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Lua, E.K. (author), Zhou, X. (author)Peer-to-Peer (P2P) overlay networks can be utilized to deploy massive Internet overlay services such as multicast, content distribution, file sharing, etc. efficiently without any underlying network support. The crucial step to meet this objective is to design network-aware overlay network topologies connecting all nodes that offer promising...conference paper 2007
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Gross, H.G. (author), Lormans, M. (author), Zhou, J. (author)One of the first steps of component procurement is the identification of required component features in large repositories of existing components. On the highest level of abstraction, component requirements as well as component descriptions are usually written in natural language. Therefore, we can reformulate component identification as a text...report 2007
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Slooff, F.A. (author), Zhou, J. (author), Duszczyk, J. (author), Katgerman, L. (author)The commonly used hyperbolic sine constitutive equation for metal forming at elevated temperatures, with no strain incorporated, is in principle applicable only to deformation in the steady state. However, the actual deformation processes applied to magnesium alloys are mostly in the non-steady state. In the present research, the results of hot...journal article 2008
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Eivani, A.R. (author), Ahmed, H. (author), Zhou, J. (author), Duszczyk, J. (author)The presence of large constitutive particles formed during solidification decreases the strength and hot workability of aluminum alloys especially when they are located in the grain boundary (GB) regions. Therefore, the evolution of these phases is a major issue in the homogenization process of these alloys. There is a lack of information on the...journal article 2009
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mao, R. (author), Yu, S.C.M. (author), Zhou, T. (author), Chua, L.P. (author)Lobe-forced mixer is one typical example of the passive flow controllers owing to its corrugated trailing edge. Besides the spanwise Kelvin–Helmholtz vortex shedding, streamwise vortices are also generated within its mixing layer. The geometrical configuration of the lobe significantly affects these two types of vortices, which in turn affects...journal article 2009
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Zhou, Y. (author), Bauer, P. (author), Ferreira, J.A. (author), Pierik, J. (author)Doubly fed induction generator (DFIG) still shares a large part in today's wind power market. It provides the benefits of variable speed operation cost-effectively, and can control its active and reactive power independently. Crowbar protection is often adopted to protect the rotor-side voltage source converter (VSC) from transient overcurrent...journal article 2009
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Kleinknecht, A. (author), Dekker, R. (author), Zhou, H. (author)Firms with high shares of workers on fixed-term contracts have significantly higher sales of imitative new products but perform significantly worse on sales of innovative new products (“first on the market”). High functional flexibility in “insider-outsider” labor markets enhances a firm’s new product sales, as do training efforts and highly...journal article 2009
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Wang, L. (author), Cai, J. (author), Zhou, J. (author), Duszczyk, J. (author)Appropriate specification of the frictional boundary condition for the finite-element (FE) simulation of metal-forming processes is of great importance to the trustworthiness of the results. The research reported in this communication aimed at understanding the interfacial contact between aluminium and steel at elevated temperatures and...journal article 2009
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Eivani, A.R. (author), Ahmed, H. (author), Zhou, J. (author), Duszczyk, J. (author)This research concerns the effect of homogenization treatment on the electrical resistivity of AA7020 aluminum alloy variants with different Zr and Cr contents. Small changes in the Zr and Cr contents of the as-cast alloy increase the electrical resistivity significantly. After employing various homogenization treatments, the electrical...journal article 2009
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Zhou, J. (author), Qian, S. (author), Sierra Beltran, M.G. (author), Ye, G. (author), Van Breugel, K. (author), Li, V.C. (author)Nowadays limestone powder and blast furnace slag (BFS) are widely used in concrete as blended materials in cement. The replacement of Portland cement by limestone powder and BFS can lower the cost and enhance the greenness of concrete, since the production of these two materials needs less energy and causes less CO2 emission than Portland cement...journal article 2009
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Zhou, Y. (author)As power capacities of single wind turbine, single wind park and total wind power installation are continuously increasing, the wind power begins to challenge the safety operation of the power system. This thesis focuses on the grid integration aspects such as the dynamic behaviours of wind power during disturbances, and dynamic behaviours of...doctoral thesis 2009
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Van der Hoeven, F.D. (author), Brand, N. (author), Van der Burg, L. (author), Çal??kan, O. (author), Tan, E.R. (author), Wang, C.Y. (author), Zhou, J. (author)To ensure the quality of the Ph.D. research the Department introduced a special procedure for periodic evaluation: after a period of nine months the potential Ph.D. candidates are asked to present their research design, theoretical framework and methodological approach to the members of the Department and to an external review, drawn up by the...book 2009
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Huan, Z. (author), Chang, J. (author), Zhou, J. (author)A low-temperature fabrication method for highly porous bioactive scaffolds was developed. The two-step method involved the foaming of tricalcium silicate cement paste and hydration to form calcium silicate hydrate and calcium hydroxide. Scaffolds with a combination of interconnected macro- and micro-sized pores were fabricated by making use of...journal article 2009
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- Zhou, J. (author), Qu, L. (author) journal article 2009
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Dekker, R (author), Kleinknecht, A.H. (author), Zhou, H (author)Firms with high shares of workers on fixed-term contracts have significantly higher sales of imitative new products but perform significantly worse on sales of innovative new products (“first on the market”). High functional flexibility in “insider-outsider” labor markets enhances a firm’s new product sales, as do training efforts and highly...working paper 2010
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Zhou, J. (author), Quian, S. (author), Van Breugel, K. (author)Engineered cementitious composite (ECC) is an ultra ductile cement-based material reinforced with fibers. It is characterized by high tensile ductility and tight crack width control. Thanks to the excellent performance, ECC is emerging in broad applications to enhance the loading capacity and the durability of structures. However, ECC also faces...conference paper 2010
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Qian, S. (author), Li, V.C. (author), Zhou, J. (author)Strain hardening cementitious composites (SHCCs) have seen increasing field applications in past decade, yet existing quality control test methods for tensile properties are sometime difficult to implement. This paper presents a new simple inverse method for quality control of tensile strain capacity by conducting beam flexural test. It is shown...conference paper 2010
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Huan, Z.G. (author), Leeflang, M.A. (author), Zhou, J. (author), Fratila-Apachitei, L.E. (author), Duszczyk, J. (author)Zinc and zirconium were selected as the alloying elements in biodegradable magnesium alloys, considering their strengthening effect and good biocompatibility. The degradation rate, hydrogen evolution, ion release, surface layer and in vitro cytotoxicity of two Mg–Zn–Zr alloys, i.e. ZK30 and ZK60, and a WE-type alloy (Mg–Y–RE–Zr) were...journal article 2010
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Zhou, Q. (author), Mayer, I.S. (author)At the science - policy interface there are several reasons to combine models with the participatory process to facilitate the complex policy making process but the communication of the two sides is often too hard to generate any meaningful results. In this paper we argue that to close the communication gap the rationale of the Meta – rule of...conference paper 2010
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Zhou, J. (author), Jacobsson, M. (author), Niemegeers, I. (author)Today, many wireless devices are mobile and battery powered. Based on the fact that battery capacity is still limited, energy saving is an important issue in wireless communication.Meanwhile, the number of wireless devices continues to increase and this creates interference problems between wireless devices. In this paper, we look at...journal article 2010