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  1. 25601

    Mathematical assessment of the role of temperature on desert locust population dynamics. by Dejen Ketema Mamo, Mathew N Kinyanjui, Nourridine Siewe

    Published 2025-01-01
    “…The model incorporates temperature-dependent parameters for key biological processes, including egg development, hopper growth, adult maturation, and reproduction. Theoretical analysis reveals the model's capacity for complex dynamical behaviors, such as multiple stable states and backward bifurcations, suggesting the potential for sudden and unpredictable population shifts. …”
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  2. 25602

    Cooperative secret key generation for multi-hop relaying systems in Internet of things by Shuaifang XIAO, Yunfei GUO, Kaizhi HUANG, Liang JIN

    Published 2018-03-01
    “…The achievable key rate of secret key generation method in multi-hop relaying systems was relative low in Internet of things.A cooperative secret key generation algorithm based on network coding was proposed to improve the achievable key rate.Firstly,all the nodes send training sequences in turn to estimate the channels.After that the relays employ secure network coding technique to assist the two legitimate users to obtain the correlative observations of the same wireless channel,with nothing leakage about the channel information to the eavesdropper.Finally,the two legitimate users agreed on a common secret key directly over the public channel.Theoretical and simulation results validate the performance of the proposed secret key generation algorithm,and obtain that increasing the wireless transmission paths,selecting the transmission path with less hops and larger variance channels can further improve the achievable secret key rate.…”
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  3. 25603

    The Credit Risk Contagion Mechanism of Financial Guarantee Network: An Application of the SEIR-Epidemic Model by Guojian Ma, Juan Ding, Youqing Lv

    Published 2022-01-01
    “…Combining the above findings, it is of great theoretical and practical significance to propose relevant countermeasures for credit risk control of financial guarantee network.…”
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  4. 25604

    Experimental Study of Measuring Algorithm Accuracy of the Electromagnetic Distance Measurement Anticollision Tool by Cui Li, Lei Li, Yuzheng Zhao, Ruichao Zhang, Yuanwei Sun

    Published 2022-01-01
    “…This research result validated the accuracy of the principle of the electromagnetic anticollision tool while drilling cluster well, and it could provide theoretical support for the development of electromagnetic detection tools.…”
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  5. 25605

    Matrix computation over homomorphic plaintext-ciphertext and its application by Yang LIU, Linhan YANG, Jingwei CHEN, Wenyuan WU, Yong FENG

    Published 2024-02-01
    “…., the proposed scheme supported matrix multiplication of arbitrary dimension, and consecutive matrix multiplications.Both theoretical analysis and experimental results show that the proposed scheme requires less rotations on ciphertexts and hence features higher efficiency.When applied to a privacy-preserving Bayesian classifier, the proposed scheme can complete classification tasks with higher security parameters and reduced running time.…”
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  6. 25606

    Stability Switches of Arbitrary High-Order Consensus in Multiagent Networks with Time Delays by Bo Yang

    Published 2013-01-01
    “…Numerical examples and simulation results for fourth-order consensus are provided to demonstrate the effectiveness of our theoretical results.…”
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  7. 25607

    Degrees of freedom of MIMO interference channel with distributed space-time interference alignment by Tengda YING, Wenjiang FENG, Weiheng JIANG, Guoling LIU, Chunan YAO, Taotao BAO

    Published 2018-01-01
    “…In the context of K-user MIMO interference channel (IC),achievable degrees of freedom (DoF) were investigated with distributed space-time interference alignment (DSTIA).By precoding with distributed current and outdated channel state information at the transmitters (CSIT),new tradeoff regions between achievable DoF and CSI feedback delay/frequency were achieved for MISO system.The impact of the number of transmit antennas on achievable DoF in the MISO system was analyzed,revealing that DoF results approach to the outer bound as the number of transmit antennas increases.Further,the impact of the number of receive antennas on achievable DoF was characterized,deriving the range of CSI feedback delay that preserves achievable DoF in the MIMO system.Theoretical and numerical analyses show that,the proposed DSTIA scheme can achieve better sum-DoFs by eliminating inter-user interference perfectly,tighten the gap between achievable DoF and outer bound,as well as improve the achievable rate of the system.…”
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  8. 25608

    Spin orbit coupling effect on coherent transport properties of graphene nanoscopic rings in external magnetic field by A. Poszwa

    Published 2024-12-01
    “…Abstract A theoretical investigation of spin-orbit coupling effect on magnetotransport of a monolayer graphene system having the geometry of Aharonov–Bohm interferometer is presented. …”
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  9. 25609

    Du sol foncier au sol vivant by Atelier Georges, Thibault Barbier, Mathieu Delorme, Charles Rives

    Published 2022-12-01
    “…Starting from this theoretical framework, we conduct two case studies: a regional development project for which we provided assistance to the contracting authority and an urban planning project we were in charge of. …”
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  10. 25610

