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1. |
Record Nr. |
UNINA9910705299703321 |
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Titolo |
Fulfilling a key 9/11 Commission recommendation : implementing biometric exit : hearing before the Subcommittee on Border and Maritime Security of the Committee on Homeland Security, House of Representatives, One Hundred Thirteenth Congress, first session, September 26, 2013 |
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Pubbl/distr/stampa |
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Washington : , : U.S. Government Printing Office, , 2014 |
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Descrizione fisica |
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1 online resource (iii, 39 pages) : illustration |
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Soggetti |
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Biometric identification - United States |
Noncitizens - United States - Identification |
Illegal immigration - United States - Identification |
Visas - Government policy - United States |
Immigration enforcement - United States |
National security - United States |
Illegal immigration |
Legislative hearings. |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Title from title screen (viewed on March 19, 2014). |
Paper version available for sale by the Superintendent of Documents, United States Government Printing Office. |
"Serial no. 113-37." |
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Nota di bibliografia |
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Includes bibliographical references. |
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2. |
Record Nr. |
UNISA996575059503316 |
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Titolo |
2657-2021 - IEEE Guide for Energy Feedback System for DC Traction Power Supply System / / Institute of Electrical and Electronics Engineer |
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Pubbl/distr/stampa |
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[Place of publication not identified] : , : IEEE, , 2021 |
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ISBN |
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Descrizione fisica |
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1 online resource (51 pages) |
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Disciplina |
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Soggetti |
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Energy consumption |
Energy policy |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Sommario/riassunto |
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In the dc electric railways, when a train regenerates power, usually the power has to be consumed within the dc network because the dc traction power systems are often not reversible. Several technologies improve receptivity: energy consumption, energy feedback, and energy storage. Solution selection depends on the application. The energy feedback systems (EFSs) convert energy to ac power system as system dc voltage rises. Engineers are helped by this guide to decide where these EFSs can provide the greatest benefits, determine which design solutions will have the maximum effectiveness, and evaluate the costs and benefits of developing new EFS projects. |
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