MECHANICAL STRUCTURAL RELIABILITY ANALYSIS BASED ON POLYNOMIAL CHAOS EXPANSIONS by WANG ZhiMing, ZHENG Lei, ZHANG LuXi, YUAN Hao, LIU WeiMin

“…And when failure correlation is considered, it is also simple because of avoiding the complex transformation calculation problem.…”
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Modified SIFT Descriptors for Face Recognition under Different Emotions by Nirvair Neeru, Lakhwinder Kaur

“…Second, the computational complexity of SIFT in descriptor calculation is reduced by subtracting average from each descriptor instead of normalization. …”
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Joint recommendation algorithm based on tensor completion and user preference by Zhi XIONG, Kai XU, Lingru CAI, Weihong CAI

“…Aiming at the problem that existing recommendation algorithms have little regard for user preference,and the recommendation result is not satisfactory,a joint recommendation algorithm based on tensor completion and user preference was proposed.First,a user-item-category 3-dimensional tensor was built based on user-item scoring matrix and item-category matrix.Then,the Frank-Wolfe algorithm was used for iterative calculation to fill in the missing data of the tensor.At the same time,a user category preference matrix and a scoring preference matrix were built based on the 3-dimensional tensor.Finally,a joint recommendation algorithm was designed based on the completed tensor and the two preference matrices,and the differential evolution algorithm was used for parameter tuning.The experimental results show that compared with some typical and newly proposed recommendation algorithms,the proposed algorithm is superior to the compare algorithms,the precision is improved by 1.96% ~ 3.44% on average,and the recall rate is improved by 1.35%~2.40% on average.…”
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Entanglement content of kink excitations by Luca Capizzi, Michele Mazzoni

“…We first present detailed calculations for specific states of a spin-1/2 chain to highlight the salient features of these excitations. …”
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The Use of Negative Acceleration as Accessory Force during Lifting by Jordan Trafimow, Alexander S. Aruin

“…Kinematic data were recorded during the lifts and accelerations were calculated, and angular positions of the trunk and knee were obtained during the lifting when negative accelerations were used. …”
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An Application of Product of Intuitionistic Fuzzy Incidence Graphs in Textile Industry by Irfan Nazeer, Tabasam Rashid, Abazar Keikha

“…Some important theorems to calculate the degree of the vertices of IFIGs acquired by CP, composition, tensor product, and normal product are elaborated. …”
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Graphene as a model system for 2D fracture behavior of perfect and defective solids by P. Hess

“…A 2D bond-breaking model is presented that allows the extraction of the intrinsic line or edge energy, fracture toughness, and strain energy release rate of graphene from measured and calculated 2D Young’s moduli and 2D pristine strengths. …”
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Strength on cut edge and ground edge glass beams with the failure analysis method by Stefano Agnetti

“…Determining some physical parameter as the depth of the flaw and the mirror radius of the fracture, after the failure of a glass element, it could be possible to calculate the failure strength of that.The experimental results were analyzed with the LEFM theory and the glass strength was analyzed with a statistical study using two-parameter Weibull distribution fitting quite well the failure stress data. …”
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STRUCTURAL PARAMETER OPTIMIZATION OF LINE CONTACT STEEL STRAND INDUCTION HEATING COIL by CHENG YaPing, LI ZhiGang, ZHANG Qiang

“…The relationship between the size of inner diameter of induction heating coil and induction heating result was analyzed based on the transformer series equivalent circuit model of induction heating coil,the data of induction heating result under different inner diameters were calculated by using finite element model,they were processed by using polynomial fitting method to get the best fit polynomial,the change law of the data was reflected. …”
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GAD:topology-aware time series anomaly detection by Qi QI, Runye SHEN, Jingyu WANG

“…To solve the problems of anomaly detection,intelligent operation,root cause analysis of node equipment in the network,a graph-based gated convolutional codec anomaly detection model was proposed for time series data such as link delay,network throughput,and device memory usage.Considering the real-time requirements of network scenarios and the impact of network topology connections on time series data,the time dimension features of time series were extracted in parallel based on gated convolution and the spatial dependencies were mined through graph convolution.After the encoder composed of the spatio-temporal feature extraction module encoded the original input time series data,the decoder composed of the convolution module was used to reconstruct the time series data.The residuals between the original data and the reconstructed data were further used to calculate the anomaly score and detect anomalies.Experiments on public data and simulation platforms show that the proposed model has higher recognition accuracy than the current time series anomaly detection benchmark algorithm.…”
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RESEARCH ON FATIGUE TEST METHOD OF CAR BODY OF HIGH-SPEED EMU by WANG Chao, LIU ChaoTao, WU PingBo, SONG Ye, LI FanSong, ZHANG FuBing

“…It can also verify the accuracy of the simulation calculation model,and can take into account the incomplete technical considerations in the simulation analysis. …”
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Debris Cloud Material Characterization for Hypervelocity Impacts of Single- and Multimaterial Projectiles on Thin Target Plates by William P. Schonberg

