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  1. 12221

    Thermodynamic Formulations of Excess and Absolute Values of Adsorption on Solid Surfaces: A Comparison of One- and Two-Phase Approaches by H. Wittkopf, P. Bräuer

    Published 1986-12-01
    “…Using statistical thermodynamic calculations the difference between these basic concepts is shown over a wide temperature range for the first virial coefficient, the internal energy and the heat capacity of adsorption.…”
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  2. 12222

    Lower Bound Solution of Foundation Bearing Capacity beneath Strip Footing Based on Parabolic Mohr Failure Criterion by Fang Wei, Shi Li-jun

    Published 2020-01-01
    “…The static allowable stress field of foundation under strip foundation is constructed by means of stress columns, and the calculation method of the lower bound foundation bearing capacity based on the two-parameter parabolic Mohr yield criterion is proposed. …”
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  3. 12223

    Synthesis of a Flat-bottom Follower Cam-linkage Mechanism with Swing Variable Pivot by Guanglu Yang, Tao Zhang, Suijun Liu, Liangwen Wang, Zhongfu Lu, Xuede Chen, Tuanhui Wang

    Published 2021-11-01
    “…Finally,the corresponding follower motion law is selected,the corresponding cam contour coordinates are calculated,and the entire cam contour curve is obtained using interpolation. …”
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  4. 12224

    RESEARCH ON FAULT DIAGNOSIS METHOD OF ROLLING BEAR BASED ON SYMBOLIC ANALYSIS OF INTRINSIC MODE FUNCTION by HOU HePing, XU ZhuoFei, LIU Kai

    Published 2016-01-01
    “…Secondly,analyze the symbolization of intrinsic mode functions in order to find relationship between different faults hidden in them. At last,calculate entropy of symbolized sequence to establish a characteristic vector which can express fault in some way. …”
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  5. 12225

    Equilibrium and Kinetic Studies of the Adsorption of Zn(II) Ions onto Natural and Activated Kaolinites by Ali Riza Kul, Necla Caliskan

    Published 2009-02-01
    “…Thermodynamic parameters such as the enthalpy (ΔH 0 ), Gibbs' free energy (ΔG 0 ) and entropy (ΔS 0 ) were calculated for natural, thermally-activated and acid-activated kaolinite. …”
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  6. 12226

    Structural and Passability Analysis of Pipeline Robot by Zhiqiang Li, Weiguo Li, Zhicheng Feng, Lili Wang, Wen'gang Yan, Shijie Guo

    Published 2021-06-01
    “…Experimental results show that the structure design and calculation of the robot are reasonable,the size and motion constraint analysis of the robot in the bend pipe are correct,the robot can successfully pass the bend pipe with <italic>R</italic>≥1.5<italic>D</italic>. …”
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  7. 12227

    Efektivitas layanan bimbingan dan konseling untuk meningkatkan pemahaman pentingnya melanjutkan pendidikan ke perguruan tinggi by Nikmarijal Nikmarijal, Bukhari Ahmad

    Published 2023-12-01
    “…The descriptive statistics table revealed the pretest and posttest results, with an average score of 60.74 on the pretest and 84.07 on the posttest. According to calculations using the Wilcoxon signed rank test, we obtained a Z value of -8.684 with Asyim. …”
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  8. 12228

    Adsorption of Cobalt(II) Ions from Aqueous Solution onto Activated Carbon Prepared from Hazelnut Shells by Erhan Demirbaş

    Published 2003-12-01
    “…The adsorption capacity (Q 0 ) calculated from the Langmuir isotherm was 13.88 mg Co(II)/g carbon at 303 K employing a pH value of 6 and a particle size of 1.00–1.20 mm. …”
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  9. 12229

    Free Transverse Vibration of Orthotropic Thin Trapezoidal Plate of Parabolically Varying Thickness Subjected to Linear Temperature Distribution by Arun Kumar Gupta, Shanu Sharma

    Published 2014-01-01
    “…Frequency corresponding to the first two modes of vibration is calculated for the orthotropic thin trapezoidal plate having CSCS edges for different values of thermal gradient, taper constant, and aspect ratio. …”
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  10. 12230

    Research of Chamfering Tooth Crest of Spiral Bevel Gear based on Disc Cutter by Wei Wei, Zhang Lianhong

    Published 2018-01-01
    “…Position relationship between gear and disc cutter is determined based on intersecting lines of cylinder sweep volumes,then machining parameters of chamfering are calculated. Simulation environment for chamfering is established including machine,disc cutter and gear,some groups of machining parameters are set to simulate machining process. …”
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  11. 12231

    MBER power allocation for joint precoding and space-time coding GFDM by Jianhui CAI, Guangqiu LI, Yanxu DUAN

