94 research outputs found

    Driver Assist System (DAS) to Prevent Road Accidents

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    Accidents occurring in traffic are increasing every day with the Statistics of 2015 reported, at least 10 people died and another 35 were injured when a bus fell into a ditch on February 4,2015 while travelling between the Indian cities of Pune and Satara. The risk that comes along with footboard travelling in buses has taken many lives. With accidents reported, 4 students travelling on footboard of an overcrowded bus were crashed to death fatally against a lorry on 10th December, 2012 at Rajiv Gandhi Salai, Chennai. Footboard travelling in buses is dangerous and the event must be prevented by implementing a system with advanced technology that stops passengers from travelling in footboard. In typical Metropolitan buses doors are available to shut off after the passenger boards and disembark the bus. But this is not anti-tampered and so it causes the drivers to easily falsify it. The DAS features a system in which the microcontroller continuously monitors the output from the sensors placed in the footboard of the bus and stops the bus if a person stands on the footboard for more than the programmed time. The system also has advanced lane detection system and IR based driver fatigue identifying system. This system comprises of the distance reflective sensor that can prevents accidents by controlling vehicle speed. It also incorporates a LCD display of the passenger count and LED indication about seat availability to the commuters outside the bus. DOI: 10.17762/ijritcc2321-8169.150315

    RELATIONSHIP BETWEEN STEM BIOMASS AND VOLUME OF Pinus caribaea IN THE YAGIRALA FOREST RESERVE

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    The biomass is an important measurement in commercial forestry maintained to producepulp, paper, chips, fuel wood products etc. The estimation of the biomass of the tree is notan easy task and few studies were carried out so far.The present study was conducted in the 25 years old Pinus caribaea plantation in YagiralaForest Reserve, which is in the low country wet zone. According to the geographicaldifferences in the plantation, i.e., valley, slopes and ridge, stratified random sampling wascarried out and two 0.05 ha circular plots were established in each stratum. Altogether 6plots were used for the data collection.The diameter at breast height (dbh), total height were measured for all the trees in theseplots and after dividing the tree stem into several sections, the length and end and middiameters of each section was measured using the Spiegel relaskop.The volume of the stem was estimated by calculating section volumes. Smalian's andNewton's formula were used to estimate the section volumes except for the final section atthe top, which was assumed as a cone. In order to save time, one plot was measured forNewton's formula and the rest was measured for Smalian's formula. Then a relationshipwas build to estimate Newton's volume (Ne) using Smalian's volume (Sm) as theexplanatory variable (equation I). The R2value was 99.9%.Ne = 0.976 * Sm (1)Biomass of the tree was estimated by extracting core samples at the breast height and midheight of the tree. The density of the core samples were estimated using oven dry weightand the green volume of the core samples. When tested, there was no significant differenceof the density along the stem. Therefore stem biomass was estimated using the density atthe breast height, and the total stem volume. Also there was no significant densitydifferences between three sites.The regression analysis was used with the pooled data to find out the relationship betweenthe stem biomass (W) and the volume (V). Using variable of stem volume and the biomassand its tranformations developed the several models. The best model was selected bychecking the R2 value, standard residual distribution, modelling efficiency and bias. Thebest rclationshin for the hiOI1l;]SS :l1lrl YOIIl"lr ,,·:1< lhr rnll:l1;nn ') whir]' h·w 02 .... 1.. " n

    Evaluation of Open Graded Friction Courses: Construction, Maintenance, and Performance Phase II

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    SPR No. 725This study investigated multiple factors that influence the performance of open graded friction courses (OGFC) in South Carolina with the ultimate goal of improving the long-term durability and performance of OGFCs. The research included laboratory studies to evaluate the influence of aggregate Los Angeles (LA) Abrasion and breakdown, aggregate gradation, compaction temperature, binder content, and tack coats using performance measures such as porosity, mean texture depth, Cantabro abrasion, indirect tensile strength (ITS), direct shear strength, and a newly developed surface abrasion test. Limited field evaluations were also conducted to assess the in-situ performance of OGFC. The results informed specification changes that the SCDOT had implemented throughout the duration of this study, including the addition of a 9.5 mm nominal maximum aggregate size (NMAS) OGFC mix, adjustment of the gradation of the 12.5 mm NMAS OGFC mix, and tack coat specifications for OGFC. Additional recommendations were also suggested for consideration based on the results of this study

