303 research outputs found

    Ambiguous (((Par(t)(it))((ion))(s))(in)) Thai Text

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    24th International Conference on Information Modelling and Knowledge Bases

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    In the last three decades information modelling and knowledge bases have become essentially important subjects not only in academic communities related to information systems and computer science but also in the business area where information technology is applied. The series of European – Japanese Conference on Information Modelling and Knowledge Bases (EJC) originally started as a co-operation initiative between Japan and Finland in 1982. The practical operations were then organised by professor Ohsuga in Japan and professors Hannu Kangassalo and Hannu Jaakkola in Finland (Nordic countries). Geographical scope has expanded to cover Europe and also other countries. Workshop characteristic - discussion, enough time for presentations and limited number of participants (50) / papers (30) - is typical for the conference. Suggested topics include, but are not limited to: 1. Conceptual modelling: Modelling and specification languages; Domain-specific conceptual modelling; Concepts, concept theories and ontologies; Conceptual modelling of large and heterogeneous systems; Conceptual modelling of spatial, temporal and biological data; Methods for developing, validating and communicating conceptual models. 2. Knowledge and information modelling and discovery: Knowledge discovery, knowledge representation and knowledge management; Advanced data mining and analysis methods; Conceptions of knowledge and information; Modelling information requirements; Intelligent information systems; Information recognition and information modelling. 3. Linguistic modelling: Models of HCI; Information delivery to users; Intelligent informal querying; Linguistic foundation of information and knowledge; Fuzzy linguistic models; Philosophical and linguistic foundations of conceptual models. 4. Cross-cultural communication and social computing: Cross-cultural support systems; Integration, evolution and migration of systems; Collaborative societies; Multicultural web-based software systems; Intercultural collaboration and support systems; Social computing, behavioral modeling and prediction. 5. Environmental modelling and engineering: Environmental information systems (architecture); Spatial, temporal and observational information systems; Large-scale environmental systems; Collaborative knowledge base systems; Agent concepts and conceptualisation; Hazard prediction, prevention and steering systems. 6. Multimedia data modelling and systems: Modelling multimedia information and knowledge; Contentbased multimedia data management; Content-based multimedia retrieval; Privacy and context enhancing technologies; Semantics and pragmatics of multimedia data; Metadata for multimedia information systems. Overall we received 56 submissions. After careful evaluation, 16 papers have been selected as long paper, 17 papers as short papers, 5 papers as position papers, and 3 papers for presentation of perspective challenges. We thank all colleagues for their support of this issue of the EJC conference, especially the program committee, the organising committee, and the programme coordination team. The long and the short papers presented in the conference are revised after the conference and published in the Series of “Frontiers in Artificial Intelligence” by IOS Press (Amsterdam). The books “Information Modelling and Knowledge Bases” are edited by the Editing Committee of the conference. We believe that the conference will be productive and fruitful in the advance of research and application of information modelling and knowledge bases. Bernhard Thalheim Hannu Jaakkola Yasushi Kiyok

    Experimental Investigation and High Resolution Simulation of In-Situ Combustion Processes

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    Global drivers of variation in seaweed macronutrient composition and nutritional vale of selected seaweed species in northeastern New Zealand : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Conservation Biology at Massey University, Albany, New Zealand

