Search
81 articles for “PPM”
-
Comparative Analysis of OOK and M-ary PPM Modulation Technique over Exponentiated Weibull Distribution under Different Turbulence Regime
Abstract: In this paper, the Exponentiated Weibull distribution has been investigated for different turbulence regime considering the aperture averaging at the receiver. The comparative analysis of modulation technique (on-off keying and pulse position modulation) has been presented for different aperture size under weak, moderate, and strong turbulence regime. The closed form of expression of bit error rate (BER) has been numerically derived from the cumulative distribution function (CDF) using the Gauss- …
Published in Trends in Opto-electro & Optical Communication · Vol. 11, Issue 1, 2021 · pp. 7–12 Read article
-
Determination of Selected Essential (Copper, Zinc) and Non-essential (Lead, Chromium, Cadmium) Heavy Metals in Some Single-use Plastics from Sokoto Metropolis, Nigeria
Abstract: Background and objectives: The objective of this study is to conduct Atomic Absorption Spectroscopy Analysis of selected essential (Cu, and Zn) and non-essential heavy metals (Cr, Cd, and Pb) in selected different single-use plastics that are in contact with food from Sokoto, Nigeria. Methods: The levels/concentrations of heavy metals in plastics were determined using atomic absorption spectroscopy. Findings: Copper levels range of 0.05000.001 to 0.90100.001 (ppm), while zinc levels are …
Published in Journal of Materials & Metallurgical Engineering · Vol. 12, Issue 3, 2022 · pp. 29–37 Read article
-
Kinetics of Soil Contaminant Degradation Enhanced by Jatropha Tanjorensis Leaf Bio-Stimulant
Abstract: The data obtained from the experiment show a high viability of the plant extracts in the biodegradation process, the maximum specific rate was determined. Also, application of Michael Menten’s equation were also applied, the maximum dissociation rate constant was obtained from lineweaver bulk plot, for both sun-dried and room dried at 100 g of CPED and CPEL as RMAX to be 1000 ppmday-1 and 555.55 ppmday-1 whereas KPTH 3190.16 ppm-1 …
Published in Journal of Catalyst & Catalysis · Vol. 11, Issue 1, 2024 · pp. 01–06 Read article
-
The Integrity of Eadic-Hofstee Plot Model to Predict the kinetic Parameters of Crude Oil Degradation using Vernonia amygdalina Stem
Abstract: The integrity of Eadic-Hofstee concept was tested for the determination of the functional coefficients and parameters of crude oil degradation kinetics. The techniques enhanced the relationship between the substrate divided by the specific rate of the substrate degradation against substrate concentration (TPH). The investigation reveals the values of the biokinetic parameters of maximum specific rate of substrate degradation (Vmax) and the equilibrium constant values of the substrate degradation (Ks). The …
Published in Journal of Petroleum Engineering & Technology · Vol. 14, Issue 2, 2024 · pp. 37–47 Read article
-
Study of the response of Fenugreek Seedlings (Trigonella foenum-graecum L.) to some Plant Growth Regulators and Their effect on the production of the active Compound (Trigonelline)
Abstract: The experiment was conducted during the 2022–2023 academic year in the laboratories of the Department of Biology, Faculty of Education for Girls, University of Kufa, to investigate the effects of varying concentrations of gibberellic acid (GA₃) — specifically 0, 2, and 3 ppm — and salicylic acid (SA) (0, 2.5, 5 ppm) as well as the interaction between them on the germination percentage and some growth traits of fenugreek seedlings …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 15, Issue 2, 2025 Read article
-
Plant-Drive Natural Filler Filled Polypropylene Composites: Effects of Filler Treatment, Filler Content and Nanoclay on Properties
Abstract: In this study, PP was blended with nanoclay at three different loadings of 1, 3, and 5 wt%, while maleated polypropylene (PPM) was added at 5 wt%. The results showed that PP nanocomposites prepared at 5% PPM and 3% nanoclay showed optimum mechanical performance. In this research, untreated and chemically treated peanut shell flour (PSF) reinforced PP nanocomposites were prepared at four different loadings of 10, 20, 30, and 40 …
Published in Journal of Catalyst & Catalysis · Vol. 9, Issue 2, 2022 · pp. 1–12 Read article
-
Selected Heavy Metals Levels (Cu, Cr, Cd, Pb, Fe) in Gwadabawa Lake, Sokoto State, Nigeria
