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Статті в журналах з теми "Down and Up conversions"
LI Bin, 李斌, 冯勋立 FENG Xun-li, and 张智明 ZHANG Zhi-ming. "Frequency Up- and Down-conversions in Two-mode Cavity." ACTA PHOTONICA SINICA 40, no. 8 (2011): 1161–65. http://dx.doi.org/10.3788/gzxb20114008.1161.
Повний текст джерелаLin, Hang, José Marqués-Hueso, Daqin Chen, Yuansheng Wang, and Bryce S. Richards. "Tm3+-sensitized up- and down-conversions in nano-structured oxyfluoride glass ceramics." Materials Research Bulletin 47, no. 12 (December 2012): 4433–37. http://dx.doi.org/10.1016/j.materresbull.2012.09.048.
Повний текст джерелаZhuang, Jianle, Xianfeng Yang, Junxiang Fu, Chaolun Liang, Mingmei Wu, Jing Wang та Qiang Su. "Monodispersed β-NaYF4 Mesocrystals: In Situ Ion Exchange and Multicolor Up- and Down-Conversions". Crystal Growth & Design 13, № 6 (6 травня 2013): 2292–97. http://dx.doi.org/10.1021/cg301751c.
Повний текст джерелаWang, L., P. Li, and Y. Li. "Down- and Up-Conversion Luminescent Nanorods." Advanced Materials 19, no. 20 (September 20, 2007): 3304–7. http://dx.doi.org/10.1002/adma.200700144.
Повний текст джерелаJuan, Yu Lin. "A Wide Voltage-Ratio Dual-Output DC Converter for Charging Series-Connected Batteries." Energies 12, no. 9 (April 30, 2019): 1650. http://dx.doi.org/10.3390/en12091650.
Повний текст джерелаDing, Mingye, Chunhua Lu, Yan Song, Yaru Ni та Zhongzi Xu. "Hydrothermal synthesis of ordered β-NaYF4 nanorod self-assemblies with multicolor up- and down-conversions". CrystEngComm 16, № 6 (2014): 1163. http://dx.doi.org/10.1039/c3ce41860j.
Повний текст джерелаEhrler, Bruno, Nobuhiro Yanai, and Lea Nienhaus. "Up- and down-conversion in molecules and materials." Journal of Chemical Physics 154, no. 7 (February 21, 2021): 070401. http://dx.doi.org/10.1063/5.0045323.
Повний текст джерелаYan, R. X., and Y. D. Li. "Down/Up Conversion in Ln3+-Doped YF3 Nanocrystals." Advanced Functional Materials 15, no. 5 (May 2005): 763–70. http://dx.doi.org/10.1002/adfm.200305044.
Повний текст джерелаScudder, Jillian M., Sara L. Ellison, Loubna El Meddah El Idrissi, and Henry Poetrodjojo. "Conversions between gas-phase metallicities in MaNGA." Monthly Notices of the Royal Astronomical Society 507, no. 2 (August 13, 2021): 2468–87. http://dx.doi.org/10.1093/mnras/stab2339.
Повний текст джерелаZhu, Jing, Shuai Yan, Hongjia Huang, Wei Cong, Changhui Gong, Fanfan Zheng, and Shuo Li. "Research on Key Technologies of High-Reliability Telemetry Transmitters for Launch Vehicle Carrying." Journal of Physics: Conference Series 2670, no. 1 (December 1, 2023): 012016. http://dx.doi.org/10.1088/1742-6596/2670/1/012016.
Повний текст джерелаДисертації з теми "Down and Up conversions"
Smara, Zakarya. "Etudes des propriétés optiques de nanoparticules de fluorures Na(Y,Bi)F4 dopées par des ions de terres rares et synthétisées par coprécipitation." Electronic Thesis or Diss., Université Clermont Auvergne (2021-...), 2021. http://www.theses.fr/2021UCFAC030.
