geopolitics and the green revolution wheat genes and the cold war dec 1997
geopolitics and the green revolution wheat genes and the cold war dec 1997
... the origins and unfolding of the scientific work upon which the green revolution was based. 20 Geopolitics and the Green Revolution and barley as they appear in manufactured products ... are the plant tissues between the main stem and its leaves.) Each tiller also develops a growing tip that produces first leaves and then ears and 22...
Ngày tải lên: 11/06/2014, 09:48
The Future of Genetically Modified Crops - Lesson from the Green Revolution pdf
... FAOSTAT). Funding How the Green Revolution was financed can be seen as a twofold process: funding the research to develop the technologies and to transfer them to various parts of the world, and then financing the agricultural ... At the end of the chapter, we provide les- sons from the Green Revolution for future agricultural revolutions (including the ongoing G...
Ngày tải lên: 15/03/2014, 22:20
Three Dimensional Integration and Modeling A Revolution in RF and Wireless Packaging by Jong Hoon Lee Emmanuil Manos M Tentzeris and Constantine A Balanis_3 ppt
... so that the measurement of the packaged chip could be made immediately upon removal from the water. The gain of the packaged MMIC was then measured and compared with the gain before the submersion test. ... in Figs. 3.3 and 3.4. The S-parameters of the packaged switch and the nonpackaged switch are nearly identical in both the up and down states. For example, th...
Ngày tải lên: 21/06/2014, 22:20
Three Dimensional Integration and Modeling A Revolution in RF and Wireless Packaging by Jong Hoon Lee Emmanuil Manos M Tentzeris and Constantine A Balanis_4 docx
... away from the cutoff frequency of the passband. The discrepancy of the zero positions between the measurement and the simulation can be attributed to the fabrication tolerance. However, the overall ... g i is the element values of the low pass prototype, FBW is the fractional bandwidth, and J i is the characteristic admittances of the filter. From (4.1) the desi...
Ngày tải lên: 21/06/2014, 22:20
Three Dimensional Integration and Modeling A Revolution in RF and Wireless Packaging by Jong Hoon Lee Emmanuil Manos M Tentzeris and Constantine A Balanis_5 docx
... f res is the resonant frequency, c the speed light in the free space, ε r the dielectric constant, L the length of cavity, W the width of cavity, and H the height of the cavity. Using (5.1), the initial dimensions ... (ISM) band transceiver front-end modules. The center frequencies of 60.25 GHz and 62.75 GHz in the band are selected for the Rx channel and the T...
Ngày tải lên: 21/06/2014, 22:20
Three Dimensional Integration and Modeling A Revolution in RF and Wireless Packaging by Jong Hoon Lee Emmanuil Manos M Tentzeris and Constantine A Balanis_7 ppt
... GHz and <2.1 GHz, respectively, away from the center frequency at the lower band than the passband. One transmission zero is observed within <1.7 GHz at the higher band than the passband. The discrepancy ... closer to the center frequency of the passband than the lower stop-band zero. In the case of a Tx filter, the lower zero is located closer to the center fre...
Ngày tải lên: 21/06/2014, 22:20
Three Dimensional Integration and Modeling A Revolution in RF and Wireless Packaging by Jong Hoon Lee Emmanuil Manos M Tentzeris and Constantine A Balanis_8 ppt
... significantly on the bandwidth of the patch. We compared the gains among the patch antennas with the soft surface and the stacked cavity, with the soft surface only, and without the soft surface. The simulated ... measured and simulated results is mainly due to the fabrication issues (such as the variation of dielectric constant or /and the deviation of via posit...
Ngày tải lên: 21/06/2014, 22:20
Three Dimensional Integration and Modeling A Revolution in RF and Wireless Packaging by Jong Hoon Lee Emmanuil Manos M Tentzeris and Constantine A Balanis_10 pot
... 1987 and he received the Diploma degree in Electrical Engineering and Com- puter Science (Magna Cum Laude) from the National Technical University in Athens, Greece, in 1992 and the M.S. and Ph.D. ... G. Bertin, and M. Mongiardo, “Elliptical cavity resonators for dual-mode narrow-band filters,” IEEE Transaction on Microwave Theory and Technique, vol. 45, no. 12, pp. 2393–2401,...
Ngày tải lên: 21/06/2014, 22:20