Volume 6 | Issue 2 |

 Abstract

Pattern recognition of speech signals is ability to translate a spoken word to text format. This paper presents an authority speech recognition system based on curvelet transform and artificial neural network techniques to enhance the recognition rate. This research comprised in two distinct phases, a feature extractor and recognizer is presented. In feature extraction phase, curvelet transform extract the features from the input speech signal and detail components of these signals which assist in achieving higher recognition rate. For feature matching, artificial neural networks is used as classifiers. The performance evaluation has been described in terms of accurate recognition rate, interfering sounds, hit rates, false alarm and miss rates. The rate of accurate classification was about 95.3 % for the sample speech signals.

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 Keywords

Pattern Recognition, Speech recognition, Curvelet transforms, Feature extraction, Artificial intelligence.

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

As of now, close by there is a raising movement of people towards metropolitan zones. Physical condition concerned naval forces are the lone critical viewpoint that is profoundly overstated by means of the tremendous incur of masses to metropolitan focuses. In like manner, urban areas about the earth are contributing profoundly encompassed by advanced insurgency that undertaking to invest with physically fit once more bionetwork for masses. Amid such unrest, a huge number of homes are mortal set with shrewd procedure which generates the enormous quantity of net-texture and indistinguishable information to facilitate can be equipped for investigating the keen city administrations. In this original copy, we prescribe an imitation to encourage the use of the keen abiding huge insights as an asset of savvies and finding singular developments for prosperity concerned applications. We plan to utilize the continuous example mining, group examination and figure to assess and investigate vitality dealing with changes started by inhabitants' activities. Since individuals' training are consistently perceived by day by day schedules, finding these timetables enables us to recognize the anomalous activities that may assign individuals' trouble in charming nurture themselves, for example, foodstuff not been prepared on time or don't have a shower. Our effort tends to that require investigating the common vitality use designs at the electrical gadget level, which is straightly interrelated to singular activities.

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 Keywords

mining, metropolitan, electrical devices, physical condition, Activity Recognition

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

Expansive soils have a high tendency of swelling and shrinking behavior depending on the seasonal variations; its volume increases during a rainy season and decreases during a dry season. Due to swelling and shrinking characteristics, it brings a major problem on geotechnical engineering structures and devastation to life. A road which is being constructed on expansive soils has no strength to carry a load and cannot resist any stresses. As it was reviewed from different literatures, the combination of lime and CSP stabilizes a problematic soil. The laboratory characteristics of subgrade expansive soils was investigated before and after the addition of lime and coconut shell powder separately and both mixtures to soils at different percentage, thus the properties of these materials was discussed and analyzed for how much they are effective in soil stabilization. Lime and coconut shell powder stabilization is the best option to control the volume changes of fine grained and expansive soils by adding appropriate percentage. Under this research the effectiveness (performance) of Lime and coconut shell powder was analyzed to determine the shear strength and swelling characteristics of expansive soils. The soil classification, Index Property, standard proctor compaction behavior, California Bearing Ratio (CBR), Optimum Moisture Content (OMC), Unconfined Compression Strength (UCS) and Free Swell properties were determined. The lime and CSP stabilized soil increases the value of CBR and UCS; the amount of the material added to the soil has a great impact for the strength being developed. Addition of lime and CSP are the most stabilizers used to reduce the plasticity of the soil and improves the strength of the soil and it brings a permanent modification with an easy manner. The optimum compressive strength of lime and CSP treated soil increases up to 6% and 5% respectively and starts to decreases as the amount of the material increases. The 8% of lime and 7% of CSP mixing together also increases the values of UCS. The increment of UCS due to lime and CSP is due to the initial increment of the moisture content. As the content of lime and CSP increases, the amount of moisture content increases and the dry density of the treated materials decreases due to the low specific gravity of lime and CSP relative to soil.

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 Keywords

California bearing ratio, expansive soil, soil stabilization, Black cotton soil, coconut shell powder.

