Entangling an unknown qubit with one type of reference state is generally impossible. We introduce a new class of states called zero sum amplitude (ZSA) multipartite, pure entangled states for qubits and study their salient features. Using shared-ZSA state, local operation and classical communication we give a protocol for creating multipartite entangled states of an unknown quantum state with ...

This paper describes work that has investigated the usability of handwriting recognition technology for writing with children. The results show that for the age group considered, writing at the tablet was quite efficient, and children were able to write reasonable stories. Some of the key usability problems with the handwriting recognition technology are described and a discussion of possible f...

Spider silks are among the strongest and toughest known materials, but investigation of these remarkable properties has been confined largely to orb-weaving spiders. We investigated the mechanical performance of silk from the cobweb-weaving spider Latrodectus hesperus. Both silk from the scaffolding region of the web and sticky gumfooted capture lines had material properties similar to the majo...

When the supply and demand of commodities are out equilibrium, dynamic changes in mainly manifested fluctuation commodity prices change price will drive demand. This paper proposes a method for constructing three-dimensional cobweb economic model using “predator-prey” theory. Firstly, based on intrinsic driving relationships among supply, price, demand, differential pulse when productivity incr...