Research of high strength steels bending by V. A. Tаmila, M. L. Nesterovich

“…The value of compressive stresses acting on bent sample is calculated.…”
Get full text

Symmetry protected topological phases under decoherence by Jong Yeon Lee, Yi-Zhuang You, Cenke Xu

“…We generalize the concept of the strange correlator, initially used to diagnose SPT ground states, to identify anomalies in mixed-state density matrices. Through exact calculations of stabilizer Hamiltonians and field theory evaluations, we show that nontrivial features of SPT states persist in two types of strange correlators: type-I and type-II. …”
Get full text

Stiffness Adjustment Analysis of Continuous Origami Manipulators by Zhang Yuhui, Zhang Fan

“…Firstly, based on the bar-and-hinge model method, the taper angle and length of the three sets of origami robot models are maintained, pressure is applied to the robot arm, the bending stiffness of the manipulator in the state of extension and contraction is analyzed by the Matlab simulation program, and the corresponding bending stiffness ratio is calculated. The results show that when the number of edges of the polygon on the end face of the manipulator is increased from 5 to 7, the bending stiffness ratio increases with the increase of the number of polygon edges, so that the origami manipulator is rigid and flexible in the state of extension. …”
Get full text

DEEP-SEA LANDING VEHICLE SHAPE DRAG ANALYSIS AND BOW MODELED LINE OPTIMIZATION DESIGN (MT) by ZHANG ZiYao, ZHOU Yue, SUN Yu, LAN YanJun, GUO Wei

“…The optimal latin Hypercube method is used to select sample points for the direct navigation resistance calculation, an approximate model of design variable-resistance was established based on the radial basis function neural network, and the optimal design of landing vehicle bow modeled line was carried out by using the adaptive simulated annealing algorithm. …”
Get full text

A New Erosion Model for Wind-Induced Structural Vibrations by Keqin Yan, Yi Zhang, Tao Cheng

“…In the simulating process, the erosion flux is the main controlling factor which can be calculated by the product of erosion coefficient and the differences between the flow stress and threshold stress. …”
Get full text

Study on the Root Crack Propagation Characteristics and Residual Life of Case-hardened Gears by Wu Luji, Yang Shihao, Yang Linjie, Li Youhua

“…According to the bending fatigue test data of an involute case-hardened gear pair, the calculation model is analyzed and verified, and the accuracy of the model is proved. …”
Get full text

Thermodynamics from the S-matrix reloaded, with applications to QCD and the confining Flux Tube by Pietro Baratella, Joan Elias Miró, Emanuele Gendy

“…Abstract Over the past decade and more, S-matrix-based calculational methods have experienced a resurgence, proving to be both an elegant and powerful tool for extracting physical quantities without the need for an underlying Lagrangian formulation. …”
Get full text

Novel Analysis of Fuzzy Fractional Klein-Gordon Model via Semianalytical Method by Mohammad Alshammari, Wael W. Mohammed, Mohammed Yar

“…The series produced result was calculated and compared to the exact result’s recommended equations. …”
Get full text

A Method to Determine Moment Magnitudes of Large Earthquakes Based on the Long‐Period Coda by Xinyu Jiang, Xiaodong Song

“…Tests with both real and synthetic data of 10 globally distributed large earthquakes (Mw > 8) verify the method and the results are stable and reliable even with a fast calculation of synthetics for a 1D model. Tests also show that the method is applicable for earthquakes with Mw above 7.5–8.0 with energy sufficiently greater than the ambient noise. …”
Get full text

Modeling and assessment of new urbanist principles in center neighborhoods in Kashan by Mohsen Shaterian, yones gholami, azam nazari

“…The sample size of 382 was calculated by the formula. To analyze the results of the questionnaire T-test through SPSS software is used for modeling equations using Amos software. …”
Get full text

Virtual machine scheduling model based on Shapley value modified genetic algorithm in cloud computing by Kun MA, Lingyu XU, Xiaoping SHEN, Zhicheng GONG, Jianping LAN, Shuangxi CHEN, Jun QIAN

“…Cloud computing system has the characteristics of large-scale servers and a wide range of users.However, it also consumes a huge number of energy, resulting in high operating costs of cloud providers and high carbon emissions issue.Cloud computing is highly virtualized.How to allocate and manage the virtual resources to ensure efficient physical resource utilization and energy consumption control is a multi-parameter game problem, and it is also a research hotspot in this field.A virtual machine scheduling model and the corresponding SV-GA were proposed, which could calculate the contribution value of the physical machine participating in the work through the Shapley value, and modify the probability parameter of the mutation step in the genetic algorithm through the contribution value, so as to complete the task of virtual machine scheduling.The experimental results show that during the comparison with Max-Min, LrMmt and DE, the SV-GA shows its excellent performance in the multi-parameter game including migration time, times, SLA violation rate and energy consumption in the virtual machine scheduling process.…”
Get full text

Paradoxes in The Approach to Faculty Remuneration in Private Universities by A. R. Alaverdov

