De l’usage des traces en sciences de l’information et de la communication by Béatrice Galinon-Mélénec, Julien Péquignot

“…It also clarifies its definition of the trace as a consequence, as well as one of indication, brand and footprint in relation to the trace. Finally, the researcher explains her vision of the research and investigation methods capable of capturing the complexity of reality through the “trace-consequences” that are variously accessible to humans.…”
Get full text

RESEARCH ON PLUG-IN FILLET WELD FLAW DETECTING BY USING FLEXIBLE PHASED ARRAY TECHNIQUE by QIAN ShengJie, HUANG HuanDong, SHEN ChengYe, WANG Du, HUANG Hui, CHEN DingYue

“…The experiment results indicated that this technique can successfully detect the typical flaws of crack, slag and porosity. Finally, the technique was applied to the manufacture quality inspection of the products, one incomplete penetration and one porosity were detected. …”
Get full text

N $$ \mathcal{N} $$ = 2 Orbi-S-Folds by Simone Giacomelli, Raffaele Savelli, Gianluca Zoccarato

“…We draw a precise correspondence between this setup and the torus compactification of six-dimensional orbi-instanton theories with a Stiefel-Whitney twist, and use it to determine the main features of such strongly-coupled systems, like central charges, spectra of Coulomb-branch operators, networks of Higgs-branch flows. Finally, with the aim to improve our understanding of the landscape of N $$ \mathcal{N} $$ = 2 superconformal field theories, and possibly to extend their classification beyond rank two, we provide a detailed catalogue of all the rank-three theories that our framework gives access to.…”
Get full text

Blind joint angle and delay estimation method in uniform circular array by ZHANG Xiao-fei1, XU Da-zhuan1

“…The simulation results reveal that BJADE algorithm has the better estimation performance for delay and DOA, and it works well in the overload system. Finally, this algorithm has blind and robust characteristic, which does not need the channel impulse response.…”
Get full text

Global Existence and Blow-Up of Solutions to a Parabolic Nonlocal Equation Arising in a Theory of Thermal Explosion by Wenyuan Ma, Zhixuan Zhao, Baoqiang Yan

“…Secondly, based on the new method of subsupersolutions, the existence of global solutions and blow-up solutions is presented for different values of p. Finally, the blow-up rate for solutions is estimated also.…”
Get full text

Swords and shields: the war between Candidatus Liberibacter asiaticus and citrus by Yanan Hu, Nannan Lu, Kaiqiang Bao, Shuting Liu, Ruimin Li, Ruimin Li, Ruimin Li, Guiyan Huang, Guiyan Huang, Guiyan Huang

“…Additionally, we focus on the functional research on specific disease-resistant genes in citrus and the molecular mechanisms underlying disease resistance. Finally, we discuss the existing gaps and unresolved questions regarding citrus-CLas interactions, proposing potential solutions to facilitate the development of HLB-resistant citrus varieties.…”
Get full text

Performance Index Based Observer-Type Iterative Learning Control for Consensus Tracking of Uncertain Nonlinear Fractional-Order Multiagent Systems by Liming Wang, Guoshan Zhang

“…A Lyapunov-like method is applied to derive the sufficient conditions in terms of linear matrix inequalities, which can guarantee the perfect tracking of consensus and the monotonic convergence of input errors. Finally, the numerical simulation results including comparisons to traditional two-dimensional analysis are presented to demonstrate the effectiveness of the proposed methods.…”
Get full text

Kinematics Modeling and Analysis of Manipulator based on Dual Quaternion by 葛为民, 宇旭东, 王肖锋, 邢恩宏

“…First,to reduce the computational amount,the general equation of the forward kinematics of the manipulator is presented using dual quaternion.Then,to solve the inverse kinematics problem of the assembled joint variables of manipulator,the sub-problems are classified into two groups of uniaxial and biaxialox,this classification method includes the existing sub-problem classification,which is beneficial to the joint variable grouping solution. Finally,taking a 6 R series manipulator as an example,the forward kinematics and inverse kinematics modeling and simulation analysis based on the dual quaternion are carried out. …”
Get full text

Analisis perilaku kepemimpinan guru Indonesia di era pandemi Covid 19 menggunakan Rasch by Donna Sampaleng, Yuyun Elizabeth Patras, Baharuddin Baharuddin, Rais Hidayat

“…The study began with a theoretical study to obtain content validity, continued with expert validity, readability trials, and finally distributed the instrument via online. Analysis of research data using the Rasch model with 6 tests. …”
Get full text

Frequency analysis of a discrete-time fast nonlinear tracking differentiator algorithm based on isochronic region method by Zhizhou Zhang, Yueliang Pan, Weilong Zhao, Jinchu Zhang, Zheng Zi, Yuan Xie, Hehong Zhang

“…Then, the frequency-domain characteristics of the FNTD were analyzed and the rule for tuning the parameters was provided by the frequency scan test method. Finally, the simulation results demonstrated that the proposed FNTD had fast and accurate tracking performance, as well as excellent filtering and differential extraction capability compared with other differentiators.…”
Get full text

An Embedded Reconfigurable IP Core with Variable Grain Logic Cell Architecture by Motoki Amagasaki, Ryoichi Yamaguchi, Masahiro Koga, Masahiro Iida, Toshinori Sueyoshi

“…The key feature of the VGLC architecture is that the variable granularity is a tradeoff between coarse-grained and fine-grained types required for the implementation arithmetic and random logic, respectively. Finally, we evaluate the proposed logic cell using the newly developed technology mapping tool, which improves logic depth by 31% and reduces the number of configuration data by 55% on average, as compared to the Virtex-4 logic cell architecture.…”
Get full text

