Sequential function charts (SFCs) are defined as a modeling language in the IEC 1131-3 standard [1] and can be used to structure and drive programmable logic controllers (PLCs). It includes interesting concepts as hierarchy, history variables and priority. As the typical application area of this language is the control of industrial processes, it is obvious that safety and reliability is a cruc...

effort in the fields of discrete wavelet transform in the last few decades. Discrete wavelet transform (DWT) associated with the vector quantization has been proved to be a very useful tool for the compression of image. However, the DWT is very computationally intensive process requiring innovative and computationally efficient method to obtain the image compression. The concurrent transformati...

Given a formal description of a system, there are computational tools that verify the validity of some properties in the system. These tools usually only tell the user whether the property holds or not, without giving any hint as to how the system could be adapted in order for the desired property to hold. In this paper, we present a formal approach for handling inconsistencies in CTL (computat...

The impact of drug-drug interactions (DDIs) between interferon-free direct acting antiviral (DAA) regimens and antiretrovirals (ART) among HIV/HCV co-infected individuals in clinical practice settings is unknown. A single-center, retrospective chart review of co-infected patients was conducted from June 2014 to February 2015. Significant interactions between simeprevir (SMV), ledipasvir (LDV), ...

The highly-publicized division error in the Pentium has emphasized the importance of formal verification of arithmetic operations. Symbolic model checking techniques based on binary decision diagrams (BDDs) have been successful in verifying control logic. However, lack of proper representation for functions that map boolean vectors into integers has prevented this technique from being used for ...

Fall 2004: Assignment No. 1 Due Date: 10.6.04 September 29, 2004 This assignment requires extensive use of the tlv verifier. Please refer to the tlv web page http://www.cs.nyu.edu/acsys/tlv for obtaining the executable images of the system. Use the 4.18 version, and follow the instructions for installing tlv on your machine. In addition you may refer to the smv manual, which is available in the...

PURPOSE Tumor invasion to the portal vein (PV) or superior mesenteric vein (SMV) can be encountered during the surgery for pancreatic cancer. Venous reconstruction is required, but the optimal surgical methods and conduits remain in controversies. METHODS From January 2007 to July 2012, 16 venous reconstructions were performed during surgery for pancreatic cancer in 14 patients. We analyzed t...

A skeletal muscle ventricle (SMV) consisting of biological materials only was designed as an aortic counterpulsation device. 14 adult sheep were used for acute experiments. The thoracic aorta was excised from a donor sheep. A neoventricle was created by enlarging the aortic circumference with homologous pericardium. This biological conduit was anastomosed in parallel to the descending aorta of ...

Multi-state weighted k-out-of-n systems are widely applied in various scenarios, such as multiple line (power/oil transmission line) transmission systems where the capability of fault tolerance is desirable. However, the complex operating environment and the dynamic features of load demands influence the evaluation of system reliability. In this paper, a stochastic multiple-valued (SMV) approac...