568 research outputs found
Properties of superposition operators acting between Bμ∗ and QK∗
No full textAbstractIn this paper we introduce natural metrics in the hyperbolic Bloch and QK-type spaces with respect to which these spaces are complete. Moreover, Lipschitz continuous, bounded and compact superposition operators Sϕ from the hyperbolic Bloch type space to the hyperbolic QK-type space are characterized by conditions depending only on the analytic symbol ϕ
THE OPTIMAL FEEDBACK-CONTROL OF LINEAR-SYSTEMS WITH NON-CHEAP CONTROL
No full texthttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1983RD36900007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701MathematicsSCI(E)0ARTICLE2171-182
The mechanistic studies of the electrochemical in situ association of copper ions with 5, 10, 15, 20-tetraphenyl-21H, 23H-porphyrin
No full textA trace of 5, 10, 15, 20-tetraphenyl-21H, 23H-porphyrin (H2TPP) was mechanically transferred to the surface of a paraffin-impregnated graphite electrode and associated with copper ions in an aqueous media by electrochemistry. Under different electrochemical conditions, two cases of surface associations of H2TPP with copper ions are obtained. The formations were characterized by the voltammetry of the immobilized microparticles. According to the different voltammetric behaviors of the two cases of the in situ formed copper porphyrins, the different association mechanisms of the two cases of copper porphyrins were elucidated. (C) 2000 Elsevier Science B.V. All rights reserved.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000165831000017&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Chemistry, AnalyticalSCI(E)5ARTICLE3333-3406
Work schedules, wages, and employment in a general equilibrium model with team production
No full textAn analysis of working hours, wages, and employment when production requires coordinating the work schedules of heterogeneous workers. The author shows that this coordination aspect of production can have important policy implications.Hours of labor ; Employment (Economic theory) ; Wages
Electrochemical study of tetra-phenyl-porphyrin on the SWNTs film modified glassy carbon electrode
No full textTetra-phenyl-porphyrin (TPP) was successfully immobilized on single wall carbon nanotubes (SWNTs) modified glassy carbon (GC) electrode. In phosphate buffer solution (pH 7.0), the TPP/SANTs film modified electrode gave a pair of redox peaks at about -0.7 V (vs. SCE) in the cyclic voltammetry (CV) experiment. The electrochemical response was very stable, and the peak currents were linearly with the scan rate. When the hemoglobin was added to the buffer solution, the peak currents of TPP/SWNTs modified electrode decreased. Using the modified electrode, the interactions between hemoglobin and TPP/SANTs film was also studied. (C) 2003 Elsevier B.V. All rights reserved.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000187678000016&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701ElectrochemistrySCI(E)EI30ARTICLE183-86
Embracing business start-up programme in UK mainstream entrepreneurship education
No full textThe results of a research-informed-teaching project carried out by the author help to identify several key factors related to the content and delivery of a successful government initiative – New Entrepreneur Scholarship (NES, 2001-2008). This project aims to evaluate the feasibility of implementing these changes to undergraduate and postgraduate entrepreneurship programmes. The outcome of this research project helps to highlight deep-rooted issues related to entrepreneurship education and research
Stakeholder Perceptions of Transaction Costs in Prefabricated Housing Projects in China
No full textPrefabrication has the potential to improve the efficiency and sustainability of housing production. However, there are various challenges in the realization of prefabricated housing (PH) from the stakeholder's perspective. Transaction costs (TCs) theory provides a particular angle that explains the invisible costs within transactions. This study aims to explore how perceptions of TCs vary for stakeholder groups and show the potential to reduce TCs in China. The distribution of TCs related to stages and stakeholders was investigated by a literature study and validated by expert interviews. Further, an existing framework of TCs was adopted to conduct a questionnaire survey for collecting perceptions of TCs from six stakeholder groups. The findings show that assembly, detailed design, and design change are the most highlighted TCs of PH. In particular, the component supplierscomplained of TCs from the points of detailed design and hiring skilled labor. The local governmentemphasized TCs on monitoring and enforcement in assembly, architectural design, and component transportation. This research contributes to the construction management community by acknowledging stakeholders in understanding their TCs, which also inspires the policy makers to reduce significant TCs to smooth transactions for the future of China's PH market.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Housing Quality and Process InnovationPublic Commissionin
