- document
-
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
- document
-
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
- document
-
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
- document
-
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
- document
- Zhou, J. (author), Qu, L. (author) journal article 2009
- document
-
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
- document
-
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
- document
-
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
- document
-
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
- document
-
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
- document
-
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
- document
-
Huan, Z. (author), Zhou, J. (author), Duszczyk, J. (author)In this study, bioactive glass (BG, 45S5) particles were added to a biodegradable magnesium alloy(ZK30) through a semi-solid high-pressure casting process in order to improve the surface biocompatibility of the biomaterial and potentially its bioactivity. The observation of the as-cast microstructures of ZK30-BG composites indicated homogeneous...journal article 2010
- document
-
Zhou, J. (author)Nowadays, wireless networks are used in most of the applications with radio technologies being used in all kinds of wireless networks. In all wireless links, the transmitted packets can be lost. How to identify the quality of a certain wireless link and achieve the best delivery performance over a certain wireless network is an open issue. In...doctoral thesis 2010
- document
-
Eivani, A.R. (author), Valipour, S. (author), Ahmed, H. (author), Zhou, J. (author), Duszczyk, J. (author)In this article, a new relationship for the calculation of the Zener drag pressure is described in which the effect of the size distribution of nanoscale dispersed particles is taken into account, in addition to particle radius and volume fraction, which have been incorporated in the existing relationships. Microstructural observations indicated...journal article 2010
- document
-
Zhou, H. (author)This project was conducted as a master thesis for Master program Strategic Product Design of Delft University of Technology in cooperation with XSPlatforms. The aim of this project was to 1) research and analyze the current brand and create promising brand values for future development 2) based on the new brand value, create a form signature...master thesis 2010
- document
-
Zhou, J. (author)Background and goals of this thesis The concrete repair, rehabilitation and retrofitting industry grows rapidly, driven by deterioration of, damage to and defects in concrete structures. However, it is well known that to achieve durable concrete repairs is very difficult. The failure of concrete repairs causes high economical, social and...doctoral thesis 2011
- document
-
Zhou, J. (author), Jacobsson, M. (author), Onur, E. (author), Niemegeers, I. (author)Wireless ad hoc networks will be an important component in future communication systems. The performance of wireless ad hoc networks can be improved by link quality-aware applications. Wireless link quality is dynamic in nature, especially in mobile scenarios. Therefore, accurate and fast packet delivery ratio estimation is a prerequisite to...journal article 2011
- document
-
Miorali, M. (author), Zhou, F. (author), Slob, E.C. (author), Arts, R. (author)The recent introduction of smart well technology allows for new geophysical monitoring opportunities. Smart wells, which allow zonal production control, combined with monitoring techniques capable of capturing the arrival of undesired fluids, have the potential to significantly increase the oil recovery. We consider borehole radar as a valuable...journal article 2011
- document
- Zhou, Y. (author) master thesis 2011
- document
-
Zhou, Z. (author)As a good rule of thumb, one-line models have been in use for a wide range of coastal projects for the past 30 years to predict the beach morphological change and make the appropriate shoreline management plans. Though applied to many coastal sites with certain success, these models are still under further development so as to achieve better...master thesis 2011