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Description Aerodynamic Noise extensively covers the theoretical basis and mathematical modeling of sound, especially the undesirable sounds produced by aircraft. This noise could come from an aircraft's engine-propellers, fans, combustion chamber, jets-or the vehicle itself-external surfaces-or from sonic booms. The majority of the sound produced is due to the motion of air and its interaction with solid boundaries, and this is the main discussion of the book. With problem sets at the end of each chapter, Aerodynamic Noise is ideal for graduate students of mechanical and aerospace engineering.

It may also be useful for designers of cars, trains, and wind turbines. Product details Format Paperback pages Dimensions x x 9. Illustrations note XIV, p. Other books in this series. Simulating Spacecraft Systems Jens Eickhoff. Add to basket. Key Factors of Combustion Nikolai M. Practical Astrodynamics Alessandro de Iaco Veris. Back cover copy Aerodynamic Noise extensively covers the theoretical basis and mathematical modeling of sound, especially the undesirable sounds produced by aircraft.

This paper is about copy move, splicing forgery classification of various geometrical attacks. The deep convolution neural network is used to classify images into forged or not forged and also classify which type of forgery is present. Abstract: Fraud is any malicious activity that aims to cause financial loss to the other party.

As the use of digital money or plastic money even in developing countries is on the rise so is the fraud associated with them. Frauds caused by Credit Cards have costs consumers and banks billions of dollars globally. Even after numerous mechanisms to stop fraud, fraudsters are continuously trying to find new ways and tricks to commit fraud. Thus, in order to stop these frauds we need a powerful fraud detection system which not only detects the fraud but also detects it before it takes place and in an accurate manner. We need to also make our systems learn from the past committed frauds and make them capable of adapting to future new methods of frauds.

In this paper we have introduced the concept of frauds related to credit cards and their various types. An extensive review is done on the existing and proposed models for credit card fraud detection and has done a comparative study on these techniques on the basis of quantitative measurements such as accuracy, detection rate and false alarm rate. The conclusion of our study explains the drawbacks of existing models and provides a better solution in order to overcome them. Abstract: Wireless sensor network in recent days affected with two main research problem such as message authentication and location privacy.

ECESA involves three phase: i private and public key generation using Elliptic Curve Cryptography ECC , ii ElGamal signature arrangement for effective message encryption and iii matching the decrypted result with MD5 hash value for authentication of the authorized person. The most important privacy preserving techniques are the EZBT to send the messages either sink to source or from source to sink with the location privacy scheme.

On account of this, the proxy source and sink is selected while using the Euclidean distance technique. Finally, the efficiency of the work has been demonstrated through the simulation results of location privacy and message verification. Then the performance are validated in terms of quality of service QoS. Abstract: Urbanisation and the day to day exponential increase in the number of automobileshas increased the usage of rubber.

Due to this, the amount of scrap rubber is also increasingwhich is generally left for scrap deposition in landfills. According to a recent survey, it is estimated that the rubber scrap will reach nearly 1. Scrap tyres are also harm to environment as they are non—biodegradable and a good catchment area for breading of mosquitoes androdents. Large amounts of cross-ply rubber are also being deposited along the path of aircraft runways which is a huge threat in terms of skid resistance factor of aircrafts.

Further, there is a limitation in recycling of these in the use of crumb rubber as well as polymer fibre material. As anattempt to reusethis waste, many experimental studies are carried out using it as a filler material in concrete industry. This paper presents a review of the work carried out by the past and recent researchers who studied the fresh and hardened properties of concrete with crumb rubber as anauxiliary material. Keywords: Bias tyre, Crumb rubber, Pre-treatment, Radial tyre.

Abstract: Abrasive waterjet cutting is one of the unconventional cutting processes capable of cutting extensive range of difficult-to-cut materials. This paper assesses the impact of process parameters on surface roughness which is a significant machining performance measure in abrasive waterjet cutting of hastelloy.

Experiments were conducted in varying nozzle traverse speed, abrasive mass flow rate and standoff distance for cutting hastelloy using abrasive waterjet cutting process. The effects of these parameters on surface roughness have been discussed. Keywords: Hastelloy; mass flow rate; traverse speed; standoff distance; garnet.

