Showing 781 - 800 results of 937 for search '"explosives"', query time: 0.06s Refine Results
  1. 781

    Visual Analysis of E-Commerce User Behavior Based on Log Mining by Tingzhong Wang, Nanjie Li, Hailong Wang, Junhong Xian, Jiayi Guo

    Published 2022-01-01
    “…With the continuous development of internet economy and e-commerce, the scale of data produced by users on e-commerce platform is increasing explosively. Mining the behavior of individual users and group users from massive user behavior data and analyzing the value and law behind the data are of great significance to the development of e-commerce. …”
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  2. 782

    Ciudadanía y Sexualidades by Amy Lind, Sofía Argüello Pazmiño

    Published 2009-12-01
    “…Al mismo tiempo, ha habido una virtual explosión de los debates sobre la moral sexual que afectan a una amplia gama de cuestiones relacionadas con las instituciones sociales contemporáneas, tales como la familia, el Estado, la religión, la educación, la medicina, la psicología y la cultura popular. …”
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  3. 783

    Low-carbon ammonia-based fuel for maritime transport by A.A. Levikhin, A.A. Boryaev

    Published 2025-03-01
    “…Requirements for storage tanks for liquid ammonia and its fire-explosive and toxic properties are also given. Calculated equilibrium values ​​of the energy characteristics of fuels based on liquid ammonia are presented, as well as the results of calculations when using ammonia as a working fluid for electric heating and nuclear rocket engines. …”
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  4. 784

    IoT intrusion detection method for unbalanced samples by ANTONG P, Wen CHEN, Lifa WU

    Published 2023-02-01
    “…In recent years, network traffic increases exponentially with the iteration of devices, while more and more attacks are launched against various applications.It is significant to identify and classify attacks at the traffic level.At the same time, with the explosion of Internet of Things (IoT) devices in recent years, attacks on IoT devices are also increasing, causing more and more damages.IoT intrusion detection is able to distinguish attack traffic from such a large volume of traffic, secure IoT devices at the traffic level, and stop the attack activity.In view of low detection accuracy of various attacks and sample imbalance at present, a random forest based intrusion detection method (Resample-RF) was proposed, which consisted of three specific methods: optimal sample selection algorithm, feature merging algorithm based on information entropy, and multi-classification greedy transformation algorithm.Aiming at the problem of unbalanced samples in the IoT environment, an optimal sample selection algorithm was proposed to increase the weight of small samples.Aiming at the low efficiency problem of random forest feature splitting, a feature merging method based on information entropy was proposed to improve the running efficiency.Aiming at the low accuracy problem of random forest multi-classification, a multi-classification greedy transformation method was proposed to further improve the accuracy.The method was evaluated on two public datasets.F1 reaches 0.99 on IoT-23 dataset and 1.0 on Kaggle dataset, both of which have good performance.The experimental results show that the proposed model can effectively identify the attack traffic from the massive traffic, better prevent the attack of hackers on the application, protect the IoT devices, and thus protect the related users.…”
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  5. 785

    Monitoring Volcanic Eruptions with Geographical Information Systems and Remote Sensing Methods: The Case Study of Cumbre Vieja Volcano (Spain) by Özer Akyürek

    Published 2022-07-01
    “…The Land surface temperature analysis, the temperature changes of the region before and after the explosion were examined. As a result of the GIS and UA analyzes, it was determined that various agricultural areas and forest areas, as well as residential areas and the ocean, were also damaged. …”
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  6. 786

    Analysis of the Influence of Groundwater Level Fluctuation on Karst Soil Cave Collapse by Xuejun Chen, Mingming Xue, Yu Song

    Published 2023-01-01
    “…The higher the initial water level, the stronger the negative pressure absorption and positive pressure gas explosion effect on the overburden on the soil cave and the collapse will occur with fewer water level fluctuations. (4) The numerical simulation results are consistent with the laboratory model test. …”
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  7. 787

    Deep Learning-Based English-Chinese Translation Research by Yao Huang, Yi Xin

    Published 2022-01-01
    “…The problems of gradient disappearance and gradient explosion are easy to occur in the recurrent neural network in the long-distance sequence. …”
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  8. 788

    Multi-Objective Dynamic Path Planning with Multi-Agent Deep Reinforcement Learning by Mengxue Tao, Qiang Li, Junxi Yu

    Published 2024-12-01
    “…This model is suitable for complex, unstable task environments characterized by dimensionality explosion and offers scalability. The approach consists of two components: an action evaluation module and an action decision module, utilizing a centralized training with decentralized execution (CTDE) training architecture. …”
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  9. 789

