Results 51 to 60 of about 201,758 (300)

A Study on Common Mode Voltage Reduction Strategies According to Modulation Methods in Modular Multilevel Converter

open access: yesEnergies, 2021
Low level modular multilevel converter (MMC) is a promising candidate for medium voltage applications such as MVDC (medium voltage DC current) transmission and megawatt machine drives.
Chang-Hwan Park   +4 more
doaj   +1 more source

t-modular spaces

open access: yesTikrit Journal of Pure Science
In the current study, a new modular type   which is called t-modular is defined. Some properties are given and proven, the vector space  is defined, namely t-modular space with a norm function on  being ...
Safa Shakir
doaj   +1 more source

A Modular AC-DC Power Converter with Zero Voltage Transition for Electric Vehicles

open access: yesEnergies, 2017
A study of the fundamental of operation of a three-phase AC-DC power converter that uses Zero-Voltage Transition (ZVT) together with Space Vector Pulse Width Modulation (SVPWM) is presented. The converter is basically an active rectifier divided into two
Jazmin Ramirez-Hernandez   +2 more
doaj   +1 more source

COPS in Action: Exploring Structure in the Usage of the Youth Psychotherapy MATCH

open access: yesPsych, 2023
This article is an introduction to Cluster Optimized Proximity Scaling (COPS) aimed at practitioners, as well as a tutorial on the usage of the corresponding R package cops.
Thomas Rusch   +3 more
doaj   +1 more source

Structure of the module of vector-valued modular forms

open access: yes, 2009
Let $V$ be a representation of the modular group $\Gamma$ of dimension $p$. We show that the $\mathbb{Z}$-graded space $\mathcal{H}(V)$ of holomorphic vector-valued modular forms associated to $V$ is a free module of rank $p$ over the algebra $\mathcal{M}
Marks, Christopher, Mason, Geoffrey
core   +3 more sources

Partition Functions, Duality, and the Tube Metric [PDF]

open access: yes, 1997
The partition function of type IIA and B strings on R^6xK3, in the T^4/Z_2 orbifold limit, is explicitly computed as a modular invariant sum over spin strutures required by perturbative unitarity in order to extend the analysis to include type II strings
Antoniadis   +24 more
core   +2 more sources

A Novel Modular Permanent Magnet-Assisted Synchronous Reluctance Motor

open access: yesIEEE Access, 2021
This paper proposes a novel modular permanent magnet-assisted synchronous reluctance motor (MPMA-SynRM) structure. The rotor is composed of two types of rotor modules that are axially combined. This article analyses and explains the combined angle of the
Zeyu Liu   +4 more
doaj   +1 more source

Enhanced Symmetries in Multiparameter Flux Vacua

open access: yes, 2005
We give a construction of type IIB flux vacua with discrete R-symmetries and vanishing superpotential for hypersurfaces in weighted projective space with any number of moduli.
A. Giryavets   +43 more
core   +1 more source

Recurrent cancer‐associated ERBB4 mutations are transforming and confer resistance to targeted therapies

open access: yesMolecular Oncology, EarlyView.
We show that the majority of the 18 analyzed recurrent cancer‐associated ERBB4 mutations are transforming. The most potent mutations are activating, co‐operate with other ERBB receptors, and are sensitive to pan‐ERBB inhibitors. Activating ERBB4 mutations also promote therapy resistance in EGFR‐mutant lung cancer.
Veera K. Ojala   +15 more
wiley   +1 more source

Comparison of integral structures on spaces of modular forms of weight two, and computation of spaces of forms mod 2 of weight one, with appendices by Jean-Francois Mestre and Gabor Wiese

open access: yes, 2003
Two integral structures on the Q-vector space of modular forms of weight two on X_0(N) are compared at primes p exactly dividing N. When p=2 and N is divisible by a prime that is 3 mod 4, this comparison leads to an algorithm for computing the space of ...
Edixhoven, Bas   +2 more
core   +1 more source

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