Showing 120,961 - 120,980 results of 124,197 for search '"research"', query time: 0.43s Refine Results
  1. 120961

    Differential fault analysis on EMV application cryptogram by Qian PENG, Zeng-ju LI, Ru-hui SHI

    Published 2016-04-01
    “…The process of application cryptogram in EMV was researched and dummy bits in session key were found.Based on the session key’s dummy bits and compressive property of DES’s Sbox,much information of the application cryptogram master key was got by using safe-error attack.The differential fault attack model and steps to implement the attack were proposed,two key factors(the probability of generating wrong key and the probability of collision happening) affecting an attacking result were analyzed.The theoretical result and simulation of the attack were given.The experiment results show that the two keys could be distinguished in a real attacking when the dif-ference of two key’s collision probability was bigger than 0.003 5.The dummy bits in the key will increase the dif-ference and make distinguishing easier.Finally,several countermeasures against the attack were proposed.…”
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  2. 120962

    2-D honeycomb MI wave communication system by Feng LIU, Zhi-jun ZHANG, Xiao-tong ZHANG, Jin-wu XU

    Published 2014-12-01
    “…To realize the high reliable communication and the wireless power transmission in the wireless underground sensor network,a new type of 2D honeycomb magneto-inductivenetwork was put forward at VLF band.The system model was established,and bandwidth,group velocity and beam forming technologies were researched based on the cur-rent dispersion equations.Simulation with Runge-Kutta method was carried out to verify the efficiency of the network.The result show that the omnidirectional propagation can be realized in the proposed honeycomb network with more bal-anced bandwidth and group velocity in every direction compared with the square lattice structure.Directional communi-cation can also be realized based on the cooperative multi-antenna technology.The proposed honeycomb mag-neto-inductive network is very suitable to build wireless sensor networks with high connectivity and power efficiency in the underground environments.…”
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  3. 120963

    Peran Workplace Well-being terhadap Mental Health: Studi pada Karyawan Disabilitas by F Fridayanti, N Kardinah, Tyas Julianti Nurul Fitri

    Published 2019-12-01
    “…Total participants are 70 employee with disability (30 men and 40 women). The researcher used a workplace well-being Questionaire and General Health Questionare (QHG). …”
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    Article
  4. 120964

    Parameter Optimization of Traffic Cone Recycling Manipulator by Li Yushan, Liu yang, Lü Antao

    Published 2017-01-01
    “…Aiming at a single degree of freedom geared linkage traffic cone recovery manipulator,based on the kinematics analysis,the influence of parameters,likes link size and transmission ratio on the end actuator velocity and trajectory of recovery manipulator is researched. Considering reducing occupation space,main arm rotation angle and peak horizontal acceleration as the optimization targets,the mathematical model is established. …”
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  5. 120965

    La machine à vapeur dans l’aérostation au XIXe siècle by Molveau, Jean

    Published 2024-11-01
    “…Since the advent of balloons in 1783, countless researchers had been thinking, without success, of making airships dirigible. …”
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  6. 120966

    Indoor localization method based on CSI in complex environment by Xiaochao DANG, Xiong SI, Zhanjun HAO, Yaning HUANG, Yili HEI

    Published 2018-12-01
    “…Channel state information can provide more detailed sub-carrier information,which attracts the attention of researchers in indoor localization technology.In view of the shortcomings of the traditional indoor location method in the accuracy and stability of the complex indoor environment,an indoor localization method named ComLoc was proposed which could be applied to complex indoor environment,solved the influence of the multipath effect and noise interference on the positioning precision.The error of CSI signal was discussed,the sensitivity of CSI phase information to indoor environment was analyzed and the idea of trusted carrier link was proposed.By selecting reliable and stable link signal by phase difference,the misjudgment of position could be reduced.Based on many numerous experiments,the phase error of CSI was calibrated,and the characteristics of signal variation were extracted.The experimental results show that ComLoc is effective and efficient in the complex indoor environment.…”
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  7. 120967

    Virtual commander’s operational decision-making model based on thinking simulation by JIA Chenxing, MING Yuewei, GE Chenglong

    Published 2025-02-01
    “…Focusing on the urgent need of joint operational plan simulation experimentation, aiming at the lack of intelligent decision-making ability of command entity in the current joint operations simulation systems, and the difficulty of popularizing the simulation experimentation pattern of man-not-in-loop, this paper researches a joint campaign level simulation intelligence which named virtual commander in the simulation loop to simulate the thinking and behavior of human commander’s operation decision-making. …”
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  8. 120968

    Diamond-Like Carbon Film Deposition Using DC Ion Source with Cold Hollow Cathode by E. F. Shevchenko, V. A. Tarala, M. Yu. Shevchenko, A. A. Titarenko

    Published 2014-01-01
    “…Synthesized films were researched using nanoindentation, Raman, and FTIR spectroscopy methods. …”
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  9. 120969

    Élaboration d’un cadre de référence pour l’étude des stratégies : analyse de l’activité et étude de cas multiples dans deux usines de crabe by Marie-Eve Major, Nicole Vézina

    Published 2011-11-01
    “…The inductively developed framework, based empirically on field data, is a tool that can be used by researchers and ergonomists to identify and classify strategies.…”
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  10. 120970

