Increase in Volumetric Electrical Power Density of a Linear Generator by Winding Optimization for Wave Energy Extraction by Selim Molla, Omar Farrok, Abidur Rahman, Md. Samiul Bashir, Md. Rabiul Islam, Abbas Z. Kouzani, M. A. Parvez Mahmud

“…In this article, a method of winding optimization of the linear generator is proposed to increase the electrical power generation from the oceanic wave. …”
Get full text

A Simulation-Based Multiple-Objective Optimization for Designing K-Stacks Autonomous Valet Parking Lots by Chu Zhang, Shaopei Xue, Jiayi Chen, Jun Chen

“…Then, a nondominated sorting based on cumulative advantages (NSCA) method is put forward to select the most robust solution from all candidates, considering different demand scenarios. …”
Get full text

Analyzing the Deformation and Damage Characteristics of Roadway Perimeter Rock and Support Optimization in Yongchang Lead–Zinc Mine by Huiqiong Wang

“…Based on the original support method, four optimized support schemes are proposed to address the asymmetric deformation of the surrounding rock and the apparent bottom bulge of the roadway: (1) anchor spraying net (long and short anchors + locking foot anchors), (2) anchor spraying net + concrete bottom beam, (3) anchor spraying net + unloading groove, and (4) anchor spraying net + antibottom arch. …”
Get full text

Evaluation of connection pool <i>PgBouncer</i> efficiency for optimizing relational database computing resources by A. S. Boronnikov, P. S. Tsyngalev, V. G. Ilyin, T. A. Demenkova

“…The aim of the research is to investigate the possibilities of using the PgBouncer connection pool with various configurations in modern database installations by conducting load testing with diverse real-world like scenarios, identifying critical metrics, obtaining testing results, and interpreting them in the form of graphs.Methods. The research utilized methods of experimentation, induction, testing, and statistical analysis.Results. …”
Get full text

Optimization of fracturing cluster spacing of horizontal wells with natural fractures: taking Jimusar shale oil as an example by HE Xiaodong, ZHANG Jingchen, WANG Junchao, LI Heng, CHEN Xi, GUO Xiaodong

“…In the large-segment and multi-cluster fracturing test, in order to optimize the cluster spacing and increase the fracturing reconstruction volume in the design process of close cutting seams, a set of cluster spacing optimization methods considering natural fractures is established by using the analysis methods of hydraulic fracturing simulation and numerical simulation according to the geological and engineering data of the target block, and the influence of different cluster spacing and different matrix permeability on reconstruction effect and regional exploitation degree is simulated under the close cutting process. …”
Get full text

Optimized Time-domain Feature Extraction for Early Onset Diagnosis of Parkinson Disease From EEG Signals by Delshad Ghavami, Moein Radman, Ali Chaibakhsh

“…The intrinsic mode functions (IMFs) were subsequently derived using the empirical mode decomposition (EMD) technique. The second-order difference plot (SODP) method was applied to each IMF, and components with higher informational content were selected for feature extraction. …”
Get full text

Beyond Granularity: Enhancing Continuous Sign Language Recognition with Granularity-Aware Feature Fusion and Attention Optimization by Yao Du, Taiying Peng, Xiaohui Hu

Get full text

Investigation on Durability Behaviour and Optimization of Concrete with Triple-Admixtures Subjected to Freeze-Thaw Cycles in Salt Solution by Xuejiao Li, Wensheng Wang, Zhiqing Zhu, Kunkun Zheng

“…In this paper, the experimental scheme of mixture proportion for air-entrained concrete with multimineral admixtures was designed based on the orthogonal experiment design method. Based on the compressive strength, rapid chloride permeability, and weight loss and relative dynamic elastic modulus after salt freeze-thaw cycles, the influence of different mineral admixtures and their dosages on the durability of concrete subjected to freeze-thaw in salt solution was analyzed. …”
Get full text

Multi-objective portfolio optimization using real coded genetic algorithm based support vector machines by B. Surja, L. Chin, F. Kusnadi

“…Single optimal portfolios were created using the real coded genetic algorithm based on different sets of objectives: Maximizing short-term and long-term returns, maximizing liquidity, and minimizing risk. …”
Get full text

Downtilt Optimization of Array Antennas Based on Envelope Radiation Patterns for HAPS Service Links With Massive MIMO by Koichi Maki, Koji Tashiro, Tsutomu Ishikawa, Kenji Hoshino

