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1929 articles for “8-10nm size” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Analysis of Friction Stir Welded Aluminum Alloys 2014 and 8011
Abstract: In this work we investigated friction stir welding of Aluminum Alloy 2014, Aluminum Alloy 8011. The major defects occurring while friction stir welding are tunnel effect, poor tensile strength, uneven material flow. The main causes for these defects are improper selection of welding parameters. The major welding parameters considered in Friction stir welding are spindle rotational speed (rpm), tool travel speed (mm/min) and tool angle (degree).In this work steps are …
Published in Journal of Materials & Metallurgical Engineering · Vol. 5, Issue 1, 2015 · pp. 12–17 Read article
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FPGA Implementation of Variable Step Size Adaptive Filters for Signal De-noising
Abstract: This paper presents the design and implementation of a variable step size 40 order adaptive filter for de-noising acoustic signals. Four different adaptive filters (LMS, Sign-Data, Sign-Error and Sign-Sign) were designed using three different structures, viz., direct form, transposed and the proposed structure and their de-nosing performance was compared. Further, the filters were implemented on three different Field programmable gate arrays (FPGAs), viz., Spartan 6, Virtex 6 and Viretx 7 …
Published in Journal of Semiconductor Devices and Circuits · Vol. 1, Issue 3, 2014 · pp. 7–19 Read article
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Design, Implementation and Comparative Analysis of Different 8-Bit Multipliers Based on Power, Delay and Hardware Utilization
Abstract: Multipliers play important role in the digital VLSI design. Computational Speed, power consumption, and area are the major parameters on which the performance of the device depends. In digital design, there are different multiplication methods or algorithms. Each algorithm is having its own advantage and disadvantage. In this paper, implementation of five different types of 8-bit multipliers namely Array multiplier, Booth multiplier, Truncated multiplier, Pipelined multiplier, and Vedic multiplier has …
Published in Journal of VLSI Design Tools and Technology · Vol. 10, Issue 3, 2020 · pp. 22–34 Read article
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Performance Analysis of 802.11 MAC Protocol of Wireless Networks under Misbehaving Condition
Abstract: ABSTRACT In this paper the performance of Mac Layer is seen when the number of nodes which are misbehaving increases in the wireless networks. Mobile ad hoc networks depends on the network nodes cooperation in forwarding packets due to the lack of centralized authority. A network node may incline not to cooperate with other nodes in order to save its resources due to selfishness. Here qualnet 5.2 is used for …
Published in Journal of Communication Engineering & Systems · Vol. 2, Issue 2, 2012 · pp. 26–32 Read article
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Performance Analysis & Speed Control of 3 Phase Induction Motor on 8 Bit Controller Platforms Using LabVIEW®
Abstract: ABSTRACTPerformance analysis & speed control of 3 phase induction motor on 8 bit platform using LabVIEW® aims to speed control of 3-phase induction motor, microcontroller used for this work is AVR ATmega16. LabVIEW® provides the remote GUI interface to the system. LabVIEW® interfaces to the control system with the RS-232 communication link Using NI-VISA. Actually induction motor controlling through microcontroller and PC based GUI leads to the almost complete design …
Published in Journal of Computer Technology & Applications · Vol. 1, Issue 1-3, 2011 · pp. 88–99 Read article
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Epidemiology of Urolithiasis
Abstract: Purpose: Stone formation commonly affects the urinary system. The purpose of this study was to study the prevalence of stones in the renal system in both the sexes, age groups affected, side incidence and the site of stone. Materials and Methods: A total of 155 patients were included in the study who underwent ultrasonography studies to detect the side, site and size of the stone in the urinary system. Results: …
Published in Research and Reviews : Journal of Surgery · Vol. 8, Issue 2, 2019 · pp. 8–11 Read article
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The Doomsday Clock and Global Health: A Medical Sociological Analysis of Existential Threats to Human Civilization From 1947 to 85 Seconds to Midnight Situating the Biosocial Crises of the Twenty-First Century
