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24 articles for “bulk resistivity”
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Specific Contact Resistance of CuxO Thin Films Deposited by r. f. Sputtering Method
Abstract: Normal 0 MicrosoftInternetExplorer4 This paper contains measurement of contact resistivity and bulk resistivity of CuxO (0<x<1) thin films deposited by r. f. sputtering method. The conditions for deposition of CuxO thin film were optimized by varying the r. f. power to vary the contact resistivity and bulk resistivity. Electrical characterizations were performed by Transmission Line Model (TLM) and Vertical Transmission Model (VTM) studies. The films deposited on glass substrate have …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 3, Issue 3, 2012 · pp. 10–16 Read article
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High-Performance Polymer Composite Membranes for Selective Ion Transport in Advanced Energy Conversion Systems
Abstract: The development of high-performance Polymer Composite Membranes (PCM) with enhanced ion transport is essential for Polymer Electrolyte Membrane Fuel Cells (PEMFC). However, low-humidity conditions and filter agglomeration still limit long-term membrane stability. This research designs a functionalized PCM integrating cross-linked Poly (Vinyl Alcohol)/Poly (Ethylene Glycol) (PVA/PEG) matrix with sulfonic acid functional groups and Titanium Dioxide (TiO₂) nanofillers to improve selective ion transport under low-humidity conditions. Two types of PCM were …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 724–736 Read article
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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
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Assessing the Influence of Aggregates and Cement Type on the Properties of Roller-compacted Concrete
Abstract: Roller-compacted concrete (RCC) pavement is suitable for heavy traffic and harsh environment. In the present investigation, RCC slab samples have been prepared using two types of aggregates (crushed and rounded), and two types of cement binder (ordinary Portland and sulphate resistant). Cubes and beam specimens have been extracted from the slab samples with the aid of diamond saw. Specimens were tested for bulk density, ultrasound pulse velocity, compressive and flexural …
Published in Trends in Transport Engineering and Applications · Vol. 8, Issue 4, 2021 Read article
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Assessing the influence of aggregates and cement type on the properties of roller compacted concrete
Abstract: Roller compacted concrete pavement is suitable for heavy traffic and harsh environment. In the present investigation, roller compacted concrete slab samples have been prepared using two types of aggregates, (crushed and rounded), and two types of cement binder, (ordinary Portland and sulphate resistant). Cubes and beam specimens have been extracted from the slab samples with the aid of diamond saw. Specimens were tested for bulk density, ultrasound pulse velocity, compressive …
Published in Trends in Transport Engineering and Applications · Vol. 8, Issue 2, 2021 · pp. 1–7 Read article
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A Review on Aerospace Materials and Metallurgy
Abstract: Aerospace metalworking is comparable to the foundation of both space travel and transportation. It involves the scientific design and application of metals and alloys to offer components with the strength required for flight and the ability to survive harsh environments. Although other alloys feature cobalt or iron as the main ingredient, nickel makes up most of alloys used in aeronautical applications. When exceptionally high strength is required in moderate-temperature settings, …
Published in International Journal of Mechanical Dynamics and Systems Analysis · Vol. 2, Issue 1, 2024 · pp. 21–26 Read article
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Mechanical Properties and Temperature distributionofHard Facingof SS-304 steelby using SAW
Abstract: Surface engineering is a multidiscipline activity aimed at tailoring the properties or surfaces of engineering materials to improve their function or service life. Mostly; as applied to metals, surface engineering includes processes; such as plating, diffusion treatment, physical and chemical vapor deposition, ion implantation, thermal spray coatings, selective hardening, hard facing, and a variety of less-used and proprietary processes. However; these processes will be described briefly and it will be …
Published in Journal of Automobile Engineering and Applications · Vol. 5, Issue 1, 2018 · pp. 18–29 Read article
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AI-Resistant Video CAPTCHA System
Abstract: CAPTCHA, which stands for Completely Automated Public Turing test to tell Computers and Humans Apart, is a tool that separates human users from automated bots. It is commonly used in web applications to stop bulk registrations, spam submissions, credential stuffing, and misuse of online services. Typically, CAPTCHAs involve recognizing distorted text, selecting images, or transcribing audio. These tasks are easy for people but challenging for automated programs. However, recent advances …
Published in Journal of Web Engineering & Technology · Vol. 13, Issue 2, 2026 · pp. 1–7 Read article
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An Assessment of Structural Safety of Cement Mortar Lined Irrigation Water Pipeline by Hydrostatic Test
Abstract: Structural safety of cement mortar-lined water pipeline is a matter of great concern primarily due to weld defects, fabrication deficiency and assessment of pressure shared by lining. The verification of structural design of such pipeline and assessment of safety is generally carried out by conducting prototype hydrostatic test. The present paper is based on one such type of study conducted by CWPRS, Pune, for Guthpha Lift Irrigation Scheme, Nizamabad, Andhra …
Published in Journal of Water Resource Engineering and Management · Vol. 1, Issue 1, 2014 · pp. 1–5 Read article
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Process and Applications of Nano Materials
Abstract: Nanomaterial’s describe, in principle, materials of which a single unit is sized (in at least one dimension) between 1 and 1000 nanometers (10−9 meter) but is usually 1–100 nm. Particles of “nano” size have been shown to exhibit enhanced or novel properties including reactivity, greater sensing capability and increased mechanical strength. In the last two decades, researchers began developing the ability to manipulate matter at the level of single atoms …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 23, Issue 2, 2021 · pp. 12–19 Read article
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On farm Evaluation and Demonstration of inter cropping Lablab with Maize in Zala and Derashe Special Districts, SNNPR
