Mobile Geographical Information System: Using Personal Digital Assistant to Monitor Vehicle Navigation

Geographic analysis has been around longer than maps; probably back thousands of years when early humans planned hunting and movement. Perhaps the first GIS were scratches in the dirt or sand. Traditionally, highly skilled cartographers spent many hours drawing maps, and map users labored over the analytical tasks. Modern GIS arrived when computers became powerful, easier to operate, more affordable, and generally available to many users. Technology has created many changes, including geography, data, and methods of analysis. Modern GIS is a new paradigm, even more so when Modern GIS goes mobile. The rapid growth in mobile telecommunications and internet business is living proof of a radical change in today's information society and infrastructure. The current phase in this development is the continued increase in total mobility with wideband services. This paper explores GIS in the mobile environment using commercial-off-the-shelf (COTS) components. It sees the research on GIS, focusing on GIS in mobile environment. It presents the ideaof applying GIS concept in vehicle tracking, where mobile GIS will couple up with GPS as a vehicle movement monitoring tool. The Reuse-Oriented Development Model is used as guidance for the project progress. The methodology is suitable as it stresses on component reuse. It encourages timely completion of the project. A simulation of vehicle tracking and navigating concept would be presented as the findings of the research. The simulation presents the idea of real-time tracking of a moving vehicle using data output from the GPS.

Mobile Geographical Information System: Using Personal Digital Assistant to Monitor Vehicle Navigation

Geographic analysis has been around longer than maps; probably back thousands of years when early humans planned hunting and movement. Perhaps the first GIS were scratches in the dirt or sand. Traditionally, highly skilled cartographers spent many hours drawing maps, and map users labored over the analytical tasks. Modern GIS arrived when computers became powerful, easier to operate, more affordable, and generally available to many users. Technology has created many changes, including geography, data, and methods of analysis. Modern GIS is a new paradigm, even more so when Modern GIS goes mobile. The rapid growth in mobile telecommunications and internet business is living proof of a radical change in today's information society and infrastructure. The current phase in this development is the continued increase in total mobility with wideband services. This paper explores GIS in the mobile environment using commercial-off-the-shelf (COTS) components. It sees the research on GIS, focusing on GIS in mobile environment. It presents the ideaof applying GIS concept in vehicle tracking, where mobile GIS will couple up with GPS as a vehicle movement monitoring tool. The Reuse-Oriented Development Model is used as guidance for the project progress. The methodology is suitable as it stresses on component reuse. It encourages timely completion of the project. A simulation of vehicle tracking and navigating concept would be presented as the findings of the research. The simulation presents the idea of real-time tracking of a moving vehicle using data output from the GPS.

Aerosol meteorology of Maritime Continent for the 2012 7SEAS southwest monsoon intensive study - Part 2: Philippine receptor observations of fine-scale aerosol behavior

Abstract. The largest 7 Southeast Asian Studies (7SEAS) operations period within the Maritime Continent (MC) occurred in the August–September 2012 biomass burning season. Data included were observations aboard the M/Y Vasco, dispatched to the Palawan Archipelago and Sulu Sea of the Philippines for September 2012. At these locations, the Vasco observed MC smoke and pollution entering the southwest monsoon (SWM) monsoonal trough. Here we describe the research cruise findings and the finer-scale aerosol meteorology of this convectively active region. This 2012 cruise complemented a 2-week cruise in 2011 and was generally consistent with previous findings in terms of how smoke emission and transport related to monsoonal flows, tropical cyclones (TC), and the covariance between smoke transport events and the atmosphere's thermodynamic structure. Biomass burning plumes were usually mixed with significant amounts of anthropogenic pollution. Also key to aerosol behavior were squall lines and cold pools propagating across the South China Sea (SCS) and scavenging aerosol particles in their path. However, the 2012 cruise showed much higher modulation in aerosol frequency than its 2011 counterpart. Whereas in 2011 large synoptic-scale aerosol events transported high concentrations of smoke into the Philippines over days, in 2012 measured aerosol events exhibited a much shorter-term variation, sometimes only 3–12 h. Strong monsoonal flow reversals were also experienced in 2012. Nucleation events in cleaner and polluted conditions, as well as in urban plumes, were observed. Perhaps most interestingly, several cases of squall lines preceding major aerosol events were observed, as opposed to 2011 observations where these lines largely scavenged aerosol particles from the marine boundary layer. Combined, these observations indicate pockets of high and low particle counts that are not uncommon in the region. These perturbations are difficult to observe by satellite and very difficult to model. Indeed, the Navy Aerosol Analysis and Prediction System (NAAPS) simulations captured longer period aerosol events quite well but largely failed to capture the timing of high-frequency phenomena. Ultimately, the research findings of these cruises demonstrate the real world challenges of satellite-based missions, significant aerosol life cycle questions such as those the future Aerosol/Clouds/Ecosystems (ACE) will investigate, and the importance of small-scale phenomena such as sea breezes, squall lines, and nucleation events embedded within SWM patterns in dominating aerosol life cycle and potential relationships to clouds

