Browsing NTNU Open by Author "He, Jianying"
Now showing items 1-20 of 242
-
A method for determining material's equivalent stress-strain curve with any axisymmetric notched tensile specimens without Bridgman correction
Tu, Shengwen; Ren, Xiaobo; He, Jianying; Zhang, Zhiliang (Journal article, 2017)Large deformation analyses of problems such as plastic forming, ductile fracture with finite element method need a full range of material's equivalent stress-strain curve or flow stress-strain curve. The equivalent ... -
A New Method for Measuring the Ice Adhesion Strength of Anti-Icing Coatings
Vågenes, Elisabeth Tanami (Master thesis, 2014)This work provides a new method for measuring the ice adhesion strength of anti-icing coatings. An extensive literature review was performed to investigate the different means by which other researchers have performed ice ... -
A new method to estimate the residual stresses in additive manufacturing characterized by point heat source
Sun, Li; Ren, Xiaobo; He, Jianying; Olsen, Jim Stian; Pallaspuro, Sakari; Zhang, Zhiliang (Journal article; Peer reviewed, 2019)Residual stress in additive manufacturing (AM) is one of the key challenges in terms of structural integrity and finish quality of printed components. Estimating the residual stress distribution on additively manufactured ... -
A novel Characterization Method for electric Properties of single Silver-coated Polymer Spheres
Stokkeland, August Emil Tobiesen (Master thesis, 2015)The electrical properties of isotropic conductive adhesives (ICAs) are dependent on the filler concentration and electrical properties of the conductive additives. ICAs with metal-coated polymer spheres (MPS) are an efficient ... -
A review on wetting and water condensation - perspectives for CO2 condensation
Snustad, Ingrid; Røe, Ingeborg Treu; Brunsvold, Amy; Ervik, Åsmund; He, Jianying; Zhang, Zhiliang (Journal article, 2018)Liquefaction of vapor is a necessary, but energy intensive step in several important process industries. This review identifies possible materials and surface structures for promoting dropwise condensation, known to increase ... -
A SERS Study on the Assembly Behavior of Gold Nanoparticles at Oil/Water Interface
Wang, Mao; Zhang, Zhiliang; He, Jianying (Journal article; Peer reviewed, 2015)Herein, the assembly behavior of gold nanoparticles (AuNPs) at the oil/water interface is studied by surface-enhanced Raman scattering (SERS) spectroscopy. Two selected chemicals [1-dodecanethiol (DDT) and tetramethylammonium ... -
A special notched tensile specimen to determine the flow stress-strain curve of hardening materials without applying the Bridgman correction
Tu, Shengwen; Ren, Xiaobo; Nyhus, Bård; Akselsen, Odd Magne; He, Jianying; Zhang, Zhiliang (Journal article; Peer reviewed, 2017)Structural integrity assessment of weldments requires the input of flow stress-strain curve of each individual material zone. To cope with these challenges, a cylindrical cross weld tensile specimen with a notch located ... -
A uniform hydrogen degradation law for high strength steels
Yu, Haiyang; Olsen, Jim Stian; Alvaro, Antonio; Olden, Vigdis; He, Jianying; Zhang, Zhiliang (Journal article; Peer reviewed, 2016)The degrading effect of hydrogen on high strength steels is well recognized. The hydrogen degradation is dependent not only on hydrogen content, but also on geometric constraints or equivalently, level of stress triaxiality, ... -
Adiponectin reduces bone stiffness; verified in a 3D artificial human bone model in vitro
Haugen, Sigrid; He, Jianying; Sundaresan, Alamelu; Stunes, Astrid Kamilla; Aasarød, Kristin Matre; Tiainen, Hanna; Syversen, Unni; Skallerud, Bjørn Helge; Reseland, Janne Elin (Journal article; Peer reviewed, 2018)Primary human osteoblasts and osteoclasts incubated in a rotating coculture system without any scaffolding material, form bone-like tissue that may be used to evaluate effects of various compounds on mechanical strength. ... -
Ag Nanoparticle-Coated Polystyrene Microspheres for Electromagnetic Interference Shielding Films with Low Metal Content
Cheng, Hua; Liu, Siqi; Wang, Ruiqi; Zhang, Wei; Pan, Rui; Li, Zhe; Gong, Yi; wang, Fangkuo; hu, rui; Ding, Jianjun; Zhang, Xian; Chen, Lin; He, Jianying; Tian, Xingyou (Peer reviewed; Journal article, 2022)The fabrication of thin composite films incorporating metal-based fillers with a delicate structure to achieve high electromagnetic interference shielding effectiveness (EMI SE) at low metal content remains a great challenge. ... -
