Search
1964 articles for “5” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
-
Analytical Determination of Strength of Demolished Recycled Coarse Aggregate
Abstract: Construction work has increased rapidly from the past two decades. With these construction activities going up, we find lacking of the construction materials, particularly aggregates. So, finding an alternate resource and their feasibility; study is the need of our project. Recycled or used aggregate proves to be a good alternative here. Therefore, the investigation was carried out using compressive strength test, confined to the objective we have tested and empirically …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 1, 2016 · pp. 1–7 Read article
-
Optimization of Cement Replacement by Fly Ash in Compressive Strength of Portland Cement Concrete
Abstract: The production of cement has been known for its additive role in environmental pollution. As a measure of abatement of pollution effort, scientist have evoked the concept of diluting cement with various pozzolanic additive like fly ash, blast furnace slag etc. Many of these additives were found to be acceptable for cement replacement, but their exact role and efficacy remains elusive. In the present study, fly ash was added as …
Published in Recent Trends in Civil Engineering & Technology · Vol. 7, Issue 1, 2017 · pp. 24–35 Read article
-
A Study on Strength and Durability of Fly Ash–Metakaolin Blended Geopolymer Concrete
Abstract: Production of cement causes 8% of the total carbon dioxide emissions in the world. Finding a right alternative to cement is the need of the hour, to eliminate environmental pollution caused by cement production. A substitute for conventional concrete can be industrial waste products like GGBS, Flyash, Metakaolin, and so on, these mineral admixtures can be used to fully replace cement with some activators this mix of mineral admixtures and …
Published in Recent Trends in Civil Engineering & Technology · Vol. 12, Issue 3, 2022 · pp. 51–59 Read article
-
Exploring the Influence of Rice Husk Ash on Compressive Strength: Experimental Investigations in Construction Materials
Abstract: This paper aims to know the effect of rice husk ash on compressive strength 6 molds were collected and laboratory tests were conducted in cooperation with private laboratories in Baghdad Governorate, Iraq. The tests were conducted for a period of 7 and 28 days, where the samples were divided into 1 control and 5 samples distributed on a different percentage from 5% to 25% of the rice husks. The compressive …
Published in Recent Trends in Civil Engineering & Technology · Vol. 13, Issue 1, 2023 · pp. 24–28 Read article
-
Enhancing Concrete Strength: Investigating the Impact of Glass Fines on Mechanical Properties
Abstract: The global emission of CO2 from cement industries poses a significant environmental challenge, being a primary contributor to environmental issues. Numerous researchers have explored alternative cementitious materials to formulate robust and long-lasting concrete. This study focuses on utilizing waste glass powder (GlP), derived from rejected soda-lime glass bottles collected from various sources, for experimental purposes. The laboratory experiments investigate the behavior of concrete incorporating glass as a partial substitute for …
Published in Recent Trends in Civil Engineering & Technology · Vol. 13, Issue 3, 2023 · pp. 15–23 Read article
-
Automated System for Reduction of Muscle Inflammation after an Injury
Abstract: AbstractThe therapeutic applications have equally gained more importance with that to surgeries in orthopedics. The main reason for pre-operative therapeutic methods on muscles deals in reducing the benign and malignant tumors, called as lesions. This is carried out with cryotherapy, which is the reliable, safer and cost-effective technique used. At first the ice packs and ice gel being applied to the area under treatment which could reduce the lesions and …
Published in Recent Trends in Electronics Communication Systems · Vol. 5, Issue 2, 2018 · pp. 7–12 Read article
-
Numerical Modelling and Simulation of Improved Partial Transmit Sequence for PAPR Reduction in OFDM Communication System
