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Bhīlwāra, India

Sharma A.,Mlv Government College | Pancholi K.C.,Mlv Government College | Bhatnagar S.P.,Gujarat University
Solid State Phenomena | Year: 2014

Real and Imaginary parts of the complex Dielectric Permittivity (ε' and ε") of Sandy Loam soil have been measured in the frequency range 150 MHz - 2.4 GHz using a Vector Network Analyzer at varied moisture contents, salinity and biomass. The Emissivity of the soil for normal incidence was also calculated from measured values of complex permittivity. The measured permittivity data show strong dependence on moisture content. Salinity causes higher permittivity and dielectric loss. Biomass appears to reduce the permittivity data due to increase in porosity of the soil. The emissivity of the soil was observed to decrease with increasing soil salinity, but it increases with biomass. © (2014) Trans Tech Publications, Switzerland. Source

Meena P.L.,Mls University | Kumar N.,Mls University | Meena K.S.,Mlv Government College | Jain P.K.,Mlv Government College
Asian Journal of Chemistry | Year: 2012

The term is a energy state, which arises from an approximation treatment of an electronic configuration and term symbol is label to that energy state. The importance of the term symbols have been emphasized in connection with the spectral and magnetic properties of complexes and metal free ions. Russell-Saunders (L-S) coupling and J-J coupling schemes are important schemes for determination of terms and term symbols of the atoms and ions. In this proposed work computation is done for calculating all possible terms for nonequivalent electron of f 2 d 1 configuration without any long tabulation with mental exercise and term symbols are assigned the terms. The possible microstates and spectroscopic terms calculated for f 2 d 1 configuration are 910 and 42 respectively. These terms are quartets (13) and doublets (29).The ground state term for f 2 d 1 is 4K and the ground state is 4K 11/2. Source

Meena K.S.,Mlv Government College | Gunsaria R.K.,Government College | Meena K.,Mlv Government College | Kumar N.,Mlv Government College | And 2 more authors.
Asian Journal of Chemistry | Year: 2012

High rates of mortality and morbidity due to water-borne diseases are well known in India. Serious degradation of water quality in urban India has often been attributed to indiscriminate disposal of sewage and industrial effluents into surface water bodies. The population in rural India is mainly dependent on the groundwater as a source of drinking water. As a quality concern the groundwater is often found to be contaminated with fluoride, arsenic, iron and salts. In recent years, fluorosis has emerged as major public health issue in rural India. This paper briefly presents the water quality special focus on fluoride. One hundred thirty samples were collected from different villages of Deoli Tehsil, (Tonk), Rajasthan during the month of May-June 2009 in clean polyethylene bottles. Samples were analyzed for different parameters such as- pH, total alkalinity (TA), fluoride (F -), nitrate (NO 3 -), total dissolved solids, chloride (Cl -), total hardness, electrical conductivity, Ca-H, Mg-H, CO 3 -2, HCO 3 -, Na + and K + by using standard techniques. The results revealed that the most of the water samples were below or beyond limits, according to the WHO standards (1996). The F - concentration ranged 0.30 to 9.60 ppm. Minimum (0.30 ppm) and maximum (9.60 ppm) concentration of F - was observed from Jalseena and Akodiya villages respectively. The drinking water of Deoli Tehsil is not potable, proper treatment of groundwater is suggested prior to its use for drinking purpose. Removal of fluoride from drinking water is suggested through various defluoridation techniques are available including quick reverse osmosis, electrodialysis and hit and trial method. Source

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