Solar tower technology has gained considerable momentum over the past decade. In a solar tower plant, a single receiver is used and the power collected by the heliostat field is strongly coupled to the tower height and its location with respect to the field. The literature available focuses largely on the component-level details of the heliostat field, ray-tracing mechanisms, receiver heat transfer analyses, etc.

High energy density Li-rich layered cathode materials suffer from structural instability at high voltage. It is known that oxygen stability influence the structural stability of Li2MO3 (M=Co/Mn/Ni). Oxygen stability with partial de-lithiation has not been clarified in presence of multiple d-orbital elements. This work presents density functional theory based study of Li1.17Ni0.17Mn0.67O2. In the series of Li-rich compounds, end point material is Li2MnO3, in which oxidation of Mn4+ compensates with oxidation of O2- to O2 while charging.

The Indian mobile telecom industry, one of the fastest growing sectors in India, had 5843 million subscribers in 2010-11 registering an annual growth rate of 4915%. The energy consumed by the sector was 163 PJ and the corresponding CO2 emission was estimated at 329 million tons. In this paper, the mobile telecom industry is dis-aggregated into various segments, based on the life-cycle of the device, and each segment’s contribution to the overall energy consumption and its respective CO2 emissions are discussed.

We have performed molecular dynamics (MD) simulations to explore the structure and dynamics of the ionic solvation shells of alkali ions and halide ions in aqueous solution. Several structural and dynamical properties such as radial distribution functions (RDFs), diffusivity, velocity autocorrelation function (VACF), etc. are computed to obtain a microscopic picture of solvation.

Agricultural policies in India directly impact the livelihoods of close to two thirds of India’s population. Through policies, the

Measuring progress towards the achievement of sustainable development goals (SDGs) will substantially depend on how countries are performing in the implementation of targets under the goals. One of the key challenges lies in designing sustainability indicators. For developing countries like India, the challenge is even more complex, given the continuous tension between quality of life aspirations and commitments towards sustainable development pathways.

We analyze the economic trade-offs associated with open-sourcing, the business strategy of releasing free open-source versions of commercial software products. We argue that the effect of the release of open-source versions on the customers' perception of products is an important determinant of open-sourcing outcomes.Open-sourcing is modeled as a strategic option for duopolists that compete in a market for software products. We show that open-sourcing can arise as an equilibrium outcome in our simple two-stage game.

Emergency and disaster management has become a widely researched area in the last decade. The use of Information and Communication Technologies (ICTs) has been highly advocated for addressing the obstacles and improving decision-making in the event of a disaster. A number of ICT support systems and frameworks, both conceptual and application-based, have evolved over time to support the highly time and collaboration intensive task of emergency and disaster management. The use of ICTs like GIS has helped the relief worker to a great extent.

Analytical expression of the physical parameters of an illuminataed solar cell using explicit J-V model.Simple explicit model was introduced to represent the J–V characteristics of an illuminated solar cell with parasitic resistances

Solid‐state electrochemistry is drawing considerable interest as the interconversion of O2 and water playing an important role in energy conversion and storage technologies. With the aim of developing an efficient bifunctional catalyst by tuning the electronic properties and local structure around the 3d metal in CoWO4, solid solutions of Co1−xMnxWO4 are investigated. Nanocrystalline Co1−xMnxWO4 (x=0 to 1) phases with a unique exposure of low surface energy planes are synthesized by hydrothermal methods.