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1850 articles for “Extracts”
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Extraction and Characterization of an Eco-Friendly Surfactant for Its Use in Enhanced Oil Recovery
Abstract: Experimental studies have been performed to explore the suitability of an eco-friendly surfactant in enhanced oil recovery. In this respect, herbal surfactant has been isolated from soap nut and characterized by its morphology and physico-chemical properties. The extracted surfactant reduces the interfacial tension significantly over a wide range of concentrations. A series of flooding experiments have been carried out using the extracted surfactant and substantial incremental recoveries have been observed …
Published in Journal of Petroleum Engineering & Technology · Vol. 3, Issue 1, 2013 · pp. 20–29 Read article
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Polystyrene Plastic Waste into Liquid Fuel Using Silica-Alumina Catalyst, Extracted from Rice Husk
Abstract: Catalytic Pyrolysis of Polystyrene (PS) into fuel like products using silica alumina catalyst that was extracted from rice husk was investigated over temperature range of 430–470°C. The output of catalytic pyrolysis was liquid oil, solid residues (char) and gaseous fraction. The product yields as a function of temperature, time and catalyst amount were studied. High conversion of liquid (48.8%) was achieved at 430 and 450ºC in the presence of 12.5 …
Published in Journal of Petroleum Engineering & Technology · Vol. 10, Issue 3, 2020 · pp. 15–31 Read article
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A New Sub-1 Volt Reference for Low Voltage Application Based on MOSFET’s Threshold Voltage Extractor
Abstract: A CMOS voltage reference circuit featuring MOS transistors threshold voltage extractor has been developed. The circuit implemented using 0.35µm CMOS AMS process generates a reference of 574 mV for a power supply of 3.3V with 726µW power consumption. The circuit presents a variation of 43 ppm/ºC for the –10 to –110ºC temperature, and 18.6 dB PSRR at 1 KHz. A vital analytical approach is presented to provide a universal design …
Published in Journal of VLSI Design Tools and Technology · Vol. 3, Issue 1, 2013 · pp. 14–19 Read article
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A New Extractive Spectrophotometric Method for the Determination of Oxydemeton methyl in Relation to its Environmental and Toxicological Analysis
Abstract: In view of the wide agricultural use of oxydemeton methyl insecticide and its associated toxic effects, it has been determined in the soil, water and foodstuffs to assess its environmental relevance. A new, simple and sensitive extractive spectrophotometric method has been developed for the purpose. It is based on microwave-assisted alkaline hydrolysis of insecticide to form 2-ethylsulfinyl-ethyl mercaptan and transformation of the latter through reaction with carbon disulphide and nickel(II) …
Published in Research and Reviews: A Journal of Toxicology · Vol. 2, Issue 2, 2012 · pp. 1–11 Read article
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Formulation and Evaluation of Herbal Cream from Ethanolic Extract of Panfuti (Bryophyllum pinnatum) Leaves
Abstract: Bryophyllum pinnatum, commonly referred to as the "miracle leaf" or "life plant," is a succulent medicinal plant widely valued in traditional medicine. It is well known for its broad range of pharmacological activities, including wound-healing, anti-inflammatory, and antioxidant properties, making it an important species in natural and herbal therapeutics. This study aimed to formulate a topical cream incorporating Bryophyllum pinnatum extract and evaluate its physicochemical properties, stability, and potential for …
Published in Research & Reviews: A Journal of Drug Formulation, Development and Production · Vol. 13, Issue 3, 2026 Read article
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Facial Recognition System Based on Score-level Fusion of LBP and Gabor Feature Extraction Techniques
