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    Some Remarks on Diffusion Distances by Maxim J. Goldberg, Seonja Kim

    Published 2010-01-01
    “…As a diffusion distance, we propose to use a metric (closely related to cosine similarity) which is defined as the 𝐿2 distance between two 𝐿2-normalized vectors. We provide a mathematical explanation as to why the normalization makes diffusion distances more meaningful. …”
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  11. 291

    Brane-vector dark matter and its connection to inflation and primordial gravitational waves by Cao H. Nam, Tran N. Hung

    Published 2024-12-01
    “…The brane-vector can be responsible for dark matter because it is odd under a $$\textrm{Z}_2$$ Z 2 symmetry, neutral under the Standard Model (SM) symmetries, and couples extremely weak to the SM particles due to its gravitational origin. …”
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  12. 292

    Klein–Gordon Oscillator in a Topologically Nontrivial Space-Time by L. C. N. Santos, C. E. Mota, C. C. Barros

    Published 2019-01-01
    “…Solutions for the Klein–Gordon oscillator are found considering two configurations of this space-time. In the first one, the S1×R3 space is assumed where the metric is written in the usual inertial frame of reference. …”
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    Parameter limit and finite element analysis of unequal modulus involute gear pair by JIN ChengKe, HUANG JiaXin, ZHU ChenZe, SUN XiaoXiao, YIN Yue

    Published 2024-06-01
    “…But used in the engineering practice in modulus differ with tooth profile angle are smaller, the formation principle of involute gear tooth surface and the gear meshing analysis of some parameters, got this kind of gear modulus, tooth number, tooth shape parameters such as coefficient of angle, depth of constraints, and through the formula deduction coefficient of the teeth, the tooth depth and the relation between the dividing circle pressure angle limit value. Based on the modeling of engineering practice and the finite element analysis through Ansys, the gear strength designed based on the limit parameters is about 2.66 times of the standard gear, which verifies the feasibility of the theory and expands the application range of this gear pair.…”
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  15. 295

    A Flexible Monopole Antenna with Dual-Notched Band Function for Ultrawideband Applications by Xiaoyan Zhang, Guohao Wang

    Published 2014-01-01
    “…With a combination of rectangular and circle patches in which the U-shaped slot is carved, the overall size of antenna is 30 mm × 20 mm. …”
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  16. 296

    Mechanism Design and Kinematics Analysis of a Hybrid-driven Waist Rehabilitation Robot by Yin Guangcai, Zi Bin, Chen Qiao, Li Yuan

    Published 2016-01-01
    “…A cable-pneumatic-muscle hybrid-driven waist rehabilitation robot is designed for human waist and gait rehabilitation training.The presented data and curves indicate that the state of motion of human torso during normal walking and the rehabilitation robotics fundamental functions are confirmed.According to these,the structure of the rehabilitation robot that employed the double parallel mechanism is designed.The cable- driven parallel mechanism is chosen to drive the human lower limb,and the pneumatic muscle(PM) is chosen to twist the human waist.The adaptability and safety of the rehabilitation robot is enhanced by synthesized the features of the two actuators.The inverse kinematics are solved by using the closed-vector-circle method,and the velocity Jacobian matrix is established.In addition,the rehabilitation robotics kinematics model and the PM element thermodynamics model are established in view of the parameters of different trainers is diverse.Then the kinematics character of cables and PM during the normal walking are obtained through numerical simulation,and the force variation trend of PM elements is also simulated to verify the feasibility of mechanism.…”
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  17. 297

    Tooth Contact Analysis of Discrete Involute Spherical Gear by Gao Xinghua, Liu Yang, Yang Ze, Yang Yitao, Xie Lanqiang

    Published 2017-01-01
    “…By using the ANSYS simulation software,the tooth surface contact characteristic analysis of the discrete involute spherical gear with dividing circle diameter is 512 mm under different meshing states is carried out. …”
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  18. 298

    Este Lais posemos acá” … Sì, ma dove? by Fabio Barberini

    Published 2024-01-01
    “…Pedro, Earl of Barcelos (and his aristocratic circle) was responsible for the insertion of the Lais into the exemplar and the redaction of rubrics.…”
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  19. 299

    La difficile construction de l’identité professionnelle des professeurs-documentalistes de l’enseignement agricole public by Jean-François Marcel, Cécile Gardiès

    Published 2011-03-01
    “…From a theoretical point of view, our analysis leans on two processes contributing to producing professional identities through a common mechanism, the “identity bargaining”. …”
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    ‘What makes you think Theology is a subject?’ by Trevor Williams

    Published 2018-10-01
    “…However, there are ways in which both scientists and theologians, and the two types of Theology, can go wrong. …”
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