Angle-Dependent Photoluminescence Spectroscopy of Solution-Processed Organic Semiconducting Nanobelts
Wang, Mao; Gong, Yi; Alzina, Francesc; Sotomayor Torres, Clivia M.; Li, Hongxiang; Zhang, Zhiliang; He, Jianying (Journal article; Peer reviewed, 2017)We report an anomalous anisotropy in photoluminescence (PL) from crystalline nanobelt of an organic small-molecule semiconductor, 6,13-dichloropentacene (DCP). Large-area well-aligned DCP nanobelt arrays are readily formed ... -
Anti-Gas Hydrate Surfaces: Perspectives, Progress and Prospects
Wang, Feng; Ma, Rui; Xiao, Senbo; English, Niall; He, Jianying; Zhang, Zhiliang (Peer reviewed; Journal article, 2021)Mitigating gas-hydrate formation and the subsequent gas-pipeline plugging is of critical importance for ensuring both flow assurance and safety in the exploration and transportation of deep-water resources. Until now, ... -
Anti-icing ionogel surfaces: inhibiting ice nucleation, growth and adhesion
Zhuo, Yizhi; Xiao, Senbo; Håkonsen, Verner; He, Jianying; Zhang, Zhiliang (Peer reviewed; Journal article, 2020)Delaying ice and frost formation is one of the key strategies to mitigate the hazards induced by ice accretion. The current surfaces for delaying ice formation rely on restricting heterogeneous ice nucleation, which fails ... -
Application of nanoindentation testing to study of the interfacial transition zone in steel fiber reinforced mortar
Wang, Xiao Hui; Jacobsen, Stefan; He, Jianying; Zhang, Zhiliang; Lee, Siaw Foon; Lein, Hilde Lea (Journal article; Peer reviewed, 2009)The characteristics of the profiles of elastic modulus and hardness of the steel fiber–matrix and fiber–matrix– aggregate interfacial zones in steel fiber reinforced mortars have been investigated by using nanoindentation ... -
Application of Synchrotron Radiation-Based Fourier-Transform Infrared Microspectroscopy for Thermal Imaging of Polymer Thin Films
Chávez-Ángel, Emigdio; Ng, Ryan C; Sandell, Susanne; He, Jianying; Castro-Alvarez, Alejandro; Sotomayor Torres, Clivia M.; Kreuzer, Martin (Peer reviewed; Journal article, 2023)The thermal imaging of surfaces with microscale spatial resolution over micro-sized areas remains a challenging and time-consuming task. Surface thermal imaging is a very important characterization tool in mechanical ... -
Assembly graphene platelets for bioinspired, stimuli-responsive, low ice adhesion surfaces
Fu, Yuequn; Xiao, Senbo; Skallerud, Bjørn Helge; Zhang, Zhiliang; He, Jianying (Peer reviewed; Journal article, 2022)Design and fabrication of functional materials for anti-icing and de-icing attract great attention from both academic research and industry. Among them, the study of fish-scale-like material has been proved that enabling ... -
Atomic Insights into Hydrogen-Grain Boundary Interactions
Ding, Yu (Doctoral theses at NTNU;2023:120, Doctoral thesis, 2023)Derived from the most abundant element in the universe, hydrogen is the smallest element and, at the same time, a clean, mobile, and efficient energy carrier. Nowadays, hydrogen is regarded as the fuel of future and could ... -
Atomistic dewetting mechanics of Wenzel and monostable Cassie–Baxter states
Xiao, Senbo; Zhang, Zhiliang; He, Jianying (Journal article, 2018)Water adhesion underlies wettabilities, and thus hydrophobicities, and defines surface properties like self-cleaning, icephobicity and many others. The nanomechanics of water adhesion, especially in the dynamic dewetting ... -
Atomistic Insight into Nanofluid Enabled Enhanced Oil Recovery
Chang, Yuanhao (Doctoral theses at NTNU;2023:72, Doctoral thesis, 2023)Nanoparticles (NPs) possess great potential in applications to enhanced oil recovery (EOR) due to their outstanding features of ultra-small size, great surface and interface effect, high sustainability, etc. The underlying ... -
Atomistic Insight into Oil Displacement on Rough Surface by Janus Nanoparticles
Chang, Yuanhao; Xiao, Senbo; Ma, Rui; Zhang, Zhiliang; He, Jianying (Peer reviewed; Journal article, 2022)Janus nanoparticles (NPs) hold great potential in enhanced oil recovery (EOR), although the mechanism remains unclear. In the study, the displacement dynamics of trapped oil in the rough channel by Janus NPs are unraveled ...