Results 41 to 50 of about 820,433 (287)

Figure of merit for photonic differentiators

Optics Express, 2012
We introduce a universal figure of merit to evaluate the processing speed (operation bandwidth) performance of arbitrary-order optical differentiators. In particular, we define the maximum-to-minimum bandwidth ratio (MMBR) as a main figure of merit of these devices, which essentially informs about the broadness of the acceptable input pulse bandwidth ...
Reza, Ashrafi, José, Azaña
openaire   +2 more sources

Terahertz Faraday rotation in a magnetic liquid: High magneto-optical figure of merit and broadband operation in a ferrofluid [PDF]

, 2012
We report on the demonstration of a high figure of merit (FOM) Faraday rotation in a liquid in the terahertz (THz) regime. Using a ferrofluid, a high broadband rotation (11 mrad/mm) is experimentally demonstrated in the frequency range of 0.2–0.9 THz at ...
Al-Naib, Ibraheem, Clerici, Matteo, Mazhorova, Anna, Morandotti, Roberto, Ozaki, Tsuneyuki, Ozturk, Yavuz, Peccianti, Marco, Razzari, Luca, Shalaby, Mostafa, Skorobogatiy, Maksim   +9 more
core   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Thermodynamic Bounds on Efficiency for Systems with Broken Time-reversal Symmetry

, 2011
We show that for systems with broken time-reversal symmetry the maximum efficiency and the efficiency at maximum power are both determined by two parameters: a "figure of merit" and an asymmetry parameter.
Giuliano Benenti, Giulio Casati, H. B. Callen, I. I. Novikov, J. Yvon, Keiji Saito, P. Chambadal, S. Carnot, S. Datta   +8 more
core   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source

Considering the Figure of Merit as a parameter of optimization in Mammography: a case study of the performance in a CR and a DR system

Brazilian Journal of Radiation Sciences
Mammography is an important examination for the early detection of breast cancer, and its use requires radiation protection considerations to ensure the lowest possible risk to the patient.
Raíssa Xavier Contassot, Leonardo Catusso, Isabela Rocha Veiga da Silva, Fabrício Nery Garrafiel, Davi Silveira Azevedo, Cássio Costa Ferreira, Marcela Costa Alcântara Estácio, Felipe Amorim Santos, João Vinícius Batista Valença   +8 more
doaj   +1 more source

Computation of Bhat's OMIT maps with different coefficients [PDF]

, 1997
The OMIT electron-density-map calculation is very effective in discovering errors in a macromolecular structure determination. A Fortran program called OMIT has been written to calculate such maps and an investigation has been carried out into which ...
Dijkstra, B.W.,, Vellieux, F.M.D.,
core   +4 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Optimizing plasmonic nanostructures array for high-performance sensing applications

Results in Physics
The localized surface plasmon resonance (LSPR) phenomenon, influenced by the surrounding medium, has been widely employed in optical sensors. Traditional sensors focus on refractive index sensitivity (ηRIS) but neglect the broad spectral linewidth, thus ...
Sajid Farooq, Rashid Hussain Dahar, Muhammd Waqas Yasin, May Hu, Diego Rativa, Dexing Kong, Renato E. de Araujo   +6 more
doaj   +1 more source

Coefficient of performance at maximum figure of merit and its bounds for low-dissipation Carnot-like refrigerators

, 2012
The figure of merit for refrigerators performing finite-time Carnot-like cycles between two reservoirs at temperature $T_h$ and $T_c$ ($
A. Calvo Hernández, I. Novikov, J. M. Gordon, J. M. M. Roco, J. Yvon, Mingxing Li, P. Chambadal, S. K. Ma, Yang Wang, Z. C. Tu   +9 more
core   +1 more source