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1352 articles for “Respectful”
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The Comparative Catalytic Activities of Tungstate and Molybdate Ions on Oxygen Transfer Reactions Used in Production of Some Petrochemicals
Abstract: The comparative catalytic activities and kinetics of formation of glycerine from oxidation of allyl alcohol by hydrogen peroxide in the presence of sodium tungstate and sodium molybdate as catalyst have been studied. The reaction is zero order with respect to hydrogen peroxide concentration and the reaction is first order with respect to allyl alcohol and catalyst (sodium tungstate or sodium molybdate) concentrations. Tungstate catalyzed formation of glycerine from allyl alcohol …
Published in Journal of Catalyst & Catalysis · Vol. 4, Issue 1, 2017 · pp. 24–29 Read article
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Ru(III)-Catalyzed Oxidative Cleavage of Ritodrine Hydrochloride: A Kinetic and Mechanistic Study
Abstract: A systematic kinetic and mechanistic study of the oxidation of ritodrine hydrochloride (RTH) with chloramine-T (CAT) in both HClO4 and NaOH media has been carried out at 303 K. In acid medium, the reaction rate is very sluggish to be measured kinetically. Ruthenium (III) chloride ([Ru(III)]) was found to be an efficient catalyst. The reaction rate exhibits a first-order dependence on [CAT]0 in both media. It shows a fractional-order on …
Published in Journal of Catalyst & Catalysis · Vol. 1, Issue 1, 2014 · pp. 29–40 Read article
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Photo-Catalytic Degradation of Rhodamine-B by using UV/TiO2 and Nb2O5 Process: A Kinetic Study
Abstract: The photo-catalytic degradation of Rhodamine-B (RB) in aqueous solution with titanium dioxide (TiO2) and niobium pentaoxide (Nb2O5) as photocatalyst in slurry form has been carried out using UV-A light (254 nm). The effect of various parameters such as catalyst loading, pH and initial concentration of the RB dye on degradation have been determined. An attempt has been made to study the effect of process parameters through concentration of dye, amount …
Published in Journal of Catalyst & Catalysis · Vol. 1, Issue 3, 2014 · pp. 12–24 Read article
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Study of Seismic Performance of G+50 Storey Building with Different Locations of Shear Wall and with Diagrid
Abstract: AbstractThe present study investigates the behavior of G+50 storey octagonal shaped buildingprovided with shear wall and diagrid at different locations; by inter-combining all theseparameters of shear wall and diagrid total six models of G+50 storey building are made. The dynamic analysis of G+50 storey octagonal shaped building with shear wall and diagrid at a different locations using response spectrum method is carried out by using structural analysis and design computer …
Published in Journal of Construction Engineering, Technology & Management · Vol. 7, Issue 3, 2017 · pp. 30–39 Read article
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Finite Element Analysis and Validation of Axial Capacity of RC Columns Made of Steel Fiber Reinforced Concrete (SFRC)
Abstract: Steel Fiber Reinforced Concrete (SFRC) possesses many excellent dynamic performances such as; high resistance to explosion and penetration. It has little effect on pre-cracking behavior in uniaxial compression, but substantially enhances its post cracking response. This response leads to a greatly improved ductility and toughness. Steel fibers in SFRC are capable of preventing crack propagation as well as brittle failure of columns under uniaxial compression. To this end, four reinforced …
Published in Journal of Construction Engineering, Technology & Management · Vol. 5, Issue 2, 2015 · pp. 9–14 Read article
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Effect on Mechanical Properties of Concrete Using Industrial Waste
Abstract: Waste management is a great challenge for any country in current and future aspect. Solid waste generates from different industry i.e. stone, marble, coal, tire etc. are major issues in India. These wastes create major environmental & health problems for surrounding people. This study represents the utilization of waste kota stone slurry and marble powder as sand & cement replacing material with 15% fly ash of class-C. Waste kota stone …
Published in Journal of Construction Engineering, Technology & Management · Vol. 13, Issue 2, 2023 · pp. 19–25 Read article
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Implementation of Sense Amplifier-based D Flip-Flop using 0.25 µm and 0.18 µm Technology