Abstract: Since its inception in 1947, the Doomsday Clock maintained by the Bulletin of the Atomic Scientists has functioned as a socially constructed barometer of civilisational risk, translating complex scientific, geopolitical, and technological threats into a universally legible symbolic chronometry. As of January 2026, the Clock stands at 85 seconds to midnight, its most alarming position in nearly eight decades of operation. This article adopts a medical sociological framework, drawing on …
Published in Recent Trends in Social Studies · Vol. 3, Issue 2, 2026 · pp. 26–36 Read article
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Performance Analysis of IEEE 802.11 Wireless Ad Hoc Networks with MAC Layer Security Environments
Abstract: Unlike traditional wired networks, wireless networks do not depend on any fixed infrastructure. Therefore, these networks are vulnerable to security attacks. The report analyzes the security of wireless ad hoc networks based on the RC4 and AEC algorithm in the MAC layer.Keywords: Security, WLAN, WEP, CCMPCite this Article: M. Kumar, A.K. Jain, Performance Analysis of IEEE 802.11 Wireless Ad Hoc Networks with MAC Layer Security Environments, Journal of Network Security. …
Published in Journal Of Network security · Vol. 3, Issue 1, 2015 · pp. 1–8 Read article
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Investigation of Photocatalytic Degradation of Congo Red by Using Nano-sized Barium Chromate Catalyst
Abstract: Water pollution is a burning problem all over the world and there is a pressing demand to search green chemical routes to solve this problem. In this context, photocatalysis has emerged as a promising technology for waste water treatment, so that it may be reused. The present study involves the photocatalytic degradation of congo red dye in presence of semiconducting barium chromate powder used as a photocatalyst. The progress of …
Published in Journal of Water Pollution & Purification Research · Vol. 2, Issue 2, 2015 · pp. 14–22 Read article
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Studies on Naturally Extracted Surfactant to Enhance Flow Properties of Crude Oil
Abstract: Indian heavy crude oil sample from Gujarat was studied for improvement of properties such as pour point, wax crystal structure, particle size analysis and viscosity by addition of a novel surfactant extracted from a tropical Indian plant Sapindus mukorossi. Characterization was done to find the effect of surfactant addition on individual components of the crude oil such as saturates, asphaltenes, resins and aromatics. The objective was to increase the flowability …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 7, Issue 1, 2016 · pp. 42–49 Read article
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Preparation and Characterization of Eucalyptus Oil Nasal Microemulsion System Using Polysorbate 80
Abstract: The nasal route is considered as an alternative route of drug administration for the delivery and targeting drugs safely. The nasal absorption of the drug protects from the degradation of the drug in the gastrointestinal environment and liver metabolism. Eucalyptus oil is an essential oil frequently used for the treatment of common cold and nasal congestion. The microemulsion system of eucalyptus oil will provide effective delivery of the oil to …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 12, Issue 1, 2025 · pp. 1–8 Read article
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Synthesis of YSZ nanopowders by using PVA-metallic nitrate combustion method
Abstract: Yttria-stabilized zirconia (8YSZ) powder is widely used as a thermal barrier coatings material for various aeronautical gas turbine engine components and structures operating in high temperature environment as well as for the nozzle of solid rocket engine due to its relatively high thermal expansion coefficient, thermal reflectivity, low thermal and good corrosion resistance. The synthesis of single or composite metal oxides by combustion of metal-polyvinyl alcohol gel precursors (Me-PVA) has …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 14, Issue 3, 2024 · pp. 24–32 Read article
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Investigations on Mechanical Properties of Al 8011 Reinforced with Micro B4C/Red Mud by Stir Casting Method
Abstract: Aluminium metal matrix composites are emerging as the most versatile material for unique automotive, aviation, aerospace, defense, marine applications and other structural applications due to their excellent mixture of properties. In the present investigation, a hybrid composite of Al8011 aluminium alloy reinforced with B4C and red mud was fabricated by stir casting method. Red mud is one of the major waste material extracted from the bauxite ore of alumina during …
Published in Journal of Electronic Design Technology · Vol. 7, Issue 1, 2016 · pp. 32–38 Read article
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A Multiband Microstrip-fed Slot Antenna for ITS/WLAN/WiMAX & IEEE 802.11a Application
