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Energy profiling of ISP points of presence

Edoardo Bonetto, Marco Mellia, Michela Meo
2012 2012 IEEE International Conference on Communications (ICC)  
Points of Presence (PoP), large aggregation nodes of a telecommunication network in which users lines are interconnected to the ISP backbone network, are relevant elements of the ISP network infrastructure  ...  Energy profiling spans a period of one year, and includes both ADSL and FTTH access technologies.  ...  We present measurement data of the energy consumption of FASTWEB Points-of-Presence (PoP), large network nodes that act as both aggregation points for user lines and large traffic switching points.  ... 
doi:10.1109/icc.2012.6364815 dblp:conf/icc/BonettoMM12 fatcat:6k7gmde34zeerlvyszvikt3s3a

The role of substrate specificity and metal binding in defining the activity and structure of an intracellular subtilisin

Michael Gamble, Georg Künze, Andrea Brancale, Keith S. Wilson, D. Dafydd Jones
2012 FEBS Open Bio  
The presence of >0.01 mM EDTA inactivates ISP, with CD and SEC suggesting that the protein becomes less structured and potentially monomeric.  ...  We demonstrate that both play roles in defining the proteolytic activity of Bacillus clausii ISP and propose the molecular basis of their effects.  ...  M.G. was funded by a Cardiff School of Biosciences studentship. G.K. was an Erasmus exchange student at Cardiff University. We also thank Novozymes A/S for continuing support of K.S.W.  ... 
doi:10.1016/j.fob.2012.07.001 pmid:23650602 pmcid:PMC3642151 fatcat:b34gxqr2d5dileplqjxfdd3ep4

Insights into isoprene production using the cyanobacterium Synechocystis sp. PCC 6803

Nadin Pade, Sabrina Erdmann, Heike Enke, Frederik Dethloff, Ulf Dühring, Jens Georg, Juliane Wambutt, Joachim Kopka, Wolfgang R. Hess, Ralf Zimmermann, Dan Kramer, Martin Hagemann
2016 Biotechnology for Biofuels  
Cyanobacteria are phototrophic prokaryotes that convert inorganic carbon as CO 2 into organic compounds at the expense of light energy.  ...  Conclusions: Our best production strains produced twofold higher isoprene amounts in the presence of low NaCl concentrations than previously reported strains.  ...  The gift of the specific IspS antibody by Prof. Anastasios Melis and Prof. Thomas D. Sharkey is greatly acknowledged.  ... 
doi:10.1186/s13068-016-0503-4 pmid:27096007 pmcid:PMC4836186 fatcat:nrain3nqhreldbof273msrft4e

Nanoparticle Electric Propulsion for Space Exploration

Thomas M. Liu, Louis D. Musinski, Prashant R. Patel, Alec D. Gallimore, Brian E. Gilchrist, Michael Keidar
2007 AIP Conference Proceedings  
A new electrostatic thruster technology is under development at the University of Michigan using nanoparticles as propellant with micro-and nano-electromechanical systems.  ...  nanoparticle field extraction thruster (nanoFET), this highly integrated propulsion concept is a high efficiency, variable specific impulse engine type that can be readily scalable for a large range of  ...  Thanks to Matthew Forsyth at the University of Michigan (UM) for helping to construct the proof-of-concept experimental setups.  ... 
doi:10.1063/1.2437518 fatcat:ivprgyju7ncynimcr35ofhd75e

Late-phase Spectropolarimetric Observations of Superluminous Supernova SN 2017egm to Probe the Geometry of the Inner Ejecta

Sei Saito, Masaomi Tanaka, Takashi J. Moriya, Mattia Bulla, Giorgos Leloudas, Cosimo Inserra, Chien-Hsiu Lee, Koji S. Kawabata, Paolo Mazzali
2020 Astrophysical Journal  
We thank the staff of Subaru Telescope for helping our observations. We thank Subhash Bose and Jon Mauerhan for providing the polarization data of SN 2017egm.  ...  We are grateful to the referee for careful reading of the manuscript and giving us useful comments.  ...  Such a geometry might suggest the presence of a central energy source producing a large asymmetry. Figure 1 . 1 Top panel: Spectrum of SN 2017egm at t=+185 days.  ... 
doi:10.3847/1538-4357/ab873b fatcat:fpss42pm7zb3jocyn3sqfvgijy

