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1254 articles for “comparisons”
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Comparison of Performance of Haar Wavelet Transform on 3D-2D Multi-Sensor Face Images Using Simulation Model
Abstract: Human face has its own unique characteristics that are always considered to be the valid biometric feature for automation of security systems. A dedicated system doesn’t only require accurate algorithm but also it is required to be executed with a minimum span of time. In this literature, authors have stated and demonstrated a wavelet based feature space design mechanism from human faces and also analyzed the performance of execution for …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 3, Issue 1, 2015 · pp. 11–27 Read article
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Comparison of Existing Experimental Results with Different Types of Simulation Software for Transmission Loss Estimation of Muffler
Abstract: Acoustic Muffler’s characteristics are calculated by Transmission Loss and Insertion Loss. Single expansion chamber is generally used as noise reduction elements in exhaust systems. To quantify its effectiveness, transmission loss is commonly used as a parameter comparing the transmitted with incident sound pressure level. Mufflers are typically arranged along the exhaust pipe as the part of the exhaust system of an internal combustion engine to reduce its noise. Tao and …
Published in Trends in Machine design · Vol. 2, Issue 1, 2015 · pp. 17–20 Read article
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Finite Element Analysis of Tool Wear Rate in Electrical Discharge Machining and Comparison with Experimental Results
Abstract: Electrical discharge machining (EDM) is one of the precise non-traditional machining processes in which desired shape is obtained in workpiece using electrical sparks. In EDM, material removal from workpiece and tool takes place by means of successive sparks occurring between them. The tool wear is a critical problem in EDM as the change in tool shape directly affects the final shape of the workpiece. In this paper, finite element analysis …
Published in Trends in Machine design · Vol. 3, Issue 3, 2016 · pp. 18–22 Read article
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Performance comparison of DWT OFDM systems and FFT OFDM system over an AWGN channel
Abstract: Orthogonal frequency-division multiplexing (OFDM) is a method of encoding digital data on multiple carrier frequencies. The OFDM systems till now have been used as what we can call as a conventional OFDM incorporates Inverse Fast Fourier Transform (IFFT) blocks in their transmitters and FFT (FFT) blocks in their receivers. Recent research shows that the use of Inverse Discrete Wavelet Transform (IDWT) in place of IFFT and Discrete Wavelet Transform (DWT) …
Published in Recent Trends in Electronics Communication Systems · Vol. 2, Issue 2, 2015 · pp. 41–46 Read article
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Comparison between First and Second Stage of Clock Drivers Using 65 nm PTM
Abstract: The paper is composed of generally two parts. The first part basically deals with the designing of clock distribution network for a branch-2 tree, also a wire model for 1 mm wire and designing a clock distribution network using wires and inverter pairs (buffers) to distribute a clock to the loads. Keeping this in to account simulation is analyzed and evaluated the results. The second part is to designing a …
Published in Journal of Microcontroller Engineering and Applications · Vol. 3, Issue 1, 2016 · pp. 10–15 Read article
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Comparison of Stack Type EGR Cooler for Diesel Engine using CFD
Abstract: The EGR (exhaust gas recirculation) technique can greatly reduce the NOx emission of diesel engines; especially when an EGR cooler is employed. Numerical simulations are applied to study the flow field and temperature distributions inside the EGR cooler. Three different models of EGR cooler are investigated, among which model A is a traditional one, shell and tube type, while models B is stack type. In model C, fins are added …
Published in Recent Trends in Fluid Mechanics · Vol. 3, Issue 2, 2016 · pp. 1–5 Read article
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Comparison Study between Pd/AC and Pd/CB for Simultaneous Production of Hydrogen and Carbon Nanotubes using Thermocatalytic Decomposition of Methane
Abstract: Hydrogen is an attractive alternative source of the future need. It could be produced from the diverse sources and is used for a transport fuel which chiefly alliance with fuel cells. The crucial challenge for hydrogen production is reducing the price of production technologies to make the ensuing hydrogen price economical with conventional fuels. Thermocatalytic decomposition (TCD) of methane is one of the most advantageous technique which will meet the …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 18, Issue 1, 2016 · pp. 18–26 Read article
