Showing 1-25 of 66 resultsfor "Index Terms":Pure Extract
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Biomedical Applications of Green Synthesized Zinc Oxide and Magnesium-Doped Zinc Oxide Nanoparticles Using Aqueous Extract of Ziziphus Oxyphylla Leaves
Suliman Syed;Arshad Islam;Muhammad Shabeer;Akhtar Nadhman;Farhan Ahmad;Nadia Irfan;Shaila Mehwish;Ajmal Khan
Zinc oxide (ZnO) and magnesium-doped zinc oxide (Mg-doped ZnO) nanoparticles (NPs) were synthesized using Ziziphus oxyphylla ’s aqueous leaf extract as reducing agent. UV-Vis absorption peaks at 324 nm and 335 nm were indicative of ZnO and Mg-doped ZnO, respectively. FTIR absorption bands observed at 3238, 1043, 1400, 1401, 2186 and 2320 cm $^{-1}$ suggested the presence of phenols, alcohols, sat...Show More
Biogenic synthesis of silver nanoparticles utilizing the leaves aqueous extract of Ziziphus nummularia and citrullus colocynthis
International Conference on Advanced Nanomaterials & Emerging Engineering Technologies
Year: 2013 | Conference Paper |
Synthesis of nanoparticles utilizing plants' extract is the most emerging green chemical method as compared to physical and chemical methods. In this work silver nanoparticles synthesis by green chemical method involving leaves aqueous extract of Ziziphus nummularia & citrullus colocynthis are reported.The plants used in the study has been reported to possess potential antimicrobial, antihelminthi...Show More
Evaluation of Potential Antioxidative Activities of Jiangcan (Bombyx batryticatus) Extracts
2010 4th International Conference on Bioinformatics and Biomedical Engineering
Year: 2010 | Conference Paper |
Jiangcan, Bombyx batryticatus, was extracted by five solvents with increasing polarity, named chloroform, ethyl acetate, acetone, methanol and deionized water to investigate the potential antioxidant activities. Four in vitro assays were employed, including scavenging activity on 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical, the reducing power, the chelating ability on ferrous ions and inhibiting ...Show More
A New Method for Estimating Signal-to-Noise Ratio in UAV Hyperspectral Images Based on Pure Pixel Extraction
Wenzhong Tian;Qingzhan Zhao;Za Kan;Xuefeng Long;Hanqing Liu;Juntao Cheng
Signal-to-noise ratio (SNR) is an important radiation characteristic parameter for remote sensing image quality assessment as well as a key performance indicator for remote sensing sensors. At present, the SNR estimation methods based on regular segmentation or continuous segmentation are generally used to obtain image SNR. However, the land cover type has a great influence on the results of the S...Show More
Isolation of bioactive compounds from marine mollusk against human pathogens
2014 International Conference on Science Engineering and Management Research (ICSEMR)
Year: 2014 | Conference Paper |
The present study involved the isolation and structural elucidation of the active constituent of gastropod, Drupa margariticola extract using different Chromatographic techniques and various tools of spectral analysis. The acetone phase of the D. margariticola showed promising activity indicating the presence of active fractions. The active compound, diterpenoid acylglycerol which has been isolate...Show More
The Accelerated Testing of Plastic Encapsulated Semiconductor Components
12th International Reliability Physics Symposium
Year: 1974 | Conference Paper |
Cited by: Papers (17)
Elevated temperature and elevated humidity have been studied as stress factors for predicting the reliability of plastic encapsulated bipolar semiconductor components. The test transistors used in the study were encapsulated in a variety of epoxy resins and a silicone resin the purity of which were characterised by a determination of the conductivity of an aqueous extract of the resin. Both stress...Show More
Modeling and control of a leaching unit for sunflower oil extraction
2023 IEEE 6th Colombian Conference on Automatic Control (CCAC)
Year: 2023 | Conference Paper |
Cited by: Papers (1)
In the leaching process alternative solvents to hexane have been studied to reduce the emissions of volatile organic compounds to the atmosphere. Ethanol is considered as an alternative solvent because it is cheap and it can be produced by fermentation from a large variety of biological materials using simple technology. In this paper a phenomenological-based semi-physical model (PBSM) for ethanol...Show More
Mycosynthesis of Silver Nanoparticles from Ganoderma Lucidum: Optimization, Antioxidant Activity, and Identification of Capping Agents
Krishia Rei A. Javier;Anna Karen C. Laserna;Drexel H. Camacho
2023 IEEE 23rd International Conference on Nanotechnology (NANO)
Year: 2023 | Conference Paper |
Silver nanoparticles (AgNPs) attracted great interest due to their advantages with respect to their physicochemical properties. Employing the green approach, this work explored the synthesis of AgNPs using Ganoderma lucidum, investigated the metabolites that act as capping agents, and studied their antioxidant properties. To obtain the synthesis optimal condition, Central Composite Design (CCD) wa...Show More
