100 research outputs found

    Differential response of phosphorus utilization efficiency in rice by tracer technique using phosphorus-32 under phosphorus stress environment

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    In most soils, soil and fertilizer Phosphorus (P) are easily bound by either soil organic matter or chemicals and thus are unavailable to plants unless hydrolyzed to release inorganic phosphate. Therefore, the development of P-efficient rice varieties that can grow and yield better with low P supply is a key to improve crop production. P efficient plants play a major role in increasing crop yields due to shortage of inorganic P fertilizer resources, limited land and water resources and increasing environmental concerns. Based on the P uptake efficiency, four rice genotypes viz.,TNRH 180, CB08504, CB06732 and ADT 47 were selected from the field experiment and used in pot culture experiment with three levels of P using radio isotope technique to quantify the P acquisition efficiency (PAE) and P use efficiency (PUE) and also to determine the native P supplying power of the soils using 32P in low P soils. Growth and yield parameters, grain and straw yield and major nutrients uptake of rice genotypes were increased with enhanced level of phosphorus application. Among the four genotypes, TNRH 180 recorded the highest grain yield and uptake. Increasing the P application rate from 25 to 50 kg P2O5 ha-1 increased the %Pdff in grain and straw for all the genotypes. The mean per cent phosphorus utilization (PPU) ranged between 18.74 and 23.72. The PPU of the genotypes followed the order TNRH 180 (23.72 %) > CB08504 (23.36 %) > CB06732 (20.54%) > ADT 47 (18.74%). The PPU values were higher at lower level of P application (25 kg P2O5 ha-1) for the genotypes TNRH 180, CB08504 and CB06732. From this study showed that rice genotypes have the ability to utilize the both available and unavailable form of phosphorus by secreting some organic acids in the root portion to solubilize. Hence rice genotypes indicated above have the ability to increase phosphorus utilization efficiency

    Impact of Environmental Performance on Financial Performance: Empirical Evidence from Indian Banking Sector

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    There has been long-standing debate over whether or not firms gain economic competiveness from reducing their impact on the environment. Although ample literature is available on association between environmental performance and financial performance across various sectors, little empirical evidence is available in context of Indian banking sector. This research aims to analyze whether there is any significant relationship between environmental performance and financial performance of banks operating in India for a period 2013-14 to 2017-18. Secondary data has been collected for a sample of 83 banks operating in India. Content analysis was applied to extract information about environmental performance disclosed by sample banks followedby construction of environmental disclosure score index. Hierarchical multiple regression was applied to analyze relationship between environmental performance and financial performance after controlling for effects of size, financial leverage and capital intensity. Results exhibit no significant relationship between environmental performance and financial performance of banks operating in India. Findings of this research are expected to provide insight to users and readers of financial statements to have better understanding about the environmental practices carried out by banks. It would also contribute significantly towards decision making for policy makers in Indian banking sector to establish mandatory environmental legislations for reporting on environmental practices in order to improve non financial disclosure and financial performance in Indian banking sector

    Corporate Environmental Disclosures on the Internet: an Empirical Analysis of Indian Companies

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    The impact of industrialization, on natural resources, human health and environment was notclear till 1960s. Rachel Carson for the first time in 1962 raised important questions about humanimpact on nature in her book, Silent Spring. With the growing awareness towards sustainabledevelopment, industries and corporations have a major role in environmental degradationand protection thereof. In the past, accounting theories emphasized primarily on financial performance.This awareness on sustainable development is visible through varied environmentalmanagement mechanisms practiced amongst companies across the world. Environmental concernsare addressed by corporate giants through identification and estimation of environmentalcosts, benefits, investments, assets and liabilities into main stream accounting and reportingpractices, for varied managerial decisions. These focused environmental efforts have sharpenedand improved the global reporting standards. In India, the incorporation of environmentalcosts and benefits into mainstream financial reporting is at its nascent stage at present - but it iscertain to grow. Indian companies have not yet developed a holistic approach to environmentalreporting, as there is lack of environmental reporting guidelines. On the other hand environmentalawareness among Indian stakeholders gets strengthened with advancement in communicationtechnology. High propensity of environmental awareness ensures a more cautious approachamong Indian corporations to be environmentally responsible. With the advancementof information and communications technologies, global corporate information disclosureshave been on rise through the medium of internet, as confirmed by various recent national andinternational surveys. This research has observed that Indian companies follow diverse reportingpractices on the internet viz., stand alone environmental reporting (satellite accounts) orreporting along with the Annual/Financial Reports, or Sustainability Reporting. Copyright © www.iiste.or

