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24-Type loop checking system - Application and field test results in the bell telephone system
IEEE Transactions on Communication and Electronics, 1963A simple inexpensive system for checking transmission on subscriber lines has been developed. The system includes a small portable loop checker for use at the customer location and a sweep-frequency generator located at the central office. Operational field trials to determine the most effective methods of applying the system and the results obtained ...
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Genome folding through loop extrusion by SMC complexes
Nature Reviews Molecular Cell Biology, 2021Iain F Davidson, Jan-Michael Peters
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Heat transfer performances of the capillary loop pulsating heat pipes with spring-loaded check valve
Applied Thermal Engineering, 2020Zhenping Wan
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Heat transfer characteristics of a novel closed-loop pulsating heat pipe with a check valve
Applied Thermal Engineering, 2018Zhenping Wan, Longsheng Lu
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