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25 Newest Publications about the topic centrifuges

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Massive Materieinjektion in das Ultrahochvakuum thermonuklearer Fusionsanlagen

06-Dec-2017 | Mathias Dibon, Peter Lang, Gabriella Pautasso, Albrecht Herrmann, Vitus Mertens, Rudolf Neu, Bernhard Ploeckl, Vakuum in Forschung und Praxis, 2017

Zusammenfassung Die Injektion großer Mengen von Material in Fusionsplasmen ist eine der technischen Herausforderungen heutiger Fusionsforschung. Die Einbringung verschiedener Stoffe hat zum Ziel, Brennstoff in das Plasma einzubringen, Instabilitäten zu kontrollieren, den Energieeinschluss des ...

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[Feature] A year after the deal, nuclear collaborations languish

09-Sep-2016 | Richard Stone, Science , 2016

In Iran, the nuclear agreement signed last year with world powers isn't popular. Economic payoffs have been slow to materialize, and resentment over years of isolation and sanctions remains strong. Getting Iranian and foreign scientists to work together is a potential salve that could also make ...

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Lab-on-a-Drone: Toward Pinpoint Deployment of Smartphone-Enabled Nucleic Acid-Based Diagnostics for Mobile Health Care

21-Apr-2016 | Aashish Priye; Season Wong; Yuanpeng Bi; Miguel Carpio; Jamison Chang; Mauricio Coen; Danielle Cope; Jacob Harris; J ..., Analytical Chemistry, 2016

We introduce a portable biochemical analysis platform for rapid field deployment of nucleic acid-based diagnostics using consumer-class quadcopter drones. This approach exploits the ability to isothermally perform the polymerase chain reaction (PCR) with a single heater, enabling the system to be ...

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Modeling separation processes in decanter centrifuges by considering the sediment build‐up

07-Aug-2015 | Marco Gleiss, Hermann Nirschl, Chemical Engineering & Technology, 2015

Abstract This work focussed on the mathematical modeling of the separation process in counter‐current decanter centrifuges, taking the influence of the sediment build‐up and the flow pattern into account. Thus far, separation processes in centrifuges are calculated by means of simplified ...

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[In Depth] Iran nuclear deal holds ‘goodies’ for scientists

24-Jul-2015 | Richard Stone, Science , 2015

When Iran agreed last week to dismantle large chunks of its nuclear infrastructure, it won more than the promise of relief from crippling economic sanctions. If the agreement survives strong opposition in the U.S. Congress, Iran can expect a rapid expansion of scientific cooperation with Western ...

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β-Lactoglobulin Self-Assembly: Structural Changes in Early Stages and Disulfide Bonding in Fibrils

05-Aug-2013 | Anant C. Dave; Simon M. Loveday; Skelte G. Anema; Trevor S. Loo; Gillian E. Norris; Geoffrey B. Jameson; Harjinder Singh, Journal of Agricultural and Food Chemistry, 2013

Bovine β-lactoglobulin (β-Lg) self-assembles into long amyloid-like fibrils when heated at 80 °C, pH 2, and low ionic strength ...

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Graphene Nanoelectrodes: Fabrication and Size-Dependent Electrochemistry

26-Jun-2013 | Bo Zhang; Lixin Fan; Huawei Zhong; Yuwen Liu; Shengli Chen, Journal of the American Chemical Society, 2013

The fabrication and electrochemistry of a new class of graphene electrodes are presented. Through high-temperature annealing of hydrazine-reduced graphene oxides followed by high-speed centrifugation and size-selected ultrafiltration, flakes of reduced graphene oxides (r-GOs) of nanometer and ...

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Multi-mycotoxin Analysis of Finished Grain and Nut Products Using High-Performance Liquid Chromatography–Triple-Quadrupole Mass Spectrometry

08-May-2013 | Chia-Ding Liao; Jon W. Wong; Kai Zhang; Douglas G. Hayward; Nathaniel S. Lee; Mary W. Trucksess, Journal of Agricultural and Food Chemistry, 2013

Mycotoxins in foods have long been recognized as potential health hazards due to their toxic and carcinogenic properties. A simple and rapid method was developed to detect 26 mycotoxins (aflatoxins, ochratoxins, fumonisins, trichothecenes, and ergot alkaloids) in corn, rice, wheat, almond, ...

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Pseudo two‐dimensional modelling of sediment buildup in centrifuges ‐ a compartment approach using compressional rheology

10-Apr-2013 | Lars E. Spelter, Hermann Nirschl, Anthony D. Stickland, Peter J. Scales, AIChE Journal, 2013

Abstract This work presents both a new modelling approach and new experimental data for the sediment build‐up in centrifuges. In semi‐batch apparatus, the suspension is continuously fed to the centrifuge, separating the particles inside the rotor and discharging the clarified liquid. The solid ...

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A reproducible method to enrich membrane proteins with high‐purity and high‐yield for an LC‐MS/MS approach in quantitative membrane proteomics

20-Jan-2013 | Xianyin Lai, ELECTROPHORESIS, 2013

The proportionately low abundance of membrane proteins hampers their proteomic analysis, especially for a quantitative LC‐MS/MS approach. To overcome this limitation, a method was developed that consists of one cell disruption step in a hypotonic reagent using liquid nitrogen, one isolation step ...

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