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Search Results: 1 - 10 of 1166 matches for " Wim Kotterman "
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Quantification of Scenario Distance within Generic WINNER Channel Model
Milan Narand?i?,Christian Schneider,Wim Kotterman,Reiner S. Thom?
International Journal of Antennas and Propagation , 2013, DOI: 10.1155/2013/176704
Diversity Properties of Multiantenna Small Handheld Terminals
Kotterman Wim ATh,Pedersen Gert F,Olesen Kim
EURASIP Journal on Advances in Signal Processing , 2004,
Abstract: Experimental data are presented on the viability of multiple antennas on small mobile handsets, based on extensive measurement campaigns at 2.14 GHz with multiple base stations, indoors, from outdoor to indoor, and outdoors. The results show medium to low correlation values between antenna branch signals despite small antenna separations down to . Amplitude distributions are mainly Rayleigh-like, but for early and late components steeper than Rayleigh. Test users handling the measurement handset caused larger delay spread, increased the variability of the channel, and induced rather large mean branch power differences of up to 10 dB. Positioning of multiple antennas on small terminals should therefore be done with care. The indoor channels were essentially flat fading within 7 MHz bandwidth ( ); the outdoor-to-indoor and outdoor channels, measured with 10 MHz bandwidth, were not. For outdoor-to-indoor and outdoor channels, we found that different taps in the same impulse response are uncorrelated.
Climate Change and Industrial Policy
Wim Naudé
Sustainability , 2011, DOI: 10.3390/su3071003
Abstract: Industrial policy (IP) can make an important contribution to both environmental and social sustainability. The purpose of this paper is to explore the new rationale for IP due to climate change and to determine its implications for the how of industrial policy. Five implications are discussed, namely the need for international coordination of IPs; for putting human-development, and not emission targets, as the overriding objective of low-carbon IP; of stimulating innovation for energy efficiency, energy diversification, and carbon capture and storage; and for aligning IP with trade policies. Finally the funding needs of low-carbon IPs are discussed, and the importance of private sector funding emphasized.
Lessons from animal models of arthritis over the past decade
Wim Berg
Arthritis Research & Therapy , 2009, DOI: 10.1186/ar2803
Abstract: Animal models have contributed to the understanding of basic mechanisms of joint disease. There is marked diversity among the numerous models, and arthritis has been induced by various stimuli. These include the generation of auto-immunity to cartilage components, nonspecific skewing of autoimmunity with adjuvants, and triggering with exogenous agents such as bacteria and viruses. More recently, focused transgenic manipulation has added novel variants (Table 1).The wide variety of agents that can induce experimental arthritis with histopathological features close to those of human arthritides suggests that disparate etiological pathways may exist in rheumatoid arthritis (RA). No single animal model of arthritis truly represents the human disease, but the models mimic various aspects and can be used as tools to understand particular pathways.Developments over the past decade include the generation of novel models as well as pathway analysis and therapeutic targeting in classic models. Aspects peculiar to individual models are of value but must be interpreted with caution. Much can be learned from the general validity of mediator involvement and other common concepts. This review will not discuss the developments in immune regulation and the use of models to identify disease susceptibility genes, but will focus on insights into cytokine involvement and aspects of joint destruction. The process of cartilage erosion remains hard to evaluate in patients. Synovial biopsies are now performed in many early arthritis clinics, but samples of damaged bone and cartilage become available only late in the disease, after joint replacement. Models therefore provide valuable tools.Characteristic histopathological features of RA include immune complexes (ICs) in the articular cartilage layers and variable amounts of macrophages, T cells and plasma cells in the synovium, often accompanied by fibrosis and synovial hyperplasia. Formation of autoantibodies, including rheumatoid factor an
