Publications by authors named "Weijin Zheng"
Article Synopsis
- - The study explored the potential of using a specific nitrogen fixation gene cluster (VNnif) from certain microorganisms as an alternative to chemical fertilizers, focusing on its impact on plant growth.
- - Researchers improved the nitrogenase activity of the plant growth-promoting rhizobacteria CHA0, achieving enhanced efficiency through genetic modifications, resulting in 48.16 nmol CH/mg/h.
- - The engineered bacteria CHA0-PVNnif demonstrated positive effects on the growth of specific plants, contributing to the understanding and application of microbial solutions for sustainable agriculture.
Background: Myocardial ischemia/reperfusion injury (MIRI) usually induces serious health problems.
Objectives: This study attempted to explore protective effects of (-)-epigallocatechin-3-gallate (EGCG) on MIRI and the associated mechanism.
Material And Methods: Ischemia/reperfusion of an isolated rat heart (I/R model) and the MIRI model were used in this study.
Background: Several randomized controlled trials (RCTs) have been investigated the benefits of soluble guanylate cyclase (sGC) stimulators in the treatment of heart failure, but a comprehensive evaluation is lacking. We performed a meta-analysis to evaluate the efficacy and safety of oral sGC stimulators (vericiguat and riociguat) in patients with heart failure.
Methods: Studies were searched and screened in PubMed, Embase, and Cochrane Library.
We study the surface plasmon modes in a silver double-nanowire system by employing the eigenmode analysis approach based on the finite element method. Calculated dispersion relations, surface charge distributions, field patterns and propagation lengths of ten lowest energy plasmon modes in the system are presented. These ten modes are categorized into three groups because they are found to originate from the monopole-monopole, dipole-dipole and quadrupole-quadrupole hybridizations between the two wires, respectively.
View Article and Find Full Text PDFWe propose to use double negative (DNG) metamaterial slabs to build effective super-absorbers and perfect nanodetectors for single divergent sources. We demonstrate by numerical simulations that an absorbing nanoparticle properly placed inside a DNG slab back-covered with a perfect electric conductor or perfect magnetic conductor mirror can absorb up to 100% radiation energy of a single dipole source placed outside the slab. Furthermore, we also show that even the simple DNG slab without any absorbing nanoparticle could be used as a perfect absorber for both plane and divergent beams.
View Article and Find Full Text PDF