Results 21 to 30 of about 29,853 (260)

Scalable Surface-Code Decoders with Parallelization in Time

open access: yesPRX Quantum, 2023
Fast classical processing is essential for most quantum fault-tolerance architectures. We introduce a sliding-window decoding scheme that provides fast classical processing for the surface code through parallelism.
Xinyu Tan   +4 more
doaj   +1 more source

Deterministic approach to design passive anomalous-diffraction metasurfaces with nearly 100% efficiency

open access: yesNanophotonics, 2023
Designing perfect anomalous reflectors is crucial for achieving many metasurface-based applications, but available design approaches for the cases of extremely large bending angles either require unrealistic gain–loss materials or rely on brute-force ...
Fang Zhening   +6 more
doaj   +1 more source

Minimum 2SAT-DELETION: inapproximability results and relations to Minimum Vertex Cover [PDF]

open access: yes, 2007
The MINIMUM 2SAT-DELETION problem is to delete the minimum number of clauses in a 2SAT instance to make it satisfiable. It is one of the prototypes in the approximability hierarchy of minimization problems Khanna et al.
Chlebikova, Janka   +5 more
core   +1 more source

Determination of Water Drive Mechanism Activation Using Geological Model for Heavy Oil Field in North of Iraq

open access: yesIraqi Geological Journal, 2023
Most of the productive oil fields around the world are water drive reservoirs where water influx has the potential to improve oil recovery considerably.
Herish Bibani, Ayad Al-haleem
doaj   +1 more source

Efficient Calibration of a Conceptual Hydrological Model Based on the Enhanced Gauss–Levenberg–Marquardt Procedure

open access: yesApplied Sciences, 2020
Various models were developed in the past to simulate different hydrological processes. However, discrepancies between simulated and observed values are still significant and pose a challenge to many researchers.
Andrej Vidmar   +3 more
doaj   +1 more source

Influence of Aperture of Radiating Strip Structure on Electrodynamic Characteristics of Patch Antenna

open access: yesEast European Journal of Physics, 2023
The paper presents the results of numerical modeling of the electrodynamic characteristics of a Vivaldi type patch antenna based on a circular disk resonator. The modeling was carried out using the semi-open resonator model by the finite element method (
Sergey A. Pogarsky   +2 more
doaj   +1 more source

THE TYPICAL STRUCTURE OF MAXIMAL TRIANGLE-FREE GRAPHS

open access: yesForum of Mathematics, Sigma, 2015
Recently, settling a question of Erdős, Balogh, and Petříčková showed that there are at most $2^{n^{2}/8+o(n^{2})}$$n$-vertex maximal triangle-free graphs, matching the previously known lower bound.
JÓZSEF BALOGH   +3 more
doaj   +1 more source

Investigation of Functional Dependency between the Characteristics of the Machining Process and Flatness Error Measured on a CMM

open access: yesMeasurement Science Review, 2021
Numerous studies have shown that the choice of measurement strategy (number and position of measurement points) when measuring form error on a coordinate-measuring machine (CMM) depends on the characteristics of the machining process which was used to ...
Štrbac Branko   +4 more
doaj   +1 more source

Almost all Steiner triple systems have perfect matchings [PDF]

open access: yesProceedings of the London Mathematical Society, 2020
We show that for any n divisible by 3, almost all order-n Steiner triple systems have a perfect matching (also known as a parallel class or resolution class). In fact, we prove a general upper bound on the number of perfect matchings in a Steiner triple system and show that almost all Steiner triple systems essentially attain this maximum.
openaire   +3 more sources

Capacitive-loaded interstitial antenna for perfect matching

open access: yes, 2018
A coaxial-cable capacitive-loaded interstitial antenna (CCIA) is proposed for 2.45 GHz. The capacitive load contributes to almost perfect matching and desirable heating area.
Myung, NH, Ahn, HR, Kim, B
core   +2 more sources

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