THE OPTIMIZATION OF GRINDING DOSAGE ON GRINDING HARDENING by ZHANG NingJu, ZHAO MeiLin

“…By measuring grinding force during tests,calculating specific grinding energy and heat source intensity from theoretical perspective; by testing vickers hardness and observing the microstructure of specimens from the perspective of the experimental research to study grinding hardening effect. …”
Get full text

An efficient numerical method for 2D elliptic singularly perturbed systems with different magnitude parameters in the diffusion and the convection terms, part Ⅱ by Ram Shiromani, Carmelo Clavero

“…To see in practice the efficiency of the numerical method, we show the numerical results obtained with our algorithm for a test problem, when the cases analyzed in this work are fixed; from those results, the uniform convergence of the numerical algorithm follows, in agreement with the theoretical results.…”
Get full text

Research on Pushing Arm Profile of Pushing System of New Split Type Six-arm Caliper Logging Tool by Tao Ren, Fei Zhang, Bin Feng, Chunlin Zhang, Daolin Tang, Wen Sun

“…The trajectory curves of piston rods in three motion states are obtained， and their motion laws are verified， which provides a theoretical basis for the optimal design and performance improvement of the structure of caliper logging tool.…”
Get full text

Experimental and Numerical Investigation on Dynamic Properties and Human-Induced Vibrations of an Asymmetric Steel-Plated Stress-Ribbon Footbridge by Yi Zhang, Wei He, Jiewen Zhang, Hua Dong

“…Human-induced vibrations were measured considering synchronization cases, including single-person and small group walking as well as random walking cases. A theoretical model that takes into account human-structure interaction was developed, treating the single walking person as an SDOF system with biomechanical excited force. …”
Get full text

Computing Exponential for Iterative Splitting Methods: Algorithms and Applications by Jürgen Geiser

“…Here, the acceleration and recovering of higher-order schemes can be achieved. From a theoretical point of view, iterative splitting methods are at least alternating Picards fix-point iteration schemes. …”
Get full text

Pre-Service Teachers’ Cognitive and Metacognitive Processes in Integrated STEM Modeling Activity by Mehmet Ali Kandemir, Ilyas Karadeniz

“…The problem-solving behavior from the study conducted by Kim et al. (2013) was used as the theoretical framework. First, the behavior is classified as cognitive or metacognitive. …”
Get full text

Pre-service EFL teachers’ competencies for teaching young learners by Hilal Alten, Müge Karakaş

“…Turkish pre-service EFL teachers’ points of view have been evaluated according to the factors and variables in the scale to reveal whether they feel competent enough to teach English to young learners during their teaching practicum and to what extent they implement their theoretical knowledge into classes. Interview questions were addressed to the two of the participants regarding their choices and results of the quantitative data analysis in the next phase of the study. …”
Get full text

Analysis of the Pile-Soil Combined Effect of Micropiles in Strengthening Expansive Soil Landslide in Southern Shaanxi Based on the Dynamic Soil Arch Model by Xiao Ding, Hui He, Yonglong Qu, Yixuan Yang

“…For the swelling soil landslide of the accumulation layer in southern Shaanxi, firstly, a numerical model is established by means of thermal-mechanical coupling of FLAC3D to explore the variation of the soil arch form with different swelling forces. Then, two theoretical models are proposed under normal working condition and rainfall working condition. …”
Get full text

Research on Design and Characteristic of Vibrating Earth Crushing Mechanism of Ligusticum Wallichii Harvester by Yajun Yang, Min Liao, Qiang Zhang, Chao Su

“…This research provides theoretical support for the design of the vibration crushing mechanism of the Ligusticum wallichii harvester.…”
Get full text

Simulation Analysis of Residual Stresses in Spiral Bevel Gear Machining Based on an Oblique Cutting Model by Wang Hao, Zhang Fengshou, Jiang Chuang

“…Through this research, a theoretical reference is provided for the analysis of residual stresses in the cutting of spiral bevel gears.…”
Get full text

Un enseignement littéraire en classe inversée : les dessous d’un contrat by Marie-Sylvie Claude, Patrick Rayou

“…The analysis of this corpus is based by theoretical supports borrowed from the sociology of the teaching profession, from the analysis of activity and from didactics, particularly the didactics of literature. …”
Get full text

