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Search Results: 1 - 10 of 2905 matches for " Devendra Mishra "
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Influence Of Centrifugal Force On Yarn Characteristics
Anju Katiyar,Madhu Mishra,Devendra Prasad
Golden Research Thoughts , 2012, DOI: 10.9780/22315063
Abstract: “The practical paper is an applied concept of physics in textiles. The Research study shows the effect of yarn tension on yarn characteristics at ring frame stage which is very much dependent on centrifugal force (C.F.).The C.F on ring traveler varies by varying its mass. Due to varying circular motion of ring traveler, tension in yarn is varying in nature and results are correlated with yarn characteristics like fineness, strength, elongation and variation in mass per unit length. In study it is observed that an increase in centrifugal force decreases CSP, tenacity, thick places, thin places & neps& decrease in centrifugal force gives initially increase in yarn quality index then further increase in C.F.gives the trend of decrement in yarn quality index”.
Retrospective Study of Suicide Among Children and Young Adults
Navin Mishra,Devendra Shrestha,Rakesh Babu Poudyal,Pravin Mishra
Journal of Nepal Paediatric Society , 2013, DOI: 10.3126/jnps.v33i2.7512
Abstract: Introduction: The prevalence of suicide has been increasing globally in all age groups. There is dearth of literature on suicide among younger patients from developing country. The objective of this study was to find out the prevalence and cause of suicide as well as to identify the vulnerable groups of children and young adults to suicide. Materials and Methods: This is a retrospective observational study. Data was collected from the Police Head Quarters in Kathmandu and included all completed suicide cases of less than twenty one years of age from January 2005 to December 2009. Results: There were a total of 2172 documented cases of completed suicide in the age group between 4 to 21 years. The majority were female and belonged to the adolescent age group. The incidence of suicide showed an increasing trend within the five years of the study. A monthly breakdown of the cases revealed that the incidence of suicide was lowest in January and February and peaked from April to October. Hanging was the most common mode of suicide followed by poisoning and drowning. The reason for suicide could be ascertained only among 25.5 % of cases. Domestic violence (35%), mental illness (24%), failure in academic achievement (15.8%) and end of a romantic relationship (8.7%) were found to be common causes of committing suicide. Of the 87 cases found who committed suicide because of academic failure 46.6% were at a grade ten level. Conclusions: Suicide in children and young adults in Nepal appears to be a concealed but serious problem requiring immediate attention and systematic efforts. DOI: http://dx.doi.org/10.3126/jnps.v33i2.7512 ? J Nepal Paediatr Soc. 2013; 33(2):110-116
Molecular characterization of Umbre virus (Bunyaviridae)
Pragya D Yadav, Akhilesh C Mishra, Devendra T Mourya
Virology Journal , 2008, DOI: 10.1186/1743-422x-5-115
Abstract: The viruses of Bunyaviridae family are spherical particles, range 80 to 120 nm in diameter and share a common genetic organization of three predominantly negative stranded RNA segments (S, M and L). Based on antigenic, genetic and ecological relatedness, the Bunyaviruses are divided into five genera. The genus Orthobunyavirus includes approximately 60 viruses, which are known to cause disease in humans (Elliot, 1996). Virological surveillance of these viruses depends primarily on detecting the viruses in arthropod vector populations in nature. Although, serological test like immunoassays are available for antigen detection for a few viruses, cross-reaction in closely related viruses cannot be ignored (Artsob et. al., 1984; Hildreth et. al., 1982).Umbre virus (UMB) [strain G-1424] was first isolated from Culex bitaeniorhynchus mosquitoes, collected in 1955 at Umbre, Kolaba district, Maharashtra State, India. The virus has been registered in the International Arbovirus Catalogue No. 43 (Dandwate et. al., 1969). During further field investigations, seven more strains of virus were isolated from Cx. vishnui mosquitoes. Recent reports on Bunyaviruses via. Ganjam virus isolation from Maharashtra (Joshi et. al., 2004) and antibody detection of Hantan virus in India (Chandi et. al., 2005), has provided evidences that Bunyaviruses are circulating in this country but their involvement in causing human and animal disease are not known yet. In the Gene Bank, only one sequence of Turlock serogroup i.e. N gene of M'poke virus is available.UMB viruses used in this study are listed in (Table 1) along with their geographical origin, host source and year of isolation. The available eight strains of this virus was procured from the virus registry of National Institute of Virology, Pune and propagated in VeroE-6 cells. Cytopathic effect (CPE) was observed during 4th – 6th post infection day. Infected cells were harvested, centrifuged and supernatant was used for molecular characterizat
Devendra Mishra,Shivani Joshi,Ganga Bisht,Sangeeta Pilkhwal
Journal of Basic and Clinical Pharmacy , 2010,
Abstract: The essential oil from the roots of Solidago canadensis Linn. (fam. Asteraceae) was analyzed by GC, GC/MS and NMR spectroscopy. 39 constituents comprising 75.4% of the total oil were identified from the oil. Thymol constituted 20.25% of the oil followed by α-copaene (6.26%) and carvacrol (5.51%).The antimicrobial activity of the oil was evaluated using disc diffusion method. Results showed that the oil exhibited significant antibacterial activity against S. feacalis and E. coli whereas it showed moderate antifungal activity against C. albicans.
