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  1. 11601

    Evaluation on Security of Water Resources in Shiyan City Based on Water Poverty Index by JIANG Huining, YAN Baowei, HUO Lei, CAO Chen

    Published 2020-01-01
    “…Based on the basic concepts and calculation principles of water poverty index (WPI), thispaper takes the Shiyan City in the upper reaches of the Hanjiang River as the research object,selects 23 indicators from the aspects of resources, environment, society and economy, etc.…”
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  2. 11602

    Carrier frequency synchronization technology in UFMC by Lu YANG, Ping HE, Shan WANG

    Published 2016-11-01
    “…In view of the problem that the universal filtered multi-carrier(UFMC)system is sensitive to carrier frequency offset,a frequency synchronization algorithm was proposed.For the sake of keeping good features of UFMC system and reducing the complexity of filter design,the algorithm designed a pilot sequence which sub-bands are orthogonal,and used the non-linear least square algorithm(NLS)to realize the frequency offset estimate.In order to further improve the performance of algorithm in low signal to noise power ratio(SNR)environment,the receiver could process data by constructing sequence and calculating the correlation of estimated signal.Simulation results demonstrate that the designed pilot is superior to all-one pilot in terms of both bit error rate(BER)and CFO performance over additive white Gaussian noise(AWGN)and rayleigh fading channel.And in low SNR environment,the improved algorithm has better performance than NLS algorithm under CFO.…”
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  3. 11603

    Location based routing addressing mechanism of integrated satellite and terrestrial network by Hewu LI, Lixin LIU, Jun LIU, Qian WU

    Published 2020-08-01
    “…The ever-changing characteristics of the connection between the satellite network and the terrestrial network caused by the high-speed movement of the satellites have always been one of the most important problem that plagues the routing mechanism of the satellite network and integrated network.To address this problem,a location addressing based routing mechanism of integrated satellite and terrestrial network (LA-ISTN) was proposed.LA-ISTN exploited the user’s physical location in the user’s IP address to calculate the routing orientation.Based on the orientation,LA-ISTN could choose the best forward interface.Theoretical analysis and simulation experiments show that compared with snapshot protocol and OSPF routing protocol,LA-ISTN significantly reduces the route table storage overhead,with no routing updates cost caused by neighbor packet switching and communication.Inter-satellite route selection is not dependent on the prediction of link connection relations,with strong robustness,can always guarantee the network’s availability.…”
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  4. 11604

    Fair and rational delegation of computation in the universally composable framework by Youliang TIAN, Xiaoxia JIANG

    Published 2021-09-01
    “…To realize the economic and reputation fairness in rational delegation of computation, a fair and rational delegation of computation scheme based on blockchain model of cryptography in the universally composable (UC) framework was proposed.Firstly, a bidirectional reputation incentive model between the delegator and the calculator was presented by combining direct reputation and indirect reputation.Secondly, a dynamic game model with perfect information for fair and rational delegation of computation was constructed based on game theory, and a unique sub-game Nash equilibrium was further obtained.In addition, by analyzing the requirements for verifiability, rational decision of players, economic and reputation fairness, as well as adversary model, the ideal functionality for fair and rational delegation of computation was proposed.Finally, a fair and rational delegation of computation protocol by combining succinct commit-and-prove and smart contract was proposed to securely realize the ideal functionality.The security analysis shows that the proposed protocol satisfies UC security.…”
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  5. 11605

    Body Fat and Health: How Can I Tell if I am at Risk for Health Problems? by Kohrine A. Counts, Anne E. Mathews

    Published 2016-08-01
    “…This 3-page fact sheet describes the body mass index and how to calculate it. Written by Kohrine A. Counts and Anne E. …”
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  6. 11606

    Analysis of Flow Capacity of Liufangdi Section of Main Stream of the Huaihe River Based on MIKE 11 and 21 Models by WANG Kaizhen

