Soft X-Ray Polarimeter: Potential Instrumentation and Observations by Herman L. Marshall, Norbert S. Schulz

“…The intensity variation with position angle is measured to determine three Stokes parameters: I, Q, and U - all as a function of energy. …”
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TRANSMISSION ACCURACY OF SYNCHRONOUS BELT BASED ON RECURDYN by GUO JianHua, MENG QingXin, YU Xin, HU QingMing

“…Using the mechanism of the tooth climbing of the belt,the mathematical model of the transmission error is established,reveals the transmission error of the synchronous belt is a function of the pulley pitch angle.Establish the virtual prototype dynamic transmission simulation model of synchronous belt based on Recur Dyn,through collect data and numerical analysis that mesh point with climbing tooth trace-Archimedes spiral,simulation results are consistent with the experimental results,to verify the accuracy of the simulation analysis.And compare the transmission accuracy of the new profile and L type trapezoidal tooth synchronous belt.The results showed that the transmission error of the new profile synchronous belt（Δθ =0.932mrad） less than L type trapezoidal toothed（Δθ = 1.615mrad）,shows that the capacity anti climbing tooth of the new profile synchronous belt is stronger than L type trapezoidal tooth,the tooth design of new profile synchronous belt is more reasonable.…”
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Subspace Approximations to the Focused Transport Equation of Energetic Particles, I. The Standard Form by B. Klippenstein, A. Shalchi

“…In the past a subspace approximation was proposed which allows to compute important quantities such as the characteristic function as well as certain expectation values. This previous approach was applied to solve the one-dimensional Fokker-Planck equation which contains only a pitch-angle scattering term. …”
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Vibration Optimization of Multi-gear Transmission System based on Mixed-discrete Method by Zhang Lijuan

“…Setting minimal mass and vibration accelerated speed of total components as optimization objective function,the teeth number,module,helical angle as optimization design variable,the gear strength,transmission ratio and contact ratio as constraint condition,the vibration optimization modal of multi-gear transmission system is built. …”
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Design and Application of an Elephant Trunk-like Spiral Deployable Mechanism by Wang Rugui, Jin Cong, Yang Zehui

“…The spiral shape is designed as a whole by dimensional optimization, and the design of the solar wing is used as an example to calculate the dimensional parameters with the maximum unfolding length as the objective function and the spiral range, spacing and rod size as the constraints. …”
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New model for calculation the radius of comet’s nucleus by Mohammed Abd-AL Hamza Mariam, Zaidan Khalaf Salman

“…And the calculation has been made for the phase angle. The relation between luminosity as a function of radius have been found.…”
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Generation and characteristics analysis of the overhand knot using co-screw as gene by Kaiduan Huang, Weifeng Wei, Zhennan Gao

“…The results demonstrate that the co-screw has the feature of winding transfer, while the total angle of co-screw remains constant at 360°. The co-screw provides the overhand knot with one-direction interlocking function. …”
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Study on the Dynamics of 2-GRR(FR)/GRR Parallel Deflection Platform by Xu Yongshuai, Chen Chun, Wang Jiawei, Xu Huiru

“…The analytical equation is obtained by using the bivariate inverse tangent function. Then the force and moment balance equations of each component are established according to the D'Alembert principle. …”
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Trajectory Tracking and Yaw Stability Control for Electric Vehicles Based on LTV-MPC by GAO Zhenfei

“…In this function, the side slip angle of tires is defined as a soft constraint to avoid yawing force saturation. …”
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Dual-robot formation transport in random environment and narrow restricted area via improved DDPG navigation by Liang Tang, Ronggeng Ma, Bowen Chen, Yisen Niu

“…Specifically, the paper first optimizes the reward function module in the DDPG network to incorporate a decision-swapping reward mechanism for training the formation's navigation capability. …”
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Neural Unilateral Nussbaum Gain Sliding Mode Control for Uncertain Ship Course Keeping with an Unknown Control Direction by Guoxin Ma, Dongliang Li, Qiang Wei, Lei Song

