85 research outputs found
Voltage to Frequency Converter: Modeling and Design
In this thesis a study on conventional voltage to frequency converter is given. A linear voltage to frequency converter is assumed i.e. the output frequency level changes with the varying input voltage level. Then as per the findings of our study a voltage to frequency converter is designed and a physical model of the designed circuit is prepared. A transformer and full wave rectifier are used to reach the optimal dc voltage level while the regulator is used for controlled power supply. An op-Amp based voltage to frequency converter is designed whose output is obtained through a 555 timer. The main operation of the op-Amp is to serve as a voltage integrator which is necessary for triangular wave generation and also as a comparator for converting the triangular wave into square wave. The timer circuit is operated in monostable mode. A simple and low cost voltage to frequency converter design and its performance analysis is the main objective of this thesis
Studies on genetic variability for some metric traits in slender grain rice genotypes
An experiment was conducted to study genetic variability in forty-nine elite slender grain rice genotypes for thirteen component characters including grain yield.The experimental materials possessed a considerable amount of variability for all the traits. Majority of the traits showed the smaller difference between phenotypic coefficient of variation (PCV) and genotypic coefficient of variation (GCV). Both PCV and GCV were high for grain yield (gm) (PCV:27.14%, GCV:26.27%), and fertile grains per panicles(PCV:20.61%, GCV:20.52%), indicating less effect of environment on these characters. PCV and GCV were moderate for characters like harvest index (PCV:16.99%, GCV: 14.18%), 100 seed weight (gm) (PCV:14.57%, GCV:13.82%), fertility percentage (PCV:15.72%, GCV:15.05%), flag leaf area (cm2 ) (PCV:17.83%, GCV: 17.74%) and days to 50 % flowering (PCV:11.20%, GCV:11.17%) indicating that there is considerable amount of environmental effect on such characters. Moderate to a high degree of heritability estimates were observed for the majority of the traits under study except for a number of effective tillers/plant indicating the low or negligible influence of environment in the expression of these traits and may respond to selection for their improvement. High heritability (H2 )estimates were associated with moderate to high genetic gain over mean (GAM) for days to 50% flowering (H2 : 99.35%,GAM: 19.52%), plant height (H2 :93.89%,GAM:14.01%), panicle length (H2 :94.06%,GAM:14.04%), flag leaf area(H2 : 98.93%,GAM: 31.05%), fertile grains/panicle (H2 :99.20%,GAM: 35.98%), fertility percentage (H2 :91.57%,GAM:25.34%),100 seed weight (H2 :89.90%,GAM:23.06%)and grain yield per plant (H2 :93.71%,GAM:44.76%) indicating the presence of additive gene effect and hence selection based on phenotypic performance for these traits would be effective
Code Generation for a Variety of Accelerators for a Graph DSL
Sparse graphs are ubiquitous in real and virtual worlds. With the phenomenal
growth in semi-structured and unstructured data, sizes of the underlying graphs
have witnessed a rapid growth over the years. Analyzing such large structures
necessitates parallel processing, which is challenged by the intrinsic
irregularity of sparse computation, memory access, and communication. It would
be ideal if programmers and domain-experts get to focus only on the sequential
computation and a compiler takes care of auto-generating the parallel code. On
the other side, there is a variety in the number of target hardware devices,
and achieving optimal performance often demands coding in specific languages or
frameworks. Our goal in this work is to focus on a graph DSL which allows the
domain-experts to write almost-sequential code, and generate parallel code for
different accelerators from the same algorithmic specification. In particular,
we illustrate code generation from the StarPlat graph DSL for NVIDIA, AMD, and
Intel GPUs using CUDA, OpenCL, SYCL, and OpenACC programming languages. Using a
suite of ten large graphs and four popular algorithms, we present the efficacy
of StarPlat's versatile code generator.Comment: arXiv admin note: text overlap with arXiv:2305.0331
Agroforestry practices for physiological amelioration of salt aff ected soils
