Informatics Publishing Limited

Arun Kumar ¹, Suman ², Renu ²

Affiliations
1 Lecturer, ECE, Eiilm University, Jorethang, Sikkim
2 Perusing M.Tech., HCTM College, Hrayana

Abstract

By examining the two papers on 4G and 3G, namely wireless networks: opportunities and challenges by Hassan Gobjuka, Verizon, 919 hidden bridge irving, Tx 75038 and wireless network: opportunities and challenges emphasis us to throw light on the differences between the two networks. This task is being done in order to list out the drawbacks and merits of these two evolutions of the networks and further to implement R&D research to bring out their sparks in this modern era. The differences are done on the following Index terms: Background difference, definitions, technologies progress, speed/ rate of transmission, switching technologies used, network, band width, design specification, QoS, service and billing, features and capabilities.

Keywords

RAN, Sonet, Utran, Flash OFDM, Core Network, SGSN

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Renu ¹, Sachin ²

Affiliations
1 Gupta Hospital, Hisar, Haryana, IN
2 University of Rajasthan, Jaipur, IN

Abstract

The scenario study has been designed to compare the degree of organizational role stress, and personality among public and private sector telecoms employees. The sample was composed of 180 telecom employees in which 90 employees were from private sector telecom and the rest of 90 were from public sector telecom. Inter-correlation and t-test has been computed for the simplification of the data. The results indicate that private sectors telecom employees have faced more role ambiguity, role stress, role overload and role stagnation in comparison to public sectors.

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Renu ¹, Sadhu Ram ²

Affiliations
1 Department of Mathematics, Shanti Niketan College of Engineering, Ladwa, Hisar, IN
2 Department of Primary Education, Government Primary School, Jalmana, karnal, IN

Abstract

In the present paper, the surface wave propagation at the interface between two orthotropic elastic solid is studied. The governing equations are solved to obtain the general solution in yz-plane. The appropriate boundary conditions at an interface between two orthotropic elastic half spaces are satisfied by appropriate particular solutions to obtain the frequency equation of the surface wave in the medium. Some special cases are also discussed.

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Jyoti Arora ¹, Renu ²

Affiliations
1 Research Scholar, Department of Mathematics, Singhania University, Rajasthan, IN
2 Research Scholar, Department of Mathematics, Singhania University, Rajasthan

Abstract

The governing equations of an initially stressed transversely isotropic dissipative solid half-space are solved for surface wave solutions. The appropriate solutions in the half-space are applied to the required boundary conditions at the free surface of the half-space. The frequency equation of the Rayleigh wave is derived. Frequency equation of the Rayleigh wave is also obtained in some limiting cases.

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Renu ¹, Sadhu Ram ¹, Jyoti Arora ¹

Affiliations
1 Research Scholar, Department of Mathematics, Singhania University, Pacheri Bari, Jhunjhunu, Rajasthan, IN

Abstract

These papers describe the various approaches and suggestions which may be proved heipful in rearrangement of available resources. It also uncovers the different opportunity not only for best utilization of resources for the surface waves but also for the establishment of new more efficient information about seismology. In the present paper, some problem on surface wave propagation is studied in an anisotropic media.

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Renu ¹, Sadhu Ram ¹

Affiliations
1 Research Scholar, Department of Mathematics, Singhania University, Pacheri Bari, Jhunjhunu, Rajasthan, IN

Abstract

The algebraic and transcendental equations are solved to obtain the ischolar_main of an equation with the help of different computational techniques. The appropriate solution of the equation to the desired degree of accuracy is obtained using successive approximations. A particular model is chosen for numerical computation of ischolar_main of the equation. The numerical values of this approximated ischolar_main are shown graphically against the number of approximation for the different computational techniques. The impact of the different computational techniques on the ischolar_main of equation is observed significantly.

