10 research outputs found

    Not Available

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    Not AvailableShrink–swell phenomenon is a complex process in vertic group of soils. Their dynamics in soils has long been presented through various models, field and laboratory methods. The present study finds out a feasible way to measure the shrink-swell potential and the key responsible factors in soil which are most influentialin determiningthis phenomenon.Four shrink– swell parameters such as coefficient of linear extensibility(COLE), coefficient of linear shrinkage (COLS), percent volume change on swelling(PVCsw), percent volume change onshrinkage (PVCs) measured at 25oC (room temperature,RT), 40oC and 110oC wereused to quantifyshrink – swell phenomenon. Results indicated that heating the soil cake at 110oC over 40oC does not bring higher change (0-10 %) in linear shrinkage, the corresponding value for volume change at 110oC showed greater change (3-61%) hence, COLS at 40oC and PVCs at 110oC amongst others were promising and may be recommended for routine measurement of shrink–swell phenomenonin the laboratory. Out of three the different measurement devices, cube shaped box appeared to be the better option. The soil properties which representcarbon content and soil substrate have significant correlations(p<0.01, p<0.05) with the corresponding shrink–swell parameters. The multiple regression analysis showed 69 percent variation for PVCs 110oC and 63 percent for COLS 40oC.Not Availabl

    Analysis of Moisture Content in Bricks Wall Panel Using FFT Analyzer

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    Modal examination is a great instrument to categorize the dynamic features of structure and material. All structures and materials that shake through high largeness of shaking at its own resonant frequency. For improving its strength, it is important to know the modal frequencyresonant frequency, modal figure and curbing features of the structure and material at its changing functioning circumstances and dependability at project point. Such a material in construction industry is brick. Brick is one of the most used structural materials for brick wall masonry, so it is necessary to identify its durability and reliability before use in construction. Water absorption is one of the property of all types of bricks, the allowable water absorption for standard brick, later involvement in the water for 24 hours, must not be more than 20 percent through heaviness of the brick. This system, we are using to measure the water content of brick wall is natural frequency, which is new in field of construction. Natural frequency is the frequency at which a method wavers once not exposed to an incessant or recurrent outside force. The basic idea behind this technology is that modal parameters of brick wall like (geometrical parameters, material properties) are the functions of the physical properties of the brick. Variations in the physical possessions will reason obvious changes in the modal attributes. By use of natural frequency to detect water content will be very useful for onsite detection of moisture

    ANALYSIS OF MOISTURE CONTENT IN BRICKS WALL PANEL USING FFT ANALYSER

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    Modal examination is a great instrument to categorize the dynamic features of structure and material. All structures and materials that shake through high largeness of shaking at its own resonant frequency. For improving its strength, it is important to know the modal frequencyresonant frequency, modal figure and curbing features of the structure and material at its changing functioning circumstances and dependability at project point. Such a material in construction industry is brick. Brick is one of the most used structural materials for brick wall masonry, so it is necessary to identify its durability and reliability before use in construction. Water absorption is one of the property of all types of bricks, the allowable water absorption for standard brick, later involvement in the water for 24 hours, must not be more than 20 percent through heaviness of the brick. This system, we are using to measure the water content of brick wall is natural frequency, which is new in field of construction. Natural frequency is the frequency at which a method wavers once not exposed to an incessant or recurrent outside force. The basic idea behind this technology is that modal parameters of brick wall like (geometrical parameters, material properties) are the functions of the physical properties of the brick. Variations in the physical possessions will reason obvious changes in the modal attributes. By use of natural frequency to detect water content will be very useful for onsite detection of moisture

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    Not AvailableAchieving sustainable crop productivity and maintenance of concurrent soil organic carbon (SOC) at desired levels in cereal-based cropping systems in relatively, poorly fertile Vertisols in semi-arid rainfed ecosystem is challenging task for dryland researchers. Different soil fertilization practices can contribute to carbon (C) sequestration, which requires a detailed knowledge of SOC dynamics in soil profile (0-1.0 m). We conducted a field experiment for 6 years to study the effect of applying mineral fertilizers and organic amendments (FYM, compost, green leaf and crop residue) on profile SOC stocks, C sequestration, SOC sequestration rate, C buildup rate and sustainable yield index (SYI) of maize and blackgram crops in dry semi-arid Vertisols of western India. The study encompasses different nutrient management viz., 100% recommended dose of fertilizer (RDF) of NP, 25 kg ha(-1) N (FYM) + 25 kg N (Urea) + 30 kg P ha(-1), 25 kg ha(-1) N (Compost) + 25 kg N (Urea) + 30 kg P ha(-1), 25 kg ha(-1) N (Crop residue) + 25 kg N (Urea) + 30 kg P ha(-1), 15 kg ha(-1) N (FYM) + 10 kg N (Crop Residue) + 25 kg N (Urea) + 30 kg P ha(-1), 15 kg ha(-1) N (FYM) + 10 kg N (Compost) + 25 kg N (Urea) + 30 kg P ha(-1), 15 kg ha(-1) N (FYM) + 10 kg N (Green Leaf) + 25 kg N (Urea) + 30 kg P ha(-1), 100% recommended N (urea) without P and unfertilized control. Randomized Complete Block design was used wherein all the treatments were replicated thrice. Application of 15 kg ha(-1) N (FYM) + 10 kg N (Crop Residue) + 25 kg N (Urea) + 30 kg P ha(-1) significantly improved the SOC concentration of the soil profile (0-1.0 m) than unfertilized control and treatments receiving solely mineral fertilizers. Highest SOC profile stock, C sequestration with concomitant C buildup was obtained with 15 kg ha(-1) N (FYM) + 10 kg N (Crop Residue) + 25 kg N (Urea) + 30 kg P ha(-1). A positive correlation is observed between total C input and profile mean SOC content (R-2 = 0.74), profile C stock (R-2 = 0.76), C sequestration (R-2 = 0.76), C sequestration rate (R-2 = 0.76) at P values < 0.01. The conjunctive use of 15 kg ha(-1) N (FYM) + 10 kg N (Green Leaf) + 25 kg N (Urea) + 30 kg P ha(-1) and 25 kg ha(-1) N (FYM) + 25 kg N (Urea) + 30 kg P ha(-1) resulted in highest mean grain yield of maize and blackgram, respectively, which were significantly superior to treatments receiving mineral fertilization alone. Application of organic amendments in combination with mineral fertilizers was found superior in improving the SYI. Critical C input of 1.14 Mg C ha(-1) year(-1) is suggested to be added in the soils externally to offset depletion of C and maintaining SOC at equilibrium in the semi-arid Vertisols of western India.Not Availabl