Randomized controlled trial for early intervention for Autism: A pilot study of the Autism 1-2-3 project
No full textWe piloted a 2-week "Autism-1-2-3" early intervention for children with autism and their parents immediately after diagnosis that targeted at (1) eye contact, (2) gesture and (3) vocalization/words. Seventeen children were randomized into the Intervention (n = 9) and Control (n = 8) groups. Outcome measures included the Autism Diagnostic Observation Schedule, Ritvo-Freeman Real Life Rating Scale, Symbolic Play Test, and Parenting Stress Index. Children with autism improved in language/communication, reciprocal social interaction, and symbolic play. Parents perceived significant improvement in their children's language, social interaction, and their own stress level. This intervention can serve as short-term training on communication and social interaction for children with autism, and reduce the stress of their parents during the long waiting time for public health services. © Springer Science+Business Media, LLC 2009.link_to_subscribed_fulltex
Exploring transaction costs in the prefabricated housing supply chain in China
No full textThe growing environmental problems, the rapid urbanization, and the disappearance of the demographic dividend in China has brought unprecedented opportunities to the development of prefabricated housing (PH). However, many barriers are hindering the promotion of PH, for instance, cost, lack of regulations, and the shortage of knowledge, among which cost is identified as one of the most critical barriers. Unlike previous studies focused only on production costs, this research aims to investigate transaction costs (TCs), e.g., searching costs, negotiation costs, and enforcement costs. First, this paper develops a theoretical TCs framework of the PH supply chain, based on an extensive literature review. Secondly, an empirical study was conducted on two cases in Chongqing to validate the TCs framework. Key stakeholders are identified by Social Network Analysis (SNA). Subsequently, 25 semi-structured interviews were conducted with key stakeholders, both to verify the new TCs framework and to explore stakeholder concerns about TCs. The centrality metrics by SNA identified six key stakeholders who have a significant influence on TCs. It is found from the interviews that both the conceptual phase and the construction phase are stages where the majority of TCs occur. Both the developer and the general contractor are paying for more TCs compared to the other stakeholders. This study contributes to theory by initially introducing the concepts of TCs to the PH field, and the findings bring implications on the governance of PH supply chain to both private stakeholders and the government.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Housing Quality and Process InnovationPublic Commissionin
Unravelling Dutch homeowners’ behaviour towards energy efficiency renovations: What drives and hinders their decision-making?
No full text The housing stock has a considerable share of 40% in energy consumption and 36% of CO 2 emissions in the EU. In accordance to energy efficiency and emissions targets set by EU, The Netherlands has aimed to renovate 300,000 homes each year, leading to 50% reduction in CO 2 emissions, by 2050. Many factors including low renovation rates create uncertainties in achieving these targets. The current study aims for understanding the barriers and drivers towards energy efficiency renovations (EERs) amongst Dutch homeowners, and to aid in gaining a better insight into the role of public authorities in promoting EERs. First, the extrinsic drivers, including policies and other initiatives in the EER process are explained. Second, the intrinsic drivers and intrinsic/extrinsic barriers are explored. Regression analyses are performed on the national Dutch survey data for renovators and potential renovators. Our main findings include: (a) desire to enhance the quality of their life, rather than the financial benefits, etc. is identified as the main driver; (b) the main barriers are the costs of EERs, complexities in the process, information barriers, and finding reliable experts and information; (c) For improvement in meeting renovation targets, the current Dutch policies need to consider all the decision criteria by homeowners, such as: Reducing the complexities; Time needed to obtain loans and subsidies; and Facilitating access to information. Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.OLD Housing Quality and Process Innovatio
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