The computed tomographic (CT) densities of imaged structures are a function of the CT scanning protocol, the structure size, and the structure density. For objects that are of a dimension similar to the scanner point spread function, CT will underestimate true structure density. Prior investigation suggests that this process, termed contrast reduction, could be used to estimate the strength of ...

An autonomous underwater vehicle (AUV) with less noise and vortices as well as efficient power consumption, is pursued in this research by inspiration of shark swimming. Design, hydrodynamic analysis, modeling, fabrication, navigation, and control of this novel AUV is the main goal of this research. Detailed explanation of the test and experiment with a brief overview on fabrication are provide...

Abstract The stress relaxation behavior and cell wall microstructure of sugi were evaluated after thermal modification. Stress is observed has a broad spectrum, implying various mechanisms. was analyzed using stretched exponential function, namely, the Kohlrausch–Williams–Watts (KWW) which contains two parameters. Moreover, structure amorphous phase in examined by small-angle X-ray scattering (...

Abstract: The recommendation of Polish PN B-03002norm shows a need of quality control of wallelements production, and classified them as elements of category I or II. This classificationis decided in institution of quality control which should provide straight lines diagnostic tools. Requirement of this norm establishing the partial coefficients of wall safety, of wall treats to settlement the ...

The plant cell wall is a highly dynamic structure that changes in response to both environmental and developmental cues. It plays important roles throughout plant growth and development in determining the orientation and extent of cell expansion, providing structural support and acting as a barrier to pathogens. Despite the importance of the cell wall, the signaling pathways regulating its func...

OBJECTIVE The aim of this study was to compare female sexual function after surgical treatment of anterior vaginal prolapse with either small intestine submucosa grafting or traditional colporrhaphy. METHODS Subjects were randomly assigned, preoperatively, to the small intestine submucosa graft (n = 29) or traditional colporrhaphy (n = 27) treatment group. Postoperative outcomes were analyzed...

This 24 months research topic was an industrial driven project jointly conducted by RSAF-Defence Science & Technology Agency, NTU and Pratt & Whitney (PWA)United Technology Research Centre. The first phase was held in PWA mainly on field investigation of stall flutter in fan blades through the RSAF’s On-Job-Training Programme. The second phase was held in NTU for code development in simulation ...

In this paper, load-carrying capacity in steel shear wall (SSW) was estimated using artificial neural networks (ANNs). The SSW parameters including load-carrying capacity (as ANN’s target), plate thickness, thickness of stiffener, diagonal stiffener distance, horizontal stiffener distance and gravity load (as ANN’s inputs) are used in this paper to train the ANNs. 144 samples data of each of th...

Studies of the primary structures of polysaccharides of growing plant cell walls have shown that these structures are far more complex than was anticipated just a few years ago. This complexity can best be appreciated by considering xyloglucan, a hemicellulose present in the cell wall of both monocots and dicots, and rhamnogalacturonan II (RG-II) and rhamnogalacturonan I (RG-I), two structurall...

in spite of the fact that cementitious and concrete materials are mainly used on a large scale and inhuge quantities for roads, dams, bridges and building constructions, the mechanical behavior of thesematerials depends to a great extend on structural elements and phenomena which are effective on amicro and nanoscale. although this is well known by researchers, material producers and engineersf...