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Improved nanocrystal formation, quantum confinement and carrier transport properties of doped Si quantum dot superlattices for third generation photovoltaics
An all-Si tandem solar cell has the potential to achieve high conversion efficiency at low cost. However, the selection and synthesis of candidate material remain challenging. In this work, we show… Expand
Quantitative microbial risk assessment and its applications in small water systems: A review.
- M. A. Hamouda, X. Jin, Heli Xu, F. Chen
- Environmental Science, Medicine
- The Science of the total environment
- 15 December 2018
Quantitative microbial risk assessment (QMRA) has been mainstreamed in many large municipal water systems as part of a paradigm shift in the drinking water industry towards water safety planning and… Expand
Melaminivora alkalimesophila gen. nov., sp. nov., a melamine-degrading betaproteobacterium isolated from a melamine-producing factory.
- H. Wang, J. Li, A. Hu, D. Qin, Heli Xu, C. Yu
- Biology, Medicine
- International journal of systematic and…
- 1 June 2014
A taxonomic study was carried out on strain CY1(T), which is a novel bacterium isolated from wastewater sludge of a melamine-producing factory in Sanming city, Fujian, China. Strain CY1(T) was shown… Expand
Optical characterisation of silicon nanocrystals embedded in SiO2/Si3N4 hybrid matrix for third generation photovoltaics
- D. Di, Heli Xu, I. Perez-Wurfl, M. Green, G. Conibeer
- Materials Science, Medicine
- Nanoscale research letters
- 3 December 2011
Silicon nanocrystals with an average size of approximately 4 nm dispersed in SiO2/Si3N4 hybrid matrix have been synthesised by magnetron sputtering followed by a high-temperature anneal. To gain… Expand
Research on Security Architecture for Defending Insider Threat
- Hui Wang, Heli Xu, Bibo Lu, Zihao Shen
- Computer Science
- Fifth International Conference on Information…
- 18 August 2009
A common misconception concerning Insider Threat is that the information infrastructure is at considerable risk from technical issues. Expand
Parallel programming in Grid: Using MPI
MPI application models based on grid, theories of grid computing, process of grid parallel dealing, and MPI parallel characteristics in the grid. Expand
Security Risk Governance: A Critical Component to Managing Security Risk
This paper proposes that security risk be managed at the same corporate level and with the same focus as financial risk, regulatory risk, or operational risk. It reviews related corporate governance… Expand
A General Method of Valuing Corporate Capital Structure
We generalize Merton’s approach to value Corporate liabilities to any capital structure Breakdown using binomial trees.