Perspectives and Development of Electrical Systems in More Electric Aircraft by Ahmet Yigit Arabul, Emre Kurt, Fatma Keskin Arabul, İbrahim Senol, Martin Schrötter, Róbert Bréda, Dávid Megyesi

“…On-board electrical systems are the key components of each modern aircraft. …”
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Feedforward and Feedback Control Performance Assessment for Nonlinear Systems by Zhiguo Wang, Jun Chen

“…A performance assessment method for nonlinear feedforward and feedback control systems is proposed in this paper. First, the existence of minimum variance performance bound for two nonlinear systems with different structures is analyzed, and the closed-loop model of nonlinear system is obtained with the help of iterative orthogonal least squares identification method. …”
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Recent Progress on Nonlinear Schrödinger Systems with Quadratic Interactions by Chunhua Li, Nakao Hayashi

“…The study of nonlinear Schrödinger systems with quadratic interactions has attracted much attention in the recent years. …”
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Nonsingular Global Fixed-Time Stabilization for Nonlinear Systems by Wei Hu, Zhangyong Zhou, Junjun Tang

“…Since existing results about fixed-time stabilization are only applied to strict feedback systems, this paper investigates the nonsingular fixed-time stabilization of more general high-order nonlinear systems. …”
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THE SYSTEM OF NORMATIVE LEGAL REGULATION OF ACCOUNTING OF THE RUSSIAN FEDERATION by Z. Korzovatykh, A. Bykova

“…Main attention is paid to the system of legal regulation from different points of view, found a link between the concepts of regulatory accounting, property and non-property relations . …”
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Ordered Structures of Constructing Operators for Generalized Riesz Systems by Hiroshi Inoue

“…A sequence {φn} in a Hilbert space H with inner product <·,·> is called a generalized Riesz system if there exist an ONB e={en} in H and a densely defined closed operator T in H with densely defined inverse such that {en}⊂D(T)∩D((T-1)⁎) and Ten=φn, n=0,1,⋯, and (e,T) is called a constructing pair for {φn} and T is called a constructing operator for {φn}. …”
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Stability Analysis of a System of Exponential Difference Equations by Q. Din, K. A. Khan, A. Nosheen

“…We study the boundedness character and persistence, existence and uniqueness of positive equilibrium, local and global behavior, and rate of convergence of positive solutions of the following system of exponential difference equations: xn+1=(α1+β1e-xn+γ1e-xn-1)/(a1+b1yn+c1yn-1), yn+1=(α2+β2e-yn+γ2e-yn-1)/(a2+b2xn+c2xn-1), where the parameters αi, βi, γi, ai, bi, and ci for i∈{1,2} and initial conditions x0, x-1, y0, and y-1 are positive real numbers. …”
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ON THE COMPLEX FORMULA OF THE APPARENT POWER IN CALCULATIONS OF THE ELECTRICAL SYSTEMS by Bаndia Baro

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Task dimensions of user evaluations of information retrieval systems by F.C.Johnson, J.R.Griffiths, R.J.Hartley

Subjects: “…information retrieval systems…”
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Web-based learning support systems: adaptability and intelligence by Algimantas Kurlavičius

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Achromatic Fresnel Lens with Improved Efficiency for PV Systems by Mario González Montes, Juan Carlos Martínez-Antón, Daniel Vázquez Moliní, Antonio Álvarez Fernandez-Balbuena, E. Bernabeu

“…This work is aimed to design and evaluate different achromatic Fresnel lens solutions capable of operating as concentrators aimed at photovoltaic cells systems. Throughout this study, the theoretical parametric design of the achromatic lens will be shown together with a series of simulations to verify the performance of each lens topology. …”
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LINKS. A System for Historical Family Reconstruction in the Netherlands by Kees Mandemakers, Gerrit Bloothooft, Fons Laan, Joe Raad, Rick J. Mourits, Richard L. Zijdeman

“… LINKS stands for 'LINKing System for historical family reconstruction' and is a software system to link nominal data from the Dutch archives and ultimately reconstruct historical individuals and families. …”
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Rapid Convergence for Telegraph Systems with Periodic Boundary Conditions by Peiguang Wang, Xiang Liu

“…Finally, we develop two sequences which converge to the solution of the telegraph system and the convergence is of order n.…”
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Competence approach and a credit-modular system of training by Dmitriy V. Afanasiev, Vladimir Sergeevich Gryzlov

“…The paper offers a variant of implementing a competence approach within a credit-modular system of training in accordance with the Federal State Educational Standards (FSES). …”
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IMPROVEMENT OF THE SYSTEM OF FINANCING AND STIMULATION OF RESEARCH WORK OF UNIVERSITIES by Yuri V. Mezdrikov, Olga V. Belova

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Activation of Brain Attention Systems in Individuals with Symptoms of ADHD by P. Dennis Rodriguez, Gordon C. Baylis

“…The main difference occurred at the frontal site, indicating that individuals with ADHD symptoms have deficits in the anterior attentional system, which mediates signal detection. Behavioral measures of signal sensitivity revealed that the ADHD-Inattentive and the ADHD-Hyperactive/Impulsive groups had more difficulty with the attention-demanding Go/NoGo respond-to-target task, while behavioral measures of response bias indicated that the ADHD-Hyperactive/Impulsive and the ADHD-Combined groups responded more liberally in the inhibition-demanding Go/NoGo suppress-to-target task.…”
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Pension system: Financial education alleviates reform backlog by Marc Peter Radke, Manuel Rupprecht

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Temporal Coding of Periodicity Pitch in the Auditory System: An Overview by Peter Cariani

“…Similar autocorrelation-like representations are possible in other sensory systems, in which neural discharges are time-locked to stimulus waveforms.…”
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Hyperchaos in a Conservative System with Nonhyperbolic Fixed Points by Aiguo Wu, Shijian Cang, Ruiye Zhang, Zenghui Wang, Zengqiang Chen

“…However, there are few research results about chaotic conservative systems especially the smooth hyperchaotic conservative system in both theory and application. …”
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Systemic Antifungal Drugs: Are We Making Any Progress? by Michel Laverdière

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