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Investigation on the Performance, Cracking Mechanism and Micro-properties of Concrete Incorporated wi
The early age cracking of the concrete occurred before the normal working ofthe members can affect the appearance and the durability of the structure seriously,which had been thought one of the chief causes that lead to the failure ofenginee....
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Influence of Steam-curing System on the Performance of High Strength Concrete
High strength concrete (HSC) is the mainstream development of concrete technology in the 21th century, and has found wide application in various concrete projects, especially in the large-scale key fundamental facilities. Steam curing could....
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Research on Smart Characteristic of Conductive Asphalt Concrete
Asphalt concrete has been widely applied in the pavement of highway and bridge. The conductive behavior of asphalt mixture can be improved with the addition of conductive materials, thus the self-monitoring material can be obtained. The moni....
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Research on the Low-strength Pump Concrete with MFA of High AMF Contents
When prepare low-grade and high-fluid concrete, the high W/C ratio and water consumption are so great that it is reason for segregating and bleeding, and the concrete also has some problems such as bad impervious performance, easy shrinkage....
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Study on Helmet Tracker Utilizing a Position Sensitive Detector
This dissertation is an exploration for the technology of helmet tracking utilizing a position-sensitive detector (PSD). It is involved with the theory of helmet tracking and PSD, mathematical model of helmet tracking, and corresponding prac....
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Research of Piezoresistive Micromachined Gyroscope
Micromachined gyroscopes, which can be used to sense angular veloity, have a variety of applications in auto electronics, inertial navigation and commercial electronics due to their small size, high reliability and low cost. Among the develo....
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Study on Operational Optimization Strategy of Airport Extenged Terminal Area
Airports are in the node position in the whole air transportation system, and airport extended terminal area is always the bottleneck in it. This is an important area, which is worth of focusing, researching and optimizing, if its operationa....
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Sequential and Physical Decomposition Methods for a Layout Design Problem of Spacecraft
Spatial layout design of a spacecraft affects heavily its structure, performance, service life, and the length of its design cycle, the cost of its assembly and maintenance. It is one of the key issues in the global design of spacecraft, whi....
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The Cooperative Co-Evolutionary Differential Evolution and Its Applications for Complex Layout Optimi
At the engineering background of a class of spacecraft layout design, this dissertation aims to provide more efficient layout optimization for layout problems of complex spacecraft using Cooperative Co-Evolutionary Differential Evolution (DE....
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Research on Methods for Conceptual Design of Mechanical Products
Conceptual design is regarded as the most important stage in the product development. Decisions made at this stage have significant influence on factors such as performance, reliability, safety and environmental impact of a product. More imp....
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Research on the Key Technologies of Human-Centered Manufacturing Execution System in Networked Manufa
Manufacturing Execution System (MES) is a new type of manufacturing process-oriented information system for shop floor production management and control. It is a bridge between top-level transaction and low-level control system, and is the k....
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Simulations and Experimental Studies of Valve-less Micropumps Based on MEMS
In order to realize the demand of the quantitative transportation in the microfluidic system, the theoretical analysis, simulations and experimental studies of valve-less micropumps based on MEMS are developed. Diffuser-nozzle micropumps are....
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Applications of Piezoelectric Bimorph Beams on Micromotors and Micro Force Sensors
Piezoelectric sensors and actuators with many advantages including simple structure, fast response, high frequency, and simple driving and measuring circuits, have been extensively applied to ultrasonic devices, precision positioning, detect....
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The Development and Primary Application of Multifunctional Scanning Probe Microscope
Scanning probe microscope (SPM) is a nanometer resolution imaging analysis instrument, it can obtain a resolution beyond the diffraction limit with a small probe tip scanning the sample surface. Sample information in nanometer can be studied....
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Study on Constitutive Model and Damage-induced Permeability Change for Low-porosity Rock Base on Micr
Coupled THM problem has become an important branch of modern rock mechanics, this issue related to many project applications, such as: disposal of nuclear waste, secondary exploitation of petroleum, underground sealing of carbon dioxide, and....
