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XRD and DTA analysis of developed agglomerated fluxes for submerged arc welding

Rivista Italiana della Saldatura 2014年第1期66卷 7-15页

作者： Kumar, Ajay Singh, Hari Maheshwari, Sachin Department of Mechanical Engineering Noida Institute of Engineering and Technology Greater Noida 201306 India Department of Mechanical Engineering National Institute of Technology Kurukshetra Haryana 136119 India Division of MPAE Netaji Subhas Institute of Technology New Delhi 110078 India

A unique study of structural and chemical analysis of crys-talline phases in developed agglomerated fluxes was carried out. Thirty-two fluxes were developed by using a mixture of oxides, halides, carbonates, silicates, and ferroalloys for submerged arc welding. The present paper focuses on only ten (out of thirty-two) fluxes which were analyzed by X-ray diffraction (XRD) to know the different types of oxides formed and changed in oxidation number of metallic centers after sintering process at around 850 °C. To know the effect of temperature over phase transformation and melting of different compounds, differential thermal analysis (DTA) was carried out from 1000 to 1400 °C. This study aims to know the quantity of ions present (percentage) and melting behavior of developed agglomerated fluxes for submerged arc welding process.

关键词： Sintering

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APPROXIMATION BY COMPLEX SZSZ-DURRMEYER OPERATORS IN COMPACT DISKS

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Acta Mathematica Scientia 2014年第4期34卷 1157-1165页

作者： Sorin G.GAL Vijay GUPTA Department of Mathematics and Computer Science University of Oradea Str. Universitatii No. 1410087 OradeaRomania Department of Mathematics Netaji Subhas Institute of Technology Sector 3 DwarkaNew Delhi-110078India

In the present paper, we deal with the complex Szasz-Durrmeyer operators and study Voronovskaja type results with quantitative estimates for these operators attached to analytic functions of exponential growth on comp... 详细信息

关键词： complex Szasz-Durrmeyer operators Voronovksaja type result exact order of approximation in compact disks simultaneous approximation

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Dual band notched UWB monopole antenna using embedded omega slot and fractal shaped ground plane

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Progress In Electromagnetics Research C 2014年 53卷 177-186页

作者： Biswas, Balaka Poddar, Dipak R. Ghatak, Rowdra Karmakar, Anirban ETCE Department Jadavpur University Jadavpur Kolkata India Microwave and Antenna Research Laboratory ECE Department National Institute of Technology Durgapur India ECE Department Netaji Subhas Engineering College Kolkata India

This paper presents the development of an Ultra Wide Band (UWB) monopole antenna with dual band notch characteristics. Modified crown-square shaped fractal slots in the ground-plane are implemented to enhance the impedance bandwidth to around 58% as compared to conventional square monopole antenna without slots. Impedance bandwidth of the proposed antenna is approximately 114% with Voltage standing wave ratio (VSWR) © Copyright 2010 EMW Publishing. All Rights Reserved.

关键词： Fractals

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EEG based cognitive workload classification during NASA MATB-II multitasking

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International Journal of Cognitive Research in Science, engineering and Education 2015年第1期3卷 35-42页

作者： Chandra, Sushil Verma, Kundan Lal Sharma, Greeshma Mittal, Alok Jha, Devendra Bio Medical Engineering Department Institute of Nuclear Medicine and Allied Sciences DRDO Delhi India Department of Electronics DDU Gorakhpur University Gorakhpur Uttar Pradesh India Instrumentaion and Control Engineering Department Netaji Subhas Institute of Technology Delhi India Scientific Analysis Group DRDO Delhi India

The objective of this experiment was to determine the best possible input EEG feature for classification of the workload while designing load balancing logic for an automated operator. The input features compared in this study consisted of spectral features of Electroencephalography, objective scoring and subjective scoring. Method utilizes to identify best EEG feature as an input in Neural Network Classifiers for workload classification, to identify channels which could provide classification with the highest accuracy and for identification of EEG feature which could give discrimination among workload level without adding any classifiers. The result had shown Engagement Index is the best feature for neural network classification. © 2015, Association for the Development of Science, engineering and Education. All rights reserved.

