Temperature Mapping During MR-Guided Cryoablation Using a FLORET UTE Sequence. [PDF]
Magn Reson MedABSTRACT Purpose To implement a three‐dimensional FLORET‐UTE sequence for rapid MR thermometry during cryoablation and to validate voxel‐wise temperature maps against fiber‐optic probes in ex vivo bovine liver. Methods A FLORET‐UTE trajectory (TE 50 μs, 1.6 mm isotropic, 18 s/volume) was executed on a 3 T scanner while dry‐ice cryoablation was applied ...
Gutt M +6 more
europepmc +2 more sources
Comparison of Signal- and Volume-Based Ventilation-Weighted Assessment Using 3D FLORET UTE MRI in Patients With Various Pulmonary Disease. [PDF]
Magn Reson MedABSTRACT Purpose 3D free‐breathing, proton, contrast‐agent‐free MR methods are increasingly used for pulmonary ventilation‐weighted measurements. The methods are split between: (1) signal‐based, which rely on lung parenchyma signal changes during respiration, and (2) volume‐based that utilize the Jacobian determinant of deformation fields from the ...
Klimeš F +12 more
europepmc +2 more sources
Impact of Surgical Diaphragmatic Repair on Central Airway Shape in Neonatal Congenital Diaphragmatic Hernia. [PDF]
Pediatr PulmonolABSTRACT Rationale Neonates with congenital diaphragmatic hernia (CDH) frequently experience central airway abnormalities, including tracheobronchomalacia, which persist post‐surgical repair. However, these complications often remain underdiagnosed due to reliance on symptomatic evaluation and limited use of bronchoscopy.
Gunatilaka CC +8 more
europepmc +2 more sources
Design Method of Freeform Off-Axis Multi-Mirror Optical Systems
Photonics, 2022 A data point calculation method that does not require the use of Fermat′s principle and a simple and general design method of starting points of freeform off-axis multi-mirror optical systems are proposed in this paper, which aim to promote the ...
Xinyu Liu, Jun Zhu
doaj +1 more source
Partitions of numbers and the algebraic principle of Mersenne, Fermat and even perfect numbers [PDF]
Notes on Number Theory and Discrete MathematicsLet ρ be an odd prime greater than or equal to 11. In a previous work, starting from an M-cycle in a finite field 𝔽_ρ, it has been established how the divisors of Mersenne, Fermat and Lehmer numbers arise.
A. M. S. Ramasamy
doaj +1 more source
Fluxes, vacua, and tadpoles meet Landau-Ginzburg and Fermat
Journal of High Energy Physics, 2022 Type IIB flux vacua based on Landau-Ginzburg models without Kähler deformations provide fully-controlled insights into the non-geometric and strongly-coupled string landscape.
Katrin Becker +3 more
doaj +1 more source
RSA algorithm using key generator ESRKGS to encrypt chat messages with TCP/IP protocol
Jurnal Teknologi dan Sistem Komputer, 2020 This study aims to analyze the performance and security of the RSA algorithm in combination with the key generation method of enhanced and secured RSA key generation scheme (ESRKGS).
Aminudin Aminudin +2 more
doaj +1 more source
Mersenne and Fermat Numbers [PDF]
Proceedings of the American Mathematical Society, 1954 The first seventeen even perfect numbers are therefore obtained by substituting these values of n in the expression 2 n-(2n -1). The first twelve of the Mersenne primes have been known since 1914; the twelfth, 21271, was indeed found by Lucas as early as 1876, and for the next seventy-five years was the largest known prime.
openaire +2 more sources
A Complexity-Reduced Block Encryption Algorithm Suitable for Internet of Things
IEEE Access, 2019 The Internet of Things (IoT) poses stringent requirements on service quality and security strength. A highly reliable encryption algorithm with low complexity is required to ensure information security. Therefore, this paper proposes a complexity-reduced
Xiaxia Guo +3 more
doaj +1 more source
A Practical Analysis of the Fermat Factorization and Pollard Rho Method for Factoring Integers
Lontar Komputer, 2021 The development of public-key cryptography generation using the factoring method is very important in practical cryptography applications. In cryptographic applications, the urgency of factoring is very risky because factoring can crack public and ...
Aminudin Aminudin, Eko Budi Cahyono
doaj +1 more source