Browsing by Title
Now showing items 17425-17444 of 50233
-
A new iterative learning control method for PWM inverter current regulation
( IEEE , 2003 , Conference Paper)AC servomotor speed or current controller based on PI control and/or optimal control, can not eliminate the cyclical fluctuations of speed or current when subject to periodic disturbances. PWM inverters output waveforms ... -
New Lights on Mamluk Cartouches and Blazons Displayed in the Museum of Islamic Arts, Doha: An Art Historic Study
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)The Mamluk dynasty ruled in Egypt and Syria from the overthrow of the Ayyubid dynasty in 1250 until the Ottoman conquest in 1517. The Mamluk sultanate developed a system of pictorial heraldic blazons and inscribed cartouches ... -
A New Liquid Membrane Electrode For Selective Determination Of Caffeine
( Qatar University , 1984 , Article)A new liquid membrane electrode for caffeine prepared from a solution of caffeine-picrylsulfonate ion-pair complex in n-octanol is developed. It exhibits Nernstian response in the range of 10'2 to lO^M caffeine with a ... -
A New Low Cost Linear Resolver Converter
( IEEE , 2008 , Article)A new low cost converter topology is proposed for sinusoidal position encoders. The converter enables determination of the angle from the sine and cosine signals of the encoder. When used with resolvers, the implementation ... -
New magnetic Schiff's base-chitosan-glyoxal/fly ash/Fe3O4 biocomposite for the removal of anionic azo dye: An optimized process
( Elsevier B.V. , 2020 , Article)In this study, a new magnetic Schiff's base-chitosan-glyoxal/fly ash/Fe3O4 biocomposite (Chi-Gly/FA/Fe3O4) was successfully synthesized by direct compositing of magnetic chitosan (Chi) with fly ash (FA) powder particles, ... -
New markers for the detection of polycystic ovary syndrome
( MedCrave Group , 2019 , Article)Polycystic Ovary Syndrome (PCOS) is a highly prevalent, complex genetic disorder of the endocrine system in women. Alterations that occur in women with PCOS can be due to several predisposing factors; among these contributors ... -
New material of polyacrylic acid-modified graphene oxide composite for phenol remediation from synthetic and real wastewater
( Elsevier , 2022 , Article)In this study, new material of polyacrylic acid-modified graphene oxide (GO-PAA) composite for phenol remediation from synthetic and real wastewater was investigated. The graphene oxide (GO) and GO-PAA were physically and ... -
A new method for broad-scale modeling and projection of plant assemblages under climatic, biotic, and environmental cofiltering.
( Wiley , 2021 , Article)There is increasing interest in broad-scale analysis, modeling, and prediction of the distribution and composition of plant species assemblages under climatic, environmental, and biotic filtering, particularly for conservation ... -
A new method for synthesizing test accuracy data outperformed the bivariate method
( Elsevier , 2020 , Article)This paper outlines the development of a new method (split component synthesis; SCS) for meta-analysis of diagnostic accuracy studies and assesses its performance against the commonly used bivariate random effects model. ... -
New model for estimating geometric tortuosity of variably saturated porous media using 3D synchrotron microcomputed tomography imaging
( John Wiley and Sons Inc , 2021 , Article)Tortuosity has a significantimpact on flow and transport characteristics of porous media and plays a major role in many applications such as enhanced oil recovery, contaminant transport in aquifers, and fuel cells. Most ... -
A New Modified Kumaraswamy Distribution: Actuarial Measures and Applications
( Hindawi , 2022 , Article)In this paper, a new modified Kumaraswamy distribution is proposed, and some of its basic properties are presented, such as the mathematical expressions for the moments, probability weighted moments, order statistics, ... -
New Multiple-kink solutions and singular-kink-solutions of (2 + 1) - Dimensional coupled burgers system with time variable coefficients
( American Scientific Publishers , 2017 , Article)In this paper, we show that the (2+1)-dimensional coupled Burgers system with time variable coefficients which arise in engineering, chemistry, chemical physics, plasma physics, complex physics and phenomena gives multiple ... -
A New Non-Isolated High-Gain Single-Switch DC–DC Converter Topology with a Continuous Input Current
( MDPI , 2022 , Article)An ultra-high step-up, non-isolated DC–DC converter with a continuous input current was developed as a result of this research. This converter’s architecture consists of a voltage multiplier cell (VMC), a positive output ... -
New nonlinear estimators of the gravity equation
( Elsevier , 2020 , Article)The gravity model of international trade is often applied by economists to explain bilateral trade between countries. Nevertheless, some estimation practices have been subject to criticism, namely how zero trade values and ... -
A new normalized Deadbeat control for grid connected distributed generation systems
( IEEE , 2013 , Conference Paper)This paper proposes a newly designed Real Time Digital Feedback Controller for a grid connected PV system. A multilevel Flying Capacitors Inverter (FCI) along with inductor and step-up transformer is used as an interface ... -
A new One Health Framework in Qatar for future emerging and re-emerging zoonotic diseases preparedness and response
( Elsevier , 2023 , Article)One Health is increasingly recognized as an optimal approach to address the global risk of health threats originating at the human, animal, and ecosystem interface, and their impact. Qatar has successfully practiced One ... -
A New One-Step Iterative Process for Common Fixed Points in Banach Spaces
( Hindawi Publishing Corporation , 2008 , Article)We introduce a new one-step iterative process and use it to approximate the common fixed points of two asymptotically nonexpansive mappings through some weak and strong convergence theorems. Our process is computationally ... -
New parametric solutions of some abel equations
( University of Miskolc , 2016 , Article)New parametric solutions of some Abel equations of second kind are found. The scheme for construction of these solutions utilizes a combination of differential invariants of a symmetry of an associated second order ODE and ... -
A new perspective on the linkages between tourism demand and business cycles
( Wiley-Blackwell , 2022 , Article)Business cycles, that is, the irregular fluctuations in economic activity,affect tourism demand—this is a stylized fact in tourism research. And itis well-founded. After all, as incomes rise, so does the consumption ofgoods ... -
New plain-text authentication secure scheme for implantable medical devices with remote control
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Conference Paper)Implantable medical devices are being increasingly used to treat or monitor different medical conditions. For such purposes, wireless is the most desired communication scheme to be implemented in these devices. On the other ...