Повний текст джерелаThis work is devoted to the development of nanophosphors of formulations β-NaBiF4 and α-NaYF4 monodoped Eu3+, Tb3+, Pr3+, codoped with Yb3+ and tridoped with Ce3+. These materials were prepared by coprecipitation, and the synthesis parameters were optimized to produce nanocubes (NCs) with edge lengths between 35 and 65 nm, reproducibly and with a narrow size distribution. The obtained NCs were characterized from a structural (XRD, IR), morphological (SEM and TEM) and optical (photoluminescence) point of view, making it possible to confirm their crystalline purities on the one hand and to record spectral distributions of luminescence in accordance with those expected on the other hand. Analysis of emission spectra and fluorescence decays, under UV and / or near infrared excitations, has demonstrated that efficient Stokes and anti-Stokes conversion processes occur in these NCs. The results are discussed by considering various paths of radiative de-excitations and energy transfer, making it possible to conclude that the two processes can be generated on the same NC, even if the latter are in competition in certain cases
Termos, Hassan. "Study of up & down conversion technique by all-optical sampling based on SOA-MZI." Thesis, Brest, 2017. http://www.theses.fr/2017BRES0021/document.
Повний текст джерелаFrequency mixing is a key function existing in different systems, especially in mixed photonic-microwave ones. Today, the supremacy of optical networks to carry high bitrate data over large distances motivates the optical implementation of such functions to benefit from the low loss, high bandwidth, low size and weight of optical technologies. In this work, we study a photonic mixer based on a SOA-MZI (Semiconductor Optical Amplifier Mach-Zehnder Interferometer) device and a sampling technique allowing both conversion towards high and low frequencies.The involved mixing principle exploits the spectral characteristics of a sampled signal in which replicas of the original spectrum exist at different other frequencies. Basing the frequency conversion on a sampling technique gives two advantages: the photonic mixer configuration is the same for up and down conversions, and the frequency of the local oscillator can be less than the addressed frequency range.The implementation of such a sampling technique needs an optically-controlled high-frequency optical switch. As shown in this work, a SOA-MZI can play this role. Depending on the relative phase between its arms, an interferometric structure (MZI) can transmit or cancel an optical input signal. By locating one SOA in each arm of the MZI structure, the cross-phase modulation that exists inside an SOA is exploited to optically control the optical switch state of the MZI.Controlled by an optical pulse source, this optical switch is able to sample an optical input signal carrying complexmodulated data. Frequency conversions of mono and multi-carrier signals in the range 0.5-39.5 GHz have been successfully achieved. By using a differential configuration of the SOA-MZI, both up and down conversions at bitrates up to 1 Gb/s are reached
Cheroura, Youcef. "Photoconversion et exaltation plasmonique de nanoparticules de β-NaGdF4 pour potentielles applications photovoltaïques sur silicium". Electronic Thesis or Diss., Université Clermont Auvergne (2021-...), 2021. http://www.theses.fr/2021UCFAC023.
Повний текст джерелаA multifunctional system was developed to be used as a dual ultraviolet (UV) and near infrared (NIR) light harvester and photo-converters by Down (DS-DC) and Up Conversions (UC) in visible light to enhance the light trapping properties of thin-film solar cells. Nanorods ( 140 nm x 60 nm) of β-NaGdF4 singly doped by Eu3+, Pr3+, Er3+ and co-doped by Yb3+ were synthesized by co-precipitation method (optimized conditions: 150°C, 60 min). The structural and morphological properties were characterized by X-ray diffraction, infrared spectroscopy, Raman and electron microscopy (TEM) confirming the quality of the elaborated materials. Using the structural probe properties of the Eu3+ ion, local order was identified and discussed on the basis of Judd-Ofelt theory. The analysis of the fluorescence properties was carried out under pulsed and cw excitations. The radiative de-excitation and energy transfer channels for both DC and UC processes, occurring in each system, have been identified and discussed based on the evolution of fluorescence intensities as a function of continuous pump power and on the kinetics of luminescence decays under UV and NIR excitations. Particular attention was paid to the Er3+/Yb3+ system for which a coupling by plasmonic effect was considered with metallic nanoparticles (NPMs) of noble metals gold and silver. Depending on the nature, shape and size of the NPMs, enhancements or attenuations of fluorescence intensities, in addition in some cases to an increase in decaying rates have been observed. They are discussed considering two main processes, scattering and the Purcell effects
Dieudonné, Belto. "Guides d’onde en verres et vitrocéramiques fluorés dopés terre rare élaborés par PVD pour l’émission dans le visible et la conversion de fréquence." Thesis, Le Mans, 2012. http://www.theses.fr/2012LEMA1023/document.
