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54.197 Aktuelle Fachpublikationen zum Thema temperature

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Photovoltaic solar array: Modeling and output power optimization

30.04.2016 | Zerhouni M'hamed Houari, Zerhouni Fatima Zohra, Zegrar Mansour, Tilmatine Amar, Environmental Progress, 2016

Photovoltaic energy is a natural form of energy and can replace conventional fuels. The photovoltaic performance depends mainly on the incident solar irradiation, temperature, photovoltaic generator material composition. This article proposes a method of photovoltaic arrays modeling. With data ...

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Ultrasonic Pretreatment Improves the High Temperature Liquefaction of Corn Starch at High Concentrations

30.04.2016 | Caiming Li, Wenjing Liu, Zhengbiao Gu, Dan Fang, Yan Hong, Li Cheng, Zhaofeng Li, Starch - Stärke, 2016

Abstract The effects of ultrasonic pretreatment on the liquefaction of corn starch at a high concentration were investigated using viscosity and reducing sugar content as the endpoints. The mechanism of the process was also analyzed. The results showed that the viscosity of sonicated starch ...

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Modelling Investigation and Parameters Study of Polyphenols Extraction from Carob (Ceratonia siliqua L.) Using Experimental Factorial Design

30.04.2016 | Bilel Hadrich, Krasimir Dimitrov, Karim Kriaa, Journal of Food Processing and Preservation, 2016

Abstract Kinetics of aqueous extraction of polyphenols from carob (Ceratonia siliqua L.) have been performed in different conditions (Temperature = 40 and 60C; solid–liquid ratio = 1:3 and 1:19 and without and with ultrasonic assistance (100W)). The effects of various parameters were studied ...

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Effect on Physicochemical and Thermal Properties of Buckwheat (Fagopyrum esculentum) Starch by Acid Hydrolysis Combined with Heat Moisture Treatment

30.04.2016 | Mudasir Ahmad Malik, D.C. Saxena, Journal of Food Processing and Preservation, 2016

Abstract Starch extracted from buckwheat was modified by acid hydrolysis combined with heat moisture treatment (AH‐HMT) and evaluated for physicochemical and thermal properties. A three‐level, five‐factor central composite design was used to study the individual and combined effects of pH (2 ...

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Iron oxide nanotube film formed on carbon steel for photoelectrochemical water splitting: effect of annealing temperature

29.04.2016 | Hongda Deng, Mao‐Chia Huang, Wei‐Heng Weng, Jing‐Chie Lin, Surface and Interface Analysis, 2016

Carbon steels (CSs) were anodized in an ethylene glycol solution containing 3 vol.% H2O and 0.1 m NH4F to coat with nanotube arrays film. The as anodized nanotube arrays film were annealed in argon atmosphere at various temperatures ranging from 250 to 550 °C for 4 h. The morphology and crystal ...

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Advanced CFD Analysis of an Air‐cooled PEM Fuel Cell Stack Predicting the Loss of Performance with Time

29.04.2016 | C. Fink, L. Karpenko‐Jereb, S. Ashton, Fuel Cells, 2016

Abstract The PEM fuel cell simulation package developed by AVL List GmbH is coupled with a semi‐empirical degradation model describing the dependency of material parameters on operating conditions. The CFD model calculates the 3D distributions of electronic/ionic potentials, velocity, ...

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Engineering model for intumescent coating behavior in a pilot‐scale gas‐fired furnace

29.04.2016 | Kristian Petersen Nørgaard, Kim Dam‐Johansen, Pere Català, Søren Kiil, AIChE Journal, 2016

Abstract In the event of a fire, intumescent fire protective coatings expand and form a thermally insulating char that protects the underlying substrate from heat and subsequent structural failure. The intumescence includes several rate phenomena, which have been investigated and quantified in ...

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Fully Automated Field-Deployable Bioaerosol Monitoring System Using Carbon Nanotube-Based Biosensors

29.04.2016 | Junhyup Kim; Joon-Hyung Jin; Hyun Soo Kim; Wonbin Song; Su-Kyoung Shin; Hana Yi; Dae-Ho Jang; Sehyun Shin; Byung Yan ..., Environmental Science & Technology, 2016

Much progress has been made in the field of automated monitoring systems of airborne pathogens. However, they still lack the robustness and stability necessary for field deployment. Here, we demonstrate a bioaerosol automonitoring instrument (BAMI) specifically designed for the in situ capturing ...

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A Photo‐triggered Traceless Staudinger‐Bertozzi Ligation Reaction

28.04.2016 | Peng Hu, Tianshi Feng, Chi-Chung Yeung, Chi-Kin Koo, Kai-Chung Lau, Michael Hon-Wah Lam, Chemistry - A European Journal, 2016

The use of light to control the course of a chemical/biochemical reaction is an attractive idea because of its ease of administration with high precision and fine spatial resolution. Staudinger ligation is one of the commonly adopted conjugation processes that involve a spontaneous reaction ...

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Mixed‐halide CH3NH3PbI3‐xXx (X = Cl, Br, I) perovskites: Vapor assisted solution deposition and application as solar cell absorbers

28.04.2016 | Rahime Sedighi, Fariba Tajabadi, Saeed Shahbazi, Somayeh Gholipour, Nima Taghavinia, ChemPhysChem, 2016

There have been recent reports on the formation of single halide perovskites CH3NH3PbX3 (X= Cl, Br, I) using vapor assisted solution processing. Herein, we report successful formation of mixed halide perovskites (CH3NH3PbI3‐xXx) using a vapor assisted solution method at ambient atmosphere. The ...

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