114 research outputs found

    MODELING & FORECASTING OF MACRO-ECONOMIC VARIABLES OF INDIA: BEFORE, DURING & AFTER RECESSION

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    This paper examines the state of the Indian economy pre, during and post-recession by analysing various macro-economic factors such as GDP, exchange rate, inflation, capital markets and fiscal deficit. We forecast some of the major economic variables using ARIMA modelling and present a picture of the Indian economy in the coming years. The findings indicate that Indian economy is reviving after a slowdown during the period of global recession. It is forecasted that GDP, foreign investments, fiscal deficit and capital markets will rise in 2010-11. Furthermore, the rupee-dollar exchange rates will not change much during the same period.ARIMA, Box-Jenkins, Indian economy, forecasting

    Modeling & Forecasting of Macro-Economic Variables of India: Before, During & After Recession

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    This paper examines the state of the Indian economy pre, during and post recession by analyzing various macro economic factors such as GDP, exchange rate, inflation, capital markets and fiscal deficit. We forecast some of the major economic variables using ARIMA modeling and present a picture of the Indian economy in the coming years. The findings indicate that Indian economy is reviving after a slowdown during the period of global recession. It is forecasted that GDP, foreign investments, fiscal deficit and capital markets will rise in 2010-11. Furthermore, the rupee-dollar exchange rate will not change much during the same period

    Modeling & Forecasting of Macro-Economic Variables of India: Before, During & After Recession

    Get PDF
    This paper examines the state of the Indian economy pre, during and post recession by analyzing various macro economic factors such as GDP, exchange rate, inflation, capital markets and fiscal deficit. We forecast some of the major economic variables using ARIMA modeling and present a picture of the Indian economy in the coming years. The findings indicate that Indian economy is reviving after a slowdown during the period of global recession. It is forecasted that GDP, foreign investments, fiscal deficit and capital markets will rise in 2010-11. Furthermore, the rupee-dollar exchange rate will not change much during the same period

    Seismic Response of Y-Shape Multi-Storey Building with Optimum Location of Shear Walls

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    Shear walls have extremely high in-plane strength and stiffness and also can counter heavy lateral loads making them quite advantageous in high-rise buildings. It is suggested to incorporate them in structures built in the places where there are chances of large intensity earthquakes or high winds. Positioning of the shear wall plays a very critical task in an asymmetric and irregular building subjected to earthquake forces. In our study, the main aim is to locate the advantageous position of the shear wall in Y-shaped asymmetric and irregular G+14 building in zone IV. The study is done by using a software package, CSI ETABS ver. 18.0.2. We have carried out Response Spectrum Analysis and Time History Analysis for this study. In this study, fourteen test models with unique location of shear wall are considered and parameters such as Time Period, Storey Displacement, Static Eccentricity, Storey Drift, Joint Displacement, Base Shear, and Base Force, are compared with the bare model. Thus, the best location of shear wall is suggested based on models having least static eccentricity, minimum displacement, Minimum drift, Minimum time period, Minimum joint displacement and Maximum base shear

    Evaluation of wind pressure on the low-rise buildings and surrounding terrainunder the influence of tornadolike vortex induced aerodynamic loads

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    Wind loading on buildings caused by straight line boundary layer winds has been thoroughly investigated in the past.The effects of vortex loading on structural projections will induce crosswind loads and torsional loads on low rise buildingwhich has severe dynamic resonant effect not only on the structural projections but also on over all structural elements of abuilding. These structural projections can be in the form of cantilever balconies, canopies, sunshades, overhangs,aesthetically projected elements. The purpose of each of these projections is different and designed to suit the convenienceof habitats. During the tornado, the damage of projections becomes flying debris due to the fatigue effect of fluctuatingpressure. In the present study,a model of low-rise buildings is tested under the influence of tornado-induced vortexes.Models were tested for F3 – F4 tornado for the wind speed 60m/s to 90m/s. Tornadoes of vortex core diameter 0.46 m to1.06 m in a smooth open terrain, simulations were carried out.A prototype of model of building in a scale of 1:400, actualdimensions of building is 20m x 20m x 10 m; the prototype model is prepared using flexi glass. An arrangement is made tostudy the effect of building on the ground terrain in surrounding region of building. Model was provided with pressuretapping to measure the surface pressure on all the walls and roof

    Influence of industrial by-products on the behavior of geopolymer concrete forsustainable development

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    Carbon dioxide emission in cement industries is a great concern for environment, which is increasing day by day.Therefore, it is very essential to find a possible material that can be used as a replacement of cement. Geopolymer concreteis a kind of inorganic concrete elucidating the formal usage of industrial and natural waste in either single or combinedform. Geopolymers are amorphous covalently bonded by a 3D network of inorganic molecules of aluminosilicate material.The formation of geopolymer concrete is greatly influenced by several factors such as binder chemical reaction, curingtemperature/period, molarity of the solution, and rate of polymerization. The curing temperature helps in deciding theproperties of geopolymer. Performance variables for geopolymer concrete such as selection of alkaline binder withpozzolana (Fly ash, slag, silica fume etc.) and interrelationship of GPC, reinforcing agent in geopolymer concrete withcomponents responsible for durability are summarized in detail. The durability of concrete is reviewed with structure withshrinkage-resistant, resistant to sulfate attack, and consequences of carbonation. The various consequences of corrosion arealso summarized in last of present review paper. Different research findings in this paper proves successfully thatgeopolymer is better construction material as compare to cement-based concrete

