Search
1980 articles for “soil fertility enhancement using nanomaterials” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
Nothing matched all of your words, so these match any of them.
-
Synthesis of Poly(Methyl Methacrylate) Latex Using Batch Emulsion Polymerization Reactor: Experimental and Simulation Study
Abstract: AbstractThe rationale for the present study was to develop Poly(methyl methacrylate) polymer latex, using free radical emulsion polymerization mechanism, in which water acted as the continuous aqueous phase, methyl methacrylate monomer as the dispersed phase, potassium persulfate (KPS) as an initiator and sodium dodecyl sulfate (SDS) as the stabilizing agent. PMMA is a versatile thermoplastic resin, used widely because of its excellent performance in optical and medical field. The characterization …
Published in Journal of Polymer & Composites · Vol. 4, Issue 1, 2016 · pp. 37–44 Read article
-
Characteristics of Novel Geopolymer Composites Synthesized from Red Mud and Diatomaceous Earth in Autoclave Conditions without Using Alkaline Activators
Abstract: The geopolymer-based materials have been studied and developed since the last decades of the 20th century and applied in many fields of life. The production of geopolymer also has many different levels of technology from low to high technology which depends on quality and the applied fields of products. The geopolymer composites are also considered as friendly environmentally products related to low energy consumption production technology; reuse industrial wastes as …
Published in Journal of Polymer & Composites · Vol. 8, Issue 3, 2020 · pp. 81–91 Read article
-
Dispersion Analysis of Polypyrrole and ZnO Nanocomposite Thin Film using SPR Techniques
Abstract: The dispersion analysis of any material is crucial for studying its structure and composition. The interaction of the structure of the material with electromagnetic energy is also determined by studying its dielectric or optical properties. For studying dielectric properties, optical approaches are favored over electrical techniques, and Surface Plasmon Resonance (SPR) is the most suited of all techniques. It is used as a result to investigate the optical and dielectric …
Published in Journal of Polymer & Composites · Vol. 10, Issue 2, 2022 · pp. 79–85 Read article
-
Prediction of Process Parameters of Friction Stir Welding Using Artificial Neural Network
Abstract: In this paper an artificial neural network (ANN) approach is used to predict the process parameters of friction stir welding (FSW). Initially, the experiments are conducted using the design of experiment (DoE) approach on FSW using L27 orthogonal array. The experiments are conducted using speed, feed, and tool tilt angle as input parameters for DoE and tensile strength, hardness, and ductility as output. ANN is created having 25 neurons and …
Published in Journal of Polymer & Composites · Vol. 11, Issue 3, 2023 · pp. 13–25 Read article
-
Minimization of Steady State Error of DC Motor Drive Using PID Controller
Abstract: As it is the time of advanced technology, machinery implementation is increasing very rapidly. Industries always work with the implemented technology which gives the fast and accurate response of the system. This paper includes the dc motor speed controlling using the PID controller. Close loop control system and electrical drives have the advantageous system for the technology. DC motor is used for getting best and easiest speed and torque control …
Published in Journal of Power Electronics and Power Systems · Vol. 8, Issue 2, 2018 · pp. 25–29 Read article
-
Comparison of Speed Control of PMSM using Adaptive Fuzzy Logic Controller and PI Controller
Abstract: Permanent Magnet Synchronous Motors (PMSM) are widely used in low and mid power applications such as computer peripheral equipment, robotics, adjustable speed drives and electric vehicles. The growth in the market of permanent magnet motor drives has demanded the need of simulation tools capable of handling motor drive simulations. Simulations have helped the process of developing new systems including motor drives, by reducing cost and time. In a closed loop …
Published in Journal of Power Electronics and Power Systems · Vol. 8, Issue 3, 2018 · pp. 24–30 Read article
-
Closed Loop Control of Multi Level Inverter Tied with 415 V AC Source Using SV-PWM for Renewable Energy
