Publications by authors named "Zhixuan Shen"
Experimental Research on a New Mini-Channel Transcritical CO Heat Pump Gas Cooler.
Micromachines (Basel)
May 2023
Article Synopsis
- The paper investigates a new spiral plate mini-channel gas cooler designed for supercritical CO, focusing on its heat transfer and pressure drop characteristics.
- Increasing the mass flux of CO and inlet water temperature improves the overall heat transfer coefficient, with vertical orientation yielding better results than horizontal.
- A Matlab program confirmed the accuracy of heat transfer correlations based on Zhang's method, providing valuable insights for future gas cooler designs.
Phosphoribulokinase (PrkA) and ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) have been proposed to create a heterologous Rubisco-based engineered pathway in for in situ CO recycling. While the feasibility of a Rubisco-based engineered pathway has been shown, heterologous expressions of PrkA and Rubisco also induced physiological responses in that may compete with CO recycling. In this study, the metabolic shifts caused by PrkA and Rubisco were investigated in recombinant strains where and genes (encodes phosphoenolpyruvate carboxylase and phosphate acetyltransferase, respectively) were deleted from MZLF ( BL21(DE3) Δ, Δ Δ).
View Article and Find Full Text PDFRubisco-based engineered Escherichia coli MZLFB (E. coli BL21(DE3) Δzwf, Δldh, Δfrd) containing heterologous phosphoribulokinase (Prk) and Ribulose-1,5- bisphosphate carboxylase/oxygenase (Rubisco) was constructed for the mixotrophic growth. However, in situ CO recycling was hindered by clogs of pyruvate during glucose metabolism, which consequently resulted in an insufficient regeneration of NAD through the pflB-mediated ethanol production.
View Article and Find Full Text PDFArticle Synopsis
- - SnSe shows great potential as a thermoelectric material but lacks a full understanding of its electronic structure and self-hole-doping mechanism.
- - Researchers used angle-resolved photoemission spectroscopy to reveal a unique valence band shape in SnSe and found that p-type doping is influenced by local phase segregation and charge transfer.
- - The study observed quantum transport phenomena and a complex 3D Fermi surface in p-SnSe, suggesting that manipulating defects could enhance the material's thermoelectric performance.