Abstract: The traditional flip-flops and latches suffer from the large delays and the race conditions. This paper describes a new approach to the D flip-flop design using the sense amplifier. The previous efforts in the same direction made at the 0.25 µm technology exhibit improvements in clock-to-output delay and power dissipation with respect to recently proposed high-speed flip-flops. The paper discusses the flip-flop at 0.18 µm technology. The output latch of …
Published in Journal of Electronic Design Technology · Vol. 4, Issue 3, 2013 · pp. 10–13 Read article
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Urban Planning Mitigation Trajectories for Urban Heat Island (UHI) A Case Study of Guntur, Andhra Pradesh, India
Abstract: AbstractGlobal radiation related solair-temperature directly influences Urban Heat Islands (UHI) as the built environments and surrounding atmosphere cause increase in urban solair temperatures, the resulting temperature completely depends on the thermal properties of the exposed materials. Urban heat islands can lead to deterioration of flora and fauna, elevation of ground level ozone, health disorders and increase in building energy consumptions. The study area of Guntur region which is susceptible to …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 8, Issue 2, 2018 · pp. 12–29 Read article
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Numerical Simulation of Mitigation of Soil Swelling Problem under Communication Tower Using Helical Piles
Abstract: AbstractExpansive soils exhibit significant volume changes with variations in soil moisture content. Expansive soils are often considered as problematic soils. It undergoes large volume changes upon wetting and drying and causes huge damages to the structures resting on it. Numerical modeling was carried out by using PLAXIS 3D-2013 software, in which modeling the soil by using hardening soil model was done. Tower rested on expansive soils are subjected to uplift …
Published in Journal of Geotechnical Engineering · Vol. 4, Issue 3, 2017 · pp. 35–46 Read article
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Comparing Consistency Limits of Black Cotton Soil with Cement Waste Dust and Wood Shaving Ash
Abstract: In the field of civil engineering, soil has to play a prime role right from planning a structure to the end of life of that structure. But some of the soils do not offer that service which a civil engineer wants to get. Shrinking in dry state and swelling in wet state, is the well-known proved proverb for black cotton soil. In Saurashtra, southern part of the zone has such …
Published in Journal of Geotechnical Engineering · Vol. 4, Issue 1, 2017 · pp. 31–35 Read article
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Study on the Bio-kinetic Coefficients of Kitchen Effluent using UASB Reactor
Abstract: The upflow anaerobic sludge bed (UASB) reactor was operated at optimum organic loading rate (OLR) of 2.4 kg-COD/m3-day, with hydraulic detention time (HDT) of 10–12 h during the study. It was concluded from the study that the treatment of high-ranged kitchen mill effluent is technically feasible provided that the pH of the system is kept near to neutral. This can be achieved by adding NaHCO3 to the feed solution. The …
Published in Journal of Geotechnical Engineering · Vol. 2, Issue 1, 2015 · pp. 14–18 Read article
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Shallow Seismic Refraction Investigation for Site Classification and Geotechnical Engineering Applications
Abstract: The survey was carried to determine the Site Class of the study area and also estimate some geotechnical parameters of potential construction sites within the study area. The survey was conducted on the University of Mines and Technology (UMaT) campus, using Geometrics ES 3000, A 12-Channel seismograph developed by Geometric Inc. The results from the study show that the subsurface of the study area is made up of four layers. …
Published in Journal of Geotechnical Engineering · Vol. 7, Issue 2, 2020 · pp. 18–28 Read article
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A systematic review on computer usage among employees and its impact on musculoskeletal disorders
Abstract: AbstractAn insight into occupational stress enlightens on both contributing factors as well as their management. Musculoskeletal disorders (MSD) are prevalent across a wide range of occupations, accounting for 42 - 58% of all work-related disorders. Computer users, in particular suffer from poor working postures often resulting in MSDs. This review article examines the prevalence and risk factors for MSDs amongst them. Remedial measures for combating stress and musculoskeletal problems have …
Published in Journal of Industrial Safety Engineering · Vol. 4, Issue 3, 2017 · pp. 43–54 Read article
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Metallic Pollution Level in Soils of Mymensingh Town, Bangladesh: An Impact of Urbanization and Industrialization