Abstract: In this work, 415 V AC source is interfaced with three-level diode clamped inverter in which renewable energy source is used as a DC source, solar energy is used which is most popular renewable energy source. The obtained DC from the solar irradiation is fed to MPPT (Maximum Power Point Tracking) to utilize voltage at maximum power (DC). The perturb and observe technique is used in this work to track …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 1, 2016 · pp. 55–65 Read article
-
Direct Torque Control Based on Discrete-Time PI Controller of an SVPWM Inverter Fed Induction Motor Using Energy Model
Abstract: A direct torque control (DTC) of an induction motor (IM) with constant switching frequency has been presented in this work which is performed using space-vector modulation (SVM). The developed DTC scheme is based on the discrete-time PI controller strategy and this has been used to achieve direct control of torque of IM. To design the discrete-time PI (DTPI) controller the energy model of induction motor is simplified at the beginning …
Published in Journal of Power Electronics and Power Systems · Vol. 2, Issue 2, 2012 · pp. 45–55 Read article
-
A Novel Improved Model of Three-phase Shunt Active Power Filter using Adaptive Tabu Search and Genetic Algorithm in Aircraft Power Utility of 400 Hz
Abstract: A new improved model of aircraft shunt filter has been proposed in this paper. The shunt active power filter model has been improved using Adaptive Tabu Search Algorithm and Genetic Algorithm. ATS algorithm has been used to obtain the optimum value of parameters of the PI controller; whereas Genetic Algorithm has been used to find the optimum value of filter inductor used in active filter. The new improved model of …
Published in Journal of Power Electronics and Power Systems · Vol. 3, Issue 3, 2013 · pp. 6–14 Read article
-
Comparative Study of Boost, Elementary LUO and Super Lift LUO Converters for MPPT Photovoltaic Using P and O and Inc Methods
Abstract: The current Power demand of both industrial and domestic sectors forcing them to shift from traditional power sources to the green sources like Solar and Wind. Distributed Generation systems using solar and wind have multi-fold benefits compared to the traditional power generation. The Electrical power drawn from these renewables sources using MPPT methods such as Perturb & Observe (P&O), and Incremental Conductance (INC) methods are examined in this paper for …
Published in Journal of Power Electronics and Power Systems · Vol. 12, Issue 3, 2022 · pp. 26–43 Read article
-
Productivity of Hydraulically Fractured Calcite Rich Shale Reservoirs Enhanced by Acid
Abstract: The current low oil prices have highlighted the need for enhancement to current production from shale formations. Prolonging the production life and increasing productivity of the fracture network in the shale plays can be a way to improve the economics. Many shale wells, drilled and completed based on current completion strategies, show sharp decline after initial flash production. One of the reasons behind this can be attributed to closure of …
Published in Journal of Petroleum Engineering & Technology · Vol. 6, Issue 1, 2016 · pp. 54–68 Read article
-
Mud Acid Effect on Fines Migration Problem Using a Newly Developed Al/Zr-Based Clay Stabilizer (A): Mitigation Can Happen
Abstract: Sandstone reservoirs exhibit severe fines migration problems subsequent to conventional mud acid (HCl: HF) treatments. The acid treatment proved to be effective for a relatively short period of time, with a sudden production decline owing to either that mud acid spent rapidly in close proximity to the wellbore, causing clays to migrate into the acidized area and re-plug the formation; or that the mud acid system actually weakens the structure …
Published in Journal of Petroleum Engineering & Technology · Vol. 5, Issue 3, 2015 · pp. 11–29 Read article
-
Development of Intermittent Gas Lift Optimum Time Module Using Automatic Pneumatic System
Abstract: Artificial lift technique is used to bring hydrocarbons to the surface when they cannot come to the surface on their own. Gas lift is an artificial lift technique which is classified into continuous and intermittent gas lifts. Continuous gas lift is used when the hydrocarbon fills into the wellbore continuously but is not able to come to the surface while intermittent gas lift is used when the fluid flow into …
Published in Journal of Petroleum Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 40–50 Read article
-
