Plant-wide interoperability and decoupled, data-driven process control with message bus communication

Conventional industrial communication systems suffer from rigidness, inflexibility and lack of scalability. The environment is heterogeneous as the systems exchange data with a variety communication protocols, some of which are proprietary. This makes it laborious and expensive to reconfigure or upgrade the systems. As the solution, this article proposes a message-bus-based communication architecture to enable information exchange between systems regardless of their geographical location and position within the functional hierarchy of the plant. The architecture not only enables communication to cross the conventional physical borders but also provides scalability to growing data volumes and network sizes. As proofs of concept, the article presents a prototype in three environments: a copper smelter, a steel plant and a distillation column. The results suggest that the message-bus-based approach has potential to renew industrial communications, a core part of the fourth industrial revolution.H2020, 723661, COCO

Every month the moon swallows itself

This thesis consists of two parts, a complete poetry manuscript and three pieces of professional writing. With a double concentration in Creative Writing and Rhetoric, Composition, and Professional Communication, this two part thesis fulfills the thesis requirements for each area of concentration. The poems in this manuscript combine two different traditions, the lyrical poem with the seeing poem. Heavily influenced by translations of Japanese women court poets, these poems are written in a spare style and with attention to the objective aspects of intensely subjective feelings. Many of these poems are also nature poems that center on moon imagery. These poems have some of the attributes of the seeing poem. Objects in nature are treated with honor and accorded a consciousness of their own. A careful attention to sound, characteristic of nature poetry, is also present in these poems. Themes within these poems include: the importance of nature, transformation, descent, silence, waiting, and erotic love. Three pieces of professional writing follow the poetry manuscript. These include the narrative portion of an arts related grant written to the Iowa Arts Council for a dance concert, Tribes. A HipOpera, produced by Valerie Williams Co\u27Motion Dance Theater, a press release about Tribes, and an interview with Valerie Williams and Janice Baker describes and reflects on the process of writing each piece. In addition, each narrative contains an analysis of the rhetorical context of the piece in terms audience, purpose, context, arrangement, and ethos. Each narrative further includes a discussion of the significant ways in which RCPC class work influenced the preparation of these pieces. A complete copy of the final grant is included in the appendix

Spartan Daily, September 13, 2002

Volume 119, Issue 11https://scholarworks.sjsu.edu/spartandaily/10655/thumbnail.jp

IoT Security Vulnerabilities and Predictive Signal Jamming Attack Analysis in LoRaWAN

Internet of Things (IoT) gains popularity in recent times due to its flexibility, usability, diverse applicability and ease of deployment. However, the issues related to security is less explored. The IoT devices are light weight in nature and have low computation power, low battery life and low memory. As incorporating security features are resource expensive, IoT devices are often found to be less protected and in recent times, more IoT devices have been routinely attacked due to high profile security flaws. This paper aims to explore the security vulnerabilities of IoT devices particularly that use Low Power Wide Area Networks (LPWANs). In this work, LoRaWAN based IoT security vulnerabilities are scrutinised and loopholes are identified. An attack was designed and simulated with the use of a predictive model of the device data generation. The paper demonstrated that by predicting the data generation model, jamming attack can be carried out to block devices from sending data successfully. This research will aid in the continual development of any necessary countermeasures and mitigations for LoRaWAN and LPWAN functionality of IoT networks in general

Automated planning for cloud service configurations

The declarative approach has been widely accepted as an appropriate way to manage configurations of large scale systems – the administrators describe the specification of the “desired” configuration state of the system, and the tool computes and executes the necessary actions to bring the system from its current state into this desired state. However, none of state-of-the-art declarative configuration tools make any guarantees about the order of the changes across the system involved in implementing configuration changes. This thesis presents a technique that addresses this issue – it uses the SFP language to allow administrators to specify the desired configuration state and the global constraints of the system, compiles the specified reconfiguration task into a classical planning problem, and then uses an automated planning technique to automatically generate the workflow. The execution of the workflow can bring the system into the desired state, while preserving the global constraints during configuration changes. This thesis also presents an alternative approach to deploy the configurations – the workflow is used to automatically choreograph a set of reactive agents which are capable to autonomously reconfigure a computing system into a specified desired state. The agent interactions are guaranteed to be deadlock/livelock free, can preserve pre-specified global constraints during their execution, and automatically maintain the desired state once it has been achieved (self-healing). We present the formal semantics of SFP language, the technique that compiles SFP reconfiguration tasks to classical planning problems, and the algorithms for automatic generation and execution of the reactive agent models. In addition, we also present the formal semantics of core subset of SmartFrog language which is the foundation of SFP. Moreover, we present a domain-independent technique to compile a planning problem with extended goals into a classical planning problem. As a proof of concept, the techniques have been implemented in a prototype configuration tool called Nuri, which has been used to configure typical use-cases in cloud environment. The experiment results demonstrate that the Nuri is capable of planning and deploying the configurations in a reasonable time, with guaranteed constraints on the system throughout reconfiguration process

A Formal Framework for Web Services Coordination

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