    Response of growth, yield and quality of small onion (Allium cepa L. var. aggregatum don.) to Tamil Nadu Agricultural University-Water Soluble Fertilizers (TNAU-WSF)

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    Enhancing the food production for the growing world population has needed application of highly sustainable and efficient inputs to produce more food per unit of land. Hence, Tamil Nadu Agricultural University (TNAU), Coimbatore, Tamil Nadu has produced Water soluble fertilizers (WSF) in its maiden attempt and it is necessary to optimize on different crops. Small onion is one of the most important vegetables in the Indian diet and it has high demand but low productivity. To enhance crop productivity and quality of small onions, the application of TNAU-WSF was taken up. A field experiment was laid out in a Randomized block design (RBD) incorporating 8 treatments comprising of application of RDF at100% NPK as TNAU WSF, soil test based application of 75%, 100%, 125% NPK ha-1 as TNAU-WSF with soil application of sulphur (S) and foliar spray of TNAU Liquid multi micronutrient (LMM) and without S and TNAU LMM and absolute control. Each treatment was replicated thrice with onion (CO 4). Soil test based application of 125% NPK ha-1 as TNAU-WSF with sulphur (S) and TNAU LMM recorded significantly higher in plant height (54.01 cm), the number of leaves per bulb (8.56), leaf greenness (67.5 SPAD), root length (5.42 cm), polar bulb diameter (4.38 cm), equatorial bulb diameter (2.72 cm) fresh bulb weight (74.21 g), bulb yield (1751 t ha-1) and quality attributes like total soluble solids (TSS) (14.78 °Brix), ascorbic acid content (15.34 mg 100 g-1), pyruvic acid content (2.27 µmol g-1). However, soil test based application of 100% NPK ha-1 as TNAU-WSF was found to be an ideal rate to attain the economic target yield of the onion crop

    INHIBITIVE EFFECT OF WRIGHTIA TINCTORIA LEAVES AS GREEN INHIBITOR FOR MILD STEEL IN ACID MEDIUM

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    The inhibition efficacy of Wrightia tinctoria leaves (WTL) extract on mild steel in 1.0N hydrochloric acid with various exposure time (24 to 360hrs) and temperature (313 to 333K) are investigated by mass loss measurements. The value of inhibition efficiency is increased with increase of inhibitor concentration and gradually decreased with rise in temperature is suggestive of physisorption. The adsorption of WTL onto the mild steel surface is found to follow the Langmuir adsorption isotherm. Both kinetic (activation energy and change in heat of absorption) as well as thermodynamics parameters (adsorption of enthalpy, entropy and Gibbs free energy) are calculated and discussed in details. The characterization of alcoholic extract of inhibitor and corrosion products formed on the metal surface is analyzed by UV, FT-IR and SEM spectral studies

    Assessment of Left Ventricular Function in Ischeamic Stroke Patients of Government General Hospital and Madras Medical College, Chennai

