Machine Learning Customized Novel Material for Energy-Efficient 4D Printing.

Existing commercial powders for laser additive manufacturing (LAM) are designed for traditional manufacturing methods requiring post heat treatments (PHT). LAM's unique cyclic thermal history induces intrinsic heat treatment (IHT) on materials during deposition, which offers an opportunity to develop LAM-customized new materials. This work customized a novel Fe-Ni-Ti-Al maraging steel assisted by machine learning to leverage the IHT effect for in situ forming massive precipitates during LAM without PHT.

Carbon dioxide sequestration accompanied by bioenergy generation using a bubbling-type photosynthetic algae microbial fuel cell.

This study developed a bubbling-type photosynthetic algae microbial fuel cell (B-PAMFC) to treat synthetic wastewater and capture CO using Chlorella vulgaris with simultaneous power production. The performance of B-PAMFC in CO fixation and bioenergy production was compared with the photosynthetic algae microbial fuel cell (PAMFC) and bubbling photobioreactor. Different nitrogen sources for C.

Enhancement of CO biofixation and bioenergy generation using a novel airlift type photosynthetic microbial fuel cell.

This study developed a novel airlift type photosynthetic microbial fuel cell (AL-PMFC) using Chlorella vulgaris to enhance the CO biofixation and bioenergy (bioelectricity and biodiesel) generation. The performances of AL-PMFC in CO fixation rate, lipid accumulation and power output were investigated and compared with a bubbling-type photosynthetic microbial fuel cell (B-PMFC). Due to the enhanced mass transfer, the CO fixation rate of AL-PMFC reached 835.

Microbial fuel cell (MFC) power performance improvement through enhanced microbial electrogenicity.

Within the past 5 years, tremendous advances have been made to maximize the performance of microbial fuel cells (MFCs) for both "clean" bioenergy production and bioremediation. Most research efforts have focused on parameters including (i) optimizing reactor configuration, (ii) electrode construction, (iii) addition of redox-active, electron donating mediators, (iv) biofilm acclimation and feed nutrient adjustment, as well as (v) other parameters that contribute to enhanced MFC performance. To date, tremendous advances have been made, but further improvements are needed for MFCs to be economically practical.

Selective laser melting of high-performance pure tungsten: parameter design, densification behavior and mechanical properties.

Selective laser melting (SLM) additive manufacturing of pure tungsten encounters nearly all intractable difficulties of SLM metals fields due to its intrinsic properties. The key factors, including powder characteristics, layer thickness, and laser parameters of SLM high density tungsten are elucidated and discussed in detail. The main parameters were designed from theoretical calculations prior to the SLM process and experimentally optimized.