    Published 2020-01-01
    “…In order to analyze the flow capacity for the north and south braided channels and upper and lower flooding areas of Liufangdi section of the main stream of the Huaihe River,this paper establishes this one- and two-dimensional hydrodynamic model for main stream of Huaihe from Xiashankou to upper section of Tangyu Lake based on the MIKE 11,21 software,performs a flood diversion simulation on those channels and flooding areas,and determines that the flow capacity of the channel from Xiashankou to upper Liufangdi section cannot meet the design requirements,and the flood discharge capacity of the upper Liufangdi flooding area cannot reach the flood discharge volume required in the Huaihe flood dispatching scheme according to simulation and calculation results of model.The model also serves as the technical support for the adjustment and construction plan of the upper and lower Liufangdi flooding areas.…”
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  7. 11607

    Research of channel quantization and feedback strategies based on multiuser diversity MIMO-OFDM systems by LIANG Xue-jun, ZHU Guang-xi, SU Gang, WANG De-sheng

    Published 2009-01-01
    “…Firstly, a quantization method was proposed by quantized value indicating the modulation level instead of the full values of channel quality information(CQI) and the achievable average spectrum efficiency showed no loss compared with perfect case.Secondly, employment of the integrated design that combined with opportunistic, best, and hybrid feedback scheme was considered and the close-form expression of average spectrum efficiency was deduced in various case.Finally, the calculation of optimal feedback parameters was confirmed from two aspects of feedback channel capacity and capacity relative loss.Extensive simulations were presented to evaluate these proposed strategies.The results match with the numeral analysis very well.The proposed partial feedback schemes can reduce the feedback load greatly with the same system capability, only if the feedback parameters be chosen properly.Wherein, the hybrid feedback combined with quantization performs best and provides the instruction to design the channel feedback of practical systems.…”
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  8. 11608

    Hunting for Direct CP Violation in B¯s0⟶π+π−K∗0 by Sheng-Tao Li, Gang Lü

    Published 2022-01-01
    “…Furthermore, taking ρ−ω mixing into account, we calculate the branching ratio for B¯s0⟶ρωK∗0. We also discuss the possibility of observing the predicted CP violation asymmetry at the LHC.…”
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  9. 11609

    Convergence Analysis Hilbert Space Approach for Fuzzy Integro-Differential Models by Jingwen Zhang

    Published 2022-01-01
    “…Here are a few illustrations to help understand that it is possible to deal with physical issues that require complicated geometric calculations with the assistance of the method explained in this article.…”
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  10. 11610

    Le Caire, 2011. Plongée ethnographique au coeur des lijân sha’abeya (comités populaires) by Perrine Lachenal

    Published 2012-10-01
    “…Tahrir Square in downtown Cairo appeared as the principal scene of the demonstrations that shook Egypt in early 2011 and drove Hosni Mubarak to step down – almost to the point of forgetting the rest of the city, an immense area which was affected during the same period by dynamics that gave rise to new phenomena, including “popular committees”. To cope with the calculated withdrawal of police and fear caused by reports – real or imagined – of urban violence, residents of Cairo got organized. …”
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  11. 11611

    Resource Aware Routing in Heterogeneous Opportunistic Networks by Sadaf Yasmin, Rao Naveed Bin Rais, Amir Qayyum

    Published 2016-01-01
    “…This stochastic picture of a node behavior in multiple dimensions is then effectively employed in calculating its next-hop fitness. We also devise a method based on learning rules of neural networks which dynamically determines relative importance of each dimension to maximize next-hop utility of a node. …”
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  12. 11612

    Análise morfométrica das sub-bacias de 3ª ordem da bacia hidrográfica do Rio do Peixe, Minas Gerais by Isabela Belmira Santos Giarola, Cinthia Maria Amaral, Daiane Evangelista de Oliveira

    Published 2019-12-01
    “…For the spatialization of the results of the calculations of the morphometric parameters, thematic maps were generated that aided in the comparative interpretations. …”
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  13. 11613

