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    Calculation of Bearing Capacity and Deformation of Composite Pile Foundation with Long and Short Piles in Loess Areas by Tianzhong Ma, Yanpeng Zhu, Xiaohui Yang

    Published 2020-01-01
    “…Additionally, based on the equation to calculate the bearing capacity of multielement composite foundations, a method considering the negative frictional resistance was proposed for calculating the bearing capacity of composite pile foundations with long and short piles. …”
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  6. 666

    Calculation of GIC in the North Island of New Zealand Using MT Data and Thin‐Sheet Modeling by K. Mukhtar, M. Ingham, C. J. Rodger, D. H. Mac Manus, T. Divett, W. Heise, E. Bertrand, M. Dalzell, T. Petersen

    Published 2020-11-01
    “…Abstract Geomagnetically induced currents (GICs) in the North Island New Zealand power transmission network during two large magnetic storms are calculated from both magnetotelluric (MT) data and a thin‐sheet conductance model of New Zealand previously used to study GIC in the South Island. …”
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  7. 667
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    Calculation Method for the Critical Thickness of a Karst Cave Roof at the Bottom of a Socketed Pile by Nie Qingke, Li Xilai, Yuan Wei, Wang Anli, Wang Wei, Jia Xiangxin, Shang Weidong

    Published 2021-01-01
    “…In this study, we present an approach for calculating the critical thickness-to-diameter ratio of a karst cave roof η (η = h/d, the ratio of karst cave roof thickness to pile diameter) based on the generalized Hoek–Brown criterion by virtue of the limit analysis method, which considers the pile tip load, hardness degree of the intact rock, and rock mass quality. …”
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  9. 669

    Adaptive message sending rate control method based on channel congestion cost calculation in VANET by Ming-jian LIU, Guo-zhen TAN, Shuai-bing LI, Nan DING, Cai-xia SONG

    Published 2016-10-01
    “…In VANET,sending beacon messages reliably played a vital role in cooperative awareness and collision avoidance,and changes of vehicle density in real traffic environment had a direct impact on channel load and will cause the channel congestion to a certain degree,thus causing inefficiency of cooperative security applications.Aiming at this issue,a adaptive method based on channel congestion detection to control message sending rate was designed.First of all,an interference model that can accurately reflect the current state of the channel was established.Secondly,according to the Shannon information theory and network utility maximization theory,the optimal transmission speed of the current node in the physical layer was calculated.Finally,according to the mismatch of transmission rate and transmission queue length,the next moment's cost function of the channel congestion degree by monitoring the message queue was established to avoid channel congestion and queue overflow.The simulation experiment shows that the scheme effectively reduces communication transmission delay and avoids channel congestion,ensuring that the data be sent reliably.…”
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  10. 670

    INFLUENCE ANALYSIS OF SMALL AMPLITUDE LOAD CYCLE TO FATIGUE LIFE CALCULATION BASED ON FLIGHT PARAMETERS by XU KeJun, WANG YongQi, XIA YiRui, QIN HaiQin

    Published 2016-01-01
    “…Analyzed the speed cycles distribution of a certain type of aeroengine,calculated the influence of small speed cycles which amplitude is lower than 10% of high pressure rotor speed by Miner’s linear cumulative damage theory,compared the influence of different removal methods to damage calculation results and pointed the advantages and disadvantages of each method; Based on EGD-3 standards,put forward the extraction method of removing small cycles and verify its rationality by calculation,then define the sensitivity factor of removing small speed cycles in fatigue calculation as 0. 3% for a certain type of aeroengine.…”
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  11. 671

    A Calculation Method of Angular Contact Ball Bearing Contact Stiffness Considering Lubrication Effect by Fengxia Lu, Zhiqiang Zhao, Wenbin Pan, Heyun Bao

    Published 2021-09-01
    “…A dynamics model of high-speed angular contact ball bearings under the lubrication condition is established, in the calculation of contact deformation and contact stiffness between ball bearing and inner/outer ring, the influence of lubricating oil entrainment and squeeze during high-speed rotation is considered. …”
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    Research on calculation of transverse bending moment of deck of box girder with long-span and long cantilever by Zhaonan Wang, Ruizheng Wang

    Published 2025-01-01
    “…The results showed that the transverse bending moment of the long-cantilever plate calculated using Baider Bahkt formula slightly deviated from the calculated value of the plate-shell element, and the deviation between the calculated values of Baider Bahkt formula and Sawko formula was 7.72%. …”
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    The Use of the Direct Optimized Probabilistic Calculation Method in Design of Bolt Reinforcement for Underground and Mining Workings by Martin Krejsa, Petr Janas, Işık Yilmaz, Marian Marschalko, Tomas Bouchal

    Published 2013-01-01
    “…The objective of this paper is to indicate the current scope which might be covered by the new method—Direct Optimized Probabilistic Calculation (DOProC) in assessments of reliability of load-carrying structures. …”
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    Calculation and Analysis of Effective Utilization Coefficient of Farmland Irrigation Waterin Mountainous Area of Yunnan Plateau by CAO Yan, LI Youliang, WANG Shupeng, ZHANG Lei, ZHOU Xiaoyan, WANG Jie, HAN Ling

    Published 2022-01-01
    “…To explore the calculation method of effective utilization coefficient of farmland irrigation water in the mountainous area of Yunnan Plateau,we scientifically evaluated the efficiency of farmland irrigation water.Taking Yongshan County of Zhaotong City,Yunnan Province as the research area,we selected 2 sample irrigation districts and15 typical fields to calculated and analyze the effective utilization coefficient of farmland irrigation water.The net irrigation water of sample irrigation districts was calculated after measurement and investigation.Head-end measurement was used to calculate and analyze the effective utilization coefficient of farmland irrigation water in the sample irrigation districts,and then the coefficient of Yongshan County from 2018 to 2020 was calculated.The results show the followings.① The net irrigation water in the sample irrigation districts of Yongshan County exhibited a downward trend from 2018 to 2020 overall.The net irrigation water for Zanthoxylum bungeanum,Amomum villosum,Citrus reticulata,flue-cured tobacco and Solanum tuberosum in Yongshan County decreased successively.② The effective utilization coefficient of farmland irrigation water was larger in the medium-sized irrigation district than in the small irrigation district.③ The effective utilization coefficient of farmland irrigation water in Yongshan County was increased gradually from 2018 to 2020,i.e.,0.489 2,0.502 0 and 0.508 5,respectively.The research results are reasonable and reliable,which can reflect the actual situation in the irrigation districts.…”
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    Handling Low-Density LiDAR Data: Calculating the Heights of Civil Constructions and the Accuracy Expected by Rubén Martínez Marín, Elena Lianes Revilla, Juan Carlos Ojeda Manrique, Miguel Marchamalo Sacristán

    Published 2013-01-01
    “…In order to answer those questions, we have developed a specific methodology based on establishing a set of control points on the top of several constructions and calculating the elevation of each one using postprocessing GPS. …”
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