Results 21 to 30 of about 3,316,101 (301)
Attenuation Correction Approaches for Serotonin Transporter Quantification With PET/MRI
Frontiers in Physiology, 2019 BackgroundSeveral MR-based attenuation correction (AC) approaches were developed to conquer the challenging AC in hybrid PET/MR imaging. These AC methods are commonly evaluated on standardized uptake values or tissue concentration.
Lucas Rischka +17 more
doaj +1 more source
Journal of Cheminformatics, 2023 Activity cliffs (AC) are formed by pairs of structural analogues that are active against the same target but have a large difference in potency. While much of our knowledge about ACs has originated from the analysis and comparison of compounds and ...
Shunsuke Tamura +2 more
doaj +1 more source
, 2014 Equational theories that contain axioms expressing associativity and commutativity (AC) of certain operators are ubiquitous. Theorem proving methods in such theories rely on well-founded orders that are compatible with the AC axioms.
A. Ben Cherifa +16 more
core +2 more sources
Integration of an Active Filter and a Single-Phase AC/DC Converter with Reduced Capacitance Requirement and Component Count [PDF]
, 2015 Existing methods of incorporating an active filter into an AC/DC converter for eliminating electrolytic capacitors usually require extra power switches. This inevitably leads to an increased system cost and degraded energy efficiency.
Hui, SYR, Li, S, Qi, W, Tan, SC
core +1 more source
Canonized Rewriting and Ground AC Completion Modulo Shostak Theories : Design and Implementation [PDF]
, 2011 AC-completion efficiently handles equality modulo associative and commutative function symbols. When the input is ground, the procedure terminates and provides a decision algorithm for the word problem.
Evelyne Contejean +3 more
core +6 more sources
Study of atrazine adsorption kinetics by using an activated carbon synthesised from water hyacinth [PDF]
E3S Web of Conferences, 2019 In this work, atrazine, one of the most widely used herbicides in Thailand, was removed from water by activated carbon synthesized from water hyacinth. Before adsorption, 3 types of activated carbons used as adsorbents were prepared by different chemical
Deetae Pawinee, Wongpromrat Patthranit
doaj +1 more source
Adhesive capsulitis of the shoulder: pain intensity and distribution [PDF]
, 2017 Purpose Papers regarding adhesive capsulitis (AC) of the shoulder focused on etiology, epidemiology, diagnosis, and treatment; until now, information on shoulder pain characteristics is still scarce.
Candela, V +4 more
core +1 more source
EJNMMI Physics, 2021 Background PET/MRI phantom studies are challenged by the need of phantom-specific attenuation templates to account for attenuation properties of the phantom material.
Ivo Rausch +6 more
doaj +1 more source
A PAM Control Method for Matrix Converter Based on Virtual AC/DC/AC Conversion Method
IEEJ Transactions on Industry Applications, 2006 AbstractIn this paper, a novel control method for a matrix converter is proposed. The proposed method is a PAM (Pulse Amplitude Modulation) control method based on a virtual AC/DC/AC conversion method. Output voltage amplitude is controlled by controlling a virtual DC link voltage with a virtual rectifier.
Akihiro Odaka +5 more
openaire +2 more sources
Control of hybrid AC/DC microgrid under islanding operational conditions
Journal of Modern Power Systems and Clean Energy, 2014 This paper presents control methods for hybrid AC/DC microgrid under islanding operation condition. The control schemes for AC sub-microgrid and DC sub-mi-crogrid are investigated according to the power sharing requirement and operational reliability. In
Guangqian Ding +4 more
doaj +1 more source