Abstract: Cultivating a combination of cereals and legumes is essential for establishing sustainable food production systems, especially in circumstances where there are constraints on external resources, uneven land distribution, and water scarcity. Incorporating various crops enables farmers to generate income even in situations where the main crop is affected or fails to produce the anticipated yield. Farmers in the study area plant this crop in their home gardens, field margins and …
Published in Research & Reviews : Journal of Botany · Vol. 12, Issue 3, 2023 · pp. 1–7 Read article
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Influence of Constant Micro Strain Levels on the Strength Properties of the Asphalt Concrete mixture
Abstract: Asphalt concrete mixture is designed to resist the deformation and vehicular traffic loading throughout its service life. However, when the asphalt concrete pavement practices over loading within the service life period, it exhibits cracking and rutting. In the present investigation, an attempt has been taken to understand the strength performance of asphalt concrete when practicing variable levels of constant stresses. Asphalt concrete mixture was prepared at optimum asphalt cement requirement …
Published in Trends in Transport Engineering and Applications · Vol. 10, Issue 3, 2023 · pp. 29–35 Read article
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Antibiotics – Challenges in our Post-COVID Era
Abstract: Accidental discovery of the antibiotic properties of penicillin marked a watershed moment in healthcare, transforming the landscape of medicine and saving countless lives of injured and infected. Further research and awareness on the advantages of this “miracle drug” resulted in its bulk production in the 1940s, and played a crucial role in saving lives of thousands during World War II. Subsequent discoveries especially broad-spectrum antibiotics paved the way for further …
Published in International Journal of Antibiotics · Vol. 1, Issue 2, 2024 · pp. 1–5 Read article
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Virtual Fabrication and Analog Performance of Sub-40nm Bulk MOSFET
Abstract: Virtual Fabrication of sub-40nm Bulk MOSFET is carried out under channel engineering and source drain engineering process. These structures enable more aggressive device scaling in nano-scale region because of their ability to control short channel effects. How ever during scaling the junction depth should also be scaled down, which increases parasitic resistance so silicidation technique has been applied to reduce their effects on device. Analog performance has been measured in …
Published in Journal of Electronic Design Technology · Vol. 1, Issue 1-3, 2011 · pp. 34–40 Read article
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Reduction of Hydrogen Embrittlement of HSLA Steel by Ion Implantation Surface Modification Technique
Abstract: There are many techniques available for the surface modification of the substrate. One of the important ion implantation techniques is plasma source ion implantation (PSII). Ion implantation is a vacuum process in which a beam of ions is directed to the surface and introduced into it. This technique produces minimum invasion of the bulk properties of the substrate. Nitrogen plasma ion implantation treatments were done on the substrate, Cu-strengthened HSLA …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 1, Issue 1, 2014 · pp. 20–33 Read article
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Cyclic Nanoindentation and Nano-scratch Behaviour of CaCO3/PMMA Nanocomposite
Abstract: The calcium carbonate surface modified with γ-methacryloxypropyltrimethoxysilane was carried out to prepare poly (methyl methacrylate) based composite. The grafting of PMMA increased as the weight ratio between MMA and n-CaCO3 increased, while the grafting efficiency of PMMA decreased. Transmission electron micrograph showed that MPTMS modified n-CaCO3 covered with PMMA was formed by emulsion polymerisation. The scratch resistance of n-CaCO3/PMMA nanocomposites are highly influenced by reinforcement’s type. The effects of n-CaCO3 …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 10, Issue 2, 2020 · pp. 25–36 Read article
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Experimental Setup for the Measurement of Low Temperature Seebeck Coefficient of Single Crystal and Bulk Materials
Abstract: A differential thermopower setup is fabricated for both the single crystal and bulk materials in the temperature range of 16–320 K. One advantage of this apparatus is that the sample separation can be changed according to the requirement between 2 and 5 mm. In this setup silver paint is used for the improvement of thermal and electrical conductivity between copper (thermocouple) leads and material. Seebeck coefficients are measured using a …
Published in Journal of Control & Instrumentation · Vol. 5, Issue 2, 2014 · pp. 25–30 Read article
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Structural and Electrical Characterization of Mn-Zn Substituted CaSr2: W-Type Hexaferrite
Abstract: AbstractIn the present investigation the samples with chemical composition CaSr2 (Mn-Zn)x/2Fe16- xO27 (x= 0.2, 0.4, 0.6, 0.8, 1.0) have been synthesized by using chemical co-precipitation method. X-ray diffraction (XRD) and transmission electron microscopy (TEM) were used to study structure, lattice constants, crystallites size, x-ray density, bulk density, porosity and shape of ferrite powders. The prepared samples were found to have W-type hexagonal structure with the lattice parameters a= (5.77 Å–5.82 …
Published in Research & Reviews : Journal of Physics · Vol. 5, Issue 1, 2016 · pp. 11–17 Read article
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Nanotechnology and its Potential in the Future
Abstract: Nanotechnology is the study of extremely small structures. The prefix “Nano” is derived from the Greek word “nanos” meaning ‘DWARF’ (Small). The beauty of nanotechnology is its ability to make things smaller, so they have more impact on our lives. Nanotechnology deals with materials in the size of 0.1 to 100 nm. One nanometer is one billionth of a meter (10–9 m or 10–7 cm), about 100 thousand times smaller …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 12, Issue 1, 2022 · pp. 17–27 Read article
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Challenges and Remedies for Stray Loss Prediction and Reduction for Power Transformer
Abstract: Power transformer facilitates the bulk power transmission for long distance. Cost wise it is one of the costliest objects of power system. This is the reason; their design has been a major concern and the subject of extended research. Nowadays customers are asking for highly efficient transformers in lower cost. That means, continual improvements, analyses and innovative techniques have to be adopted by designers and manufacturers. The stray loss analysis …
Published in Current Trends in Signal Processing · Vol. 6, Issue 1, 2016 · pp. 25–34 Read article