Detecting nighttime inversions in the interior of a Douglas fir canopy

Despite the importance of forests in the water and carbon cycles, accurately measuring their contribution remains challenging, especially at night. During clear-sky nights current models and theories fail, as non-turbulent flows and spatial heterogeneity become more important. One of the standing issues is the ‘decoupling’ of the air masses...

Power Flow Decoupling Controller for Triple Active Bridge Based on Fourier Decomposition of Transformer Currents

This paper proposes a power flows decoupling controller for the triple active bridge converter. The controller is based on a full-order continuous-time model of the TAB converter derived using the generalized average modelling (GAM) technique. GAM uses the Fourier series expansion to decompose the state-space variables into two components,...

Economic Growth and Carbon Emissions: The Road to “Hothouse Earth” is Paved with Good Intentions

De-carbonization to restrict future global warming to 1.5 °C is technically feasible but may impose a “limit” or “planetary boundary” to economic growth, depending on whether or not human society can decouple growth from emissions. In this paper, we assess the viability of decoupling. First, we develop a prognosis of climate-constrained...

Local characteristics and tangency of vector-valued martingales

This paper is devoted to tangent martingales in Banach spaces. We provide the definition of tangency through local characteristics, basic L^p- and ø-estimates, a precise construction of a decoupled tangent martin-gale, new estimates for vector-valued stochastic integrals, and several other claims concerning tangent martingales and...

Analysis and optimal individual pitch control decoupling by inclusion of an azimuth offset in the multiblade coordinate transformation

With the trend of increasing wind turbine rotor diameters, the mitigation of blade fatigue loadings is of special interest to extend the turbine lifetime. Fatigue load reductions can be partly accomplished using individual pitch control (IPC) facilitated by the so-called multiblade coordinate (MBC) transformation. This operation transforms...

H-Shaped Multiple Linear Motor Drive Platform Control System Design Based on an Inverse System Method

Due to its simple mechanical structure and high motion stability, the H-shaped platform has been increasingly widely used in precision measuring, numerical control machining and semiconductor packaging equipment, etc. The H-shaped platform is normally driven by multiple (three) permanent magnet synchronous linear motors. The main challenges for...

Determining Resource Needs of Autonomous Agents in Decoupled Plans

At airports, the turnaround process of aircraft is crucial for a timely and efficient handling of air traffic. During this process, a number of services need to be provided during the time the aircraft is at the gate: e.g., de-boarding, cleaning, catering, fuelling, and boarding. These services are provided by different service providers (agents...