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1

Antonio, Martí, Luque A, and Institute of Physics (Great Britain)., eds. Next generation photovoltaics: High efficiency through full spectrum utilization. Bristol: Institute of Physics, 2004.

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2

United States. General Accounting Office., United States. Congress. House. Committee on Government Reform., and United States. Congress. House. Committee on Government Reform. Subcommittee on Technology, Information Policy, Intergovernmental Relations, and the Census., eds. Spectrum management: Better knowledge needed to take advanage of technologies that may improve spectrum efficiency : report to Congressional Requesters. Washington, D.C: U.S. General Accounting Office, 2004.

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3

Creating opportunities through improved government spectrum efficiency: Hearing before the Subcommittee on Communications and Technology of the Committee on Energy and Commerce, House of Representatives, One Hundred Twelfth Congress, second session, September 13, 2012. Washington: U.S. Government Printing Office, 2014.

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4

Ren, Ju, Ning Zhang, and Xuemin Shen. Energy-Efficient Spectrum Management for Cognitive Radio Sensor Networks. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-60318-6.

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5

Rubak, Jan. Efficient spectral representation of measured signals. Ottawa: National Library of Canada, 2002.

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6

Zhou, Xiang, and Chongjin Xie, eds. Enabling Technologies for High Spectral-Efficiency Coherent Optical Communication Networks. Hoboken, NJ, USA: John Wiley & Sons, Inc, 2016. http://dx.doi.org/10.1002/9781119078289.

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7

United States. National Aeronautics and Space Administration., ed. Pulse shaped 8-PSK bandwidth efficiency and spectral spike elimination. Las Cruces, N.M: New Mexico State University, 1998.

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8

United States. National Aeronautics and Space Administration., ed. Pulse shaped 8-PSK bandwidth efficiency and spectral spike elimination. Las Cruces, N.M: New Mexico State University, 1998.

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9

United States. National Aeronautics and Space Administration., ed. Pulse shaped 8-PSK bandwidth efficiency and spectral spike elimination. Las Cruces, N.M: New Mexico State University, 1998.

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10

United States. National Aeronautics and Space Administration., ed. Pulse shaped 8-PSK bandwidth efficiency and spectral spike elimination. Las Cruces, N.M: New Mexico State University, 1998.

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11

Struck, Charles W. Understanding luminescence spectra and efficiency using Wp and related functions. Berlin: Springer-Verlag, 1991.

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12

Struck, Charles W., and William H. Fonger. Understanding Luminescence Spectra and Efficiency Using Wp and Related Functions. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-48629-6.

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13

Struck, Charles W. Understanding Luminescence Spectra and Efficiency Using Wp and Related Functions. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991.

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14

David, Torres, and Lewis Research Center, eds. An efficient spectral method for ordinary differential equations. Cleveland, Ohio: NASA, Lewis Research Center, Institute for Computational Mechanics in Propulsion, 1994.

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15

Yuan, Weijie, Nan Wu, and Jingming Kuang. Receiver Design for High Spectral Efficiency Communication Systems in Beyond 5G. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8090-9.

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16

Malmodin, Daniel. Efficient recording and processing of protein NMR spectra. Göteborg: Göteborg University, Department of Chemistry, 2006.

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17

P, Nordin Gregory, and United States. National Aeronautics and Space Administration., eds. Stratified diffractive optic approach for creating high efficiency gratings. [Washington, DC: National Aeronautics and Space Administration, 1998.

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18

K, Kokula Krishna Hari, ed. Cancellation of ISI and High Spectral Efficiency Using Adaptive OFDMA: ICIEMS 2014. India: Association of Scientists, Developers and Faculties, 2014.

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19

Tallini, Luca. On efficient m-ary q-th order spectral-null codes. Corvallis, OR: Oregon State University, Dept. of Computer Science, 1998.

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20

Tallini, Luca. On efficient m-ary q-th order spectral-null codes. Corvallis, OR: Oregon State University, Dept. of Computer Science, 1998.

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21

Heinrichs, Wilhelm. Efficient iterative solution of spectral systems for the Navier-Stokes equations. Berlin: Köster, 1994.

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22

International Commission on Illumination. Technical Committee 1-02 Luminous Efficiency Functions., ed. Spectral luminous efficiency functions based upon brightness matching for monochromatic point sources 2° and 10° fields. Vienna: Central Bureau of the CIE, 1988.

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23

Yazicigil, Rabia Tugce. Compressive Sampling as an Enabling Solution for Energy-Efficient and Rapid Wideband RF Spectrum Sensing in Emerging Cognitive Radio Systems. [New York, N.Y.?]: [publisher not identified], 2016.

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24

United States. National Aeronautics and Space Administration., ed. Investigation of the basic physics of high efficiency semiconductor hot carrier solar cell: Annual status report for NASA grant #NAG 3-1490. [Washington, DC: National Aeronautics and Space Administration, 1995.

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25

United States. Government Accountability Office. Telecommunications: Strong support for extending FCC's auction authority exists, but little agreement on other options to improve efficient use of spectrum : report to congressional committees. Washington, D.C: GAO, 2005.

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26

Chubb, Donald L. Emittance theory for thin film selective emitter. [Washington, DC]: National Aeronautics and Space Administration, 1994.

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27

Chubb, Donald L. Emittance theory for thin film selective emitter. [Washington, DC]: National Aeronautics and Space Administration, 1994.

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28

United States. National Aeronautics and Space Administration., ed. Radiative performance of rare earth garnet thin film selective emitters. [Washington, DC]: National Aeronautics and Space Administration, 1994.