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    CONCLUSIONS: • LVSD was observed in 30 patients of the present study (21.13%). • Diastolic dysfunction was observed among 12 patients (3.4%). • Association of LVSD with clinical severity and extent of the stroke had of positive correlation statistically . • Association of LVSD with in hospital stay mortality was not significant. • Hypercholesterolemia was observed as the most common risk factor among the ischaemic stroke patients. • Coexisting coronary artery disease and diabetes mellitus had positive correlation with left ventricular systolic dysfunction. • Smoking was one of the most common risk factor observed among the ischaemic stroke patients. • Patients with symptomatic heart failure of NYHA class III and IV had a positive correlation with left ventricular systolic dysfunction and clinical morbidity in ischaemic stroke. • ECG changes of previous MI had statistically significant correlation with left ventricular systolic dysfunction and clinical morbidity in ischaemic stroke. • Chest x- ray changes of cardiomegaly was observed among 4 out of 9 patients with in hospital stay mortality. • LVSD had no positive correlation with mortality . • 6 out of 12 patients with diastolic dysfunction were asymptomatic

    IoT Based Industrial Production Monitoring System Using Wireless Sensor Networks

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    The objective of the work is to monitoring the production lines in industry using wireless sensor networks. This work presents the benefits of an automated data collection and display system for production lines. It involves wireless sensor networks for monitoring the productions in industry. Condition monitoring reduces human inspection requirements through automated monitoring, reduces maintenance through detecting faults before they escalate and improves safety and reliability. This work can monitor productions using temperature, voltage and current sensors with support of microcontroller. The relay is acts like a switch to monitor the production lines. In this work, Global System for Mobile communication technique is used to transferring the collected data. The collection of data, it is transferred into computerize spreadsheet in the remote office by authorized personnel for reporting purpose. The system will generate an automated report which stays in place and the management only needs to act base on the results. This work is cost effective automatic data collection is the alternative to manual data collection. It significantly improves the accuracy of the valuable reports for the management. It also reduces the time for identifying the fault using this techniqu

    Effect of phosphorus activators on soil legacy phosphorus availability and its uptake by maize hybrid COH(M) 6 in calcareous soil

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    Continuous application of phosphatic fertilizers in association with its low recovery results in the insoluble legacy P buildup in agricultural soils. In this study, a field experiment was conducted with maize hybrid COH(M) 6 to know the effect of different P activators (Farmyard Manure, Humic acid, Phosphorus Solubilising Bacteria, and Phytase) on increasing the legacy phosphorus (P) availability. The P activators were combined and applied along with the different doses of P fertilizer (100%, 75%, and 50% soil test dose of P fertilizer). The results showed that the application of Farmyard manure (FYM) and Humic acid (HA) significantly (p < 0.05) increased the soil available P (18.54 kg ha-1) and notably reduced the calcium P fraction (93.08 mg kg-1). The application of FYM and HA with 100% soil test dose of P showed a similar grain (9.98 kg ha-1) and stover P uptake (12.67 kg ha-1) response as that of FYM and HA with 75% soil test dose of P. The study suggested that FYM and HA application has activated the fixed calcium phosphorus in soil and increased its availability for crop utilization. The findings have illustrated that even the reduced dose of P fertilizer application can support the nutrient uptake if they are applied along with P- activators such as FYM and HA. This could promote soil health by reducing the P overload and further P loss in soil

    Changes in biochemical constituents and antioxidant enzyme activity in groundnut (Arachis hypogaea L.) by the addition of coated multi-nutrient fertilization in calcareous soil

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    Sulphur and micronutrients play a vital in the growth and development of plants due to their catalytic effect on many metabolic processes. A field experiment was conducted to explore the changes in various biochemical constituents and antioxidants enzyme activities in response to coated multi-nutrient fertilization. The experiment consisted of five organic acids (citric acid, humic acid, fulvic acid, salicylic acid) and amino acid (glycine) coated multi-nutrient fertilizer sources applied at five different levels (0, 5, 10, 12.5 and 15 kg ha-1). Groundnut leaf samples were collected and analyzed for biochemical constituents such as proline, soluble protein and antioxidant enzymes viz., superoxide dismutase, catalase, peroxidase and carbonic anhydrase activities at harvest stages. The results revealed that, application of fulvic acid coated multi-nutrient fertilizer at 15 kg ha-1 registered lesser proline (5.93 µmoles g-1) and higher soluble protein (22.2 mg g-1) content, superoxide dismutase (8.93 EU mg-1), catalase (18.2 µg H2O2 min-1 g˗1), peroxidase (6.11 µg min-1 mg˗1) and carbonic anhydrase (14.8 EU mg-1) activities at harvest stage followed by 12.5 kg humic acid coated multi-nutrient fertilizer. The lesser response was noted with NPK control in influencing the biochemical constituents and antioxidant enzymes. It was concluded that fulvic coated multi-nutrient fertilizer at 15 kg ha-1 was the better source for improving the biochemical constituents and antioxidant enzymes of groundnut in calcareous soils