    Published 2021-12-01
    “…In order to improve the bit error rate (BER) and bandwidth utilization performance of generalized frequency division multiplexing (GFDM) system over frequency selective fading channels, based on the minimum bit error rate (MBER) criterion, a joint precoding and space-time coding (STC) GFDM system and its corresponding power allocation strategy were proposed.The optimization goal of the power allocation strategy for the precoding STC-GFDM system can be converted from MBER to minimizing its noise enhancement factor, and the analytical expressions of its power allocation, bit error rate (BER) and bandwidth utilization were derived.Numerical calculation and simulation results show that compared with the precoding STC-GFDM system, the BER performance of precoding STC-GFDM system based on MBER criterion can be improved by about 0.4 dB when BER is 10<sup>-3</sup>, and the bandwidth utilization performance can be improved by about 0.24 bit/(s·Hz) when signal to noise ratiois 12 dB.…”
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  12. 12232

    Experimental Study on Quick‐Locking Reinforcement Model for Local Defects in Pipelines in the Rich Water Area by Zhicheng Luo, Xuefeng Yan

    Published 2025-01-01
    “…The results show a close match between the calculated and experimental buckling pressures, with a ratio ranging from 0.87 to 1.15. …”
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  13. 12233

    FRACTURE CRITERION OF THE THEORY OF CRITICAL DISTANCE FOR NOTCHES by LIU XiaoMei, BIAN YongMing, LIANG YongCheng, LI AnHu

    Published 2018-01-01
    “…Whether the brittle fracture criterion of theory of critical distance is suitable for graphite plates with different shape notches was studied by means of analysis of finite element: including tensile specimens with U notches,blunted V-notch specimens of semi-circular bend,three-point bending specimens with single V-notch and compressed specimens of Brazilian disk.According to the theory of critical distance,the parameters of fracture toughness for two graphite materials were calculated by the calibrated characteristic distance and inherent strength and compared with the given values in the literature. …”
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  14. 12234

    A Topology Optimization Method based on Nastran Card Quickly Modifying Parameter by Chu Chaomei, Xi Chengjie, Tang Haichuan, Miao Guo

    Published 2015-01-01
    “…A topology optimization method based on Nastran card quickly modifying parameters is proposed to solve the problem of modifying parameters of the complex components in the process of topology optimization.In the process of the model modification,the load calculation results can be directly imported to the Nastran topology optimization file to replace parameters of the original one. …”
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  15. 12235

    RESEARCH ON DEEP NEURAL NETWORK LEARNING BASED ON IMPROVED BP ALGORITHM by HUANG Pei

    Published 2018-01-01
    “…Deep learning can make the computing model that contains a number of processing layers to learn the data that contains many levels of abstract representation.This kind of learning way in the most advanced speech recognition,visual object recognition,object detection and many other areas,such as biology,genetics and medicine brought significant improvement.Deep learning can find the complex structure of large data,and the convolution neural network as one of the important models of the depth study in the processing of voice,image,video and text,and other aspects of a new breakthrough.It is the use of BP algorithm to guide the machine how to get the error before the layer to adjust the parameters of this layer,so that these parameters are more conducive to the calculation of the model.In view of the shortcomings of traditional BP algorithm,a fast BP algorithm is proposed,which has the disadvantages of slow convergence speed and often falls into local minimum points.The improved convolutional neural network is used to validate the data set MNIST,English character recognition and medical image.The simulation results show the effectiveness of the proposed algorithm.…”
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  16. 12236

    PRINCIPAL-INTERNAL RESONANCE OF AN AXIALLY MOVING THIN PLATE SUBJECTED TO DOUBLE LINE LOADS by XIE MengXue, HU YuDa

    Published 2022-01-01
    “…By using Galerkin method and the method of multiple scales, the amplitude frequency response equation of the system under 1∶3 internal resonance and external excitation combined resonance under double-excitation was derived. By calculation examples, the characteristic curves of the first two resonance amplitudes varying with frequency tuning parameters and external excitation were obtained. …”
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  17. 12237

    Cardiovascular responses of physically active colligate subjects during normal and warm conditions, and determination of sweat rates by Asim Cengız, Bade Tekbas, Bilal Demırhan

    Published 2014-06-01
    “…Sweat rates, and amount of fluid needed to replace water loss during exercise were calculated. Heart rate, body temperature, and RPE increased all the way to the end of the exercise for both conditions but more in warm conditions. …”
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  18. 12238

    RESEARCH ON THE WELD FATIGUE STRENGTH OF FRAME BASED ON MULTI-AXIS THEORY by ZHANG MingYang, ZHANG KaiLin

    Published 2022-01-01
    “…The establishment means of the weld local coordinate system and the calculation method of material utilization are described in detail. …”
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  19. 12239

    New Method of Sensitivity Computation Based on Markov Models with Its Application for Risk Management by Zheng Gu, Yue Liu, Aijun Yang, Kaodui Li

    Published 2022-01-01
    “…Sensitivity analysis is at the core of risk management for financial engineering; to calculate the sensitivity with respect to parameters in models with probability expectation, the most traditional approach applies the finite difference method, whereafter integration by parts formula was developed based on the Brownian environment and applied in sensitivity analysis for better computational efficiency than that of finite difference. …”
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  20. 12240

    An improved method to determine basic probability assignment with interval number and its application in classification by Bowen Qin, Fuyuan Xiao

    Published 2019-01-01
    “…At first, k -means++ clustering method is used to calculate lower and upper bound values of interval number with training data. …”
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