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  1. 23641

    Embedding Operators in Vector-Valued Weighted Besov Spaces and Applications by Veli Shakhmurov

    Published 2012-01-01
    “…The embedding theorems in weighted Besov-Lions type spaces 𝐵𝑙,𝑠𝑝,𝑞,𝛾 (Ω;𝐸0,𝐸) in which 𝐸0,𝐸 are two Banach spaces and 𝐸0⊂𝐸 are studied. …”
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  2. 23642

    Determining Appropriate Preservation Conditions for Historical Mixed-Media Objects: a Risk-Based Approach by Willemien Anaf, Marjolijn Debulpaep

    Published 2019-10-01
    “…The methodology is first explained theoretically. Subsequently, its two application aspects are illustrated on the basis of a case study regarding the preventive conservation of a medieval Enclosed Garden.…”
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  3. 23643

    Analysis on Kinematics of 3-PRP Planar Parallel Mechanism by Dong Qianwen, Liu Yongjiang, Li Ruiqin, Jiang Hongjun

    Published 2015-01-01
    “…A kind of 3-DOF planar parallel mechanism which has two translational and one rotational is introduced.Firstly,the position and posture analysis of the parallel mechanism is conducted,its positive and inverse solution equations are established,and then the position positive and inverse solution are solved.Secondly,by using the MATLAB to calculate a group of experimental data,the results can be used to test the correctness of equations.At last,according to the positive and inverse solutions equations,the velocity and acceleration of mechanism input and output are solved.The results show that the structure of 3-PRP mechanism is simple and also can be easy to control and drive,meanwhile,the researching results established a certain theoretical basis for the performance research on the mechanism such as workspace,trajectory planning and optimum design.…”
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  4. 23644

    TORSION PENDULUM DYNAMIC CHARACTERISTICS STUDY OF SCRAPER CHAIN SYSTEM OF SCRAPER CONVEYOR by MAO Jun, WANG Xin, CHEN HongYue, ZHANG Yu

    Published 2018-01-01
    “…In order to investigate torsion pendulum dynamic characteristics of scraper chain system,dynamic model of scraper chain system was established by using finite element method.Numerical simulation was analyzed for dynamic characteristics of scraper chain system by applying pulse load,step load and slope load.Torsion pendulum dynamic characteristics of scraper chain system,dynamic response of chain and dynamic tension transfer characteristic of scraper were researched.The results show that scraper has a big angular displacement at bearing section,and has a big torsion moment.Angular displacement amplitude and torsion moment amplitude gradually reduce from bearing section to the sides.The results provide theoretical basis for dynamic design of scraper conveyor.…”
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  5. 23645

    THE VALIDATION OF VALUES IN ECOLOGICAL ETHICS by Česlovas Kalenda

    Published 1997-01-01
    “…The author suggests that the most theoretically interesting and promising standpoint is defended by A. …”
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  6. 23646

    Higher school infrastructure as an object of management by Yu. V. Kotelevskaya

    Published 2023-12-01
    “…The patterns, providing both positive and negative trends in the development of higher education, are revealed.Among the key factors that require close attention of both theoretical and practical economists are the factors that describe the decline in demand for higher education. …”
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  7. 23647

    Design of multi-key encryption method by Yuqing ZHONG, Hao WANG, Zebing LIN, Min WANG, Liye CHEN

    Published 2020-11-01
    “…In order to improve the security in the process of information transmission,the current encryption methods were studied,and the research status was reported which increased the security of encryption by processing the key.According to the principle of segmenting and grouping data in the process of sending and encrypting,a method of multi-key encryption was designed:the segmenting key group and grouping key group were generated by the source key and random number,and the corresponding key was selected for each segmented and grouped data by its sequence number according to the matching algorithm.This method realized the encryption of multi-key in the process of information transmission.Finally,on the one hand,MATLAB was used to test and verify the encryption efficiency of this method.On the other hand,the security of this method was analyzed from the theoretical and mathematical perspective,comparing with the traditional method.It is concluded that this method can increase the security of the traditional method without too much cost much cost.…”
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  8. 23648

    Multi-body Dynamics Simulation of Timing Belt Drive System for Automotive Engine based on RecurDyn by Zengming Feng, Jinxing Yang

    Published 2020-08-01
    “…Based on the multi-body dynamics software RecurDyn, combined with the layout design parameters of a gasoline engine timing belt drive system, the multi-body dynamics simulation model of the timing belt drive system is established. Through theoretical and simulation calculation, the causes of static contact force error between pulley and timing belt are analyzed, the variation law of tension and transmission error of timing belt is studied, and the response characteristics of meshing frequency and excitation frequency are analyzed through frequency domain analysis. …”
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  9. 23649

    Integrodifferential Equations on Time Scales with Henstock-Kurzweil-Pettis Delta Integrals by Aneta Sikorska-Nowak

    Published 2010-01-01
    “…We prove existence theorems for integro-differential equations 𝑥Δ∫(𝑡)=𝑓(𝑡,𝑥(𝑡),𝑡0𝑘(𝑡,𝑠,𝑥(𝑠))Δ𝑠), 𝑥(0)=𝑥0, 𝑡∈𝐼𝑎=[0,𝑎]∩𝑇, 𝑎∈𝑅+, where 𝑇 denotes a time scale (nonempty closed subset of real numbers 𝑅), and 𝐼𝑎 is a time scale interval. …”
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  10. 23650

