- document
-
Ye, Xiaotong (author), Leeflang, M.A. (author), Wu, Chengtie (author), Chang, Jiang (author), Zhou, J. (author), Huan, Z. (author)Porous Ti-6Al-4V scaffolds fabricated by means of selective laser melting (SLM),<br/>having controllable geometrical features and preferable mechanical properties, have been developed as a class of biomaterials that hold promising potential for bone repair. However, the inherent bio-inertness of the Ti-6Al-4V alloy as the matrix of the scaffolds...journal article 2017
- document
-
Sun, B. (author), Fan, Xuejun (author), Li, Lei (author), Ye, H. (author), van Driel, W.D. (author), Zhang, Kouchi (author)This paper studies the interaction of catastrophic failure of the driver and LED luminous flux decay for an integrated LED lamp with an electrolytic capacitor-free LED driver. Electronic thermal simulations are utilized to obtain the lamp's dynamic history of temperature and current for two distinct operation modes: constant current mode (CCM...journal article 2017
- document
-
Hu, Fa-Fei (author), Tang, H. (author), Ye, H. (author), Chen, X. (author), Zhang, Kouchi (author)The sensing behavior of monolayer tin sulfide (SnS) for four gas molecules (NH<sub>3</sub>, NO<sub>2</sub>, CO, and H<sub>2</sub>O) are studied by the first-principle calculation based on density-functional theory. We calculate adsorption energy, adsorption distance, and Hirshfeld charge to estimate the adsorption ability of monolayer SnS for...journal article 2017
- document
-
Tang, H. (author), Ye, H. (author), Wong, K.Y. (author), Leung, Stanley Y.Y. (author), Fan, Jiajie (author), Chen, Xianping (author), Fan, Xuejun (author), Zhang, Kouchi (author)The objective of this study is to quantitatively evaluate the impacts of LED components on the overdriving reliability of high power white LED chip scale packages (CSPs). The reliability tests under room temperature are conducted over 1000 h in this study on CSP LEDs with overdriving currents. A novel method is proposed to investigate the...journal article 2017
- document
-
Sherzer, G. (author), Gao, P. (author), Schlangen, E. (author), Ye, G. (author), Gal, E. (author)Modeling the complex behavior of concrete for a specific mixture is a challenging task, as it requires bridging the cement scale and the concrete scale. We describe a multiscale analysis procedure for the modeling of concrete structures, in which material properties at the macro scale are evaluated based on lower scales. Concrete may be viewed...journal article 2017
- document
-
Zhang, Y. (author), Ye, G. (author)In this paper, a new analytic model for predicting chloride diffusivity in unsaturated cementitious materials is developed based on conductivity theory and Nernst-Einstein equation. The model specifies that chloride diffusivity in unsaturated cementitious materials can be mathematically described as a function of chloride diffusivity in...conference paper 2017
- document
-
Phan, M.H. (author), Reniers, A.J.H.M. (author), Ye, Qinghua (author), Stive, M.J.F. (author)The coastal zone of Mekong delta is suffering under intense pressures from climate change as well as human intervention. Currently, the coastline evolution of Mekong delta is a complex combination of impacts due to (1) relative sea level rise i.e. the sum of eustatic sea level rise, natural and human induced subsidence (2) sediment transport...conference paper 2017
- document
- Aldin, Zainab (author), Nedeljković, Marija (author), Lukovic, M. (author), Liu, Jiahua (author), Blom, Kees (author), Ye, G. (author) conference paper 2017
- document
-
Ye, M. (author), Lofi, C. (author), Tintarev, N. (author)This paper evaluates whether semantic grouping of reviews helps users make better decisions. Reviews rated as helpful were compared with semantically grouped reviews. While participants did not perceive a reduced effort (using NASA-TLX), they needed less time and performed better on answering questions about the strong,<br/>weak and...conference paper 2017
- document
-
Zhang, Y. (author), Ye, G. (author)Experiments are carried out to investigate the chloride diffusivity in partially saturated ordinary Portland cement mortars with water-to-cement (w/c) ratios of 0.4, 0.5 and 0.6. Based on resistivity measurement and Nernst-Einstein equation, the chloride diffusivities of cement mortars at various water saturations are estimated. The pore...conference paper 2017
- document
-
