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In this paper, we reveal a fundamental property of block ciphers: There can exist linear approximations such that their biases ε are deterministically invariant under key difference. This behaviour is highly unlikely to occur in idealized ciphers but persists, for instance, in 5-round AES. Interestingly, the property of key difference invariant bias is(More)
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Maximizing the optical absorption of one-dimensional Si nanostructure arrays (1DSiNSAs) is desirable for excellent performance of 1DSiNSA-based optoelectronic devices. However, a quite large surface-to-volume ratio and enhanced surface roughness are usually produced by modulation of the morphology of the 1DSiNSAs prepared in a top-down method to improve(More)
1. Extracellular ATP is a potent signaling molecule that modulates a myriad of cellular functions through the activation of P2 purinergic receptors and is cytotoxic to a variety of cells at higher concentrations. The mechanism of ATP-elicited cytotoxicity is not fully understood. In this study, we investigated the effect of extracellular ATP on the human(More)
In the present study, we explored the association of serum angiopoietin-like protein 2 (ANGPTL2) levels with insulin sensitivity and serum epinephrine levels in metabolically healthy but obese (MHO) subjects. We also investigated the effects of epinephrine on ANGPTL2 expression in adipocytes in vitro. We examined the metabolic characteristics and serum(More)
  • Long Wen
  • 2009 Second International Workshop on Knowledge…
  • 2009
Manufacturing Execution System (MES) links plan management and workshop control in an enterprise, which is an integrative management and control system of workshop production oriented to manufacturing process. To overcome the difficulties of traditional components retrieval method, retrieval of MES components based on ontology is put forward to prompt(More)
  • L Wen
  • Molecular biotechnology
  • 2001
The use of automated fluorescent DNA sequencer systems and PCR-based DNA sequencing methods plays an important role in the actual effort to improve the efficiency of large-scale DNA analysis. While dideoxy-terminators labeled with energy-transfer dyes (BigDyes) provide the most versatile method of automated DNA sequencing, premature terminations result in a(More)
Patients with Parkinson's disease have symptom of walking disorders which can be alleviated by surgery. By evaluating gait kinematics, the effect of medical treatment can be quantitatively assessed. In this paper, a method using image markers based on rigid body was introduced to set markers on anatomy key points of human lower limbs, which efficiently(More)