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...|page=339}}</ref> The ''Schlüsselgerät'' 39 was abandoned by German forces in favour of the [[Schlüsselgerät 41|''Schlüsselgerät'' 41]]. ...with periods 21,23 and 25. The figures were distributed among N1 N2 and N2 in possibly two different configurations. ...

...945.jpg|thumb|right|Fritz Menzer in his military uniform at the end of the war]] ...ehr]], the military intelligence service of the Wehrmacht. He was involved in the development and production of cryptographic devices and procedures, as ...

...uthor2=Vincent Bazi|name-list-style=amp |title= Infrastructure Investments in an Age of Austerity : The Pension and Sovereign Funds Perspective|url= http ...ays, railroads) as well as for the new age ([[high speed rail]], airports, telecommunications, internet...). ...

...c4856#page-17 |title=RFC 4856 – Media Type Registration of Payload Formats in the RTP Profile for Audio and Video Conferences – Registration of Media Typ ...e=1997 |publisher=Erlbaum |isbn=978-0-8058-2557-2 |edition=Revised |series=Telecommunications |location=Mahwah, NJ |pages=50 |language=en}}</ref><ref>{{Cite web |last=Le ...

{{Short description|Concept in electrical and audio engineering}} ...m is applied in a number of different fields, most often being encountered in respect of: ...

...ork on the theory of [[dielectrics]]. Scaife founded the Dielectrics Group in [[Trinity College Dublin]] where he is Fellow Emeritus and formerly Profess ...agnetic materials. The work was published prior to the work of Robert Cole in 1965 which is often cited. ...

...e filters is around 11&nbsp;[[gigahertz]] (GHz). This circuit is described in the box below.]] ...ent the signal from travelling towards the power source. The rows of holes in some tracks, called [[via fence]]s, are not filtering structures but form p ...

| [[World War II#War breaks out in Europe (1939–40)|War breaks out in Europe]]. | Two long messages in [[Cryptanalysis#Depth|depth]] yielded 3700 characters of [[Key (cryptograph ...

...ite NASA art-iif.jpg|thumb|Artist's conception of GPS Block II-F satellite in orbit]] ...s. Errors depend on geometric dilution of precision and the sources listed in the table below. ...

===Cold War era=== In the early days of the [[Cold War]], the U.S. and its allies developed an elaborate series of export control ...

...w [[insertion loss|loss]]. Examples of [[microwave filter]] use are found in [[satellite communications]], [[telephone network]]s, and [[television broa ...und civilian applications such as use in [[microwave link]]s. Much of post-war development was concerned with reducing the bulk and weight of these filter ...

...in electronics|linear filters in general|Linear filter|electronic filters in general|Electronic filter}} {{Short description|Filter used in signal processing on continuous-time signals}} ...

...s]] of the [[Wehrmacht|German Armed Forces]] before and during [[World War II]]. [[Oberkommando der Wehrmacht|OKW]]/Chi, within the formal order of battl ...teilung'' ("cipher department") is, contrary to what one might expect, not in reference to the Greek letter Chi, nor anything to do with the [[chi-square ...

{{Short description|List of definitions of terms and concepts used in electrical engineering and electronics}} ...eering]] and [[electronics engineering]]. For terms related to engineering in general, see [[Glossary of engineering]]. ...

{{Short description|Overview of scientific and technological developments in Iran/Persia}} ...using its [[safir (rocket)|own launcher]] and the sixth to send [[animals in space]].]] ...

...m³ is sometimes quoted as a commonly used criterion and is used in the body of this article. ...harmless (such as [[ruthenium]], silver and [[indium]]), but can be toxic in larger amounts or certain forms. Other heavy metals, such as [[arsenic]], [ ...

...right=1.5|Plastic film capacitors potted in rectangular casings, or dipped in epoxy lacquer coating (red color)]] ...most common capacitor types for use in electronic equipment, and are used in many [[Alternating current|AC]] and [[Direct current|DC]] [[microelectronic ...

...[https://books.google.com/books?id=whc4AAAAMAAJ&pg=PT5 digitized version] in [[Google Books]].</ref>]] ...radiation]], radioactive substances such as [[radon]] and [[radium]] found in the environment, and the potential health hazards of non-ionizing radiation ...

...47.jpg|alt=|thumb|[[Leonardo da Vinci|Leonardo]] wrote aerodynamic studies in a notebook eventually titled <nowiki>''</nowiki>[[Codex on the Flight of Bi ...reospecific Polymerization: A revolution in polymer synthesis has occurred in the last decade. |journal=Science |date=14 August 1964 |volume=145 |issue=3 ...