Повний текст джерелаThe project joins in the development of miniaturized laser sources RGB for display and videoprojection, frequency conversion in solar cells.Fluoride glasses ZLAG ( ZrF4-LaF3-AlF3-GaF3) co-doped with rare earths were studied. This glass has a low phonon energy, a strong solubility of the rare earth ions and can be fabricated as thin films by PVD. It is also the precursor of transparent glass-ceramics. Similar emissions in both co-doped bulk and waveguides have been observed ; blue, orange, red emission for Pr3+-Yb3+ and blue, red emission for Tm3+-Yb3+. The RGB emission in bulk Tm3+-Er3+-Yb3+ tri-doped glass seems promising. Furthermore, the absorption cross section of Pr3+ and Yb3+ ions has been increased by 30% with the ceraming process.An energy transfer efficiency (ETE) of 92% has been obtained for co-doped glass with 0,5Pr3+-10Yb3+ for the conversion process of a blue photon into two infrared one
Tian, Hai, Tom Trojak, and Charles H. Jones. "COMMUNICATIONS OVER AIRCRAFT POWER LINES: A PRACTICAL IMPLEMENTATION." International Foundation for Telemetering, 2006. http://hdl.handle.net/10150/603939.
Повний текст джерелаThis paper presents a practical implementation of a hardware design for transmission of data over aircraft power lines. The intent of such hardware is to significantly reduce the wiring in the aircraft instrumentation system. The potential usages of this technology include pulse code modulation (PCM), Ethernet and other forms data communications. Details of the fieldprogrammable gate array (FPGA) and printed circuit board (PCB) designs of the digital and analog front end will be discussed. The power line is not designed for data transmission. It contains considerable noise, multipath effects, and time varying impedance. Spectral analysis data of an aircraft is presented to indicate the difficulty of the problem at hand. A robust modulation is required to overcome the harsh environment and to provide reliable transmission. Orthogonal frequency division multiplexing (OFDM) has been used in power line communication industry with a great deal of success. OFDM has been deemed the most appropriate technology for high-speed data transmission on aircraft power lines. Additionally, forward error correction (FEC) techniques are discussed.
Dieudonné, Belto. "Guides d'onde en verres et vitrocéramiques fluorés dopés terre rare élaborés par PVD pour l'émission dans le visible et la conversion de fréquence." Phd thesis, Université du Maine, 2012. http://tel.archives-ouvertes.fr/tel-00808593.
Повний текст джерелаBjörklund, Daniel. "Implementation of a Software-Defined Radio Transceiver on High-Speed Digitizer/Generator SDR14." Thesis, Linköpings universitet, Elektroniksystem, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-78213.
Повний текст джерелаBall, Justin. "Up-down asymmetric tokamaks." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:b7932b07-1388-497e-8d95-4bdffabc52d9.
Повний текст джерелаSolway, David. "Teaching down or learning up." Mémoire, Université de Sherbrooke, 1995. http://hdl.handle.net/11143/9212.
Повний текст джерелаKarlsson, Rikard. "Hybrid start up/shut down vibrations." Thesis, KTH, Farkost och flyg, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-39688.
Повний текст джерелаКниги з теми "Down and Up conversions"
Munsch, Robert N. Up, up, down. Toronto: Scholastic, 2011.
Знайти повний текст джерелаMunsch, Robert N. Up, up, down! New York: Scholastic, 2001.
Знайти повний текст джерелаMunsch, Robert N. Up, up, down. New York: Scholastic, 2002.
Знайти повний текст джерелаLittle Acorn & Associates, Inc and Roberta Suid, eds. Up down. Iverness, CA: Monday Morning Books, 2006.
Знайти повний текст джерелаUp / down. New York: Benchmark Books, 2004.
Знайти повний текст джерелаUp & down. [New York]: Little Simon, 1993.
Знайти повний текст джерелаStaying up, up, up in a down, down, world. Nashville, Tenn: Thomas Nelson, 2000.
Знайти повний текст джерелаUp, down, and up again. Santa Cruz, CA: American Poetry Association, 1990.
Знайти повний текст джерелаUp and down. Unity, Me: Five Star, 2000.
Знайти повний текст джерелаRivière, Marc. Up and down. Paris: Ipso Facto, 1999.
Знайти повний текст джерелаЧастини книг з теми "Down and Up conversions"
Zieliński, Tomasz P. "Introduction to SDR: IQ Signals and Frequency Up-Down Conversion." In Starting Digital Signal Processing in Telecommunication Engineering, 483–515. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-49256-4_17.