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

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Creative Commons Attribution 4.0 and The Open Definition

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Pneumatic system, Worm gear and Hand operated direction control valves

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Creative Commons Attribution 4.0 and The Open Definition

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In this study, we report the study of the inhibition effect of Nardostachys jatamansi root extract on corrosion of mild steel in hydrochloric acid using weight loss measurements and electrochemical techniques. The inhibitor efficiency of Nardostachys jatamansi root extract was found to vary with concentration was kept uniform for 24 h and temperatures were kept uniform for 2 h. Experimental results revealed that inhibition efficiency (I.E %) increased with increasing inhibitor concentration. As temperatures increased, a percentage of inhibition decreases. Experimental results revealed that inhibition efficiency (I.E %) increased with increasing inhibitor concentration. As temperatures increased, a percentage of inhibition decreases. The inhibitive and adsorptive characteristics of ethanol extract of Nardostachys jatamansi root extract for the corrosion of mild steel (MS) in 1M HCl solutions have been studied using following methods for monitoring corrosion. Ethanol extract of Nardostachys jatamansi root extract is a good adsorption inhibitor for the corrosion of mild steel in HCl. The methods used were weight loss, an effect of temperature, polarization and Electrochemical Impedance Spectroscopic (EIS). The inhibition efficiency(I.E.) increases with inhibitor concentration. The adsorption study of these compounds of mild steel surface found to obey Nardostachys jatamansi root extract adsorption isotherm. The value of free energy of adsorption ( ?G0ads ), a heat of adsorption (Quads), the energy of activation (Ea), enthalpy of adsorption( ?H0ads) and entropy of adsorption ( ?S0ads) were calculated. The present study indicates that Nardostachys jatamansi root extract is a good inhibitor for the corrosion of Mild steel in the hydrochloric acid medium.

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 Keywords

Mild steel, Hydrochloric acid, Nardostachys jatamansi root extract, corrosion, inhibition effect.

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

During the past decade, nanotechnology with its brisk development has seized the attention of scholars, scientists and engineers. Nanolubricants are one of the astonishing outcomes of nanotechnology which could remarkably enhance the effectiveness of lubricating systems. In this study, an attempt has been made to cover the factors affecting the viscosity of nanolubricants. Through the available literature, the effects of volume fraction, temperature, particle size and shape on the viscosity of nanolubricants are discussed.

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Nanolubricants; viscosity; lubricating systems; volume fraction; temperature

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

Ranking is a relationship between an arrangement of things such that, for any two things, the first is either 'positioned higher than', 'positioned lower than' or 'positioned equivalent to' the second. Review Mining is one of the current branches of data mining. Review is a combination of words, and sentences. Review mining depends on the reviews of different clients. Review mining is utilized to classify each review as positive or negative. Review mining is known as a kind of common dialect preparing if there should arise an occurrence of recognizing the mind-set of the general population about a specific item. Review mining and sentiment analysis have been used to cover a wide extent of uses. As there are many customer reviews available on the Internet and going through all the reviews is not possible because the number of reviews can be large or can be lengthy which can consume most of the time of the user. So subsequently, it is vital to reflect reviews in a ranking to settle on a decision effortlessly. This survey has explored various papers and research-work which examines the suggestion strategy in light of opinion mining using to prescribe top ranking to the purchasers.

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Creative Commons Attribution 4.0 and The Open Definition

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Data Mining, Predictive Analytics, Stepwise Linear Regression Model, C4.5 Decision Tree, K-Nearest Neighbor, Machine Learning Algorithm, Regression Techniques, and Classification Techniques, Agriculture

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

The present paper proposes to extend the notion of quasimetric on an arbitrary atomistic lattice L. Such a matric lattice on L will determine a neighbourhood (shortly nhd) structure, a generalisation of which leads to the concepts of uniformity as well as proximity on L.

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

quasimetric lattice (non-symmetric metric), arbitrary atomistic lattice, uniformity, proximity

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

In Construction Industry, competitive bidding has long been used as a method for contractor selection. Because the true cost of the project is not known until the completion of the project, adverse selection is a major concern. Since the tendering process is inherently price competitive, the application of the tendering contract concept is likely to severely inhibit the opportunity for alternative tenders this paper aims at providing an overview about literature on tendering process for infrastructure projects. Three main interest areas can be found in the literature: tendering procedures, types of tenders and criteria for bid evaluation.

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Tendering, Tendering Procedure, Bid Evaluation, Bid Evaluation Criteria

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Creative Commons Attribution 4.0 and The Open Definition