    'n Evaluasie van die technikon· opleiding van voornemende skakelpraktisyns by Betsie Ferreira

    Published 2022-11-01
    “…The systems perspective, and more specifically Files" (1984) macro systems model for public relations curricula. Serve as theoretical basis for this study. The literature study was supplemented by interviews with former students and employers in the field of public relations. …”
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  11. 25611

    Analysis of Optimal RAP Content Based on Discrete Element Method by Lei Wang, Xiucheng Yang

    Published 2022-01-01
    “…The optimal RAP content analysis result from the DEM simulation was smaller than the laboratory test result, and the theoretical optimal RAP content was 28%. The results of this study provide a reference for the mixture design of recycled asphalt mixture.…”
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  12. 25612

    Rio de Janeiro y la Exposición del Centenario de la Independencia en 1922 by Niuxa Dias Drago, Marcia Furriel Ramos Gálvez

    Published 2017-06-01
    “…The representation of invited nations expressed national historicisms and contributed to the deepening of the theoretical discussion of Brazilian nationality. In fact, the decade of 1920 will be marked by the fermentation of the ideals of nationality and a “Brazilian art”, a field in which architecture will be the protagonist. …”
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  13. 25613

    THE INERTIA FORCE EQUILIBRIUM ANALYSIS OF CRANK-GROUP DRIVING MECHANISM by WU Yao, CAO JuJiang, YAN WeiLiang, XI WenJun

    Published 2017-01-01
    “…The inertia force equilibrium condition for any Crank-group Mechanism can be listed directly by combining the formulas of the mass moment substitution formula of connecting rod truss and the inertia force balancing equation of arbitrary crank in the mechanism,then take Four-Cranks Mechanism as an example to simplify the equilibrium conditions that provide a theoretical basis for different structure form of cranks in the mechanism. …”
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  14. 25614

    Insight into PMD Regimes: An Analysis on Buried Optical Fibres by Winston T. Ireeta, Vitalis Musara, Lorinda Wu, Andrew W. R. Leitch

    Published 2013-01-01
    “…PMD variation in the wavelength domain showed that the mean first-order PMD (FO-PMD) value is independent of whether the FO-PMD statistics of a fibre link approaches the Maxwellian theoretical distribution; the key factor is sufficient random mode coupling. …”
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  15. 25615

    Research on Energy Supply System Applied to Autonomous Underwater Observation Vehicles by Chunjie Wang, Yugeng Chai, Lin Cui

    Published 2022-01-01
    “…Through simulation and experiment, the correctness of the theoretical design is verified and experimental results are analyzed.…”
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  16. 25616

    A State-Dependent Impulsive Nonlinear System with Ratio-Dependent Action Threshold for Investigating the Pest-Natural Enemy Model by Ihsan Ullah Khan, Saif Ullah, Ebenezer Bonyah, Basem Al Alwan, Ahmed Alshehri

    Published 2022-01-01
    “…We investigate the existence and stability of boundary and interior order-1 periodic solution. The theoretical analysis developed in the present paper combined with nonlinear controlling measures as well as nonlinear action threshold methods and techniques laid the foundation for the establishment and analysis of other state-dependent feedback control models.…”
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  17. 25617

    DESIGN AND EXPERIMENTAL ANALYSIS OF A NONLINEAR ULTRAHARMONIC VIBRATOR EXCITER by WANG ChengJun, SHANG ChenChen, ZHANG YuPing

    Published 2022-01-01
    “…Established the dynamic model of the nonlinear ultraharmonic vibrator exciter, solved the nonlinear vibration amplitude-frequency characteristic equation by using the multi-scale method, and analyzed the theoretical feasibility of the vibration exciter to achieve third ultraharmonic resonance. …”
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  18. 25618

    Wyjść poza krąg. O przywracaniu pedagogiki Marii Rogowskiej-Falskiej i Wiery Schmidt by Wojciech Siegień

    Published 2019-09-01
    “… In the article, based on theoretical assumptions about framing mechanisms taken from the work of Georg Lakoff and the Polish tradition of post-dependence research, the author conducts a comparative analysis of cases of reframing the hegemonic and strongly patriarchal narratives regarding the pedagogical legacy of Janusz Korczak and Ivan Jermakov. …”
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  19. 25619

    Récits de femmes, récits de guerre : un genre problématique by Karen Meschia

    Published 2008-09-01
    “…After examining in general terms the epistemological and methodological difficulties involved in using oral sources, personal testimony and individual life-histories, the specific problems raised in using women’s narratives are discussed: their traditionally “muted” voice and fragmented sense of selfhood require that new modes of listening and interpretation be brought into play.To bring into focus the practical implications of this theoretical inquiry, the article concludes by looking more closely at how two feminist researchers have made use of women’s accounts of their lives in order to assess the extent to which their experiences during World War II brought about a modification in their status, notably in the articulation between professional and family life.…”
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  20. 25620