    Influence of industrial by-products on the behavior of geopolymer concrete for sustainable development

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    433-445Carbon dioxideemission in cement industries is a great concern for environment, which is increasing day by day. Therefore, it is very essential to find a possible material that can be used as a replacement of cement. Geopolymer concrete is a kind of inorganic concrete elucidating the formal usage of industrial and natural waste in either single or combined form. Geopolymers are amorphous covalently bonded by a 3D network of inorganic molecules of aluminosilicate material. The formation of geopolymer concrete is greatly influenced by several factors such as binder chemical reaction, curing temperature/period, molarity of the solution, and rate of polymerization. The curing temperature helps in deciding the properties of geopolymer. Performance variables for geopolymer concrete such as selection of alkaline binder with pozzolana (Fly ash, slag, silica fume etc.) and interrelationship of GPC, reinforcing agent in geopolymer concrete with components responsible for durability are summarized in detail. The durability of concrete is reviewed with structure with shrinkage-resistant, resistant to sulfate attack, and consequences of carbonation. The various consequences of corrosion are also summarized in last of present review paper. Different research findings in this paper proves successfully that geopolymer is better construction material as compare to cement-based concrete

    Putting digital technologies at the forefront of Industry 5.0 for the implementation of a circular economy in manufacturing industries

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    Together with a human-centered approach to designing and operating production and logistics in an industrial context, digital technologies can lead to a sustainable, resilient, and human-centric Industry 5.0 (I5.0). This article is one of the first interdisciplinary studies integrating digital technologies and circular economy (CE) concepts in I5.0. Using expert-based surveys of industry leaders and analytical hierarchical process techniques, the article advances CE and technology management by empirically investigating the influence of I5.0 on CE aspects in manufacturing. The novel results presented here can enable policymakers and industry leaders to design effective CE strategies

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    Not AvailableSeed is recognized to be the cheapest source, yet most critical single input for enhancing vegetable productivity. Use of good quality seeds can result in 15–20% yield increase. The Indian vegetable seed sector is established with tremendous potential to grow beyond boundaries of domestic market. Being high value per unit weight, vegetable seed segment has a significant share in the overall seed market in monetary terms. Although the price of vegetable seeds in market is very high, farmers are facing problem of spurious seed, low germination percentage and unavailability of quality seeds on time. Research and development interventions are required to overcome these problems and an effort has been made to identify the priority areas where interventions are required in vegetable seed sector. This study was undertaken during 2014-16 by conducting a survey of vegetable and seed experts in which major constraints in vegetable seed sector were identified. The constraints are rank ordered as perceived by the respondents like exorbitantly high price of private sector hybrids (Score-680, Rank-1), unavailability of quality seeds of recommended/released hybrids and OP varieties of vegetables (Score-658, Rank-2) and many more which have been discussed and will draw attention on the issues related to the vegetable seed sector which needs priority in further research.Not Availabl

    Quantitative high-resolution 7T MRI to assess longitudinal changes in articular cartilage after anterior cruciate ligament injury in a rabbit model of post-traumatic osteoarthritis

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    Objective To demonstrate an ultra-high field (UHF) 7 T delayed gadolinium-enhanced MRI of cartilage (dGEMRIC) protocol for quantitative post-traumatic osteoarthritis (PTOA) detection and monitoring in a rabbit anterior cruciate ligament transection (ACLT) model. Design ACL transections were performed unilaterally in 5 rabbits (33-weeks-old, 3.5 ± 0.5 kg) to induce PTOA. MRI exams were performed at 7 T prior to and 2, 4, 7 and 10-weeks after ACLT using a modified dGEMRIC protocol. Voxel-based T1 and T2 maps were created over manually drawn femoral cartilage ROIs from the center of the tibial plateau to the posterior meniscus. Femoral, tibial, and patellar epiphyses were harvested 10-weeks post-surgery and processed for μCT imaging and histology. Results Quantitative analysis revealed a 35% and 39% decrease in dGEMRIC index in the medial ACLT knee compartment 7- and 10-weeks post-surgery, respectively (p = 0.009 and p = 0.006) when compared to baseline. There was no significant change in the lateral ACLT compartment or in either compartment of the control knees. Visual inspection of histology confirmed PTOA in the ACLT knees. Osteophytes were found only in ACLT knees (osteophyte volume in femur: 94.53 ± 44.08 mm3, tibia: 29.35 ± 13.79 mm3, and patella: 3.84 ± 0.92 mm3) and were significantly larger in the medial compartments of the femur than lateral (p = 0.0312). Conclusion The dGEMRIC technique quantitatively applied at 7 T UHF-MRI demonstrates site-specific cartilage degeneration in a large animal PTOA model. This should encourage further investigation, with potential applications in drug and therapeutic animal trials as well as human studies
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