Nonlinear Effects of Changes in Government Expenditures Across Global Economies: Insights from a QNARDL Analysis by Rianmahardhika Sahid Budiharseno, Min-Joon Kim

“…Unlike traditional models, this study decomposes government expenditure into positive and negative changes, estimating their impacts across different growth quantiles. The QNARDL model provides more detailed information than linear models such as the threshold autoregressive model, panel threshold method, quadratic form, and data envelopment analysis. …”
Get full text

Feedback bit allocation in distributed antenna array systems by Shuai ZHANG, Peng PAN, Cui WANG

“…In a frequency division duplex communication system,precoding at the base station usually requires terminal feedback channel state information.In a distributed array system,the channel conditions between the terminal and different access nodes in the cell are different because multiple access nodes are arranged at different locations in the cell.When the resources for feedback channel state information are limited,the allocation method of feedback bit needs to be optimized to improve the overall performance of the system.In a multi-user distributed array system,an access node selection method based on distance threshold was adopted.Based on this method,the quantization characteristics of the random vector quantization codebook and the Taylor expansion method were used to derive the system quantization capacity loss,and then an approximate expression was given.Based on this expression,a feedback bit allocation method was proposed.Compared with other allocation methods,the method of this paper was more universal because it did not limit the number of access nodes selected by the user.The simulation results show that the strategy proposed is superior to the traditional equal-bit allocation scheme and can obtain better performance when the feedback resources are limited.…”
Get full text

Research on Beampattern Synthesis of Conformal Array Based on Space-Variability Suppression by Sijia Liu, Minghai Pan

“…In order to obtain a stable beampattern, the convex optimization method is used to solve the weighted value of the amplitude and phase of the elements under the condition of satisfying the set beam gain threshold so that the optimized main lobes of the beams with different directions approach the main lobe of the reference beam. …”
Get full text

Similarities in the Low-Energy Elastic and Ps Formation Differential Cross-Sections for e⁺-H and e⁺-He Scattering by Peter Van Reeth, John W. Humberston

“…In the present work, the elastic scattering differential cross-sections (EDCSs) for e⁺-H and e⁺-He below the first excitation threshold of the target were evaluated using the Kohn variational method and found to be very similar. …”
Get full text

MULTI–CRITERIA OPTIMIZATION OF A PRODUCT RECIPE COMPOSITION by Marina A. Nikitina, Irina M. Chernukha

“…The use of the IT-technologies realized by the methods of multi-criteria structure optimization and mathematical programming allows correcting and optimizing food recipes by different criteria of the non-linear character, structuring the obtained set of alternatives and detecting the optimal food recipe option with the targeted quality, composition and properties or a diet for a particular population category with consideration for the therapeutic and prophylactic direction.…”
Get full text

Automatic Detection and Unsupervised Clustering-Based Classification of Cetacean Vocal Signals by Yinian Liang, Yan Wang, Fangjiong Chen, Hua Yu, Fei Ji, Yankun Chen

“…This paper overcomes the limitations of the traditional threshold-based method, and the threshold is set adaptively according to the mean value of the signal energy in each frame. …”
Get full text

GOTHiC, a probabilistic model to resolve complex biases and to identify real interactions in Hi-C data. by Borbala Mifsud, Inigo Martincorena, Elodie Darbo, Robert Sugar, Stefan Schoenfelder, Peter Fraser, Nicholas M Luscombe

“…Our method outperforms previous methods and provides a statistical framework for further data analysis, such as comparisons of Hi-C interactions between different conditions. …”
Get full text

Energy-Efficient Routing Protocol Based on Zone for Heterogeneous Wireless Sensor Networks by Jia Yanfei, Chen Guangda, Zhao Liquan

“…Firstly, it supposes that the different types of nodes are distributed in different zones. …”
Get full text

Mathematical Simulation about Gas Transport in a Dual-Porosity Tight Gas Reservoir considering Multiple Effects by Jing Chen, Xinmin Song, Baozhu Li, Wuguang Li, Changlin Liao, Lei Yang

“…The partial differential equation and definite solution condition are discretized by a central difference method. A finite difference procedure was compiled and applied to solve this numerical model and predict the productivity of a production well in a dual-porosity tight gas reservoir. …”
Get full text

Noise-tolerant Grover's algorithm via success-probability prediction by Jian Leng, Fan Yang, Xiang-Bin Wang

“…We propose a noise-tolerant method that significantly reduces the running time and exponentially improves the error threshold with number of qubits for Grover's search. …”
Get full text

Single-Vehicle Transportation Security System of Radioactive Materials Based on Group Relationship to Prevent Loss and Theft by Tiejun Zeng, Xiaohua Yang, Yaping Wan, Zhenghai Liu, Panpan Jiang

“…In the enhanced type, the value is smaller, otherwise the value is larger. A specific timeout threshold quantification scheme is proposed. Experiments show that the method proposed in this article is effective.…”
Get full text

Model of three-way decision based on the space of set pair information granule and its application by Chun-ying ZHANG, Li-ya WANG, Ming-xia LI, Bao-xiang LIU

