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Design and Implementation of universal converter using ANN controller.
Sci Rep
January 2025
School of ECE, Adama Science and Technology University, Adama, Ethiopia.
This paper details the hardware implementation of a Universal Converter controlled by an Artificial Neural Network (ANN), utilizing key components such as six Insulated Gate Bipolar Transistors (IGBTs), two inductors, and two capacitors for energy storage and voltage smoothing. A Digital Signal Processor (DSP) serves as the core controller, processing real-time input and feedback signals, including voltage and current measurements, to dynamically manage five operational modes: rectifier buck, inverter boost, DC-DC buck, DC-DC boost, and AC voltage control. The pre-trained ANN algorithm generates pulse-width modulation (PWM) signals to control the switching of the IGBTs, optimizing timing and duty cycles for efficient operation.
View Article and Find Full Text PDFSkeletal Editing through Cycloaddition and Subsequent Cycloreversion Reactions.
Acc Chem Res
January 2025
Organisch-Chemisches Institut, Universität Münster, Corrensstrasse 40, 48149 Münster, Germany.
ConspectusSkeletal editing, which involves adding, deleting, or substituting single or multiple atoms within ring systems, has emerged as a transformative approach in modern synthetic chemistry. This innovative strategy addresses the ever-present demand for developing new drugs and advanced materials by enabling precise modifications of molecular frameworks without disrupting essential functional complexities. Ideally performed at late stages of synthesis, skeletal editing minimizes the need for the cost- and labor-intensive processes often associated with synthesis, thus accelerating the discovery and optimization of complex molecular architectures.
View Article and Find Full Text PDFDesigning High-Damping, Optically Clear Ionogels through Competitive Binding for Flexible and Impact-Resistant Applications.
ACS Appl Mater Interfaces
January 2025
Department of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
Developing damping materials that are both optically transparent and mechanically robust, while offering broad frequency damping capacity, is a significant challenge─particularly for devices that require protection without compromising visual clarity. Conventional methods often either fail to maintain transparency or involve complex designs that are difficult to implement. Here, we present an ionogel system that integrates a physically cross-linked elastic copolymer network with a viscous ionic liquid.
View Article and Find Full Text PDFIntegrating digital technologies in dental technician education: A comparative study of national examination in Asian countries.
J Dent Sci
January 2025
Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan.
Background/purpose: The integration of digital technologies in dental technician education revolutionized the profession in Asian countries. Despite the growing adoption of digital methods, national examinations predominantly relied on traditional techniques. This study aimed to conduct a comparative analysis of national examination standards and digital course integration in dental technician education among 5 countries including Japan, Taiwan, South Korea, the Philippines, and China.
View Article and Find Full Text PDFFacile preparation of multifunctional biomaterials BTO/Ag and their applications in photoelectrochemical sensing, photodegradation and antibacterial activities.
RSC Adv
January 2025
College of Material Science and Engineering, Key Laboratory of Advanced Materials of Tropical Island Resources, Ministry of Education, Hainan University Haikou 570228 China
With the progress of modern technology and the diversification of societal demands, traditional materials with single properties can no longer meet the requirements of complex and constantly evolving application scenarios. To tackle intricate biomedical applications like disease diagnosis and treatment, scientists are focusing on exploring the design of novel multifunctional biomaterials that possess diverse activities. Bismuth titanate (BiTiO, BTO), which has multifunctionality and great application potential, unfortunately suffers from inadequate photocatalytic performance.
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