Results 111 to 120 of about 91,509 (288)
Ultra High Step‐Up Soft Switching Converter Based on the Interleaved Structure
Energy Science &Engineering, Volume 14, Issue 1, Page 540-556, January 2026.The proposed topology provides high voltage gain and enhanced efficiency at low duty cycles, thereby reducing conduction losses in the switches. Its interleaved structure ensures current sharing, while the switches experience both low voltage and low current stress, further decreasing conduction losses.
Mahdi Alizadeh +3 more
wiley +1 more source
Journal of Kufa for Mathematics and Computer, 2013 Let  be a commutative ring with identity . It is well known that a topology was defined for  called the Zariski topology (prime spectrum) . In this paper we will generalize this idea for near prime ideal . If  be a commutative near-ring with identity
Hadi J Mustafa +1 more
doaj +1 more source
The weakly zero-divisor graph of a commutative ring [PDF]
, 2021 M. J. Nikmehr +2 more
openalex +1 more source
Filomat, 2017 In this paper, we present a new classes of ideals: called n-ideal. Let R be a commutative ring with nonzero identity. We define a proper ideal I of R as an n-ideal if whenever ab ? I with a ? ?0, then b ? I for every a,b ? R. We investigate some properties of n-ideals analogous with prime ideals. Also, we give many examples with regard to n-
Tekir, Unsal +2 more
openaire +3 more sources
Automatic Segmentation of the Outer and Inner Foveal Avascular Zone by Convolutional Filters
International Journal of Imaging Systems and Technology, Volume 36, Issue 1, January 2026.ABSTRACT In this paper a new algorithm for segmentation of the foveal avascular zone in optical coherence tomography angiography images of the superficial capillary plexus is presented and evaluated. The algorithm is based on convolutional techniques, and for evaluation it has been compared with a collection of manual segmentations.
Carlos Ruiz‐Tabuenca +3 more
wiley +1 more source
Two elementary commutativity theorems for generalized boolean rings
International Journal of Mathematics and Mathematical Sciences, 1997 In this paper we prove that if R is a ring with 1 as an identity element in which xm−xn∈Z(R) for all x∈R and fixed relatively prime positive integers m and n, one of which is even, then R is commutative.
Vishnu Gupta
doaj +1 more source
Commutative Rings whose Matrix Rings are Baer Rings [PDF]
Proceedings of the American Mathematical Society, 1969 A ring R with unit element is a Baer ring if every left annihilator in R has the form Re, where e is an idempotent element. K. G. Wolfson has proven [3, Corollary 15], that if R is a Priifer ring (a commutative integral domain in which every finitely generated ideal is invertible) then the ring of endomorphisms of a finitely generated free module over ...
openaire +2 more sources
IET Electric Power Applications, Volume 20, Issue 1, January/December 2026.We propose a novel five‐level active‐neutral‐point‐clamped converter utilising reverse blocking IGBT (RB‐IGBT). The inverter configuration significantly reduces conduction losses, as only two switches are on the current paths in some switching states. We also propose an optimised state machine‐based modulation strategy.
Mingxia Xu +4 more
wiley +1 more source
IET Power Electronics, Volume 19, Issue 1, January/December 2026.This paper investigates the application of Finite Control Set Model Predictive Control (FCS‐MPC) for Brushless DC (BLDC) motor speed regulation under dynamic references, including sinusoidal, square, triangular, and sawtooth signals. A novel cost function is introduced to evaluate switching frequency effects, and the influence of different weighting ...
Ahmad Entezari +2 more
wiley +1 more source
A commutativity theorem for division rings [PDF]
, 1980 Hazar Abu-Khuzam, Adil Yaqub
openalex +1 more source