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This paper discuss the optimization of safety, schedule efficiency and cost effectiveness of delivering projects for the mining industry through implementation of pre-assemblies and modularization. This approach helps with reduction of the required on-site labor force by transferring a portion of the required effort-hours off-site. Projects in the mining industry are typically remotely located and...
Visual Simulation, which has been applied widely to provide convenience to people from every walk of life, plays a crucial role in the field of Virtual Reality. In this thesis, 8 models representing 8 typical materials, are created by MultiGen Creator, and rendered by Vega for analysis of relation between grey values in simulated pictures and real radiance. Finally, the method of infrared simulation...
Virtual reality technology has become a main research field of computer development application gradually in recent years. Virtual campus is a specific application of virtual reality technology in the digital campus. The basic principles and key technologies of building virtual campus model are studied in this paper. According to the requirements of virtual reality, virtual campus 3D models are established,...
The testing system based MEMS inertial devices is a kind special measurement system which is integrated with MEMS inertial sensor, ASIC and its corresponding software. Because of having merits such as small bulk, low cost, light weight, high reliability, and anti-harsh environments, it is widely used in the military and civil fields, especially suited for the high-g guided ammunition, but use what...
A causality checker is developed and used to validate and improve S-parameter data computed with a commercial 3D electromagnetic simulator. Improved data quality as shown by the causality checker is demonstrated to fix a flawed SerDes link simulation and an impedance extraction based on a TDR simulation. It is demonstrated that simple examination of the S-parameters cannot differentiate between good...
The green construction is of great significance to promoting the sustainable development strategy of construction industry. The thesis discusses and describes connotation of green construction. According to the contents and concept of green construction technology system, green construction be defined. The environmental loads of green construction can be studied from two aspects of the construction...
The goal of this research is to develop a consistent and repeatable method to evaluate: a) effective thermal conductivity, and b) axial and transverse coefficients of thermal expansion (CTE) of SWCNT (single walled carbon nanotube)-Cu composites, with the view to potentially replacing Cu vias with CNT-Cu TSVs (through-silicon vias) in 3D electronics packaging. Finite element models were built using...
A novel technique has been developed under a DNDO SBIR Program to improve the quality and availability of law enforcement and first responder training in the use of Preventative Radiological/Nuclear Detection (PRND) equipment. This training method is implemented in a software system designated as RAILS (Realistic and Adaptive Interactive Learning System), which allows trainees to practice finding,...
The CRÈME suite of tools have been extensively used to predict the effects of cosmic rays on microelectronics in space. These tools only consider electronic stopping of ions and nuclear reactions from protons on silicon. Ion-ion physics and the inclusion of additional electronic materials are required to predict large energy deposition events. The successor to the rate prediction tools, CRÈME-MC,...
Four French Grandes Écoles (Engineering and Business Schools) of PARISTECH open in October 2010 an education program which main objective is the impact study of the massive insertion of electrical energy in autonomous vehicles. The program with a common core curriculum and two different options is described.
In an excitation system of a certain type synchronous motor, current sensor for detection and protection often works under abnormal conditions. It leads to inability to play the role of the normal current detection, or even false tripping down the serious accidents. This failure is mainly generated by electromagnetic interference. Finite element analysis software is used to build the main circuit...
WLAN RSS-based localization has been a hot research topic for the last years. To obtain high accuracy in the noisy wireless channel, WLAN location determination systems usually use a calibration phase, where a radio map, capturing the signal strength signatures at different locations in the area of interest, is built. The radio map construction process takes a lot of time and effort, reducing the...
In order to study the geological factors which impact penetrating rate of TBM, three-dimensional discrete element model 3DEC was used to build simulated models on rock fragment by TBM cutter. The influence of different geological conditions on TBM penetrating rate was analyzed. The surrounding rock in west route of South-to-North Transfer Project was classified according to the drill ability of TBM...
The design and experiment of a phase reconfigurable RA unit cell enabled by a COSMIX was proposed. A phase shift of 200° was demonstrated at 3 GHz with only 1.2 dB of loss. Deviations were observed between the measured and simulated results but the trends are in agreement. The 0.4 dB baseline loss shown is a measurement of the waveguide with no patch or other materials present. Additional losses may...
The paper presents a review of the bronze casting methods: the traditional casting in loam or sand molds, issuing high quality products thanks to the slow cooling rate that produces a favorable granularity and the modern precise, fast and cheap casting. We propose a new coated casting method. Coating/uncoating the cooling casting with few flexible insulating layers with different thermal resistances...
Information promotes and boosts up the competion of enterprises;Information integration is an important content. Characteristic of single-piece and small-lot is different from the other manufacture mode, so its information integration is different from the others too. The paper aims at the questions, analyses the content and relation of information integration based on single-piece and small-lot,...
Widespread use of the Web 2.0 Internet applications such as video streaming and social networking are continuously demanding higher bandwidth network equipment. Electrical designers increasingly face more and more challenges to deliver higher speed products within short development cycle due to design complexity and new multi-GHz signal integrity problems. This paper presents a modeling and simulation...
The paper introduces the issue of the typical defects in PhotoVoltaic (PV) cells and focuses the attention on two specific defects: linear edge shunt and hole. These defects are modeled by means of Finite Element Method (FEM) and implemented in Comsol Multiphysics environment in order to analyze the temperature distribution in the whole defected PV-cell. Usually the defects reveal themselves as hot...
Preservation and conservation of traditional craft in our community is greatly important and need further attention to ensure the continuity of traditional heritage remains to future generations. Thus, to conserve teaching and learning of traditional crafts, a new model of virtual teaching and learning traditional craft will be developed. In order to capture the learning components for the model,...
Machining simulation and deformation prediction are effective approaches to improve machining error in processing thin-walled parts. However, the empirical studies are still insufficient to improve this problem. This paper uses the finite element method, through cutting process modeling, material removal modeling and calculating the initial residual stresses in machining process to predict and analyze...
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