“…The joint optimization problem of downtilt angles can be reduced to individual optimization problems for each circular array, and we demonstrate the downtilt optimization using the gradient descent method. …”
Get full text

Hybrid MPPT control using hybrid pelican optimization algorithm with perturb and observe for PV connected grid by Burhan U. Din Abdullah, Suman Lata Dhar, Shiva Pujan Jaiswal, Muhammad Majid Gulzar, Muhammad Majid Gulzar, Mohammad Alqahtani, Muhammad Khalid, Muhammad Khalid

“…While Artificial Intelligence (AI) and optimization techniques show promise, their implementation complexity and longer attainment times for Maximum Power Point (MPP) hinder widespread adoption.MethodThis paper proposes a hybrid MPPT technique that integrates the Pelican Optimization algorithm (POA) with the Perturb and Observe algorithm (P&amp;O) for a grid-connected photovoltaic system (PV). …”
Get full text

Improved feature reduction framework for sign language recognition using autoencoders and adaptive Grey Wolf Optimization by Rajeev Goel, Sandhya Bansal, Kavita Gupta

Get full text

Optimization of Thermodynamic Properties of R134a Vehicle Air Conditioning System with Internal Heat Exchanger by Yue Zhenyu, Chen Huanxin, Zhong Chang

Get full text

Dynamic Topology Optimization of Constrained Damping Plates considering Frequency and Temperature Characteristics Based on an Efficient Strategy by Fan Wu, Pu Xue

“…In this paper, an efficient strategy of hybrid expansion combined with dynamic reduction is developed to solve the steady-state response of the frequency- and temperature-dependent viscoelastic structure characterized by nonproportional system, and the sensitivity analysis is carried out based on the adjoint variable method. The similarity index is defined to distinguish the correlation among different design layouts. …”
Get full text

Research on Load Adaptive Control for High-Frequency Motion of Voice Coil Motor With Online Parameter Optimization by Feng Huang, Chenxi Wang, Qipeng Li

“…To address this issue, this research proposes an innovative adaptive control method based on online parameter optimization. By enabling the Back Propagation Neural Network (BPNN) to learn the key characteristics of the VCM&#x2019;s driving current under different working conditions, and through continuous iterations during the training process of the network model, real-time online adjustment of controller parameters is achieved, thereby realizing the adaptive control of the VCM. …”
Get full text

Increasing the Yield of Biogas and Electricity during Manure Fermentation Cattle by Optimally Adding Lime to Extruded Straw by Polishchuk V.М., Shvorov S.А., Flonts I.V., Davidenko T.S., Dvornyk Ye.O.

“…The biogas volume was measured using the Krivoruchko method. To carry out the experiment, we used plastic bags (fermenters), a device for sealing the bags, a pH meter, and a calibrated cylinder. …”
Get full text

A Combined Study on Optimization, In Silico Modeling, and Genetic Modification of Large Scale Microbial Cellulase Production by Md. Raisul Islam Rabby, Zabed Bin Ahmed, Gobindo Kumar Paul, Nafisa Nusrat Chowdhury, Fatema Akter, Mamudul Hasan Razu, Pranab Karmaker, Mala Khan

“…In this review, we also compare different cellulase activity determination methods. …”
Get full text

Ecological networks construction and optimization in the Longdong Loess Plateau: The advantages of self-organizing map and complex networks by Xueyu Huang, Lina Xiu, Zhixiang Lu, Jiahui Wang

“…We used this method to identify different types of ecological sources. …”
Get full text

Efficacy of Different Gingival Displacement Materials on the Width of Gingival Sulcus Using Optical Stereomicroscope: A Comparative Analysis by Mahesh K. Rajbanshi, Manish S. Kinra, Rajashekhara B. Sharanesha, Deepti Virupakshappa, Abdullah B. Khojah, Abdulaziz A. Almakenzi, Shahad A. Almakenzi

“…Results: Both retraction methods demonstrated significant differences in gingival displacement before and after retraction (P < 0.001) as per the paired t-test. …”
Get full text

Comparative Analysis: Fractional PID vs. PID Controllers for Robotic Arm Using Genetic Algorithm Optimization by Ahmed Eltayeb, Gamil Ahmed, Imil Hamda Imran, Nezar M. Alyazidi, Ahmed Abubaker

“…The genetic algorithm (GA) optimization method was implemented to tune the gain parameters of the FO-PID and PID controllers. …”
Get full text