“…The paper gives recommendations for changing both the strategy and tactics ofmotivation of private universities faculty based on the implementation of self-financing approach and the calculation of the ratio of teacher’s personal effectiveness.…”
Get full text

Design and Research of an Archimedean Spiral Deformation Wheels by Zhang Enhui, Ren Shichao, Zhao Changrong

“…The deformation wheel mechanism and overall assembly plan were designed by using the SoildWorks software, the parameters were calculated, the data of the deformation wheel was analyzed based on the motion environment and obstacle crossing process, and the process of the deformation wheel climbing continuous steps was optimized. …”
Get full text

Analysis of Deformation Characteristics of Dikes on Deep Soft Soil Foundations by WU Juan, ZHANG Ming, LI Yansong, HOU Weijian

“…The deformation of dikes directly affects the safety of dikes,especially for dikes on deep soft soil foundations,whose deformation is often large,and thus it is often used as the main evaluation index of dike safety.By the reconstruction project of a dike on soft soil foundations,the finite element numerical analysis model for the typical section of the dike is built,and the deformation of the dike during the completion period and under the characteristic water levels is calculated,with emphasis on analyzing the influence of the water level changes and pressure platform on the deformation characteristics of the dike.The results indicate that the dike settlement is severe,and the severe settlement area is mainly concentrated near the center of the surface layer of the dike foundation,and the soft foundation has a significant impact on the dike settlement.The horizontal deformation is relatively small,mainly concentrated in soft foundations,and the horizontal deformation of the dike body is slight.The pressure platform on the waterside slope and the water level changes near a river have a great influence on the horizontal deformation of the dike.On the whole,the dike design scheme is reasonable,and it is suggested to reserve a sufficient settlement amount at the top of the dike.…”
Get full text

Random k conditional nearest neighbor for high-dimensional data by Jiaxuan Lu, Hyukjun Gweon

“…One of the limitations of kNN is that the method may be less effective when data contains many noisy features due to their non-informative influence in calculating distance. Additionally, information derived from nearest neighbors may be less meaningful in high-dimensional data. …”
Get full text

Profile Shaped-configuration of Convex Ellipse Rotor and Its Following High-shape Technology by Xiangjun Yang, Fuchun Sun

“…Firstly， from ellipse coordinate equation of rotor shaped-profile and conjugate principle of rotor pairs and critical conjugate conditions， the optimum axial length ratio of ellipse arc and the maximum shape coefficient of basic rotor are calculated. Secondly， based on the geometric relationship when the endpoint of valley working shaped-profile on driving rotor is just perfect to avoid the peak corner point on driven rotor， the maximum shape factor of raised rotor under a given addendum angle is determined. …”
Get full text

Monte Carlo Simulation of Static and Dynamic Properties of Linear Polymer in a Crowded Environment by Deme Tesfaye Umeta, Solomon Negash Asfaw, Solomon Hailemariam Didu, Chimdessa Gashu Feyisa, Dereje Kenea Feyisa

“…We probed the static properties of the polymer by calculating the mean square of the radius of gyration and the mean square end-to-end distance of the polymer, and we found that the scaling exponents of both the mean square end-to-end distance R2 and the mean square radius of gyration Rg2 as a function of the polymer length N vary with the area fraction of crowding agents, ϕ. …”
Get full text

Teaching Evaluation Algorithm Based on Grey Relational Analysis by Xiaoying Zhang, Xiuying Yang, Jing Yang

“…The data sequence of the drmined data is used as a reference data string, and the data sequence matrix of each influence factor is used as a control data matrix to calculate the correlation between the data sequence and the reference of each factor in the control data matrix. …”
Get full text

Multi-source data security protection of smart grid based on combination key by Jian GAO, Wenbin CHEN, Jianmin PANG, Huadong YU, Guorui SONG

“…As an important infrastructure of power system,power communication network has deployed a large number of widely distributed business terminals and communication terminals,whose data security is related to the safe and stable operation of the entire power network.In order to avoid the situation that the information cannot be safely exchanged due to the shortage of keys.The sharding and combination technology based on keys was proposed to realize the expansion of limited keys,so as to solve the problem of a large number of keys needed for multi-node and mul-ti-service.Firstly,a sharding scheme was obtained according to different conditions.A key was divided into several dif-ferent sub-key pieces,and then a new key was generated by combining these key pieces and distributed to different ter-minals in the system.A large number of combined keys generated were conducive to update key ,which could ensure the data service “one at a time” and effectively enhance the communication system's ability to resist damage and invasion.Through analysis and calculation,the effectiveness of this method in realizing real-time update of a large number of ter-minal business keys with limited keys was further verified,and data secure communication was realized.…”
Get full text

Risk Measurement for Portfolio Credit Risk Based on a Mixed Poisson Model by Rongda Chen, Huanhuan Yu

“…Finally, given the values of coefficients in this model calculated by a nonlinear estimation, Monte Carlo technique simulates the progress of loss occurrence. …”
Get full text