Results 41 to 50 of about 411,715 (285)

Using Colored Petri Nets for Conversation Modeling [PDF]

, 2000
Conversations are a useful means of structuring communicative interactions among agents. The value of a conversation-based approach is largely determined by the conversational model it uses. Finite State Machines, used heavily to date for this purpose, are not sufficient for complex agent interactions requiring a notion of concurrency.
R. Scott Cost, Ye Chen, Timothy W. Finin, Yannis Labrou, Yun Peng 0001   +4 more
openaire   +1 more source

An Edible Chitosan‐Based Acoustic Sensor for Sound‐Responsive Actuation in Edible Robots

Advanced Functional Materials, EarlyView.
This study introduces an edible acoustic sensor for robotic food and edible robotics. Built from a chitosan piezoelectric film between gold electrodes, the sensor enables acoustic communication through ON/OFF keying. Integrated into an edible robot with pneumatically actuated arms and neck, it responds to high‐frequency tones.
Valerio Francesco Annese, Bokeon Kwak, Gaia de Marzo, Giulia Coco, Valentina Antonaci, Leonardo Lamanna, Massimo De Vittorio, Dario Floreano, Mario Caironi   +8 more
wiley   +1 more source

Trust-Based Petri Net Model for Fault Detection and Treatment in Automated Manufacturing Systems

IEEE Access, 2021
Automated manufacturing systems (AMSs) are vulnerable to failures. Trust evaluation is becoming a novel technique for detecting faults in AMSs. In this article, a two-step robust deadlock control strategy for systems with unreliable resources is proposed.
Ebrahim Ali Alzalab, Ahmed M. El-Sherbeeny, Mohammed A. El-Meligy, Hafiz Tayyab Rauf   +3 more
doaj   +1 more source

Malware Behavior Modeling with Colored Petri Nets [PDF]

, 2014
We propose a solution which provides a system operator with a mechanism that enables tracking and tracing of malware behavior which – in consequence – leads to its detection and neutralization. The detection is performed in two steps. Firstly single malicious activities are identified and filtered out.
Bartosz Jasiul, Marcin Szpyrka, Joanna Sliwa 0001   +2 more
openaire   +3 more sources

Engineered Microvascular Model of the Blood–Brain–Tumor Barrier Reveals Endothelial Remodeling in Diffuse Midline Glioma

Advanced Healthcare Materials, EarlyView.
We developed a patient‐derived, functional microfluidic model of the diffuse midline glioma (DMG) blood–brain–tumor barrier (BBTB) comprised of endothelial cells, astrocytes, pericytes, and tumor cells. The system forms perfusable microvasculature, reveals the BBTB retains vascular integrity, identifies DMG‐specific transcriptomic changes distinct from
Kimberly R. Bennett, Yann S. Vanrobaeys, Tessy Teboh, Zakiya Smith, Anderson Scott, Cynthia Hajal, Paula T. Hammond, Joelle P. Straehla   +7 more
wiley   +1 more source

An Improved Synthesis Method Based on ILPP and Colored Petri Net for Liveness Enforcing Controller of Flexible Manufacturing Systems

IEEE Access, 2022
Petri nets are used to design deadlock control strategies for flexible manufacturing systems (FMSs), which typically involve the addition of monitors and the associated arcs to the FMS.
Husam Kaid, Abdulrahman Al-Ahmari, Zhiwu Li, Wadea Ameen   +3 more
doaj   +1 more source

From Fiber Bundles to Architected Membranes: Triply Periodic Minimal Surface Architectures for Biohybrid Artificial Lungs

Advanced Materials, EarlyView.
Additively manufactured triply periodic minimal surface (TPMS) membranes offer an architecture‐driven alternative to hollow fiber bundles in artificial lungs. Multiphysics simulations and endothelialized prototypes show that the 3D‐printable membrane architecture improves gas exchange, blood flow distribution, and hemocompatibility, enabling ...
Michael Pflaum, Kai P. Barbian, Florian Neuhaus, Gerrit Sitarz, Carolin Nölke, Sebastian V. Jansen, John Linkhorst, Lukas T. Hirschwald, Sebastian Brosch, Christian Certa, Ulrich Steinseifer, Matthias Wessling, Jutta Arens, Arjang Ruhparwar, Bettina Wiegmann   +14 more
wiley   +1 more source

Performance Evaluation of Database Systems Using Colored Petri Nets

Sultan Qaboos University Journal for Science, 2003
We propose Colored Petri Net (CPN) models for replicated and centralized database systems and conduct a comparative study of their performance. The designed CPN models capture the dynamics of the studied database systems and estimate their expected ...
A.B. Mnaouer, K. Day, M. Al-Towaiq, F.A. Masoud   +3 more
doaj   +1 more source

S‐Nitrosothiols as Thiol‐Protecting Groups for Controlled Thiol‐Maleimide Crosslinking of Homogeneous Soft Hydrogels

Advanced Materials, EarlyView.
Rapid thiol‐maleimide addition frequently outpaces mixing, resulting in heterogeneous hydrogels. S‐nitrosothiols act as thiol‐protecting groups, allowing uniform mixing with maleimide‐functionalized polymers before gelation. Sodium thiosulfate or sodium ascorbate then regenerates thiols on demand, triggering controlled thiol‐maleimide crosslinking ...
Julian A. Serna, Michelle J. Iwohn, Maximilian Seifermann, Stefan Heißler, Maike Schliephake, Franziska Dopp, Claudia Muhle‐Goll, Pavel A. Levkin   +7 more
wiley   +1 more source

Dependency-based fault diagnosis approach for SOA-based systems using Colored Petri Nets

Journal of King Saud University: Computer and Information Sciences, 2022
A faulty situation occurred in Service Oriented Architecture (SOA) based systems can affect its functionality. It is challenging to guarantee the reliability of service utilization in a distributed, concurrent and dynamic composition of web services ...
Guru Prasad Bhandari, Ratneshwer
doaj   +1 more source