Proton-coupled electron transfer at the Qo-site of the bc1 complex controls the rate of ubihydroquinone oxidation

Antony R. Crofts
2004 Biochimica et Biophysica Acta - Bioenergetics  
is slow, and accounts for the altered kinetics in mutant strains in which the driving force and energy profile are modified by changes in E m and/or pK of ISP or heme b L .  ...  Incorporation of this relationship into a computer model allows exploration of the energy landscape.  ...  He introduced me to the important kinetic implications of the coupling, to the work of his colleague Dan Nocera on the model systems that provided essential insights to the controlling effect of the proton  ... 
doi:10.1016/j.bbabio.2003.10.012 pmid:15100020 fatcat:xuh5vqc4ufaxhgtmd5fzyir6vi

Super Soft All-Ethylene Oxide Polymer Electrolyte for Safe All-Solid Lithium Batteries

Luca Porcarelli, Claudio Gerbaldi, Federico Bella, Jijeesh Ravi Nair
2016 Scientific Reports  
The sum of these characteristics enlighten the striking prospects of the newly developed ISPE as electrolyte separators in both Li-ion and Li metal batteries conceived for high energy and/or power demanding  ...  Such heavy protective packaging reduces the overall amount of ready-to-use energy (energy density).  ...  Here, we propose the use of tetraglyme instead of RTIL, due to the presence of accessible protons in tetraglyme that can take part in the dehydrogenation reaction under UV irradiation in the presence of  ... 
doi:10.1038/srep19892 pmid:26791572 pmcid:PMC4726218 fatcat:ovhi76z7yfczdek5m2hi6rnwkq

Modulation of the Midpoint Potential of the [2Fe−2S] Rieske Iron Sulfur Center by QoOccupants in thebc1Complex†

Vladimir P. Shinkarev, Derrick R. J. Kolling, Tim J. Miller, Antony R. Crofts
2002 Biochemistry  
Using this formalism, we estimated that binding free energies for hydrogen bond formation with the Q o site occupant, range from the largest value of ∼23 kJ mol -1 in the presence of stigmatellin (appropriate  ...  The displacement of ubiquinone by myxothiazol leads to elimination of this preferential binding of the ISP reduced form and results in a shift in the midpoint potential of ISP to a more negative value.  ...  In the context of the ES complex, the spring loading would have two effects: (i) it would minimize the binding energy, and hence the trough in the reaction-energy profile; (ii) it would facilitate rapid  ... 
doi:10.1021/bi026198c pmid:12450404 fatcat:lw6taxaxg5ehngvtjgmibhopcu

Two-Electron Linear Intersubband Light Absorption in a Biased Quantum Well

J. Dai, M. E. Raikh, T. V. Shahbazyan
2006 Physical Review Letters  
We point out a novel manifestation of many-body correlations in the linear optical response of electrons confined in a quantum well.  ...  Namely, we demonstrate that along with conventional absorption peak at frequency close to intersubband energy, there exists an additional peak at double frequency.  ...  Concluding remarks -The lineshape of new peak is governed by three energy scales: sharp rise within the energy interval 2∆ − 2E F < ω < 2∆, slow decay for ω > 2∆, and a sharp two-ISP peak of the width  ... 
doi:10.1103/physrevlett.96.066803 pmid:16606029 fatcat:7wpyowvx3jh4jcdhxwbj5dz3vq

Jiangella alba sp. nov., an endophytic actinomycete isolated from the stem of Maytenus austroyunnanensis

S. Qin, G.-Z. Zhao, J. Li, W.-Y. Zhu, L.-H. Xu, W.-J. Li
2009 International Journal of Systematic and Evolutionary Microbiology  
and D-xylose as sole carbon and energy sources.  ...  A detailed comparison of the fatty acid profiles is given in Supplementary Table S1 (available in IJSEM Online).  ... 
doi:10.1099/ijs.0.009001-0 pmid:19605701 fatcat:wzqwxgacnjexfl3xl44coxrwze