“…Through the analysis of the existing theory and method of three-way decision,model of three-way decision based on the space of set pair information granule was proposed,which was to explain the intension and extension of three-way decision on the view of unity of opposites.Firstly the space structure of set pair information granule can be di-vided into positive granule,negative granule,different granule,which were similar and slightly different with three re-gions of generalized three-way decision.The three kinds of information granules in set pair information granule space were built based on certain positive degree,negative degree and different degree.Secondly,according to the given threshold,set pair information granule is divided into mutually disjointing positive region,negative region and different region.Based on these three regions,the computing method of decision loss function is put forward,and the process of decision-making algorithm is obtained use the three-way decision method of set pair information granule space to evalu-ate and make decision on risk investment,then good decision results have been achieved.…”
Get full text

Model of three-way decision based on the space of set pair information granule and its application by Chun-ying ZHANG, Li-ya WANG, Ming-xia LI, Bao-xiang LIU

“…Through the analysis of the existing theory and method of three-way decision,model of three-way decision based on the space of set pair information granule was proposed,which was to explain the intension and extension of three-way decision on the view of unity of opposites.Firstly the space structure of set pair information granule can be di-vided into positive granule,negative granule,different granule,which were similar and slightly different with three re-gions of generalized three-way decision.The three kinds of information granules in set pair information granule space were built based on certain positive degree,negative degree and different degree.Secondly,according to the given threshold,set pair information granule is divided into mutually disjointing positive region,negative region and different region.Based on these three regions,the computing method of decision loss function is put forward,and the process of decision-making algorithm is obtained use the three-way decision method of set pair information granule space to evalu-ate and make decision on risk investment,then good decision results have been achieved.…”
Get full text

Effect of Structure on Osteogenesis of Bone Scaffold: Simulation Analysis Based on Mechanobiology and Animal Experiment Verification by Jialiang Li, Zhongwei Sun, Xinyu Wei, Qinghua Tan, Xijing He

“…The osteogenesis pattern of the bone scaffold in the simulation analysis was consistent with the results of animal experiments, and the bone volume calculated by the tissue fraction threshold method and the elastic modulus threshold method was very similar to the in vivo experiment. …”
Get full text

Simulation and Optimization of Automated Guided Vehicle Charging Strategy for U-Shaped Automated Container Terminal Based on Improved Proximal Policy Optimization by Yongsheng Yang, Jianyi Liang, Junkai Feng

“…When comparing the proposed method-based charging threshold with a fixed charging threshold strategy across six different scenarios with varying charging rates, the proposed charging strategy demonstrates better adaptability to terminal condition variations in two-thirds of the scenarios.…”
Get full text

In-Season Automated Mapping of Xinjiang Cotton Based on Cumulative Spectral and Phenological Characteristics by Yongsheng Huang, Yaozhong Pan, Yu Zhu, Xiufang Zhu, Xingsheng Xia, Qiong Chen, Jufang Hu, Hongyan Che, Xuechang Zheng, Lingang Wang

“…Second, using the maximum between-class variance method (OTSU) and Sauvola algorithms, a new local adaptive threshold method (Otsu–Sauvola) was developed for the automatic determination of the classification threshold. …”
Get full text

Effect of diffusion temperatures on microstructure and properties of NiCoCrAlYHf bond coatings by ZHANG Bin, DING Ning, CAI Yan, ZHAO Wenjun, LIU Yuzhuo, MU Rende, ZHANG Xuejun

“…NiCoCrAlYHf coating （HY5 coating） was prepared on DD6 alloy by vacuum arc ion plating method. After different diffusion temperature treatments， the ceramic coating was deposited by electron beam-physical vapor deposition（EB-PVD） method. …”
Get full text

In Search of the Consequence Severity of Traffic Conflict by Ruoxi Jiang, Shunying Zhu, Pan Wang, QiuCheng Chen, He Zou, Shiping Kuang

“…The field data were brought into the conflict consequences severity model to calculate the conflict severity rate of each section under different TTC thresholds. For comparison, the traditional conflict rate of each section under different TTC thresholds that considered only the number of conflicts was also calculated. …”
Get full text

Biomechanical impacts of 3D arch-support insoles on countermovement jumps: a statistical parametric mapping analysis by Qiu-qiong Shi, Qiu-qiong Shi, Kit-lun Yick, Kit-lun Yick, Rui-feng Huang, Rui-feng Huang, Chu-hao Li, Jin long Wu

“…SPM was used to statistically compare the biomechanical changes across the different 3D insoles during six continuous key phases of CMJs.ResultsWith the 3D arch-support insoles donned, supra-threshold clusters of the ankle kinematics in the sagittal and frontal planes exceeded the critical thresholds during propulsion-flight (p = 0.022) and the landing (p = 0.033). …”
Get full text

Fault Identification of Gearbox Degradation with Optimized Wavelet Neural Network by Hanxin Chen, Yanjun Lu, Ling Tu

“…The back-propagation (BP) algorithm is studied and applied to optimize the scale and translation parameters of the Morlet wavelet function, the weight coefficients, threshold values in WNN structure. Four different gear crack damage levels under three different loads and three various motor speeds are presented to obtain the different gear fault modes and gear crack degradation in the experimental system. …”
Get full text