Feasibility Study of using Electric Down-hole Heating to Improve the Productivity for a Heavy Oil Field
Abstract: The largest hydrocarbon reserves around the world are mostly heavy oils. Electrical Down-hole Heating (EDH) is a widely used technique for heavy oil production; when it is combined with Enhanced Oil Recovery (EOR) methods, it can overcome its limitations. Considering limited previous studies for the designing of EDH for Sudanese fields, this paper presented the feasibility of using this system by simulating the actual well situation and provided several scenarios …
Published in Journal of Petroleum Engineering & Technology · Vol. 11, Issue 1, 2021 · pp. 52–68 Read article
-
Study of Crude Oil Degradation Using Bio-stimulant: The Concept of Remediation Application
Abstract: The Total Petroleum Hydrocarbon (TPH) degradation was monitored in a batch reactor with the addition of bio-stimulants of palm oil processed waste water (POPWW) and NPK fertilizer in contaminated clay soil medium. The comparative study on the performance of both bio-simulants revealed that the NPK fertilizer was more effective than the palm oil processed waste water (POPWW). This study is based on the overview on the degradation of petroleum hydrocarbon …
Published in Journal of Petroleum Engineering & Technology · Vol. 13, Issue 2, 2023 · pp. 13–23 Read article
-
Experimental Investigation of Process Parameters While Milling of AA8011 Using MCDM/MADM Method-TOPSIS
Abstract: This paper presents in-depth and comprehensive approach for optimizing the machining parameters in milling of wrought alloy AA8011 using a MCDM/MADM method called TOPSIS. The present work is carried out in three phases; in the first phase the orthogonal array L27 design is prepared using Minitab software by considering various milling parameters such as speed, feed and depth of cut at three different levels. In the second phase, milling operations …
Published in Journal of Production Research & Management · Vol. 8, Issue 2, 2018 · pp. 1–7 Read article
-
HVAC Design by Using Green Building Norms
Abstract: An HVAC system can be describing as a system which removes the heat from a desired space by pumping the heat from one place to another which result a cooling effect, also by lowering the temperature. HVAC work for a good indoor air quality by using latest filtering technologies. The major components of the HVAC system are, Heat exchanger, Evaporator coil, Thermostat, Refrigerant lines, Condensing unit, drain piping system, electrical …
Published in Journal of Production Research & Management · Vol. 11, Issue 3, 2021 · pp. 1–10 Read article
-
Structural Analysis of Clapper Block Swivel Plate Using Fusion 360
Abstract: In this research, a finite element routine was used to calculate the static displacements and stresses in the clapper block swivel plate under maximum loadings, which were then used for critical point evaluation. Fatigue analysis and longevity were assessed through the use of Fusion 360 software. The need to predict how a product will reach over its life cycle has grown over the years. Metal and other industries must demonstrate …
Published in Journal of Production Research & Management · Vol. 12, Issue 1, 2022 · pp. 27–34 Read article
-
Chromatic Dispersion Compensation in Optical Fiber Communication System using FBG and EDFA
Abstract: AbstractNowadays optical communication is a most significant technique to transmit the data. In daily life we share our useful data by using optical network but dispersion is the main factor towards limiting the performance of optical system. However, the compensation of dispersion by Dispersion Compensating Fiber (DCF) and Fiber Bragg Grating (FBG) can boost significantly the system. This proposed work investigates and analyze the chromatic dispersion compensation in optical fiber …
Published in Journal of Semiconductor Devices and Circuits · Vol. 6, Issue 3, 2019 · pp. 1–7 Read article
-
Speed Control Using AT89c51 with High Accuracy
Abstract: The aim of developing this project is to control the speed of DC motor. The main advantage in using a DC motor is that the speed-torque relationship can be varied to almost any useful form. To achieve the speed control an electronic technique called pulse width modulation is used which generates high and low pulses. These pulses vary the speed in the motor. For the generation of these pulses, a …
Published in Journal of Semiconductor Devices and Circuits · Vol. 2, Issue 2, 2015 · pp. 28–35 Read article