Preparation of Polypropylene Powder by Dissolution-Precipitation Method for Selective Laser Sintering by Liang Fang, Yan Wang, Yang Xu

“…Polypropylene (PP) powder with spherical morphology and suitable particle size for selective laser sintering (SLS) was successfully produced by dissolution-precipitation method. The influence of preparation condition on properties of PP powder was investigated. …”
Get full text

The method of determining internal forces at any cross section of links in mechanisms by Do Sanh, Do Dang Khoa

“… In the paper it is introduced a method of determining internal forces at any cross section of the links of mechanisms. …”
Get full text

A mesh method for solving fourth-order quasilinear elliptic equations by M.M. Karchevsky

“…A mixed finite element method for solving the Dirichlet problem for a fourth-order quasilinear elliptic equation in divergent form was proposed and investigated. …”
Get full text

AN APPROXIMATE METHOD FOR LARGE-SIZE STRUCTURAL PART RELIABLE LIFE PREDICTION by SUN WeiGuang, REN JunGang, HU JieXin, XIE LiYang

Get full text

WIRE: A Weighted Item Removal Method for Unsupervised Rank Aggregation by Leonidas Akritidis, Panayiotis Bozanis

“…The weighted rank aggregation methods consider a more advanced version of the problem by assuming that the input lists are not of equal importance. …”
Get full text

UWB electronic positioning error suppression method based on residual weighting by Lin Yang, Bolong Chen, Zhiwei Cao

“…If the number of remaining nodes is less than 4, the least squares method is used to calculate the position. If the number of remaining nodes is greater than or equal to 4, the NLOS error suppression algorithm based on residual power weighting is used to reduce the positioning error. …”
Get full text

A Minimal Path-Based Method for Computing Multistate Network Reliability by Xiu-Zhen Xu, Yi-Feng Niu, Can He

Get full text

Speaker verification method based on cross-domain attentive feature fusion by Zhen YANG, Tianlang WANG, Haiyan GUO, Tingting WANG

“…Aiming at the problem that the lack of structure information among speech signal sample in the front-end acoustic features of speaker verification system, a speaker verification method based on cross-domain attentive feature fusion was proposed.Firstly, a feature extraction method based on the graph signal processing (GSP) was proposed to extract the structural information of speech signals, each sample point in a speech signal frame was regarded as a graph node to construct the speech graph signal and the graph frequency information of the speech signal was extracted through the graph Fourier transform and filter banks.Then, an attentive feature fusion network with the residual neural network and the squeeze-and- excitation block was proposed to fuse the features in the traditional time-frequency domain and those in the graph frequency domain to promote the speaker verification system performance.Finally, the experiment was carried out on the VoxCeleb, SITW, and CN-Celeb datasets.The experimental results show that the proposed method performs better than the baseline ECAPA-TDNN model in terms of equal error rate (EER) and minimum detection cost function (min-DCF).…”
Get full text

Speaker verification method based on cross-domain attentive feature fusion by Zhen YANG, Tianlang WANG, Haiyan GUO, Tingting WANG

“…Aiming at the problem that the lack of structure information among speech signal sample in the front-end acoustic features of speaker verification system, a speaker verification method based on cross-domain attentive feature fusion was proposed.Firstly, a feature extraction method based on the graph signal processing (GSP) was proposed to extract the structural information of speech signals, each sample point in a speech signal frame was regarded as a graph node to construct the speech graph signal and the graph frequency information of the speech signal was extracted through the graph Fourier transform and filter banks.Then, an attentive feature fusion network with the residual neural network and the squeeze-and- excitation block was proposed to fuse the features in the traditional time-frequency domain and those in the graph frequency domain to promote the speaker verification system performance.Finally, the experiment was carried out on the VoxCeleb, SITW, and CN-Celeb datasets.The experimental results show that the proposed method performs better than the baseline ECAPA-TDNN model in terms of equal error rate (EER) and minimum detection cost function (min-DCF).…”
Get full text

Adversarial example generation method for SAR images based on mask extraction by ZHANG Jianwu, NAI Hao, LI Jie, QIAN Jianhua, FANG Yinfeng

“…The mask extraction module composed of equal modules, this method produced a smaller amount of disturbance, and the structural similarity (SSIM) with the original sample reached that more than 0.997. …”
Get full text

Estimation of energy efficiency of kraft pulp production with the exergy increment method by Р. V. Lukanin

“…In the studied version the exergic efficiency ηe = 80 % is considerably higher than that of the flow chart existing for chemicals recovery which is equal to ηe = 48 %. This is the evidence of high energy efficiency of the method developed.…”
Get full text

The Trimming-Based Design Method for PWR Coolant Flow Distribution Device by Qian Hui, Wenqiang Li, Yan Li, Zhonghui Wang, Hao Li, Xin Guo

“…To solve this problem, a trimming-based design method is proposed in this paper for the complex system and applies it to the design process of the PWR coolant flow distribution device. …”
Get full text

Three-Dimensional Geological Modeling Method Based on Potential Vector Fields by Peigang Liu, Zheng Li, Gang Yu, Zongmin Li

“…In response, an implicit modeling method based on a potential vector field was proposed, which generates geological surface models through the potential vector field method and generalized marching cubes algorithm, and visualizes the modeling results. …”
Get full text

Preparing Nanosilica Particles from Rice Husk Using Precipitation Method by Rusel Zahraw Farhan, Shahlaa Esmail Ebrahim

“…Nanosilica was extracted from rice husk, which was locally collected from the Iraqi mill at Al-Mishikhab district in Najaf Governorate, Iraq. The precipitation method was used to prepared Nanosilica powder from rice husk ash, after treating it thermally at 700°C, followed by dissolving the silica in the alkaline solution and getting a sodium silicate solution. …”
Get full text

AN ASSESSMENT OF THE DISPLACEMENT OF A CAM FOLLOWER USING REGULA FALSI METHOD by KOLAWOLE ADESOLA OLADEJO, DARE ADERIBIGBE ADETAN, ADEKOLA OLAYINKA OKE, RAHAMAN ABU, GANIU AYOOLA LAMID

“…The principal aim of this work was to study and analyse the displacement of a cam-follower with Regula Falsi method and verify its input by using MATLAB and FORTRAN simulations. …”
Get full text

A distance measurement method based on binocular vision for underwater target by Yang Ge, Wang Zhenyao

Get full text

Delving into Android Malware Families with a Novel Neural Projection Method by Rafael Vega Vega, Héctor Quintián, Carlos Cambra, Nuño Basurto, Álvaro Herrero, José Luis Calvo-Rolle

“…More precisely, a novel unsupervised neural-projection method for dimensionality-reduction, namely, Beta Hebbian Learning (BHL), is applied to visually analyze such malware. …”
Get full text

Splitting Matching Pursuit Method for Reconstructing Sparse Signal in Compressed Sensing by Liu Jing, Han ChongZhao, Yao XiangHua, Lian Feng

“…The proposed method selects Fl  (Fl>2K) largest components of the correlation vector c, which are divided into F split sets with equal length l. …”
Get full text

Evaluation method of shale reservoir fracability based on double sweet spots by SHI Can, LIN Botao, XIE Bobo, PAN Yuting, ZHANG Jiahao

“…By selecting the geological and engineering parameters of 10 shale gas wells in the Weiyuan block of the Sichuan Basin, GSI, ESI, and FI are calculated using the established method. It is observed that FI has a positive correlation with the actual testing well gas production with an equal proportion for different wells. …”
Get full text

Determining the Dynamic Settlement of the Foundation Adjacent to Slope Using Analytical Method by Mohammad Javad Shabani, Ali Ghanbari

Get full text