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Structural Vigor Comparison of a CNG Cylinder with Different Material Cull
Abstract: The present research deals with the structural analysis of a CNG cylinder being utilized in conveyances as fuel source. The portable CNG cylinders are being utilized in conveyances due to their preponderation in vigor, weight advantage, and lower engenderment costs. A design of cylinder is first presented for which the research is performed. Then, a finite element model of the vessel is utilized to estimate whether the current design has …
Published in Trends in Mechanical Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 81–88 Read article
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Comparison of Experimental and Theoretical Results of Tool Wear Rate in Electrical Discharge Machining
Abstract: Though electrical discharge machining (EDM) process is capable for complex and precise machining of materials irrespective of their hardness, it has certain limitations like low material removal rate (MRR), high tool wear rate (TWR), etc. which restrict its application areas. In EDM, material removal from workpiece and tool takes place by means of sparking between them which is a quite complex process. So, it is difficult to predict material removal …
Published in Trends in Mechanical Engineering & Technology · Vol. 6, Issue 3, 2016 · pp. 53–57 Read article
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Comparison Study of the Reactivity of 2-Acetyl Heterocyclic Compound toward Aldol Condensation with Benzaldehyde Derivatives
Abstract: Some new chalcones have been synthesized by condensation of 2-acetyl pyrrol, 3-acetyl pyridine and 3-acetyl indole with various aromatic aldehydes in 25% alcoholic alkali. The synthesized compounds were identified by spectral and physical methods. From the time of reactions and the yield of the products, we can state that there were some obvious differences in the reactivity between the heterocyclic compounds used. Keywords: Reactivity, chalcone, aldol condensation, heterocyclic compounds, benzaldehyde …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 7, Issue 1, 2016 · pp. 34–38 Read article
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Passive Microwave Remote Sensing of Flood: A Comparison of Various Methods
Abstract: Microwave Remote Sensing is used to detect different land cover types such as, bare soil, water bodies, vegetation cover, forest cover etc., and using different procedures. In this paper, we have targeted on a methodology to detect difference between land and water by using brightness temperature at different frequencies during the flooding period. Disastrous flood occurred in Kashmir (India) during 2014, and passive microwave remote sensing data are utilized for …
Published in Journal of Remote Sensing & GIS · Vol. 6, Issue 1, 2015 · pp. 17–23 Read article
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Analytical Comparison of a Gas Turbine Blade Cooling Using Wet and Dry Air
Abstract: Air cooling is widely used technique to shield the turbine aerofoils against hot flue gases. The cooling of a gas turbine blade using wet air and dry air as a coolant is analytically investigated. The investigation is carried out considering effect of rotation for inward and outward flow of coolant. Wet air cooling performance is compared with dry air cooling. It has been observed that wet air provides better cooling …
Published in Journal of Experimental & Applied Mechanics · Vol. 7, Issue 3, 2016 · pp. 1–12 Read article
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Comparison of the Keratinase Gene Sequences of Fast, Slow and Intermediate Feather Degrading Strains of Bacillus licheniformis
Abstract: Feathers are composed of beta keratin which is an insoluble protein resistant to degradation. Bacillus licheniformis has a gene that codes for a keratinase enzyme that hydrolyzes feathers. The DNA sequences of the genes coding for keratinase enzymes of various strains of B. licheniformis were compared. Some strains of the bacteria hydrolyze feathers rapidly, some slowly, and some at an intermediate rate. The mature keratinase enzyme is composed of 274 …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 5, Issue 3, 2015 · pp. 1–9 Read article
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A Comparison Between Two Association Rule Mining Techniques
Abstract: Normal 0 false false false EN-US X-NONE X-NONE Data mining requires associated items to be mined from given transactions. Association rule mining (ARM) has gained importance in view of trend-prediction and decision-making process. Mostly ARM is implemented using variants of FP tree growth techniques. This paper introduces an improved technique for ARM – Improved Relative Dotted Sequence Path (IRDSP)-based ARM. The logic justifying why this technique saves time in comparison …