    Efficacy of SG Shield in reducing droplet contamination during collection of oropharyngeal swab culture specimens by Phui-Sze Angie Au-Yong, Xuanxuan Chen, Wen Hao Low, Keen Chong Chau, Stephanie Fook-Chong, Shariq Ali Khan

    Published 2022-09-01
    “…A small latex balloon containing ultraviolet fluorescent dye was placed in the oral cavity of the manikin and inflated until explosion to simulate a cough. Three study groups were tested: (a) control (no shield), (b) face shield and (c) SG Shield. …”
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  10. 790

    Fire Hazards Caused by Equipment Used in Offshore Oil and Gas Operations: Prescriptive vs. Goal-Oriented Legislation by Dejan Brkić

    Published 2025-01-01
    “…Contrary to common belief, the most frequent types of accidents are not those involving a fire/explosion caused by the failure of the Blowout Preventer (BOP) after a well problem has already started. …”
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  11. 791

    Instrumental intelligent platforms for criminal analysis by V. M. Strukov, Y. V. Gnusov, Y. V. Gnusov

    Published 2021-12-01
    “…Such features include: 1) "information explosion", which is intensifying, 2) accelerating the pace of development of modern technologies; 3) the cost of high-tech tools, which is rapidly declining, and such tools become available to ordinary citizens (including criminals). …”
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  12. 792

    Penetrating liver injury caused by a metal fragment from a blast accident in a factory: a case report by Chan Hee Park, Jeong Woo Lee

    Published 2022-08-01
    “…On the day of the accident, there was a metal explosion, and multiple fragments of the metal lodged in the patient’s abdomen. …”
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  13. 793

    Access to Essential Contraception, Family Planning, and Safe Motherhood Services During COVID-19 Pandemic: Single Secondary Level Care Hospital Experience by Jayanta Kumar Biswas, Soumen Das Poddar, Ganesh Saravagi, Ajith Nilakantan

    Published 2022-03-01
    “…Telemedicine can also play a supplementary role in various aspects of women’s health to avoid upcoming population explosion and for better maternal-child health care. …”
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  14. 794
  15. 795

    Study on Energy Dissipation Characteristics and Damage Law of Backfill under Cyclic Impact by Xianglong Li, Qinglian Zhou, Jianguo Wang, Wei Sun, Yongxin Yao, Yongbo Wu, Zhiping Zhang

    Published 2022-01-01
    “…Therefore, it can be concluded that during the two-step pillar recovery, the amount of blasting explosive can be appropriately reduced, and the number of blasting can be increased to reduce the damaging effect of blasting impact on the cemented pillar and reserved pillar to maintain stability.…”
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  16. 796

    Blasting Energy Analysis of the Different Cutting Methods by Ke Man, Xiaoli Liu, Ju Wang, Xiyong Wang

    Published 2018-01-01
    “…Among many factors affecting blasting vibration velocity, besides the explosive quantity, it would also be easily influenced by the cutting way. …”
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  17. 797

    A Multi-Systems Approach to Human Movement after ACL Reconstruction: The Musculoskeletal System by Daniel Larson, Vien Vu, Brandon M Ness, Elizabeth Wellsandt, Scot Morrison

    Published 2021-12-01
    “…This allows for restoration of physical capacities by adequately developing and emphasizing physical qualities beginning with mobility and movement, and progressing to work capacity and neuromuscular re-education, strength, explosive strength, and elastic or reactive strength. …”
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  18. 798

    Application of electric boilers for water apartment heat supply by A. L. Toropov

    Published 2023-09-01
    “…When using electricity tariffs for houses with electric stoves, the total cost of heat supply by electric boilers does not exceed the standards of payment for district heating of multi-storey buildings. Explosions and gas poisoning are excluded.Conclusions. …”
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  19. 799

    Theoretical Calculation and Experimental Analysis on Initial Shock Pressure of Borehole Wall under Axial Decoupled Charge by Xiaoming Lou, Zhenchang Wang, Bigang Chen, Jin Yu

    Published 2018-01-01
    “…For this purpose, Starfield superposition was introduced considering the attenuation and superposition of blasting pressure, and the theoretical solution of initial borehole wall pressure was obtained for the upper and middle air-decked charging structures. Then, the explosive pressure field around the borehole was measured by cement mortar models and a dynamic pressure test system, and the pressures at multiple measuring points were simulated with numerical models established by ANSYS/LS-DYNA. …”
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  20. 800

    Experimental Investigation on the Interfacial Debonding between FRP Sheet and Concrete under Medium Strain Rate by Zihua Zhang, Yunyi Xiao, Ping Zhuge, Xiaocun Zhang

    Published 2019-01-01
    “…In contrast, the interfacial bond performance under dynamic loads, e.g., impact and explosive loading, is still far away from well known, especially taking the strain rate effect into account. …”
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