1.

Record Nr.

UNINA9910694314003321

Titolo

Wildlife and oceans in a changing climate : oversight hearing before the Subcommittee on Fisheries, Wildlife, and Oceans of the Committee on Natural Resources, U.S. House of Representatives, One Hundred Tenth Congress, first session, Tuesday, April 17, 2007

Descrizione fisica

1 online resource (iii, 172 p.) : ill

Soggetti

Ocean temperature - Environmental aspects

Climatic changes

Animal populations - Climatic factors

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

2.

Record Nr.

UNINA9910872693703321

Titolo

42nd Midwest Symposium on Circuits and Systems, 1999

Pubbl/distr/stampa

[Place of publication not identified], : I E E E, 1999

Descrizione fisica

1 online resource (1246 pages)

Disciplina

621.315

Soggetti

Electric circuits

Electrical engineering

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Bibliographic Level Mode of Issuance: Monograph

Sommario/riassunto

The newly developed phase-shift controlled bi-directional DC-DC converter has the conventional features of phase-shifted converters, including zero-voltage switching (ZVS) and constant switching frequency. However, it has been improved by developing a bi-



directional power flow capability and applying synchronous rectification, hence the on-state voltage drop of the active devices are small.