Showing 101 - 120 results of 207 for search '"Dynamics (mechanics)"', query time: 0.07s Refine Results
  1. 101

    FINITE ELEMENT ANALYSIS OF CONTACT CHARACTERISTIC OF OVERHEAD CONDUCTOR IN AEOLIAN VIBRATION by ZHAO MeiYun, ZHAO XinZe, FU Zhi Cheng, WANG Lei

    Published 2015-01-01
    “…A finite element model of the contact between conductor strands was built to carry on the simulation on the stress distribution of the conductor in different static pretension and the dynamic mechanics in aeolian vibration. The results show that the contact stress of strands increase with the pretension,and the stress increment is maximal when the pretension increases from 20% T to 25% T. …”
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  2. 102

    Elliptic curve ElGamal encryption based location privacy-preserving scheme by Huibin LAI, Li XU, Yali ZENG, Rui ZHU

    Published 2020-06-01
    “…An elliptic curve ElGamal encryption based location privacy-preserving scheme was proposed to address the location privacy problem of secondary users in collaborative spectrum sensing.Firstly,secondary users encrypted the original sensing reports using the ElGamal public key techniques on the elliptic curve and sent them to the trusted property authority.Secondly,the trusted property authority partially decrypted and randomized sensing reports and then sent the randomized sensing reports to the fusion center.Thirdly,the fusion center finally decrypted and got the original sensing reports.Finally,security of the scheme was analyzed.According to the scheme,the encryption method of sensing reports was based on public key cryptography on elliptic curve.And the trusted property authority randomized encrypted sensing reports.Thus the location privacy of secondary users can be protected.Meanwhile,this scheme effectively reduces communication and storage cost,compared with other schemes.In addition,this scheme also has fault tolerant and dynamic mechanism,which increases the practicability and feasibility.…”
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  3. 103

    Fabrication of self-standing hyperbranched poly(ethyleneimine) film with shape-memory and copper adsorption behavior via simple polymer reaction with tetraazacalix[2]arene[2]triazi... by Tomohiro Suzuki, Ryota Shibata, Tadashi Tsukamoto, Yuji Shibasaki

    Published 2025-04-01
    “…Hyperbranched poly(ethyleneimine) (PEI, Mn 10 kDa) was simply reacted with tetraazacalix[2]arene[2]triazine (ACAT) dichloride in a feed ratio from 1:1 to 1:5 under diluted conditions to produce self-standing PEI modified films with good mechanical strength and thermal properties. In a dynamic mechanical analysis (DMA), the glass transition temperature of the modified polymer was observed from −13.6°C to 35.1 °C, and this value increased with the amount of ACAT modifier. …”
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  4. 104

    Effects of Inorganic Fillers on the Thermal and Mechanical Properties of Poly(lactic acid) by Xingxun Liu, Tongxin Wang, Laurence C. Chow, Mingshu Yang, James W. Mitchell

    Published 2014-01-01
    “…The molecular weight, morphology, mechanical properties, and thermal properties have been characterized by gel permeation chromatography (GPC), scanning electron microscope (SEM), instron tensile tester, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and dynamic mechanical analysis (DMA). It was found that the melting blending led to homogeneous distribution of the inorganic filler within the PLA matrix but decreased the molecular weight of PLA. …”
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  5. 105

    Flexural Properties of PVC/Bamboo Composites under Static and Dynamic-Thermal Conditions: Effects of Composition and Water Absorption by Shahril Anuar Bahari, Warren J. Grigsby, Andreas Krause

    Published 2017-01-01
    “…Analysis revealed that bamboo incorporation improved the PVC composite flexural modulus which was also observed with dynamic mechanical-thermal analysis on heating composites to ca. 70°C. …”
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  6. 106

    Experimental Study on the Damage Characteristics of Polymer Slabs Subjected to Air Contact and Close-In Explosions by Zhidong Liu, Xiaohua Zhao, Hongyuan Fang, Xueming Du, Binghan Xue, Zhaonan Li

    Published 2021-01-01
    “…However, research on its dynamic mechanical properties is relatively rare. In this research, considering the influence of the explosive charge weight, the air contact and close-in explosion experiments of polymer slabs were carried out. …”
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  7. 107

    Mechanical Properties of Membranes of Poly(L-co-DL-lactic acid) with Poly(caprolactone triol) and Study In Vivo by Marcia Adriana Tomaz Duarte, Adriana Cristina Motta, Eliana Aparecida de Rezende Duek

    Published 2014-01-01
    “…The blends were characterized by differential scanning calorimetry, dynamic mechanical analysis, Fourier transform infrared spectroscopy, and tensile strength tests. …”
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  8. 108

    Thermomechanical Impact of Polyurethane Potting on Gun Launched Electronics by A. S. Haynes, J. A. Cordes, J. Krug

    Published 2013-01-01
    “…Researchers at the US Army recently completed a series of dynamic mechanical tests on a urethane-based potting material to assess its behavior in an electronics assembly during gun launch and under varying thermal launch conditions. …”
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  9. 109

    Effect of Filler Loading on Mechanical and Tribological Properties of Wood Apple Shell Reinforced Epoxy Composite by Ojha Shakuntala, Gujjala Raghavendra, Acharya Samir Kumar

    Published 2014-01-01
    “…Also the temperature variation of the dynamic-mechanical parameters of epoxy matrix composites incorporated with 5, 10, 15, and 20 wt% of wood apple shell particles was investigated by DMA test. …”
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  10. 110

    Pathogen stress heightens sensorimotor dimensions in the human collective semantic space by Ze Fu, Huimin Chen, Zhan Liu, Maosong Sun, Zhiyuan Liu, Yanchao Bi

