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1948 articles for “Particulate matter (PM2.5” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Experimental Investigation on Concrete with Replacement of Fine Aggregate from Scrap Tyre Rubber Dust
Abstract: Concrete is the most widely used construction material in the world in which cement and aggregates are the main constituents. This has led to continuous and increasing demands of natural materials used in the construction. Present study aims to explore the potential utilization of scrap tyre rubber in various Portland cement concrete categories for the production to study the structural behaviour of concrete, and to help partially solving environmental problem …
Published in Recent Trends in Civil Engineering & Technology · Vol. 7, Issue 2, 2017 · pp. 5–9 Read article
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Effects of Polypropylene Fibre on Strength of Geopolymer Concrete
Abstract: In the construction industry, the most vital parameter considered in the current scenario is the sustainable development of the structures. The most used material in construction is concrete, which is primarily made up of Portland cement. The production of Portland cement is nearly about 2.6 billion tonnes per year and is increasing at the rate of 5% annually. The concrete industry contributes about 5–8% of all human generated carbon dioxide …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 3, 2016 · pp. 23–31 Read article
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A Remote Sensing Approach for Monitoring Seasonal Variations in the Water Quality of Lake Guaiba, Southern Brazil
Abstract: Freshwater resources in the tropics are subjected to high rate of pollution due to algal blooms during the summer and due to particulate and organic waste discharge from urban areas during spring. Landsat TM images were used to calculate biochemical oxygen demand and turbidity of Lake Guaiba in Southern Brazil during 2010–2011. The results obtained were compared with the values derived from a yearlong sampling data which were analyzed in …
Published in Recent Trends in Civil Engineering & Technology · Vol. 4, Issue 1, 2014 · pp. 1–10 Read article
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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
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Utilization of Flue Gas Conditioned Fly Ashes in Cement and Construction Industries
Abstract: Fly ash is a waste generated from coal based boilers and has been used in various civil engineeringapplications. The pozzolanic activity of the fly ash plays a major role in its utilization. The ageing of theelectrostatic precipitators (ESPs), variation in coal and ash properties results in higher suspendedparticulate matter (SPM) emissions. Globally the SPM limits are being reduced, flue gas conditioning(FGC), i.e. dosing of ammonia and sulphur trioxide to the …
Published in Recent Trends in Civil Engineering & Technology · Vol. 1, Issue 1-3, 2011 · pp. 69–80 Read article
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To Examine of Novel Biosensor Strategies for Analysis of Meals Contaminants and Medical Analytes
Abstract: AbstractGeneral wellbeing standard relies upon the nature of diet items. Aside from valuable constituents, sustenance items additionally contain contaminants that are lethal in nature and can cause contaminations and maladies. Characterizing human presentation to different contaminants like chemicals (urea), biochemical (anti-infection agents), or organic (microorganisms) is a gigantic assignment. Ordinary systems are not equipped for giving high-throughput and touchy location of these contaminants, particularly in milk, water and clinical analysts. …
Published in Recent Trends in Sensor Research & Technology · Vol. 5, Issue 1, 2018 · pp. 31–39 Read article
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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
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Performance of NRZ and Manchester DPSK Downstream and Upstream OOK for WDM-PON
Abstract: AbstractA novel data re-modulation scheme with downstream. Differential phase shift keying (DPSK) signals and on-off keying (OOK) upstream signal modulation format is proposed for wavelength-division multiplexing (WDM) – passive optical networks (PON) in the letter. A simulation on 5-Gb/s downstream optical DPSK signal and 5 Gb/s upstream optical OOK signal. 5Gb/S on DPSK OOK all are successfully demonstrated over 20-km single mode fiber without chromatic dispersion compensation.Keywords: Differential phase-shift keying …
Published in Trends in Opto-electro & Optical Communication · Vol. 7, Issue 1, 2017 · pp. 6–9 Read article
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Effects of Variation of Active Region Radius on the Performance Characteristics of a Designed 1550 nm Al0.09Ga0.38In0.53As/InP MQW VCSEL
Abstract: AbstractIn this work, the performance characteristics of a designed Al0.09Ga0.38In0.53As/InP based 1550 nm top emitting multi quantum well (MQW) vertical cavity surface emitting laser (VCSEL) has been obtained. By evaluating the attained result of different parameters of selected MQW VCSEL the peak material gain is obtained as 1652.3 cm-1. For 6.1 mA of injection current and 5.65 µm of active region radius, the optical output power of 31.37 dBm and …
Published in Trends in Opto-electro & Optical Communication · Vol. 4, Issue 3, 2014 · pp. 8–13 Read article
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Influence of Blending Technique on Surface Free Energy of Modified Asphalt Cement
Abstract: AbstractThe processing technique of modified asphalt cement in the laboratory is adopted by heating the asphalt cement in an oven to the required mixing temperature; then the additive is added and mixed for a target mixing time. It was felt that such technique allows more volatiles to evaporate and required high mixing temperature. In this work, asphalt cement of 44 penetration grade was gained from Dora refinery, south west of …
Published in Trends in Transport Engineering and Applications · Vol. 5, Issue 1, 2018 · pp. 22–31 Read article
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Modelling of Concrete Slab Tensile Stresses for Apron International Al-Najaf Airport
Abstract: The objective of this study was to develop Three Dimensional Finite Element Model (3D-FEM) that can be used to investigate the structural analysis of apron area plain and reinforced concrete slab under Airbus A380-800 aircraft land gear loading. The computer program ANSYS (2014) was selected to develop 3D-FEM for this study. Suggested rigid pavement for apron area was studied with different thickness (20,30, 40 and 50 mm) and Young modululi …
