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Search Results: 1 - 10 of 8353 matches for " Seema Sharma "
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A Study of Environmental Awareness of Student Teachers and Teachers in Relation of Their Emotional Intelligence  [PDF]
Seema Sharma
Open Journal of Social Sciences (JSS) , 2014, DOI: 10.4236/jss.2014.28021
Abstract: The study aimed at finding out the relationship between environmental awareness and emotional intelligence of student teachers and teachers. The sample of the study consisted of 200 student teachers (100 male and 100 female) and also of 100 teachers (50 male and 50 female). The sample was taken from 15 self-financed B.Ed. colleges of Ghaziabad District of CCS University, Meerut (UP). Environmental awareness measure scale by Dr. P. K. Jha and emotional intelligence inventory by Dr. S. K. Mangal and Mrs. Shubhra Mangal was used for assessing the environmental awareness and emotional intelligence of student teachers and teachers. Data was analyzed by using mean, SD, t-test and by Pearson Product Moment Correlation Technique. The results showed that there was no significant difference between male and female student teachers and teachers regarding environmental awareness and emotional intelligence. The results also showed that the environmental awareness of male and female student teachers was also found to be slightly positively but not significantly correlated with emotional intelligence. The environmental awareness of male teachers was found to be moderately, positively and significantly correlated with emotional intelligence. On the other hand the environmental awareness of female teachers was found to be slightly positively but not significantly correlated with emotional intelligence.
Influence of Sintering Temperature on Densification, Structure and Microstructure of Li and Sb Co-Modified (K,Na)NbO3-Based Ceramics  [PDF]
Rashmi Rani, Seema Sharma
Materials Sciences and Applications (MSA) , 2011, DOI: 10.4236/msa.2011.210191
Abstract: Polycrystalline samples of Lead free (K0.5Na0.5)1-x(Li)x(Sb)x(Nb)1-xO3 ceramics with nominal compositions (x = 0.040 to 0.060) have been prepared by high temperature solid state reaction technique. X-ray diffraction (XRD) pattern shows that the crystal structure transforms from orthorhombic to tetragonal as Li and Sb content increases. Normal sintering process yield compounds with density ~98.2% of the theoretical value. Densification of the Li and Sb co-doped KNN ceramics might be explained by the liquid-phase sintering. This may be attributed to the low melting temperature of Li compounds that appears to promote the formation of a liquid phase during sintering.
Green Synthesis of Silver Nanoparticles Using Extracts of Ananas comosus  [PDF]
Naheed Ahmad, Seema Sharma
Green and Sustainable Chemistry (GSC) , 2012, DOI: 10.4236/gsc.2012.24020
Abstract: The biosynthesis of nanoparticles has been proposed as a cost effective and environmental friendly alternative to chemical and physical methods. Plant mediated synthesis of nanoparticles is a green chemistry approach that intercom nects nanotechnology and plant biotechnology. In the present study, synthesis of silver nanoparticles (AgNPs) or (Green-Silver) has been demonstrated using extracts of Ananas comosus reducing aqueous silver nitrate. The AgNPs were characterized by Ultraviolet-Visible (UV-vis) Spectrometer, Energy Dispersive X-ray Analysis (EDAX), Selected Area Diffraction Pattern (SAED) and High Resolution Transmission Electron Microscopy (HRTEM). TEM micrographs showed spherical particles with an average size of 12 nm. The XRD pattern showed the characteristic Bragg peaks of (111), (200), (220) and (311) facets of the face center cubic (fcc) silver nanoparticles and confirmed that these nanoparticles are crystalline in nature. The different types of antioxidants presented in the pineapple juice synergistically reduce the Ag metal ions, as each antioxidant is unique in terms of its structure and antioxidant function. The re- action process was simple for formation of silver nanoparticles and AgNPs presented in the aqueous medium were quite stable, even up to 4 months of incubation. This work proved the capability of using biomaterial towards the synthesis of silver nanoparticle, by adopting the principles of green chemistry.