    Research on Design and Application of National Fitness System by Shengyou Wang

    Published 2021-01-01
    “…On this basis, through the collection of users’ fitness data rating data, the data are transformed into fitness data rating matrix, and the matrix is analyzed and calculated to realize the intelligent recommendation of fitness data and complete the design of national fitness data recommendation algorithm. …”
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  14. 11614

    Research on Gearbox Fault Diagnosis Based on LMD Energy Entropy by Xu Le, Li Wei, Zhang Bo, Zhu Yubin, Lang Chaonan

    Published 2022-10-01
    “…The LMD method is used to process the gearbox vibration signal to obtain several PF components;the dispersion value of component energy in the frequency domain is calculated using the uneven distribution of gearbox vibration signals in different states, which is the LMD energy entropy; the gearbox fault classification is carried out through the distribution of LMD energy entropy in different states. …”
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  15. 11615

    INFLUENCE OF PICKS ARRANGEMENT MODE ON PERFORMANCE OF SHEARER by ZHAO LiJuan, ZHAO MingYang

    Published 2017-01-01
    “…The drum ’s load calculation program of the staggered and sequential arrangement has been developed by MATLAB based on the shearer cutting mechanics model,which can get drum load spectrum,cutting performance parameters and the rate of lump coal under 5 typical working conditions;Shearer loading performance of two picks arrangement were analyzed by three-dimensional discrete element software PFC;The reliability of the key parts of the coal machine under different conditions has been analyzed Based on the PRO/E,MATLAB,ANSYS and ADAMS.The results show that:When the coal is cutting coal gangue,the pick should be used in sequential order,the load fluctuation is small and the reliability is high;Under normal conditions,the sequential pick arrangement of shearer can improve the lump coal rate,the cutting area will increased 1.99 times and the founder rate will increased 21% compared with the sequential type.…”
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  16. 11616

    Gear Modification Design Considering Axis Parallelism Deviation and Thermal Deformation by Yang Xinru, Lin Tengjiao, He Zeyin

    Published 2016-01-01
    “…After that,the method of calculating appropriate amount of modification is obtained. …”
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  17. 11617

    Decision Support Model for Introduction of Gamification Solution Using AHP by Sangkyun Kim

    Published 2014-01-01
    “…The weights of decision criteria are calculated through a survey by the professionals on game, information systems, and business administration. …”
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  18. 11618

    From Public Funding to Public Investment in Research: A Study of Research Funding Policies and their Impact through two Research Assessment Campaigns in the United Kingdom by Marie-Agnès Détourbe

    Published 2016-02-01
    “…Their results are used as a basis for calculating the recurrent research grants allocated to higher education institutions by the funding councils within the global higher education public budget. …”
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  19. 11619

    Detection method for selfish routes based on the sequential probability ratio test by Qi WANG, Qingping WANG, Huaixing WANG, Zheng’an XIAO

    Published 2016-03-01
    “…According to a network model based on the sequential probability ratio test(SPRT),one detection method of selfish routes with respect to the routing functionality in wireless sensor network was developed.Through the analysis of the observed sample values of the nodes,the calculated routes evaluation values were compared with the known threshold values so as to determine whether it was selfish route.Simulation results show that the sequential sampling scheme based on the sequential probability ratio test had high detection accuracy,and the number of the required observation was greatly reduced,so it could operate faster.A merit of SPRT is that the number of observations required to test statistical hypotheses need not be determined in advance when compared to other methods based on a fixed number of observations.This allows for making prompt decision on the behavior of damage to the network,thus it can limit the scope of the damaged networks.…”
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  20. 11620

    Determination of the monetisation coefficient dynamics of the Russian economy and its impact on macroeconomic indicators by A. V. Berdyshev, D. K. Sopov

    Published 2022-11-01
    “…Based on the correlation analysis, the existence of a strong relationship between the monetisation coefficient and the unemployment rate in Russia has been determined, while an increase in unemployment in the country contributes to a decrease in the gross domestic product, which, in turn, is an important component in calculating the monetisation level. A direct linear relationship between the monetisation level and gross domestic product has been revealed. …”
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