“…Considering that the traditional Nussbaum gain method has to consider the complex situation where the gain converges to both positive and negative infinity when proving the stability of a system, a unilateral Nussbaum function is defined in this paper. By constructing this function, the design and proof process of the adaptive Nussbaum gain method are simplified. …”
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Sensitivity Analysis of Effective Parameters in Borehole Failure, Using Neural Network by Somaie Jolfaei, Ali Lakirouhani

“…According to the results, increasing the failure function of the area around the breakout tip causes the breakout to expand, until the failure function is less than 1 for all points around the breakout tip, at which point the breakout expansion is stopped and breakout reaches stability. …”
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Structural Evaluation of the Effect of Bone Quality on the Mechanical Interaction between Dental Implants and Bone by Nazanin Karami, Mehdi Razeghi

“…The role determinant in the success of implant therapy is the function of the geometry and mechanical properties of the implant, jaw and bone-implant joint. …”
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Propuesta para el Cálculo de la Eficiencia en los Engranajes Cilíndricos. // Efficiency calculation proposal for cylindrical gears. by E. Mirabet Lemos, L. Martínez Delgado

“…The paper demonstrates that the efficiency is function of elementary<br />transmission parameters and the used tool. …”
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基于零空间法的基坑开挖既有隧道竖向变形研究 by 郭文杰, 杨文成, 罗文俊, 柴天建, 张海娜, 陈顺满

“…According to the functional relationship, the functional relationship of each part of the system is written, and the total potential energy equation of the system is established. …”
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Characterization of Friction within a Novel 3 mm Wristed Robotic Instrument by Caitlin Ho, Thomas Looi, Glenn Maguire, Dale J. Podolsky

“…An experimental rig was developed to measure friction within the wrist link mechanism when the tool is positioned at various pitch angles. A strong relationship between the cable tension and the tool’s pitch angle was found as a result of friction. …”
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Long Short-Term Memory-Enabled Electromyography-Controlled Adaptive Wearable Robotic Exoskeleton for Upper Arm Rehabilitation by S. M. U. S. Samarakoon, H. M. K. K. M. B. Herath, S. L. P. Yasakethu, Dileepa Fernando, Nuwan Madusanka, Myunggi Yi, Byeong-Il Lee

“…Restoring strength, function, and mobility following an illness, accident, or surgery is the primary goal of upper arm rehabilitation. …”
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Borehole TV Imaging Technology for Horizontal Directional Drilling Based on an Optimization Algorithm for Structural Planes by Dong Yang, Wangsuo Cai, Junchao Wang, Yong Fang

“…Given these challenges, this study develops an optimization algorithm for structural planes: (1) first, information on multiple points in the 2D unfolded view is fitted using a sinusoidal function curve, three arbitrary points are constructed using the fitted curve, and the normal vector of the plane determined by the three points is calculated; (2) the normal vector in the geodetic coordinate system is obtained after two rotations of the spatial coordinate system based on the theory of transformation of Cartesian coordinate system; (3) finally, the dip angle and dip direction of a structural plane are calculated using the normal vector in the geodetic coordinate system. …”
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Smooth Optimised A*-Guided DWA for Mobile Robot Path Planning by Liling Cao, Lei Tang, Shouqi Cao, Qing Sun, Guofeng Zhou

“…Secondly, three sub-functions were introduced into the evaluation function of the DWA algorithm: the distance evaluation between the reference trajectory and the global path, the path direction evaluation, and the dynamic obstacle avoidance evaluation, to enhance the real-time performance of dynamic obstacle avoidance and the consistency of the global path. …”
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A Semianalytical Model for Simulating Fluid Flow in Tight Sandstone Reservoirs with a Bottom Aquifer by Suran Wang, Yuhu Bai, Bingxiang Xu, Ling Chen, Wenlan Li, Yanzun Li

“…The three-dimensional volumetric source function in real space and superposition principle are employed to solve the model analytically for fluid flow in the reservoir. …”
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