Published in Current Trends in Information Technology · Vol. 1, Issue 2-3, 2011 · pp. 1–7 Read article
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Comparison of Measurement Accuracy of Aneroid, Digital, and Mercury Sphygmomanometer
Abstract: The aim of this study was to compare measurement accuracy of both Digital sphygmomanometer and Aneroid sphygmomanometer with Mercury sphygmomanometer (gold standard). The objectives of the study were to evaluate agreement between the measurements of Aneroid and Digital sphygmomanometer with the measurement of Mercury sphygmomanometer; and to evaluate the diagnostic utility of Aneroid and Digital sphygmomanometer. This study was conducted on 108 nursing students by using quantitative approach. The blood …
Published in Journal of Nursing Science & Practice · Vol. 6, Issue 2, 2016 · pp. 28–32 Read article
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Comparison of Photocatalytic activity of Various Metallic and Non-metallic doped TiO2 Nano Particles for Treatment of Pharmaceutical Effluent
Abstract: The use of semiconductor oxide particles such as TiO2 as photo catalysts has shown great utility in the complete mineralization of organic compounds present in effluent. The dopant maximize the electron trapping for further inhibiting excitation recombination and thereby enhancing the oxidation of organic compounds. A pilot scale synthesis of TiO2 nano particles has been carried out using the Sol-gel method with various metallic dopants like Iron, Copper, Cobalt, Vanadium, …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 8, Issue 2, 2018 · pp. 7–14 Read article
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Comparison of ground-based and satellite retrievals of Total column ozone at Visakhapatnam-India
Abstract: This work represents a comparison study of total column ozone data from the ground-based Microtops-II spectrophotometer and the overpass data from satellite instrument EPTOMS/OMI in Visakhapatnam-India (Lat.17o 421N, Long 83o 141E) for the year 2005-2008. The result indicated that data obtained with ozonometer and OMI instrument are found to be in close agreement with each other, and overall correlation coefficient between these two datasets is 0.93, which is significant at …
Published in Journal of Offshore Structure and Technology · Vol. 7, Issue 2, 2020 · pp. 9–13 Read article
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GIS Based Approach for the Identification of Gaps in the Provision of Urban Amenities: A Comparison Between Srinagar and Jammu Urban Centers
Abstract: Urban amenities comprise the infrastructure, goods and services that are needed for the sustenance and growth of urban societies. Rapid urbanization and consequent unplanned growth of cities result in deterioration of infrastructure facilities and natural endowments. The reasons for the uneven distribution of urban amenities in Srinagar and Jammu are spurt urban growth and poor management planning. The paper examines provision of various urban amenities in Srinagar and Jammu cities …
Published in Journal of Remote Sensing & GIS · Vol. 8, Issue 3, 2017 · pp. 46–55 Read article
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Comparison between Methanolic and Ethanolic Extract of Calendula offcinalis (Antimicrobial agent) against Gram-Positive and Gram-Negative Bacteria
Abstract: The aim of the present study was to determine the antimicrobial study of methanolic and ethanolic extracts of marigold/zendu (Marathi) (Calendula officinalis linn.) petals against gram-positive and gram-negative pathogens. The antimicrobial study of C. officinalis extracts has been evaluated by disc diffusion method against number of bacteria and methanolic extract of C. officinalis exhibited better antibacterial activity against most of the bacteria tested, than ethanolic extract. Both methanol and ethanol …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 8, Issue 3, 2018 · pp. 22–25 Read article
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COMPARISON OF LAND COVER METHODS INCORPORATING LANDSAT-8 IMAGING AND ANCILLARY DATA
Abstract: Dramatic land-cover modifications have been documented across Malaysia over the past few centuries. Previously forested regions converted primarily into rubber, oil palms and agricultural regions. A present land-cover data required owing to the ongoing land-cover modifications that researchers, planners, and decision-makers will be using. Landsat data is an excellent source of effective land-cover maps creation and updating. The aim of this research is to establish a low-cost method together with …
Published in Journal of Remote Sensing & GIS · Vol. 10, Issue 3, 2019 · pp. 25–47 Read article