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Potentiometric Measurement of State-of-Charge of Lead-Acid Batteries Using Polymeric Ferrocene and Quinones Derivatives [PDF]
Touma B. Issa, Pritam Singh, Murray V. Baker, Todd Lee
Journal of Analytical Sciences, Methods and Instrumentation (JASMI) , 2014, DOI: 10.4236/jasmi.2014.44015

Abstract:

Measurement of state-of-charge of lead-acid batteries using potentiometric sensors would be convenient; however, most of the electrochemical couples are either soluble or are unstable in the battery electrolyte. This paper describes the results of an investigation of poly (divinylferrocene) (PDVF) and Poly(diethynylanthraquinone) (PAQ) couples in sulfuric acid with the view to developing a potentiometric sensor for lead-acid batteries. These compounds were both found to be quite stable and undergo reversible reduction/oxidation in sulfuric acid media. Their redox potential difference varied linearly with sulfuric acid concentration in the range of 1 M - 5 M (i.e. simulated lead-acid electrolyte during battery charge/discharge cycles). A sensor based on these compounds has been investigated.

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Hydrologic system complexity and nonlinear dynamic concepts for a catchment classification framework
B. Sivakumar,V. P. Singh
Hydrology and Earth System Sciences (HESS) & Discussions (HESSD) , 2012,

Abstract: The absence of a generic modeling framework in hydrology has long been recognized. With our current practice of developing more and more complex models for specific individual situations, there is an increasing emphasis and urgency on this issue. There have been some attempts to provide guidelines for a catchment classification framework, but research in this area is still in a state of infancy. To move forward on this classification framework, identification of an appropriate basis and development of a suitable methodology for its representation are vital. The present study argues that hydrologic system complexity is an appropriate basis for this classification framework and nonlinear dynamic concepts constitute a suitable methodology. The study employs a popular nonlinear dynamic method for identification of the level of complexity of streamflow and for its classification. The correlation dimension method, which has its base on data reconstruction and nearest neighbor concepts, is applied to monthly streamflow time series from a large network of 117 gaging stations across 11 states in the western United States (US). The dimensionality of the time series forms the basis for identification of system complexity and, accordingly, streamflows are classified into four major categories: low-dimensional, medium-dimensional, high-dimensional, and unidentifiable. The dimension estimates show some "homogeneity" in flow complexity within certain regions of the western US, but there are also strong exceptions.

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Hydrologic system complexity and nonlinear dynamic concepts for a catchment classification framework
B. Sivakumar,V. P. Singh
Hydrology and Earth System Sciences Discussions , 2011, DOI: 10.5194/hessd-8-4427-2011

Abstract: The absence of a generic modeling framework in hydrology has long been recognized. With our current practice of developing more and more complex models for specific individual situations, there is an increasing emphasis and urgency on this issue. There have been some attempts to provide guidelines for a catchment classification framework, but research in this area is still in a state of infancy. To move forward on this classification framework, identification of an appropriate basis and development of a suitable methodology for its representation are vital. The present study argues that hydrologic system complexity is an appropriate basis for this classification framework and nonlinear dynamic concepts constitute a suitable methodology. Discussing the utility of hydrologic data in describing the complexity of the underlying system, the study also offers a three-step procedure for a classification framework: (1) detection of possible patterns and determination of complexity levels of hydrologic systems; (2) classification of hydrologic systems into groups and sub-groups based on patterns and complexity; and (3) verification of the classification framework through establishing relationships between the data patterns/complexity and the catchment/process properties. The framework is expected to lead to a much more effective and efficient procedure for identifying the appropriate structure and complexity of models for hydrologic systems and, thus, save significant time, data collection, and computational requirements.

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PHYTOREMEDIATION OF A SODIC FOREST ECOSYSTEM: PLANT COMMUNITY RESPONSE TO RESTORATION PROCESS
B. SINGH,V. K. GARG
Notulae Botanicae Horti Agrobotanici Cluj-Napoca , 2007,

Abstract: The creation of a new biotope on degraded lands is the focused objective nowadays, on a global level. An attempt was made to rehabilitate sodic waste lands through the establishment of plant cover, with diverse plant communities within Banthra Research Station of the National Botanical Research Institute, Lucknow, India (80degr45min-53degr53min E and 26degr40min- 26degr45min N) for the last three decades. A rehabilitated forest ecosystem developed in this way consists in a number of herbs, shrubs and trees. Derris indica, Dalbergia sissoo, Azadirachta indica, Cassia siamea, Terminalia arjuna, Syzigium cumin were the dominant species in this rehabilitated forest, whereas Sporobolus, Desmostachya and Dactyloctenium were a common genera of grasses /forbs on a barren land. This study showed that species diversity and productivity significantly influenced the soil amelioration process. A comparison of three afforested sites with a varying degree of productivity and diversity indicated that some soil properties were influenced by diversity while others by productivity. Individual effects of diversity and productivity were classified as 42% and respectively 58%, in soil reclamation. A combined effect of both biomass productivity and species diversity contributed about 92% towards amelioration. There was an appreciable reduction in soil pH and ESP (exchangeable sodium percentage) and an increase in organic C and N contents showing that sodicity has receded in the forested soil. This experience can be tried out on similar sites of arid and semiarid regions of the world for the bioreclamation of sodic lands.

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Effect of SiC morphology on creep behavior in a composite rotating disc having varing thickness
V. Gupta,S. B. Singh
Applied Mathematical Sciences , 2012,

Abstract:

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Fluoride Signatures in Groundwater and Dental Fluorosis in Permanent Teeth of School Children in Rural Areas of Haryana State, India
V Kumar Garg,B Singh
International Journal of Occupational and Environmental Medicine , 2013,

Abstract: [No abstract available]

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E-Governance: Past, Present and Future in India
Nikita Yadav,V B Singh
Computer Science , 2013,

Abstract: Due to widespread demand of E-governance and exponentially increasing size of data, new technologies like Open source solutions and cloud computing need to be incorporated. In this paper, the latest trends of technology that the government of most of the country has adopted have been discussed. While working on this project we have concluded that E-Governance has made the working of government more efficient and more transparent to its citizens We have also presented an exhaustive list of E-Governance projects which is currently being used in India and in international scenario. We have provided a mechanism for improving E-Governance by including technologies such as Open Source and Cloud Computing.

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Room-temperature low-cycle fatigue behaviour of Ti-27Al-15Nb alloy
B K Singh,C Ramachandra,P N Singh,V Singh
- , 1995,

Abstract:

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