Published in Trends in Transport Engineering and Applications · Vol. 3, Issue 2, 2016 · pp. 7–18 Read article
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Integrated Networks: A Survey
Abstract: AbstractUniversal Mobile Telecommunication System (UMTS) networks are solution for high speed voice and internet services with ubiquitous coverage. Ericsson Mobility Report (EMR) has claimed that subscriptions of UMTS/HSPA were 2.1 billion in 2015 and predicted that these are expected to reach 3.1 billion by the end of 2021 [1–3]. They support 384 kbps maximum data rate in downlink and 128 kbps data rate in uplink over a 5 km typical …
Published in Current Trends in Information Technology · Vol. 9, Issue 1, 2019 · pp. 22–29 Read article
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Spectrum of Special Search Engines on the Web
Abstract: Many individuals now rely on search engines as a regular part of their daily routines. Almost everyone starts their search for information on the Internet there. It is a search tool for information on the Internet. No matter whether we need comprehensive information or are looking for the nearest supermarket, nothing works without search engines. They show us the way through the impenetrable jungle of the Internet. Some search engines …
Published in Current Trends in Information Technology · Vol. 13, Issue 3, 2023 · pp. 20–31 Read article
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Simulation Based Performance Analysis of Wired Computer Networks
Abstract: Abstract Simulation is the process of accessing the real-world scenario in a virtual way. The purpose of simulation modeling is to ease the understanding of real working situations, to surge its behavior and its reactions during particular events. It is the application of computational models to the study and prediction of physical events or the behavior of engineered systems. Selection of a particular network simulator involves factors like availability of …
Published in Journal of Communication Engineering & Systems · Vol. 1, Issue 1-3, 2011 · pp. 60–66 Read article
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PAPR Reduction using Selective Mapping Method for OFDM Communication Systems
Abstract: AbstractSelective mapping method (SLM) is one of the most important techniques used for peak-to-average power ratio (PAPR) reduction of orthogonal frequency division multiplexing (OFDM) communication system. It is simple in implementation, gives distortionless transmission and reduces PAPR significantly. Mathematical modelling and Matlab simulation have been carried out to analyse its performances. At of CCDF, PAPR values for OFDM signal without applying any reduction technique is 11.5, 11.8, 12.1, 12.4 and …
Published in Journal of Communication Engineering & Systems · Vol. 5, Issue 3, 2015 · pp. 50–57 Read article
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Capacity and BER Performance Analysis of Single Cell Massive MIMO with Various Precoding Techniques
Abstract: AbstractMassive Multi Input Multi Output (MIMO) is one of the promising technologies which will facilitate the 5th generation wireless communication system (5G) in the near future. It also goes by other names such as, large MIMO, hyper MIMO, full-dimension MIMO and ARGOS. In this technology the Base Station is incorporated with a large number of transmitting antennas (e.g., Hundreds, thousands). A large number of antenna help to focus the energy …
Published in Journal of Communication Engineering & Systems · Vol. 6, Issue 1, 2016 · pp. 1–14 Read article
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Cyber Security Purity in 2021 and Afar Tips for Businesses
Abstract: While policy makers to cyber security specialist call for Update cyber hygiene, no one really knows what it means. In reality, there exists no scholarly exploration clarify the conception or its dimension. This exploration makes a principal donation by conceptualizing cyber hygiene, working it, empirically relating its sub-dimensions, and construct an force for it. The exploration achieves this with a mixed-styles approach, where using an emulsion of experts and an …
Published in Journal Of Network security · Vol. 9, Issue 3, 2021 · pp. 7–12 Read article
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Effect of Tareeq (Sweating) in Waja-ul-Mafasil (WM) of Samane Mufrat (Overweight/Obesity)—A Study
Abstract: Samane Mufrat (obesity) occurs due to decrease in hararate ghareezia (innate heat). It is a chronic and increasingly common disease characterized by excess body fat. It is more prevalent in women because of their barid mizaj (cold temperament). The shaham wa sameen (fats) are barid ratab (cold wet), so they accumulate in barid mizaj individuals. As body mass index (BMI) values increase, joint pain symptoms and severity increase. Joint pain …
Published in Journal of AYUSH: Ayurveda, Yoga, Unani, Siddha and Homeopathy · Vol. 9, Issue 3, 2020 · pp. 18–21 Read article
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Efficacy of Jawarish Falafali in Siman Mufrit (obesity): A pre-post analytical clinical study.
Abstract: Background & Objectives: Obesity (Siman Mufrit) is characterized by excess adipose tissue mass and increased BMI. Obesity has already reached epidemic proportions. In 2016, 1.9 billion adults worldwide were overweight. Of these over 650 million were obese. About 340 million adolescents (aged 5-19) and 41 million children (age < 5) were overweight or obese. NFHS-4 (2015-16) reported that obesity in India doubled in the last decade. Obesity is strongly associated …
Published in Journal of AYUSH: Ayurveda, Yoga, Unani, Siddha and Homeopathy · Vol. 9, Issue 3, 2020 · pp. 59–67 Read article
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Evaluation of Effect of Rasayana Ghana Tablet (An Ayurvedic Formulation) in Management of Akala jara (Premature Ageing)
Abstract: In the present era of stress, when lifestyle disorders are on the rise, premature ageing is also one of the most prevalent disorders. Ayurvedic Rasayana (rejuvenator) drugs can provide solution for this. The present study was aimed to evaluate the efficacy of Rasayana Ghana tablet (RGT) in management of premature ageing. In this placebo-controlled randomized prospective clinical study, Rasayana Ghana tablet based upon the classical combination of Gokshura (Tribulus terestris …
Published in Journal of AYUSH: Ayurveda, Yoga, Unani, Siddha and Homeopathy · Vol. 1, Issue 1-3, 2012 · pp. 77–88 Read article