Graphene-sulfur composites with sulfur fractions as high as 87 wt% are prepared using a simple one-pot, scalable method. The graphene envelops the sulfur particles, providing a conductive shrink-wrap for electron transport. These materials are efficient cathodes for Li-S batteries, yielding 93% coulombic efficiency over 50 cycles with good capacity.

Licensing models and license management systems are going through major changes because the traditional shrink-wrapped software way of licensing does not meet the needs of the modern software market. In particular the emergence of new platforms, such as mobile computing and the assumption by software vendors of clients possessing network connected software, will revolutionize how software is li...

We study nonparametric estimation of Kendall’s tau, τ , for bivariate censored data. Previous estimators of τ , proposed by Brown, Hollander and Korwar (1974), Weier and Basu (1980) and Oakes (1982), fail to be consistent when marginals are dependent. Here we express τ as an integral functional of the bivariate survival function and construct a natural estimator via the von Mises functional app...

Storage jamming can degrade real-world activities that share stored data. Storage jamming is not prevented by access controls or cryptographic techniques. Verification to rule out storage jamming logic is impractical for shrink-wrapped software or low-cost custom applications. Detection mechanisms do offer more promise. In this paper, we model storage jamming and a detection mechanism, using Un...

The paper is a broad overview of the South African law on Electronic Contracts (e-contracts). It has a brief introduction to the South African Lex Informatica which covers historical evolution of Internet law on an international platform and how it has impacted on South African Law on negotiation of commercial contracts. Section 2 deals with the South African Common law and how it applied to el...

This paper examines if markets populated by short-horizon investors tend to have the prices come unhooked from their fundamental values or cash flows. For prices to be near the fundamental value in a market populated with short-horizon investors, the investors must induct backward from future cash flows to the present values. We argue that investors’ ability to backward induct depends criticall...

Polyolefins are finding increased popularity in microfluidic applications due to their attractive mechanical, processing, and optical properties. While intricate features are typically realized in these thermoplastics by hot embossing and injection molding, such fabrication approaches are expensive and slow. Here, we apply our shrink-induced approach-first demonstrated with polystyrene 'Shrinky...

Objectives: To evaluate the efficacy of fascia lata graft in hypospadias repair, especially in cases with paucity of subcutaneous dartos pedicle or tunica vaginalis flap, with the aim to avoid the potential complication of urethrocutaneous fistula and hence the resulting