Wouter Teeuw

• Doctor of Engineering
• Saxion University of Applied Sciences

Revolutionary advances in technology have been seen in many industries, with the IIoT being a prime example. The IIoT creates a network of interconnected devices, allowing smooth communication and interoperability in industrial settings. This not only boosts efficiency, productivity, and safety but also provides transformative solutions for various...

The effective operation of distributed energy sources relies significantly on the communication systems employed in microgrids. This article explores the fundamental communication requirements, structures, and protocols necessary to establish a secure connection in microgrids. This article examines the present difficulties facing, and progress in,...

The full potential of predictive maintenance has not yet been utilised. Current solutions focus on individual steps of the predictive maintenance cycle and only work for very specific settings. The overarching challenge of predictive maintenance is to leverage these individual building blocks to obtain a framework that supports optimal maintenance...

With the onset of the fourth industrial revolution, predictive maintenance using wireless sensing technologies has been in high demand. This motivates to investigate the potential of WiFi CSI as a sensor for understanding the operation of machines. Since rotating motors are one of the fundamental elements in many complex machines, this paper focuse...

The aim of this pilot study was to investigate the effects of an intervention consisting of mental coaching combined with either electro encephalogram (EEG) alpha power feedback or heart rate variability (HRV) feedback on HRV, EEG outcomes and self-reported factors related to stress, performance, recovery and sleep quality in elite athletes. A pros...

Abstract XoSoft is an EU project that proposes the development of a modular soft lower-limb exoskeleton to assist people with mobility impairments. It aims to be user friendly and comfortable to wear, with a significant impact on the person’s mobility and health, on their independence and quality of life. Being a modular system, it comprises of an...

One of the numerous applications of wearable computers is providing safety in occupations where heat-related injuries are prevalent. Core temperature, as a parameter that cannot be measured by on-body sensors is a variable that is specifically interesting for realizing such applications. In the context of the design of a sensor-shirt that can be us...

People tend to use the same door every time they enter and exit a building. When certain entrances are widely preferred over others, congestion can occur. This paper describes two interventions to persuade visitors to use another entrance. The first intervention used sensory deprivation (darkness), and the second used guidance paths. The first inte...

In this paper we present the vision of the Go Green project on a smart home that is capable of decreasing energy consumption while at the same time increasing user comfort. To identify the main challenges we introduce a general model for intelligent homes that describes the current state, the target state and the transition. A key point in the proj...

The i-Zone initiative proposes a new approach to urban mobility management by using the latest mobile ICT technologies. It is about mobile phones that measure and analyse user behaviour in order to influence travel behaviour. By providing feedback to the traveller (self monitoring), by information sharing, or by providing positive incentives to tra...



In this study we investigate the impact of converging technologies on legal practice and criminology in a forward looking study intended for practitioners and policy makers in the field of legislation, crime prevention, and law enforcement. We look at a 15 years timeframe and discuss the scientific and technical progress in various domains as well...

In this paper we describe our endeavour of developing a Proactive Attentive Support System (PASS). We explain that PASS is bio-inspired and can be grounded on mathematical physics. We demonstrate its successful applicability in the video surveillance domain.

Presentatie voor Congres Actieplan Veilig Ondernemen, Sessie Gezichtsherkenning, Congresgebouw, Den Haag, Nederland, 12 mei 2005.

CIC seminar Domotica, Media Plaza, Utrecht, 15 november 2004

This paperpresen--- a middleware platformsupportin a modelbased approach to servicecreation We observe that the complexity of software servicesinices'G( TomanC1 this complexity, to reuse middlewarefunleware'G/--- an to quickly create specific servicesin an efficien an cost-effective wayupon user request, models are used, goin towards `higher-level'...

This paperpresen a model-based approach to servicecreation We observe that the complexity of software servicesinces' To man this complexity,an to quickly create specific servicesin an efficien an cost-effective wayupon user request, models are used, goin towards `higher-level' programmin A servicecreation ention is developed that supports the model...

In I/O Vivat, Jaargang 18, nummer 4, juli 2003, p. 5-7

Position paper PAMPAS '02 - Workshop on Requirements for Mobile Privacy & Security

Position paper at the fifth meeting of the Wireless World Research Forum, Tempe, Arizona, March 2002.

GigaPort Highlights: deel 4

This document gives an overview of the state of the art in e-business services at different levels. We start from networks and network services and move up to commerce and business services. The document has extensive references for further reading and a glossary of e-business terms.

This paper presents a middleware platform supporting a model-based approach to service creation. We observe that the complexity of software services increases. To manage this complexity, to reuse middleware functionality, and to quickly create specific services in an efficient and cost-effective way upon user request, models are used, going towards...