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Rachna Bhateria ¹, Renu ¹, Snehlata ¹

Affiliations
1 Department of Environmental Sciences, Maharshi Dayanand University, Rohtak-124 001, Haryana, IN

Abstract

Invasive plant species have the potential to damage crops, industries, environment and public health, hence scientists, academicians, leaders of industry and land managers are realizing that invasive species are serious environmental threats for the 21st century. Parthenium weed is an annual herb in the family Asteraceae which is native to northern Mexico and southern USA. It is spreading across the length and breadth of our country. It gets easily established in almost all the places such as wasteland, roadsides, forests, railway tracks, crop fields, etc. Its high germination ability throughout the year, an enormous seed bank, rapid spread, colonization and extreme adaptability in a wide range of habitats is responsible for its wide spread occurrence. Parthenium hysterophorus L. was reported to be one of the seven most dangerous weeds of the world. It has achieved a major weed status in India and Australia within a relatively short period due to its fast multiplication, rapid growth and its ability to compete with other native flora. There are many ways like mechanical, chemical, cultural and biological to control it, but it cannot be controlled by using a single approach. Integrated approach should be the better way to manage this noxious weed. The aim of this review is to provide general information about the physiology, distribution, ill effects and management of Parthenium.

Keywords

Parthenium hysterophorus, Invasive Plant Species, Weed Asteraceae.

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Dinesh Kumar ¹, Renu ¹, Mradula Mittal ¹

Affiliations
1 Department of Chemistry, D.A.V. (P.G.) College, Muzaffarnagar (U.P.), IN

Abstract

Complexes of Ni (II) of general composition [ML₂X₂], [ML₂X]X were prepared with thiosemcarbazones (L¹, L², L³ & L⁴). These complexes were characterized by elemental analysis, molar conductances measurements, Magnetic moments IR, electronic spectra, and EPR spectral studies. All are the nonelectrolyte in nature therefor these complexes may be formulated [M(L)₂X₂]. All the complexes are of high-spin and show octahedral jeometry.

Keywords

Acetoacetic Ester Thiosemicarbazone, Isopropyl Ester Thiosemicarbazone, 6-Methyl Pyran 2-One 4 Hydroxy 3 Dicarboxylic Acid Ester Thiosemicarbazone, Biological Activity.

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Renu ¹, Dinesh Kumar ¹, Mradula Mittal ¹

Affiliations
1 Department of Chemistry, D.A.V. (P.G.) College, Muzaffarnagar (U.P.), IN

Abstract

Complexes of cobalt (II) of general composition [ML₂X₂], [ML₂X]X were prepared with semcarbazones (L¹, L², L³ and L⁴). These complexes were characterized by elemental analysis, molar conductances measurements, Magnetic moments IR, electronic spectra, and EPR spectral studies. All are the nonelectrolyte in nature therefor these complexes may formulated [M(L)₂X₂]. All the complexes are of high-spin and show octahedral geometry.

Keywords

Acetoacetic Ester Semicarbazone, Isopropyl Ester Semicarbazone, 6-Methyl Pyran-2-One-4 Hydroxy 3 Diacarboxylic Acid Ester Semicarbazone, Biological Activity.

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A. K. Meena ¹, M. M. Rao ¹, R. P. Meena ², P. Panda ¹, Renu ¹

Affiliations
1 National Institute of Ayurvedic Pharmaceutical Research, Moti Bagh Road, Patiala-147001, IN
2 Regional Research Institute of Unani Medicine, Royapuram, Chennai, Tamil Nadu, IN

Abstract

The scientific basis for the statement that plants and their active constituents play an important role in the prevention diseases is continuously advancing. In fact the origin of many therapeutic substances from the genus Wedelia. It is an interesting source of potential bioactive molecules, as iridoids compounds, flavonoids, diterpenoids derivatives, phytosteroids, with antioxidant, anti-inflammatory, antimicrobial, Hepatoprotective activity, analgesic and antihistamine, Anti-implantation, antiasthmatic activities and anticancer activity. This work reviews the pharmacological evidence of extracts of plants from the genus Wedelia, giving an overview of the most studied biological effects and the known phytochemical composition. Although more studies are necessary, Wedelia exhibits proven potential to become of important pharmacological interest.

Keywords

Genus Wedelia, Pharmacological Activity, Phytochemistry, Anti-Inflammatory, Medicinal Plants.

