Showing 4,321 - 4,340 results of 21,030 for search '"multiplication"', query time: 0.08s Refine Results
  1. 4321

    Incorporating a Bayesian Network into Two-Stage Stochastic Programming for Blood Bank Location-Inventory Problem in Case of Disasters by Shutong Chen, Changjun Wang

    Published 2019-01-01
    “…The subsequent operational stage is composed of multiple periods, some of which may suffer disasters and initiate corresponding rescue operations. …”
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  2. 4322

    Robust Localization in Distributed MIMO Radar Using Delay and Angle Measurements with Impulsive Noise Robust TD/AOA Localization in Impulsive Noise by Genling Huang, Yanlong Zhu

    Published 2021-01-01
    “…This paper considers target localization using time delay (TD) and angle of arrival (AOA) measurements in distributed multiple-input multiple-output (MIMO) radar. Aiming at the problem that the localization performance of existing algorithms degrades sharply in the presence of impulsive noise, we propose a novel localization algorithm based on ℓp-norm minimization and iteratively reweighted least squares (IRLS). …”
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  3. 4323

    Optimization of Building Exit Layout: Combining Exit Decisions of Evacuees by Guofeng Ma, Yuqi Wang, Shan Jiang

    Published 2021-01-01
    “…Exits are essential to the efficiency of building evacuation due to its irreplaceable function, and the layout of multiple exits has always been the key concern for architectural design. …”
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  4. 4324

    Improved Tomlinson–Harashima Precoding for Ultra Reliable Communication in Intelligent Transportation Systems by Shibiao He, Xinyi Yang, Yong Liao

    Published 2021-01-01
    “…Aiming at the technical challenges of information transmission caused by the fading effect and the fast time-varying characteristics of the channel for C-V2X communication, an improved Tomlinson–Harashima precoding (THP) algorithm for multiple input multiple output (MIMO) systems is proposed. …”
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    Article
  5. 4325

    Abastecimento alimentar em contextos de crise: uma análise sobre o Haiti by John Osthe, Valdemar João Wesz Junior

    Published 2024-07-01
    “…Historically and currently, the Republic of Haiti has faced multiple crises which have had an intense and direct impact on its population. …”
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  6. 4326

    Perceived stress and its psychosocial and clinical correlates among patients with pulmonary tuberculosis: A cross-sectional study by Mustefa Mohammedhussein, Aman Dule, Worknesh Tessema, Almaz Mamaru, Arefayne Alenko

    Published 2023-01-01
    “…Assumptions of linear regression were checked. Multiple regression analysis was done to identify statistically significant association at P < 0.05. …”
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  7. 4327

    Effects of Differently Located Clearance on the Dynamic Responses of a Two-Degree-of-Freedom Vibration System by Yan Yang, Guanwei Luo

    Published 2021-01-01
    “…The mechanical model of a two-degree-of-freedom forced harmonic vibration system with multiclearance rigid constraints is established, considering the location schemes of symmetrical both-sided clearance and asymmetrical multiple clearance. Existence domains, correlative distributions, and bifurcation scenarios of periodic vibrations are analyzed using multiparameter and multiperformance cosimulation. …”
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  8. 4328
  9. 4329

    Les représentations sociales pour cerner l’évolution des conceptions de la forêt québécoise : une analyse autour du documentaire L’erreur boréale by Isabelle Paré

    Published 2017-05-01
    “…The multiplicity of ways to apprehend nature and the environment necessarily transpose to the understanding of forests. …”
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  10. 4330

    Las dos caras del veganismo: beneficios y riesgos en la salud de una dieta vegana by José Alfredo González-Ortiz

    Published 2023-01-01
    “…Al final, se identifican múltiples vacíos en el conocimiento.…”
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  11. 4331

    Abelia x grandiflora 'Edward Goucher' by Edward F. Gilman

    Published 2004-10-01
    “… Glossy abelia is a fine-textured, semi-evergreen, sprawling shrub with 1.5-inch-long, red-tinged leaves arranged along thin, arching, multiple stems (Figure 1). It is a hybrid between A. chinensis and A. uniflora. …”
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  12. 4332

    Multi-satellite cooperative beam hopping resource allocation based on interference perception by Jinlong HU, Jihong LIU, Yiqing ZHOU, Huan CAO, Zifan LIU, Jiawei ZHAO, Jinhong YUAN

    Published 2023-08-01
    “…Beam hopping (BH) technology is one of effective ways to solve limitation of beam resources and enhance the system coverage ability of low earth orbit (LEO) satellite systems.Existing research typically considers beam hopping resource allocation for a single LEO satellite, however, the actual LEO system is covered by multiple satellites in multiple orbits, and existing research ignores beam interference between satellites, which can easily lead to a decrease in system throughput and service quality.To address these issues, this paper designs an interference aware cooperative resource allocation for LEO with beam hopping (IARA-BH), aiming to maximize the beam service satisfaction (BSS).A BH resource allocation scheme by multi satellite interference coordination based on simulated annealing algorithm (MSIC-SAA) is proposed to solve the optimization problem.Simulation experiments show that compared to beam hopping resource allocation schemes that only consider a single satellite, the BSS of the MSIC-SAA algorithm has been improved by 47.24%, the average signal to interference noise ratio (SINR) has been improved by 27.40%, and the system throughput has been improved by 22.92%.…”
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  13. 4333

    Serial intrauterine transfusion for severe fetal anemia due to anti-M alloimmunization by Rachmat Dediat Kapnosa Hasani, Gatot Abdurazak, Adhi Pribadi

