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Chapter and Conference Paper
The Application of Neutron Radiography to the Measurement of the Water-Permeability of Concret
The water-permeability of concret is significant for dam, offshore plateform and underwater basement of bridge etc. The traditional measuring method of permeability is the fixed pressure of water method in whi...
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Chapter and Conference Paper
Neutron Radiography Study in Tsinghua University
The work of Neutron Radiography described in this paper was performed at the research reactor of Tsinghua University, which is a pool-type light water reactor with a power of 2 MW. This neutron radiography sys...
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Chapter and Conference Paper
Micromechanical Modelling and Computation of Shakedown with Nonlinear Kinematic Hardening — Including Examples for 2D-Problems
A static shakedown theorem is presented using a micromechanical overlay model which simulates elastic-plastic material behaviour with nonlinear kinematic hardening. It is a generalization of the Melan theorem ...
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Chapter and Conference Paper
Fabrication of Cold-rolled Bi-2223/Ag Single-and Multifilamentary Tapes Using(Bi,Pb)-2212 and CaCuO2 Precursors
Mono-and multifilamentary Bi-2223/Ag tapes were fabricated by the PIT method using precursors which were prepared by two-powder process. In this study, (Bi,Pb)-2212 and CaCuO2 were formed as separate intermediate...
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Chapter and Conference Paper
The Magnetic Resonance Force Microscope
The magnetic resonance force microscope (MRFM) marries the techniques of magnetic resonance imaging (MRI) and atomic force microscopy (AFM), to produce a three-dimensional imaging instrument with high, potenti...
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Chapter and Conference Paper
Size and Interface Dependent Magnetic Properties of Encapsulated Metal Clusters
The properties of magnetic nanoparticles is an area of current active interest with many problems of fundamental importance [1–4]. The nanoscale places particles at the single domain size where the coercivity ...
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Chapter and Conference Paper
Damage Wave Propagation in Elastic-brittle Materials
A theory of damage wave propagation in elastic-brittle materials is developed within the framework of thermodynamics. Because the local extent of damage is a result of microscopic movement of its neighborhood,...
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Chapter and Conference Paper
A Study of Methylsilicone Rubber Damage Behavior Induced by Proton Irradiation
In this paper, the damage behavior of methylsilicone rubber induced by irradiation of protons with 150keV energy was studied. The surface morphologies, tensile strength, Shaw hardness, cross-linking density an...
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Chapter and Conference Paper
New ultra-bright source of entangled photons
A new ultra-bright entangled photon source has been realized using two cascaded type-II crystals. Entanglement of photons originating from any point on the output cones is observed provided that suitable optic...
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Chapter and Conference Paper
Quantum Dot Single Photon Source
Single photon sources play a key role in quantum communication and computation schemes. Using pulsed laser excitation of a single quantum dot (QD), a single photon source that generates a train of single photo...
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Chapter and Conference Paper
Phonon excitations and stability of a Bose-Fermi mixture quantum gas
We consider a mixture of Bose-Einstein condensate and degenerate fermi gas at zero temperature. The phonon spectrum of the condensate is calculated and the stability regime is identified.
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Chapter and Conference Paper
Application of Microacoustical Technique to Study Elastic Properties and Microstructure of New Generation of Bulk Metallic Glasses
Elastic properties of bulk metallic glass (BMG) Pd39Ni10Cu10P21 have been studied basing on sonic velocity data analysis. Different states of the Pd39Ni 10Cu 1 oP21 system (glassy state, super-cooled liquid (SCL)...
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Chapter and Conference Paper
Forensic Imaging of Magnetic Tapes Using Magnetic Garnet Indicator Films
A garnet imager system has been developed for the forensic evaluation of magnetic tapes. The system employs a unique stage design which allows viewing of events on a micron scale, while kee** accurate refere...
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Chapter and Conference Paper
Material Parameters Determining the Band Gaps of Solid-Solid Phononic Crystals
Material parameters directly determining band gaps for general threedimensional phononic crystals are derived from the basic wave equations. These parameters include the mass density ratio, shear modulus ratio...
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Chapter and Conference Paper
Mössbauer spectroscopy database: past, present, future
Mössbauer Spectroscopy is a useful tool for scientific research in many fields, lots of researchers benefited from this technology which discovered by Rudolf Mössbauer. Up to now, there are more than one milli...
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Chapter and Conference Paper
High-Resolution THz Spectroscopy of Biomolecules and Bioparticles: Concentration Methods
During the past several years we have utilized fluidic-chip and waveguide-concentrator technology in combination with high-resolution frequency-domain THz spectroscopy to detect absorption signatures in biomol...
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Chapter and Conference Paper
Investigation of Vibrational Dynamics by Femtosecond Time-Resolved CARS
We report the femtosecond time-resolved CARS in BBO crystal, ethanol, cresyl violet 670 and pyrromethene 650 using the various degrees of freedom such as the timing, polarization and wavelengths of the laser p...
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Chapter and Conference Paper
Attosecond Spatial Control of Electron Wave Packet Emission Dynamics
Using orthogonally polarized two-color laser fields on neon and coincidence momentum imaging we gain access to the Coulomb influence in single ionization on sub-cycle times, and demonstrate a strong electron-e...
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Chapter and Conference Paper
Feature Extraction of Corrosion Acoustic Emission Signals Based on Genetic-Matching Pursuit Algorithm
The acoustic emission (AE) detecting is an effective online tank bottom corrosion monitoring method. It is easy to discover early corrosion. Aiming at random unstable features of AE signals from tank bottom co...
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Chapter and Conference Paper
Separation of the Elastic and Plastic Wave in Electromagnetically Induced Acoustic Emission Testing
In this chapter, a developed electromagnetically induced acoustic emission technique (EMAE) which can be used for nondestructive flaw detection is introduced. This method is different from traditional acoustic...