YMCA University of Science and Technology

About: YMCA University of Science and Technology is a education organization based out in Faridabad, India. It is known for research contribution in the topics: Web page & Web crawler. The organization has 299 authors who have published 568 publications receiving 4547 citations.

Development of hierarchical magnesium oxide anchored cerium oxide nanocomposites with improved magnetic properties and photocatalytic performance.

Abstract: A facile strategy was introduced for the development of pure MgO and its nanocomposites using different CeO2 contents (3%-7%) to enhance their magnetic properties and photocatalytic performance. Different morphologies (namely nanoflowers and rhombohedral type nanostructures) were obtained using an in situ hydrothermal method at different concentrations of CeO2. X-ray diffraction results revealed that peaks of CeO2 were observed along with peaks of MgO, which confirms the presence of both phases. The crystallite size and particle size were found to increase with changing CeO2 content in the host matrix of MgO. Moreover, the band gap reduces while the magnetic character increases with CeO2 content. The magnetic behaviour of the nanocomposites was elucidated on the basis of oxygen intrinsic defects, which are shown through XPS. EPR measurements were carried out to understand the valence electrons and establish the defects present in the material, which are related to the size of the nanostructures. The degradation of Rose Bengal dye was performed to probe the photocatalytic activity of the MgO@CeO2 nanocomposites. Hence the facile synthesis of these nanostructures conveyed good magnetic properties along with its application towards dye degradation.

High performance 9T adiabatic SRAM and novel stability characterization using pole zero placement

Abstract: Stability of memory cells always considered as a most significant figure for defining the logic data at output terminals. And the value of logic data is influenced due to the dominance of leakage component at deep submicron technology. Stability analysis and leakage issues of new 9T adiabatic static random access memory (SRAM) cells is presented using the technique of pole zero concept. With the help of flow graph characteristic of memory cell is modeled and validated using MATLAB tool. The elementary cell of proposed SRAM resembles behavior of 4T-SRAM consisting of two high load resistors constructed of PMOS and cross-coupled NMOS pair. NMOS switch is used to restrict short circuit current and two gradually rising and falling wave pulses with controlled switching current flow. The simulation is carried out at 180 nm technology and it has been found that the average power dissipation of the proposed SRAM reduces by a factor of 41 with no performance degradation and energy is efficiently recovered using adiabatic and body biasing technique.

Quantitative analyses and evaluation of MANET routing protocols in effect of varying mobility model using Qual-Net simulator

Abstract: Mobile Ad hoc Network (MANET) is the collection of the mobile nodes without the aid of fixed infrastructure. The communication in MANET is therefore completely dependent on the nodes of the network. For the efficient working of the network various routing protocols have been developed. These protocols improve the efficiency of MANET by providing the path between distant nodes through multi-hop links. The performance of the protocols is affected by the various factors. One such factor is the mobility of the nodes. This paper provides the comparative analysis of various routing protocols used in day to day scenario under the effect of various mobility models: viz File, Group and Random Way Point Mobility Model. The results show significant impact of mobility models on performance of routing protocols.

Identification of Attributes of TQM in an Educational Institute: A System Model

Abstract: This paper examines and proposes a list of attributes of Total Quality Management (TQM) in an educational institute, and develops a model for the benefit of researchers and academicians. Even though there have been a large number of papers published related to TQM, none of the papers focused on documenting the attributes of TQM in educational institutes using statistical methods. The paper investigates and lists 42 attributes of TQM in educational institutions. A quantitative study, involving the administration of a survey was conducted. The survey instrument consisted of 42 items and was prepared on the basis of attributes of TQM found during Literature Review. The application of Factor Analysis technique is illustrated for grouping the various attributes into Factors. The results of this study will help in a smoother penetration of TQM programs in educational institutes. The period of study is from 1995-2006. Considering the gamut of publications, TQM implementation has seen a steady growth and appears to be heading towards its maturity level.

A Novel Architecture of Perception Oriented Web Search Engine Based on Decision Theory

Abstract: The number of active web pages increases exponentially. According to the survey, the web has 14.3 trillion active web pages. The problem faced by present search engines is difficulty in returning relevant information. The current search engines do not perform semantic search and are not capable to return results based on user's perception. In this paper a perception based search engine is proposed that returns results as per the user point of view. To achieve semantic searching, a knowledge base is constructed which stores knowledge in the form of predicates. To extract knowledge from knowledge base, decision theory is used that does not restrict to any specific domain.