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2000 articles for “CO” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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SYNTHESIS AND CHARACTERIZATION OF MIXED LIGAND COMPLEXES OF HYDROXAMIC ACIDS WITH POTASSIUM HEXATHIOCYANATO CHROMIUM (III) TETRA HYDRATE
Abstract: Some hydroxamic acids eg.[L1= benzohydroxamic acids (BHA), L2= N-phenyl– benzohydroxamic acid (NPBHA), L3= pivaloyl benzohydroxamic acid (PHA) and L4=N-phenyl-pivaloyl benzohydroxamic acid (PPHA) prepared and reacted with L’=Potassium hexathiocynato chromium (III) tetra hydrate K3[Cr(SCN)6]4H2O.The mixed ligand complexes of hydroxamic acids characterized with the help of repeated melting point, by I.R. studies, magnetic moment, molar conductance and by elemental analysis(C,H and N).The stoichiometry of the complexes were found to be 1:2(M:L) molar …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 2, Issue 2, 2016 Read article
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Millard Reaction: The Chemical Reaction of Browning, Flavoring and Aroma Through the Science of Cooking.
Abstract: The Maillard reaction is a step in the formation of advanced glycation endproducts (AGEs). It is tracked by measuring pentosidine. Even though the Maillard reaction has been studied most extensively in food science, it has also displayed and shown correlation in many different diseases in the body of human being, especially in degenerative eye diseases. In normal conditions, these diseases are due to the accumulation of advanced glycation endproducts (AGEs) …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 5, Issue 2, 2019 · pp. 9–19 Read article
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Design of a Continuous Stirred Tank Reactor for Acetic Acid Production Using Homogeneous Catalyzed Reaction
Abstract: The carbonylation of methanol to give acetic acid is one of the most important homogeneously catalyzed industrial processes. Detailed work has been carried out by researchers on its kinetic study and attempt to increase the activity of the catalyst. In this work attention is focused on the design of a continuous stirred tank reactor (CSTR) for the production of 210, 000 tons per year of acetic acid. At a maximum …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 7, Issue 1, 2021 · pp. 17–38 Read article
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Thermodynamic and Kinetic Characterization of Aluminum Corrosion and Inhibition Adsorption of Vernonia Amygdalina Fruit Extract IN 0.5N H2SO4
Abstract: Anti-corrosive efficacy of ethanolic extract of Vernonia amygdalina fruit extract on corrosion of aluminum in 0.5N H2SO4 acidic solution was explored by mass loss measurement at rise in temperature between 303-343 K for 24 hours immersion period. The I.E. (η%) has been noticed prominently high (62.92%) at concentration 0.45% at 303 K. An inhibitor adsorption on the surface aluminum have been found to be best fitted Langmuir adsorption isotherm. It …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 9, Issue 1, 2023 · pp. 20–27 Read article
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Bidding Strategy for Building Projects Based on Game Theory
Abstract: The owners of construction projects typically apply a competitive bid process to award a contract to the qualified bidder who submits the lowest price. For the contractors, it is very difficult to decide an optimal mark-up and bid value to win the contract and at the same time to secure sustaining profitability as high as possible. For that, from the various literatures related to the bidding problems, the factors are …
Published in International Journal of Construction Engineering and Planning · Vol. 5, Issue 1, 2019 · pp. 1–11 Read article
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Fresh and Hardened Properties of High Performance Concrete with Weld Slag as Fine Aggregate
Abstract: This research centers on the incorporation of welding slag, the residue remaining after the welding process, as fine aggregates in the production of high-performance concrete with a compressive strength of 70 MPa. The chemical and physical characteristics of welding slag aggregates (WSA), such as chemical compositions, specific gravity, SEM images, XRD, and EDS analysis, were investigated. Additional investigations were carried out by substituting welding slag with standard sand at varying …
Published in International Journal of Construction Engineering and Planning · Vol. 9, Issue 2, 2023 · pp. 29–36 Read article
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Review on the Performance of Fibre and Industrial Slag in Concrete