Waarom schrijft u? Waarom schrijft u in het Nederlands? Literatuur en taal in de Nederlandse Antillen en Aruba
Wim Rutgers
Tydskrif vir letterkunde , 2004,
Abstract: Language and literature in the Netherlands Antilles and Aruba [Dutch] Four languages are used daily on the six islands that encompass the Netherlands Antilles and Aruba and form part of the Kingdom of the Netherlands: the national languages English and Papiamento (an interlanguage based upon Dutch, English, Portuguese and Spanish), the Dutch of the Kingdom and the regional language, Spanish. Each of these four languages has a literary tradition on the islands. Although Dutch is still the official language and used as the language of school instruction and the written language of business its wider functions have diminished. Over the past decades the language has virtually disappeared from the islands' cultural life, with the consequence that Dutch-Antillean literature is also gradually declining. On Cura ao, Aruba and Bonaire Papiamento predominates and will have to replace Dutch as the literary language, but as long as it is not a language of instruction this will be problematic. Over the last couple of years an important literary tradition in English has developed on Saint Maartin, Saba and Saint-Eustatius. Alongside the written literature an oral tradition exists up to the present day on the islands. Cola Debrot, Boeli van Leeuwen, Tip Marugg and Frank Martinus Arion are well known internationally but there are many other writers who belong to the literary canons of the islands. Key Words: Netherlands Antilles, Aruba, Papiamento, Antillean literature. Talen en literatuur in de Nederlandse Antillen en Aruba Op de zes eilanden die samen als de Nederlandse Antillen en Aruba deel zijn van het Koninkrijk der Nederlanden worden dagelijks vier talen gebruikt: de nationale talen Papiamentu en Engels, het Nederlands van het Koninkrijk en het Spaans van de regio. Elk van deze vier talen heeft een literaire traditie op de eilanden. Het Nederlands heeft in de loop van de tijd steeds minder functies gekregen maar is nog steeds offici le taal, schooltaal en schriftelijke bestuurstaal. Uit het culturele leven is de taal de laatste decennia nagenoeg verdwenen, wat inhoudt dat ook de Nederlands-Antilliaanse literatuur langzamerhand lijkt te verdwijnen. Op Cura ao, Aruba en Bonaire zal het Papiamentu de functie van literaire taal moeten gaan overnemen, maar dat is nog problematisch zolang deze taal niet de instructietaal van het onderwijs wordt. Op Sint-Maarten, Saba en Sint-Eustatius ontwikkelt zich de laatste jaren een belangwekkende literatuur in het Engels. Naast de geschreven literatuur kennen de eilanden een orale traditie die voortduurt tot vandaag de dag. De in het buitenland bekendste schrijvers zijn Cola Debrot, Boeli van Leeuwen, Tip Marugg en Frank Martinus Arion, maar er zijn talrijke andere schrijvers die tot de eilandelijke canons behoren. Trefwoorden: Nederlandse Antillen, Aruba, Papiamentu, Antilleaanse literatuur. Tydskrif vir letterkunde Vol.41(1) 2004: 115-129
VAC Instill for treating acute wound infection
Fleischmann, Wim
GMS Krankenhaushygiene Interdisziplin?r , 2006,
Abstract: As a special form of occlusive wound dressing, vacuum sealing ensures particularly favorable preconditions for wound healing by creating a physiological, moist-warm wound environment at slightly negative atmospheric pressures (ca. 40 kPa).
Clinical governance in a changing NHS
Wim Schellekens
International Journal of Integrated Care , 2006,
Rethinking Open Innovation Beyond the Innovation Funnel
Wim Vanhaverbeke
Technology Innovation Management Review , 2013,
Abstract: In his article, I first argue that open innovation can be applied in situations where companies do not themselves develop new products or services. As a consequence, open innovation becomes relevant for a much larger group of organizations than previously considered. Second, I argue that open-innovation scholars have insufficiently differentiated open-innovation initiatives in terms of their impact on companies’ growth: some open-innovation initiatives lead to incremental innovations in an existing business while, in other cases, open-innovation initiatives are used to establish completely new businesses. Both arguments illustrate the need to integrate open-innovation initiatives into the strategy of the firm.
Wim Christiaens
Philosophica , 2001,
Learning from the Bell-Inequalities: Causality, Locality and Realism
Wim Tytgat
Philosophica , 1994,
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