Integrated CO₂capture and selective conversion to syngas using transition-metal-free Na/Al₂O₃dual-function material

Integrated CO2 capture and conversion (ICCC) using dual-function materials (DFMs) is one of the key technologies for addressing critical global environmental and energy issues. DFMs generally consist of alkali or alkaline earth metals for CO2 capture and transition metal catalysts for CO2 conversion. In this study, we studied the ICCC to CO...

Direct and continuous conversion of flue gas CO₂ into green fuels using dual function materials in a circulating fluidized bed system

Carbon capture and utilization (CCU) technologies, such as CO₂ methanation, generally require energy-intensive CO₂ capture and separation processes prior to catalytic CO₂ conversion. In contrast, integrated CO₂ capture and reduction (CCR) technologies that use dual function materials (DFM) can...

Optimization of negative stage bias potential for faster imaging in large-scale electron microscopy

Large-scale electron microscopy (EM) allows analysis of both tissues and macromolecules in a semi-automated manner, but acquisition rate forms a bottleneck. We reasoned that a negative bias potential may be used to enhance signal collection, allowing shorter dwell times and thus increasing imaging speed. Negative bias potential has previously...

Shunt Compensation Design of EHV Double-Circuit Mixed OHL-Cable Connections

This paper deals with the shunt compensation design of long 380kV-50Hz XLPE cables by simulating a double-circuit partially cabled connection with the transmission length of 80km in the Dutch transmission system. The proposed procedure for shunt compensation sizing is fully elaborated in this paper. Four sizing criteria are used to find the...

An examination of Kolmogorov's refined similarity hypotheses for active scalar in compressible turbulence

Using direct numerical simulations of isotropic compressible turbulence driven by large-scale solenoidal force (up to 10243 grid points), we examine the Kolmogorov’s refined similarity hypotheses (RSH) as applied to active scalar, i.e. temperature, with Prandtl number of order one. The three-dimensional compressible Navier-Stokes equations are...

Automated Negotiation Based on Sparse Pseudo-Input Gaussian Processes (abstract)

This paper deals with a prominent type of complex negotiations. We propose a novel negotiation strategy called Dragon which employs sparse pseudo-input Gaussian processes (SPGPs) to model efficiently the behavior of the negotiating opponents. The experimental results provided in this paper show that Dragon outperforms the state-of-the-art...

Modelling and Forecasting in the Dry Bulk Shipping Market

This dissertation proposes strategies not only for modelling price behavior in the dry bulk market, but also for modelling relationships between economic and technical variables of dry bulk ships, by using modern time series approaches, Monte Carlo simulation and other economic techniques. The time series modelling techniques, described...

Simulation-based optimization of ship design for dry bulk vessels

Surface-Micromachined Thermal Conductivity Gas Sensors For Hydrogen Detection

Operation-based optimization of ship design for dry bulk vessels

Technical changes and impacts on economic performance of dry bulk vessels

Design and Realization of a Digital Baseband Subsystem of Wakeup Receiver for Wireless Sensor Networks

In the development of wireless sensor networks, the lifetime of a sensor node is always a key design consideration. Since the battery in a sensor node can usually not be recharged or changed, power management is an effective way to extend the network lifetime. The wireless transceiver, also regarded as the ‘main radio’, is a relatively power...

Geomorphological analysis of a beach and sandbar system