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Manander Bangar ¹, Birinchi Bora ¹, Renu ¹, Rashmi Singh ¹, Supriya Rai ¹, O. S. Sastry ¹

Affiliations
1 National Institute of Solar Energy, Gurgaon, Gwalpahari, IN

Abstract

Concentrated photovoltaic (CPV) cells have always shown higher efficiencies (∼37%) compared to single junction high efficiency Maxeon cells(23%), HIT cells(22%) and the thin film CdTe (13%) cells/modules. However, outdoor field performance of these technologies does not reflect the similar performance, as shown under standard conditions. The techno-economic considerations for a specific site it is important to evaluate a technology as per field performance indicators such as annual yields (Yi) and Performance Ratio(PR). In this paper the performance of a multi junction solar cells based on III-V compound-materials (GaInP/GaInAs/Ge) concentrated photovoltaic (CPV) system with very high concentration ratio of 500X has been evaluated. The outdoor performance of CPV has been compared with the other high efficiency flat plate solar photovoltaic technologies under similar condition and same period of time. A radiation analysis on Direct Normal Incidence (DNI) has been also carried out throughout the year of 2011 for the test site to find out the suitability of CPV. It has been found that the CPV system showed lowest PR compared to the technologies.

Keywords

CPV, Flat Module, GaInP/GaInAs/Ge, PR, DNI.

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Renu ¹, Birinchi Bora ¹, Manander Bangar ¹, O. S. Sastry ¹, Supriya ¹, Rashmi Singh ¹

Affiliations
1 National Institute of Solar Energy, Village Gwalphari, Gurgaon-Faridabad Road, Gurgaon-122003, IN

Abstract

Ever since beginning of Jawaharlal Nehru National Solar Mission (JNNSM) in India, a boom is observed in the Solar Photovoltaic (SPV) applications. Usages of SPV water pumping systems for drinking water and irrigation purpose has increased. National Institute of Solar Energy (NISE) has established test facilities for evaluation of solar water pumping systems, and also studied various different SPV based water pumps of different capacities, types, and applications. It has been observed that the most of the pumps underperform due to poor design of the system, low efficiency of components and mismatch among components. It is observed that these pumps could have performed more efficiently if technical barrier discussed above are solved. This paper describes the major aspects needed to be incorporated in designing of SPV pumping systems. A specific case of assessment of two submersible pumps of same capacity and same type but with different array capacities has been presented. From experiment it found out that to maximise the water output of a solar water pumping system at a particular site, the incident radiation profile of that particular site should be studied& analysed and PV array capacity should be fixed according to a particular range of irradiance radiation where maximum annual irradiation has fallen.

Keywords

SPV, JNNSM, PV Array Designing, Submersible Pump, Irradiance.

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Renu ¹, C. K. Singh ¹, Priyanka Beniwal ¹

Affiliations
1 Department of Human Development and Family Studies, COHS, CCSHAU, Hisar, Haryana, IN

Abstract

Family is a shelter for every civil in the world, each family environment influence on their members, family consists many factors such as culture, facility of the family standard of living in family. The growth and development of each person of the family member is dependent on family. Adolescence is a process, rather than a period of achieving the desired growth, attitude, beliefs and methods for effective participation in society as an emerging adult. The way in which adolescents develop and exercise their personal efficacy during this transitional period can play a key role in setting the course their life paths take. The study was conducted with the aim to find the level of family environment of adolescent girls' across residential area. The study was conducted in Hisar district ofHaryana state where two Government Senior Secondary Schools from rural area and two from urban area were selected. From each of the four selected schools of rural and urban area of Hisar, all girls of 14-16 year were included in final sample. The Family Climate Scale (FCS) developed by Shah (2001) was used to assess family environment of adolescent girls. Results indicated that adolescents from urban area get better family environment as compared to adolescents from rural area.

Keywords

Family Environment, Adolescents, Growth, Development.

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Renu ¹, Sanjeev Sharma ¹

Affiliations
1 Rajiv Gandhi Technological University, Bhopal, Madhya Pradesh, IN

Abstract

Very popular MANET works with some functions like data exchange, communication management and routing etc. based on the cooperation. Assess the trustworthiness of the nodes became important since trust is the pillar for cooperation. For secure routing, an efficient trust management mechanism should be implemented in such a way that it could not change the basic nature of network. Mobility, battery limitation and the computational complexities make the trust evaluation a challenging task. To manage the energy during inside attack this paper proposes a trust based energy efficient routing approach, as the extension of our previous work [10] by including various dimensions of trust such as initial trust, behavioral and recommended trust. Most favourite Ad-hoc On-demand Distance Vector (AODV) Routing protocol is used as a representative in the proposed framework. In this paper, a multidimensional trust evaluation security solution is proposed to make minimal changes to the functioning of AODV and achieved an increased level of security and reliability.

Keywords

AODV, Direct trust, Multidimensional Trust, Security, Secure Routing, Trust.

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