Abstract: This review paper discusses about the different types of fibre used in concrete at different periods with the mix parameter details. This review enlightens the effect of industrial waste such as Bottom ash, Copper slag, Ferro-chromium slag, Ground granulated blast furnace slag (GGBFS), Steel slag, Stainless steel slag as a substitute in concrete. The elaborate study on its chemical composition and also the merits and demerits of using the slag …
Published in International Journal of Concrete Technology · Vol. 1, Issue 1, 2015 · pp. 16–30 Read article
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A Review- State of Art on Hot Weather Concreting and Rheology of Cement-Based Materials
Abstract: The objective of this paper is to explore the important mechanisms that control the rheology of cement based materials under hot weather conditions. The effect of hot weather on the fresh and mechanical properties of concrete was investigated. The paper presents some of the practices taken to alleviate the effects of hot weather on concreting. The rheological properties of Portland cement paste and concrete were discussed using both the conventional …
Published in International Journal of Concrete Technology · Vol. 1, Issue 1, 2015 · pp. 49–62 Read article
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Re-Characterization of Strength Properties of Asphalt Concrete Mixtures Using Non Bituminous Modifier – Candle Wax
Abstract: Improving the performance of asphalt concrete mixtures synonymous with flexible pavement has been a major concern in highway engineering. However, design of flexible pavement begins with proper material characterization to ensure that designs are appropriate. It is also pertinent to say that sometimes if not most times the properties of the individual materials that make up the pavement structure falls short of desired expectations. This has led to exploring techniques …
Published in International Journal of Concrete Technology · Vol. 2, Issue 1, 2016 · pp. 30–36 Read article
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Effect of House Hold Waste Glass on mechanical properties of concrete
Abstract: Waste management is of great problem in current scenario. A huge amount of waste is generating from various industries in large amount. A few amounts can be recycled otherwise lots of them as a waste to dump into the dump yard. This waste is creating problem in surrounding area which also impact on environment. Other side the problem related to river sand is increasing due to large exploration of river …
Published in International Journal of Concrete Technology · Vol. 8, Issue 1, 2022 · pp. 1–8 Read article
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Condition Assessment of Structures Using Vibration Technique
Abstract: Structural Health Monitoring grasps the Promise for enhancing the structural performance with an outstanding cost/benefit ratio. Condition assessment is a technique used in health monitoring in the damage detection, to ensure the serviceability and the durability of the structures. In the present report, condition assessment of the structures using low frequency technique is being completed through experimental modal analysis and computational analysis software ANSYS 9.0 over structural elements beam and …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 3, Issue 1, 2017 · pp. 36–46 Read article
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Soft Computing Based Prediction of Ultimate Bearing Capacity of Footings Resting on Rock Masses
Abstract: The present study attempts to predict the ultimate bearing capacity of shallow foundations on rock masses using five different soft computing techniques namely i) random forest regression approach, ii) artificial neural networks, iii) support vector machine with polykernel, iv) support vector machine with (radial basis function) RBF kernel and v) M5P model tree. The ultimate bearing capacity was assumed to be dependent rock mass rating, unconfined compressive strength of rock, …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 5, Issue 2, 2019 · pp. 1–14 Read article
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Properties of Bentonite Stabilised with Fluorogypsum
Abstract: This paper presents the properties of the bentonite stabilised with fluorogypsum. For this purpose, commercially available bentonite and fluorogypsum were used in this investigation. The fluorogypsum content and the curing period were varied from 0% to 10 % and 0 to 28 days respectively. Compaction tests results reveal that the maximum dry unit weight increases and optimum moisture content decreases with the increase in the fluorogypsum content to the bentonite. …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 6, Issue 1, 2020 · pp. 43–53 Read article
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Nonlinear Pushover Analysis of RC Frame Considering SSI Effect: A Review
