Chinese Science Bulletin

This research aimed to analyze porosity based on observations using FE-SEM, crystal index, crystal size based on XRD observations, and functional groups based on FT-IR observations of coconut dreg cells due to variations in the length of pulsed electric fields (PEF) contact. Research has been done using a completely randomized design approach, and the data was analyzed using R Studio. Coconut dreg is a waste product from processing coconut into coconut milk, which is produced quite a lot, especially in West Sumatra Province, Indonesia. PEF is a non-thermal physical treatment with relatively lo

Manufacturing assembly selection are challenging due to numerous joining process and physical and economic factors, often relying on experienced engineers and limited processes. So, the purpose of this study is to present a case study on the topic of the se-lection of joining process.” Using a program programmed via Visual Basic Access, which consists of two stages, it chooses the type of joining operation from among many proposed operations for a specific purpose and under specific conditions. get up the first stage involves excluding processes that are not fully compatible with the require

This paper proposes an integrated approach using the Nearest Neighbor Heuristic (NNH), historical delivery data analysis, and Multi-Criteria Decision Making (MCDM) with Analytic Hierarchy Process (AHP) and Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) within a Genetic Algorithm (GA) to optimize routes for middle-mile delivery (MMD) in the Closed-Open Mixed Vehicle Routing Problem (COMVRP). By leveraging delivery history and managerial input, this method facilitates optimal route generation, aiding logistics planning and decision-making. Focused on middle-mile distr

This paper implements a novel Simplified Optimum Intelligent PID controller for servo permanent magnet synchronous motor (SPMSM). An algorithm is proposed to solve the optimization problem of controller parameters in the design of a permanent magnet synchronous motor servo system. The proposed method updates the Simplified optimum intelligent PID (SOI-PID) controller gains in an online manner to drive the SPMSM with better speed response during variable load and parameter uncertainty occurrence. A comparative analysis in real-time implementation of the SPMSM with SOI-PID and interval type-2 fu

Passive Islanding Detection Techniques (PIDT) are renowned for their simplicity, absence of power quality degradation, and cost-effectiveness in implementation. However, these techniques are not without challenges, notably in the form of threshold setting limitations and a considerable non-detection zone (NDZ). To address these limitations, this research paper introduces a novel machine learning-based islanding detection technique proficient of detecting islanding events even with zero NDZ and without encountering threshold limitations. The study involves an in-depth analysis of the sensitivit