Abstract: In traditional web applications, the communication with the server is initiated by the client by sending a page request. The request is processed by the server and the resulting webpage is sent to the client. For subsequent interactions within the page like a link is navigated or a form is submitted with data, a new request is generated and sent to the server. The server repeats the sequence of action for processing the request and the response is generated by sending a new page to the client.

This means the entire page is not reloaded only the portion of the page that has changed is updated by the browser. This approach increases the response time of the application. Emerging technologies like ASP. Our result shows 10 times improvement in initial loading time and the server response time is reduced to half.

Keywords: ASP. Abstract: The search for well-organized image de-noising techniques is still a valid challenge at the crossing of functional learning and statistics. In spite of the refinement of the currently proposed methods, most algorithms have not yet succeeded a desirable level of applicability. In order to reduce the drawbacks in the earlier methods, a novel algorithm probabilistic method is associated as two-dimensional non-harmonic analysis called mask non-harmonic analysis such a way that the noise is degraded in the input image.

In this, the entire region of the image is considered as homogeneous texture. But when the noise content is more, the segmentation of a noisy image into original images become more complex. Hence, Random walker segmentation is implemented for segmentation with canny detection algorithm in order to preserve edges. Then the regions obtained from the segmentation are analyzed using mask NHA algorithm. Theoretical analysis and experimental results are reported to illustrate the usefulness and potential applicability of our algorithm on various computer vision fields, including image enhancement, edge detection, image decomposition, and other applications.

We have extended the analysis on the effect of quality factor on the switch on settling time. The holes in the cantilever help the switch to reduce the settling time. The quality factor of the switch designed with Al cantilever is 0. Low quality factor indicated damping effect is reduced.

Si3N4 is used as dielectric material, with this the switch is offering high capacitance ratio. The series switch is offering high isolation at 2. The isolation losses of the switch is dB, insertion loss is Abstract: Anomaly detection system in network, monitors and detects intrusions in the networking area, which is referred to as NIDS, the Intrusion Detection System in Networks.

There are numerous network datasets available in networking communications with relevant and irrelevant features drastically decreases the rate of intrusion detection and increases False Alarm Rate. The top significant features are proposed as feature selection for dimensionality reduction in order to obtain more accuracy in attack detection and to decrease False Alarm Rate. We apply a combination fusion of Random Forest Algorithm with Decision Tree Classifier using Anaconda3 free and open-source distribution of Python3 and package management system Conda in which 45 features have been decreased to the strongest four features.

The proposed system detects normal and attacks with a better accuracy using Deep Learning technique. Abstract: Self compacting concrete is one of the new concepts, without using any external vibrations and labors can easily fill the formwork even in difficulty places without segregation. For such cases, SCC possesses good flowability and cohesiveness. In this study, two mineral admixtures were used to improve the required quality of concrete. The main aim of this study is to evaluate the workability and compressive strength property of SCC containing mineral admixtures such as fly ash and alccofine.

Compressive strength values of SCC mixes were determined at different curing periods. The test results indicate that the combination of fly ash and alccofine in cement replacement produce M25 grade concrete. Abstract: Identification and verification of hard written signature from images is major issue. This is very difficult as even human eye does not have that much visual ability to identify every detail of the in handwritten. Signature changes every time so it is difficult for humans to identify the original and forged ones. By using deep learning which uses the sophisticated is digital configured replica of human brain, we can identify the forgery done in signature with higher accuracy.

Keywords: Deep learning, digital configured replica, forgery, signature. Abstract: D. Diesel engines are the monetarily utilized vehicles in day by day practice. The execution of D. Diesel engine to a great extent relies upon the ignition elements inside the cylinder. Thus, such combustion is affected by the shower qualities, fuel substance and afterward the movement of the cylinder. The primary issue with diesel engines is discharges of nitrogen oxides NOx and particulates.

