A new class of atomicity, namely contract atomicity is presented. A newtechnical strategy based on convertible signature and two-phase commitment is proposed forimplementing atomicity of electronic contract protocol. ...A new class of atomicity, namely contract atomicity is presented. A newtechnical strategy based on convertible signature and two-phase commitment is proposed forimplementing atomicity of electronic contract protocol. A new atomic contract signing protocol isgiven out by using ElGam-al-like convertible undeniable signature and commitment of conversion key,and another new atomic contract signing protocol is brought forward by using RSA-based convertibleundeniable signature scheme and commitment ofconversion key. These two new protocols are proved tobe of atomicity, fairness, prnacy- non-repudiation.展开更多
This paper took the buyer-biased electronic market as an example, where multiple suppliers selling short-life-cycle products are bidding for an order from a powerful buyer with stochastic customer demand. It used a si...This paper took the buyer-biased electronic market as an example, where multiple suppliers selling short-life-cycle products are bidding for an order from a powerful buyer with stochastic customer demand. It used a single period newsvendor model to analyze the decision of supplied and buyers to do or not do business online. The results suggest that lack of Incentive is the key factor of B2B electronic markets failure. At the same time, it designed a revenue sharing contract to coordinate the E-supply chain in order to prevent failure of E-market.展开更多
The electronic and magnetic properties of small IrN clusters (N=5, 6, 9, 13, and 19 ) are studied by using the discrete-variational local-spin-density-functional method. The equilibrium bond length in the chosen geome...The electronic and magnetic properties of small IrN clusters (N=5, 6, 9, 13, and 19 ) are studied by using the discrete-variational local-spin-density-functional method. The equilibrium bond length in the chosen geometry for IrN clusters are determined and show bond contraction compared with the bulk interatomic spacing. The clusters with magnetic ground state have ferromagnetic interaction and their average magnetic moment per atom has a complex size dependence. At last, the reactivity of IrN clusters toward H2, N2 and CO molecules is predicted.展开更多
文摘A new class of atomicity, namely contract atomicity is presented. A newtechnical strategy based on convertible signature and two-phase commitment is proposed forimplementing atomicity of electronic contract protocol. A new atomic contract signing protocol isgiven out by using ElGam-al-like convertible undeniable signature and commitment of conversion key,and another new atomic contract signing protocol is brought forward by using RSA-based convertibleundeniable signature scheme and commitment ofconversion key. These two new protocols are proved tobe of atomicity, fairness, prnacy- non-repudiation.
文摘This paper took the buyer-biased electronic market as an example, where multiple suppliers selling short-life-cycle products are bidding for an order from a powerful buyer with stochastic customer demand. It used a single period newsvendor model to analyze the decision of supplied and buyers to do or not do business online. The results suggest that lack of Incentive is the key factor of B2B electronic markets failure. At the same time, it designed a revenue sharing contract to coordinate the E-supply chain in order to prevent failure of E-market.
基金Supported by theYouth Natural Science Foundation of Educational Bureau of Sichuan Province (No.212-114879)
文摘The electronic and magnetic properties of small IrN clusters (N=5, 6, 9, 13, and 19 ) are studied by using the discrete-variational local-spin-density-functional method. The equilibrium bond length in the chosen geometry for IrN clusters are determined and show bond contraction compared with the bulk interatomic spacing. The clusters with magnetic ground state have ferromagnetic interaction and their average magnetic moment per atom has a complex size dependence. At last, the reactivity of IrN clusters toward H2, N2 and CO molecules is predicted.