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Optimization Design and Experiment of Integrated Planetary Carrier Transplanting Mechanism for Vegetable Seedling
Published 2024-08-01Subjects: Get full text
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An Effective 3D Instance Map Reconstruction Method Based on RGBD Images for Indoor Scene
Published 2025-01-01Subjects: Get full text
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Study on the Structural Design and Obstacle Barrier Performance of Double Pendulum Arms Crawler Deformable Robot
Published 2019-08-01Subjects: Get full text
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RESEARCH ON THE AXIAL CARRYING CAPACITY OF ANGULAR CONTACT BALL BEARINGS BASED ON COMBINED LOADS
Published 2015-01-01Subjects: Get full text
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25
Study and Prediction of Land Use/Cover Change in Small and Medium-Sized River Basins in Typical Urbanization Areas
Published 2022-01-01Subjects: Get full text
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Analysis of Temporal-spatial Characteristics of Coastal Surface Currents in the Lianyungang Based on HFSWR Observations
Published 2021-01-01Subjects: Get full text
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Contact Characteristics Analysis of the Internal Meshing Gear Transmission Pair with Double Contact Points
Published 2023-09-01“…The contact ellipse area of tooth surfaces of the gear pair with double contact points is solved by the numerical analysis method, and the influences of the design and tooth profiles parameters on the contact ellipse are discussed. …”
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Effect of Eyes Open/Closed on Plantar Pressure during Static Balance Evaluation
Published 2021-02-01“…The collected data was processed using the Freestep plantar pressure analysis system. The ball length, ellipse area, average velocity, average X, average Y, ellipse tilt angle, ellipse eccentricity, maximum swing, minimum swing, and total plantar load, forefoot load, and hind foot load of the left and right lower limbs were obtained.Results:There were significant differences in the ellipse area (<italic>P</italic>< 0.05), the average Y(<italic>P</italic>< 0.001) and the maximum swing (<italic>P</italic>< 0.001) of the subjects in the two states of eyes open and closed. …”
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RESEARCH ON EXPANSION GRAPH AND MECHANICAL MODELING OF ANTI-TWIST BRAIDED WIRE ROPE
Published 2017-01-01“…Although the applications of the braided wire rope in electric power grid construction projects are universal,researches of domestic and foreign scholars are less. Based on the ellipse hypothesis and the forming research of the anti-twist braided wire rope,the space expansion graph was obtained by using the four-arcs method in drawing ellipse. …”
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Effect of Yijinjing Training on Balance Function and Plantar Pressure of Stroke Patients
Published 2022-04-01“…Before and after treatment, the Berg balance scale (BBS) was used to evaluate balance function; the plantar pressure analysis system was used to evaluate the plantar pressure parameters under the condition of eyes opened or closed, the percentage of plantar pressure of the hemiplegic side and envelope ellipse parameters (long axis length, short axis length and area) were obtained through the analysis of the system; the adverse reactions such as falls, muscle pain, abnormal blood pressure and heart rate of the two groups were recorded.ResultsThere was no significant difference in BBS score, percentage of plantar pressure on the hemiplegic side and envelope ellipse parameters of the two groups before treatment,the difference was no statistically significant (<italic>P</italic>>0.05). …”
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(t, n) threshold secret sharing scheme without SDC
Published 2006-01-01“…By means of the intractability of ellipse curve discrete logarithm problem(ECDLP),a(t,n) secret sharing threshold scheme based on ellipse curve cryptography was proposed.Generally speaking,there are two kinds of threshold schemes: a threshold scheme with share distribution center(SDC) and a threshold scheme without SDC.Under distrib-uted situation,there is no such a center can be completely trusted by all members of the group,a threshold scheme with-out SDC appears more attractive.In the scheme without SDC all of the members generate the group public key and pri-vate keys.When new numbers join the group secret sharing should be updated by period.An example of the scheme us-ing the small number was given.The security of the scheme was analyzed in the final.…”
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Influence of Load on Friction Moment in Roller Screw
Published 2016-01-01“…The regularity between the load and the half lengths of the major( minor) of the contact ellipse and the sliding friction coefficient values are discussed respectively. …”
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Fall detection via human posture representation and support vector machine
Published 2017-05-01“…First, a human body extracted by a background subtraction technique is located by a minimum area-enclosing ellipse. Then, a normalized directional histogram is developed around the center of the ellipse to represent a human posture by multi-directional statistical analysis. …”
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Planar Monopoles with Different Radiator Shapes for UWB Body-Centric Wireless Communications
Published 2013-01-01“…This paper presents a study on the performances of a group of planar monopoles using radiators of different shapes, such as triangle, rectangle, square, annual ring, circle, horizontal ellipse, vertical ellipse, pentagon, and hexagon, for ultra-wideband (UWB) body-centric wireless communications. …”
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On the coefficient domains of univalent functions
Published 1990-01-01“…Coefficient domains for functions whose derivative has positive real part in the interior of an ellipse are given in this paper.…”
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The optimal grouting area and cable distribution design for guaranteeing roadway stability while considering fluid mechanical effects via the CMOEAD algorithm
Published 2025-01-01“…In combination with the CMOEAD (constrained multi-objective evolution algorithm based on decomposition) optimization method, the optimal grouting area and cable distribution were determined: the center point of the ellipse (grouting area) is (0.01, 1.59), the long axis length is 4.73 m, the short axis length is 4.60 m, and the inclination angle of the ellipse is 53.15°. …”
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Design and Analysis of Power-function-sine Flexure Hinges
Published 2023-07-01“…The results show that the minimum thickness has the greatest influence on the performance of the flexure hinge. In addition, the ellipse and hyperbola are compared with the new hinge. …”
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Polarization Möbius strip at the tight focus of a generalized Poincaré beam
Published 2024-08-01“…We demonstrate both theoretically and numerically that the initial beam has topological charge –1/2 and, in the center of the focal plane, there is a C-point (a point with circular polarization which makes a C-line along the optical axis) with the singularity index of –1/2 (star), whereas the vector of major axis of the polarization ellipse makes along a certain-radius circle around the optical axis a single-side polarization Möbius stripe of the order –3/2, which has three half-turnovers and one stitching, where two opposite major axis vectors of the polarization ellipse meet.…”
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A Semi-analytical Calculation Method for Time-varying Meshing Stiffness and Transmission Error of Spiral Bevel Gear
Published 2019-12-01“…Also the influence of two contact parameters such as contact ellipse axis length and contact path direction on time-varying meshing stiffness and transmission error are analyzed. …”
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