Naresuan University Journal
Not a member yet
39887 research outputs found
Sort by
Inertial Sensing for Gait Analysis and the Scope for Sensor Fusion
No full textConventional gait analysis systems make use ofcameras and are therefore bounded to a restricted area. In thiswork, we focus on developing a low-cost, wearable gait analysissystem based on inertial sensors, as a suitable ambulatoryalternative to be used in unconstrained locations. The developedsystem is tailored to study lower body motion in terms of gaitparameters and joint kinematics. The main focus is in using theinertial sensors data, e.g. joint acceleration and quaternionrotation readings, for the reconstruction of visually appealingmotion sequences from low-dimensional sensor input. Thisrequires inertial sensor data to be mapped and fused with opticalmotion capture data. For this purpose, we propose to use ahierarchical skeleton model obtained from an optical motioncapture database
Metastasis and Oxidative Stress: Are Antioxidants a Metabolic Driver of Progression?
No full textThe role of reactive oxygen species (ROS) and antioxidants in cancer is controversial because of their context-dependent ability to promote or suppress tumorigenesis. Piskounova et al. (2015) now show that ROS limit distant metastasis: only cells with increased antioxidant capacity are able to succeed in their purpose to metastasize
Measurement of colour flow with the jet pull angle in events using the ATLAS detector at TeV
No full textLarge volume serial section tomography by Xe Plasma FIB dual beam microscopy
No full textGa+ Focused Ion Beam-Scanning Electron Microscopes (FIB-SEM) have revolutionised the level of microstructural information that can be recovered in 3D by block face serial section tomography (SST), as well as enabling the site-specific removal of smaller regions for subsequent transmission electron microscope (TEM) examination. However, Ga+ FIB material removal rates limit the volumes and depths that can be probed to dimensions in the tens of microns range. Emerging Xe+ Plasma Focused Ion Beam-Scanning Electron Microscope (PFIB-SEM) systems promise faster removal rates. Here we examine the potential of the method for large volume serial section tomography as applied to bainitic steel and WC–Co hard metals. Our studies demonstrate that with careful control of milling parameters precise automated serial sectioning can be achieved with low levels of milling artefacts at removal rates some 60× faster. Volumes that are hundreds of microns in dimension have been collected using fully automated SST routines in feasible timescales
Negotiating comfort in low energy housing: The politics of intermediation
No full textOptimising the energy performance of buildings is technically and economically challenging but it also has significant social implications. Maintaining comfortable indoor conditions while reducing energy consumption involves careful design, construction, and management of the built environment and its inhabitants. In this paper, we present findings from the study of a new low energy building for older people in Grenoble, France where conflicts emerged over the simultaneous pursuit of energy efficiency and comfort. The findings contribute to the contemporary literature on the sociotechnical study of buildings and energy use by focusing on intermediation, those activities that associate a technology to end users. Intermediation activities take many forms, and in some cases, can result in the harmonisation or alignment of energy efficiency goals and comfort goals. In other cases, intermediation is unsuccessful, leading to the conventional dichotomy between optimising technical performance and meeting occupant preferences. By highlighting the multiple ways that comfort and energy efficiency is negotiated, we conclude that buildings are provisional achievements that are constantly being intermediated. This suggests that building energy efficiency policies and programmes need to provide opportunities for intermediaries to negotiate the desires and preferences of the multiple stakeholders that are implicated in low energy buildings