Results 61 to 70 of about 1,086,608 (306)

Broadband Microwave Absorption by Logarithmic Spiral Metasurface [PDF]

Scientific Reports, 2019
AbstractMetamaterials have enabled the design of electromagnetic wave absorbers with unprecedented performance. Conventional metamaterial absorbers usually employ multiple structure components in one unit cell to achieve broadband absorption. Here, a simple metasurface microwave absorber is proposed that has one metal-backed logarithmic spiral ...
Shubo Wang, Bo Hou, Che Ting Chan
openaire   +4 more sources

Validation of Aura Microwave Limb Sounder O-3 and CO observations in the upper troposphere and lower stratosphere [PDF]

, 2008
Global satellite observations of ozone and carbon monoxide from the Microwave Limb Sounder (MLS) on the EOS Aura spacecraft are discussed with emphasis on those observations in the 215-100 hPa region (the upper troposphere and lower stratosphere).
Perun, V. S., Gao, R. S., Waters, J. W., Wagner, P. A., Fuller, R. A., Loewenstein, M., Diskin, G. S., Cuddy, D. T., Cammas, J. -P., Read, W. G., Drouin, B. J., Jarnot, R. F., Christensen, L. E., Lopez, J.D., Webster, C. R., Thurstans, R. P., Jost, H. J., Cammas, Jean-Pierre, Lambert, A., Li, Q. B., Pumphrey, Hugh, Schwartz, M. J., Livesey, N. J., Filipiak, M. J., Knosp, B. W., Gao, R. -S., Jiang, J. H., Daffer, W. H., Jost, H. -J., Stek, P. C., Sachse, G. W., Avery, M., Jiang, Y. B., Browell, E. V., Cofield, R. E., Snyder, W. V., Froidevaux, L., Santee, M. L., Osterman, G. B., Nedelec, P., Browell, E.-V., Webster, R. C., Filipiak, Mark, Cofield, R.E., Lopez, J. D., Pumphrey, H. C.   +45 more
core   +1 more source

Sulfation‐Tunable Peptide‐Glycosaminoglycan Hydrogels for Hematopoietic Stem and Progenitor Cell Expansion

Advanced Functional Materials, EarlyView.
Co‐assembly of rationally designed glycosaminoglycan‐binding peptides with sulfated glycosaminoglycans yields supramolecular hydrogels with tunable mechanics and matrix‐mediated cytokine retention. The glycosaminoglycans thereby act as cofactors, driving a coil‐to‐β‐sheet transition that triggers gelation.
Shirel Veretnik, Prannoy Seth, Maximilian Fusenig, Jens Friedrichs, Nicole Fertala, Passant Atallah, Uwe Freudenberg, Ayala Lampel, Carsten Werner   +8 more
wiley   +1 more source

Microwave and optical saturable absorption in graphene

Optics Express, 2012
We report on the first experiments on saturable absorption in graphene at microwave frequency band. Almost independent of the incident frequency, microwave absorbance of graphene always decreases with increasing the power and reaches at a constant level for power larger than 80 µW, evidencing the microwave saturable absorption property of graphene ...
Zhiwei, Zheng, Chujun, Zhao, Shunbin, Lu, Yu, Chen, Ying, Li, Han, Zhang, Shuangchun, Wen   +6 more
openaire   +2 more sources

Understanding the polarization signal of spherical particles for microwave limb radiances [PDF]

, 2006
This paper presents a simple conceptual model to explain that even spherical scatterers lead to a polarization difference signal for microwave limb radiances.
S.A. Buehler, Emde, C.,, Teichmann, C.,, Emde, Claudia, C. Teichmann, Emde, C., Teichmann, C., C. Emde, Teichmann, Claas, Buehler, Stefan Alexander, Buehler, Stefan   +10 more
core   +1 more source

Broadband Silicon‐On‐Glass Reflective Dielectric Metasurface for THz Beam Steering in 6G Wireless Networks

Advanced Functional Materials, EarlyView.
A CMOS‐compatible, all‐dielectric Silicon‐on‐Glass reflective metasurface enables low–loss terahertz wavefront control for future 6G wireless communication. Mie‐resonant silicon pillars provide full phase coverage near 500 GHz, achieving experimentally validated single‐, dual‐, and five‐beam steering with sub‐1.5° angular error and less than 3 dB ...
Rithwik Premanand, Yi Ji Tan, Thomas CaiWei Tan, Prakash Pitchappa, Hemanth Kumar Cheemalamarri, A. S. Madhukumar, Ranjan Singh   +6 more
wiley   +1 more source

Microwave Absorption of Barium Borosilicate, Zinc Borate, Fe-Doped Alumino-Phosphate Glasses and Its Raw Materials

Technologies, 2015
This study presents microwave absorption of raw materials used in barium borosilicate, Fe-doped alumina phosphate and zinc borate glass. Microwave absorption was investigated for the raw materials SiO2, Na2CO3, BaCO3, BPO4, Al(PO3)3, Mg(PO3)2, Al(OH)3 ...
Ashis Kumar Mandal, Ranjan Sen
doaj   +1 more source

Broadening microwave absorption via a multi-domain structure [PDF]

, 2017
Materials with a high saturation magnetization have gained increasing attention in the field of microwave absorption; therefore, the magnetization value depends on the magnetic configuration inside them. However, the broad-band absorption in the range of
Liu, Y, Ahmed A. Elzatahry, Dahyan, Daifallah Al., Che, R, Liu, Z, Che, Renchao, Elzatahry, Ahmed A., Yong Wei, Zhao, D, Dongyuan Zhao, Dahyan, DA, Liu, Yupu, Zhao, Dongyuan, Zhengwang Liu, Wei, Yong, Yupu Liu, Daifallah Al. Dahyan, Renchao Che, Liu, Zhengwang, Elzatahry, AA, Wei, Y   +20 more
core   +1 more source

Spin Dynamics in the van der Waals Ferromagnet CrTe2 Engineered by Niobium Doping

Advanced Functional Materials, EarlyView.
Spin‐dynamic magnetic properties of van der Waals (vdW) ferromagnet 1T‐CrTe2 are tuned via niobium (Nb) as Cr1‐xNbxTe2 (x = 0–0.2). Nb doping enables wide‐band tuning of the resonance frequency from 40 GHz down to the few‐GHz regime, accompanied by a moderate increase in the Gilbert damping from ∼0.066 to ∼0.14.
Dhan Raj Lawati, Prem Bahadur Karki, Jitender Kumar, Karishma Prasad, Mohamed A. Elekhtiar, Kai Huang, Bibek Tiwari, Suvechhya Lamichhane, Rupak Timalsina, Zane Hubble, Ayodimeji E. Aregbesola, John Watt, Sy‐Hwang Liou, Evgeny Y. Tsymbal, Jian Wang, Kapildeb Ambal, Abdelghani Laraoui   +16 more
wiley   +1 more source

Superconducting Microwave Resonator Arrays for Submillimeter/Far-infrared Imaging [PDF]

, 2012
Superconducting microwave resonators have the potential to revolutionize submillimeter and far-infrared astronomy, and with it our understanding of the universe.
Noroozian, Omid
core   +1 more source