Abstract: The main aim of this work was to determine the concentrations of some heavy metals, specifically Cu, Cd, Pb, Cr and Fe in Gwadabawa lake, Gwadabawa Local Government, Sokoto State using standard methods (atomic absorption spectroscopy) and materials of analytical grade. The results were analyzed. The range of Fe concentration was 0.01 ± 0.001 to 1.37 ± 0.3(ppm), and range of Cu concentration determined was 0.00 to 0.02±0.008(ppm). The range …
Published in International Journal of Minerals · Vol. 1, Issue 1, 2024 · pp. 8–15 Read article
-
Preserving Papaya Pulp with Potassium Metabisulfite: A Study on Prolonging Shelf Life
Abstract: Papaya is a highly perishable fruit with a shelf life of only 3 to 6 days under tropical conditions, leading to significant postharvest losses. This study aimed to preserve papaya pulp for subsequent use in product development .Pulp was extracted from “Indian Red Lady Variety” of papaya and treated with potassium metabisulphite (KMS) at concentrations of 500, 1000 and 1500 ppm. The treated pulp was stored at room and refrigerated …
Published in Research & Reviews : Journal of Food Science & Technology · Vol. 13, Issue 2, 2024 · pp. 06–14 Read article
-
Innovative Biogas Strategies: Anaerobic Co-Digestion of Livestock Waste
Abstract: The goal of the study is to determine whether anaerobic co-digestion of cow dung can be used to produce biogas and whether adding sodium and calcium alginate directly to natural lagoon sediment can reduce sulphide concentrations. It was observed that one minute of focus Sodium and calcium alginate were added at the start of the anaerobic digestion cycle, which indicates a propensity to lower the system's hydrogen sulfide concentration and …
Published in Emerging Trends in Chemical Engineering · Vol. 12, Issue 1, 2025 · pp. 40–45 Read article
-
Investigation into the Use of Anaerobic Co-digestion of Cow Dung for Biogas Production
Abstract: The research is targeted on investigating the use anaerobic co-digestion of cow dung for biogas production, and to influence a decrease in the concentration of sulphide using direct inclusion of facultative lagoon sediment with sodium and calcium alginate. It was noted that 1 minute concentration of calcium alginate and sodium was introduced right from the beginning of the anaerobic digestion cycle shows the tendency to increase methane concentration and reduce …
Published in Emerging Trends in Chemical Engineering · Vol. 9, Issue 1, 2022 · pp. 23–28 Read article
-
Analysis of M-ary Signaling for Weak Turbulence Regime in FSO Communication System
Abstract: Abstract: The need for high data rate LOS communication is accomplished using the Free Space Optical communication. Being a very cost-effective approach, it contributes to the easy set-up and deployment of point to point terrestrial link. It transmits the light signal in free space channel (air, vacuum etc.) using LASERs or LEDs and received via photodetector. In this paper, the channel is modelled using Lognormal turbulence model. This channel model …
Published in Trends in Opto-electro & Optical Communication · Vol. 9, Issue 1, 2019 · pp. 24–31 Read article
-
Acute and Chronic Toxicity of Fluoride and Aluminum on Plant and Animal Models
Abstract: Ecotoxicological studies revealed aluminum (Al2SO4. 24 H2O) to be more toxic than fluoride (NaF) on a battery of test organisms (EC/LC50 of Al = 0.308 1.46 ppm; F = 116.6 232.8 ppm). During chronic exposure (Al = 3 ppm, F = 10 ppm for 60 90 days), there was reduction in growth parameters of organisms at different trophic levels in a food chain such as producers {dry weights (6.7 29.0) …
Published in Research and Reviews: A Journal of Toxicology · Vol. 1, Issue 1-3, 2011 · pp. 1–19 Read article
-
A Study of Environmental Pollution in Some Areas of the City of Najaf for Some Heavy Metals
Abstract: Pollution is one of the most important problems that people face at the present time, and the problem of soil pollution is the most serious, due to its relationship to human health and other organisms. Soil sample collection areas in the city of Najaf were chosen based on several factors, including traffic, industrial and urban activities, and population density. Soil samples were taken at a depth level ranging between 0-15 …
Published in Research & Reviews : Journal of Ecology · Vol. 13, Issue 2, 2024 · pp. 14–23 Read article
-
Composition and Structure of Oil Finishing Agent †