    Published 2025-01-01
    “…These results highlight the universal dynamic mechanisms of collective semantics, such that pathogen stress potentially drives sensorially oriented semantic processing.…”
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  11. 111

    Investigation of the Spatial Clustering Properties of Seismic Time Series: A Comparative Study from Shallow to Intermediate-Depth Earthquakes by Ke Ma, Long Guo, Wangheng Liu

    Published 2018-01-01
    “…Our work aims to suggest a possible statistical approach to explore the dynamic mechanisms implied in the seismicity as well as in other analogous dynamic evolution processes.…”
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  12. 112

    Films from Glyoxal-Crosslinked Spruce Galactoglucomannans Plasticized with Sorbitol by Kirsi S. Mikkonen, Mari I. Heikkilä, Stefan M. Willför, Maija Tenkanen

    Published 2012-01-01
    “…Glyoxal clearly strengthened the GGM matrix, as detected by tensile testing and dynamic mechanical analysis. The elongation at break of films slightly increased, and Young's modulus decreased with increasing sorbitol content. …”
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  13. 113

    IMPACT TEST ON ALUMINUM HONEYCOMB SANDWICH PANELS by XIN YaJun, ZHANG LiWei, LIU XiaoMan, CHENG ShuLiang, LI HuiJian

    Published 2018-01-01
    “…The dynamic mechanical properties of aluminum honeycomb sandwich panels were investigated under low velocity drop weight impact test.The failure behaviors,destruction process and typical force-displacement curves were analyzed.The impact velocities and panel thickness have influence on ultimate impact force and energy absorption was analyzed respectively.The mechanical properties of sandwich panels with corresponding panel thickness under quasi-static test were compared.The tests result show that typical impact load-displacement curve of aluminum honeycomb sandwich panels presents five stages.The ultimate impact force and energy absorption of sandwich panels under different impact velocities are basically identical.With the panel thickness increasing,ultimate impact force and energy absorption of sandwich panels increase.Compared with quasi-static experiment,the ultimate impact force and energy absorption of sandwich panels with three kinds surface thickness under low velocity drop weight impact tests are improved.…”
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  14. 114

    Dynamic Compressive and Tensile Characteristics of a New Type of Ultra-High-Molecular Weight Polyethylene (UHMWPE) and Polyvinyl Alcohol (PVA) Fibers Reinforced Concrete by Bashir H. Osman, Xiao Sun, Zhenghong Tian, Hao Lu, Guilin Jiang

    Published 2019-01-01
    “…The dynamic mechanical properties of concrete materials are important parameters for evaluating the safety performance of concrete structures under dynamic loads. …”
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  15. 115

    A Hybrid Human Dynamics Model on Analyzing Hotspots in Social Networks by Yunpeng Xiao, Bai Wang, Bin Wu, Zhixian Yan, Shousheng Jia, Yanbing Liu

    Published 2012-01-01
    “…Our simulation results are consistent with the empirical studies, which indicate that the model can provide a good understanding of the dynamic mechanism of crowd events using such social networking data. …”
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  16. 116

    Correlation of Polymerization Conditions with Thermal and Mechanical Properties of Polyethylenes Made with Ziegler-Natta Catalysts by M. Anwar Parvez, Mostafizur Rahaman, M. A. Suleiman, J. B. P. Soares, I. A. Hussein

    Published 2014-01-01
    “…The Mw, polymer yield, and catalyst activity are improved with the increase in ethylene pressure. Dynamic mechanical analysis (DMA) results show that the increase in temperature and hydrogen pressure decreases storage modulus. …”
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  17. 117

    Interaction of Indirect and Hyperdirect Pathways on Synchrony and Tremor-Related Oscillation in the Basal Ganglia by Xia Shi, Danwen Du, Yuan Wang

    Published 2021-01-01
    “…Low-frequency oscillatory activity (3-9 Hz) and increased synchrony in the basal ganglia (BG) are recognized to be crucial for Parkinsonian tremor. However, the dynamical mechanism underlying the tremor-related oscillations still remains unknown. …”
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  18. 118

    Microstructure, Tensile Property, and Surface Quality of Glass Fiber-Reinforced Polypropylene Parts Molded by Rapid Heat Cycle Molding by Feng Liu, Taidong Li, Fuyu Xu, Jiquan Li, Shaofei Jiang

    Published 2020-01-01
    “…The microstructure including multilayer, fiber orientation, crystallinity, and fiber-matrix bonding strength were analyzed by simulations, scanning electron microscopy, wide-angle X-ray diffraction, and dynamic mechanical analysis. The relationship between the macroscopic properties and microstructure of the RHCM samples was also discussed. …”
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  19. 119

    Multiscale Analysis of Mechanical Properties and Kinetic Processes in Dry Granular Flow by Ran Xu, Enlong Liu, Jianhe Li

    Published 2024-01-01
    “…This research provides valuable insights into the dynamic mechanisms underlying dry granular flow by considering the intricate interplay between macro- and mesoscales, utilizing complex network-based parameters, and incorporating granular temperature.…”
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  20. 120

    Femtosecond laser induced ultrafast interface dynamics between single layer graphene and quartz substrate: A theoretical study by Runping Zhao, Xia Wang, Lei Wang

    Published 2025-01-01
    “…In this work, a real-time time-dependent density functional theory (rt-TDDFT) method was adopted to study the femtosecond laser induced ultrafast structure evolution and the underlying dynamics mechanism of the interface between a single layer graphene and a Si-terminated quartz substrate. …”
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