Viitteet 1-10 / 81
Effect of Shot Peening Parameters to Residual Stress Proﬁles and Barkhausen Noise
The production of gear components includes numerous manufacturing operations which are carried out to ensure proper surface characteristics of components to deal with wear and fatigue. Surface shot peening is one way to ...
Fabrication of ultrathin multilayered superomniphobic nanocoatings by liquid flame spray, atomic layer deposition, and silanization
Superomniphobic, i.e. liquid-repellent, surfaces have been an interesting area of research during recent years due to their various potential applications. However, producing such surfaces, especially on hard and resilient ...
Improved Network Coverage with Adaptive Navigation of mmWave-based Drone-Cells
The use of drone-cells in 5G wireless systems is a topic of ongoing discussions in the 3GPP standardization community. A major advantage of employing drones is that they can dynamically and timely improve the capacity and ...
5G New Radio Base-Station Sensitivity and Performance
In this paper, we address and analyze the receiver reference sensitivity requirements for the 5G New Radio (NR) wireless communications systems, which relate to the SNR requirements at the base station to reach 95 % of the ...
Time-frequency masking strategies for single-channel low-latency speech enhancement using neural networks
This paper presents a low-latency neural network based speech enhancement system. Low-latency operation is critical for speech communication applications. The system uses the time-frequency (TF) masking approach to retain ...
Microgrids as part of electrical energy system - Pricing scheme for network tariff of DSO
(IEEE COMPUTER SOCIETY PRESS, 2018-09-20)
In the Smart Grid environment, one novel concept is the microgrid, which can be either a very small entity or a larger one. For example, the microgrid can consists of resources of an individual small customer or of several ...
Beam-based Device Positioning in mmWave 5G Systems under Orientation Uncertainties
High-accuracy positioning based on angles from multiple base-stations (BSs) requires precise knowledge of the BSs’ orientation. Installation errors are bound to occur in practice, and any mismatch between the actual and ...
High power picosecond MOPA with anisotropic ytterbium-doped tapered double-clad fiber
(SPIE-INT SOC OPTICAL ENGINEERING, 2018)
Generation of ultrashort pulses with high average power and moderately high pulse energy generally requires a mode-locked laser followed by several fiber amplifiers in a master-oscillator power-amplifier configuration. ...
Low-Frequency Nonuniformity Correction in Static Thermal Images
A frequent issue in uncooled thermal cameras is the presence of a low-frequency shading or non-uniformity (NU), where slowly spatially varying changes in intensity corrupt the radiometric image. Usual correction methods ...
Wireless Backhauling for Energy Harvesting Ultra-Dense Networks
Due to non-negligible amount of energy consumption of state-of-the-art small cells at idle mode, energy efficiency of the overall network may decrease with densification. Therefore, energy efficiency in ultra-dense networks ...