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THE ROLE OF COAL COMBUSTION PRODUCTS IN MANAGING THE BIOAVAILABILITY OF NUTRIENTS AND HEAVY METALS IN SOILS
Seshadri,B; Bolan,N.S; Naidu,R; Brodie,K;
Journal of soil science and plant nutrition , 2010, DOI: 10.4067/S0718-95162010000100011
Abstract: coal provides the primary source of energy for many countries including asia, south america, north america and europe, and large quantities of waste products are produced during the combustion of coal in coal-fired power stations. this review paper gives an overview of the various types of coal combustion products (ccps) and their utilization in various sectors, with a particular emphasis on the role of ccps in managing the bioavailability of nutrients and heavy metals in relation to enhancing soil chemical fertility and mitigating metal contaminated soils. currently, ccps are used extensively in agricultural and construction industries. in agricultural industries, they are used primarily as an amendment to improve the physical and chemical properties of soil, as a source of liming material to ameliorate soil acidity and as a nutrient source to supply calcium and sulphur. in the construction industry, they are used mainly as a source of concrete, roofing material and road surface sealing. increasingly, ccps are used in the remediation of contaminated environments including control of acid mine drainage, mitigating phosphorus leaching in farm lands and immobilization of toxic metals in mine sites and agricultural soils.
24,4,8-Trioxa-21-aza-1,3,6(1,2)-tribenzena-2(2,3)-bicyclo[3.3.0]octanacyclooctaphane
P. R. Seshadri,B. Balakrishnan,K. Ilangovan,S. Purushothaman
Acta Crystallographica Section E , 2009, DOI: 10.1107/s160053680900720x
Abstract: The crystal structure of the title compound, C26H25NO3, was determined as part of an investigation of host–guest and electron donor–acceptor complexes. The oxazole and the pyrrole rings both adopt envelope conformations. The dihedral angle between the two benzene rings directly linked to the oxazole ring is 49.5 (1)°. The crystal structure is stabilized by a C—H...π interaction.
AI based Digital Companding Scheme for OFDM system using custom constellation Mapping and selection
K.Seshadri Sastry,Dr. M. S. Prasad Babu
International Journal on Computer Science and Engineering , 2010,
Abstract: Data rate is important in telecommunication because it is directlyproportional to the cost of transmitting the signal. Saving bits is the same as saving money . In this paper we propose new digital companding scheme for OFDM system based on using different constellation orderings (QAM modulator) , depending on the data to be transmitted . Depending on the data to be transmitted AI (Artificial Intelligent) block compresses and expands the signal, 8 to 3 bit compression is proposed(32:1 compression). The proposed schemewas simulated in Matlab7.4 and it was shown that the proposed companding scheme effective with low compression error.
The tragedy of the nature photography commons
Diogo Veríssimo,Arun Kanagavel,K. S Seshadri,Rajeev Raghavan
Asian Journal of Conservation Biology , 2013,
Abstract: EDITORIAL
THE ROLE OF COAL COMBUSTION PRODUCTS IN MANAGING THE BIOAVAILABILITY OF NUTRIENTS AND HEAVY METALS IN SOILS
B Seshadri,N.S Bolan,R Naidu,K Brodie
Journal of Soil Science and Plant Nutrition , 2010,
Abstract: Coal provides the primary source of energy for many countries including Asia, South America, North America and Europe, and large quantities of waste products are produced during the combustion of coal in coal-fired power stations. This review paper gives an overview of the various types of coal combustion products (CCPs) and their utilization in various sectors, with a particular emphasis on the role of CCPs in managing the bioavailability of nutrients and heavy metals in relation to enhancing soil chemical fertility and mitigating metal contaminated soils. Currently, CCPs are used extensively in agricultural and construction industries. In agricultural industries, they are used primarily as an amendment to improve the physical and chemical properties of soil, as a source of liming material to ameliorate soil acidity and as a nutrient source to supply calcium and sulphur. In the construction industry, they are used mainly as a source of concrete, roofing material and road surface sealing. Increasingly, CCPs are used in the remediation of contaminated environments including control of acid mine drainage, mitigating phosphorus leaching in farm lands and immobilization of toxic metals in mine sites and agricultural soils.
