Modern Normative and Technical Support of Complex Technical Systems Projects by Світлана Кривова, Олександр Зубаньов, Костянтин Зворикін, Сергій Трубачев

“…According to the results of the criterion analysis of the array of normative and technical documents that can be used by the domestic science-intensive sector of industry, the concepts of building of the programs/projects life cycle for the life cycle of complex technical systems were determined and recommended depending on the nature of the organizations' activities.                …”
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Existence of positive radial solutions of general quasilinear elliptic systems by Devine Daniel

“…We study the existence of positive, radial solutions of quasilinear elliptic systems of the form Δpu=f1(∣x∣)g1(v)∣∇u∣αinΩ,Δpv=f2(∣x∣)g2(v)h(∣∇u∣)inΩ,\left\{\begin{array}{rcl}{\Delta }_{p}u& =& {f}_{1}\left(| x| ){g}_{1}\left(v){| \nabla u| }^{\alpha }\hspace{1.0em}\hspace{0.1em}\text{in}\hspace{0.1em}\hspace{0.33em}\Omega ,\\ {\Delta }_{p}v& =& {f}_{2}\left(| x| ){g}_{2}\left(v)h\left(| \nabla u| )\hspace{1.0em}\hspace{0.1em}\text{in}\hspace{0.1em}\hspace{0.33em}\Omega ,\end{array}\right. where α≥0\alpha \ge 0, Δp{\Delta }_{p} is the pp-Laplace operator, p>1p\gt 1, and for i,j=1i,j=1, 2, we assume fi,gj{f}_{i},{g}_{j}, and hh are continuous, non-negative and non-decreasing functions. …”
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Development of a Migraine Trigger Measurement System Using Surprisal by Dana P. Turner, Emily Caplis, Twinkle Patel, Timothy T. Houle

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Spatial Linear Coding in Joint Radar and Multicast Communication Systems by D. V. Shtarev, E. A. Mavrychev

“…This paper presents optimization methods for the amplitude-phase distribution in a transmitting antenna array in a system with a common signal for multicast data transmission and radar sensing in a given sector of space. …”
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On Kirchhoff-Schrödinger-Poisson-type systems with singular and critical nonlinearity by Yang Baoling, Zhang Deli, Liang Sihua

“…This work focuses on the Kirchhoff-Schrödinger-Poisson-type system with singular term and critical Sobolev nonlinearity as follows: −a+b∫Ω∣∇u∣pdxΔpu+ϕ∣u∣q−2u=λu−γ+∣u∣p∗−2uinΩ,−Δϕ=∣u∣qinΩ,u=ϕ=0on∂Ω,\left\{\begin{array}{ll}-\left(a+b\mathop{\displaystyle \int }\limits_{\Omega }{| \nabla u| }^{p}{\rm{d}}x\right){\Delta }_{p}u+\phi {| u| }^{q-2}u=\lambda {u}^{-\gamma }+{| u| }^{{p}^{\ast }-2}u\hspace{1.0em}& \hspace{0.1em}\text{in}\hspace{0.1em}\hspace{0.33em}\Omega ,\\ -\Delta \phi ={| u| }^{q}\hspace{1.0em}& \hspace{0.1em}\text{in}\hspace{0.1em}\hspace{0.33em}\Omega ,\\ u=\phi =0\hspace{1.0em}& \hspace{0.1em}\text{on}\hspace{0.1em}\hspace{0.33em}\partial \Omega ,\end{array}\right. where Ω\Omega is a bounded domain in RN{{\mathbb{R}}}^{N} with Lipschitz boundary ∂Ω\partial \Omega , 0<γ<10\lt \gamma \lt 1,Δpu=div(∣∇u∣p−2∇u){\Delta }_{p}u={\rm{div}}\left({| \nabla u| }^{p-2}\nabla u), 1<p<q<p*21\lt p\lt q\lt \frac{{p}^{* }}{2}, p*=Np⁄N−p{p}^{* }=Np/N-p is the critical Sobolev exponent, and λ>0\lambda \gt 0. …”
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Existence of positive radial solution for the elliptic system on an exterior domain by Dan Wang, Yongxiang Li, Shengbin Yang

