Huafeng Shen

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Ribosome inhibiting proteins, RIPs, are a widespread family of toxic enzymes. Ricin is a plant toxin used as a poison and biological warfare agent; shiga toxin is a homologue expressed by pathogenic strains of E. coli. There is interest in creating effective antidote inhibitors to this class of enzymes. RIPs act by binding and hydrolyzing a specific adenine(More)
The optimization of fermentation medium for alpha-galactosidase production by Aspergillus foetidus ZU-G1 was investigated in shaker flask fermentation. A one-factor-at-a-time experiment was used to screen the preferable nutriment (carbon sources, nitrogen sources, and essential elements) for alpha-galactosidase production. A fractional factorial design was(More)
In this paper, a compact two-dimensional multi-beam antenna fed by two-layer SIW Butler matrix is designed at 30 GHz. This multibeam antenna can generate four beams in two planes. The simulation results demonstrate that the beam directions are (30°, 35°), (115°, 20°), (−75°, 25°), and (−135°,(More)
The aim of this study was to investigate the role of 3-phosphoinositide-dependent protein kinase-1 (PDK1), glycogen synthase kinase-3β (GSK3-β) and phosphatase and tensin homologue deleted on chromosome 10 (PTEN), which are the components of the phosphoinositide 3-kinase (PI3K)/Akt pathway, and expression of S-phase kinase-associated protein 2 (Skp2)(More)
Recent studies have reported that chemically synthesized small duplex RNAs complementary to promoters of target genes can specifically induce gene expression in several cancer cell lines. Such dsRNA, referred to as small activating RNA (saRNA), are involved in the recently described phenomenon called RNA activation (RNAa). Recent findings show that saRNA(More)
In this paper a multi-band loop antenna for 4G-LTE mobile phone application was proposed. The antenna has a compact volume of 60&#x00D7;6&#x00D7;5mm<sup>3</sup> and covering 824&#x2013;960, 1710&#x2013;2530, 3400&#x2013;3800 MHz with over 60% simulated efficiency.
An 8-port planar UWB MIMO antenna is proposed for 5G micro wireless access point applications in this paper. The proposed antenna is formed by integrating three monopole strips with different structures and resonant modes, thereby resulting in a much wider bandwidth to cover UWB high band (5.15&#x2013;10.6 GHz) with S<inf>11</inf> lower than &#x2212;10 dB.(More)
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