A New Record on Flowering in Harar (Terminalia chebula Retz.) Seedling  [PDF]
Kamal Sharma, Sanjeev Thakur, Seema Sharma, Som Dutt Sharma
American Journal of Plant Sciences (AJPS) , 2012, DOI: 10.4236/ajps.2012.35083
Abstract: Harar (Terminalia chebula), a large deciduous tree belongs to family combretaceae. It grows naturally in greater part of India up to 1500 m elevation. Due to several alkaloids present in fruit, it is used as laxative, purgative and astringent for curing a number of ailments. Keeping in view its medicinal and tanning properties, the authors have been working for the last two decades on various aspects like propagation and development of promising strains of harar. Grafting/budding techniques have been standardized to produce true to type precocious plants which bear flower in two to three years. However, flowering has been observed in three months old seedling, which can be ascribed to biochemical and/or cellular changes. Early flowering is a rare incidence in tree seedlings which otherwise could be very useful for breeding and early evaluation of fruit species.
Pulsatile MHD Flow in an Inclined Catheterized Stenosed Artery with Slip on the Wall  [PDF]
Mukesh Kumar Sharma, Kuldip Singh, Seema Bansal
Journal of Biomedical Science and Engineering (JBiSE) , 2014, DOI: 10.4236/jbise.2014.74023
Abstract: Catheter is commonly used by the surgeons for various reasons in the treatment of a patient suffering with cardiovascular diseases. Catheterization increases the mean flow resistance in the arterial blood flow and many other complications are associated with the presence of catheter in the artery. Effects of catheter in stenosed artery can be estimated non-invasively by means of hemo-dynamic indicator-WSS, WSSG, volume flow rate and impedance. The effect of slip at the arterial wall, inclination of the artery and magnetic field on the hemodynamic indicators and flow profiles are computed, presented and discussed through graphs.
Effect of Foundation and Non-Homogeneity on the Vibrations of Polar Orthotropic Parabolically Tapered Circular Plates  [PDF]
Shivani Srivastava, Seema Sharma, Roshan Lal
Applied Mathematics (AM) , 2015, DOI: 10.4236/am.2015.69139
Abstract: The effect of Pasternak foundation and non-homogenity on the axisymmetric vibrations of polar orthotropic parabolically varying tapered circular plates has been analyzed on the basis of classical plate theory. Ritz method has been used to find the numerical solution of the specified problem. The efficiency of the Ritz method depends on the choice of basis function based upon deflection of polar orthotropic plates. The effects of different plate parameters viz. elastic foundation, non-homogeneity, taper parameter and that of orthotropy on fundamental, second and third mode of vibration have been studied for clamped and simply-supported boundary conditions. Mode shapes for specified plates have been drawn for both the boundary conditions. Convergence and comparison studies have been carried out for specified plates.
REDUCING PAPR OF OFDM BASED WIRELESS SYSTEMS USING COMPANDING WITH CONVOLUTIONAL CODES
Pawan Sharma,Seema Verma
International Journal of Distributed and Parallel Systems , 2011,
Abstract: OFDM is a promising broadband technique. However, the implementation disadvantage of OFDM isPeak-to-Average Power Ratio (PAPR) which outweighs all the potential benefits of OFDM. In this paper,a new scheme will be introduced, that combines selective mapping and companding technique to reducePAPR. However, companding technique is a distortion technique but by using convolutional codes withcompanding also improves BER performance of the OFDM system. It also removes the disadvantage ofSLM technique of extra side information i.e. this technique does not require any side information unlikein conventional SLM. By considering the example of OFDM with BPSK modulation, it is shown insimulation results that the proposed scheme performs well in both reducing PAPR and improving BERperformance without the need of any side information. It has been calculated that PAPR of OFDM signalcan be reduced by 5dB over the original system with the proposed scheme
Histoplasma capsulatum in the peripheral-blood smear in a patient with AIDS
Sharma Seema,Gupta Pronati
Indian Journal of Pathology and Microbiology , 2011,
Abstract:
Lymphoid aggregates in bone marrow biopsies in patients with hypereosinophilia
Sharma Seema,Dhameja Neeraj
Indian Journal of Pathology and Microbiology , 2008,
Abstract:
Performance Analysis of Peak-to-Average Power Ratio Reduction Techniques for Wireless Communication Using OFDM Signals
Pawan Sharma,Seema Verma
International Journal of Computer Science Issues , 2010,
Abstract: Orthogonal Frequency Division Multiplexing (OFDM) has been currently under intense research for broadband wireless transmission due to its robustness against multipath fading. However OFDM signals have a problem with high Peak-to-Average power ratio (PAPR) and thus, a power amplifier must be carefully manufactured to have a linear input-output characteristic or to have a large input power back-off. In this paper, some of the important PAPR reduction techniques which have been compared based on computational complexity, bandwidth expansion, spectral spillage and performance.
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