Comparative Study of Furfural’s Raman Spectroscopy Detection in oil based on two kinds of Extractants
Weiran Zhou;Weigen Chen;Fu Wan;Haiyang Shi;Shuhua Zhang;Jiayi Zhang;Chengzhi Zhu
2019 IEEE 20th International Conference on Dielectric Liquids (ICDL)
Year: 2019 | Conference Paper |
Cited by: Papers (2)
How to accurately detect the concentration of furfural in transformer oil plays an important role in the analysis of the aging state of the transformer. As a fast and non-destructive detection method, Raman spectroscopy is the key to improving the sensitivity of Raman detection. In this paper, based on the extraction technique, the deionized water and methanol are used as extractants to carry out ...Show More
Studies on antagonistic effect of streptomyces species collected from polluted and non polluted environment
International Conference on Green technology and environmental Conservation (GTEC-2011)
Year: 2011 | Conference Paper |
Actinomycetes were widely distributed in soil are the source of antibiotics. Antibiotic resistant pathogens pose an enormous threat to the treatment of wide range of serious infections. To overcome this emergence, a periodic replacement of the new and existing antibiotic is necessary, simultaneously doses also increasing day by day for the patients, which is carcinogen to the body. The pure form a...Show More
Microwave permittivity extraction of individual biological cells submitted to different stimuli
2017 IEEE MTT-S International Microwave Symposium (IMS)
Year: 2017 | Conference Paper |
Cited by: Papers (13)
This paper describes, for the first time, the relative permittivity extraction of cells in their culture medium submitted to different stimuli by using a microwave biosensor, specifically developed to analyze single cells. The sensitive part of the device is constituted by a 5 μm coplanar gap, over which the cell is blocked by a mechanical trap. It allows to obtain the capacitive and conductive co...Show More
Rapid Human Body Detection in Disaster Sites Using Image Processing from Unmanned Aerial Vehicle (UAV) Cameras
2018 International Conference on Intelligent Informatics and Biomedical Sciences (ICIIBMS)
Year: 2018 | Conference Paper |
Cited by: Papers (12)
The development and impact of technology on our everyday lives cannot be compared with the world our ancestors lived in several decades ago. This is described as the world of technology (WoT). But despite all the advancements in technologies, understanding of the mechanisms of nature and the damages caused via natural disasters, such as earthquakes, landslides, and flooding to mention only a few, ...Show More
A hierarchical processing method for subpixel surface water mapping from highly heterogeneous urban environments using Landsat OLI data
2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Year: 2016 | Conference Paper |
Cited by: Papers (5)
A hierarchical method for subpixel surface water mapping accounting for the high spectral heterogeneity of urban materials is proposed in this paper. Specifically, we first applied water index (WI) for remote sensing image classification at pixel level, afterwards, the land, water, and land-water mixture can be extracted automatically. Then the spectral mixture analysis (SMA) is applied to land-wa...Show More
Turmeric (Curcumin longa) is extensively used as a spice, food preservative and coloring material in South Asian countries including India and Sri Lanka. Curcumin is the main active compound and the main coloring agent of the turmeric rhizome. Study consisted of incorporation of extracted curcumin as a natural colorant to produce biscuit filling, pasta and extruded snack through mechanical beating...Show More
A Method for Hyperspectral Images Classification using Spectral Correlation
2018 37th Chinese Control Conference (CCC)
Year: 2018 | Conference Paper |
To reduce the effects of information redundancy caused by noise and band correlation on the hyperspectral image analysis, a method for hyperspectral images classification using Spectral Correlation(HCSC) is proposed. Firstly, the hyperspectral images are preprocessed. Secondly, band selection algorithm based on correlation coefficient(BCCS) is proposed to reduce the information redundancy caused b...Show More
Research on Dielectric Properties about Different Curing Degree of Epoxy Glass Fiber
Haoxiang Zhao;Daning Zhang;Jie Tian;Xiaowei Liu;Chaobin Niu;Haibao Mu;Guanjun Zhang
2018 Condition Monitoring and Diagnosis (CMD)
Year: 2018 | Conference Paper |
In order to explore the influence of curing process on production practice, the wide frequency dielectric spectroscopy measurement of epoxy resin and epoxy glass fiber was made. Combined with dielectric spectroscopy, dielectric parameters with frequency and temperature were discussed. Meanwhile, frequency domain characteristics of dielectric parameters were investigated under different curing temp...Show More