Abstract: Face recognition is gaining recognition over the last few decades. Nowadays, this technology is highly used in smartphones to unlock the phone by sensing the face of an individual. In our paper, we aim to maximize recognition rates by performing the score-level fusion of two feature extraction techniques: Local Binary Pattern (LBP) and Gabor features. These two techniques on fusion provide better recognition rates as compared to the recognition rates …
Published in Journal of Artificial Intelligence Research & Advances · Vol. 7, Issue 1, 2020 · pp. 10–14 Read article
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Feature Extraction and Classification for Using Mammographic Images
Abstract: AbstractOne of the greatest threats prevailing among women is the breast cancer. According to the National Cancer Institute, 22% of new cases occur every year and it is considered to be the second most frequent type of cancer, worldwide. Mammogram is very important imaging technique that used diagnosis in early stages of breast cancer. Mammography is in this case the best diagnostic technique for screening, the radiology tool which gives …
Published in Journal of Advances in Shell Programming · Vol. 4, Issue 2, 2017 · pp. 10–18 Read article
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Moving Vehicle Speed Determination and Number Plate Recognition through Feature Extraction
Abstract: AbstractVelocity Estimation, instead of using complex algorithms, can be easily implemented on MATLAB by some simple calculations. Speed can also be tracked using the threshold values and thus concerned authorities can be notified using the Gmail interfacing. For real time applications, some advanced hardware should be used. Nowadays traffic is a very big problem in the urban areas that has to be addressed. Video monitoring is one of the latest …
Published in Journal of Image Processing & Pattern Recognition Progress · Vol. 4, Issue 1, 2017 · pp. 1–3 Read article
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Extract & Recognize texts From Images using ROI and Webcam
Abstract: Identification of texts from logos is crucial step in today’s world as every organisation has a different logo. Logos may contain different colorful background which make it difficult to easily recognise the text from the logo. Sometimes, texts on the logos are not easily readable as texts may have different font, foreground color, orientations,etc. This paper focusses on the extraction and recognition of texts from the logos and number plates.We …
Published in Journal of Image Processing & Pattern Recognition Progress · Vol. 5, Issue 1, 2018 · pp. 45–50 Read article
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Pattern Extraction and Classification of ECG Signals using Neuro-Fuzzy Techniques
Abstract: Electrocardiography is a technique which provides the interpretation of the electrical activity of the heart over a period of time. The condition of cardiac health is given by Electrocardiogram (ECG) and heart rate. This paper represents the techniques, which extracts features from the ECG signals and classify them. ECG signal were taken from preselected data segment of the MIT‐BIH Arrhythmia Database. Pattern extraction provides the PQRST-wave values, heart rate and …
Published in Journal of Software Engineering Tools & Technology Trends · Vol. 1, Issue 3, 2014 · pp. 1–7 Read article
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Extract Entity And Attributes From User Requirements by Applying On Natural Language Processing (NLP) Model.
Abstract: Automatic generation of entity and attributes from end user requirement reduces cost, time and complexity of software development process. The main aim of this research work is to transform user requirement to Natural Language Processing (NLP) for reducing the ambiguity, inconsistency and incompleteness, and finally extract entity and attributes. This study discusses some initial experiments which are encouraging further research to help in improving the software development process. It focuses …
Published in Recent Trends in Programming languages · Vol. 8, Issue 1, 2021 · pp. 9–15 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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Antipyretic Effects of Whole Plant Extract of Nyctanthes arbortristis linn.