So as to limit the discharges, it is important to structure the diesel engine with better in-cylinder stream air-fuel blending and combustion procedure. A little direct injection DI engine was picked for the examination. CFD re-enactment results were contrasted and that of engine emissiontests. This paper likewise shows the reproduction after effects of direct infusion diesel motor in-chamber stream air fuel blending and combustion. Abstract: Self compacting concrete SCC is emerging technology in the construction industry. SCC has the ability to flow and fill the formwork without using any external vibrations.

In this study, SCC mixes are manufactured in two categories. Abstract: Safe and high-quality healthcare service is of supreme significance to patients. A major problem in the IoT dependent healthcare system is the fortification of privacy. Usually, a healthcare service contributor receives data from its patients and distributes them with healthcare experts or registered clinics.

The contributor may perhaps share out the data to pharmaceutical companies and health insurance companies. Hence, for overcoming the challenges existing in security, this paper has come out with a privacy-preserving technique with significant data extraction from IoT devices linked with healthcare sector.

According to the adopted scheme, the information obtained from IoT devices is processed for preserving the sensitive data, such that unknown people are prohibited to access them. The objective of the proposed scheme is to minimize hiding failure rate, modification degree, and true positive value for better preservation of sensitive data. Also, the statistical analysis of the presented method is measured for three test cases, and the effectiveness of the implemented method is revealed. Abstract: The bio-based FRP composites are fast growing in industrial applications and fundamental research.

Bio based fibers have been proved to be better alternative to synthetic fiber in automobiles, railway coaches and aerospace applications. Polymers are finding wide applications in our daily life due to their exclusive properties such as higher strength to weight ratio, lightness, economy, chemical resistance etc.

Polymer composites are materials with many outstanding properties and in order to make them biodegradable or partially biodegradable, lot of efforts have been made to use bio based fibers as reinforcement. But the performance of these bio based composites depends on the properties of the reinforcing fibers and the bonding between the matrix and the fibers. The current research focuses on jute fiber reinforced polymer matrix composites that can be used for structural and electrical applications. In this work sawdust and wheat flour are used as filler material.

Four samples of different compositions and fillers are developed by means of hand layup process. Surface morphology of composites have also been studied. Keywords: LapoxL12, saw dust, hemicelluloses, flexural test.

Aerodynamic Noise

Abstract: Aluminum composites are very rapidly replacing engineering metals and alloys because of its light weight and high strength in aerospace and biomedical applications etc. The serious examination on impact of surface roughness of Aluminum TiB2 composite is done. The material is subjected for turning operation to contemplate the surface roughness. This investigation centers around building up an exact model for expectation of surface unpleasantness on manufactured composite. The working parameters are speed, feed, depth of cut and tool nose radius. One of the data mining techniques non-linear regression analysis is applied in developing the empirical model, this model is transferred to software by visual basic programming language.

The test results show that the value of surface roughness is low at high cutting speed and comparatively high at low cutting speed. Surface roughness increases with increase in feed and depth of cut. The values of surface roughness of models compared with experimental results. This models developed in this study have a satisfactory compatibility in both model construction and verification and there is a scope for future work. Keywords: Al alloy, In-situ technique, surface roughness, regression analysis, tool nose radius.

Abstract: In this paper, the optimal scheduling of UEs per cell is carried out to increase the spectral efficiency of 5G wireless networks with massive MIMO antennas in multi-cell systems. The scheduling of UEs is carried out in terms of several system parameters.

How do Airplanes fly ?

The scheduling is carried out by considering a multi-objective function that optimizes of arbitrary pilot reuse, power control and random user locations. Expressions are derived to validate uplink and downlink transmission with power control and random user locations to increase the performance of UEs. The inter-cell interferences are suppressed using linear processing schemes in a coordinated beamforming fashion.

Abstract: The helmet is defensive thing, used to shield head from foremost injuries. The head protector fundamentally ensures the skull and mind amid lethal mishaps. So the fundamental subject of the protective helmet is to safe watch the rider or the talented operator amid mishaps. It is essential for the rider to wear head protector, amid the riding of the vehicle as its exceptionally basic nowadays, that the little to significant mishaps occurring, not on account of the riders speed, might be a result of the environment, current streets, busy works of the general public and a few exposures on street.