Abstract: Channel capacity and peak average to power ratio are essential elements in offering dependable communication through wireless medium in this competing wireless communication system. The rating of an amplifier in an OFDM system, as well as prospective future candidates of 5G systems such as FBMC and UFMC, is affected by a high peak to average power ratio. The demand for channel capacity fluctuates due to the growing number of wireless …
Published in Recent Trends in Electronics Communication Systems · Vol. 8, Issue 3, 2021 · pp. 33–39 Read article
-
Eco-friendly Drilling Fluid Water Loss Controlling Agents
Abstract: AbstractThe water loss from the drilling fluid with the addition natural additives like bagasse, natural sugar, and natural rubber was studied. The entire study is focused on improving the quality of controlling fluid loss with effect of natural additives. The concentrations of the additives were changed to achieve the desired reasonable value of fluid loss with the help of high pressure and high temperature (HPHT) filter press which worked at …
Published in Recent Trends in Fluid Mechanics · Vol. 5, Issue 3, 2018 · pp. 19–21 Read article
-
Calibration And Comparison Of An Improved Rotatable Single Hole Probe In 4, 6 And 8 Positions
Abstract: An improved single hole probe with a measurement volume of 0.3 mm dia. is developed in the present investigation. The probe is calibrated in a low turbulence open jet tunnel at a velocity of 50 m/s in yaw and pitch angle range of + 40 deg. at an interval of 5 deg. A special probe holder is developed so that the probe can be positioned at intervals of 15 deg. …
Published in Recent Trends in Fluid Mechanics · Vol. 8, Issue 2, 2021 · pp. 25–36 Read article
-
A Framework on Healthcare Monitoring System
Abstract: AbstractHealthcare monitoring system reduces healthcare expenses by remotely monitoring the health of patients. Healthcare applications gaining high popularity due to the features like mobility, flexibility and ease of monitoring the patient. Nowadays various type of HMS are available in market from which some are based on WSN (Wireless Sensor Network), WBAN (Wireless Body Area Network). This type of system is mostly implemented in urban areas rather than rural areas. But …
Published in Recent Trends in Sensor Research & Technology · Vol. 5, Issue 3, 2018 · pp. 5–9 Read article
-
Wearable Rectenna Array for Wireless Power Transmission
Abstract: This paper explains about design of wearable antenna array which is used for receiving the microwave power transmitted at dual frequencies. Direct current power is obtained at the end of rectifying antenna or (Rectenna) composed with filter and Schottky diode. Proposed wearable antenna is designed on jeans textile as a substrate and copper foil tap as conducting material. The antenna array has the dual band resonating frequencies which are 4.65 …
Published in Trends in Electrical Engineering · Vol. 8, Issue 1, 2018 · pp. 59–64 Read article
-
Safety System Analysis of Nuclear Power Plant in Bangladesh
Abstract: In this paper, the safety system and safeguards of the model VVER-1000, which is a Gen-III pressurized water reactor, designed by ROASTAM and chosen to be implemented in Bangladesh, will be analyzed. Several predefined major faults have been set to demonstrate the performance in preventing the release of harmful radiation. From simulation results, it has been observed that for moderator dilution, the malfunction is neutralized within 115 sec, for turbine …
Published in Trends in Electrical Engineering · Vol. 6, Issue 3, 2016 · pp. 11–25 Read article
-
Native Language Identification from Spoken Indian English
Abstract: Automatic speech recognition (ASR) systems that facilitate voice based search and information retrieval have gained importance recently. While the performance of ASR systems for Indian languages have improved in the recent past. They have yet to gain wide acceptability as much as the ASR systems for English spoken by Indians. Almost all Indians learn English as a second or third language. So, the phoneme set and the prosody of native …
Published in Trends in Electrical Engineering · Vol. 9, Issue 2, 2019 · pp. 1–6 Read article
-
Contact Stress Analysis of Needle Roller Bearing Used in Synchromesh Gear Box