Study on construction and identification of dynamic model of precooler in aviation bleed air system by SHI Zhouzheng, DONG Minghao, LIU Qi, LUO Ziyan, WANG Hongbo, QIN Xiansheng, WANG Zhanxi

“…The bleed air from the aircraft engine, serving as the hot-end gas, is pre-cooled through the bleed air system, and subsequently used for cabin temperature regulation and wing anti-freezing. To implement digital intelligent control and enhance the aircraft bleed air system's performance, the identification of dynamic parameters in the system's precooler model is studied. …”
Get full text

Double layers optimal scheduling of distribution networks and photovoltaic charging and storage station cluster based on leader follower game theory by Zixuan Liu, Jun Wu, Ruijin Zhu, Dewen Kong, Hao Guo

“…Secondly, the differential evolution algorithm and GUROBI solver are used to solve for the maximum revenue, internal electricity price, and electricity consumption of PCSSIS and the distribution network. Finally, the effectiveness of the proposed strategy is verified through case studies and simulations.…”
Get full text

Periodic Solution for a Max-Type Fuzzy Difference Equation by Changyou Wang, Jiahui Li

“…In addition, the boundedness and persistence of solutions for the fuzzy difference equation is proved. Finally, the results of this paper are simulated and verified by using MATLAB 2016 software package.…”
Get full text

Fault Diagnosis of Transmission Shaft System of Automobile based on VMD and PSO-SVM by Fei Wu, Jun Ding, Suhang Liu, Xiong Lu

“…Then, the energy value of IMF and the corresponding energy entropy are calculated. Finally, Particle swarm optimization（PSO） is used to optimize the parameters of support vector machine（SVM）, and the energy value and energy entropy of normalized IMF are input into the PSO-SVM to identify the working state and fault type of transmission shaft system. …”
Get full text

PARAMETRIC LEVEL SET METHOD-BASED TOPOLOGY OPTIMIZATION OF HEAT CONDUCTION STRUCTURES by SHEN YaDong, FENG JianHu, CHENG XiaoHan

“…With the problems of complicated calculation process and lower computational efficiency in topology optimization using the traditional level set method（LSM） of heat conduction structures,parametric level set method（PLSM） is introduced into topology optimization for heat conduction structures.The compactly supported radial basis functions（CS-RBFs） are used to interpolate the initial level set function.The interpolation coefficients of CS-RBFs are proposed as the design variables,dissipation of heat transport potential capacity is adopted as the objective function,and the volume of material is used as the constraint.The topology optimization model for heat conduction structures is thus built.Because the method of moving asymptotes（MMA） is used to update the interpolation coefficients of CS-RBFs,the process of topology optimization for structures is transformed into that of updating interpolation coefficients and the optimal topology is finally obtained.Numerical examples show that the optimal results using PLSM are essentially in agreement with those of LSM optimal results,which illustrates the feasibility and validity of the proposed method.…”
Get full text

Alectinib combined with VRCD and BV monoclonal antibody for the treatment of ALK-positive large B-cell lymphoma: a case report and literature review by Hongxia Wang, Junjun Bai, Bei Zhang, Zhixin Pei, Yingxin Zhao, Jingjing Gu, Zhiyu Fang, Miaomiao Liu, Xun Liang, Qinglin Song

“…We report a case of a 53-year-old male patient who was diagnosed with anaplastic lymphoma kinase-positive large B-cell lymphoma. A pathological examination showed plasma-cell immunophenotype negative for mature B-lymphocyte markers. …”
Get full text

A novel class of fourth-order derivative-free iterative methods to obtain multiple zeros and their basins of attraction by Munish Kansal, Vanita Sharma, Litika Rani, Lorentz Jäntschi

“…The basins of attraction of the proposed techniques for various parametric values in the complex plane were showcased to verify the stability and convergence features. Finally, we have included a range of problems like Planck's radiation law, the Van der Waals equation, the trajectory of an electron, and a few academic problems. …”
Get full text

Some Properties of Motion Equations Describing the Nonlinear Dynamical Response of a Multibody System with Flexible Elements by Maria Luminiţa Scutaru, Sorin Vlase

“…For the study on this kind of systems with rigid motion and elastic elements, numerous models have been elaborated, the main idea being the discretization of the elements and the use of finite element method. Finally, second-order differential equations with variable coefficients are obtained; these equations are strong nonlinear ones due to the time-dependent values of angular speed and acceleration, and they can be linearized considering a very short period of time, in which the motion is considered to be “frozen.” …”
Get full text

Research on Scenarios and Modeling of Co-Frequency Interference Between NGSO Communication Constellation Systems by Wei LI, Kang YAN, Jingru GENG, Wen WANG

“…Aiming at the serious problem of frequency overlapping among non-geostationary satellite orbit (NGSO) communication constellation systems.The potential interference scenarios under multiple NGSO communication constellation systems sharing the same spectrum band was comprehensively analyzed, with the aid of analyzing frequency plan of typical constellation systems.Then the possibility of interference risk in each scenario was qualitatively evaluated.According to the characteristics of interference scenarios, the key parameters and models for the co-frequency interference analysis between the NGSO communication constellation systems were discussed, and the computing models of co-frequency interference based on three diff erent protect criterion were presented.Finally, challenges and key research directions of co-frequency interference analysis between NGSO communication constellation systems were pointed out.The research can provide a reference for the study of compatibility and coexistence between broadband Internet constellation systems.…”
Get full text