So the mishaps are unavoidable however we must be progressively watchful. Yet at the same time we ought to have clear knowledge of the injuries those might cause deadly passing of the rider. Thus the head protector is must for rider security. From that point onward, the comfort of the rider all through the journey is additionally critical worry for the helmet business to increase best market for their own item. So to meet the fundamental worries of the rider, it's most vital to build up the best comfort with a light weight, high quality, and high effect safe and better feel for the rider.

The present work manages the geometrical improvement of the current head protector utilizing CAD programming apparatus and after that the basic investigation of the current model utilizing ANSYS workbench, straight examination, the outcomes, distortion, stress, and strain plots was been contrasted and entrenched outcomes. At that point the elective model with different mixes had been produced and broke down for the basic investigation and the outcomes had been contrasted and the current head protector.

Toward the finish of the protective helmet with predominant quality, attributes with low material cost will be accomplished through the exploration. Keywords: H elmet, deformation, stress, strain, structural analysis. Abstract: Women are an equal soul of men by comprises men in her name itself but really they are treated equal among men.

There is a broad gap in between past and present centuries. Women are treated poorly on past centuries by getting huge works, asking more dowries and even killing female infant but in present century these has been reduced and crimes are increased more in numbers against women like abducted, murdered, raped and harassed in various ways. Although there are n numbers of tracking devices still crimes against women are in an increasing rate. These crimes have to be reduced in an effective ways of implementing versatile tracking system by combining various technologies into a single integrated unit.

Abstract: The popularity of Lightweight Concrete LWC is due to its least density factor and high insulation capability. Use of LWC can diminish the null load of structural members significantly. The rise in the price of civil construction materials, depletionand environmental exploitation has set an alarm for an alternative material.

In this study, the normal coarse particulates CA was replaced by coconut shell CS. Since specific gravity of both the materials is different the replacement was done on the volume basis. The properties of coconut shell material which is available in surplus amount and concrete ingredients were studied. Coconut Shell used in concrete has high effectuality on account of its flat surface on one side. In this paper, a study has been made on the flexural performance of lightweight concrete slabs.

Four point loading test was performed on slabs and parameters such as ultimate moment capacity, ductility factor, energy absorption, stiffness, and cracking pattern were observed. Abstract: Today the two disturbing conditions in front of the engineers worldwide are to decrease the utilization of conventional fuels and to downscale the ever rising environmental pollution.

The performance characteristics and emission characteristics of single cylinder water cooled diesel engine with the effect of piston crown geometries such as HCC Hemispherical combustion chamber and RCC Re-entrant combustion chamber are evaluated. The tests are conducted with diesel and Rice Bran Methyl Ester and Diesel blends as fuels with different loading conditions. Rice bran methyl ester is prepared by using transesterification process.

Without modifying the compression ratio and cylindrical volume of the engine the baseline hemispherical type piston is replaced with Re-entrant type piston. From the investigations it is observed that the brake point thermal efficiency is increased and specific fuel consumption proportion is decreased for re-entrant combustion chamber. Further thenormal pollutants emissions are reduced.

But slightly increase in nitrogen oxides is detected compared to base fuel for re-entrant combustion. Keywords: Diesel engine, biodiesel, re-entrant combustion chamber, Hemispherical Combustion chamber and Rice bran methyl ester. Abstract: To decay the pressure oscillation in the flow above an open crater, a passive control method, namely introduction of a dimpled non-even surface, is attempted. This paper presents the numerical analysis of the above system, which was undertaken to govern the effectuality of the said control modem. This work focuses on an open fissure with the length-to-depth ratio in proportions of 1: 2.

To check the oscillation persuaded in the flow, a textured non-even surface is fitted at the upstream of the crater. The even and dimpled non even cases are compared for the flow instability and noise around fissure. Large eddy simulation coupled with acoustic model is utilized as a tool for this. The results obtained for even cases were compared with available experimental and computation data.

On the basis of flow visualizations, it can be said that introduction of dimpled non-even surface upstream was significantly effective in suppressing the oscillations in fissure flow. Based on the comparison of flow filed structure in the even and dimpled non-even cases, the control mechanism of void oscillation technique is evaluated. Keywords: fissure flow oscillation, passive control, numerical simulation, dimpled non-even surface.

