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1951 articles for “and yielded a damage-estimation R² of 0.946” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Bio-ethanol Production and Heavy Metal Lead (Pb) Removal Using Macro Algae Wolffia
Abstract: This study was aimed to evaluate the potential of using macro algae Wolffia for bio-ethanol production and for heavy metal Lead (Pb) biosorption. Macro algae Wolffia was collected locally from a pond. Pretreatment was given by using 1 and 10% sulphuric acid (H2SO4) to different batches of Wolffia. Fehling’s test was performed to check the presence of sugar. For the fermentation step Saccharomyces cerevisiae strain was used. Yield obtained using …
Published in Journal of Catalyst & Catalysis · Vol. 2, Issue 3, 2015 · pp. 23–39 Read article
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Performance Evaluation of H 2 SO 4 -Rice Husk-Moss Adsorbent for the Removal of Zn (II) Ion from the Effluent of Science Equipment Development Institute (SEDI)
Abstract: This research was carried out to investigate the potential of green algae (moss) with the support of H 2 SO 4 treated rice husk activated carbon using batch adsorption process for the removal of Zn (II) ions from SEDI industrial effluent. The rice husk- moss algae was activated using H 2 SO 4 . The effluent was characterized using atomic absorption spectrophotometer with initial concentration values of 12.3 mg/l for …
Published in Journal of Catalyst & Catalysis · Vol. 9, Issue 1, 2022 · pp. 6–15 Read article
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Factors Affecting Building Construction Tendering Costs: Studies of Saudi Arabia
Abstract: AbstractThis study is conducted to assess and rank factors affecting cost at the pre-tender stage for building construction projects in Saudi Arabia. 43 factors affecting opponent cost estimate were identified through literature review and discussion with some construction specialists. The factors were tabulated in a questionnaire form and a questionnaire survey including 32 consultants and 21 owners was performed. The study finds a strong agreement between owners and consultants in …
Published in Journal of Construction Engineering, Technology & Management · Vol. 8, Issue 1, 2018 · pp. 26–33 Read article
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Geotechnical Assessment and Stabilisation of Lateritic Soils in Tarkwa Using Rice Husk Ash for Road Construction Purpose
Abstract: The cost effectiveness of upgrading gravel roads to a sealed standard has challenged road authorities to make optimum use of naturally occurring materials such as laterites as sub-base and base materials. Untreated laterites have presented problems such as pavement swelling and depression in road construction. This research seeks to assess and stabilise the geotechnical properties of some lateritic soils in Tarkwa using Rice Husk Ash for road construction purposes. Lateritic …
Published in Journal of Construction Engineering, Technology & Management · Vol. 9, Issue 1, 2019 · pp. 6–16 Read article
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Performance of Polyster Fibre Reinforced Concrete
Abstract: The present work deals with the results of experimental investigations on Recron 3s Polyester fibre reinforced concrete. Effect of these fibres on various strengths of concrete are studied. Firstly 0.1% fiber content is used and after that varied from 0.2 to 1.8% at an interval of 0.2% by weight of cement. Various strengths considered for investigation are compressive strength, flexural strength, split tensile, bond strength and shear strength. Cube of …
Published in Journal of Construction Engineering, Technology & Management · Vol. 9, Issue 2, 2019 · pp. 37–46 Read article
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Study of Nano Additives in Concrete mix Proportioning Using Nano Particle
Abstract: This research literature reviews on nanomaterials in concrete. Now, the conventional concrete Properties of nanomaterial utilization have been introduced to various attentions to increase. Ultimately, as an introduction, the nanomaterial is increasing the strength and durability of the Concrete. The nanomaterial is described as the material that includes the particle size Less than 200 nm. While the investigation of Concrete in the importance of nanomaterials, the demand is at least …
Published in Journal of Construction Engineering, Technology & Management · Vol. 10, Issue 1, 2020 · pp. 37–48 Read article
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Performance based seismic design of reinforced concrete asymmetrical building
