Pinder, the contracting square quantum well, 1990, paper
Báo cáo hóa học: " Effect of triplet multiple quantum well structures on the performance of blue phosphorescent organic light emitting diodes" potx
... Effect of triplet multiple quantum well structures on the performance of blue phosphorescent organic light- emitting diodes Seokjae Lee†1, Jaryong Koo†1, Gunwoo Hyung†1, Donghwan Lim1, Donghyung ... the other devices due to a relatively narrow emissive region Conclusions In conclusion, the present study reports on the high efficiency blue PHOLEDs based...
Ngày tải lên: 20/06/2014, 23:20
Pin mặt trời sử dụng công nghệ giếng lượng tử ( quantum well solar cell)
... 800 800 900 900 Reflectivity (% ) Internal quantum efficiency (% ) 100 100 0 1000 1000 Wavelength (nm) Wavelength (nm) [3] D.C Johnson et al Solar Energy Materials and Solar Cells, 2005 Giải thích ... Nguyên lí Chế tạo Ưu Ứng dụng Nguyên lí • • • • Cấu trúc giếng lượng tử (QW) Nguyên liệu chế tạo QW Phân loại QW Hố lượng tử GaAs/GaAsAl outline • • • • • • History-lịch...
Ngày tải lên: 06/12/2012, 08:28
The transformation of the American class structure, 1960-1990
... expand The basic hypotheses of Marxist and postindustrial perspectives are summarized in Table 3.1 American class structure, 1960±1990 59 Table 3.1 Hypotheses for transformations of the American class ... working class is 54% of the labor force ± nevertheless, the trajectory of change is more in keeping with the expectations of post-industrial theory than tradi...
Ngày tải lên: 01/11/2013, 07:20
Tài liệu The Science of Being Well - By Wallace D.Wattles doc
... to take of the unlimited supply www.scienceofbeingwell.net The Science of Being Well 33 Professor James* has pointed out that there is apparently no limit to the powers of the human being, and ... for the health he receives A person may cultivate both faith and gratitude by the proper use of his will www.scienceofbeingwell.net The Science of Being Well 2...
Ngày tải lên: 21/01/2014, 21:20
ADVANCING THE HEALTH, SAFETY, AND WELL-BEING OF OUR PEOPLE pdf
... Advancing the Health, Safety, and Well-Being of Our People ADVANCING THE HEALTH, SAFETY, AND WELL-BEING OF OUR PEOPLE The Department of Health and Human Services enhances the health and well-being of ... meets the diverse needs of families and fosters healthy child development Advancing the Health, Safety, and Well-Being of...
Ngày tải lên: 05/03/2014, 13:20
More Better? The Impact of Postsecondary Education on the Economic and Social Well-Being of American Society ppt
... discern whether more education is actually better for the individual and society We investigate the literature and ask: What are the economic and non -economic returns to postsecondary education investments? ... address the economic returns of education Our first discussion concerns private returns on education: the economic benefits to the individual...
Ngày tải lên: 17/03/2014, 08:20
OUTBREAKS BY THE NUMBERS: FRUITS AND VEGETABLES 1990-2005 potx
... produce in the CSPI database Produce outbreaks account for 13% of foodborne illness outbreaks and 21% of illnesses in the database (Figure 1) Fifty percent of the produce outbreaks are caused by food ... with E coli, and potatoes with Salmonella In all produce outbreaks, Norovirus is the top cause of outbreaks (40%), followed by Salmonella (18%), E coli (8%) and Clo...
Ngày tải lên: 31/03/2014, 18:20
highly efficient blue organic light emitting diodes using quantum well like
... Highly efficient blue organic light- emitting diodes using quantum well- like multiple emissive layer structure Ju-An Yoon1 Email: jjuan25@naver.com ... Abstract In this study, the properties of blue organic light- emitting diodes (OLEDs), employing quantum well- like structure (QWS) that includes four different blue emissive materials of 4,4′-bis(2,2′-diph...
Ngày tải lên: 06/05/2014, 08:55
alexandersson - living water - viktor schauberger and the secrets of natural energy (1990)
... middle of the river rather than near the banks, and in this way achieve a deepening of the water channel along the axis in the middle of the river With the increased depth of water, the particles of ... and then suddenly grounded on the bottom of the trough, causing the water behind the log to rise and eventually to flow over the sides of th...
Ngày tải lên: 04/06/2014, 12:43