30 research outputs found
Record Maximum Oscillation Frequency in C-face Epitaxial Graphene Transistors
The maximum oscillation frequency (fmax) quantifies the practical upper bound
for useful circuit operation. We report here an fmax of 70 GHz in transistors
using epitaxial graphene grown on the C-face of SiC. This is a significant
improvement over Si-face epitaxial graphene used in the prior high frequency
transistor studies, exemplifying the superior electronics potential of C-face
epitaxial graphene. Careful transistor design using a high {\kappa} dielectric
T-gate and self-aligned contacts, further contributed to the record-breaking
fmax
Resonance method of measuring shear viscoelastic properties of liquid media based on excitation of torsional oscillations in tubes
Ethanol and dimethyl ether steam reforming on Rh/Al2O3 catalysts for high-temperature fuel-cell feeds
ECOLOGICAL AND MICROBIOLOGICAL EXAMINATION OF TERRITORIES NON-WELFARE FOR ANTHRAX IN THE REPUBLIC OF BURYATIA
Aim. Analysis of results of ecological and microbiological examination of territories nonwelfare for anthrax in territories of Barguzinsky and Kurumkansky districts of the Republic of Buryatia for justification of prophylaxis measures. Materials and methods. Space photographs were used and area and landscape signs of cattle grave sites were established. 174 samples of soil and 6 samples of bone remains of agricultural animals were obtained and studied. Results. Examination of 15 objects in 12 non-welfare for anthrax stationary points of the Republic of Buryatia was carried out in August 2014. A novel approach to detection of abandoned cattle grave sites, where DNA of Bacillus anthracis had been detected in samples, was developed and proposed. Conclusion. Ecological properties of soils 2 districts of the Republic facilitate prolonged conservation of B.anthracis in the environment. Measures of sanitary clean-up of non-welfare territories, utilization of biological waste and decision on legal status of abandoned objects are recommended