Developing software module for BP and BMEP parameters in IC Engine using VB.Net

This document reviews the history of free-piston internal combustion engines, from the air compressors and gas generators used in the mid-20th century through to recent free-piston hydraulic engines and linear electric generators. Unique features of the free-piston engine are presented and their effects on engine operation are discussed, along with potential advantages and disadvantages compared to conventional engines. The paper focuses mainly on developed engines where operational data has been reported. Finally, the potential of the free-piston engine is evaluated and the most promising designs identified. For different requirements different types of piston are made, but all that work has to do manually which is usually time consuming, complex in calculation, more chance of error occurs. For getting rid of this problem a software or execution of a program in a computer language such as in C, VB.Ne

Framework for reversible data hiding using cost-effective encoding system for video steganography

Importances of reversible data hiding practices are always higher in contrast to any conventional data hiding schemes owing to its capability to generate distortion free cover media. Review of existing approaches on reversible data hiding approaches shows variable scheme mainly focussing on the embedding mechanism; however, such schemes could be furthermore improved using encoding scheme for optimal embedding performance. Therefore, the proposed manuscript discusses about a cost-effective scheme where a novel encoding scheme has been used with larger block sizes which reduces the dependencies over larger number of blocks. Further a gradient-based image registration technique is applied to ensure higher quality of the reconstructed signal over the decoding end. The study outcome shows that proposed data hiding technique is proven better than existing data hiding scheme with good balance between security and restored signal quality upon extraction of data

Synthesis and anti-inflammatory and analgesic activity of 5-(1H-benzo[d] imidazol-2-yl) methyl)-3-(3,5-dimethyl-4-isoxazolyl)-2-aryl-thiazolidin-4-ones

252-257A new series of 5-(1H-benzo[d] imidazol-2-yl) methyl)-3-(3,5-dimethyl-4-isoxazolyl)-2-aryl-thiazolidin-4-ones 4 have been accomplished by a simple synthetic protocol. The reaction of 4-benzalamino-3,5-dimethylisoxazoles 3 with mercapto succinic acid furnishes 2-(3-(3,5-dimethyl-4-isoxazolyl)-4-oxo-2-aryl thiazolidin-5-yl) acetic acids 3, which are then cyclized to the title compounds viz., isoxazolyl thiazolyl benzimidazoles 4 on treatment with 1,2-phenylene diamines. The title compounds 4 have been screened for their anti-inflammatory and analgesic activity

Fuzzy Logic Controlled Microturbine Generation System for Distributed Generation

AbstractThe microturbine based Distributed Generation (DG) system are becoming the popular source of power industries due to their fuel flexibility, reliability and power quality. The microturbine generation (MTG) system is a complicated thermodynamic electromechanical system with a high speed of rotation, frequency conversion and its control strategy. In spite of several techniques to control high speed of microturbine is not accurate and reliable due to their anti-interference problem. To resolve the anti-interfacing problem, this paper investigates the fuzzy logic based speed governor for a MTG system as an alternative to nominal PI or lead-lag based controller. The development of fuzzy logic based speed governor includes input and output membership function with their respective members. The load variation on MTG system is performed using conventional and fuzzy logic controller, implemented in Matlab/simulink and results are compared with each other. The simulation result shows that, the performance improvement of fuzzy logic governor over a nominal governor based MTG system

Design and Development of Microcontroller-Based Clinical Chemistry Analyser for Measurement of Various Blood Biochemistry Parameters

Clinical chemistry analyser is a high-performance microcontroller-based photometric biochemical analyser to measure various blood biochemical parameters such as blood glucose, urea, protein, bilirubin, and so forth, and also to measure and observe enzyme growth occurred while performing the other biochemical tests such as ALT (alkaline amino transferase), amylase, AST (aspartate amino transferase), and so forth. These tests are of great significance in biochemistry and used for diagnostic purposes and classifying various disorders and diseases such as diabetes, liver malfunctioning, renal diseases, and so forth. An inexpensive clinical chemistry analyser developed by the authors is described in this paper. This is an open system in which any reagent kit available in the market can be used. The system is based on the principle of absorbance transmittance photometry. System design is based around 80C31 microcontroller with RAM, EPROM, and peripheral interface devices. The developed system incorporates light source, an optical module, interference filters of various wave lengths, peltier device for maintaining required temperature of the mixture in flow cell, peristaltic pump for sample aspiration, graphic LCD display for displaying blood parameters, patients test results and kinetic test graph, 40 columns mini thermal printer, and also 32-key keyboard for executing various functions. The lab tests conducted on the instrument include versatility of the analyzer, flexibility of the software, and treatment of sample. The prototype was tested and evaluated over 1000 blood samples successfully for seventeen blood parameters. Evaluation was carried out at Government Medical College and Hospital, the Department of Biochemistry. The test results were found to be comparable with other standard instruments

Structural and compositional properties of 2D CH3NH3PbI3 hybrid halide perovskite: a DFT study

Two-dimensional (2D) hybrid halide perovskites have been scrutinized as candidate materials for solar cells because of their tunable structural and compositional properties. Results based on density functional theory demonstrate its thickness-dependent stability. We have observed that the bandgap decreases from the mono- to quad-layer because of the transformation from 2D towards 3D. Due to the transformation, the carrier mobility is lowered with the corresponding smaller effective mass. On the other hand, the multilayer structures have good optical properties with an absorption coefficient of about 105 cm−1. The calculated absorption spectra lie between 248 nm and 496 nm, leading to optical activity of the 2D multilayer CH3NH3PbI3 systems in the visible and ultraviolet regions. The strength of the optical absorption increases with an increase in thickness. Overall results from this theoretical study suggest that this 2D multilayer CH3NH3PbI3 is a good candidate for photovoltaic and optoelectronic device applications

Thermo-elastic-plastic transition in torsion of composite thick-walled circular cylinder subjected to pressure

The purpose of this paper is to present study of thermo-elastic-plastic transition in torsion of composite thick-walled circular cylinder subjected to pressure. The concept of transition theory is applied to evaluate shear stresses in a cylinder under torsion. Generalized strain measures are used to simplify the fundamental equations. It has been deduced from the analysis of stresses in the cylinder that in case of torsion, the cylinder of less non-homogeneous material without temperature is a safe design in comparison to the cylinder of highly non-homogeneous material with or without thermal effects, because shear stresses are maximal for the cylinder of less non-homogeneous material without thermal effects than for the non-homogeneous cylinder of high compressibility

Thermo-elastic-plastic transition in torsion of composite thick-walled circular cylinder subjected to pressure

The purpose of this paper is to present study of thermo-elastic-plastic transition in torsion of composite thick-walled circular cylinder subjected to pressure. The concept of transition theory is applied to evaluate shear stresses in a cylinder under torsion. Generalized strain measures are used to simplify the fundamental equations. It has been deduced from the analysis of stresses in the cylinder that in case of torsion, the cylinder of less non-homogeneous material without temperature is a safe design in comparison to the cylinder of highly non-homogeneous material with or without thermal effects, because shear stresses are maximal for the cylinder of less non-homogeneous material without thermal effects than for the non-homogeneous cylinder of high compressibility