springs in reducing energy storage requirements in power grid is theoretically shown and practically shown. In an experimental set up of a 90 kVA power grid. Traditional statcom and static var compensation technologies used for only reactive power compensation as well as random power variation in non-critical loads. These are such profitable features of electric spring enables non-critical loads with embedded electric springs to be adaptive to future power grid. Accordingly, the load demand can follow energy precaution, power generation and hence energy storage requirements can be reduced
Dielectric characterization and molecular interaction behaviour in binary mixtures of methyl acetate with 1-butanol and 1-pentanol
900-910The dielectric constant (ɛs) and relaxation time () of binary mixtures of methyl acetate with alcohols (1-butanol and 1-pentanol) have been investigated at fifteen molar concentrations over the entire mixing range at 288 K, 298 K, 308 K and 318 K using time domain reflectometery technique over the frequency range from 10 MHz to 10 GHz. The relaxation in these mixtures can be described by a single relaxation time using the Debye model. The concentration dependent plots of excess dielectric constant (ɛE), excess inverse relaxation time (1/)E, Kirkwood correlation factor (geff), thermodynamic parameters such as enthalpy of activation (H) and Gibbs free energy (G) of activation and Bruggman factor (fB) have been used to explore the complexes formed between unlike molecules, dipolar ordering, hydrogen bond molecular connectivity’s and their strength in the binary mixtures. Results confirm that there are strong hydrogen-bond interactions between unlike molecules of ester-alcohol mixtures
Comparison of Classification Algorithm for Crop Decision based on Environmental Factors using Machine Learning
Crop decision is a very complex process. In Agriculture it plays a vital role. Various biotic and abiotic factors affect this decision. Some crucial Environmental factors are Nitrogen Phosphorus, Potassium, pH, Temperature, Humidity, Rainfall. Machine Learning Algorithm can perfectly predict the crop necessary for this environmental condition. Various algorithms and model are used for this process such as feature selection, data cleaning, Training, and testing split etc. Algorithms such as Logistic regression, Decision Tree, Support vector machine, K- Nearest Neighbour, Navies Bayes, Random Forest. A comparison based on the accuracy parameter is presented in this paper along with various training and testing split for optimal choice of best algorithm. This comparison is done on two tools i.e., on Google collab using python and its libraries for implementation of Machine Learning Algorithm and WEKA which is a pre-processing tool to compare various algorithm of machine learning
SYNTHESIS AND ANTIOXIDANT ACTIVITY OF NOVEL 2-ARYL SUBSTITUTED BENZOTHIAZOLE DERIVATIVES
Objective: A series of 2-aryl substituted benzothiazole was designed and synthesized with various substituted benzoic acid. 2-mercaptobenzothiazole and thionyl chloride also used to get carbothiaote. The present study was carried to assess the pharmacological potential towards antioxidant activity of 2-aryl substituted benzothiazole derivatives.
Methods: The antioxidant activity of the synthesized compounds was evaluated by 2, 2-diphenyl-1-picrylhydrazyl (DPPH), and superoxide radical scavenging assay methods.
Results: Compounds showed significant radical scavenging potential due to the presence of electron donating substituent.
Conclusion: These indicate that benzothiazole derivatives showed the defence mechanism to prevent formation of excess free radicals
Dielectric characterization and molecular interaction behaviour in binary mixtures of methyl acetate with 1-butanol and 1-pentanol
The dielectric constant (ɛs) and relaxation time () of binary mixtures of methyl acetate with alcohols (1-butanol and 1-pentanol) have been investigated at fifteen molar concentrations over the entire mixing range at 288 K, 298 K, 308 K and 318 K using time domain reflectometery technique over the frequency range from 10 MHz to 10 GHz. The relaxation in these mixtures can be described by a single relaxation time using the Debye model. The concentration dependent plots of excess dielectric constant (ɛE), excess inverse relaxation time (1/)E, Kirkwood correlation factor (geff), thermodynamic parameters such as enthalpy of activation (H) and Gibbs free energy (G) of activation and Bruggman factor (fB) have been used to explore the complexes formed between unlike molecules, dipolar ordering, hydrogen bond molecular connectivity’s and their strength in the binary mixtures. Results confirm that there are strong hydrogen-bond interactions between unlike molecules of ester-alcohol mixtures
Studies of tractor maintenance and replacement strategies of Wonji Shoa Sugar Factory, Ethiopia
This study mainly focuses on tractor maintenance and replacement strategies to assess the impact of various parameters on the economic life of tractors in order to improve the value of a profitable management choice on selected tractor samples. Considering the preventive replacement policy, the total annual costs were estimated taking account into the repair cost and depreciation costs. At a 95 % level of confidence for each approach, the statistical analysis program "IBM SPSS Statistics 26" was used. An empirical relation based on multiple regression analysis has been generated to predict the economic operational life of a tractor using per-unit repair cost and annual usage (hours). From the analysis, John Deere (9330R), SAME (SAME130), New Holland (NH 80), and Massey Ferguson (MF150) are not supposed to be economical to use in the field after the fifth, seventh, sixth, and eighth years respectively at Wonji Shoa sugar factory due to increasing maintenance cost in present condition
Attendance System Using Face Recognition and Class Monitoring System
In this paper, we propose a system that takes the attendance of students in the lecture. This system takes the attendance automatically using face recognition. However, it is difficult to estimate the attendance exactly using each result of face recognition independently because the face detection rate is not sufficiently high. In our paper, we propose a method for estimating the attendance exactly using all the results of face recognition obtained by continuous observation. Continuous observation improves the performance for the estimation of the attendance. We constructed the attendance system based on face recognition, and applied the system to classroom lecture. In our system, we are using raspberry pi. we use OpenCv library which is installed in pi for face detection and recognition. The camera is connected to raspberry pi and student database is stored in the pi. With the help of this system time will reduce and attendance will be marked. In this paper first review similar works in the field of attendance system and recognition of face. Then, it showing our system structure and plan. At the last, experiments are implemented to provide as manifest to support our plan. The result shows that uninterrupted observation improved the performance for the approximation of the attendance
Genesis of associated red and black shrink-swell soils of Maharashtra
Two associated shrink - swell soils (red and gray coloured) occurring in a catena in the Hingoli district of Maharashtra were taken for this study. Detailed study of the morpho logical, physical and chemical properties indicated that both the soils have Vertisol characteristics. The low hydraulic conductivity of red Vertisols is due to high Mg2+ and Na+ in the exchange complex. Mineralogical properties indicate that smectite is the dominant mineral in both the soils. The presence of kaolin in the gray Vertisols indicate that the transformation of smectite to kaolin in the past humid climate. The absence of kaolin in red Vertisol indicates that the parent material (red bole) was not exposed to the earlier humid climate. They have been formed from the red boles observed in the vicinity of the study area containing high amount of smectite along with palygorskite mineral. The presence ofpalygorskite mineral with smectite in red shrink-swell soils and its absence in other associated soils in a catena indicate that this mineral cannot be considered as an index mineral for arid climate. The release of Mg2* from paly gorskite mineral disperses the clay and clogs the pores resulting impeded drainage which adversely affected the crop productio
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