Results 161 to 170 of about 31,794 (223)

Comparison of commercial 1Tx32Rx vs. 8Tx32Rx head coils for routine 7T neuroimaging. [PDF]

Front Neuroimaging
Graf C, Ding B, Rua C, Klodowski K, Rodgers CT.   +4 more
europepmc   +1 more source

Unveiling Dipolar Interaction-Driven Magnetic Field Inhomogeneities in T₂ MRI Contrast Agents. [PDF]

Adv Sci (Weinh)
García-Acevedo P, Piñeiro Y, Gallo J, Ramos-Cabrer P, Iglesias-Rey R, Rivas J, Bañobre-López M.   +6 more
europepmc   +1 more source

Assessment of UHF Frequency Range for Failure Classification in Power Transformers. [PDF]

Sensors (Basel)
Schiewaldt K, de Castro BA, Ardila-Rey JA, Franchin MN, Andreoli AL, Tenbohlen S.   +5 more
europepmc   +1 more source

Redox-Switchable Single-Atom Catalyst Enables Efficient Aqueous Hydroxymethylfurfural Oxidation. [PDF]

ACS Catal
Advani JH, Panáček D, Langer P, Plachá D, Zhao E, Xi S, Chen Z, Jagadeesh RV, Fornasiero P, Zoppellaro G, Bakandritsos A, Zbořil R.   +11 more
europepmc   +1 more source

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Uhf to Ka band upconverter

International Journal of Infrared and Millimeter Waves, 1994
A balanced upconverter circuit has been developed in planar transmission line configuration using NEC GaAs beam lead Schottky barrier diodes. RF power output of +1.6 dBm SSB is obtained at Ka-band when up converter is driven by +17 dBm IF and +20 dBm LO signal.
Susheel K. Verma, Girja Shankar, Deepak Singh   +2 more
openaire   +1 more source

Uhf band high‐power mosfet

Electronics and Communications in Japan (Part II: Electronics), 1990
AbstractDevelopment of a high‐frequency, high‐power transistor is expected for communication and broadcast usages. In recognition of superior high‐frequency performance and thermal stability of the lateral power MOSFET, the authors have attempted to improve power and frequency characteristics. By means of the self‐align method using high melting point,
Mineo Katsueda, Takeaki Okabe, Ichiro Takei, Yuzuru Fujita   +3 more
openaire   +1 more source

Octave-Bandwidth UHF/L-Band Circulator

IEEE Transactions on Microwave Theory and Techniques, 1961
Test data are presented on two aluminum-substituted yttrium-iron-garnet (YIG) materials that have low-saturation magnetizations that permit the extension of ferrite devices well into the UHF/VHF region. In particular, one composition has a saturation magnetization of 300 gauss and a line width of 50 oersteds. Measurements are presented that compare the
B. Peyton, B. Kaplan, F. Arams
openaire   +1 more source

Dual band UHF RFID antenna

2012 20th Telecommunications Forum (TELFOR), 2012
Radio Frequency Identification (RFID) systems have been extensively used in many important applications in recent years. The band allocated to RFID technology in the UHF band differs from continent to continent but there are two main, 800MHz used in Europe and the some Asian countries while in the USA, Japan and Australia they use 900 MHz frequency ...
Suvad Selman, Nesibe Merve Demir, Moamer Hasanovic   +2 more
openaire   +1 more source

Matched band-pass UHF filter

2016 13th International Scientific-Technical Conference on Actual Problems of Electronics Instrument Engineering (APEIE), 2016
The band-pass filter is considered. The filter has wide pass band and good matching not only in the pass band but also in the rejection band. The filter has steep band edges. The filtration quality of the filter corresponds to the quality of a bridge filter.
Yuriy V. Vostryakov, Mikhail G. Rubanovich, Aleksey A. Stolyarenko, Vladimir A. Khrustalev, Denis V. Vagin, Aleksander S. Mitkov, Aleksander S. Polovnikov   +6 more
openaire   +1 more source