Abstract: The nonlinear static analysis of asymmetrical G+20 reinforced concrete building is carried out using design tool. Nowadays, in most of the RCC framed buildings irregularities are commonly observed. Buildings needing simple regular geometry suffer much less damage than buildings with irregular configuration. The poor performance and structural damages in an irregular building type of structures during the frequent earthquakes increased the need to determine and evaluate the damages in the …
Published in Journal of Construction Engineering, Technology & Management · Vol. 10, Issue 1, 2020 · pp. 29–36 Read article
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Influence of Mineral Admixture on Compressive Strength of Concrete
Abstract: The current paper shows the results of an investigation focused on the effect of metakaoline (MK) and silica fume (SF) on the compressive strength of concrete. The aim of the study was to investigate the effect of concrete compressive strength containing different percentage levels of metakaoline and silica fume on fresh and mechanical properties of the concrete. Pastes containing 0%, 5%, 10%, 15% and 20% of metakaoline and silica fume …
Published in Journal of Construction Engineering, Technology & Management · Vol. 2, Issue 1-3, 2012 · pp. 42–47 Read article
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Optimum Mixture Proportioning of Sawdust Ash Blended Sand-Stone Dust Blocks Using Scheffe’s Regression Theory
Abstract: This study carried out an experimental investigation on the compressive strength of sawdust ash blended sand-stone dust block of size 450 x 225 x 150 mm using Scheffe’s (5, 2) regression theory. The compressive strength of sawdust ash blended sand-stone dust blocks obtained based on fifteen trial mix ratios were used to develop the mathematical model while the results of the compressive strength values obtained based on the additional fifteen …
Published in Journal of Construction Engineering, Technology & Management · Vol. 13, Issue 2, 2023 · pp. 33–40 Read article
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CHARACTERIZATION OF STRENGTH OF ALUMINUM (Al 6063-T6) AFTER CORROSION
Abstract: Aluminum are frequently used as light weight structure in various nautical design. One of them is the ship structure design where sever environment of saline water influences the damage of the structure and one among them is pitting. In this paper, an experimental verification of strength and impact of corrosion effect on Al-6063 – T6 aluminum was presented. The specimens were exposed to saline water for various duration like 500hrs, …
Published in Journal of Experimental & Applied Mechanics · Vol. 12, Issue 3, 2021 · pp. 48–61 Read article
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Design and Analysis of Bootstrap Sample and Hold Circuit
Abstract: This paper describes the design and implementation of open-loop sample and hold-circuit using bootstrap technique, which can be used as front end sampling circuit for high-speed analog-to-digital converters. Different design criteria, viz., speed, power, resolution, linearity, noise and harmonic analysis have been dealt with. Both theoretical analysis and simulation results are carried out. The bootstrap circuit is designed and then compared in a 0.18 and 0.35 μm CMOS process. It …
Published in Journal of Electronic Design Technology · Vol. 5, Issue 3, 2014 · pp. 7–14 Read article
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Evaluation of Diesel Engine Performance Using Neem Oil Methyl Esters and Biogas as an Alternative Source
Abstract: AbstractThe Neem oil methyl ester (NOME) used as a biofuel is produced by transestetrification process with an aim to reduce the viscosity level, fuel economy and less environmental pollution. Further, addition of biogas to the NOME is expected to improve the performance. The objective of study was to evaluate the performance parameters such as Total fuel consumption (TFC), Specific fuel consumption (SFC) and Brake thermal efficiency (BTE). The experiment was …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 8, Issue 1, 2018 · pp. 21–25 Read article
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Effect of Layering of Reinforcement on Bearing Capacity of Shallow Footing Resting on Sand
Abstract: The study was done to investigate the performance of reinforced soil foundation. The construction of reinforced soil foundation has a cost effective alternative to conventional methods. Performance characteristics were improved by using one or more layers of non-woven geotextile placed beneath the footing to create a composite material. The reinforcement in the soil interacts with the soil and is resisted by friction, adhesion or passive / bearing capacity. To study …
Published in Journal of Geotechnical Engineering · Vol. 5, Issue 2, 2018 · pp. 15–19 Read article
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A methodology for the determination of bearing capacity of granular soils with plate loading tests