Abstract: Wireless Sensor Networks are used for wide variety of applications ranging from monitoring of weather, enemy vehicles across the borders. The critical activities require the nodes to be used for a longer period of time and whenever nodes lose their energy network must be able to recover or replace nodes over a period of time. Before transmitting the data multiple routes are found and then a route is chosen which has lowest distance or end to end delay and high residual energy which affect the life time ratio in the network.

The main cause for life time expiring at the faster rate is improper selection of forward node and second important cause occurs if all neighbours are dead. The proposed method performs the Classification of neighbours into super healthy and non healthy nodes and picks the best node which has the highest residual energy. The proposed method also performs the relocation of forward node and recovery of dead nodes to improve network lifetime.

Abstract: Turning accuracy and high productivity rates have become the key determinants and both accuracy and surface quality plays vital role. In this publication a diversified multivariate model of an orthogonal turning operation has been formulated considering a series of turning experiments. Using the obtained experimental data, the cutting dynamics has been modeled with radial basis function neural network for different work piece materials.

In par with basic cutting parameters, tool overhang and tool wear were selected as inputs and static cutting edge forces, average roughness values and critical chatter length on work piece were presented as outputs. For four work materials considered in experiments, four neural networks were trained. Using these neural network models, optimum cutting parameters such as speed, depth of cut, feed and tool-overhang lengths are projected by minimizing total cutting edge force with the help of genetic algorithms.

Keywords: cutting parameters, design parameters, neural network and genetic algorithm. Anand Singh, Dr. Sasaki and T. Akagi, Y. Kanazawa, K. Fujita And A. Areerak and K-N. Akagi, E. Watanabe, M. Saravanan, S. References: C. Liu and P. Garg, P. Bhartia, I. Bahl, and A. Kan and R. Abdel Fattah Sheta and Samir F. Davor, R. Deshmukh, G. IEEE, pp. IEEE, Vol. Dheepak, Dr. Amit A. Rakholiya1 and Namrata V. Sindhuja, Dr. Beni Steena, P. Indira, M. References: Iftikhar, A. Muhammed, C. Fernando, Y. Hong, and E. John, P.

Aerodynamic Noise - An Introduction for Physicists and Engineers | Tarit Bose | Springer

Parkash, A. Sharma, S Singh H. Carruthers and J. Rajinikanth, S. Abraham Lincon. References: Bing, L. Pengqiang, Xiong,Y. Xiaochen, Lu. Borja, A. Zhi, H. Yushi, C. Pedram, G. Kun, T. Hemalatha, S. Sivajothi Kavitha, D. Self Regulated Deodorizing Lavatory System. References: Arun kumar, A. Adithya Bharadwaj, R. Balasubramanian, P. Karthick, S. Sakthi kannan, G. Cleophas D. Tofayel Ahmed, Md. Dhanashree Salunke, Sheetal Bhingardive, S. Anupriya, T. References: S. Zandi, M. Javidan, G. Dumont, and R. Yaffe et al.

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Abhinav Viswanaath. References: Alexandre B. Nastran , R. Cajhen, M. Seliger, and P. Papic, I. Ninth Int. Harmonics Quality Power, Orlando, , pp. Kumbha, V. Modern Eng. Topologies for Passive Filter ApplicationsKhadkikar. Power Electron. Mangaraj, A. Buso, S.

Fasolo, L. Malesani, P. Geetha, S. Modelling and Emulation of Solar Powered Vehicle. Dufour, V. Lapointe, J. Belanger, and S. IEEE Int. Abourida and J. Bordas, C. Dufour, and O. Jeddi, L. Hatziargyriou et. Villalva, 1 R. Gazoli, and E. Tian, F. Mancilla-David, K. Ellis, E. Muljadi, and P.

Jenkins, A cell-to-module-to-array detailed model for photovoltaic panels, Solar Energy, vol. Kamath and J. Rama Sekhara Reddy, M. Vijaya Kumar, M. References: Li; Z. Xu; and K. Naidu; B. Ju, F.


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