Wet and dry flexural high cycle fatigue behaviour of fully bioresorbable glass fibre composites: In-situ polymerisation versus laminate stacking

Menghao Chen, Jiawa Lu, Reda M. Felfel, Andrew J. Parsons, Derek J. Irvine, Christopher D. Rudd, Ifty Ahmed
2017 Composites Science And Technology  
Consequently, ISP composites with 35% V f maintained at least 50% of its flexural 33 properties after the fatigue failure, which the mechanical retentions were well matched with the 34 properties of human  ...  Regardless of testing 27 conditions, increasing fibre content led to shorter fatigue life for the PCL/PGF composites. 28 Meanwhile, immersion in degradation media caused softening of both LS and ISP composites  ...  verses applied maximum load for LS and ISP composites: (a) in dry conditions; (b) in wet conditions; Arrows point to the CAS values of the composites.  ... 
doi:10.1016/j.compscitech.2017.07.006 fatcat:67r44v2otbcvhdqxseomof3nqq

Towards a Modular Energy Systems Framework for Neural Energy Islands

Konstantinos Tsatsakis, Giorgos Papadopoulos
2022 Zenodo  
a cost-efficient pathway for local energy system optimization in the presence of high volumes of variable and intermittent renewable energy sources.  ...  In response to these challenges we propose an innovative district-level energy management framework for areas where the presence of high shares of distributed renewable energy sources and battery systems  ...  level, the proposed solution can offer a cost-efficient pathway for local energy system optimization in the presence of high volumes of variable and intermittent renewable energy sources.  ... 
doi:10.5281/zenodo.6779193 fatcat:ae5xmn3cgbhllpa4p5hukcdygi

Investigation of deuterium trapping and release in the JET ITER-like wall divertor using TDS and TMAP

J. Likonen, K. Heinola, A. De Backer, A. Baron-Wiechec, N. Catarino, I. Jepu, C.F. Ayres, P. Coad, S. Koivuranta, S. Krat, G.F. Matthews, M. Mayer (+1 others)
2019 Nuclear Materials and Energy  
Experimental deuterium profiles obtained with SIMS have been used and the detrapping and the activation energies have been adjusted.  ...  Experimental TDS spectra for samples from the top part of inner divertor and from the outer strike point region were modelled using TMAP program.  ...  The views and opinions expressed herein do not necessarily reflect those of the European Commission.  ... 
doi:10.1016/j.nme.2019.02.031 fatcat:kzh36b3nhnfdzfql553uvxatsm

Energy-Aware Backbone Networks: A Case Study

L. Chiaraviglio, M. Mellia, F. Neri
2009 2009 IEEE International Conference on Communications Workshops  
Power consumption of ICT is becoming more and more a sensible problem, which is of interest for both the research community, for ISPs and for the general public.  ...  possible to easily achieve more than 23% of energy saving per year, i.e., to save about 3GWh/year considering today's power footprint of real network devices.  ...  ACKNOWLEDGMENT The work described in this paper was performed with the support of the BONE project (Building the Future Optical Network in Europe), funded by the European Commission through the 7th Framework  ... 
doi:10.1109/iccw.2009.5208038 fatcat:nf7rbsu7y5gsva2eznok5dijjq

Effect of H bond removal and changes in the position of the iron–sulphur head domain on the spin–lattice relaxation properties of the [2Fe–2S]2+ Rieske cluster in cytochrome bc1

Marcin Sarewicz, Małgorzata Dutka, Rafał Pietras, Arkadiusz Borek, Artur Osyczka
2015 Physical Chemistry, Chemical Physics - PCCP  
Here, comparative electron spin–lattice relaxation studies of the 2Fe–2S iron–sulphur (Fe–S) cluster embedded in a large membrane protein complex – cytochrome bc1 – are reported.  ...  We would like to thank Dr Monika Czapla for preparation of mutants of cytochrome bc 1 .  ...  Acknowledgements This study was supported by The Wellcome Trust International Senior Research Fellowship (to A.O.) and the Polish Ministry of Science and Higher Education grant Iuventus Plus (to M.S.).  ... 
doi:10.1039/c5cp02815a pmid:26355649 pmcid:PMC5716461 fatcat:bxjhe5wuezbjhb6c76q2cqz4da
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