88 Result(s)
-
Article
Experimental and Numerical Investigations on the Spherical Steel Bearing Capacity of New Anti-Separation Design
To solve the issues of slippage and dislodging caused by insufficient grout compactness in railway bridge spherical steel bearings, a novel kind of anti-separation spherical steel bearing is presented. Firstly...
-
Chapter and Conference Paper
Pore Structure Characterization of Cement Paste by XCT and FIB/SEM
Many durability properties of cement-based materials, such as water permeability, chloride diffusivity and CO2 diffusivity, are closely related to their pore structures. As a porous material, cement paste has a w...
-
Article
Confinement properties of circular concrete columns wrapped with prefabricated textile-reinforced fine concrete shells
This paper proposes an innovative column composed of a core column (including both reinforced concrete (RC) and plain concrete (PC) columns) and a prefabricated textile-reinforced fine concrete (TRC) shell. To...
-
Article
Risk Assessment and Mitigation Evaluation for Rockfall Hazards at the Diversion Tunnel Inlet Slope of **chuan Hydropower Station by Using Three-dimensional Terrestrial Scanning Technology
Rockfall is a major geological disaster that frequently occurs on rock slopes in alpine and gorge regions and poses a significant threat to life and property in areas exposed to rockfall hazards. In this study...
-
Article
Effect of droplet superficial velocity on mixing efficiency in a microchannel
In this study, droplet characteristics including droplet length and formation time, and mixing efficiency in droplets were investigated via the volume of fluid (VOF) method coupled with a user defined scalar (...
-
Article
Three-dimensional flow field mathematical model inside the pilot stage of the deflector jet servo valve
A new flow field mathematical model is proposed to describe accurately the flow field structure and calculate the static characteristics of the pilot stage in a deflector jet servo valve (DJSV). The flow field...
-
Article
Structural performance assessment by acceleration measurements based on null space method and fast independent component analysis for the frame-shear wall structure under earthquake wave
In this study, a novel two-stage plastic-state detection strategy is studied. In the first stage, discrete wavelet transform (DWT) is used to obtain the low-frequency response signal. The Hankel matrix is cons...
-
Article
Evolution of the early compressive strength of cement-slag pastes with CaO-based expansive agent
Due to the rapid hydration of CaO-based expansive agent (CEA) in the early age, besides deformation, the early mechanical performance of marine concrete blended with CEA may also be affected. However, the mech...
-
Article
Application of machine learning algorithms for the evaluation of seismic soil liquefaction potential
This study investigates the performance of four machine learning (ML) algorithms to evaluate the earthquake-induced liquefaction potential of soil based on the cone penetration test field case history records ...
-
Article
Evaluation of liquefaction-induced lateral displacement using Bayesian belief networks
Liquefaction-induced lateral displacement is responsible for considerable damage to engineered structures during major earthquakes. Therefore, an accurate estimation of lateral displacement in liquefaction-pro...
-
Article
A step forward towards a comprehensive framework for assessing liquefaction land damage vulnerability: Exploration from historical data
The unprecedented liquefaction-related land damage during earthquakes has highlighted the need to develop a model that better interprets the liquefaction land damage vulnerability (LLDV) when determining wheth...
-
Article
Methodology for expressing the flow coefficients of coupled throttling grooves in a proportional—directional valve
Calculating the flow coefficient of a spool-valve is complicated due to the coupling-throttling effect in the throttling grooves of a proportional-directional valve. In this paper, a methodology for expressing...
-
Article
Parametric study on the Multangular-Pyramid Concave Friction System (MPCFS) for seismic isolation
A series of comprehensive parametric studies are conducted on a steel-frame structure Finite-Element (FE) model with the Multangular-Pyramid Concave Friction System (MPCFS) installed as isolators. This new int...
-
Article
Thermal cracking characteristics of high-temperature granite suffering from different cooling shocks
Cooling shock can be considered a potential method of causing the high-temperature rocks to crack and achieve the most efficient exploitation and utilization of geo-thermal energy in the future. However, it is...
-
Article
Effects of curing temperature and superabsorbent polymers on hydration of early-age cement paste containing a CaO-based expansive additive
The early-age shrinkage can easily result in crack of concrete in the early age, which seriously affects the durability of concrete. The CaO-based expansion additive is a normally used and effective material f...
-
Article
Evolution and distribution characteristics of fluorine during the incineration of fluorine-containing waste in a hazardous waste incinerator
In this study, the evolution and distribution of fluorine during the incineration of fluorine-containing waste in a hazardous waste incinerator were investigated. The evolution characteristics of fluorine duri...
-
Article
Research laboratory for Smart Control Valves at Zhejiang University
目前大中型控制阀大多存在结构复杂、驱动能耗 大、反应时间慢、振动噪声大、稳定性差和使用 寿命短等缺点。基于此, 浙江大学相关研究人员 组建了特种控制阀研究室, 致力于提升控制阀的 整体性能和设计水**。
-
Article
High Precision FE Modeling for Predicting Inner Polygon Defect of Hot Rolled Seamless Steel Tubes
A high precision FE model is the key basis for cause analysis and overcoming of inner polygon defect of hot rolled seamless steel tubes. In this paper, the viscoelastic-plastic FEM is adopted in order to devel...
-
Article
Dynamic Response of Lunar Soil Caused by Landing Impact
In recent years, there is an increasing interest on lunar exploration and future utilization of lunar resources. Technology of landing is a key in order to establish frequent access to the lunar surface. For a...
-
Article
Digital Image-based Identification Method for the Determination of the Particle Size Distribution of Dam Granular Material
The Particle Size Distribution (PSD) properties of dam granular material plays an important role in the construction process of earth-rock dams, as it can affect the filling quality and structural safety. Howe...