Abstract: Use of oil finishing agent is widely used in the process of production of carbon fibers to impart unusual and exceptional strength to the carbon fibers, the key load-bearing component, of the advanced materials, namely, carbon fiber reinforced composites (CFRPs). CFRPs are being widely used in the realm of aeronautics, astronautics, aeronautics, geonautics, sports equipment, and many more. However, quite often, much of the knowledge on the composition of oil …
Published in International Journal of Crystalline Materials · Vol. 2, Issue 1, 2025 · pp. 01–10 Read article
-
Diesel Adulteration Detection Using Gaseous Vapor Emission
Abstract: Diesel adulteration is the illegal or unauthorized introduction of foreign substances into pure diesel,causing the product to not conform to the requirements and specifications for use in the Oil and GasIndustry. Current methods to detect diesel adulteration require chemical laboratory experiments tomeasure parameters such as density, API gravity, viscosity, flash point, and evaporation point. Thesemethods require specialized, expensive equipment and cannot be utilized be quickly and readilyemployed at point of …
Published in Journal of Petroleum Engineering & Technology · Vol. 11, Issue 1, 2021 · pp. 69–76 Read article
-
Selenium Contamination of Groundwater of Malwa Belt of Punjab (India)
Abstract: Punjab is facing a crisis situation due to high levels of uranium, arsenic and selenium in underground water table of Punjab. Malwa belt of Punjab, namely, Ludhiana, Ferozepur, Roop Nagar and Fatehgarh sahib districts have high selenium contents in groundwater. Selenium Acceptable Limit (AL) for groundwater is fixed at 0.01 mg/l (ppm) by the Bureau of Indian Standards (BIS). In this report, groundwater quality data pertaining to selenium in the …
Published in Research and Reviews: A Journal of Toxicology · Vol. 9, Issue 1, 2019 · pp. 13–20 Read article
-
Cadmium Accumulation in Different Tissues and DNA Content Alteration in Cat Fish (Clarias batrachus) Exposed to Lethal Concentration of Cadmium
Abstract: In the present study, the acute toxicity experiment was conducted to evaluate LC50 of Cadmium chloride (CdCl2) on Clarias batrachus which was found to be 450 ppm for 96 h. Clarias batrachus (average length of 8.5 ± 0.4 cm and the average weight of 13.5 ± 0.393 g) was exposed to sub-lethal concentration (140 ppm) and lethal (450 ppm) concentrations of Cd for 14 days. The Cd accumulation in tissues …
Published in Research and Reviews: A Journal of Toxicology · Vol. 10, Issue 3, 2020 · pp. 1–8 Read article
-
Incidence of Salmonella spp., Klebsiella spp., Proteus spp. and Two Micronutrients (Zinc and Iron) Present in Poultry Feeds Collected from Sokoto, Nigeria
Abstract: Mostly, poultry quality is determined by its feed. Thus, in this time of ravaging pollution and infectious diseases monitoring of quality of products related to poultry is eminent. This study aimed at determining the incidence of some microbes and micronutrients (zinc and iron) in poultry feed in Sokoto, Nigeria. Standard methods and materials of analytical grade were used. Zinc and iron micronutrients were determined in feed and egg using atomic …
Published in International Journal of Pollution: Prevention & Control · Vol. 1, Issue 1, 2023 · pp. 31–38 Read article
-
Optimization of Liquid Metal Nanocomposites and Biogas Addition Rate Using ANN-GA
Abstract: In this study, the liquid metal nanocomposites were investigated using artificial neural network (ANN) prediction capabilities for Compression Ignition (CI) engine performance. The independent input variables selected were load (20-100%), Liquid-metal nanocomposites Doped Rate (NDR, 0-50 ppm), and Biogas Flow Rate (BFR, 0.5-1.0 kg/h). The Central Composite Face-Centered Design (CCFCD) was used in conjunction with the selected input variables and output parameters to assist in the preparation of the Design …
Published in Journal of Polymer & Composites · Vol. 11, Issue 11, 2023 · pp. 12–27 Read article
-
Assessment of Chlorides In The Water Samples And Its Absorption By Thermosetting Polymer Phenol Formaldehyde Resin
Abstract: Assessing chloride levels in water samples is critical for monitoring water quality and ensuring environmental and public health protection. This study presents a comprehensive methodology for estimating chloride concentrations in water samples through various analytical techniques, including titration. Results obtained from each method were compared and discussed to evaluate their accuracy, and applicability in different environmental settings. The data shows that the samalkot drinking water sample has a relatively high …
Published in Journal of Polymer & Composites · Vol. 12, Issue 2, 2024 · pp. 91–98 Read article