Aerosol Meteorology of the Maritime Continent for the 2012 7SEAS Southwest Monsoon Intensive Study - Part 2: Philippine Receptor Observations of Fine-Scale Aerosol Behavior

The largest 7 Southeast Asian Studies (7SEAS) operations period within the Maritime Continent (MC) occurred in the August–September 2012 biomass burning season. Data included were observations aboard the M/Y Vasco, dispatched to the Palawan Archipelago and Sulu Sea of the Philippines for September 2012. At these locations, the Vasco observed MC smoke and pollution entering the southwest monsoon (SWM) monsoonal trough. Here we describe the research cruise findings and the finer-scale aerosol meteorology of this convectively active region. This 2012 cruise complemented a 2-week cruise in 2011 and was generally consistent with previous findings in terms of how smoke emission and transport related to monsoonal flows, tropical cyclones (TC), and the covariance between smoke transport events and the atmosphere’s thermodynamic structure. Biomass burning plumes were usually mixed with significant amounts of anthropogenic pollution. Also key to aerosol behavior were squall lines and cold pools propagating across the South China Sea (SCS) and scavenging aerosol particles in their path. However, the 2012 cruise showed much higher modulation in aerosol frequency than its 2011 counterpart. Whereas in 2011 large synoptic-scale aerosol events transported high concentrations of smoke into the Philippines over days, in 2012 measured aerosol events exhibited a much shorter-term variation, sometimes only 3–12 h. Strong monsoonal flow reversals were also experienced in 2012. Nucleation events in cleaner and polluted conditions, as well as in urban plumes, were observed. Perhaps most interestingly, several cases of squall lines preceding major aerosol events were observed, as opposed to 2011 observations where these lines largely scavenged aerosol particles from the marine boundary layer. Combined, these observations indicate pockets of high and low particle counts that are not uncommon in the region. These perturbations are difficult to observe by satellite and very difficult to model. Indeed, the Navy Aerosol Analysis and Prediction System (NAAPS) simulations captured longer period aerosol events quite well but largely failed to capture the timing of high-frequency phenomena. Ultimately, the research findings of these cruises demonstrate the real world challenges of satellite-based missions, significant aerosol life cycle questions such as those the future Aerosol/Clouds/Ecosystems (ACE) will investigate, and the importance of small-scale phenomena such as sea breezes, squall lines, and nucleation events embedded within SWM patterns in dominating aerosol life cycle and potential relationships to clouds

Soap.

“SOAP” is one of the thesis film projects, produced by Class of 2012, Digital Filmmaking from School of Art, Design and Media (Nanyang Techonological University). It is a whimsical mixed-medium fantasy short film.Bachelor of Fine Art

Atomically Precise Alkynyl-Protected Metal Nanoclusters as a Model Catalyst: Observation of Promoting Effect of Surface Ligands on Catalysis by Metal Nanoparticles

Metal nanoclusters whose surface ligands are removable while keeping their metal framework structures intact are an ideal system for investigating the influence of surface ligands on catalysis of metal nanoparticles. We report in this work an intermetallic nanocluster containing 62 metal atoms, Au₃₄Ag₂₈(PhCC)₃₄, and its use as a model catalyst to explore the importance of surface ligands in promoting catalysis. As revealed by single-crystal diffraction, the 62 metal atoms in the cluster are arranged as a four-concentric-shell Ag@Au₁₇@Ag₂₇@Au₁₇ structure. All phenylalkynyl (PA) ligands are linearly coordinated to the surface Au atoms with staple “PhCC–Au–CCPh” motif. Compared with reported thiolated metal nanoclusters, the surface PA ligands on Au₃₄Ag₂₈(PhCC)₃₄ are readily removed at relatively low temperatures, while the metal core remains intact. The clusters before and after removal of surface ligands are used as catalysts for the hydrolytic oxidation of organosilanes to silanols. It is, for the first time, demonstrated that the organic-capped metal nanoclusters work as active catalysts much better than those with surface ligands partially or completely removed

Analysis of source regions for smoke events in Singapore for the 2009 El Nino burning season

10.1016/j.atmosenv.2013.04.047Atmospheric Environment78219-230AENV