Nowadays, creating a blockchain-based system for supply chain tracing is complex task. This paper defines model, graphical domain specific language, and set of tools aimed at helping experts to create blockchain based systems their chains. Starting from representation the chain, solidity smart contracts implementing related are automatically generated by our framework. Small interventions progr...

The unprecedented advancement of the internet is complementing and even replacing the traditional commerce transactions. While face-to-face merchant agreements and paper-based contracts have always been the mechanism for facilitating business transactions nowadays web contracting is introducing a business environment where web contracts are in digital form, are created in a global electronic ma...

abstract bee venom is a complex mixture of proteins, peptides and low molecular components: proteins (enzymes) :( phospholipase, a2phospholipase b, hyaluronidase α – glucosidase) - , peptides (melittin, apamine mcd peptide,adolapine ,procamine a and b, protease inhibitors)- low molecular components: biogenic amines:( histamine, dopamine and noradrenalin) - pheromones: complex ethers- sugars :( ...

The agricultural goods futures market has recently regained the interest of corporate business, research institutions, and governments. This renewed interest is brought about by the increasing volatility of the prices of agricultural raw materials. In turn, these reflect the shift that has taken place in the European Union’s joint agricultural policy: from price support to income support and to...

♣ ♣ ♣ ♣ Nowadays, many organizations form dynamic partnerships to deal effectively with market requirements. As companies use automated workflow systems to control their processes, a way of linking workflow processes in different organizations is useful in turning the cooperating companies into a seamless operating virtual enterprise. The CrossFlow Esprit project aims at developing information ...

This article aims to study lease and hiring contract in the Iranian-Islamic setting and analyze the asymmetric information problem in these contracts. For doing this, we study the characteristics of lease and hiring contracts in Iran (real world experimental characteristics that recognized in other studies), using library method, then we mathematically model different aspects of asymmetric info...