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SCImago Journal Rank (SJR indicator) is a measure of scientific influence of scholarly journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from.
: Various contributors have uploaded versions of the handbook (sometimes in Spanish or English) for online viewing. Modern Alternatives for Circuit Design
If you are looking for more contemporary components or microcontrollers (like Arduino or Raspberry Pi), these modern textbooks are frequently recommended by the community as superior for today's electronics:
The book is structured into roughly 44 distinct categories, making it a functional "cookbook" for specific electronic needs.
: Offers practical designs for automotive gadgets, battery chargers, and home alarms or sensors.
The is a cornerstone resource for hobbyists, engineers, and DIY enthusiasts. Originally published by G/L Tab Books in 1975, this 602-page manual compiles a vast array of circuit designs that were largely sourced from the archives of 73 Magazine .
: Features AM/FM broadcast receivers, amateur radio accessories, and CW (continuous wave) circuits.
: This is the gold standard for anyone moving from hobbyist to professional engineer, though it is significantly more technical.
While many unofficial sites host "hot" download links, several reputable digital libraries provide free, legal access to the book for education and research:
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Impact factor (IF) is a scientometric factor based on the yearly average number of citations on articles published by a particular journal in the last two years. A journal impact factor is frequently used as a proxy for the relative importance of a journal within its field. Find out more: What is a good impact factor?
Any impact factor or scientometric indicator alone will not give you the full picture of a science journal. There are also other factors such as H-Index, Self-Citation Ratio, SJR, SNIP, etc. Researchers may also consider the practical aspect of a journal such as publication fees, acceptance rate, review speed. (Learn More)
The h-index is an author-level metric that attempts to measure both the productivity and citation impact of the publications of a scientist or scholar. The index is based on the set of the scientist's most cited papers and the number of citations that they have received in other publications