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    Not AvailableA long-term field experiment was conducted in Vertisols of Solapur (Maharashtra, India) to assess the effect of the integrated use of nutrients on yield, soil properties, and nutrient balance in post-monsoon sorghum. The highest crop yield (1.19 Mg ha(-1)) and available nutrients (308, 14.9, and 814 kg ha(-1) nitrogen (N), phosphorus (P), and potassium (K), respectively) were recorded in the treatment of 25 kg N sorghum crop residue (CR) + 25 kg N Leucaena clippings (LCs), 25 kg N (CR) + 25 kg N (urea), 25 kg N farmyard manure + 25 kg N (urea), and 25 kg N (CR) + 25 kg N (LC), respectively. Most of the nutrients were depleted except K and Ca. The response ratio for N (16 kg kg(-1)) and partial factor productivity (33 kg kg(-1)) were considerably higher in the 25 kg N (CR) + 25 kg N (LC) treatment. Conjunctive use of organic and chemical fertilizers helped in reducing the nutrient losses and improved their use efficiency and yield sustainability.Indian Council of Agricultural ResearchIndian Council of Agricultural Research (ICAR

    Abstracts of National Conference on Research and Developments in Material Processing, Modelling and Characterization 2020

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    This book presents the abstracts of the papers presented to the Online National Conference on Research and Developments in Material Processing, Modelling and Characterization 2020 (RDMPMC-2020) held on 26th and 27th August 2020 organized by the Department of Metallurgical and Materials Science in Association with the Department of Production and Industrial Engineering, National Institute of Technology Jamshedpur, Jharkhand, India. Conference Title: National Conference on Research and Developments in Material Processing, Modelling and Characterization 2020Conference Acronym: RDMPMC-2020Conference Date: 26–27 August 2020Conference Location: Online (Virtual Mode)Conference Organizer: Department of Metallurgical and Materials Engineering, National Institute of Technology JamshedpurCo-organizer: Department of Production and Industrial Engineering, National Institute of Technology Jamshedpur, Jharkhand, IndiaConference Sponsor: TEQIP-

    International Nosocomial Infection Control Consortium report, data summary of 50 countries for 2010-2015: Device-associated module

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    •We report INICC device-associated module data of 50 countries from 2010-2015.•We collected prospective data from 861,284 patients in 703 ICUs for 3,506,562 days.•DA-HAI rates and bacterial resistance were higher in the INICC ICUs than in CDC-NHSN's.•Device utilization ratio in the INICC ICUs was similar to CDC-NHSN's. Background: We report the results of International Nosocomial Infection Control Consortium (INICC) surveillance study from January 2010-December 2015 in 703 intensive care units (ICUs) in Latin America, Europe, Eastern Mediterranean, Southeast Asia, and Western Pacific. Methods: During the 6-year study period, using Centers for Disease Control and Prevention National Healthcare Safety Network (CDC-NHSN) definitions for device-associated health care-associated infection (DA-HAI), we collected prospective data from 861,284 patients hospitalized in INICC hospital ICUs for an aggregate of 3,506,562 days. Results: Although device use in INICC ICUs was similar to that reported from CDC-NHSN ICUs, DA-HAI rates were higher in the INICC ICUs: in the INICC medical-surgical ICUs, the pooled rate of central line-associated bloodstream infection, 4.1 per 1,000 central line-days, was nearly 5-fold higher than the 0.8 per 1,000 central line-days reported from comparable US ICUs, the overall rate of ventilator-associated pneumonia was also higher, 13.1 versus 0.9 per 1,000 ventilator-days, as was the rate of catheter-associated urinary tract infection, 5.07 versus 1.7 per 1,000 catheter-days. From blood cultures samples, frequencies of resistance of Pseudomonas isolates to amikacin (29.87% vs 10%) and to imipenem (44.3% vs 26.1%), and of Klebsiella pneumoniae isolates to ceftazidime (73.2% vs 28.8%) and to imipenem (43.27% vs 12.8%) were also higher in the INICC ICUs compared with CDC-NHSN ICUs. Conclusions: Although DA-HAIs in INICC ICU patients continue to be higher than the rates reported in CDC-NSHN ICUs representing the developed world, we have observed a significant trend toward the reduction of DA-HAI rates in INICC ICUs as shown in each international report. It is INICC's main goal to continue facilitating education, training, and basic and cost-effective tools and resources, such as standardized forms and an online platform, to tackle this problem effectively and systematically
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