Abstract: It is the need of modern era to go for the safe, reliable and economic structure design with special reference to seismic response of the structure. The classical methods which are based on elastic analysis are not able to predict the structural behaviour under the seismic forces. On the other hand the Pushover Analysis (POA) gives more reliable results. The POA is a static –nonlinear analysis. In this method the …
Published in International Journal of Structural Engineering and Analysis · Vol. 6, Issue 2, 2020 · pp. 21–25 Read article
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Thermal Effects on Elastic and Rigidity Modulus of Flexible Pavement Wearing Course
Abstract: Laboratory investigation of flexible pavement was carried out using asphalt concrete samples to simulate the behaviour of actual field conditions of a flexible pavement. The study was carried out in order to ascertain the changes that will result in the elastic and rigidity (shear) modulus of flexible pavement when subjected to increasing temperature conditions (thermal effect). The study became pertinent because mechanistic design of flexible pavement requires as input the …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 3, Issue 2, 2017 · pp. 1–7 Read article
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Simulation of delay variation at uncontrolled intersections for mixed traffic conditions
Abstract: Mixed traffic is composed of different vehicle types with varying geometric and acceleration characteristics. Capacity and delay are the two parameters mainly used to measure the effectiveness of uncontrolled intersections. The variation in the lengths and widths of a vehicle type also has an effect on the capacity and delay. Three intersections and three vehicle types are considered for the study. Also, different vehicle compositions scenarios (C1 to C11) were …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 4, Issue 1, 2018 · pp. 1–10 Read article
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Treatment of Dyeing Waste Water by Using Garlic Extract as a Natural Coagulant
Abstract: Coagulation is the process of removal of very fine particles by forming bigger flocs in the water. But this process is not much efficient in waste water treatment as in the treatment of drinking water. This is because of adding chemical coagulant for the treatment of waste water. Use of chemicals in treatment of dyeing waste water causes formation of non-biodegradable sludge. To avoid this we made an attempt in …
Published in International Journal of Water Resources Engineering · Vol. 1, Issue 1, 2015 · pp. 23–30 Read article
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Waste Water Treatment by Using Garlic Extract as a Natural Coagulant
Abstract: Coagulation is the process of removal of very fine particles by forming bigger flocs in the water. But this process is not much efficient in waste water treatment as in the treatment of drinking water. This is because of adding chemical coagulant for the treatment of waste water. Use of chemicals in treatment of dyeing waste water causes formation of non-biodegradable sludge. To avoid this we made an attempt in …
Published in International Journal of Water Resources Engineering · Vol. 2, Issue 2, 2016 · pp. 24–31 Read article
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Hydrological Response of Land Use Land Cover Change on Stream Flow of Anger Watershed, Blue Nile Basin, Ethiopia
Abstract: ABSTRACT The soil and water assessment tool (SWAT) model was applied to simulate the streamflow from the Anger watershed (7,982 km2), located in Western Oromia Regional State, Ethiopia. ArcGIS was applied to layer staking, mosaicking, image classification, and accuracy assessment. The purpose of the study was to examine the applicability of the SWAT model and to detect the effect of past land-use land-cover change on streamflow of the watershed. The …
Published in International Journal of Water Resources Engineering · Vol. 6, Issue 2, 2020 · pp. 39–58 Read article
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Parallel and Distributed Computing—A Review
Abstract: Parallel and dispersed registering is an intricate and quick developing exploration territory. In its short 50-year history, the standard parallel PC engineering has developed from Single Instruction Multiple Data stream (SIMD) to Multiple Instructions Multiple Data stream (MIMD), and further to approximately coupled PC bunch; now it is going to enter the Computational Grid period. The calculation research has additionally changed as needs be throughout the years. In any case, …
Published in International Journal of Distributed Computing and Technology · Vol. 2, Issue 2, 2016 · pp. 35–46 Read article