Results 61 to 70 of about 98,970 (350)

Effect of cracking and randomness of inputs on corrosion initiation of reinforced concrete bridge decks exposed to chlorides [PDF]

Fracture and Structural Integrity, 2017
The paper is aimed at the indicative evaluation of the effect of random scatter of input parameters in case of durability of reinforced concrete bridge deck.
P. Konecny, P. Lehner
doaj   +1 more source

Variability of the Accretion Stream in the Eclipsing Polar EP Dra [PDF]

, 2003
We present the first high time resolution light curves for six eclipses of the magnetic cataclysmic variable EP Dra, taken using the superconducting tunnel junction imager S-Cam2.
Bridge, C. M., Cropper, Mark, de Bruijne, J. H. J, Perryman, M. A. C., Ramsay, Gavin, Reynolds, A. P.   +5 more
core   +3 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

RMD-QOSM - The Resource Management in Diffserv QoS model [PDF]

, 2005
This document describes an NSIS QoS Model for networks that use the Resource Management in Diffserv (RMD) concept. RMD is a technique for adding admission control and preemption function to Differentiated Services (Diffserv) networks. The RMD QoS Model
Bader, Attila, Kappler, Cornelia, Karagiannis, Georgios, Phelan, Tom, Westberg, Lars   +4 more
core   +1 more source

Eclipse studies of the dwarf-nova Ex Draconis

, 2000
We report on high speed photometry of EX Dra in quiescence and in outburst. The analysis of the lightcurves indicates that the outbursts do not start in the outer disc regions.
Applegate, Bailey, Baptista, Baptista, Baptista, Baptista, Barwig, Bell, Bessell, Billington, Cannizzo, Cook, Fiedler, Flannery, Gänsicke, Horne, Koester, L. Costa, Lamla, Lucke, M. S. Catalán, Marsh, Massey, Massey, Nauenberg, Paczyński, Pickles, Press, R. Baptista, Richman, Ritter, Schmidt-Kaler, Smak, Smak, Smith, Vennes, Warner, Wood, Wood, Wood, Wood, Wood   +41 more
core   +2 more sources

Complex Variability of the H$\alpha$ Emission Line Profile of the T Tauri Binary System KH 15D: The Influence of Orbital Phase, Occultation by the Circumbinary Disk, and Accretion Phenomenae [PDF]

, 2012
We have obtained 48 high resolution echelle spectra of the pre-main sequence eclipsing binary system KH~15D (V582 Mon, P = 48.37 d, $e$ $\sim$ 0.6, M$_{A}$ = 0.6 M$_{\odot}$, M$_{B}$ = 0.7 M$_{\odot}$). The eclipses are caused by a circumbinary disk seen
Agol, Artymowicz, Barge, Boden, Catrina M. Hamilton, Chiang, Christopher M. Johns-Krull, Deming, Hamilton, Hamilton, Hamilton, Herbst, Hinkle, Jensen, Johnson, Johnson, Johnson, Joshua N. Winn, Kearns, Kusakabe, Mundt, Muzerolle, Muzerolle, Reinhard Mundt, Tokunaga, Valenti, William Herbst, Winn, Winn, Winn   +29 more
core   +3 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

An Efficient Chloride Ingress Model for Long-Term Lifetime Assessment of Reinforced Concrete Structures Under Realistic Climate and Exposure Conditions

International Journal of Concrete Structures and Materials, 2017
Chloride penetration is among the main causes of corrosion initiation in reinforced concrete (RC) structures producing premature degradations. Weather and exposure conditions directly affect chloride ingress mechanisms and therefore the operational ...
Phu Tho Nguyen, Emilio Bastidas-Arteaga, Ouali Amiri, Charbel-Pierre El Soueidy   +3 more
doaj   +1 more source

Detection of He I $\lambda10830$ \AA{} absorption on HD 189733 b with CARMENES high-resolution transmission spectroscopy [PDF]

, 2018
We present three transit observations of HD 189733 b obtained with the high-resolution spectrograph CARMENES at Calar Alto. A strong absorption signal is detected in the near-infrared He I triplet at 10830 \AA{} in all three transits. During mid-transit,
Alonso-Floriano, F. J., Amado, P. J., Bauer, F. F., Béjar, V. J. S., Caballero, J. A., Casasayas-Barris, N., Chen, G., Cortés-Contreras, M., Czesla, S., Dreizler, S., Guenther, E. W., Henning, T., Jeffers, S. V., Kaminski, A., Kürster, M., Lafarga, M., Lampón, M., Lara, L. M., López-Puertas, M., Molaverdikhani, K., Montes, D., Morales, J. C., Nagel, E., Nortmann, L., Osorio, M. R. Zapatero, Pallé, E., Quirrenbach, A., Reiners, A., Ribas, I., Salz, M., Sanz-Forcada, J., Schmitt, J. H. M. M., Schneider, P. C., Seifert, W., Snellen, I. A. G., Sánchez-López, A., Yan, F., Zechmeister, M.   +37 more
core   +3 more sources