Abstract: In granular soils, due to the inability to collect undisturbed samples of soil for geotechnical laboratory tests or the impracticality of carrying out dynamic penetration tests, highlights the necessity to find a useful approach in the engineering geological practice for the determination of bearing capacity. In these soils the determination of bearing capacity can be evaluated with several formula that necessary require the estimation of the friction angle: this leads …
Published in Journal of Geotechnical Engineering · Vol. 7, Issue 1, 2020 · pp. 1–8 Read article
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Corrosion Behavior of Welded Austenitic Stainless Steel in Different Environments
Abstract: Corrosion behavior of welded austenitic stainless steel in 0.5 M hydrochloric acid and wet-steam corrosive media has been studied. The immersion time in the corrosive media was 30 days to simulate the effect on stainless steel structures/equipment in offshore and food processing applications. Annealing heat treatment was carried out on the samples. The gravimetric technique was used for the corrosion tests. Seawater sample has highest weight loss of 4.0 mg …
Published in Journal of Industrial Safety Engineering · Vol. 1, Issue 3, 2014 · pp. 18–30 Read article
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Reducing the Uncertainty of Marine Accidents Failure Rate in Harsh Environment; Using Bayesian Theory
Abstract: The interest in arctic activities is strong, but has not led to significant quantifying analysis over the fact of finding rescannable failure rate. To attract investors and promote the development of a marine industry, a clear concept of project risk is paramount; in particular, issues relating to human role in operation are critical. In the public domain, reliability of information is often scarce or inappropriate for such environment. Also, an …
Published in Journal of Industrial Safety Engineering · Vol. 3, Issue 2, 2016 · pp. 30–39 Read article
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Assessing and Ranking Health, Safety and Environmental Risks Through Analytical Network Process (ANP) Method in Cement Plant in 2020
Abstract: In today's competitive world, decision-making and management are based on risk assessment.Accordingly, the present study deals with assessing and managing the risks of Health, Safetyand Environment (HSE) aspects in cement factory through combining three widely usedmethods including FMEA, William and Fine, and EFMEA to determine and estimate the levelof risk, and to control and mitigate this risk using analytical network process (ANP) method.In this research, three ANP models were used …
Published in Journal of Industrial Safety Engineering · Vol. 7, Issue 3, 2020 · pp. 23–35 Read article
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Nanostructured Cr-WS2 Solid Lubricant Coating for Space Applications
Abstract: Abstract Tungsten disulphide (WS2) is one of the widely used intrinsic low friction materials, which is commonly used in the form of coating. WS2 offers very low coefficient of friction only in non humid conditions. Presence of humidity destroys this property and restricts its utility. Modifying the structure of WS2 by adding certain metals helps in overcoming this limitation and in addition improves the mechanical properties. Further, deposition technique and …
Published in Journal of Instrumentation Technology & Innovations · Vol. 9, Issue 1, 2019 · pp. 12–18 Read article
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Performance Analysis of Induction Motor using DTC Technique
Abstract: AbstractDirect Torque Control is a control method used for high-performance torque control in AC drive systems. The standard DTC drive includes a couple of hysteresis comparators, a flux and torque estimator and a selection table for voltage vectors. Torque and flux are governed simultaneously by implementing appropriate voltage vectors, and de-coupling control of torque and flux can be accomplished by restricting these amounts within their hysteresis bands. The DTC requires …
Published in Journal of Instrumentation Technology & Innovations · Vol. 9, Issue 2, 2019 · pp. 11–18 Read article
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Advancement and Experimental Investigation of Voice Coil Actuator utilizing Flexural Bearing
Abstract: Flexural components are very ideal over regular inflexible body systems where exceptionally exact and exact movement is vital in the scope of microns. To accomplish spotless and exact movement, we propose another outline of voice loop actuator. Fitting loop and magnet is chosen viewing the most extreme power as connected. Computer aided design demonstrate is readied and limited component examination (FEA) is done to decide the solidness. Voice coil engine …
Published in Journal of Mechatronics and Automation · Vol. 5, Issue 2, 2018 · pp. 40–45 Read article