Engineers are trained to design systems such as bridges, computers, and aircraft in a well-structured manner. However, the design of business processes has not yet matured to this level. We argue that the complexity of business processes is the major cause. In this paper, we investigate the causes of this complexity, and provide heuristics to maste...

In de Internetwereld zien we een nieuwe paradigma ontstaan: de ‘retailer’. Ook al is niet helemaal duidelijk wie deze rol gaat invullen, duidelijk is wel dat eindgebruikers een éénduidige ingang wensen voor een scala aan diensten. Transparantie van, onder andere, kosten is hierbij gewenst. Een dienstenaanbieder wil zich ook niet langer zorgen hoeve...

This paper presents a model-based approach to service creation. We observe that the complexity of software services increases. To manage this complexity, and to quickly create specific services in an efficient and cost-effective way upon user request, models are used, going towards 'higher-level' programming. A service creation environment is devel...

. Business process modelling and analysis puts specific requirements on models used and the language for expressing those models. The models should be easily understandable and analysable. In this paper we study the requirements for such a language and introduce a language that satisfies those requirements to a large extent. It was developed in the...

This paper describes a design approach for distributed systems that combines the pure top-down approach commonly found in protocol specification with the benefits of an incremental and iterative object-oriented design approach for software realization. This approach was defined in the Dutch project Platinum. Within this project an advanced signalin...

Multimedia has emerged over the last few years as a major area of research and development. The range of potential applications made feasible by combining text, graphics, images, audio and video is both wide and steadily increasing. Most of the work to date has centred on stand-alone multimedia applications, such as computer-aided learning and inte...

Based on the empirical input of several Dutch projects, we have analysed the developments in the field of Product Data Interchange (PDI). We will pay attention to five aspects of PDI: (1) the participants involved in the exchange process, (2) the techniques that are used, (3) the semantics included in the product descriptions, (4) the standards use...

This paper describes the methodology we use in the design of a complex object server application for the Amoeba distributed operating system. We use the topdown design that was suggested by Parnas, in which a model is turned into an implementation by gradually adding details. We describe the abstraction levels that show up if going from a specifica...

In non-standard database systems performance tends to be critical. To obtain the required response times for processing complex objects, parallelism needs to be exploited and suitable storage structure for complex objects have to be used. In this paper we use an hierarchical complex object model with object references. The join operations for these...

In this paper we describe the initial design and implementation of a database application for the Amoeba distributed operating system: the complex object server ACOS. We use the top-down design methodology that was suggested by Parnas, in which a model is turned into an implementation by gradually adding details. Therefore, not all components of th...

The execution of a query in a parallel database machine can be controlled in either a control flow way, or in a data flow way. In the former case a single system node controls the entire query execution. In the latter case the processes that execute the query, although possibly running on different nodes of the system, trigger each other. Lately, m...

In order to obtain the performance required for nonstandard database environments, a hierarchical complex object model with object references is used as a storage structure for complex objects. Several storage models for these complex objects, as well as a benchmark to evaluate their performance, are described. A cost model for analytical performan...

The performance of a non-standard distributed database system is strongly ifluenced by complex objects. The effective exploitation of parallelism in querying them and a suitable structure to store them are required in order to obtain acceptable response times in these database environments where performance tends to be critical. In this paper we us...

Benchmarking an SIMD pyramid with the Abingdon Cross is discussed. Measured results for a simulated pyramid architecture on a CLIP4 processor array are presented, as well as estimates for a hypothetical hardware pyramid built with CLIP4 like processing elements.

An cvaluation is made of hardware and software rcquirc- mcnts to support window-, crinkle- and pyramid-mapping on a lincar and a squarc proccssor array. The diffcrcnt mapping strat- cgics also lcad to diffcrcnt algorithms to solvc imagc proccssing problcms. Thrcc imagc proccssing problems servc as an cxarnplc of thc algorithmic diffcrcnccs causcd b...

We demonstrate collaborative compound document editing, a new paradigm for collaborative editing environments. In particular, we demonstrate CoCoDoc [3], a framework based on OpenDoc and CORBA [6]. Most features of the system will be demonstrated with CoCoTreePart, a simple collaborative compound outline editor developed with the CoCoDoc framework....

The challenge of managing secure access to information and applications scattered across a wide range of internal and external-computing systems is no sinecure. In this paper we describe an example of a B2E context-aware mobile application framework to introduce the concept of location (where am I, where are my colleagues) as an integral part of a...

Thesis (doctoral)--Universiteit Twente, 1993.