Bundle Pricing Decisions for Fresh Products with Quality Deterioration by Yan Fang, Yiping Jiang, Xingxing Han

“…By adding auxiliary decision variables, this model is converted into a mixed integer linear program. Numerical experiments and sensitive analysis are conducted to provide managerial insights for bundling fresh products with quality deterioration.…”
Get full text

Structural Synthesis and Isomorphism Identification of Multi-DOF AT Planetary Gear Trains by Xue Huanzhang

“…The characters of the links are defined according to each link type of the PGT, and the AT structure is converted into a string. By analyzing the characteristics of the brake links and interconnection links in the planetary gear set string, and using the combination principle to design a reasonable string synthesis algorithm, the isomorphism identification of the PGTs and the AT structures are realized respectively. …”
Get full text

Periodic Solutions for Nonlinear Integro-Differential Systems with Piecewise Constant Argument by Kuo-Shou Chiu

“…In the process we use Green’s function for periodic solutions and convert the given DEPCAG into an equivalent integral equation. …”
Get full text

METHOD OF PROCESSING THE WIND TURBINE TIME HISTORY LOADS BASED ON 6 DEGREES OF FREEDOM by LI JinKu, LIU Wei

“…A method of simply wind turbine time history loads have been studied in the article,it can be converted the time history loads into some number of load duration distribution. …”
Get full text

Maximum Power Point Tracking of PV Grids Using Deep Learning by K. Rafeeq Ahmed, Farrukh Sayeed, K. Logavani, T. J. Catherine, Shimpy Ralhan, Mahesh Singh, R. Thandaiah Prabu, B. Bala Subramanian, Adane Kassa

“…This deep learning model aims to maximise the output power from the solar grids when the panels are connected with the boost converter under different variable load conditions. …”
Get full text

Efficient Convex Optimization of Reentry Trajectory via the Chebyshev Pseudospectral Method by Chun-Mei Yu, Dang-Jun Zhao, Ye Yang

“…The iterative linearization and convexification techniques are proposed to convert the concave constraints into convex constraints; therefore, a sequential convex programming problem can be efficiently solved by convex algorithms. …”
Get full text

Accurate Parameter Estimation for Unbalanced Three-Phase System by Yuan Chen, Hing Cheung So

“…Here, parameter estimation for this system is addressed. After converting the three-phase waveforms into a pair of orthogonal signals via the αβ-transformation, the nonlinear least squares (NLS) estimator is developed for accurately finding the frequency, phase, and voltage parameters. …”
Get full text

Research status of channel estimation and signal detection techniques for orthogonal time frequency space modulation by WANG Yongchuan, ZHOU Ping, HUANG Ju

“…Orthogonal time frequency space (OTFS) modulation is a multiplexing technique designed in the two-dimensional (2D) delay-Doppler domain suited for high Doppler fading channels. OTFS converts a doubly-selective<italic> </italic>channel into an almost non-fading channel in the delay-Doppler domain through a series of 2D transformations. …”
Get full text

Hydrogen Valleys – Energy transition and local development scenarios for medium-sized cities by Alessandra Battisti, Angela Calvano

“…This involves deterritorialisation by decommissioning fossil fuel systems, re-territorialization by converting brownfield sites and constructing a value chain based on climate neutrality. …”
Get full text

Design of Self-Tuning Regulator Adaptive Cascade Control for Power Factor Correction in Boost Rectifier by Chiyo Saito, Connor Davis

“…This study employs a cascade-controlled boost converter for power factor correction, leveraging both voltage and current regulation. …”
Get full text

Twelve-pulse rectifiers in power supply system of urban electric transport aleva by E. Yu. Salita, T. V. Kovaleva

“…The implementation of a twelvepulse serial type rectification scheme can be carried out by industrial development by manufacturers of new dry converter transformers with different typical power and new rectifiers (blocks). …”
Get full text

Robust Beamforming Algorithm for Multibeam Satellite Communication Based on Downlink NOMA by Pengcheng KAN, Zining WANG, Huaicong KONG, Jian OUYANG, Min LIN

