Results 21 to 30 of about 25,009,725 (329)
Magic of hydrogen spillover: Understanding and application
The hydrogen spillover effect (HSPE) plays an important role in heterogeneous catalysis and hydrogen storage as an interfacial phenomenon, which facilitates the improvement of hydrogen storage properties of porous nanomaterials and indirectly or directly
Haifang Shen +3 more
doaj +1 more source
Janus particles for oil–water separation have attracted widespread attention in recent years. Herein, we prepared a bowl-shaped Janus particle that could rapidly separate oil and water through a thiol–ene click reaction and selective etching.
Xian Qi +3 more
doaj +1 more source
Waste heat recovery is common in high‐temperature water electrolysis production, but the latent heat from the hydrogen–water mixture is not fully utilized, and the electric heater to generate steam consumes much energy.
Zhicong Fang +3 more
doaj +1 more source
A plate heat exchanger (PHE) is a modern, effective type of heat transfer equipment capable of increasing heat recuperation and energy efficiency. For PHEs, enhanced methods of heat transfer intensification can be further applied using the analysis and ...
Olga Arsenyeva +4 more
doaj +1 more source
Gades and the Mediterranean: a Process of Integration [PDF]
The impetus for this paper is to present possible contributions of the Network Theory approach to the analysis of the Roman presence in Turdetania by the end of the 1st millennium BC.
dos Santos Silva, Bruno
core +1 more source
Solid oxide fuel cells (SOFC) have developed to a mature technology, able to achieve electrical efficiencies beyond 60%. This makes them particularly suitable for off-grid applications, where SOFCs can supply both electricity and heat at high efficiency.
Francesco Baldi +4 more
doaj +1 more source
Characterization of a Novel Alginate Lyase from Marine Bacterium Vibrio furnissii H1
Alginate lyases show great potential for industrial and medicinal applications, especially as an attractive biocatalyst for the production of oligosaccharides with special bioactivities.
Xiaoyan Zhu +7 more
doaj +1 more source
PHE (Plate Heat Exchanger) for Condensing Duties: Recent Advances and Future Prospects
Increasing energy usage efficiency requires enhanced heat energy recuperation between process streams in the industry and civic sector with waste heat utilization.
Petro Kapustenko +3 more
doaj +1 more source
SiGe HBTs Optimization for Wireless Power Amplifier Applications
This paper deals with SiGe HBTs optimization for power amplifier applications dedicated to wireless communications. In this work, we investigate the fT-BVCEO tradeoff by various collector optimization schemes such as epilayer thickness and dopant ...
Pierre-Marie Mans +7 more
doaj +1 more source
Fractionally Integrated COGARCH Processes* [PDF]
We construct fractionally integrated continuous-time GARCH models, which capture the observed long range dependence of squared volatility in high-frequency data. Since the usual Molchan-Golosov and Mandelbrot-van-Ness fractional kernels lead to problems in the definition of the model, we resort to moderately long memory processes by choosing a ...
Haug, Stephan +2 more
openaire +3 more sources