    Published 2024-12-01
    “…The peak systolic velocity in the fetal middle cerebral artery (PSV-MCA) was 1.44 multiples of the median corresponding to fetal anemia. …”
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  14. 4334

    Technological Tool for Formative Assessment in Higher Education: ZipGrade by Bani Arora, Abdulghani Al-Hattami

    Published 2025-01-01
    “…Challenges such as the necessity for physical printing of answer sheets, a predisposition towards multiple-choice questions, and infrastructural and policy-related barriers were identified, suggesting areas for further development and support. …”
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  15. 4335

    Knowing What You Need But Not What You Want: Affordances and Action-Defined Templates in Neglect by Glyn W. Humphreys, M. Jane Riddoch

    Published 2002-01-01
    “…For both action and name-defined targets, there were also larger effects of the number of distractors when search was for multiple rather than single targets, even when the numbers of distractors were kept constant. …”
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  16. 4336

    Design of fairness-driven RSMA-SDMA precoding by Yanjing SUN, Fengzhi CHENG, Jiasi ZHOU, Song LI

    Published 2022-04-01
    “…In view of the minimum user rate and system fairness when the transmit power was limited, a user access mode selection transmission strategy by joint rate-splitting multiple access (RSMA) and space division multiple access (SDMA) was proposed.The precoding design problem of maximizing system fairness was modeled.In order to solve the discrete non-convex optimization problem formed, it was decomposed into two non-convex sub-problems, such as the user access mode selection and the inner optimal precoding design.For the precoding design, a quadratic transform of multidimensional and complex FP was used to transform the precoding design into double rotation, and the closed-form expression of the optimal solution for the outer user access mode selection was obtained.Convex optimization was used to solve the inner precoding design problem, and successively optimize the user access mode selection.An algorithm based on fractional optimization was proposed for the problem, and the optimal precoding vector was designed using the quadratic transform of multidimensional and complex FP to maximize the minimum user rate under power constraints.The simulation results prove that compared with RSMA, SDMA and other transmission strategies, the fairness-driven RSMA-SDMA precoding design improves the minimum user rate of the system and guarantees the system fairness.…”
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  17. 4337

    Time Varying Reliability Analysis of the MG 400/951 Shearer Cutting Part Planet Carrier by Minghao Li, Jie Qiao, Lijuan Zhao, Jiayi Fan, Meichen Zhang, Bing Luo

    Published 2022-01-01
    “…Combined with reliability sensitivity design theory,the influence of multiple weak areas design variables on the time-varying reliability of the cutting part planet carrier is analyzed. …”
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  18. 4338

    Environment-aware based access point deployment optimization for cell-free massive MIMO system by Jing JIANG, Yongqiang LIU, Fengyang YAN, Sha TAO, Sutthiphan WORAKRIN

    Published 2024-02-01
    “…Cell-free massive multiple-input multiple-output (MIMO) systems deploy a large number of access point (AP) across the coverage area which can provide uniform high-rate services to users.However, the quality of coverage would be affected by path loss, shadow fading scatters, and environmental occlusions around the randomly placed AP in conventional cell-free massive MIMO systems that do not consider their impact.Considering the impact of actual wireless propagation environments, an AP deployment scheme was proposed to acquire uniform and consistent coverage.Firstly, a hybrid probabilistic path loss model was utilized to characterize various wireless propagation environments.Then, the AP deployment optimization problem was solved with the objective of maximizing the average throughput.Finally, the problem was transformed into a Markov game process and solved by the multi-agent deep deterministic policy gradient (MADDPG) algorithm.The simulation results demonstrate that the proposed scheme can provide more uniform coverage in complex environments and serve users with reliable and consistent service compared to random AP deployment and existing AP deployment methods.…”
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  19. 4339

    Multi-function supported privacy protection data aggregation scheme for V2G network by Baiji HU, Xiaojuan ZHANG, Yuancheng LI, Rongxin LAI

    Published 2023-04-01
    “…In view of the problem that the functions of the current privacy protection data aggregation scheme were insufficient to meet the increasingly rich application requirements, a multi-function supported privacy protection data aggregation (MFPDA) scheme for V2G network was proposed.By using cryptographic algorithms such as BGN, BLS, and Shamir’s secret sharing, as well as fog computing and consortium blockchain technology, multiple security functions like fault tolerance, resistance to internal attacks, batch signature verification, no need for trusted third parties, and multiple aggregation functions were integrated into one privacy protection data aggregation scheme.Security analysis shows that the proposed scheme can protect data aggregation’s security, privacy and reliability.The performance evaluation shows that the introduction of fog computing can significantly reduce the computing overhead of the control center, and the reduction rate can be as high as 66.6%; the improvement of the consortium blockchain can effectively reduce the communication and storage overhead of the system, and the reduction rate can reach 16.7% and 24.9% respectively.…”
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  20. 4340

    The Rank-One property for free Frobenius extensions by Bellamy, Gwyn, Thiel, Ulrich

    Published 2023-10-01
    “…A conjecture by the second author, proven by Bonnafé–Rouquier, says that the multiplicity matrix for baby Verma modules over the restricted rational Cherednik algebra has rank one over $\mathbb{Q}$ when restricted to each block of the algebra.In this paper, we show that if $H$ is a prime algebra that is a free Frobenius extension over a regular central subalgebra $R$, and the centre of $H$ is normal Gorenstein, then each central quotient $A$ of $H$ by a maximal ideal $\mathfrak{m}$ of $R$ satisfies the rank-one property with respect to the Cartan matrix of $A$. …”
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