The L-4 Coaxial System

Blecher, F.; Boyd, R. C.; Hallenbeck, F. J.; Herr, F. J.

doi:10.1002/j.1538-7305.1969.tb04253.x

Cited by 9 publications

(2 citation statements)

References 7 publications

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“…(1) The first factor of the expression corresponds to a pure delay, whose exact value is of little concern in waveform transmission. The second factor, on the other hand, corresponds to dispersion and attenuation effects.…”

Section: Multipath Lb0 Structurementioning

confidence: 99%

Analysis of an adjustable multipath network for use in building out transmission-line skin-effect losses

Chen¹

1971

IEEE Trans. Circuit Theory

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Section: Multipath Lb0 Structurementioning

confidence: 99%

Analysis of an adjustable multipath network for use in building out transmission-line skin-effect losses

Chen¹

1971

IEEE Trans. Circuit Theory

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“…Das Verhalten nanopartikulärer Suspensionen bei der Nasszerkleinerung unterliegt starken interpartikulären Wechselwirkungen, da die Partikelkollisionsrate aufgrund der hohen Brownschen Molekularbewegung sowie der sich reduzierenden Partikel-Partikel-Abstände bei konstantem Massenanteil deutlich ausgeprägter ist als bei gröberen Suspensionen. Eine [9,10]. Dadurch resultierten häufig Temperaturen von 20 bis 45°C, die sich in Abhängigkeit von den Prozessbedingungen einstellen [11 -13].…”

Section: Introductionunclassified

Influence of the Process Temperature on the Stability of Nanoparticular Suspensions during the Grinding Process

Schroeder

Kwade

2012

Chemie Ingenieur Technik

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Die Prozessparameter sowie die Stabilisierung beeinflussen bei der Nasszerkleinerung in Rührwerkskugelmühlen die Produktivität von Nanopartikeln bzw. -suspensionen. Die Produkttemperatur spielte bisher bei der Untersuchung der Nanozerkleinerung nur eine untergeordnete Rolle. In der vorliegenden Arbeit lag der Fokus auf der Nanozerkleinerung von a-Aluminiumoxid in Wasser bei verschiedenen Zerkleinerungstemperaturen. Durch Variation der Kühlwassertemperatur wurde der Einfluss der Prozesstemperatur auf die Fließeigenschaften analysiert. Es zeigt sich ein Zusammenhang zwischen der Produktaustrittstemperatur und dem Zerkleinerungsfortschritt auf der einen und den Fließeigenschaften auf der anderen Seite.Wet grinding in stirred media mills enables high production outputs of nanoparticles and nanoparticular suspensions due to well chosen process parameters and stabilization additives. The effect of the process temperature during the nanogrinding process has not yet been considered in systematic studies. In this work grinding experiments were carried out using a-alumina in water as feed material. By varying the temperature of the cooling fluid, the influence of process temperature on the flow properties was analyzed. The experimental results show a correlation of the temperature with the grinding performance and with the flow properties of suspensions.

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Equalizing and Main Station Repeaters

Kelcourse¹,

Scheerer²,

Wirtz³

1969

Bell System Technical Journal

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The equalizing and main station repeaters, together with the L‐4 control center and command looping circuits, provide for the equalization and remote fault location in the L‐4 system. The use of pre‐ and postequalization procedures requires virtually identical circuits at the sending and receiving main station repeaters, while abbreviated versions of the same equipment are placed in up to two line equalizing repeaters per main section. In most cases these equalizing stations occur at approximately every twenty‐fifth repeater in a completed system. The fault‐locating circuits are distributed over the entire system and the control circuits required for their activation are located at the equalizing points.

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The L-4 Coaxial System

Cited by 9 publications

References 7 publications

Analysis of an adjustable multipath network for use in building out transmission-line skin-effect losses

Analysis of an adjustable multipath network for use in building out transmission-line skin-effect losses

Influence of the Process Temperature on the Stability of Nanoparticular Suspensions during the Grinding Process

Equalizing and Main Station Repeaters

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