37 research outputs found
Frequency-weighted balanced reduction of closed-loop mechanical servo-systems: Theory and tools
No full textMechanical Maritime and Materials Engineerin
A game co-design method to elicit knowledge for the contextualization of spatial models
No full textA frequent criticism of knowledge-based planning tools is the apparent mismatch between information frameworks used in their spatial models and the information needs of planning actors. Increasingly, these actors are contributing their context-specific knowledge during the development of such tools. Transferring this knowledge from actors to the model remains a challenge. This study establishes a set of design requirements for knowledge elicitation in small group settings and introduces game co-design as a method allowing planning actors and planning support experts to meet halfway between the technology and user domains in the so-called third space. We present an initial case where in three nominal group sessions, actors encountered and critiqued parameterized assumptions of their planning issues in a tangible game environment. Findings indicate that the method can elicit different types of knowledge (divergence) about a spatial system in operationalized terms (formalization). We discuss the potential of tangible game co-design as a modeling as learning exercise and its complementarity to dedicated digital technologies for more holistic planning support.Transport and Logistic
Communication system for wireless communication with the aid of aperiodic codes
No full textThe invention relates to a communication system for wireless communication, comprising a plurality (:N) of user stations and at least one base station maintaining the communication between the user stations, wherein the user stations transmit coded messages using an aperiodic transmission code that is unique for each station, which coded messages Cij(t).Si(t) pass transmission channels Hi in order to arrive at the at least one base station. The sum of messages X with model representation X = C.H.S being the contributions of all Cij(t).Hi.Si(t) (i = 1...N; j = 1...Gi, t = 1...Ki), is fed to a processing device of the base stationElectrical Engineering, Mathematics and Computer Scienc
Application of Mass Spectrometry in the Study of Some Isoquinoline Alkaloids
No full textTitle: Application of Mass Spectrometry in the Study of Some Isoquinoline Alkaloids, Author: Chi-Kuen Yu, Location: ThodeThe structures of three new tetrahydroprotoberberine alkaloids,
caseanadine, cavidine and apocavidine have been determined on the basis
of mass spectral and p.m.r. data. The mass spectra of spirobenzylisoquinoline alkaloids with
different oxygenated substituents in the five-membered ring have been
recorded. Fragmentation mechanisms are proposed to account for the
major peaks in all the spectra. High resolution mass measurements have
been used to aid in the interpretation of the spectra. The structure
of a new spirobenzylisoquinoline alkaloid, F-38, has been elucidated by
spectroscopic methods.ThesisDoctor of Philosophy (PhD
Load sensor
No full textThe invention relates to a load sensor comprising a polymer matrix and a piezo-ceramic material such as PZT, em not bedded in the polymer matrix, which together form a compos not ite, wherein the polymer matrix is a liquid crystalline resin, and wherein the piezo-ceramic material is a PZT powder forming 30-60% by volume of the composite, and wherein the PZT powder forms 40-50% by volume of the composite.Aerospace Engineerin
P.M.R Evidence for biaxial Long-Range Couplings in Some Pyranosid-2-and 3-Ulose Derivatives
No full textDepartmental Bulletin PaperLong_range coupling constants over four bonds (4J), which are closely correlated with stereochemistry, provide valuable information on structures, conformations and configurations of organic compounds (1,2). It is generally known that the occurrence of intensive 4J long-range couplings in saturated\ncyclic systems requires a bonding system of the coupled protons in the planar W-arrangement(3,4), and indeed the protons of a 1,3-diequatorial orientationin a pyraroid carbohydrate with the chair conformation have been reported to show 4J. On the contrary, there have been several reports demonstrating occurrence of 1,3-diaxial long-range couplings in halogenocyclohexanones(5) and carbohydrates (6-8). In a previous paper (9), the author has reported a\nsmall 4J long-range coupling constant (1.OHz) between H-2 and H-4 in methyl\n2-O-acetyl-4, 6-O-benzylidene-a-D-Yibo-hexopyranosid-3-ulose(1)
Why do they study there? Diary research into students' learning space choices in higher education
No full textHigher education learning and teaching methods have changed while most educational buildings are still rather traditional. Yet, there is an increasing interest in whether we can educate today's higher education students in yesterday's buildings. This paper aims to contribute to this debate by studying the learning space choices of higher education students in relation to their learning activities, personal characteristics and other considerations that may play a role in choosing particular learning spaces. A diary research method was adopted, in which 52 business management students of a Dutch University of Applied Sciences participated. They reported which learning activities they worked on during a week, where and why there. The diary format builds on the literature from various disciplines and was used in combination with a questionnaire and interviews. The findings show significant correlations between the students’ learning space choices and their learning activities, their personal characteristics and their individual preferences. Because of the shift from a teacher-led approach to a student-led approach, higher education institutions need to provide more informal learning spaces in open areas and quiet learning spaces for individuals and small groups