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29

Marti, A., and A. Luque. Next Generation Photovoltaics: High Efficiency Through Full Spectrum Utilization. Taylor & Francis Group, 2003.

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30

Kumar, Sunil, Fei Hu, and John D. Matyjas. Spectrum Sharing in Wireless Networks: Fairness, Efficiency, and Security. Taylor & Francis Group, 2016.

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31

Kumar, Sunil, Fei Hu, and John D. Matyjas. Spectrum Sharing in Wireless Networks: Fairness, Efficiency, and Security. Taylor & Francis Group, 2016.

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32

Kumar, Sunil, Fei Hu, and John D. Matyjas. Spectrum Sharing in Wireless Networks: Fairness, Efficiency, and Security. Taylor & Francis Group, 2016.

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33

Spectrum Sharing in Wireless Networks: Fairness, Efficiency, and Security. Taylor & Francis Group, 2016.

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34

Marti, A., and A. Luque. Next Generation Photovoltaics: High Efficiency Through Full Spectrum Utilization. Taylor & Francis Group, 2003.

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35

Kumar, Sunil, Fei Hu, and John D. Matyjas. Spectrum Sharing in Wireless Networks: Fairness, Efficiency, and Security. Taylor & Francis Group, 2016.

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36

A survey of relative spectrum efficiency of mobile voice communication systems. [Boulder, Colo.]: U.S. Dept. of Commerce, National Telecommunications and Information Administration, 1994.

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37

Next Generation Photovoltaics: High Efficiency through Full Spectrum Utilization (Series in Optics and Optoelectronics). Taylor & Francis, 2003.

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38

Wolf, E. L. Solar Cell Physics and Technologies. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198769804.003.0010.

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Solar cells are based on semiconductor pn junctions. Absorption of sunlight is optimal at bandgap energies near one electron volt, and greatly increases the reverse current density. The efficiency of the cell is described by the “filling factor”, and is limited, for single junction cells, by the Quiesser–Shockley limit, near 30 percent. Tandem cells, series combinations of cells, absorb a larger portion of the solar spectrum with higher efficiency but with greater complexity and cost. Such cells are used with focusing optics that inherently raises the efficiency, but also the complexity and cost. This is a textbook for physics, chemistry and engineering students interested in the future of energy as impacted by depletion of fossil fuels, and in the effects of fossil fuel burning on climate.
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39

Miao, Guowang, and Guocong Song. Energy and Spectrum Efficient Wireless Network Design. Cambridge University Press, 2014.

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40

Miao, Guowang, and Guocong Song. Energy and Spectrum Efficient Wireless Network Design. Cambridge University Press, 2014.

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41

Energy and Spectrum Efficient Wireless Network Design. Cambridge University Press, 2014.

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42

Wright, A. G. Photocathodes. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199565092.003.0002.

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Optical properties of photocathodes and their characterization in terms of absorptance, transparency, and reflectance in mixed dielectric media are presented. Photometric units and international standards are based on a specified white light source. The electromagnetic spectrum covers about a decade in wavelength and there is a relationship between photon energy and wavelength. Spectral responsivity can be specified in milliamps per watt or as quantum efficiency, η‎(λ‎), in terms of photoelectrons per incident photon. Empirical specifications, based on filtered light from a standard white light source give a measure of the photocathode response to blue, red, and infrared light. Bialkali photocathodes laid on a conducting substrate can operate at ultra-low temperatures approaching absolute zero, while others can survive operation at 200 °C. End window and side window photomultipliers are available in a range of diameters and photocathode types.
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43

Wolf, E. L. Solar Thermal Energy. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198769804.003.0009.

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The Sun’s spectrum on Earth is modified by the atmosphere, and is harvested either by generating heat for direct use or for running heat engines, or by quantum absorption in solar cells, to be discussed later. Focusing of sunlight requires tracking of the Sun and is defeated on cloudy days. Heat engines have efficiency limits similar to the Carnot cycle limit. The steam turbine follows the Rankine cycle and is well developed in technology, optimally using a re-heat cycle of higher efficiency. Having learned quite a bit about how the Sun’s energy is created, and how that process might be reproduced on Earth, we turn now to methods for harvesting the energy from the Sun as a sustainable replacement for fossil fuel energy.
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44

Björnson, Emil, Jakob Hoydis, and Luca Sanguinetti. Massive MIMO Networks: Spectral, Energy, and Hardware Efficiency. Now Publishers, 2017.

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45

Zhang, Ning, Xuemin (Sherman) Shen, and Ju Ren. Energy-Efficient Spectrum Management for Cognitive Radio Sensor Networks. Springer, 2017.

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46

Zhang, Ning, Xuemin (Sherman) Shen, and Ju Ren. Energy-Efficient Spectrum Management for Cognitive Radio Sensor Networks. Springer, 2018.

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47

Efficient Use of the Radio Spectrum; NBS Technical Note 158. Creative Media Partners, LLC, 2021.

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48

Zhou, Xiang, and Chongjin Xie. Enabling Technologies for High Spectral-Efficiency Coherent Optical Communication Networks. Wiley & Sons, Limited, John, 2020.

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49

Zhou, Xiang, and Chongjin Xie. Enabling Technologies for High Spectral-Efficiency Coherent Optical Communication Networks. Wiley & Sons, Incorporated, John, 2016.

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50

Zhou, Xiang, and Chongjin Xie. Enabling Technologies for High Spectral-Efficiency Coherent Optical Communication Networks. Wiley & Sons, Incorporated, John, 2016.

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