“…To improved the spectrum efficiency of multibeam satellite system and meet the requirement of multi-access, a robust beamforming and power allocation scheme based on non-orthogonal multiple access (NOMA) was proposed.Under the condition that the imperfect channel state information was known, fi rstly, a power minimization problem subject to probability constraints of users’ quality of service requirement and earth stations’ interference-to-noise ratio was formulated.In order to address the non-convex problem, we then adopted Bernstein inequality to converted the probability constraints into deterministic forms and decomposed the original problem into beamforming sub-problem and power allocation sub-problem, and the robust design was conducted by alternating optimization.Simulation results showed that the proposed scheme has better robustness and eff ectiveness compared with other existing schemes.…”
Get full text

Single‐stage AC–DC voltage regulator for 15 W wireless charging by X. Bai, Z. Kong, L. Siek

“…This in turn efficiently eliminates the need for a DC–DC converter following the rectifier. Besides, a coupled full‐bridge active rectifier with high speed comparator dramatically reduces the power loss of the circuit. …”
Get full text

On convergence properties of GPD expansion through Mellin/conformal moments and orthogonal polynomials by Hao-Cheng Zhang, Xiangdong Ji

“…., we propose a method to handle the ordering of the multiple summations and convert them into multiple Mellin-Barnes integrals via analytical continuations of integer summation indices.…”
Get full text

Information extraction from massive Web pages based on node property and text content by Hai-yan WANG, Pan CAO

“…To address the problem of extracting valuable information from massive Web pages in big data environments,a novel information extraction method based on node property and text content for massive Web pages was put forward.Web pages were converted into a document object model (DOM) tree,and a pruning and fusion algorithm was introduced to simplify the DOM tree.For each node in the DOM tree,both density property and vision property was defined and Web pages were pretreated based on these property values.A MapReduce framework was employed to realize parallel information extraction from massive Web pages.Simulation and experimental results demonstrate that the proposed extraction method can not only achieve better performance but also have higher scalability compared with other methods.…”
Get full text

Broadband Circular Polarizer Based on Multilayer Gradual Frequency Selective Surfaces by Wei Zhang, Jian-ying Li, Ling Wang

“…The bandwidth of the polarizer reaches 66.7%, from 7.9 to 15.8 GHz, which can convert the incident linear polarization waves into circular polarization waves. …”
Get full text

Distributed Event-Triggered Control of Multiagent Systems with General Linear Dynamics by Xieyan Zhang, Jing Zhang

“…To investigate distributed event-triggering strategies applied to general linear dynamics, we employ a dynamic controller to convert the general linear dynamic to the single-integrator model by a change of variable. …”
Get full text

Passivity Based Control of Doubly Fed Induction Generator Using an Interval Type-2 Fuzzy Logic Controller by Izzeddine Allali, Boubekeur Dehiba

“…The principal objective of this task is to effectively regulate and optimize the flow of both active and reactive power from the generator to the interconnected network to ensure efficient operation and stability, with the rotor signals operated via a bidirectional converter. The proposed control technique is subjected to various conditions to evaluate its performance, including varying wind speeds and parameter adjustments. …”
Get full text

Energy efficient resource allocation scheme for AF relay downlink system by Yu CHEN, Xu-ming FANG, Bo HUANG

“…In order to maximize the total energy efficiency of amplify-and-forward relay downlink system,a joint scheme of relay selection and power allocation was proposed with the circuit power of the system.For reducing the computa-tional complexity,a step-by-step suboptimal allocation scheme was provided.Firstly,the virtual direct channel gains were adopted to select appropriate transmission link.Meanwhile,relay system was converted to the single hop system.Then,the power allocation could be solved by convex optimization.Besides,in order to accommodate different user distribu-tions,a resource allocation scheme based on cell zooming was also proposed.Simulations demonstrated that the solution of the proposed suboptimal scheme approaches the optimal solution.Additionally,the scheme with cell zooming is adaptable to different user distributions and further improves the total system energy efficiency.…”
Get full text

A UV-Method for a Class of Constrained Minimized Problems of Maximum Eigenvalue Functions by Wei Wang, Ming Jin, Shanghua Li, Xinyu Cao

“…In this paper, we apply the UV-algorithm to solve the constrained minimization problem of a maximum eigenvalue function which is the composite function of an affine matrix-valued mapping and its maximum eigenvalue. Here, we convert the constrained problem into its equivalent unconstrained problem by the exact penalty function. …”
Get full text