Повний текст джерелаAgrawal, Ruchi, Manas Srivastava, and Raghumani S. Ningthoujam. "Photo-Luminescent Materials: Down-Conversion, Quantum Cutting, Up-Conversion, Photo-Avalanche, Core@Shell Nanostructures." In Handbook of Materials Science, Volume 1, 25–67. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-7145-9_2.
Повний текст джерелаBorne, Adrien, Iännis Roland, Marco Ravaro, Giuseppe Marino, Stefan Suffit, Pascal Filloux, Aristide Lemaître, Ivan Favero, and Giuseppe Leo. "Nonlinear Up- and Down-Conversion in AlGaAs Microdisks Integrated in a Photonic Circuit." In NATO Science for Peace and Security Series B: Physics and Biophysics, 247–49. Dordrecht: Springer Netherlands, 2021. http://dx.doi.org/10.1007/978-94-024-2138-5_15.
Повний текст джерелаBill, Kirsten. ""Thus Alle pis Thyngys Turnyng Up-so-down": Translation, Conversion and Subjectivity in The Book of Margery Kempe." In The Medieval Translator. Traduire au Moyen Age, 270–84. Turnhout: Brepols Publishers, 1998. http://dx.doi.org/10.1484/m.tmt-eb.4.00027.
Повний текст джерелаStrathausen, Roger. "Up and Down." In Leading When You’re Not the Boss, 113–17. Berkeley, CA: Apress, 2015. http://dx.doi.org/10.1007/978-1-4842-1748-1_9.
Повний текст джерелаMidgley, Mary. "Up and Down." In Beast and Man, 145–64. 2nd ed. London: Routledge, 2021. http://dx.doi.org/10.4324/9780203380192-10.
Повний текст джерелаDevonshire-Ellis, Chris, Andy Scott, and Sam Woollard. "WFOE Conversions and Closures." In Setting Up Wholly Foreign Owned Enterprises in China, 49–60. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-15540-6_3.
Повний текст джерелаDevonshire-Ellis, Chris, Andy Scott, and Sam Woollard. "Joint Venture Conversions and Closures." In Setting Up Joint Ventures in China, 107–12. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-16040-0_6.
Повний текст джерелаAuzel, F. "Up-conversions in RE-doped Solids." In Spectroscopic Properties of Rare Earths in Optical Materials, 266–319. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/3-540-28209-2_5.
Повний текст джерелаBerg Hansen, Kim. "Up-and-Down Patterns." In Practical Oracle SQL, 325–49. Berkeley, CA: Apress, 2020. http://dx.doi.org/10.1007/978-1-4842-5617-6_17.
Повний текст джерелаТези доповідей конференцій з теми "Down and Up conversions"
Jaiyen, Jakaphan, Alongkom Namahoot, and Prayoot Akkaraekthalin. "A 2.4-2.5 GHz Singly Balanced Diode Mixer for Up and Down Conversions." In 2006 International Symposium on Communications and Information Technologies. IEEE, 2006. http://dx.doi.org/10.1109/iscit.2006.339951.
Повний текст джерелаTermos, Hassan, Thierry Rampone, Ammar Sharaiha, Ali Hamie, and Ali Alaeddine. "OFDM signal up and down frequency conversions by a sampling method using a SOA-MZI." In 2017 29th International Conference on Microelectronics (ICM). IEEE, 2017. http://dx.doi.org/10.1109/icm.2017.8268822.
Повний текст джерелаKwiat, P. G. "The Conversion Revolution: Down, Up and Sideways." In QUANTUM COMMUNICATION, MEASUREMENT AND COMPUTING. AIP, 2004. http://dx.doi.org/10.1063/1.1834448.
Повний текст джерелаRichards, Bryce S., Aruna Ivaturi, Sean K. W. MacDougall, and Jose Marques-Hueso. "Up- and down-conversion materials for photovoltaic devices." In SPIE Photonics Europe, edited by Ralf Wehrspohn and Andreas Gombert. SPIE, 2012. http://dx.doi.org/10.1117/12.923298.
Повний текст джерелаKwiat, Paul, Joseph Altepeter, Evan Jeffrey, Nicholas Peters, and Aaron VanDevender. "Up-, down- and sideways-conversion for quantum information." In International Quantum Electronics Conference. Washington, D.C.: OSA, 2004. http://dx.doi.org/10.1364/iqec.2004.itha1.
