Search
1890 articles for “observation”
-
Antibacterial Surfaces: A Comprehensive Review
Abstract: Microbial communities adhere to surfaces and colonize themselves. Challenges such as microbial infections are, especially, observed on the surface associated with various medical products. In this review, the authors made efforts to maintain the balance of clarity among different types of antibacterial surfaces that exhibit anti-biofouling or bactericidal or both with the help of present advancements. Besides, this review paper categorised different approaches to modify the surface to antibacterial surfaces …
Published in Journal of Polymer & Composites · Vol. 8, Issue 3, 2020 · pp. 92–99 Read article
-
Role of GO and rGO on the Structural Properties of PA6/PMMA Blend Nanocomposites
Abstract: To understand and assess the role of Graphene Oxide (GO) and reduced graphene oxide (rGO) in the PA6/PMMA blend, nanocomposites, the PA6/PMMA (50:50 wt%) blend-based nanocomposites were prepare by loading different wt% of GO and rGO (1wt% and 3wt%), through twin screw melt extrusion followed by injection moulding technique. Different compositions of the nanocomposites were prepared using melt mixed method at 2300C by applying a rotational torque 50 N. All …
Published in Journal of Polymer & Composites · Vol. 10, Issue 1, 2022 · pp. 1–10 Read article
-
Effect of ZrO2 nanoparticles on Electrical conductivity of PVA/PVP polymer blend doped with ammonium iodide
Abstract: This work reports the properties of solid polymer electrolyte films obtained via incorporating varying amounts of ZrO2 nanoparticles into the PVA/PVP polymer blend with ammonium iodide salt. Material synthesis was done by the solution casting technique. Frequency dependent impedance and conductivity parameters of polymer electrolyte films were investigated at different temperatures (303K-353K) using impedance spectroscopy. The results of ionic conductivity of prepared polymer blend samples at various temperatures were studied …
Published in Journal of Polymer & Composites · Vol. 10, Issue 3, 2022 · pp. 85–94 Read article
-
Design of a Wireless Protection Scheme for Smart-Grid-Based Industrial Systems
Abstract: This paper illustrates the design of an alternative current measuring method which can be used for the protection of electrical machines, especially generators and motors, used in oil and gas industry. A comparison is made between the use of Hall effect sensors and current transformers for fault current detection. Also, different wireless communication methods that can be used in accordance with Hall effect sensors for detecting faulty conditions are discussed. …
Published in Journal of Power Electronics and Power Systems · Vol. 7, Issue 3, 2017 · pp. 30–37 Read article
-
Optimal Placement and Location of Phasor Measurement Unit Considering Bus Voltage Using Genetic Algorithm
Abstract: This paper presents a procedure by which new PMU locations can be symmetrically determined in order to render an observable system. Monitoring and supervision of power systems are provided by the control centre, whose role is the design, coordination and network management. In this paper, an attempt has been made to control technique based on the implantation of measurement units at the network buses. A proposed methodology makes the system …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 2, 2016 · pp. 74–84 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
-
An Overview of Poroperm Relationship in the Recognition of Heterogeneity in Petroleum Reservoirs
Abstract: Reservoir heterogeneity is comprehended on different scales based on vertical and lateral variations in the hydrocarbon bearing sedimentary sequences. The two depositional systems, Sand-shale and carbonate with complex patterns based on properties of rocks help in deciding quality of rocks, the most important being the porosity permeability relationship. The intricate relationship of these two parameters if discussed in connection with sampling depth gives better understanding of variations in vertical direction …
Published in Journal of Petroleum Engineering & Technology · Vol. 11, Issue 1, 2021 · pp. 17–42 Read article
-
Experimental and Modeling Study of Companion Flange
Abstract: Performance of flange is characterized by its strength. A number of analytical and experimental studies have been conducted to study this characteristic of flange in pipeline under internal pressure loading. Very few researchers have studied the companion flange which is used in assembly of Universal Drive shaft. A companion flanges can be supplied as an individual component or as assemblies with universal drive shafts. It allows connection of a flange …
Published in Journal of Production Research & Management · Vol. 8, Issue 1, 2018 · pp. 29–36 Read article
-
Conversion of Textile Waste Yarns to Candle Product by Designing Simple Candle Producing Machine
Abstract: During the production of yarn in textile industry, there is high waste generation due to different reasons. These wastes are used for the production of candle and tapper product. In order to be competitive with companies performing similar operation, it requires changing this waste into some product. Since there is no other sector, which produces candle from waste yarn in Ethiopia, and candles are currently imported, which increases the product …
Published in Journal of Production Research & Management · Vol. 9, Issue 3, 2019 · pp. 9–14 Read article
-
Photochemical Studies of Photosensitive Compound in DSS Cell
Abstract: Solar energy is our earth’s primary source of renewable energy. It is one of the most resourceful sources of energy for the future. A technique for converting solar energy into electrical energy via formation of energy rich species that exhibit the photo-solar effect is known as DSS cell. Therefore, the present study of DSS cell of Carbol Fuchsin (PC) with efficiency enhancer chemicals such as TEA reductant in alkaline media …
Published in Journal of Semiconductor Devices and Circuits · Vol. 4, Issue 3, 2017 · pp. 21–29 Read article
-
Design and Analysis of Hybrid System using Fuzzy Logic Controller