    Le développement professionnel en évaluation des apprentissages d’enseignants du supérieur by Isabelle Nizet, Josée-Anne Côté, Christelle Lison

    Published 2022-09-01
    “…The general objective of our study is to provide tools to identify traces of professional development among teacher-researchers in different disciplines who are training evaluation in the Evaluating in Authentic Situations course offered online as a credited university training. …”
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  11. 120971

    Inflammatory Bowel Diseases and Irritable Bowel Syndrome: Overlap of Two Nosological Forms or Two Variants of the Same Disease? by A. A. Sheptulin, K. E. Vinogradskaya

    Published 2019-12-01
    “…Current publications on IBD and IBS present different viewpoints on their relationship. Thus, researchers have noted a high incidence of IBD against the background of IBS, frequent persistence of IBS-like symptoms after achieving IBD remission, as well as the possibility of overlapping the diseases. …”
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  12. 120972

    Bulgaria Through the Eyes of Marijan Alkovic and Franjo Horvat Kis by Antoaneta Balcheva

    Published 2024-01-01
    “…A special emphasis is placed on the figure of the traveler, who has gained an ever greater complexity, combining the roles of the writer, publicist, researcher and politician. Original title in Bulgarian: България през очите на Мариян Алкович и Франьо Хорват Киш.…”
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  13. 120973

    « French belongs to no one, French belongs to everyone ». Sur l’attractivité de la littérature médiévale aux États-Unis by Marion Uhlig

    Published 2016-01-01
    “…Two points are essentially at stake: on the one hand, the languages in which Medieval texts are read and taught – either Modern French for both or, respectively, Old French and English – and, on the other hand, the keen interest of researchers and students toward Global Studies and francophone literature that both entertain links with Medieval literature in French.…”
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  14. 120974

    Design of a Machine Learning-Based Platform for Currency Market Prediction: A Fundamental Design Model by Kevin Gordillo-Orjuela, Paulo Alonso Gaona-García, Carlos Enrique Montenegro-Marín

    Published 2025-01-01
    “…However, the development of these models and their deployment within computer platforms is a complex task, given the variety of approaches that each researcher uses based on the training process and therefore by definition of the model, which leads to the consumption of high computing resources for its training, as well as various processes for its deployment. …”
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  15. 120975

    Effects of polylactic acid scaffolds with various orientations and diameters on osteogenesis and angiogenesis by Yun Rong Xu, Dai Yuan Tang, Zhen Ping Xiao, Zai Tian Huang, Heng Rui Zhang, Zi Wen Tang, Fei He

    Published 2025-01-01
    “…Researchers in the field of regenerative medicine have consistently focused on the biomimetic design of engineered bone materials on the basis of the microstructure of natural bone tissue. …”
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  16. 120976

    WEAKLY POSITIVE RH FACTOR, DIAGNOSED FOR THE FIRST TIME IN A WOMAN DURING PREGNANCY (CLINICAL CASE) by Юлия Сергеевна Фролова, Екатерина Владимировна Грищенко, Светлана Ивановна Елгина, Елена Владимировна Рудаева, Кира Борисовна Мозес

    Published 2024-11-01
    “…The weakly positive Rh factor (Du phenotype) was described by physician and researcher Frederick Stratton in 1946 as a new variant of the antigen that reacts weakly with anti-D identifying sera. …”
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  17. 120977

    Practice and application of distributed data quality management system in power enterprise by Yuanning LI, Sen LIU, Shijun ZHANG, Feng CHEN, Zhiying WANG

    Published 2016-04-01
    “…Aiming at the challenges of data quality management that the power enterprise faces,some solutions for distributed data quality management were proposed. After researching the system features of data quality,some foreign and domestic cases of big data were analyzed as reference,and a solution based on Hadoop distributed processing framework was given to solve the performance bottleneck of centralized data quality system. …”
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  18. 120978

    New techniques of intra-satellite communication and ranging/time synchronization for autonomous formation flyer by LI Xue, ZHANG Qi-shan, XU Yong, WANG Ce

    Published 2008-01-01
    “…The technique of intra-satellite communication networking and asynchronous ranging for autonomous forma-tion flyer(AFF) were researched. The hybird FDMA/CDMA mode was developed for AFF communication networking,and precisely ranging & time synchronization was performed by bidirection Asynchronous transfer frame of CCSDS proximity-1 protocol via intra-satallite microwave link in AFF. …”
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  19. 120979

    Distributed Voronoi-Based Self-Redeployment for Coverage Enhancement in a Mobile Directional Sensor Network by Tien-Wen Sung, Chu-Sing Yang

    Published 2013-11-01
    “…Therefore, conditions of directional sensor networks are dissimilar to those of generic wireless sensor networks for researches, especially on the sensing coverage. This study proposed a distributed approach to enhance the overall field coverage by utilizing mobile and direction-rotatable sensors in a directional sensor network. …”
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  20. 120980

    Impact of implicit government guarantee on the credit spread of urban construction investment bonds by Rongda Chen, Han Li, Xuhui Tang, Chenglu Jin, Shuonan Zhang, Xinyu Zhang

    Published 2024-12-01
    “…The UCIB credit spread, which represents the compensation for credit risk, has become a focal point for researchers. However, owing to shortcomings of previous approaches, few scholars have accurately assessed the impact of implicit government guarantees on credit spreads. …”
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