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Photoconductive Decay Lifetime and Suns-Voc Diagnostics of Efficient Heterojunction Solar Cells

None
Date: May 1, 2008
Creator: Page, M. R.; Iwaniczko, E.; Xu, Y.; Roybal, L.; Bauer, R.; Yuan, H.-C. et al.
System: The UNT Digital Library

Comparison of Predictive Models for PV Module Performance (Presentation)

This paper examines three models used to estimate the maximum power (P{sub m}) of PV modules when the irradiance and PV cell temperature are known: (1) the power temperature coefficient model, (2) the PVFORM model, and (3) the bilinear interpolation model. A variation of the power temperature coefficient model is also presented that improved model accuracy. For modeling values of P{sub m}, an 'effective' plane-of-array (POA) irradiance (E{sub e}) and the PV cell temperature (T) are used as model inputs. Using E{sub e} essentially removes the effects of variations in solar spectrum and reflectance losses, and permits the influence of irradiance and temperature on model performance for P{sub m} to be more easily studied. Eq. 1 is used to determine E{sub e} from T and the PV module's measured short-circuit current (I{sub sc}). Zero subscripts denote performance at Standard Reporting Conditions (SRC).
Date: May 1, 2008
Creator: Marion, B.
System: The UNT Digital Library

Crystal Silicon Heterojunction Solar Cells by Hot-wire CVD (Presentation)

None
Date: May 1, 2008
Creator: Wang, Q.; Page, M. R.; Iwaniczko, E.; Xu, Y. Q.; Roybal, L.; Bauer, R. et al.
System: The UNT Digital Library

Newsmap. For the Armed Forces. 242nd week of the war, 124th week of U.S. participation

Front: Text describes action on various war fronts: Western Europe, USSR, Italy, Southwest Pacific, Central Pacific, Southeast Asia, China. Map: Southwest Pacific showing areas of action. Includes photographs: Various sizes of bombs; German self-propelled gun with an American tank and a Nazi armored personnel carrier in the background; Capsized liberty ship in Naples harbor; View of Sabang Harbour before being taken by Japanese; Allied planes carry out some of the heaviest bombing operations at Hollandia airfield. Back: Memorandum for the Armed Forces. Subject: Home front production. Includes photographs: Guns; Shells; Vehicles; Planes; Ships. Text includes 4 point memorandum and descriptions of photographs.
Date: May 1, 1944
Creator: [United States.] Army Service Forces. Army Information Branch.
System: The UNT Digital Library

Photon and neutron productions studies in the MIPP experiment

None
Date: May 1, 2006
Creator: Nigmanov, Turgun
System: The UNT Digital Library