Numerical analysis of repaired wall loss defect pipelines for optimum composite wrap thickness by Muhammed Khaise, Silvio de Barros, Ney Rohem, Maria Banea, Sandip Budhe

“…An optimization of composite thickness for repair of wall loss defect pipeline is also carried out using numerical analysis. A nonlinear explicit FE code with constitutive models for metallic steel and composite material to failure modelling was used. …”
Get full text

Experimental Investigation and Load Capacity of Slender Cold-Formed Lipped Channel Sections with Holes in Compression by Xingyou Yao

“…The axial strength decreased maximum by 20.48% and 22.98% for the member with circular holes and rectangular holes, compared to a member without a web hole. Then, a nonlinear elastoplastic finite element model (FEM) was developed, and the analysis results showed good agreement with the test results. …”
Get full text

Prediction of Gas Chromatography-Mass Spectrometry Retention Times of Pesticide Residues by Chemometrics Methods by Elaheh Konoz, Amir H. M. Sarrafi, Alireza Feizbakhsh, Zahra Dashtbozorgi

“…Results obtained the reliability and good predictability of nonlinear QSRR model to predict the retention time of pesticides.…”
Get full text

A Simple Numerical Model to Estimate the Temperature Distributions Over Photodetectors in Steady-State by Ergun Simsek, Alexander S. Hastings, David A. Tulchinsky, Keith J. Williams, Curtis R. Menyuk

“…Varying the reverse bias voltage while keeping the output current constant by changing the input optical power leads to nonlinear variations in the bandwidth, phase noise, and quantum efficiency. …”
Get full text

Meteorological Data-Based Optimal Control Strategy for Microalgae Cultivation in Open Pond Systems by Riccardo De-Luca, Fabrizio Bezzo, Quentin Béchet, Olivier Bernard

“…Controlling and optimizing such a nonlinear process strongly influenced by weather conditions is therefore tricky, but it is crucial to make this process economically sustainable. …”
Get full text

Green Supply Chain Network Design with Economies of Scale and Environmental Concerns by Dezhi Zhang, Fangzi Zou, Shuangyan Li, Lingyun Zhou

“…The study aims to obtain a rational tradeoff between environmental influence and total cost. A mixed-integer nonlinear programming model is developed to determine the optimal location and size of regional distribution centers (RDCs) and the investment of environmental facilities considering the effects of economies of scale and CO2 emission taxes. …”
Get full text

Shaking Table Test Investigation on Seismic Performance of Joint Model of Immersed Tunnel by Xueming Zhang, Linlin Song, Hongjuan Chen, Shicai Chen, Zhinan Hu, Yong Li

“…The soil around the tunnel was simplified as spring-damper, the tunnel was simplified as beam element, and the joint was simulated by nonlinear spring. The numerical simulation results were in good agreement with the experimental data. …”
Get full text

Fault Feature Extraction and Diagnosis of Gearbox Based on EEMD and Deep Briefs Network by Kai Chen, Xin-Cong Zhou, Jun-Qiang Fang, Peng-fei Zheng, Jun Wang

“…A gear transmission system is a complex nonstationary and nonlinear time-varying coupling system. When faults occur on gear system, it is difficult to extract the fault feature. …”
Get full text

Computational Studies on the Molecule 1-(2-Hydroxyethyl)-5-Fluorouracil in Gas Phase and Aqueous Solution and Prediction of Its Confinement inside Capped Nanotubes by Y. Tadjouteu Assatse, G. W. Ejuh, F. Tchoffo, J. M. B. Ndjaka

“…The large Eg values found suggest a good stability for the studied molecule. The predicted nonlinear optical (NLO) properties of the studied molecule are much greater than those of urea. …”
Get full text

Cumulative Damage Evaluation of RC Bridge Piers subjected to Multiple Earthquakes by Do Hyung Lee, Byeong Hwa Kim, Jung Joong Kim, WooSeok Kim

“…It is thus important that a rigorous seismic analysis of such structures should account for the effect of prior earthquake damage. For this purpose, nonlinear seismic analysis of a reinforced concrete bridge structure has been carried out under both single and multiple earthquake ground motions. …”
Get full text