Abstract: Untreated urban and industrial wastes disposal in Mymensingh town are the major problem and responsible for soil and water pollution. Total 24 soil samples were collected from different locations of Mymensingh town to assess metallic pollution level as well as to study some other physicochemical properties of soils. The mean total concentrations of Cu, Zn, Pb, Cd and Fe in soil samples were 68.69, 193.06, 62.47, trace and 18481.82 µg …
Published in Journal of Industrial Safety Engineering · Vol. 3, Issue 3, 2016 · pp. 17–25 Read article
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A Simulation Model to Predict the Performance of Ethanol- Gasoline Blend (E15) in a Spark Ignition Engine
Abstract: Usage of biofuels like bio-ethanol as a fuel in IC Engines is becoming prominent day by day due to their positive characteristics like biodegradability, nonpolluting, renewability, homegrown etc. Conducting experiments on real engine to establish the suitability of biofuels to IC Engines is very time consuming and expensive. Computer based simulation helps in addressing these problems. In this work an attempt is made to simulate performance and emission of SI …
Published in Journal of Industrial Safety Engineering · Vol. 7, Issue 3, 2020 · pp. 13–22 Read article
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Student Attendance Monitoring System with GSM Technology
Abstract: Due to a hectic and busy schedule, it becomes difficult for parents to keep a regular update on their children’s punctuality in their respective colleges. The same problem is faced by college’s administrative authority to present a report on each and every student’s performance record to the respective parents. This project’s aim is to improve on the solution for this particular problem with the use of GSM SMS; this system …
Published in Journal of Microcontroller Engineering and Applications · Vol. 4, Issue 1, 2017 · pp. 1–3 Read article
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Circularly Polarized Microstrip Fed Antenna for Dual Frequency
Abstract: Abstract: The presented antenna is designed for achieving dual frequency characterized circularly polarized behavior. The achievement of dual frequency is done by coupling of the microstrip feed line arrangement with the annular slot shaped with four unequal arms type of slot structure on the patch. The Reflection coefficient, pattern of radiation of the antenna and the Axial ratio are simulated. The impedance bandwidths obtained for lower of (RHCP) is 25% …
Published in Journal of Microwave Engineering and Technologies · Vol. 6, Issue 1, 2019 · pp. 1–5 Read article
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Metallurgical Perspective of Line Pipe Steel
Abstract: Over the past 30 years, severe demands have been placed on the pipe manufacturer with respect to the development and processing of materials to pipe line. Line pipe steels are put to extremely severe conditions like deep water, cold climate, corrosive and high pressure applications etc. Their quality requirements are becoming exceptionally stringent with respect to metallurgical properties i.e. cleanliness, physical and mechanical properties etc. In line with these requirements, …
Published in Journal of Materials & Metallurgical Engineering · Vol. 7, Issue 3, 2017 · pp. 20–25 Read article
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An Experimental Study on the Effect of Tensile Properties and Hardness of AA6082-T6 under the Heat Treatment Conditions
Abstract: AbstractIn the present study, the experiments were performed to investigate the effect of heat treatment parameters viz. soaking time and temperature on the tensile properties and hardness of Aluminium alloy (AA) 6082-T6 sheet. The sheet was heat treated and cut the standard tensile specimen ASTM E8M-04tofind out the tensile properties and hardness value at different temperature with respect to different soaking time. Air circulation oven type electric furnace was used …
Published in Journal of Materials & Metallurgical Engineering · Vol. 8, Issue 3, 2018 · pp. 36–41 Read article
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Adsorption Isotherm Study for Activated Carbon Produced from Cassava Peel
Abstract: Adsorption isotherm study of Activated Carbon produced from cassava peel was carried out using phenol solution as the adsorbate. Langmuir and Freundlich isotherm models were employed for the study. Varying ratios of 1:1, 0.75:1, 0.5:1, and 0.25:1 activating agent to cassava peel were used for the formulation of the Activated Carbon. The Freundlich R2 value for the 1:1, 0.75:1, 0.5:1, and 0.25:1 formulations was 0.822, 0.979, 0.971 and 0.974, respectively. …
Published in Journal of Materials & Metallurgical Engineering · Vol. 4, Issue 3, 2014 · pp. 8–12 Read article