Analysis of Methanol in Transformer Oil Based on Extraction and Silver Nanosubstrate
Yiyi Zhang;Hao Wan;Wenchang Wei;Lingyu Wan;Chuanhui Xu;Huilu Yao;Liuyan Li
Currently, the method of detecting methanol in transformer oil by surface-enhanced Raman spectroscopy (SERS) possesses the disadvantages of high cost, long time, and difficulty in field testing. To tackle this problem, a novel method was proposed for the combination of extraction and silver nanosubstrate to detect dissolved methanol in transformer oil. Specifically, it was determined first by Gaus...Show More
Biophysicochemical evaluation of passivation layers for the packaging of silicon microsystems in medical devices
Jorge Mario Herrera Morales;Jean-Charles Souriau;David Ratel;François Berger;Gilles Simon
2014 IEEE 64th Electronic Components and Technology Conference (ECTC)
Year: 2014 | Conference Paper |
Cited by: Papers (3)
This paper is dedicated to the research and development of hermetic and biocompatible packaging of microelectronic devices for medical applications. Materials such as Al2O3, HfO2, TiO2, ZnO, SiN, SiO2, SiOC, SiC, a-CH, and BN which had been reported as biocompatible and compatible with fabrication in standard clean rooms were studied. As there were many candidate materials, a method for selecting ...Show More
A Systematic Method to Explore Radio-Frequency Non-Thermal Effect on the Growth of Saccharomyces Cerevisiae
Radio frequency (RF) non-thermal (NT) bio-effects have been a subject of debate and attracted significant interests due to potential health risks or beneficial applications. In this work, we report a systematic method for broadband investigation of RF NT effects on Saccharomyces cerevisiae yeast growth. The method includes a transverse electro-magnetic (TEM) device and a dielectric spectros...Show More
Manipulation of single fine particle in liquid by electrical force in combination with optical pressure
Opt-electrostatic micromanipulation, which utilizes electrical force in combination with the optical pressure of a focused laser beam, is proposed in order to manipulate biological cells or molecules. The optical pressure has two components: the optical confinement pressure and the optical drift pressure. Due to the optical confinement pressure, cells can be confined in the focused laser beam. The...
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Show MoreDual-modality probe for characterization of heterogeneous mixtures
T. Dyakowski;J.M. Hale;A. Jaworski;N.M. White;A. Nowakowski;G. Meng;S. Rwifa
This paper presents a laboratory feasibility study aiming at the development of a dual modality sensor for development within an oil and gas extraction plant to measure the composition of heterogeneous mixtures. The technology of manufacturing the sensor is briefly described and the preliminary measurements, conducted for mixtures of vegetable oil and saline water, using two modalities: ultrasound...Show More
Natural dye-sensitized solar cells containing anthocyanin dyes extracted from frozen blueberry using column chromatography method
2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC)
Year: 2018 | Conference Paper |
Cited by: Papers (6)
A Dye-sensitized solar cells were fabricated using anthocyanin dyes extracted from frozen blueberry using the column chromatography method. To determine the best anthocyanin extraction protocol, we tested different kinds of developing solvents by changing the ratio of methanol, acetic acid, or HCL, and pure water. In addition, we used three kinds of frozen blueberries: soaked in acetic acid for 24...Show More
Microalgae-Induced Photodegradation of Bisphenol F under Simulated Sunlight
2009 3rd International Conference on Bioinformatics and Biomedical Engineering
Year: 2009 | Conference Paper |
Cited by: Papers (4)
Like BPA, bisphenol F (BPF) was used in the production of epoxy resins and polycarbonates and it was shown to be a xenoestrogen. The photodegradation of bisphenol F (BPF) in the presence of algae was investigated under the irradiation of metal halide lamps placed in cooling trap for maintaining constant temperature by water circulation (lambdages365 nm, 250 W). The effect of algae concentration, i...Show More
Signal integrity issues in ASIC and FPGA design
IEEE 1997, EMC, Austin Style. IEEE 1997 International Symposium on Electromagnetic Compatibility. Symposium Record (Cat. No.97CH36113)
Year: 1997 | Conference Paper |
Cited by: Papers (4)
Most often when addressing electromagnetic compatibility issues in the electronic design of analog and digital circuits, EMC principles such as grounding, coupling, emissions, shielding, etc. are commonly scrutinized. Studies and research within EMC normally extends to the more fundamental principles of interference and compatibility as developed from the basic framework of electromagnetic theory....Show More
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