Agroforestry is a sustainable land use system act as an alternative form of biological reclamation in salt affected soils apart from sustainable production, continuous income, and regular employment along with food and nutrition security. In general, salt affected soils get ameliorated by tree species; however, following factors such as nature and type of tree species planted, growth habit, quantity and quality of litter production, planting density, nitrogen fixation, and different management practices are influenced. In the present study, various studies pertaining to soil reclamation in the salt affected soils are reviewed. Overall result showed that trees grown with crops, horticultural crops, pastures resulted in improvement of physical and chemical properties of soil under various agroforestry systems. For instance, reduction of soil pH, electrical conductivity, and exchangeable sodium percentage minimization of salt deposition in the upper layers of the soil, improvement of water permeability and water holding capacity, improvement of infiltration rate and hydraulic conductivity with soil fertility, enhancement of cation exchange capacity, and other features are characteristics of soil as influenced by tree species, as well as through agroforestry practices. Various multipurpose tree species such as Acacia auriculiformis, Acacia nilotica, Albizia lebbeck, Terminalia arjuna, Casuarina equisetifolia, Prosopis cineraria, Prosopis juliflora; and fruit trees such as Zizyphus jujuba, Emblica officinalis, Syzygium cumini, and Tamarindus indica ameliorated the different salt affected soils in different agroforestry systems viz., agrisilvicultural system, silvipastoral system, multipurpose wood lot, and agrihorisilvicultural system. Thus, agroforestry system provides an alternative for restoring soil health and amelioration of salt affected soils for further yield improvement. Therefore, these species are suggested for reclamation of salt affected soil through agroforestry systems
рмУрнЬрм┐рм╢рм╛ рмЙрмкрмХрнВрм│рм░рнЗ рмЬрнЗрм▓рм┐рморм╛рмЫрм░ рммрм┐рммрм┐рмзрмдрм╛ рмПрммрмВ рммрм┐рм╕рнНрмдрм╛рм░рмг тАУ рмЬрнЗрм▓рм┐рморм╛рмЫрморм╛рмирмЩрнНрмХ рмжрмВрм╢рмирм░ рмкрнНрм░рм╛рмерморм┐рмХ рмЪрм┐рмХрм┐рмдрнНрм╕рм╛ (Diversity and distribution of jellyfish along the Odisha coast - First aid measures of jellyfish stings-Odiya Version)
Diversity and distribution of jellyfish along the Odisha coast - First aid measures of jellyfish sting
рдУреЬреАрд╢рд╛ рддрдЯ рдкрд░ рдЬреЗрд▓реА рдордЫрд▓рд┐рдУ рдХрд╛ рдмрд┐рдмрд┐рдзрддрд╛ рдФрд░ рдмрд┐рддрд░рди тАУ рдЬреЗрд▓реА рдордЫрд▓рд┐рдУ рдХрд╛ рдбрдВрдХ рдХреА рдкреНрд░рд╛рдердорд┐рдХ рдЙрдкрдЪрд╛рд░ (Hindi version of Diversity and distribution of jellyfish along the Odisha coast - First aid measures of jellyfish stings)
рдУреЬреАрд╢рд╛ рддрдЯ рдкрд░ рдЬреЗрд▓реА рдордЫрд▓рд┐рдУ рдХрд╛ рдмрд┐рдмрд┐рдзрддрд╛ рдФрд░ рдмрд┐рддрд░рди тАУ рдЬреЗрд▓реА рдордЫрд▓рд┐рдУ рдХрд╛ рдбрдВрдХ рдХреА рдкреНрд░рд╛рдердорд┐рдХ рдЙрдкрдЪрд╛рд░ (Hindi version of Diversity and distribution of jellyfish along the Odisha coast - First aid measures of jellyfish stings
Diversity and distribution of jellyfish along the Odisha coast - First aid measures of jellyfish stings
Diversity and distribution of jellyfish along the Odisha coast - First aid measures of jellyfish sting
Physics Potential of the ICAL detector at the India-based Neutrino Observatory (INO)
The upcoming 50 kt magnetized iron calorimeter (ICAL) detector at the
India-based Neutrino Observatory (INO) is designed to study the atmospheric
neutrinos and antineutrinos separately over a wide range of energies and path
lengths. The primary focus of this experiment is to explore the Earth matter
effects by observing the energy and zenith angle dependence of the atmospheric
neutrinos in the multi-GeV range. This study will be crucial to address some of
the outstanding issues in neutrino oscillation physics, including the
fundamental issue of neutrino mass hierarchy. In this document, we present the
physics potential of the detector as obtained from realistic detector
simulations. We describe the simulation framework, the neutrino interactions in
the detector, and the expected response of the detector to particles traversing
it. The ICAL detector can determine the energy and direction of the muons to a
high precision, and in addition, its sensitivity to multi-GeV hadrons increases
its physics reach substantially. Its charge identification capability, and
hence its ability to distinguish neutrinos from antineutrinos, makes it an
efficient detector for determining the neutrino mass hierarchy. In this report,
we outline the analyses carried out for the determination of neutrino mass
hierarchy and precision measurements of atmospheric neutrino mixing parameters
at ICAL, and give the expected physics reach of the detector with 10 years of
runtime. We also explore the potential of ICAL for probing new physics
scenarios like CPT violation and the presence of magnetic monopoles.Comment: 139 pages, Physics White Paper of the ICAL (INO) Collaboration,
Contents identical with the version published in Pramana - J. Physic
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