800 kV交流隔离开关的机构运动分析及平衡弹簧优化设计 by 孙玉洲, 李付永, 郭海涛, 王巧红, 夏立国, 师丽芳, 刘本学, 柴影辉

“…800 kV AC disconnector is one of the key equipment for extra high voltage（ EHV） substation,and the balance spring is an important component to reduce external load and improve equipment reliability.Aiming at 800 kV EHV disconnector,the mechanism kinematic analysis of main knife mechanism is completed based on the motion diagram,and the theoretical equation of the structural potential energy for disconnector is obtained.Then,the dynamic simulation analysis model of disconnector is established in ADAMS through virtual prototype technology.The difference between the elastic potential energy of the balance spring and the potential energy of the mechanism under the initial design condition is simulated.In order to further narrow the gap between the spring energy and the gravitational potential energy,this paper optimizes the spring system design.The simulation results show that the max-gap change between the optimal balance spring potential energy and the mechanism potential energy is reduced by about 28% than that of the initial.When the disconnector works,the external load required is greatly reduced.…”
Get full text

Necessary and sufficient conditions for the BRI success by Yongjun Chen, Chenglong Guo

“…Abstract This paper presents a general theoretical framework for understanding the Belt‐and‐Road Initiative (BRI). …”
Get full text

Safety Planning: A Vital Preliminary Step for Professionals Working With Intimate Partner Violence Victims by Melis Sedef Kahraman, Kathryn Bell

“…This review will summarize the characteristics of DV situations, explain the theoretical rationale for safety planning, discuss the safety planning process, clarify therapists responsibilities about safety planning and highlight research findings on the effectiveness of safety planning. …”
Get full text

Study on the Meshing Performance of a Spur Gear Pair with Parametric Modification by Shen Xingquan, Zhang Jinchang, Chen Zhenya

“…The optimum modification method and the amount of modification can quickly obtained by the parametric modification of gear which short the R & D cycle and provide an important theoretical reference for practical engineering.…”
Get full text

Free-Form Optimization of Thin-Walled Structure for Frequency Response Problem by Masatoshi Shimoda, Yang Liu

“…A nonparametric shape optimization problem is formulated, and the shape gradient function is theoretically derived using the material derivative method and the adjoint variable method. …”
Get full text

A Methodology for the Identification of Topic Transitions in Interaction by Marine Riou

“…This paper uses a mixed-methods approach that draws on the qualitative-oriented theoretical frameworks of Conversational Analysis and Interactional Linguistics, and combines them with quantitative methods used in other sub-fields of linguistics, such as the coding schemes and inter-rater agreement measures used in Corpus Linguistics. …”
Get full text

Study on Nonlinear Dynamics Characteristic of Two-stage Planetary Gear Train by Xiaolu Leng, Xiaosun Wang, Chongshan Lu, Shijing Wu

“…The nonlinear dynamics characteristic of two-stage planetary system is studied from the perspective of qualitative and quantitative， the influence of chaotic frequency， into the way of chaos and backlash of two-stage planetary system on the nonlinear characteristics of two-stage planetary gear train is obtained. Some theoretical basis for the study of fault mechanism of two-stage planetary gear system is provided.…”
Get full text

Research on Kinematics of Vehicle Vibration Test Benches Based on a 6-UPS Parallel Mechanism by Song Hao, Xu Liyou, Chen Xiaoliang, Zhang Shuai, Zhang Jingquan, Zhao Junfeng, Wang Jie

“…By establishing the simulation model of vehicle vibration test benches, the kinematic simulation analysis of the bench is carried out using Adams software, and the kinematic parameters of the bench are verified theoretically. The results show that the vehicle vibration test bench can move according to the predetermined trajectory, the simulation curve is smooth without mutation, and the designed bench can meet the expected performance indexes, which verifies the rationality of the bench design. …”
Get full text

Low-complexity signal detection algorithm for the power splitting receiver scheme by WANG Yanyan, LI Qidi, TANG Xiaohu

“…Finally, compared to the conventional coherent receiver, the joint processing gain of the splitting receiver scheme was analyzed. Theoretical analysis demonstrates that the proposed signal detection algorithm has lower computational complexity compared to the traditional signal detection schemes based on three-dimensional received signals. …”
Get full text