Lukovic, M. (author), Šavija, B. (author), Ye, G. (author), Schlangen, E. (author), van Breugel, K. (author)Corrosion of steel reinforcement is the main cause of deterioration in reinforced concrete structures. It can result in cracking and spalling of the concrete cover. After the damaged cover is repaired, reinforcement corrosion might continue and even accelerate. While the development of the corrosion cell is difficult to control, the damage can...journal article 2017
- document
-
Han, Haoya (author), Li, Li (author), Tian, Yuchuan (author), Wang, Yunwei (author), Ye, Zhishuang (author), Yang, Qingsong (author), Wang, Y. (author), Von Klitzing, Regine (author), Guo, Xuhong (author)Hollow silica nanoparticles were prepared through generating a silica layer in spherical polyelectrolyte nanogels (SPN), which consisted of a solid core of polystyrene (PS) and a shell of crosslinked poly(acrylic acid) (PAA), followed by removing the PS core via solvent dissolution. Small angle X-ray scattering (SAXS) in combination with TEM...journal article 2017
- document
-
De Koning, R.E. (author), van Nes, A. (author), Ye, Y. (author), Roald, H.J. (author)Bergen city in Norway is presently undergoing an enormous population growth. In this respect, Bergen municipality wanted to identify all the possibilities for densification in the current situation. Therefore, the following issues were evaluated: street network and public transport accessibility, building density, degree of functional...conference paper 2017
- document
-
Zheng, Kunpeng (author), Lukovic, M. (author), de Schutter, Geert (author), Ye, G. (author), Taerwe, Luc (author)This work aims at providing a better understanding of the mechanical properties of the reaction rim in the alkali-silica reaction. The elastic modulus of the calcium alkali silicate constituting the reaction rim, which is formed at the interface between alkali silicate and Ca(OH)2 in a chemically-idealized system of the alkali-silica reaction...journal article 2016
- document
-
Chen, J. (author), Liu, Xian (author), Ye, G. (author)Microcracks play vital roles in the prediction of the service life of concrete structure. Because microcracks in concrete structure are the preferential ingression channels for aggressive ions, e.g., chloride, sulphate, etc. However, microcracks have potentials to self-heal autogenously due to the continuous hydration of unhydrated cement,...conference paper 2016
- document
-
Sherzer, G. (author), Gao, P. (author), Ye, G. (author), Gal, E. (author)The heterogeneity of the concrete may be considered on different size scales of observation, ranging from the atomistic scale (10-10m), characterized by the behavior of crystalline particles of hydrated Portland cement, to the macroscopic scale (101 m), where concrete has traditionally been considered homogeneous. The multiscale framework we are...conference paper 2016
- document
-
Zheng, Kunpeng (author), Adriaensens, Peter (author), De Schutter, Geert (author), Ye, G. (author), Taerwe, Luc (author)This work is intended to provide a better understanding about the properties and roles of the reaction rim in an alkali-silica reaction. A simplified calcium-alkali-silicate system was created to simulate the multiple interactions among reactive silica, alkaline solution and portlandite near the aggregate surface during the formation and...journal article 2016
- document
-
Lukovic, M. (author), Šavija, B. (author), Schlangen, E. (author), Ye, G. (author), van Breugel, K. (author)Differential shrinkage between repair material and concrete substrate is considered to be the main cause of premature failure of repair systems. The magnitude of induced stresses depends on many factors, for example the degree of restraint, moisture gradients caused by curing and drying conditions, type of repair material, etc. Numerical...journal article 2016
- document
-
Huang, H. (author), Ye, G. (author), Pel, Leo (author)The aim of this study is to investigate the effect of water migration from cracks into the bulk paste on autogenous self-healing. Nuclear magnetic resonance (NMR) technique was utilized to monitor water migration from cracks into the bulk paste during the process of autogenous self-healing. NMR results show that initially the water in the...journal article 2016
- document
-
Arbi Ghanmi, K. (author), Nedeljković, Marija (author), Zuo, Y. (author), Ye, G. (author)Alkali-activated materials (AAMs) have high potential as alternative binder to ordinary portland cement (OPC), because of their high performance beside lower CO<sub>2</sub> emissions. While there is a general consensus about their strength advantages over OPC, there is a widespread debate regarding their durability. Some groups believe that...journal article 2016