Reversal Of Parakeratosis, A Feature Of Psoriasis By Wrightia Tinctoria (In Emulsion) - Histological Evaluation Based On Mouse Tail Test
Mitra S.K,Seshadri S.J,Venkataranganna M.V,Gopumadhavan S
Indian Journal of Dermatology , 1998,
Abstract: An experimental histological evaluation on reversal of parakeratosis to orthokeratosis based on mouse tail test was conducted. Wrightia tinctoria (in emulsion) when applied to mouse tail, showed nearly 90% reversal of parakeratosis to orthokeratosis, when compared with treatments using retinoids and betamethasone.
Experimental Evaluation Of A Herbal Cream (SK-AC) On Acetylated Lanolin Alcohol-Induced ACNE In Rabbit
Mitra S K,Seshadri J S,Uaupa Venkatesh U,Venkataranganna M V
Indian Journal of Dermatology , 1998,
Abstract: Experimental studies were conducted in four groups of rabbits using external ear canal for inducing comedogenesis and its correction by a herbal formulation, viz., SK-AC cream. The result brought out that the SK-AC cream restricted the comedogenesis induced by acetylated lanolin alcohol when compared with other defined groups. Microcomedo being the basic pathology of acne, the outcome of this experiment pointed out the usefulness of SK-AC cream for the treatment of acne.
Photometry of the $δ$ Scuti star HD 40372
Sukanta Deb,S. K. Tiwari,Harinder P. Singh,T. R. Seshadri,U. S. Chaubey
Physics , 2010,
Abstract: We present B band photometry of the $\delta$ Scuti star HD 40372 using the ARIES three channel fast photometer attached to the 104-cm Sampurnanand telescope in high-speed photometric mode. The star was observed for $\sim$ 5 hours on December 13, 2008. Based on the high quality photometric data, we have done period analysis by various periodogram analysis techniques. The best estimate of the period is found to be $\sim 0.067$ days. With this period and the other stellar parameters determined from $uvby\beta$ photometry available in the literature, we have calculated the $Q$ value for the star. Comparison of this $Q$ value with that determined from the model calculations shows that the star is pulsating in p$_{3}$ mode with $l = 2$.
Code Division Multiplexing Using AI Based Custom Constellation Scheme - Efficient Modulation for High Data rate Transmission
K.SESHADRI SASTRY,,DR.M.S.PRASAD BABU
International Journal of Engineering Science and Technology , 2010,
Abstract: To achieve high bit rate in transmission over wireless channels frequency reuse is an encouraging concept . Rather than dividing allocated frequency spectrum into narrow band width channels , one for each user information is transmitted over a very wide frequency spectrum using the same carrier frequency within same frequency band . In this paper we propose code division multiplexing scheme in which Custom QAM modulator itself is used as code . The propose system is simulated and tested in Matlab 7.4.
Fuzzy logic based Adaptive Modulation Using Non Data Aided SNR Estimation for OFDM system
K.SESHADRI SASTRY,DR.M.S.PRASAD BABU
International Journal of Engineering Science and Technology , 2010,
Abstract: As demand for high quality transmission increases increase of spectrum efficiency and an improvement of error performance in wireless communication systems are important . One of the promising approaches to 4G is adaptive OFDM (AOFDM) . Fixed modulation systems uses only one type of modulation scheme (or order), so that either performance or capacity should be compromised Adaptive modulated systems are superior to fixed modulated systems, since they change modulation order depending on present SNR. In an adaptive modulation system SNR estimation is important since performance of adaptive modulated system depends of estimated SNR. Non-data-Aided (NDA) SNR estimation systems are gaining importance in recent days since they estimate SNR range and requires less data as input .In this paper we propose an adaptive modulated OFDM system which uses NDA(Non-data Aided) SNR estimation using fuzzy logic interface.The proposed system is simulated in Matlab 7.4 and The results of computer simulation show the improvement in system capacity .
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