Abstract: The optimum selection of a bearing generally depends on particular application such as to transfer loads between the rotating and stationary members, and to permit free rotation. From among the wide range of bearings available in the market today has various considerations, such as the load-carrying capacity, the life of the bearing, and the working rotational speed need to be considered before a suitable bearing can be selected. Here for …
Published in Trends in Machine design · Vol. 5, Issue 1, 2018 · pp. 5–20 Read article
-
Structural Studies on Glass Fiber Reinforced Poly-styrene Composites
Abstract: Polymers are used in various industries and majorly in aerospace and automobile industry where in fuel efficiency is a big challenge. Polymers are lightweight hence by volume they make up 50% of a new vehicle but by weight it is less than 10%. Current economic and environmental concerns make the creation of more fuel-efficient cars a top priority in the automotive industry. Hence the study of these polymers becomes very …
Published in Trends in Mechanical Engineering & Technology · Vol. 11, Issue 3, 2021 · pp. 32–38 Read article
-
Investigate the effect of TIG welding process parameters on weld distortion of AA6061 - A Technical review
Abstract: TIG welding, also known as Gas Tungsten Arc Welding, is a process that uses heat orpressure to join metal pieces. The electrodes and weld pools are covered with inert gas. Toachieve high-quality weld connections, superior alloys such as stainless steel, aluminium, andmagnesium alloys must be employed. The aluminium metal was invented and produced in 1825.This project uses the 6061 aluminium alloy, which is one of nine different varieties of aluminium …
Published in Trends in Mechanical Engineering & Technology · Vol. 12, Issue 1, 2022 · pp. 31–38 Read article
-
The Impact of MEMS on the Internet of Things (IoT)
Abstract: Our daily lives, workdays, and connections with the external world are all being impacted by theInternet of Things (IoT). Micro Electro-Mechanical Systems (MEMS) are tiny, economical, andpretty accurate sensors that can measure a variety of physical variables, including temperature,pressure, humidity, acceleration, and more. They are a fundamental enabler of this technology. Inthis article, we examine the effects of MEMS on the IoT and the ways in which these incrediblysmall sensors …
Published in Trends in Mechanical Engineering & Technology · Vol. 12, Issue 3, 2022 · pp. 34–38 Read article
-
Design and Analysis of Dispersion Flattened Low Loss Photonic Crystal Fiber
Abstract: AbstractThis paper demonstrates the study of triangular lattice hexagonal photonic crystal fiber with GeO2 doped core. The photonic crystal fiber (PCF) studied in this research work has a core doped with 97% molar concentrated GeO2 with seven layers of air-capillaries around the core. The design and analysis of optical characteristics, i.e., dispersion, confinement loss, and effective area have been studied extensively for optimizing the structure for a certain range of …
Published in Trends in Opto-electro & Optical Communication · Vol. 7, Issue 2, 2017 · pp. 41–50 Read article
-
Design and Analysis of a Low Loss Polarization Maintaining Waveguide for Transmission of THz Waves
Abstract: AbstractThis paper presents the design of a novel porous core kagome lattice photonic crystal fiber (PCF) which acts as a low loss and polarization maintaining teraheartz (THz) waveguide. Using finite element method (FEM), properties of the proposed PCF are simulated in details including the effective material loss (EML), confinement loss, single mode propagation. Cyclic olefin copolymer, also known as TOPAS material have been chosen for the air micro structured inhibited …
Published in Trends in Opto-electro & Optical Communication · Vol. 6, Issue 3, 2016 · pp. 13–22 Read article
-
Performance Study for Optical Half Subtractor Based on SOA
Abstract: AbstractThis article explores for an optical binary half subtractor design which is based on the semiconductor optical amplifiers nonlinear characteristics. For that, the difference output operation of data’s has been realized in the one branch with semiconductor optical amplifier realizing XOR operation and for borrow operation the AND logic operation of the data B with complaint of data A is realized in the other semiconductor optical amplifier branch. Accordingly the …
Published in Trends in Opto-electro & Optical Communication · Vol. 5, Issue 3, 2015 · pp. 50–57 Read article