BBC

Food chains and webs

All organisms in an ecosystem depend on each other. Food chains show the flow of energy from one organism to another. Food chains show the feeding relationships between organisms. Food webs show how ...
IEEE

Innovative Design of a Multi-Input, Multi-Output Boost Converter for Smart and Scalable Power Solutions

Abstract: Boost converters enhance input-to-output voltage, two power converters: DC-DC and DC-AC. By quickly turning on and off, switch-mode power supplies (SMPS) increase efficiency and lower energy ...
IEEE

A Family of Class EF Resonant Inverters With Constant AC Voltage Output and Load-Independent Characteristics

Abstract: A family of Class EF resonant inverters with constant ac voltage output and load-independent characteristics is proposed in this article. Moreover, the design principle of Class EF resonant ...
C&EN

Design and Synthesis of Photofluorochromic Coordination Polymers Featuring Dual-Mode Output for Dynamic Anticounterfeiting

Key Laboratory of Polyoxometalate Science of Ministry of Education, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P. R. China ...
C&EN

A Defect-Free Vertical-Cavity GaAs-Based Nanowire Laser on Silicon Emitting at the Telecom O-Band

Walter Schottky Institute, TUM School of Natural Sciences, Technical University of Munich, 85748 Garching, Germany ...