Abstract: Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} The antipyretic activity of Nyctanthes arbortristis linn extract is investigated for potential on normal body temperature and yeast-induced pyrexia in albino rats. The whole plant of Nyctanthes …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 2, Issue 1, 2011 · pp. 7–10 Read article
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Evaluation of Anti-ulcer Activity of Ethanolic Extract of Salacia fruticosa and Oldenlandia Umbellata
Abstract: In this present study the aerial and root parts of Salacia fruticosa and the entire herb of Oldenlandia umbellate were evaluated for its anti-ulcer property in Aspirin induced ulcer model and Pylorus ligation assays. Both plant materials were extracted with ethanol and given at the dose level of 200mg/kg orally after the LD50 studies to fix the dose. Ulcer index, free acidity and total acidity in pylorus ligated and aspirin …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 4, Issue 2, 2013 · pp. 1–5 Read article
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Extraction of High Resolution DEM from Cartosat-1 Stereo Imagery using Rational Math Model and Its Accuracy Assessment for a Part of Snow Covered NW-Himalaya
Abstract: This paper reports the experiments carried out for extraction of DEMs from Cartosat-1 stereo imagery using stereo correlation technique for Manali region. The focus of this paper was to assess the accuracy of extracted DEM with respect to DGPS observations, DEM generated from digitized contours of Survey of India (SoI), 1:50,000 scale topographic map(converted to ellipsoidal height using egm2008 geoid model) as well as well-known freely available DEMs ASTER GDEM …
Published in Journal of Remote Sensing & GIS · Vol. 4, Issue 2, 2013 · pp. 23–34 Read article
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Extraction of Drainage Pattern and Watershed from SRTM Data Using GIS Tools: A Case Study
Abstract: This paper proposes a fast and an inexpensive method for delineating the drainage and watershed of a sub-basin. Planning of the water resource management is evolving from simple local-scale problems toward complex spatially explicit regional scale. Such problems have to be addressed with distributed models that can compute runoff and erosion at different spatial and temporal scales. In general, watershed can range from as little as one hectare to hundreds …
Published in Journal of Remote Sensing & GIS · Vol. 7, Issue 1, 2016 · pp. 1–9 Read article
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Antimicrobial Activity of Partially Purified Extract of Streptomyces Sp. on MRSA
Abstract: Methicillin-resistant Staphylococcus aureus (MRSA) is a major cause of increasingly prevalent, difficult and expensive-to-treat nosocomial as well as community-acquired infections worldwide. Accurate and rapid detection of MRSA in a clinical laboratory is of utmost importance to avoid treatment failure as these strains are multidrug resistant and there are limited options to treat these infections. Hence, exploring newer antibacterial substances is the need of the hour. In this study, phenotypically and …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 4, Issue 1, 2014 · pp. 7–11 Read article
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Turmeric Extract and Curcumin Enhance the Yield of T2 Bacteriophage in E. coli
Abstract: Normal 0 false false false EN-US X-NONE X-NONE It has been demonstrated that turmeric and curcumin—a chemical present in turmeric—have antibacterial and antiviral activity for viruses of humans. Increasing concentrations of turmeric extract and purified curcumin have no effect on the replication of Escherichia coli cultured in Luria-Bertani broth. Increasing concentrations of curcumin enhance the replication of T2 bacteriophage in E. coli cells. E. coli cells treated with purified curcumin …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 6, Issue 3, 2016 · pp. 19–26 Read article
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Green Synthesis of Zinc Oxide Nanoparticles using Extracts of Ocimum Tenuiflorum and its Characterization
Abstract: Various applications of nanoparticles stimulate the need for synthesizing them. But, the conventional methods are usually hazardous and energy consuming. This leads to the focus on “green synthesis” of nanoparticles which was an efficient and eco-friendly approach. Natural diminishment operators are being investigated worldwide to limit the impacts of toxic chemicals utilized as a part of nanoparticles creation. The present study states a green approach for the synthesis of zinc …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 8, Issue 1, 2018 · pp. 9–19 Read article
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Green Synthesis of silver nanoparticles using Moringa Oleifera leaf extract: Investigation of Photocatalytic activity
Abstract: In the present study, cost effective and environment friendly silver nanoparticles were synthesized using Moringa Oleifera leaves extract as the reducing and capping agent. The nanoparticles (AgNPs) were characterized using UV-visble, FT-IR, XRD, and Scanning electron microscopy (SEM) analysis. The surface plasmon resonance peaks in absorption spectra for silver colloidal solution showed an absorption peak at 443 nm in a UV-visible spectrum. From the XRD data, we suggest the occurrence …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 8, Issue 2, 2018 · pp. 60–68 Read article