“…This article presents a first-principles based method to calculate: the amount of material in a debris cloud created by a perforating hypervelocity impact that is solid, molten, and vaporous; the debris cloud leading edge, trailing edge, center-of-mass, and expansion velocities; and the angular spread of the debris cloud material. …”
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Fault Diagnosis Method of Gear based on VMD and Multi-feature Fusion by Wang Jianguo, Chen Shuai, Zhang Chao

“…Then,the permutation entropy（ PE） value and energy of the first four modes of high frequency is calculated. Finally,the high- dimensional feature vectors composed of PE and energy are transformed as input of least squares support vector machine（ LS- SVM） to identify gear fault types.The experimental results indicate that VMD can better separate complex multi- components signal from each other,the PE and energy feature can reveal the gear fault information from different scales,the intelligent fault diagnosis method based on VMD and multi- feature fusion can identify the operating conditions of gear accurately and provide reference for the gear fault warning and severity.…”
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Analysis of Stiffness Characteristic of Five-degree-of-freedom Hammer Riveting Robot based on Spiral Theory by Chunying Jiang, Xiangchen Liu, Changlong Ye, Huan Zhou, Xu Guan

“…In view of the characteristics of the 5-DOF hammer riveting robot， combining Lie group Lie algebra and spiral theory， its kinematics model is established and solved； use the exponential product formula to derive the Jacobian matrix of the robot，and use the stiffness mapping theory to solve the stiffness matrix of the robot； the finite element and Matlab simulation software are used to simulate and verify the end deformation under the general pose and the extreme pose，and the stiffness distribution map of the robot in the task space varying with the change of pose is given；the simulation result is compared with the theoretical calculation value and the error is not more than 10%，which verify the correctness and effectiveness of the established stiffness model and provide important reference for optimization of subsequent work path.…”
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OBTAINING NEW THIN WALLED TUBULAR STRUCTURES THROUGH MATRIX MORPHOLOGICAL RESEARCH by VLAD ANDREI CIUBOTARIU, CRINA MARIA RADU, COSMIN GRIGORAȘ, EUGEN HERGHELEGIU

“… New products based on a structure that represents a combination of known elements in a higher quality set, as well as products that refer to new shapes, new curves, new surfaces can be obtained logically - analytically - deductively or by methods specific to the optimal calculation. The present paper focuses on the method of analyzing tridimensional morphology, some possible solutions being evaluated on value criteria. …”
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Research of Adjustable Speed Permanent Magnet Asynchronous Coupler by Shangguan Xuanfeng, Song Weikang, Li Zhengxiu, Jiang Siyuan

“…Firstly,through finite element calculation,the effects of squirrel cage rotor slot parameters on transmission torque and starting torque of squirrel cage permanent magnetic asynchronous couplers and the effects of copper thickness on transmission torque and efficiency of compound solid type permanent magnetic asynchronous couplers are respectively discussed. …”
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Tracking of Gymnast’s Limb Movement Trajectory Based on MEMS Inertial Sensor by Peng Li, Jihe Zhou

“…Based on the two kinds of preprocessed data, the parameters such as sample mean, standard deviation, information entropy, and mean square error are calculated as classification features, the support vector machine (SVM) classification model is established, and the movements of six kinds of gymnastics are effectively recognized. …”
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Service recommendation method based on context-embedded support vector machine by Chenyang ZHAO, Junling WANG

“…Combined with contexts and SVM,a service recommendation method based on context-embedded support vector machine (SRM-CESVM) was proposed.Firstly,according to the different contexts,the user rating matrix was modified to make it with embedded contexts.Secondly,the rating vectors with embedded contexts were used as service feature vectors to construct training set,meanwhile the dimension of service feature vector were not increased by the introduction of contexts.Thirdly,a separation hyperplane for active user was acquired based on training set using SVM,and then the SVM prediction model was built.Finally,the distances between the feature vector points representing the active users' unused services and the hyperplane were calculated.Considering the distances and the recommendation of similar users,the service list was recommended.The experimental results further demonstrate that the proposed method has better recommendation accuracy under different rating matrix densities and can reduce recommendation time.…”
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Economic Feasibility of Anaerobic Digestion To Produce Electricity on Florida Dairy Farms by Russ Giesy, Ann C. Wilkie, Albert De Vries, Roger A. Nordstedt

“…The consultants visited three dairy farms located in Florida in the winter of 2005, calculated wastewater flows (including flushed manure, milking parlor wastewater, and recycled flush water), and determined the size and other necessary aspects of the potential systems specific to each dairy farm. …”
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Influence of pyridinic nitrogen on tautomeric shifts and charge transport in single molecule keto enol equilibria by G. R. Berdiyorov

“…Using density functional theory calculations, we have demonstrated that pyridinic nitrogen in biphenyl molecules with keto-enol tautomerism can successfully make the conductive enol form energetically more favorable. …”
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