“…Abstract This article discusses the existence of positive radial solution for the elliptic system { − △ u = K ( | x | ) f ( | x | , u , v , | ∇ u | ) , x ∈ Ω , − △ v = K ( | x | ) g ( | x | , u , v , | ∇ v | ) , x ∈ Ω , α 1 u + β 1 ∂ u ∂ n | ∂ Ω = 0 , α 2 v + β 2 ∂ v ∂ n | ∂ Ω = 0 , lim | x | → ∞ u ( x ) = 0 , lim | x | → ∞ v ( x ) = 0 , $$ \left \{ \textstyle\begin{array}{l} -\triangle u=K(|x|)f(|x|,\ u,\ v,\ |\nabla u|),~~x\in \Omega , \\ -\triangle v=K(|x|)g(|x|,\ u,\ v,\ |\nabla v|),~~x\in \Omega , \\ \alpha _{1}u+\beta _{1}\frac{\partial u}{\partial n}|_{\partial \Omega}=0,~\alpha _{2}v+\beta _{2}\frac{\partial v}{\partial n}|_{ \partial \Omega}=0, \\ \lim _{|x|\to \infty} u(x)=0,~\lim _{|x|\to \infty} v(x)=0, \end{array}\displaystyle \right . $$ where  Ω = { x ∈ R N : | x | > r 0 > 0 } $\Omega =\{x\in \mathbb{R}^{N}:~|x|>r_{0}>0\}$ , N ≥ 3 $N\ge 3$ , K : [ r 0 , ∞ ) → R + $K:[r_{0},~ \infty )\to \mathbb{R}_{+}$ , f and g : [ r 0 , ∞ ) × R + 3 → R + $g:[r_{0},~\infty )\times \mathbb{R}_{+}^{3}\to \mathbb{R}_{+}$ are continuous,  R + = [ 0 , ∞ ) $\mathbb{R}_{+}=[0,~ \infty )$ . …”
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Common Haplotypes within the Chromosome 1q31.3 Region Determine Systemic Concentrations of the Entire Complement Factor H Protein Family by Bert R.J. Veuskens, Mara van Rossum, Emi Cattenstart, Mieke C. Brouwer, Gerard van Mierlo, Judy Geissler, Karin van Leeuwen, Jin Liu, Robert A. Anstadt, Burt T. Richards, Gregory S. Hageman, Taco W. Kuijpers, Erik J.M. Toonen, Richard B. Pouw

“…Genetic studies of this complex locus have revealed distinct haplotypes associating with a wide array of human diseases, underscoring its significant role in complement regulation. …”
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RAPID PROTOTYPING OF EMBEDDED PROGRAMMABLE SYSTEMS ON FPGA FOR MULTIMEDIA APPLICATIONS by V. V. Kliuchenia, N. A. Petrovsky

“…This paper illustrates rapid prototyping method applied for mobile multimedia systems with L2L (lossless-to-lossy) compression scheme. …”
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Fully integrated wearable control system for micro/nanorobot navigation by Zhanxiang Zhang, Lin Wang, Fengqi Jiang, Shimin Yu, Fengtong Ji, Tianhao Sun, He Zhang, Yanhe Zhu, Hao Chang, Tianlong Li, Jie Zhao

“…Here, we introduced a fully integrated wearable control system for micro/nanorobots navigation and manipulation, which is composed of a multifunctional sensor array, an artificial intelligence (AI) planner, and a magnetic field generator. …”
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Mirroring and nonlinear perturbation of a circuit's system with multiple attractors by Emile Franc Doungmo Goufo

“…The circuit implementation using a Field Programmable Gate Array (FPGA) is performed and concur with the expected results. …”
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Implementation of DOA Estimation System Based on HackRF One by Zihan Zhang, Wenjie Zhao, Yonghui Huang, Junshe An, Yan Zhu

