Novel direct sequence spread spectrum communication method by Fanglin GU, Jinlin PENG, Yuzhen HUANG, Shengqun CAO, Haitao ZHAO, Jibo WEI

“…In response to the problem of limited performance and low spectral efficiency in complex multipath environments of traditional direct sequence spread spectrum communication, a cyclic prefix (CP) block transmission structure spread spectrum system with a time-frequency hybrid direct sequence spread spectrum receiver structure was proposed.The system adopted maximum ratio combination (MRC) in the frequency domain to achieve equalization and de-spreading processes simultaneously, while achieving optimal reception performance and omitting the IFFT process to reduce computational complexity significantly.On this basis, it was proposed to replace the m-sequence with the constant amplitude zero auto correlation (CAZAC) sequence as the spread spectrum sequence, which significantly improved the system performance without increasing computational complexity.Finally, a high-speed spread spectrum communication method based on cyclic code shift keying (CCSK) was proposed to solve the problems of low spectrum utilization efficiency and limited transmission rate in traditional direct sequence spread spectrum.By utilizing the property of Fourier transform time-domain cyclic shift, a low implementation complexity CCSK decoding method was designed, which reduced the multiplication number required for CCSK de-spreading by O(N²) reduced to O (Nlog N), greatly reducing resource consume.The simulation results show that compared to existing direct sequence spread spectrum methods, the proposed method achieves approximately 3 dB gain in both Gaussian and complex multipath channel environments.…”
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Investigation of very high cycle fatigue by thermographyc method by V. Crupi, G. Epasto, E. Guglielmino, G. Risitano

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An Alarm Method for a Loose Parts Monitoring System by Yanlong Cao, Yuanfeng He, Huawen Zheng, Jiangxin Yang

“…In order to reduce the false alarm rate and missed detection rate of a Loose Parts Monitoring System (LPMS) for Nuclear Power Plants, a new hybrid method combining Linear Predictive Coding (LPC) and Support Vector Machine (SVM) together to discriminate the loose part signal is proposed. …”
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A Strongly Convergent Method for the Split Feasibility Problem by Yonghong Yao, Yeong-Cheng Liou, Naseer Shahzad

“…The purpose of this paper is to introduce and analyze a strongly convergent method which combined regularized method, with extragradient method for solving the split feasibility problem in the setting of infinite-dimensional Hilbert spaces. …”
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Successive memory image analysis method for malicious codes by Wei-ming LI, De-qing ZOU, Guo-zhong SUN

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A New Method to Improve the Magnetic Gear Torque by Jing Libing, Zhang Ting, Lin Ying, Cheng Jia, Xie Lihui

“…The two dimensional（ 2 D） finite element（ FE） method is used to simulate the modified magnetic gear model,and the electromagnetic field and electromagnetic torque of the magnetic gear are calculated. …”
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Analysis of evaluating startups methods by a venture fund by E. S. Smolina, A. A. Polovinkina

“…The main groups of indicators that are commonly used by venture fund’s experts to evaluate startups are analyzed; their main disadvantages are identified and systematized. Methods of comparison, general scientific methods of analysis and synthesis, induction and deduction were used in the study. …”
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A Method for Detecting Fungal Contamination in Paperboard Cartons by J. A. Narciso, M. E. Parish

“… Contamination of refrigerated juice products in gable-top cartons may occur by filamentous fungi that are present in the paperboard. The method presently used by the food industry to assess the amount of fungal contamination in the paperboard carton material is cumbersome and inefficient (1). …”
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The method of targeted delivery of drugs to the posterior segment of the eye by A.E. Egorov, D.V. Katz, Baeva N.G, A.B. Movsisyan

“…<br> <b>Patients and methods:</b> the study included 67 patients (97 eyes) with moderate and advanced stages of open-angle glaucoma and normalized intraocular pressure. …”
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Optimization of operational plans based on BWM-QFD method by YIN Xing, PENG Shaohui, FANG Bing

Subjects: “…operational plan|quality function deployment|best-worst method|optimization…”
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MEASUREMENT OF THE AMPLITUDE OF PERIODIC SIGNALS USING THE FIBONACCI METHOD by V. S. Petrushak

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Methods for Constructing Artificial Neural Networks for Data Classification by L. V. Serebryanaya

“…The features of such a model are given. The two implemented methods for constructing artificial neural networks have been used in the software module for testing students’ knowledge. …”
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An Extended Newmark-FDTD Method for Complex Dispersive Media by Yu-Qiang Zhang, Peng-Ju Yang

“…It is observed that this method possesses the advantages of high accuracy, high stability, and a wide application scope and can thus be applied to the treatment of many complex dispersion models, including the complex conjugate pole residue model, critical point model, modified Lorentz model, and complex quadratic rational function.…”
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Multi-FPGA Partitioning Method Based on Topological Levelization by Nabil Kerkiz, Amr Elchouemi, Don Bouldin

“…This paper presents a partitioning method based on topological ordering and levelization. …”
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Implementing the TOPSIS Method for Book Update and Procurement Priority by Nurlindasari Tamsir, Magfirah Magfirah, Vivi Rosida, St. Amina H. Umar, Widyawati Widyawati

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Delay-aware cross-layer optimization method for FANET by Shaojie WEN, Chuanhe HUANG

“…An asynchronous distributed cross-layer optimization (ADCO) method was proposed to solve the problem of jointly considering real-time routing,rate allocation and power control in FANET (flying ad hoc network).And a delay-constrained cross-layer optimization framework was designed to formally represent proposed problem.Then Lagrangian relaxation and dual decomposition methods was used to divide joint optimization problem into several sub-problems.ADCO allowed each relay node to perform the optimization operation for different sub-problems with local information,and the relay nodes could update the dual variables based on asynchronous update mechanism.The simulation results show that the proposed algorithm can improve the network performance effectively in terms of energy efficiency,packet timeout ratio and network throughput.…”
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PROGRAM-TARGET METHOD OF PLANNING OF THE COST OF CONDUCTING EXERCISES by Z. Uvarova, G. Bashashkina

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Direct and Indirect Methods for Studying Human Gut Microbiota by V. T. Ivashkin, O. S. Medvedev, E. A. Poluektova, A. V. Kudryavtseva, I. R. Bakhtogarimov, A. E. Karchevskaya

“…Aim: To review the main methods of intestinal microbiota studying.Key points. …”
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Higher-Order Splitting Method for Elastic Wave Propagation by Jürgen Geiser

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Seismic Analysis of the Transportation Portal by the Combined Asymptotic Method by Alexander Tyapin

“…The author extends the previously proposed combined asymptotic method (CAM) of seismic SSI analysis for the multi-support systems and applies it to the transportation portal as a double-support system (together with the reactor building). …”
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