Abstract: A microstrip-fed slot antenna for multiband operation is proposed. The antenna is printed on silicon substrate with thickness of 1.6 mm and dielectric constant of 11.9. A simple 50Ω microstrip line is used to excite the antenna. Small rectangular slots are fabricated on substrate to achieve multiband operation of 2.34–2.44, 3.73–3.77, 3.97–4.05, 4.59–4.79, 5.14–5.26, 5.49–5.57, 5.71–5.8 and 5.86–5.95 for lS1 1l ≤ −10dB. The designing has been done in IE3D …
Published in Journal of Electronic Design Technology · Vol. 4, Issue 1, 2013 · pp. 1–4 Read article
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Small Size High Gain Antenna and High Efficiency Rectifier for RF Energy Harvesting in 2.45 GHz ISM Band
Abstract: A streamlined microwave energy harvesting system to harvest energy in 2.45 GHz presented in this paper. An electromagnetically coupled square micro-strip antenna is designed and fabricated for formation in proposed system. Antenna gain of 6.7 db and bandwidth from 2.42to 2.47 GHz is achieved. The maximum gain of proposed antenna is 24 db at frequency 2.1 GHz. Rectifier circuit consists of a resonant circuit and a boosting circuit for enhancing …
Published in Journal of Microwave Engineering and Technologies · Vol. 3, Issue 1, 2016 · pp. 41–46 Read article
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Size Dependent Fluorescence Decay Dynamics of MoS2 Nanoflakes
Abstract: This paper reports a profound method to prepare MoS2, and the effect of ultraviolet light irradiation on its emission characteristics. The exfoliation of molybdenum di-sulfide (MoS2) in a liquid phase has been achieved successfully via probe sonication for different time intervals followed by centrifugation method. Ultraviolet–visible (UV–vis) spectra of the obtained MoS2 dispersions at different exfoliation time indicate that the concentration of MoS2 nanosheets as well as MoS2 quantum dots …
Published in Journal of Polymer & Composites · Vol. 8, Issue 1, 2020 · pp. 71–76 Read article
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Heuristic Based Transportation Routing and Sizing
Abstract: Employee transportation is one of the most concerned issues and a part of HR policy in today’s work culture. Optimization of these routes and analysis of scenario needs to be done to leverage cost benefits for the organizations of today. Traditional studies focus on goods delivery and pickup, but employees are a totally different entity, which change the type of problem to be solved. As the entity to be considered …
Published in Journal of Production Research & Management · Vol. 5, Issue 3, 2015 · pp. 20–27 Read article
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Seismic Analysis of G + 10 Rc Frame Building by Using IS 1893, EC 8 & UBC seismic codes.
Abstract: The present study investigates the behaviour of G+10 storey rectangular shaped building provided with water tank at different locations total four model of G+10 storey building are prepared. The seismic of G+10 storey building is carried out by using structural analysis computer program STAAD Pro. The dynamic analysis (Response Spectrum Method) of G+10 storey rectangle shaped building with water tank at a different locations is carried out by using structural …
Published in Journal of Structural Engineering and Management · Vol. 6, Issue 1, 2019 · pp. 47–54 Read article
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Comparative studies of Oxidation and hot corrosion behaviors of uncoated and detonation gun sprayed Cr3C2-25NiCr coating on SA-213 boiler steel at 8000C
Abstract: Fe-based alloys suffer oxidation and hot corrosion when the surfaces were in contact with air (oxidation) as well as the salty atmosphere (Hot corrosion) at elevated temperatures. In these atmospheric conditions, non-protective oxide Fe2O3 was formed on the surface of alloys. Oxidation and hot corrosion have been recognized as a major problem in the applications of the diesel engine, boilers, gas turbines, and chemical power plant etc. Detonation-gun sprayed Cr3C2-25NiCr …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 6, Issue 1, 2019 · pp. 17–22 Read article
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Design and Implementation of Low Power 8-bit Level Crossing ADC
Abstract: Implantable medical devices, electronic gadgets, wireless communication elements and many other such applications require low power electronic circuits. Analog to digital converters are essential part of most of such circuits. This paper presents a design of the level crossing analog to digital converter (LC-ADC) architecture. The proposed circuit and layout has been implemented in semi-conductor laboratory (SCL) 180 nm technology and its performance was evaluated using cadence virtuoso at supply …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 2, 2016 · pp. 33–43 Read article