“…The experimental results show that the synchronization error between channels of the system is less than one sampling period. The system can be used to estimate the incident angles of single carrier signals or modulated signals. …”
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RGB Color-Discriminable Photonic Synapse for Neuromorphic Vision System by Bum Ho Jeong, Jaewon Lee, Miju Ku, Jongmin Lee, Dohyung Kim, Seokhyun Ham, Kyu-Tae Lee, Young-Beom Kim, Hui Joon Park

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Optimization models in the SCM-system: progressive supply chain management by S. G. Lukina, A. A. Sadykov, R. V. Fayzullin

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Development of a liquid chromatographic method with a different selectivity for the quantification of eighteen phytocannabinoids in hemp by Liguo Song, Jake Provis, Ammar Mohammad Al-Bataineh, Keszia Jervelle Fabien, Madeline Kotler

“…Currently, most LC-DAD methods use the water/acetonitrile eluting system, while this study aimed to use the water/methanol eluting system. …”
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RIS-based indoor wireless communication signal enhancement system by Kui TANG, Qi HU, Junming ZHAO, Ke CHEN, Yijun FENG

“…By utilizing the tunable performances of the reconfigurable intelligent surface (RIS) to manipulate the reflected electromagnetic waves, an indoor wireless communication signal enhancement system was constructed, which could improve the signal quality of the receiving terminal in where the initial wireless signals were weak.First, a RIS unit cell with dynamically tunable phase characteristics was designed, and the dynamic change of the 2 bit reflection phases was realized by switching the working states of the two active diodes.Then, experiments were conducted to verify that the proposed RIS could dynamically reshape the beam direction.Finally, a host computer and field programmable gate array (FPGA) were used to realize the intelligent control of the coding sequences applied onto the proposed RIS.By changing the spatial phase distribution on the RIS aperture, the output beam could be controlled in real-time.By traversing the pre-loaded coding sequences, the enhancement of received signal in indoor wireless environments had been experimentally demonstrated.Both simulation and experiment results verify that the proposed RIS system can effectively and dynamically improve the quality of the indoor wireless signals.The received signal is increased by an average of 8.9 dB, with a maximum of 22 dB.The proposed work may provide basic hardware technical support for the optimization of 5G and the next-generation communication networks.…”
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Phase-Change-Material-Based True Time-Delay System by Rahuldas Kutteeri, Martino De Carlo, Francesco De Leonardis, Richard A. Soref, Vittorio M. N. Passaro

“…This study explores the achievement of a tunable true time-delay (TTD) system for a microwave phased-array antenna (MPAA) by incorporating the reversible phase-transition property of phase-change material (PCM) with Bragg gratings (BGs) and a cascade of three phase-shifted Bragg grating resonators (CPSBGRs). …”
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Research and Application of Signal Acquisition Algorithm for Beidou Navigation System by Xinmiao Liao, Ling Lin, Xingqi Jiang

“…With the increasing diversification of functions of the BeiDou navigation system, the accuracy of signal capture has a greater impact on the receiver. …”
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Smart IoT-enabled Solar Power Supervision and Regulation System by Shib Sowrov Komar, Rahman Md. Tanvir, Dipto Durjoy Roy, Shufian Abu, Zishan Md. Saniat Rahman, Basak Rinku, Mannan Md. Abdul

“…The system incorporates a PV array connected to an Arduino Uno microcontroller, an ESP8266 Wi-Fi module for data transmission, and a Liquid Crystal Display (LCD) for real-time feedback. …”
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Integrated Dissemination System of Frequency, Time and Data for Radio Astronomy by Yufeng Chen, Bo Wang, Lijun Wang, Keith Grainge, Richard Oberland, Richard Whitaker, Althea Wilkinson

“…For radio telescope array applications, the precise time and frequency reference predominantly determines the quality of the observation. …”
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Sub-THz Antenna for High-Speed Wireless Communication Systems by Hamsakutty Vettikalladi, Waleed Tariq Sethi, Ahmad Fauzi Bin Abas, Wonsuk Ko, Majeed A. Alkanhal, Mohamed Himdi

“…All the results achieved make the proposed designs viable candidates for high-speed and short-distance wireless communication systems.…”
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