This paper describes the innovative offshore point-absorber wave energy converter (WEC), IRWEC1, under development by the Hydrodynamics, Acoustics and Marine propulsion Group at Babol Noshirvani University of Technology. Totally enclosed in an outer shell, with no external moving parts, IRWEC1 is completely sealed which make it a robust and trustable system. Important motion for this WEC is the...

A software architect should consciously choose between architectural alternatives for a given problem. In multi-threaded software, the architectural choices for resource sharing problems can be expressed as two patterns, the resource-user thread and the resource thread. A resource-user thread acquires and releases exclusive access to shared resources. A resource thread has permanent exclusive a...

In this paper, we study the shift of thread semantics that arises when adapting a centralized Java program for execution in a distributed environment. More specifically we focus on distributed applications that are developed by means of a distributed control flow programming model like Java RMI or OMG CORBA. The shift in thread semantics causes unexpected execution results or run-time errors if...

In this paper we propose a new approach to building multithreaded uni-processors that become building blocks in high-end computing architectures. Our innovativeness stems from a multithreaded architecture with non-blocking threads where all memory accesses are decoupled from the thread execution. Data is pre-loaded into the thread context (registers), and all results are "post-stored" after the...

Threads share a single address space with each other. On the other hand, a process has its own address space. Since whether to share or not to share the address space depends on each data structure in the whole program, the choice of “a thread or a process” for the whole program is too much “all-or-nothing.” With this motivation, this paper proposes a half-process, a process partially sharing i...