Повний текст джерелаHartmann, Paul, Peter Pachler, Elisabeth L. Payrer, and Stefan Tasch. "Up and down: color conversion for solid-state lighting." In SPIE OPTO: Integrated Optoelectronic Devices, edited by Klaus P. Streubel, Heonsu Jeon, and Li-Wei Tu. SPIE, 2009. http://dx.doi.org/10.1117/12.809033.
Повний текст джерелаLi, Guanlin, Hongwen Li, Xiyou Chen, Mahshid Amirabadi, Xianmin Mu, and Brad Lehman. "Quadratic Step-up/down Converters with Wider Conversion Ratio." In 2022 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE, 2022. http://dx.doi.org/10.1109/ecce50734.2022.9947507.
Повний текст джерелаSong, Ming, Weiwei Guan, Guodong Liu, Meichen Yan, and Shigang Zhou. "Design of the Ka-Band Up-Down Conversion Module." In 2021 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP). IEEE, 2021. http://dx.doi.org/10.1109/imws-amp53428.2021.9644026.
Повний текст джерелаVerma, Deepak, Tor O. Saetre, and Ole-Morten Midtgard. "Review on up/down conversion materials for solar cell application." In 2012 IEEE 38th Photovoltaic Specialists Conference (PVSC). IEEE, 2012. http://dx.doi.org/10.1109/pvsc.2012.6318129.
Повний текст джерелаKou, Xiaobing, Facheng Zhang, Liang Li, and Guanghua Yang. "An X-band Up-down Conversion System with Variable Bandwidth." In 2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT). IEEE, 2022. http://dx.doi.org/10.1109/icmmt55580.2022.10022704.
Повний текст джерелаЗвіти організацій з теми "Down and Up conversions"
Richards, Whitman. Top-Down Influences on Bottom-Up Processing. Fort Belvoir, VA: Defense Technical Information Center, January 1993. http://dx.doi.org/10.21236/ada261514.
Повний текст джерелаOrdoñez, Guillermo, and Facundo Piguillem. Savings and Saving Rates: Up or Down? Cambridge, MA: National Bureau of Economic Research, May 2020. http://dx.doi.org/10.3386/w27179.
Повний текст джерелаRichards, Whitman. Top-Down Influences on Bottom-Up Processing. Fort Belvoir, VA: Defense Technical Information Center, May 1991. http://dx.doi.org/10.21236/ada238235.
Повний текст джерелаLogan, John, Andrew Foster, Hongwei Xu, and Wenquan Zhang. Income Segregation: Up or Down, and for Whom? Cambridge, MA: National Bureau of Economic Research, April 2020. http://dx.doi.org/10.3386/w27045.
Повний текст джерелаKristanto, Gabriel Andari. Garbage went up as homes were locked down. Edited by Ria Ernunsari, Sarah Bailey, and Sara Phillips. Monash University, June 2022. http://dx.doi.org/10.54377/12bc-6537.
Повний текст джерелаDoerry, Armin. Coherent Processing of Up/Down Linear Frequency Modulated Chirps. Office of Scientific and Technical Information (OSTI), November 2020. http://dx.doi.org/10.2172/1716574.
Повний текст джерелаMumm, Jared M., Joseph D. Stock, Samaneh Azarpajouh, Amber Howell, Anna K. Johnson, Kenneth J. Stalder, and Julia A. Calderón Díaz. Depiction of Lying Down and Standing up Sequences in Multiparous Sows. Ames (Iowa): Iowa State University, January 2017. http://dx.doi.org/10.31274/ans_air-180814-346.
Повний текст джерелаJohnson, Paul, and Christopher Giles. Taxes down, taxes up: the effects of a decade of tax changes. Institute for Fiscal Studies, February 1994. http://dx.doi.org/10.1920/co.ifs.1994.0041.
Повний текст джерелаSammy Andrzejaczek, Sammy Andrzejaczek. Why do tiger sharks swim up and down the water column? – An up-close view of their vertical movements. Experiment, May 2016. http://dx.doi.org/10.18258/7190.
Повний текст джерелаBenzarti, Youssef, Dorian Carloni, Jarkko Harju, and Tuomas Kosonen. What Goes Up May Not Come Down: Asymmetric Incidence of Value-Added Taxes. Cambridge, MA: National Bureau of Economic Research, September 2017. http://dx.doi.org/10.3386/w23849.
Повний текст джерела