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66 results for “microwave”
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Research ArticleOpen accessEvery word in the titleUltrasonic Microwave Assisted Extraction, Chemical Characterization and Antioxidant Activity of Polysaccharides from Fig LeavesBaikangzhe Zheng, Yang Miao, Yi Zhou et al.This study employed ultrasonic-microwave-assisted extraction (UMAE) to isolate water-soluble polysaccharides from fig (Ficus carica L.) leaves (FLPs). Polysaccharide yield was used as the primary index to evaluate extraction efficiency. The effects of material-liquid ratio, microwave power, extraction temperature, and extraction time on polysaccharide yield were systematically investigated through single-factor experiments, followed by response surface methodology optimization. Structural characterization and antioxidant … …American Journal of Biochemistry and Biotechnology, Vol. 21, Issue 4 · 3 Mar 2026 · 1,671 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleRain Events Detection using Energy Variation of Commercial Microwave Links AttenuationWend Yam Serge Boris Ouedraogo, Moumouni Djibo, Ali Doumounia et al.In this study, we propose a new method for detecting wet periods by using telecommunications Commercial Microwave Links (CML). The purpose of the study is to automatically find rain time slots. The attenuation of the microwave signal, propagating between a transmitting antenna and a receiving one, due to the variations of the climatic conditions over the link, is a non-stationary … …American Journal of Applied Sciences, Vol. 19, Issue 1 · 20 Aug 2022 · 6,287 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleOptimization of Ultrasonic/Microwave Assisted Extraction (UMAE) and Rheological Properties of Polysaccharides from Auricularia polytrichaZe Zhang, Xiao Ding, Ziyi Xu et al.Polysaccharides from Auricularia polytricha (APPS) were extracted using Ultrasonic/Microwave Assisted Extraction (UMAE) technology. UMAE conditions of APPS were optimized with Response Surface Methodology (RSM). Rheological properties of APPS were investigated. The results suggested that the optimal UMAE conditions for APPS were ratio of water to raw material 22 (mL/g), extraction time 15.3 min and microwave power 59W. APPS solution exhibited … …American Journal of Biochemistry and Biotechnology, Vol. 16, Issue 1 · 14 Mar 2020 · 7,420 accessesView PDFCite
Review ArticleOpen accessEvery word in the titleMicrowave-Sensitive Reactors to the Rescue: From Microwave-Assisted Chemistry to Environmental ApplicationsGjergji Shore, Dhimitri Gusho, Hassan Hassan, Eugenia GjurajThe idea of using microwave sensitive reactors is relatively new in chemistry and environmental areas. Applications in both areas might be different but the effects can be amazing. Flow through reactors coated with thin metallic films using a variety of deposition techniques have been used as vessels to conduct reactions in flow under microwave irradiation. The metal coating not only … …American Journal of Applied Sciences, Vol. 15, Issue 5 · 23 May 2018 · 8,119 accessesView PDFCite
Review ArticleOpen accessEvery word in the titleContinuous Flow Synthesis of Zeolite-A from Coal Fly Ash Utilizing Microwave Irradiation with Recycled Liquid StreamSalman Bukhari, Sohrab RohaniCoal Fly Ash (CFA) was converted to zeolite using continuous microwave reactors while minimizing the wastewater produced during the zeolitization process. At bench scale, a continuous flow tubular microwave reactor was used to explore the effect of microwave irradiation on the crystallinity of the product. The waste water was reused in consecutive runs and Inductively Coupled Plasma (ICP) analysis was … …American Journal of Environmental Sciences, Vol. 13, Issue 3 · 19 Jun 2017 · 7,237 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Microwave Pretreatment on BMP of Decanter Cake from Palm Oil Mill FactoryThaniya Kaosol, Worawuth RungarunanotaiAnaerobic digestion is an effective method for treating decanter cake in the biogas production. Decanter cake usage is limited by its slow fiber degradation for anaerobic digestion process. The aim of this study is to study the possibility of using microwave pretreatment to enhance decanter cake digestibility. The power and heating time are the parameters that influence the biogas production … …American Journal of Applied Sciences, Vol. 13, Issue 5 · 23 May 2016 · 7,625 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleMicrowave-Assisted Co-Pyrolysis of Bamboo Biomass with Plastic Waste for Hydrogen-Rich Syngas ProductionN. Saifuddin, P. Priatharsini, S.B. HakimConcerns about diminishing fossil fuels and increasing greenhouse gas emissions are driving many countries to develop renewable energy sources. The knowledge of the dielectric property is essential to design and develop microwave technology for processing biomass materials. Bamboo biomass was subjected to microwave pyrolysis, to determine the influence of each process on the yield and composition of the derived gas, … …American Journal of Applied Sciences, Vol. 13, Issue 5 · 16 May 2016 · 9,121 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleOptimization of Microwave-Assisted Extraction of a Bioherbicide from Canavalia ensiformis LeavesDarlan Ferreira Silva, Eduardo Bessa Azevedo, Maria Olímpia Oliveira RezendeThe objective of this study was to optimize the operational conditions of the Microwave-Assisted Extraction (MAE) of Canavalia ensiformis leaves by Response Surface Methodology (RSM), based on analysis of phenolic compounds obtained from the aqueous extracts. Optimal conditions for MAE were temperature of 100°C, extraction time of 10 min and ramp of temperature of 5 min, using approximately 2 g … …American Journal of Environmental Sciences, Vol. 12, Issue 1 · 29 Feb 2016 · 7,612 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleOptimization of Total Phenolic from Cleistocalyx nervosum by Microwave-Assisted ExtractionNukrob Narkprasom, Kanjana Narkprasom, Umaporn UparaThe objective of this research was to extract phenolic compounds from Makiang (Cleistocalyx nervosum) seeds waste obtained from the elaboration of makiang beverages using the microwave assisted extraction method. The optimal conditions of microwave assisted extraction of total phenolics from makiang seeds were determined using response surface method. The variables of microwave power, extraction time and ethanol proportion on effect … …American Journal of Engineering and Applied Sciences, Vol. 8, Issue 3 · 29 May 2015 · 8,097 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Cosmic Microwave Background: A Strange CharacteristicA. DinculescuThe ratio of the self-gravitational energy density of the scattering particles in the universe to the energy density of the scattered photons in the Cosmic Microwave Background (CMB) is the same in any volume of space. These two energy densities are equal at a radiation temperature on the order of the present CMB temperature. …Space Science International, Vol. 1, Issue 2 · 11 Dec 2013 · 7,217 accessesView PDFCite