Assessing the Implementation Potential of PCMs: The Situation for Residential Buildings in the Netherlands
No full textAbstractTo be able to come to zero-energy buildings we need to apply multiple Energy Techniques and Measures (ETMs). Phase Change Materials (PCMs) can be considered as one of these ETMs and they seem to have a lot of potential. Due to their latent heat capacity, PCMs can help to store energy of our main renewable source, the sun, and to shave energy peaks. However, little is known about what barriers exactly exist in implementing ETMs —and PCMs in particular— in residential buildings. By assessing 1) the effects of PCMs on the energy performance of dwellings, 2) their financial effects and 3) the effects of implementing PCMs for stakeholders, the implementation potential of micro-encapsulated paraffin-based PCMs in Dutch residential buildings is determined and barriers are identified. The observation was made that the effects on the actual energy use cannot be easily estimated and that their impact on compelled EPIs is little. It was also observed that only the investment costs of the PCMs can be assessed and that uncertainty exists about how PCMs perform, when actually implemented in a dwelling and used by residents for several years. Although our experiments on PCMs integrated in concrete floors showed positive results, the implementation potential of micro-encapsulated paraffin based PCMs to support or replace heating systems in residential real estate is relatively low. The results could help developers of new ETMs to become aware of what advantages their innovation can offer and what shortcomings still need to be overcome
A conceptual framework to identify spatial implications of new ways of learning in higher education
No full textPurpose – The purpose of this paper is to explore the spatial implications of new learning theories and the use of information and communication technologies (ICT) in higher education. Design/methodology/approach – Based on a review of the literature, a theoretical framework has been developed that visualises the spatial implications of developments in higher education. To further explore spatial configurations that support changes in education, a comparative floor plan analysis was carried out at four Dutch institutes of higher education. Findings – The findings show that the traditional classroom space is progressively being replaced by a variety of learning settings to support contemporary learning activities. Practical implications – The research findings contribute to a better understanding of the alignment of learning space to the evolving needs that come from new ways of learning, supported by advanced ICT, and can be used to support space planning in higher education. Originality/value – This paper builds upon findings from different disciplines: Facilities Management and Corporate Real Estate Management (suitability of floor plans) and Theory of Education (the pedagogical approaches and pedagogical assumptions those floor plans convey)
Aligning corporate real estate with the corporate strategies of higher education institutions
No full textPurpose – The purpose of this paper is to explore how corporate real estate (CRE) managers of higher education institutions formulate their CRE strategies and CRE operating decisions to align CRE with the corporate strategies of these institutions. Design/methodology/approach – An analytical alignment framework has been developed, which was used to study the possible and actual connections between CRE management and corporate management at 13 large Dutch Universities of Applied Sciences. The data collection included a content analysis of the strategic plans of these universities and interviews with the CRE managers. Findings – The research findings show several layers of how CRE managers aim to align CRE with corporate goals to add value to the organization. It appears that the CRE strategies in-use are more clearly aligned with the corporate strategies than with the espoused CRE strategies. Practical implications – The paper emphasizes the relevance of involving CRE management in corporate decision-making to contribute to the attainment of the organizational objectives with an efficient and effective accommodation. Originality/value – Substantial changes in learning and teaching practices in higher education lead to evolving corporate strategies, which result in the need for aligned CRE strategies and CRE operating decisions. This paper makes practitioners and researchers aware of the differences between alignment-based espoused CRE strategies and alignment that results from CRE strategies in-use in the field of higher education. The findings and insights might be applicable in other sectors as well