关键词： Cognitive workload Discrete wavelet transform EEG spectral feature Neural network

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A novel probabilistic approach of colored object detection and design of a gesture based real-time mouse tracking along with virtual teaching intended for color-blind people

A novel probabilistic approach of colored object detection a...

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International Conference on Signal Processing and Integrated Networks (SPIN)

作者： Abhinaba Bhattacharjee Indrani Jana Ankana Das Debasish Kundu Sudipta Ghosh Sauvik Das Gupta Department of Electronics and Communication Engineering Adamas Institute of Technology Kolkata Netaji Subhash Engineering College Kolkata West Bengal University of Technology Kolkata West Bengal India Bengal Institute of Technology and Management Birbhum West Bengal India School of Electrical and Computer Engineering Oklahoma State University Stillwater OK USA

The study of logic led directly to the invention of the programmable digital electronic computer. The theory of computation inspired us to consider the possibility of building an electronically intelligent brain leading to artificial intelligence. We have seen the 3rd generation smart phones and laptops with LED display having both resistive and capacitive touch technology. This paper presents a conceptual approach of controlling mouse movements, writing texts and sketching colored - images by simply making real time gestures in air with colored objects or colored finger caps without making any physical surface contact unlike the (Touch technology). With the help of the artificial Digital Vision we integrate Image Processing along with Gesture Recognition to generate a Graphical User Interface in order to acquire physical aerial gestures and plot 2-Dimensional curves onto the computer screen using a real time camera (computer webcam). The graphics or texts so generated on screen can be projected to a wall using a projector in a classroom which especially assists the `lecturers with paralysed legs-who cannot write on a blackboard' or `lecturers suffering from color - blindness or amblyopia'.

关键词： Image color analysis Mice Webcams Mathematical model Color computers Real-time systems

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Enhanced AODV protocol for defence against JellyFish Attack on MANETs

Enhanced AODV protocol for defence against JellyFish Attack ...

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International Conference on Advances in Computing, Communications and Informatics (ICACCI)

作者： Sakshi Garg Satish Chand Department of Computer Engineering Netaji Subhas Institute of Technology Delhi India

This paper discusses an enhanced AODV routing protocol as a method for defence against JellyFish (JF) Delay Variance attack in Mobile Ad-hoc networks. The JF delay variance attack introduces delay in forwarding the packets at network layer. It uses MAC addresses to calculate the route for forwarding the packets to destination. The attacker node creates delay in forwarding the packets, which increases end-to-end delay and decreases throughput of the network. Thus the performance of network decreases drastically. We propose an enhancement in AODV protocol so as to detect the malicious nodes in a network and to remove them from the routing path without their knowledge.

关键词： Abstracts Routing protocols Mobile ad hoc networks Indexes Throughput Delays Mobile communication

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Mining regular pattern in edge labeled dynamic graph

Mining regular pattern in edge labeled dynamic graph

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International Conference on Industrial and Information Systems, ICIIS

作者： Anand Gupta Hardeo Kumar Thakur Nitish Gundherva Netaji Subhas Institute of Technology New Delhi Delhi IN Division of Computer Engineering Netaji Subhas Institute of Technology Delhi India

Static Graphs consist of a fixed sequence of nodes and edges which does not change over time, hence lack in providing the information regarding evolution of the network. In contrast, Dynamic Graphs to a greater extent relate to real-life events and so provide complete information about the network evolution. That is why many researchers [1, 2, 3, 5, 6, 7, 8, 9 and 10] have developed interest in mining of Dynamic Graphs. We feel, that the topic can be further sub-divided structurally into four major categories, which are mining of Labeled, Edge Unlabeled, Directed and Undirected Dynamic Graphs. However, the main focus of research till now is on the mining of Edge Unlabeled Dynamic Graphs. But the limitation is that it does not provide the complete insights of graphs where edge strengths i.e. weights are also changing with time. For example in case of Coauthor network mining in Unlabeled Dynamic Graphs gives information only about the occurrence of relation whereas that in Labeled Dynamic Graphs provides more detailed information like the number of paper published jointly at different instants of time. To address this problem, the present paper proposes a novel method to find out Weighted Regular Patterns in Edge Labeled Dynamic Graphs. The proposed method consists of creating a summary graph to find weight occurrence sequence of edges enabling to determine weighted regular patterns. The method is applied to real world dataset, PACS networks, to ensure its practical feasibility and to understand how Weighted Dynamic Graphs behave regularly over time.

