PolyU Institutional Repository
The PolyU IR collects, makes available, showcases, preserves and enhances the discovery of the research and scholarly output created by the PolyU community.
Journal articles, conference papers and presentations, technical reports, theses and dissertations, drawings, maps, datasets, images, videos and any other digital objects can be stored here. Deposited materials will be preserved and made available on the web.
Starting from September 2010,
PolyU Adopts Open Access Policy in Support of Open and Unrestricted Access to Published Research.
Refractive index response characteristic of fiber Bragg grating in a few-mode suspended-core fiber
We fabricated a few-mode germanium-doped suspended-core fiber using the stack-and-draw technique. Bragg grating was successfully inscribed into this fiber and its mode properties as well as refract...
Vitamin C : prospective functional markers for defining optimal nutritional status
Most species of plants and animals synthesize ascorbic acid, but human subjects cannot, making vitamin C an essential component of our diet. Relationships between vitamin C intake and status, and b...
Very sensitive fiber Bragg grating accelerometer using transverse forces with an easy over-range protection and low cross axial sensitivity
The first fiber Bragg grating (FBG) accelerometer using direct transverse forces is demonstrated by fixing the FBG by its two ends and placing a transversely moving inertial object at its middle. I...
Subsideband generation and modulational instability lasing in a fiber soliton laser
We experimentally observed two forms of subsideband generation in the soliton spectrum of a passively mode-locked fiber soliton ring laser. We found that the different forms of subsideband generati...
Polarimetric heterodyning fiber laser sensor for directional acoustic signal measurement
A DBR fiber grating laser acoustic sensor based on polarization beat signal modulation analysis has been demonstrated for directional acoustic signal measurement. The acoustic sensor was fabricated...
In-line microfluidic refractometer based on C-shaped fiber assisted photonic crystal fiber Sagnac interferometer
We propose and demonstrate a highly sensitive in-line photonic crystal fiber (PCF) microfluidic refractometer. Ultrathin C-shaped fibers are spliced in-between the PCF and standard single-mode fibe...
Hybrid silica and laser-dye-doped polymer fiber
We report the fabrication of a hybrid optical fiber with silica core and laser-dye-doped UV curable polymer cladding. Its potential to act as a combined intrinsic light source and FBG sensor is dem...
Frequency synchronization of Fourier domain harmonically mode locked fiber laser by monitoring the supermode noise peaks
In a harmonically mode locked laser, the supermode noise peaks in the RF spectrum can be observed directly because they are separated from the driving frequency and its harmonics of the active mode...
Flattop pulse generation based on the combined action of active mode locking and nonlinear polarization rotation
A pulse-width-tunable 10 GHz flattop pulse (FTP) train is generated based on the combined action of active mode locking and nonlinear polarization rotation pulse shaping. Although the setup was pre...
Fiber Bragg grating strain modulation based on nonlinear string transverse-force amplifier
The only effective method of fiber Bragg grating (FBG) strain modulation has been by changing the distance between its two fixed ends. We demonstrate an alternative that is more sensitive to force ...
Enforcement styles among environmental protection officials in China
Researchers examining regulatory enforcement have found that enforcement styles tend to be contextually determined in Western countries, which has resulted in a divergence in regulatory approach at...
Development and evaluation of pH-responsive single-walled carbon nanotube-doxorubicin complexes in cancer cells
Single-walled carbon nanotubes (SWNTs) have been identified as an efficient drug carrier. Here a controlled drug-delivery system based on SWNTs coated with doxorubicin (DOX) through hydrazone bonds...
Design of photonic crystal fiber for Sagnac interferometric pressure sensing with high sensitivity
We propose a new design of polarization-maintaining photonic crystal fiber for Sagnac interferometric pressure sensing. Simulation demonstrates its pressure sensitivity is enhanced by over 20 times...
Channel selection for multispectral color imaging using binary differential evolution
In multispectral color imaging, there is a demand to select a reduced number of optimal imaging channels to simultaneously speed up the image acquisition process and keep reflectance reconstruction...
Amplified spontaneous emission of side-pumped step-index Rh640 perchlorate-dye-doped polymer optical fiber
Step-index Rhodamine 640 perchlorate-dye-doped polymer optical fiber with a lightly dye-doped core and relatively high dye-doped cladding is fabricated, and its amplified spontaneous emission perfo...
A complex network based model for detecting isolated communities in water distribution networks
Water distribution network (WDN) is a typical real-world complex network of major infrastructure that plays an important role in human's daily life. In this paper, we explore the formation of isola...
An empirical survey of the perceived benefits of implementing the Mandatory Building Inspection Scheme (MBIS) in Hong Kong
Purpose - This paper aims to review the current state of building decay in Hong Kong, and attempts to identify and analyze the perceived benefits of implementing the Mandatory Building Inspection S...
Active control of a turbulent round jet based on unsteady microjets
The manipulation of turbulent jet mixing performance possesses many potential benefits in various industrial applications. This work reports an experimental investigation on the active control of a...
The flow structure around an Ahmed vehicle model and its active control
The lasting high fuel cost has recently inspired resurgence in drag reduction research for vehicles. This work aims to gain a relatively thorough understanding of unsteady predominant coherent stru...
Hybrid FRP-concrete-steel double-skin tubular columns under static and cyclic loading
This thesis presents a systematic study on the structural behavior of hybrid FRP-concrete-steel double-skin tubular columns (hybrid DSTCs) under static and cyclic loading, with particular attention...
Looking for publisher copyright policies on self-archiving?
SHERPA RoMEO to find a summary of permissions that are normally given as part of each publisher's copyright transfer agreement.
Search by journal titles :
Search by publisher names :
RGC's New Policy on Greater Access Permission Request to Publishers
Submit a Paper
To add materials to PolyU IR, use any one of the following channels:
Communities in PolyU IR
Choose a community to browse its collections.