    The Influence of L-Carnitine on Oxidative Modification of LDL In Vitro

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    Owing to their structure and function, low-density lipoproteins (LDLs) are particularly susceptible to the oxidative modifications. To prevent against oxidative modification of LDL, L-carnitine, with endogenous small water-soluble quaternary amine possessing antioxidative properties, was used. The aim of this paper was to prove the in vitro influence of L-carnitine on the degree of oxidative modification of the lipid part (estimated by conjugated dienes, lipid hydroperoxides, and malondialdehyde levels) and the protein part (estimated by dityrosine and tryptophan levels) of LDL native and oxidized by cooper ions. The level of lipophylic LDL antioxidant—α-tocopherol was also measured

    Diverse values of nature for sustainability

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    Twenty-five years since foundational publications on valuing ecosystem services for human well-being(1,2), addressing the global biodiversity crisis(3) still implies confronting barriers to incorporating nature's diverse values into decision-making. These barriers include powerful interests supported by current norms and legal rules such as property rights, which determine whose values and which values of nature are acted on. A better understanding of how and why nature is (under)valued is more urgent than ever(4). Notwithstanding agreements to incorporate nature's values into actions, including the Kunming-Montreal Global Biodiversity Framework (GBF)(5) and the UN Sustainable Development Goals(6), predominant environmental and development policies still prioritize a subset of values, particularly those linked to markets, and ignore other ways people relate to and benefit from nature(7). Arguably, a 'values crisis' underpins the intertwined crises of biodiversity loss and climate change(8), pandemic emergence(9) and socio-environmental injustices(10). On the basis of more than 50,000 scientific publications, policy documents and Indigenous and local knowledge sources, the Intergovernmental Platform on Biodiversity and Ecosystem Services (IPBES) assessed knowledge on nature's diverse values and valuation methods to gain insights into their role in policymaking and fuller integration into decisions(7,11). Applying this evidence, combinations of values-centred approaches are proposed to improve valuation and address barriers to uptake, ultimately leveraging transformative changes towards more just (that is, fair treatment of people and nature, including inter- and intragenerational equity) and sustainable futures

    Diverse values of nature for sustainability

    Get PDF
    Twenty-five years since foundational publications on valuing ecosystem services for human well-being1,2, addressing the global biodiversity crisis3 still implies confronting barriers to incorporating nature’s diverse values into decision-making. These barriers include powerful interests supported by current norms and legal rules such as property rights, which determine whose values and which values of nature are acted on. A better understanding of how and why nature is (under)valued is more urgent than ever4. Notwithstanding agreements to incorporate nature’s values into actions, including the Kunming-Montreal Global Biodiversity Framework (GBF)5 and the UN Sustainable Development Goals6, predominant environmental and development policies still prioritize a subset of values, particularly those linked to markets, and ignore other ways people relate to and benefit from nature7. Arguably, a ‘values crisis’ underpins the intertwined crises of biodiversity loss and climate change8, pandemic emergence9 and socio-environmental injustices10. On the basis of more than 50,000 scientific publications, policy documents and Indigenous and local knowledge sources, the Intergovernmental Platform on Biodiversity and Ecosystem Services (IPBES) assessed knowledge on nature’s diverse values and valuation methods to gain insights into their role in policymaking and fuller integration into decisions7,11. Applying this evidence, combinations of values-centred approaches are proposed to improve valuation and address barriers to uptake, ultimately leveraging transformative changes towards more just (that is, fair treatment of people and nature, including inter- and intragenerational equity) and sustainable futures
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