1,239 research outputs found
Synthese und Charakterisierung von binären Molekülverbindungen der Gruppe 15 Elemente mit P 2
Wirkungen reaktiver Sauerstoffspezies: Charakterisierung zweier ROS-sensitiver Gene und ihre Rolle bei der Kontrolle des zellulären Wachstums
The integration of visual arts and literacy in the elementary school classroom
The arts have been an area of the elementary curriculum commonly eliminated from the everyday routine due to pressures of the implementation of NCLB. Because of the dwindling time spent on the arts, many students are not given the opportunity to learn through the methods that best meet their needs. This project discussed the brain research of Jensen and multiple intelligences by Gardner, that support the use of arts in schools. From meeting the needs of learning styles by presenting information in a multitude of ways through arts, to the benefits of the inclusion of arts on the brain, the integration of the arts was demonstrated by the researchers as effective and necessary. The purpose of this project was to illustrate the necessity for the inclusion of the visual arts in the elementary school classroom. This project provided elementary teachers with lessons for weaving the arts into the everyday literacy curriculum. Areas such as Art Basics, Art and Fiction, Art and Nonfiction, Art and Comprehension, and Art as a Response to Literature, were sections found in this project to assist teachers with integrating visual arts and literacy
Prospectus, May 4, 1983
EPILEPSY EDUCATION NEEDED FOR PUBLIC UNDERSTANDING; News Digest; Eddie Simpson elected as new StuGo president: Election turnout down to 272; Organization of Year awarded to C.A.A.R.; Simpson thanks voters; Secretaries deserve honor; C-U Happenings; Coming; Parkland celebrates South Annex opening; Classified; Champaign releases second winner; Series crosses age barriers with intelligence; Berlin ripples new wave; Women take section tourney; Parkland men lose two; Prepared for finals?https://spark.parkland.edu/prospectus_1983/1017/thumbnail.jp
Bestimmung des Bodenreibungsbeiwertes und der Oberflächenreibung eisbedeckter Wasserflächen im Meiningenstrom der Darß-Zingster Boddenkette und Anwendung auf vertikal integrierte hydronumerische Modelle
In einem hydronumerischen Modell zur Prognose des Strömungs- und Wasserstandsfeldes flacher Gewässer wird eine auf der Turbulenztheorie basierende Tiefenkorrektur für den Bodenreibungsbeiwertwert eingeführt und auf der Basis von Berechnungen für die DarßZingster Boddenkette überprüft. Für einen ausgewählten Meßpunkt der Darß-Zingster Boddenkette wurde der Reibungsbeiwert sowohl am Boden als auch unter einer Eisschicht experimentell bestimmt. Die Auswirkungen einer Tiefenkorrektur des Reibungsbeiwertes wurden in einem vertikal integrierten hydronumerischen Modell untersucht. Dabei wurden die experimentell
bestimmten Reibungsbeiwerte, sowohl für die Reibung am Boden, als auch für die Reibung unter einer Eisschicht im Modell benutzt. Das verwendete Modell zeigt mit den gemessenen Reibungsbeiwerten nach Einführung der Tiefenkorrektur eine bessere Übereinstimmung zwischen Modelldaten und amtlichen Pegelregistrierungen.For simulation of the flow and water level field in shallow water is introduced a depth correction of the bottom drag coefficient based on the theory of turbulence in a hydronumerical model and tested on calculations for the "Darß-Zingster Boddenkette". The drag coefficient was determined experimentally on the bottom and under ice for a selected measurement point in the "Darß-Zingster Boddenkette". The result of the depth correction was tested with a depth integrated
hydronumerical model. The experimentally deterrnined drag coefficient on the bottom and under ice was introduced in the model. The used model shows with the measured drag coefficient after using the depth correction better agreement between the numerically simulated and measured water level
Miniaturized ceramic-based microbial fuel cell for efficient power generation from urine and stack development
© 2018 Gajda, Stinchcombe, Merino-Jimenez, Pasternak, Sanchez-Herranz, Greenman and Ieropoulos. One of the challenges in Microbial Fuel Cell (MFC) technology is the improvement of the power output and the lowering of the cost required to scale up the system to reach usable energy levels for real life applications. This can be achieved by stacking multiple MFC units in modules and using cost effective ceramic as a membrane/chassis for the reactor architecture. The main aim of this work is to increase the power output efficiency of the ceramic based MFCs by compacting the design and exploring the ceramic support as the building block for small scale modular multi-unit systems. The comparison of the power output showed that the small reactors outperform the large MFCs by improving the power density reaching up to 20.4 W/m3 (mean value) and 25.7 W/m3 (maximum). This can be related to the increased surface-area-to-volume ratio of the ceramic membrane and a decreased electrode distance. The power performance was also influenced by the type and thickness of the ceramic separator as well as the total surface area of the anode electrode. The study showed that the larger anode electrode area gives an increased power output. The miniaturized design implemented in 560-units MFC stack showed an output up to 245 mW of power and increased power density. Such strategy would allow to utilize the energy locked in urine more efficiently, making MFCs more applicable in industrial and municipal wastewater treatment facilities, and scale-up-ready for real world implementation
Supercapacitive microbial fuel cell: Characterization and analysis for improved charge storage/delivery performance
© 2016 The Author(s) Supercapacitive microbial fuel cells with various anode and cathode dimensions were investigated in order to determine the effect on cell capacitance and delivered power quality. The cathode size was shown to be the limiting component of the system in contrast to anode size. By doubling the cathode area, the peak power output was improved by roughly 120% for a 10ms pulse discharge and internal resistance of the cell was decreased by ∼47%. A model was constructed in order to predict the performance of a hypothetical cylindrical MFC design with larger relative cathode size. It was found that a small device based on conventional materials with a volume of approximately 21cm3 would be capable of delivering a peak power output of approximately 25mW at 70mA, corresponding to ∼1300Wm−3
Towards effective small scale microbial fuel cells for energy generation from urine
© 2016 The Authors. Published by Elsevier Ltd. To resolve an increasing global demand in energy, a source of sustainable and environmentally friendly energy is needed. Microbial fuel cells (MFC) hold great potential as a sustainable and green bioenergy conversion technology that uses waste as the feedstock. This work pursues the development of an effective small-scale MFC for energy generation from urine. An innovative air-cathode miniature MFC was developed, and the effect of electrode length was investigated. Two different biomass derived catalysts were also studied. Doubling the electrode length resulted in the power density increasing by one order of magnitude (from 0.053 to 0.580 W m-3). When three devices were electrically connected in parallel, the power output was over 10 times higher compared to individual units. The use of biomass-derived oxygen reduction reaction catalysts at the cathode increased the power density generated by the MFC up to 1.95 W m-3, thus demonstrating the value of sustainable catalysts for cathodic reactions in MFCs
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