Arti Singh - Academia.edu (original) (raw)

Papers by Arti Singh

Effects of different levels of larval density (1, 5, 10, 15, 20, 25 larvae/container) on developm... more Effects of different levels of larval density (1, 5, 10, 15, 20, 25 larvae/container) on development, growth and reproduction of Earias vittella were examined under laboratory conditions when the temperature ranged from 22–33°C and R. H. varied from 57–91%-Larval survival was found to be negatively correlated to the level of density. However, it reduced the larval and pupal weights. Crowding also decreased the fecundity of adults. Hatching of the eggs laid by the females was not affected by the larval crowding.

Physica C-superconductivity and Its Applications, 2001

EPR spectra of deoxygenated Bi-2201, Bi-2212, Bi-2223, Y-123, Tl-2223 and Hg-1223 have been inves... more EPR spectra of deoxygenated Bi-2201, Bi-2212, Bi-2223, Y-123, Tl-2223 and Hg-1223 have been investigated. Different types of Cu-clusters as octamers, tetramers, dimers and monomers have been identified. EPR spectra were recorded for more than 100 samples of these materials, from different batches of preparations and from different portions of the same batch with the aim of recording all varieties of the spectra in these materials. Different samples of the same compound gave different spectra, some of which were repetitive but some spectra of the samples of different compounds were also similar. In different samples of the same compounds, different combinations of the spectra of octamers, tetramers, dimers and monomers appeared. In all 20 different types of spectra could be observed. The role of Cu-tetramers in the mechanism of high temperature superconductivity has been hinted at.

Physica C-superconductivity and Its Applications, 1999

EPR spectra of La 1.854 Sr 0.146 CuO 4 and its aging effect have been studied. Temperature variat... more EPR spectra of La 1.854 Sr 0.146 CuO 4 and its aging effect have been studied. Temperature variation of the EPR spectra of La 1.854 Sr 0.146 CuO 4 (from room temperature to liquid nitrogen temperature, LNT) along with CaCuO 2 for comparison has been carried out. In all the ...

Journal of Molecular Biology, 1998

Physica C-superconductivity and Its Applications, 2001

EPR spectra of deoxygenated Bi-2201, Bi-2212, Bi-2223, Y-123, Tl-2223 and Hg-1223 have been inves... more EPR spectra of deoxygenated Bi-2201, Bi-2212, Bi-2223, Y-123, Tl-2223 and Hg-1223 have been investigated. Dierent types of Cu-clusters as octamers, tetramers, dimers and monomers have been identi®ed. EPR spectra were recorded for more than 100 samples of these materials, from dierent batches of preparations and from dierent portions of the same batch with the aim of recording all varieties of the spectra in these materials. Dierent samples of the same compound gave dierent spectra, some of which were repetitive but some spectra of the samples of dierent compounds were also similar. In dierent samples of the same compounds, dierent combinations of the spectra of octamers, tetramers, dimers and monomers appeared. In all 20 dierent types of spectra could be observed. The role of Cu-tetramers in the mechanism of high temperature superconductivity has been hinted at. Ó

Physica C-superconductivity and Its Applications, 1997

The EPR spectra of deoxygenated La2CuO 4 were studied. On deoxygenation, various species are form... more The EPR spectra of deoxygenated La2CuO 4 were studied. On deoxygenation, various species are formed as copper monomers and copper tetramers. Their spin-Hamiltonian parameters have been given. The ferromagnetic coupling of spins of the 4 Cu 2÷ ions in the tetramers may be due to superexchange interactions mediated by intervening oxygen ions. The importance of this study has been discussed. © 1997 Elsevier Science B.V.

Recent advances in wireless sensor networks have led to many new protocols specifically designed ... more Recent advances in wireless sensor networks have led to many new protocols specifically designed for sensor networks where energy awareness is an essential consideration. Most of the attention, however, has been given to the routing protocols since they might differ depending on the application and network architecture. This paper surveys recent routing protocols for sensor networks and presents a classification for the various approaches pursued. The three main categories explored in this paper are data-centric, hierarchical and location-based. Each routing protocol is described and discussed under the appropriate category. Moreover, protocols using contemporary methodologies such as network flow and QoS modeling are also discussed. The paper concludes with open research issues. 2 sensor networks can enable a more civic use of landmines by making them remotely controllable and target-specific in order to prevent harming civilians and animals. Security applications of sensor networks include intrusion detection and criminal hunting.