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Experimental Study on the Deformation and Strength Properties of Lightweight Clay-EPS Beads Soil unde
Lightweight clay-EPS beads soil (LCES) is a new geotechnical material, which is light in self-weight, high in strength and therefore has the capacity of self-standing. Besides the adoption of LCES reduces construction time and minimizes the....
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Study on Reinforced Mechanism and Applications in Loose Slopes Using Prestressed Anchor Cables and St
With further economic growth, the large-scale construction engineering isundergoing rapid growth. There are more and more geological problems, such asdeformation, instabilization, collapsing or sliding of slopes. The reinforcing anddeformati....
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Studies on Elastic-plastic Behavior of Cohensionless Soil during Load-decreasing Process
Constitutive relationship of soil plays a key role in soil mechanics. Ubiquitous volume-retraction during load-decreasing process is an important factor leading to liquefaction and failure of saturated sand, which could not be reasonably exp....
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Soil Slope Stability and Reliability Analysis Based on Immune Genetic Algorithm
Soil slope stability analysis is one of the problems encountered frequently in various engineering constructions. How to improve the accuracy, efficiency, and reliability of soil slope stability analysis has been constantly what researchers....
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Study on the Aseismic Dynamic Reliability Analysis and Design Based on the Displacement Method for th
The probabilistic design methods based on reliability theory will no doubt be increasingly applied in the aseismic design of geotechnical engineering structures. As earth-retaining wall are among the most frequently encountered geotechnical....
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Study on Load Bearing Characteristic of Squeezed Branch and Plate Pile with Full-Scale Test and Numer
To increase the bearing capacity of pile, many researches design many kinds ofspecial figure pile, for example, the enlarged diameter pile, enlarged bottom pile anddifferent section pile. The squeezed branch and plate pile is a type of speci....
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Study on Stabilization of Muddy Soil and Mechanical Properties of Stabilized Soil
Cemented soil has been widely used in ground treatment, however, engineering experiences suggested that strength of cemented soil is very slower when the cement is used to treat the muddy soil riched in organica matter and water. Cement mixe....
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Building Blocks & Critical Height of Geosynthetic Reinforced Segmental Retaining Walls
Some important problems of geosynthetic reinforced segmental retaining walls used for beautifying landscape, such as the instability mechanism of wall consisted of new-style building blocks of bionic granite and the utmost wall height of one....
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The Meso Numerical Simulation and the Macro-meso Mechanics Research for Concrete Material
For concrete material, its internal relation between the macro mechanical properties and the meso structure has not been systematically studied. So, in this paper, the meso numerical experiments are carried out firstly. Considering the effec....
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Research on Technical Efficiency of Industrial Water Consumption Based on Stochastic Frontier Analysi
The sustainable utilization of water resource is the stratagem of social and economical development. The core problem to guarantee industrial water is to increase efficiency of industrial water usage. Technical efficiency is of great importa....
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Experimental and Numerical Study on Gas Migration in Landfill of Municipal Solid Waste
With the rapid economic development and urbanization, the generated quantity ofmunicipal solid waste (MSW) increased at high speed in China. Landfill has becomethe main means to deal with MSW in this country. Pollution control and resourcere....
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Study on the Stability of Jointed Slope and the Effect of Bolting and Grouting Reinforcement Method
In resent years, there are more and more large-scale jointed slopeprojects. It becomes more and more complex and important in field ofslope stability. Rock bolt is widely used in slope reinforcement as aregular reinforcement method. When slo....
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Studies of Active Earth Pressures on Retaining Wall
Two classic theories of earth pressures are extensively used in engineering fortheir simply calculated and sharp concept. In Coulomb's theory, the resultant earthpressures are obtained by the force equilibrium of sliding soil and the soil st....
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Research on Soft Clays' Constitutive Relations Based on Hyper-plasticity
Hyper-plasticity is a new method to construct models of soils, which is basedon the first and second law of thermodynamics, and the stress-strain relations can bedetermined by free energy function and dissipation function. This new method ha....
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Experimental Study on Dynamic Characteristics of Lightweight Sand-EPS Beads Soil (LSES)
Lightweight Sand-EPS beads Soil (hereafter as LSES) is a novel geo-material, with sand, cement, EPS beads as its basic soil, cement agent and lightweight material, respectively. After blended with water and then mixed and compacted under dif....