Savita Pandey,Sangeeta Pilkhwal Sah,Mukesh Lal Sah,Devendra Mishra
Journal of Basic and Clinical Pharmacy , 2010,
Abstract: Antioxidant activity of hydromethanolic extract of Urtica parviflora Roxb. (family Urticaceae) was investigated by different in vitro methods, namely, nitric oxide scavenging, DPPH scavenging, and reducing power assay. In the present study, plant extract exhibited dose dependent free radical scavenging and reducing activity. The antioxidant activity of the hydromethanolic extract of Urtica parviflora Roxb. was compared with ascorbic acid as standard. In addition, phytochemical screening of hydromethanolic extract of the plant was undertaken to identify the phytochemicals present in the extract. Phytochemical examination revealed the presence of alkaloids, polysaccharides, saponins, flavonoids, phenolic compounds, glycosides and tannins. It was concluded that the extract contains important phytoconstituents responsible for antioxidant effect. The study indicated that Urtica parviflora could protect the cell injury caused by the reactive oxygen species and might be a valuable source of antioxidant both for medicine and food industry.
First Principles Calculations to Study the Equilibrium Configuration of Ozone Molecule
Laxman Mainali,Devendra Raj Mishra,Mukunda Mani Aryal
Physics , 2011,
Abstract: The present work describes the equilibrium configuration of the ozone molecule studied using the Hartree-Fock (HF), Moller-Plesset second order (MP2), Configuration interaction (CI), and Density functional theory (DFT) calculations. With the MP2 calculations, the total energy for the singlet state of ozone molecule has been estimated to be -224.97820 a.u., which is lower than that of the triplet state by 2.01 eV and for the singlet state the bond length and the bond angle have been estimated to be 1.282 {\AA} and 116.850 respectively. Calculations have also been performed to obtain the total energy of the isomeric excited state of ozone molecule and it is seen that the ground state energy of the ozone molecule is lower than that of the isomeric excited state by 1.79 eV. Furthermore, the binding energy of the ozone molecule has been estimated to be 586.89 kJ/mol. The bond length, bond angle and the binding energy estimated with HF, MP2, CI and DFT are compared with the previously reported experimental values.
Strength Characterization of E-glass Fiber Reinforced Epoxy Composites with Filler Materials  [PDF]
K. Devendra, T. Rangaswamy
Journal of Minerals and Materials Characterization and Engineering (JMMCE) , 2013, DOI: 10.4236/jmmce.2013.16054
Abstract: In this research work, an investigation was made on the mechanical properties of E-glass fiber reinforced epoxy composites filled by various filler materials. Composites filled with varying concentrations of fly ash, aluminum oxide (Al2O3), magnesium hydroxide (Mg(OH)2) and hematite powder were fabricated by standard method and the mechanical properties such as ultimate tensile strength, impact strength and hardness of the fabricated composites were studied. The test results show that composites filled by 10% volume Mg(OH)2 exhibited maximum ultimate tensile strength and hardness. Fly ash filled composites exhibited maximum impact strength.
On the Rational Approximation of Analytic Functions Having Generalized Types of Rate of Growth
Devendra Kumar
International Journal of Mathematics and Mathematical Sciences , 2012, DOI: 10.1155/2012/908104
Abstract: The present paper is concerned with the rational approximation of functions holomorphic on a domain ?, having generalized types of rates of growth. Moreover, we obtain the characterization of the rate of decay of product of the best approximation errors for functions f having fast and slow rates of growth of the maximum modulus.
Best ${L^p}$-approximation of generalized biaxially symmetric potentials over Carath'eodory domains in ${C^N}$ having slow growth
Devendra Kumar
Tamkang Journal of Mathematics , 2002, DOI: 10.5556/j.tkjm.33.2002.223-232
Abstract: Let $ F$ be a real valued generalized biaxially symmetric potentials (GBASP) defined on the Caratheodory domain on $ C^N$. Let $ L_mu^p(D)$ be the class of all functions $ F$ holomorphic on $ D$ such that $ parallel Fparallel_{D,p}=[int_Dmid Fmid^pdmu]^{1over p}$. Where $ mu$ is the positive finite, Boral measure with regular asymptotic distribution on $ C^N$. For $ Fin L_{mu}^p(D)$, set $ E_n^p(F)=inf{parallel F-Pparallel_{D,p}:Pin H_n}$, $ H_n$ consist of all real biaxisymmetric harmonic polynomials of degree at most $ 2n$. The paper deals with the growth of entire function GBASP in terms of approximation error in $ L_{mu}^p$-norm on $ D$. The analysis utilizes the Bergman and Gilbert integral operator method to extend results from classical function theory on the best polynomial approximation of analytic functions of several complex variables. Finally we prove a generalized decomposition theorem in a new way. The paper is the generalization of the concepts of generalized growth parameters to entire functions on Caratheodory domains on $ C^N$ (instead of entire holomorphic functions on $ C$) for slow growth.
Implementation of Adaptive Viterbi Decoder
Devendra Made
International Journal of Engineering Trends and Technology , 2013,
Abstract: Viterbi algorithm is employed in wireless communication to decode the convolutional codes; those codes are used in every robust digital communication systems. Such decoders are complex & dissipiate large amount of power. Thus the paper presents the design of an Adaptive Viterbi Decoder (AVD) that uses survivor path with parameters for wireless communication in an attempt to reduce the power and cost and at the same time increase in speed. Most of the researches work to reduce power consumption, or work with high frequency for using the decoder in the modern applications such as 3 GPP, DVB, and wireless communications. Field Programmable Gate Array technology (FPGA) is considered a highly configurable option for implementing many sophisticated signal Processsing tasks. The proposed decoder design is implemented on Xilinx Spartan 3 , XC3S200 FPGA chip using VHDL code and Xilinx ISE 9.1 used for synthesis.
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