Effects of different levels of larval density (1, 5, 10, 15, 20, 25 larvae/container) on developm... more Effects of different levels of larval density (1, 5, 10, 15, 20, 25 larvae/container) on development, growth and reproduction of Earias vittella were examined under laboratory conditions when the temperature ranged from 22–33°C and R. H. varied from 57–91%-Larval survival was found to be negatively correlated to the level of density. However, it reduced the larval and pupal weights. Crowding also decreased the fecundity of adults. Hatching of the eggs laid by the females was not affected by the larval crowding.

Physica C-superconductivity and Its Applications, 2001

EPR spectra of deoxygenated Bi-2201, Bi-2212, Bi-2223, Y-123, Tl-2223 and Hg-1223 have been inves... more EPR spectra of deoxygenated Bi-2201, Bi-2212, Bi-2223, Y-123, Tl-2223 and Hg-1223 have been investigated. Different types of Cu-clusters as octamers, tetramers, dimers and monomers have been identified. EPR spectra were recorded for more than 100 samples of these materials, from different batches of preparations and from different portions of the same batch with the aim of recording all varieties of the spectra in these materials. Different samples of the same compound gave different spectra, some of which were repetitive but some spectra of the samples of different compounds were also similar. In different samples of the same compounds, different combinations of the spectra of octamers, tetramers, dimers and monomers appeared. In all 20 different types of spectra could be observed. The role of Cu-tetramers in the mechanism of high temperature superconductivity has been hinted at.

Physica C-superconductivity and Its Applications, 1999

EPR spectra of La 1.854 Sr 0.146 CuO 4 and its aging effect have been studied. Temperature variat... more EPR spectra of La 1.854 Sr 0.146 CuO 4 and its aging effect have been studied. Temperature variation of the EPR spectra of La 1.854 Sr 0.146 CuO 4 (from room temperature to liquid nitrogen temperature, LNT) along with CaCuO 2 for comparison has been carried out. In all the ...

Journal of Molecular Biology, 1998

Physica C-superconductivity and Its Applications, 2001

EPR spectra of deoxygenated Bi-2201, Bi-2212, Bi-2223, Y-123, Tl-2223 and Hg-1223 have been inves... more EPR spectra of deoxygenated Bi-2201, Bi-2212, Bi-2223, Y-123, Tl-2223 and Hg-1223 have been investigated. Dierent types of Cu-clusters as octamers, tetramers, dimers and monomers have been identi®ed. EPR spectra were recorded for more than 100 samples of these materials, from dierent batches of preparations and from dierent portions of the same batch with the aim of recording all varieties of the spectra in these materials. Dierent samples of the same compound gave dierent spectra, some of which were repetitive but some spectra of the samples of dierent compounds were also similar. In dierent samples of the same compounds, dierent combinations of the spectra of octamers, tetramers, dimers and monomers appeared. In all 20 dierent types of spectra could be observed. The role of Cu-tetramers in the mechanism of high temperature superconductivity has been hinted at. Ó

Physica C-superconductivity and Its Applications, 1997

The EPR spectra of deoxygenated La2CuO 4 were studied. On deoxygenation, various species are form... more The EPR spectra of deoxygenated La2CuO 4 were studied. On deoxygenation, various species are formed as copper monomers and copper tetramers. Their spin-Hamiltonian parameters have been given. The ferromagnetic coupling of spins of the 4 Cu 2÷ ions in the tetramers may be due to superexchange interactions mediated by intervening oxygen ions. The importance of this study has been discussed. © 1997 Elsevier Science B.V.

Recent advances in wireless sensor networks have led to many new protocols specifically designed ... more Recent advances in wireless sensor networks have led to many new protocols specifically designed for sensor networks where energy awareness is an essential consideration. Most of the attention, however, has been given to the routing protocols since they might differ depending on the application and network architecture. This paper surveys recent routing protocols for sensor networks and presents a classification for the various approaches pursued. The three main categories explored in this paper are data-centric, hierarchical and location-based. Each routing protocol is described and discussed under the appropriate category. Moreover, protocols using contemporary methodologies such as network flow and QoS modeling are also discussed. The paper concludes with open research issues. 2 sensor networks can enable a more civic use of landmines by making them remotely controllable and target-specific in order to prevent harming civilians and animals. Security applications of sensor networks include intrusion detection and criminal hunting.