Digital Modeling of Cone-generated Enveloping Torus Worm by Zhi Liu, Hong Lu, Xin Kuang, Liang Xia

“…The solving algorithm for the complex nonlinear mathematical models is also designed based on the forming principle of the envelope surface， the instantaneous contact line and all meshing point cloud for the tooth profile are calculated， the distribution of contact line of worm tooth profile is also given. …”
Get full text

Experimental evaluation of DC-DC buck converter based on adaptive fuzzy fast terminal synergetic controller by Zahira Anane, Badreddine Babes, Noureddine Hamouda, Omar Fethi Benaouda, Saud Alotaibi, Thabet Alzahrani, Dessalegn Bitew Aeggegn, Sherif S. M. Ghoneim

“…A type-1 fuzzy logic system (T1-FLS) make the considered controller more robust and is utilized to estimate the undefined converter nonlinear dynamics without resorting to the usual linearization and simplifications of the converter model. …”
Get full text

Family of Bistable Attractors Contained in an Unstable Dissipative Switching System Associated to a SNLF by J. L. Echenausía-Monroy, J. H. García-López, R. Jaimes-Reátegui, D. López-Mancilla, G. Huerta-Cuellar

“…This work presents a multiscroll generator system, which addresses the issue by the implementation of 9-level saturated nonlinear function, SNLF, being modified with a new control parameter that acts as a bifurcation parameter. …”
Get full text

Satellite Constellation Orbit Design Optimization with Combined Genetic Algorithm and Semianalytical Approach by Tania Savitri, Youngjoo Kim, Sujang Jo, Hyochoong Bang

“…A global optimization method, Genetic Algorithm (GA), is chosen due to its ability to locate a global optimum solution for nonlinear multiobjective problems. From six orbital elements, five elements (semimajor axis, inclination, argument of perigee, longitude of ascending node, and mean anomaly) are varied as optimization design variables. …”
Get full text

Additive contribution of multiferroic film and semiconductor substrate from nanotube array to resistive switching, topographic features by Shikhgasan Ramazanov, Gaji Gajiev, Daud Selimov, Sadrudin Gadzhimuradov, Sagim Suleymanov, Ştefan Ţălu, Robert S. Matos, Henrique D. da Fonseca Filho

“…Studies of the resistive switching effect showed nonlinear current-voltage characteristics. The negative differential resistance probably arises from the oxide dielectric layer of BFO, thin regions of which participate in the tunneling process. …”
Get full text

A Speed Control Method for Underwater Vehicle under Hydraulic Flexible Traction by Yin Zhao, Ying-kai Xia, Ying Chen, Guo-Hua Xu

“…Sliding mode variable structure control theory for the nonlinear system allows an improved control effect for movements in “sliding mode” when compared with conventional control. …”
Get full text

Harmonic Analysis of Large Grid-Connected PV Systems in Distribution Networks: A Saudi Case Study by Yahya M. Al-Sharif, Gamal M. Sowilam, Tamer A. Kawady

“…Moreover, power electronic devices and nonlinear loads that are used frequently in the industry may exaggerate the harmonic distortions as well. …”
Get full text

Rheological and Structural Properties of Camel Milk/Sweet Potato Starch Gel by A. A. Mohamed, S. Hussain, M. S. Alamri, M. A Ibraheem, Akram A. Abdo Qasem, Omar A. Alhaj, Mohammad A. Alshuniaber

“…Gels exhibited shear thinning according to the nonlinear rheological tests. Camel milk exhibited gel hardness much higher than cow milk. …”
Get full text

Investigation of Lade-Kim Plastic Potential Applicability under Various Stress Paths for Rockfill Materials by Liping Chen, Shihai Bian, Xiaokai Niu, Yongbo Zhao

“…Finally, the Lade-Kim plastic potential, together with nonlinear dilatancy equation, is evaluated by changing the dilatancy equation in the framework of generalized plasticity. …”
Get full text

Exploration of Soliton Solutions to the Special Korteweg–De Vries Equation with a Stability Analysis and Modulation Instability by Abdulrahman Alomair, Abdulaziz S. Al Naim, Ahmet Bekir

“…This work shows that the methods used are simple and fruitful for investigating the results for other nonlinear partial differential models.…”
Get full text