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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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- Zhou, Z.X. (author) journal article 2005
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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, Y. (author) journal article 2015
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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
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Cui, X. (author), Green, M.A. (author), Blower, P.J. (author), Zhou, D. (author), Yan, Y. (author), Zhang, W. (author), Djanashvili, K. (author), Mathe, D. (author), Veres, D.S. (author), Szigeti, K. (author)Magnetic and fluorescent hydroxyapatite nanoparticles were synthesised using Al(OH)3-stabilised MnFe2O4 or Fe3O4 nanoparticles as precursors. They were readily and efficiently radiolabelled with 18F. Bisphosphonate polyethylene glycol polymers were utilised to endow the nanoparticles with excellent colloidal stability in water and to incorporate...journal article 2015
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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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Zhou, Y. (author), Jiao, H. (author), Chen, Y. (author), Bauer, G.E.W. (author), Xiao, J. (author)We develop a self-consistent theory for current-induced spin-wave excitations in normal metal/magnetic insulator bilayer structures. We compute the spin-wave dispersion and dissipation, including dipolar and exchange interactions in the magnet, the spin diffusion in the normal metal, as well as the surface anisotropy, spin-transfer torque, and...journal article 2013
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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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Yang, Z. (author), Zhou, Y. (author), Wenninger, J. (author), Uhlenbrook, S. (author)Identifying the causes (climate vs. human Identifying the causes (climate vs. human activities) for hydrological variability is a major challenge in hydrology. This paper examines the flow regime shifts, changes in the climatic variables such as precipitation, evaporation, temperature, and crop area in the semi-arid Hailiutu catchment in the...journal article 2012
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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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Yang, Z. (author), Zhou, Y. (author), Wenninger, J. (author), Uhlenbrook, S. (author), Wan, L. (author)Groundwater is the most important resource for local society and the ecosystem in the semi-arid Hailiutu River catchment. The catchment water balance was analyzed by considering vegetation types with the Normalized Difference Vegetation Index (NDVI), determining evapotranspiration rates by combining sap flow measurements and NDVI values,...journal article 2015
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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
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Zhou, Y.L. (author), Ma, S.Y. (author), Liu, R.S. (author), Luehr, H. (author), Doornbos, E. (author)The controls of merging electrical field, Em, and IMF (interplanetary magnetic field) magnitude, B, on the storm-time changes in upper thermospheric mass density are statistically investigated using GRACE accelerometer observations and the OMNI data of solar wind and IMF for 35 great storms during 2002–2006. It reveals the following: (1) The...journal article 2013
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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
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Zhou, Y. (author), Xiao, J. (author), Bauer, G.E.W. (author), Zhang, F.C. (author)We study the magnetization dynamics of spin valve structures with a free composite synthetic ferromagnet (SyF) that consists of two ferromagnetic layers coupled through a normal metal spacer. A ferromagnetically coupled SyF can be excited into dynamical precessional states by an applied current without external magnetic fields. We analytically...journal article 2013
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- Pan, Dewei (author), Lin, Chengxin (author), Zhou, Zhaoxin (author), Sun, Yuqinag (author), Sun, Yuhao (author) journal article 2018
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Zhou, J. (author), Olson, D.G. (author), Argyros, D.A. (author), Deng, Y. (author), Van Gulik, W.M. (author), Van Dijken, J.P. (author), Lynd, L.R. (author)Cofactor specificities of glycolytic enzymes in Clostridium thermocellum were studied with cellobiose-grown cells from batch cultures. Intracellular glucose was phosphorylated by glucokinase using GTP rather than ATP. Although phosphofructokinase typically uses ATP as a phosphoryl donor, we found only pyrophosphate (PPi)-linked activity....journal article 2013
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- Zhou, Li-Lan (author), Gao, Gao (author), Hijusmans, R.H.M. (author) journal article 2015
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- Zhou, Li (author), Moan, Torgeir (author), Riska, Kaj (author), Su, Biao (author) journal article 2013