Jian-Shu Li

Learn More
Improvement of natamycin production by Streptomyces gilvosporeus ATCC 13326 was performed by recursive protoplast fusion in a genome-shuffling format. After four rounds of genome shuffling, the best producer, GS 4-21, with genetic stability was obtained and its production of natamycin reached 4.69 ± 0.05 g/L in shaking flask after 96 h cultivation, which(More)
We construct the Eisenstein measure in several variables on a quasi-split unitary group, as a first step towards the construction of p-adic L-functions of families of ordinary holomorphic modular forms on unitary groups. The construction is a direct generalization of Katz’ construction of p-adic L-functions for CM fields, and is based on the theory of(More)
The low efficiency of fabrication of ultrahigh molecular weight polyethylene (UHMWPE)-based artificial knee joint implants is a bottleneck problem because of its extremely high melt viscosity. We prepared melt processable UHMWPE (MP-UHMWPE) by addition of 9.8 wt% ultralow molecular weight polyethylene (ULMWPE) as a flow accelerator. More importantly, an(More)
A knotty issue concerning the poor mechanical properties exists in the porogen leaching approach to porous scaffolds, despite its advantage in tuning pore structure. To address this hurdle, solid state extrusion (SSE) combined with porogen leaching was utilized to engineer porous scaffolds of poly(lactic acid) (PLA). Advances introduced by poly(ethylene(More)
geywvords--Fini te element methods, Singularly perturbed problems, Elliptic partial differential equations. 1. I N T R O D U C T I O N In this paper, we will consider a finite element method (FEM) for the singularly perturbed elliptic boundary value problem: L e u = e 2 ( o2u O 2 U ~ + a ( x , y ) u = f ( x , y ) , in fl -(0, 1) x (0, 1), (1) \ Oz 2 + Oy2 )(More)