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Electrical & Power
Sallen-Key Filters: Setting Cutoff Frequency and Quality Factor
Sallen-Key circuits offer a compact way to build active two-pole filters. Component ratios set the response, but the design equations need c...
Second-Order Filters: Sallen-Key Design, Q and Roll-Off Explained
Why second-order active filters roll off at 40 dB per decade, how Sallen-Key networks set Q, and a worked 159 Hz low-pass design.
Butterworth Filters: Flat Passbands, Roll-Off and Implementation Choices
Butterworth filters trade a ripple-free passband for a wider transition band, with analog and digital implementations suited to different de...
Band-Stop Filters: Cutoff Frequencies, RLC Circuits and Notch Applications
Band-stop filters pass frequencies outside a selected range. RLC and Twin-T designs target broad bands or narrow interference such as 50 Hz...
Campaigners Challenge GB Fast-Track Chemical Approvals in High Court
Campaigners say HSE widened fast-track chemical approvals beyond the EU without consultation; a judge will decide if the case goes to judici...
UK Weighs Wobbe Index Limits to Ease LNG Import Costs
DESNZ, HSE and Ofgem are reviewing the UK's Wobbe index range to make LNG imports cheaper, with carbon intensity still a sticking point.
Germany and Japan Bet Fusion Will Be Won in Factories, Not Labs
Proxima Fusion's deals with Fujikura and Kyoto Fusioneering point to a stellarator supply chain taking shape across Germany and Japan.
Sizewell C Cost Overruns Could Add £21.8bn to Public Costs, PAC Warns
A committee warns Sizewell C’s financing could leave consumers carrying most cost overruns, while investors’ losses remain limited.
Aurora Labs Raises $6 Million to Expand Metal Additive Manufacturing and Turbojet Production
Aurora Labs plans to increase turbojet output, buy metal additive manufacturing equipment and prepare its production systems for larger scal...
Cyient Semiconductors Pairs Power ICs With Custom ASICs at electronica 2026
Cyient Semiconductors will show Kinetic power and protection ICs, its custom ASIC flow and 800V roadmap work at electronica 2026 in Munich,...
UK Carbon Capture and Hydrogen Grants Fall by £700m as Acorn Funding Ends
A £500m hydrogen grant reduction and the loss of Acorn’s £200m allocation reshape UK project support, while other cluster funding remains pr...
North Sea Tiebacks Get a Fast Lane Ahead of Transitional Certificate Rules
The UK wants regulators to fast-track North Sea tiebacks before transitional energy certificate legislation passes, alongside a new £2bn Ene...
Europe's PVC Imports Surge as Dumping Probe Targets Four Exporters
PVC imports from Mexico, Taiwan, South Korea and China more than doubled in 2025 to 401 kt, prompting a new EU dumping investigation.
From a Forgotten Micro-PC to a Chicago Office Retro Game Night
A stray micro-PC running Batocera Linux and 2,750 retro games turned into a team game night at DMC's Chicago office.
Jackdaw Approval Splits UK Chemical Engineers Between Security and Emissions
The UK's Jackdaw gas field approval has won cautious support from chemical engineers, who see energy security gains but question the climate...
DMC Teams Trade Desks for Ballparks This Summer
From Wrigley Field to Daikin Park, DMC teams spent the summer at ballgames. Tampa Bay's office is still following a club in the 2026 World S...
Wirepas RF Mesh Reaches 700,000 Smart Meters in Himachal Pradesh's Mountain Terrain
Wirepas says its RF mesh now runs inside 7,02,046 smart meters in Himachal Pradesh, where sparse valley coverage and dense hill towns pose o...
Nine Raspberry Pi Projects for Learning Linux, Python and Networking
Nine Raspberry Pi builds, from a Samba NAS to a Docker host and a sensor-driven robot, with difficulty ratings and time estimates for each.
European SAF Producers Seek Broader Feedstock Options as Imports Supply Most Material
European producers want a dedicated requirement for SAF from waste and residue feedstocks as imports dominate current supply.
Carbon Clean's Compact Capture Unit Wins Innovation Prize at International CCUS Awards
Carbon Clean's CycloneCC, a centrifuge-based capture module about half the size of conventional amine plants, took the innovation award at t...
Young Makers in Hyderabad Combine Computer Vision, Sensors and Moving Hardware
Coolest Projects India showcased 132 projects from 326 young creators, including camera-driven music, motion-tracked therapy and a physical...