    ASIC Implementation of Multiplexer Based DAA

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    ABSTRACT: In Digital Image Processing Point, Line and Edge detection are performed through software approach. The proposed Architecture performs these operations through hardware approach using Distributed Arithmetic. Distributed arithmetic (DA) has been widely used to implement inner product computations with fixed inputs. Conventional ROM-based DA suffers from large ROM requirements. To reduce the memory requirements, Adder based DA uses pre-defined structure for computation. But both the methods are suitable only if at least one input is constant. This project aims to implement a new Distributed Arithmetic Architecture for point detection, line detection and edge detection in DIP when both the inputs are variable. The new architecture is termed as Multiplexer based Distributed Arithmetic (MUX based DA). The proposed architecture takes the advantage of Multiplexer and DA for inner product computations when both the inputs are variable. In addition it reduces ROM requirement and complexity in constructing Adder based architecture for higher order inputs. Here, the performance of proposed Architecture with ROM based DA, Adder based DA and with multiplier based implementation are compared. The MUX based DA reduces power up to 81% and needs 40% of area as compared with multiplier based implementation. KEYWORDS: ROM based DA,ADDER based DA,MULTIPLEXER based DA, CADENCE 180nm Technology. I.INTRODUCTION Distributed Arithmetic (DA) has been widely adopted for its computational efficiency in many digital signal processing applications. The most frequently used form of computation in digital signal processing is a sum of products which is dot-product or inner-product generation. DA is generally abit-serial computation operation that forms a product of two vectors in one clock cycle. The typical applications include DCT, DFT (Discrete Fourier Transform), FIR (Finite Impulse Response), and DHT (Discrete Hartley Transform) which can be found in main stream multimedia standards and telecommunication protocols. The advantage of DA is its special non multiplication mechanization which uses adder replacing multiplication and therefore simplifies the hardware implementation. The idea behind the conventional DA, called ROM based, is to replace multiplication operations by pre-computing all possible values and storing these in a ROM. The Adder based DA uses a fixed architecture which can be obtained by distributing fixed variable is used for inner product computation. The DA technique distributes arithmetic operation rather than lumps themas multipliers do. Conventional DA called ROM based DA decomposes the variable input of the inner product into bit level to generate pre-computed data.ROM based DA uses a ROM table to store the pre-computed data, which makesit regular and efficient in silicon area in VLSI implementation. However, when the size of the inner product increases the ROM area increases exponentially and becomes impractically large, even using ROM partition. In contrast to conventional DA, Adder based DA decomposes the other operand of inner product into bit level, distributes the multiplication operation, and shares the common summation terms .The adder based DA exploits the distribution of binary value pattern and may maximize the hardware sharing possibility in the implementation. Although the Adder based DA requires less hardware area and smaller computation cycle time than ROM based DA, both the existing method operates only on one input as fixed but the proposed MUX base DA computes result with both the input as variable as same as MAC. The direct implementation of the filter requires more number of resources, to reduce the number of resources Distributed Arithmetic came into existence which replaces multiplications by additions and siftings. The proposed DA algorithm came into existence which uses multiplexers to remove the usage of ROM memory and complexity in constructing fixed architecture for higher order inputs. The proposed MUX based D
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