Abstract: The overall system is controlled by fuzzy logics. Load power consumes the power in sequence to solar power, wind power and the battery system power. Accordingly power delivered to the load. In the proposed framework, power is overseen or constrained by fluffy rationale regulators. The exhibition enhancement of half breed framework is examinations with sunlight based PV boards, wind turbine and the battery frameworks. The overall model & controlling strategies …
Published in Journal of Semiconductor Devices and Circuits · Vol. 8, Issue 2, 2021 · pp. 21–27 Read article
-
Fractural Mechanics Crack Propagational Study on Different Material And Different Crack Location of weld joint in ANSYS
Abstract: AbstractThere have been spectacular failures made of ductile material. The structure as whole will remain as brittle only until the load is applied it will have elastic response it will not have plastic response. But near the crack tip there will have plastic zone and plastic zone indicates flow crack is going to behave for the present study analysis is carried out on crack near weld joint and three different …
Published in Journal of Structural Engineering and Management · Vol. 5, Issue 3, 2018 · pp. 29–33 Read article
-
Analysis of Two way Continuous Bridge under Moving Loads
Abstract: The analysis of dynamic behavior of bridge structures that are subjected to moving loads has been one of the research interests in recent years. Specifically in railway bridges, Resonance occurs when the load frequency is equal to a multiple of natural frequency of the structure. Resonance vibrations have been observed in railway bridges especially subjected to High Speed Lines. They are caused mainly because of two reasons one is the …
Published in Journal of Structural Engineering and Management · Vol. 6, Issue 2, 2019 · pp. 7–12 Read article
-
Dynamic Analysis of Railway track and SSI effect
Abstract: The analysis of dynamic behavior of bridge structures that are subjected to moving loads has been one of the research interests in recent years. Specifically in railway bridges, Resonance occurs when the load frequency is equal to a multiple of natural frequency of the structure. Resonance vibrations have been observed in railway bridges especially subjected to High Speed Lines. They are caused mainly because of two reasons one is the …
Published in Journal of Structural Engineering and Management · Vol. 6, Issue 1, 2019 · pp. 37–41 Read article
-
Effect of Partial Fixity on Negative Bending Moments in RCC Frames
Abstract: This paper presents the variation of bending moments in the RCC frames structure for different ratios of moment of inertia of the column and the beam (IC/IB). In this study, three different cases of frames structure are considered e.g. the first case is single bay single storey to single bay five storied frames structure, the second case is two bays single storey to two bays five storied frames structure and …
Published in Journal of Structural Engineering and Management · Vol. 4, Issue 1, 2017 · pp. 73–80 Read article
-
Synthesis and Characterization of In2S3 Nanoflake Thin Film for Photosensor Applications
Abstract: Indium sulphide (In2S3) thin films in the form of nanoflakes are synthesized by using chemical vapour deposition method on glass substrate with the intension to test its photosensor applications. These as deposited nanoflake thin films are characterized for physicochemical properties using X-ray diffraction (XRD) pattern, energy dispersive X-ray (EDAX) analysis,scanning electron microscopy (SEM) while optoelectronic properties were studied using optical and electrical characteristics obtained through UV-Vis transmission spectroscopy and I-V …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 4, Issue 3, 2017 · pp. 21–26 Read article
-
Combined Effect of Welding Speed and Tool Pin Profiles on Tensile properties of FSWAA6061-T6 Joint
Abstract: Friction stir welding is a solid state welding process for joining two similar and dissimilar materials, in which non-consumable tool with rotary motion along with transverse motion with intimate contact to weld coupon generates sound joint. In this study, tool rotation speed, tool travel speed and tool pin profile are taken to know their effect on mechanical properties of AA6061-T6. The main objective for this research is to evaluate the …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 4, Issue 1, 2017 · pp. 24–31 Read article
-
Twin Roll Casting of Aluminum Alloy AC7A
Abstract: Twin roll casting process is able to produce a strip from molten metal directly. Thus this process has a possibility to reduce total cost of sheet making comparing to conventional rolling process. Strip casting process has some disadvantages. Casting speed depends on the material properties. It is difficult to determine the casting conditions. Twin roll casting of aluminum alloy AC7A using commercial scale machine was operated. The aims of this …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 7, Issue 2, 2020 · pp. 30–36 Read article
-
A Study of the Effect of Sodium Hydroxide and Sodium Lauryl Sulfate Surface Treatments on Natural Fibers
Abstract: Due to its accessibility, environmental friendliness, renewability, CO2-neutrality, flexibility, low density, and low cost, natural fibre (NF) can have a significant impact on the area of fibre reinforced polymer composite (FRPC) as a reinforcing material. Banana fiber (BF)/calotropis gigantea fiber (CGF) could be a potential candidate for synthetic FRPC replacement. Plant derive banana and calotropis gigantea fibers are valuable NFs that are abundantly available in Bangladesh. The purpose of this …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 9, Issue 2, 2022 · pp. 1–11 Read article
-
Simulation Study of Tapered Shape FinFET
Abstract: During recent years, nonplaner tri-gate (TG) field-effect transistors (FETs) such as FinFETs have been extensively studied for the enhancement of electrostatic control and suppression of short-channel effects (SCEs) in the sub50 nm regime. As the device scaled, it is observed that the shape of the rectangular FinFET becomes tapered shape. This paper presents the design and analysis of a tapered-shaped FinFET. By varying the sidewall inclination angle of a rectangular …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 1, 2016 · pp. 21–31 Read article