1,730,383 research outputs found
An annotated bibliography of research in parallel computing at the Indian Institute of Science
No full textBriefly describes research activities in parallel computing conducted at the Indian Institute of Science between 1985 and 1991. The activities include parallel computer architecture, parallel programming languages, parallel algorithms and task scheduling in multiprocessors. There have been ninety publications in this area which are cited, with small annotations giving the gist of each article
Economic evaluation of stormwater harvesting - A case study
No full textHarvesting Stormwater is gaining importance as it is viewed as a potential alternative source for meeting non-potable water demand from consumers. However, there have not been many economic studies carried out on the cost of supplying stormwater to consumers. The study reported in this paper makes an effort to estimate the cost of supplying stormwater to consumers using a case study from Gosford Local Government Area (GLGA). A significant finding of this study is that the larger urbanised catchments are the most suitable locations for stormwater harvesting projects. The results obtained indicated that the cost of supplying treated stormwater for non-potable purposes varied between 5/kL, which is significantly higher than the cost of town water supply. In depth analyses revealed that the major component of the capital cost is attributed to the cost of distribution system. Therefore, in areas that are already serviced by dual reticulation, it is possible that the cost of supplying stormwater would be equal to or lower than that of the existing town water supply. In addition, further refinement of cost functions can lead to more realistic $/kL values for the water harvested from stormwater. © Indian Institute of Science
Ant fauna of the Indian Institute of Science campus- survey and some preliminary observations
No full textOn the basis of a survey of ants on the campus of the Indian Institute of Science, a checklist of species and brief descriptions of commonly seen nests is provided. Some observations, especially on diets and daily foraging patterns in a few selected species are also presented. The main objective of this study was to explore the potential of the campus ant fauna for future work in behaviour and ecology
Ant fauna of the Indian Institute of Science campus- survey and some preliminary observations
No full textOn the basis of a survey of ants on the campus of the Indian Institute of Science, a checklist of species and brief descriptions of commonly seen nests is provided. Some observations, especially on diets and daily foraging patterns in a few selected species are also presented. The main objective of this study was to explore the potential of the campus ant fauna for future work in behaviour and ecology
Centre for Ecological Sciences Indian Institute of Science Bangalore
No full textCentre for Ecological Sciences Indian Institute of Science Bangalor
Intermolecular Complexes and Molecular Conformations Directed by Hydrogen Bonds: Matrix Isolation and Ab Initio Studies
No full textStudies on hydrogen bonding interaction in various systems, involving phenylacetylene (PhAc), propargyl alcohol (PA), borazine (BNH), propargyl amine (PAm) were performed using matrix isolation infrared spectroscopy and supported by ab initio computations. Weak intermolecular interactions of the above mentioned precursors with water, methanol, ether, acetylene and benzene were studied. These systems manifested O–H···π and n–σ ∗ interactions, such as C–H···O, N–H···O, O–H···O and O–H···N. In several cases the complexes were multiply tethered involving two or more of the above mentioned contacts. Many of the weak complexes exhibited a number of isomers, and the relative importance of the multiple non-covalent contacts resulted in a competition between the various isomers for the global minimum. It was found that subtle changes in the structures of the precursors tilted the balance towards one isomer or the other. Our studies also threw up a systematic method of building possible structures for complex systems starting from the known structures of related simple systems. We also studied the homodimers of PA and BNH. The BNH dimer was particularly interesting as one of its isomers was characterized by a bis-dihydrogen bond. We also studied the influence of hydrogen bonding interactions in determining the conformational landscape and preference in amino acids. Here again we were able to draw some generalizations regarding the conformational stability of amino acids. The combination of matrix isolation and ab initio computation is a powerful tool for studies on weak intermolecular interactions and conformations
Parameter space exploration in pedestrian queue design to mitigate infectious disease spread
No full textReducing the interactions between pedestrians in crowded environments can potentially curb the spread of infectious diseases including COVID-19. The mixing of susceptible and infectious individuals in many high-density man-made environments such as waiting queues
involves pedestrian movement, which is generally not taken into account in modeling studies of disease dynamics. In this paper, a social force-based pedestrian-dynamics approach is used to evaluate the contacts among proximate pedestrians which are then integrated with a stochastic epidemiological model to estimate the infectious disease spread in a localized outbreak. Practical application of such multiscale models to real-life scenarios can be limited by the uncertainty in human behavior, lack of data during early stage epidemics, and inherent stochasticity in the problem. We parametrize the sources of uncertainty and explore the associated parameter space using a novel high-efficiency parameter sweep algorithm. We show the effectiveness of a low-discrepancy sequence (LDS) parameter sweep in reducing the number of simulations required for effective parameter space exploration in this multiscale problem. The algorithms are applied to a model problem of infectious disease spread in a pedestrian queue similar to that at an airport security check point. We find that utilizing the low-discrepancy sequence-based parameter sweep, even for one component of the multiscale model, reduces the computational requirement by an order of magnitude.Journal ArticleFinal article published online ahead of prin
Extraterrestrial impacts creating architectures for life
No full textPrebiotic chemical evolution that led to the emergence of life on primitive Earth is interlinked with the delivery of organic material through the impact of comets, asteroids and meteorites. The catastrophic nature of impact leads to significant damage to planetary bodies. The high pressure and temperature can cause molecules to break apart and they may not survive in such extreme conditions. Also, impact-induced shock can cause impacted molecules to undergo vibration, dissociation, deformation, depending on their chemical properties and thus can offer enormous potential for the synthesis of building blocks of life. Novel experimental and theoretical approaches are required to simulate the phenomena that occur during impacts. In this brief review, we discuss impacts and related processes through laboratory experiments and simulations that study the impact-shock chemistry and its role in the Origins of Life
Bats of Indian Institute of Science campus
No full textThe lush green Indian Institute of Science campus is located in the north of Bangalore. The Maharaja of Mysore, Krishnaraja Wodeyar IV, generously gifted the Institute with 150.54 hectares of land. At present the extent of land holding of the Institute is 179.28 hectares (Suresh, H. S. and Harish Bhat, The Flora of IISc Campus, Technical Report, 1998). Prior to its establishment in 1909, it was said to have open scrubland and farmland. The present landscape is largely due to the planning of the visionaries like C. V. Raman, G. H. Krumbigel, Homi Bhabha, B. S. Nirody and C. N. R. Rao
Research Publications of Physics at the Indian Institute of Science, Bengaluru: A Scientometrics Study
Full text linkThe study attempts to analyse research publications of the Indian Institute of Science, Bengaluru in physics during the period 2010 - 2019. The bibliographic data for this study was extracted from the Web of Science (WoS) Core Collection database. The study analyses the year-wise research publications, types of document, preferred journals for publication, prolific author, h-index, most collaborating institutions and countries, etc. This paper analyses 2593 research papers published by scientists of the Department of Physics, Indian Institute of Science, Bengaluru during the period under the study. The findings indicate that the growth of literature pattern is linear, and journals articles (2421) are the most preferred form of publications by the researchers to communicate their research. Ajay Kumar Sood is found to be the most prolific author and Physical Review B is the most preferred journal. In the most cited publications, only one paper was single-authored and other 19 research papers were multiple-authored. Indian Institute of Technology and Jawaharlal Nehru Centre for Advanced Scientific Research were the leading collaborating institutions (195). The USA, Germany, France, England, and Sweden were the top five most collaborative countries
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