关键词： Picture archiving and communication systems Lifting equipment Complexity theory Data mining Market research computers Abstracts

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Evolution of regular directed patterns in dynamic social networks

Evolution of regular directed patterns in dynamic social net...

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International Conference on Advances in Computing, Communications and Informatics (ICACCI)

作者： Anand Gupta Hardeo Kumar Thakur Payal Goel Division of Computer Engineering Netaji Subhas Institute of Technology Delhi India Netaji Subhas Institute of Technology New Delhi Delhi IN

ISBN: (纸本)9781479930814

Existing Dynamic Graph mining algorithms focus typically on finding patterns in undirected, unweighted and weighted dynamic networks ignoring the fact that some of them could be directed also. In this paper, we focus on finding regular evolution patterns in edges, outdegree and indegree of all the nodes, featuring consecutively at fixed time intervals during the growth of an unweighted and directed dynamic graph. Such regular patterns will help in finding the characteristics (such as popularity, inactiveness) of the nodes. A methodology of occurrence rule is proposed in order to determine regular evolution patterns, which are considered to be regular if they follow the same occurrence rule. The methodology is also used to find the patterns in the outdegree and indegree of all the nodes. These patterns are used to describe exhaustively the neighbourhood properties of dynamic graphs as in the social networks. To ensure its practical feasibility, the method has been applied to real world dataset on Facebook-like Forum network, and the results have shown that 37.6% of the edges are directed regular edges, and 59% of the total users, not having their indegree patterns are unpopular users.

关键词： Heuristic algorithms Facebook Informatics Companies Postal services Finite element analysis

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Analytical study of load scheduling algorithms in cloud computing

Analytical study of load scheduling algorithms in cloud comp...

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International Conference on Parallel Distributed and Grid Computing (PDGC)

作者： Divya Chaudhary Bijendra Kumar Department of Computer Engineering Netaji Subhas Institute of Technology New Delhi India

Scheduling enables the cloud in balancing the large amount of load present in the system for faster computation. It plays a vital and significant part in the execution of the load in the various heterogeneous systems. The scheduling portrays a selection of resources for the tasks for better resource utilization. This paper differentiates the various load scheduling algorithms applied in the various heterogeneous systems in detail. It plays a key role in larger resource utilization and handling. This paper defines the basic cloud computing fundamentals and the concept of load balancing i.e., scheduling of load in cloud. The applied load scheduling algorithms are elaborated and surveyed extensively.

关键词： Resource management Scheduling algorithms Biological cells Cloud computing Genetic algorithms Load management

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Analysis of information diffusion in dynamic information networks

Analysis of information diffusion in dynamic information net...

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International Conference on Contemporary Computing and Informatics (IC3I)

作者： Geetika Sarna Rhythm Walia MPS Bhatia Computer Engineering Department Netaji Subhas Institute of Technology New Delhi India

Dynamic information network is a social network in which data and topology continuously keeps on changing. Number of users are approaching and departing the social networks and share information. Information diffusion plays a key role in this information sharing. So it is very important to understand the process of information diffusion in this type of network. It also helps to analyze the effective design of advertising campaigns, viral marketing and recommender systems. In this paper two major models of information diffusion i.e. Independent Cascade Model and Linear Threshold Model are studied and implemented with respect of dynamic information network While these methods gave promising results on static networks, but because of their linear and scalable properties, they are insufficient to model dynamic information networks.

关键词： Network topology Computational modeling Data models Twitter Topology Image color analysis

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