    De l’interopérabilité à la réutilisabilité des éditions électroniques by Ioana Galleron, Fatiha Idmhand

    Published 2020-01-01
    “…The paper presents three modalities for finding a balance between the needs and wishes of the editorial team, and those of the wider scholarly public: a preliminary survey, an approach from a theoretical standpoint, or a mix of both. In the last part, the paper reflects on the re-uses of a text from the point of view of John Unsworth’s “scholarly primitives”.…”
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  11. 23651

    Adsorption Studies of Cu from Aqueous/Acidic Solutions on to Bentonite by Artur P. Terzyk

    Published 1999-06-01
    “…They were de-ashed and characterised using low-temperature nitrogen adsorption, porosimetry and Bachmann's method, as well as by different theoretical approaches. Carbon surface properties were characterised by the method of Boehm and the enthalpy of immersion in water. …”
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  12. 23652

    Hide and seek. Aspects of the dynamics of Bible translation by C. Lombaard

    Published 2009-12-01
    “…A proper view of the nature of the Bible text and the theoretical load of exegetical and translation activities must be cultivated among lay translation users, particularly in our age of rising fundamentalisms. …”
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  13. 23653

    English-Assisted Teaching Evaluation System Based on Artificial Intelligence and Rasch Model by Erying Guo, Li Sun

    Published 2022-01-01
    “…Moreover, this paper analyzes the needs of English teaching evaluation and uses the mixed Rasch model in the item reflection theoretical model to study the potential classification problems of teaching. …”
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  14. 23654

    Interference and Protection in Satellite Laser Communication by Chenzhe LAO, Jianfeng SUN

    Published 2023-06-01
    “…In order to explore the safety protection technologies for various external interferences in satellite laser communication, four interference sources in the satellite laser communication link and their principles were introduced, included atmospheric turbulence, space background noise, weak light interference, and strong laser interference.And numerical models commonly used in theoretical analysis of the first two interferences were provided.Weak light interference and strong laser interference, also known as laser active interference, were artificial interference methods.From the scheme of communication, the impact of these four interference sources on coherent and incoherent communication systems was analyzed, and the current mainstream protection technologies for these four interferences under different systems were provided.The characteristics of various protection technologies were compared from versatility, cost, usability and their main application scenarios in satellite laser communication were explained.…”
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  15. 23655

    Study on the Dynamic Safety Sactor Control of Clamping Force of Automotive Continuously Variable Transmission by Zhang Bojun, Wang Qian, Hao Yunzhi

    Published 2015-01-01
    “…Traditional constant safety factor method and novel slip-control method are extreme different methods of clamping force control strategy for continuously variable transmission(CVT).To integrate advantages of both methods,clamping force control strategy base on dynamic safety factor is presented.Analysis of the theoretical clamping force relevant parameters and engine torque wave characteristics is carried out.The safety factor is determined according to engine torque variation trend and range.The calculating process of dynamic safety factor method is described.The simulation and experiment results show that,by adopting dynamic safety factor method,the transmission reliability is ensured.The performances of clamping-force and fuel efficiency are improved.Especially,the clamping force reduced about 20%,the economical efficiency increased about 3%.…”
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  16. 23656

    H∞ Cluster Synchronization for a Class of Neutral Complex Dynamical Networks with Markovian Switching by Xinghua Liu

    Published 2014-01-01
    “…Finally, numerical examples are given to demonstrate the feasibility and effectiveness of the proposed theoretical results.…”
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  17. 23657

    Analysis of International Trade Competitiveness of Small Commodities Based on Numerical Simulation Algorithm by Chunyuan Sun, Qingbo Hu

    Published 2022-01-01
    “…In addition, this study gives the design principle and implementation method of the FIR digital filter, which provides theoretical support for digital signal processing design. …”
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  18. 23658

    Rethinking Technology in a Hyperconnected World: Beyond the Hype of Inter - connectivity by Alina Betlej, Małgorzata Skórzewska - Amberg

    Published 2024-12-01
    “…The focus is on the need to rethink new technologies and the process of hyperconnectivity. The theoretical discussion is embedded in the framework of the chosen philosophical and social approaches. …”
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  19. 23659

    O protagonismo do poder público na condominização residencial da cidade de Alfenas-MG by Lilian Mara de Castro Azevedo, Evânio dos Santos Braquinho

    Published 2021-06-01
    “…In addition to the theoretical reference, interviews were carried out with representatives of municipal public authorities and real estate developers. …”
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  20. 23660

    Design and Analysis of Small Fixed Pedrail Robot with the Variable Guide Wheel Angle by Zhang Lei, Qiu Yafeng

    Published 2015-01-01
    “…The structure improvement design of the traditional fixed pedrail robot is carried out to make the guide wheel angle can be adjusted and the pedrail can be automatic tensioned after adjustment. The theoretical calculation analysis of the obstacle- navigation ability of the pedrail robot is carried out,the change trend of the center of mass is detected by using pro / E modeling,and the optimization of center of mass is carried out. …”
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