The coverage problem is a crucial issue in wireless sensor networks (WSN), where a high coverage rate ensures a high quality of service of the WSN. This paper proposes a new algorithm to optimize ...

The paper firstly analyzes the basic structure of UML Sequence Diagram and gives the formal description of Object Petri Nets. For reuse, the formal description of reusable interaction is studied. Then ...

Description Diagram of generic plant and animal cells, showing major organelles including nucleus, nucleolus, rough endoplasmic reticulum, smooth endoplasmic reticulum, cell membranes, golgi apparatus ...