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    Seaweeds are taxonomically diverse and have many valuable commercial applications. Globally, the seaweed aquaculture sector is growing exponentially with promising ecological and environmental implications. While the nutritional characteristics of many commercial species are well-recognised, a vast proportion of seaweed taxa remains unexplored. Using a multivariate meta-analytic approach, I examine the reported nutritional composition of 182 seaweed species across 81 published studies using conventional proximate composition analyses to determine the relative amounts of ash, soluble carbohydrate, insoluble fibre, lipid, and protein. I found that although red seaweeds had higher nutritional value compared to brown and green seaweeds, minor differences separated the phyla. Furthermore, I found that procedural effects contributed strongly to variation in the reported values of specific macronutrients. Specifically, I discovered large among-study variation for reported insoluble fibre and soluble carbohydrate content and notable measurement error variation for reported lipid content. Additionally, I found nutritional trade-offs among seaweed species, where some species were higher (lower) in soluble carbohydrate and ash and lower (higher) in insoluble fibre and lipids. My meta-analysis revealed the scope of the impacts of among-study differences and insight into the expected relationships between macronutrients at the species level once procedural and phylum-level effects were accounted for. Unless standardized protocols are adopted, generalisations about the relative nutritional value of different seaweeds or seaweed taxa will be limited. Within northeastern New Zealand, I examined the nutritional composition of eleven coastal seaweeds using proximate composition analyses. On average, Asparagopsis armata and Pterocladiella capillacea were highest in protein, Corallina officinalis was highest in ash, and Xiphophora chondrophylla was highest in insoluble fibre. Additionally, Cystophora retroflexa was highest in lipids, Carpophyllum maschalocarpum was highest in soluble carbohydrates, and lastly, Codium fragile and Ulva lactuca were highest in moisture. Based on their higher protein contents, A. armata, and P. capillacea may be potentially important for New Zealand’s growing commercial seaweed industry. Overall, my thesis examining both large-scale seaweed nutritional composition and underlying variation as well as nutritional properties of northeastern New Zealand seaweeds provides insight into future directions for nutritional research on seaweeds and the implications for the development of seaweed aquaculture in New Zealand

    Sedimentological signatures of lacustrine tsunamis

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    Lake tsunamis are a natural hazard with high magnitudes and low recurrence rates. Because of their infrequent occurrence in space and time, little is known about the associated hazard and the risk to the vulnerable coastal areas that are often heavily populated. However, historical reports and recent scientific achievements show that certain Swiss lakes may have been repeatedly affected by tsunamis during the last 15’000 years. This makes Switzerland an ideal case-study area to conduct fundamental research in the field of tsunamis and to gain new knowledge applicable to other lacustrine areas, as well as to the marine environment. Lacustrine tsunamis can be generated by subaqueous and subaerial mass movements, volcanic eruptions, fault displacements within large lakes, and air-pressure disturbances. Mass movements, triggered by strong earthquakes, are considered one of the main causes. However, spontaneous delta collapses and subaerial impact, often related to artificial rock-mining activities, also have induced tsunami events on Swiss lake basins. The geological record of mass-movement deposits in the seismically imaged stratigraphy of deep lake basins provides evidence for the occurrence of prehistoric lake tsunamis. However, because the dimensions (e.g., spatial distribution, volume, etc.) and dynamics (e.g., single-stage or multi-stage failures, initial acceleration, velocity, cohesion etc.) of mass movements strongly influence tsunami generation, which is difficult to estimate, conclusive evidence for prehistoric lake tsunamis is lacking. Therefore, the geological record in the on- and offshore coastal environment may provide further evidence on past lacustrine tsunami events. These sedimentological signatures are examined in this thesis. Recent marine (2018 Sulawesi earthquake and tsunami, Indonesia) and lacustrine (2007 landslide-generated tsunami in Chehalis Lake, Canada) tsunami events indicate that large amounts of sediment are mobilized during tsunami inundation and transported both landward and seaward with backwash currents. To date, a wide variety of sedimentological bed forms and characteristic depositional signatures have been described from various coastal environments. Nevertheless, hardly any tsunami deposits have been described from the on- and near-offshore of lakes, and none were investigated in and around Swiss lakes until today. Yet, historical tsunami hazard descriptions from Swiss lakes provide documentation of inundation distances and run-up, and in specific cases, a limited description of the associated deposits left behind. These descriptions were used to characterize and locate tsunami deposits from lacustrine environments that were compared with descriptions of their marine counterparts. In summary, a combination of geological field- and laboratory analysis, numerical tsunami propagation simulation, and historical documents is used to identify and characterize lacustrine tsunami deposits in several Swiss lakes. At field sites where positive evidence for tsunami deposits was observed, sedimentological characteristics are used to finally validate the robustness of numerical tsunami propagation simulations applied to mass movements observed from bathymetric and seismic reflection data in the lake. Based on numerical tsunami simulation and a suite of sediment cores from the coastal on- and offshore environment of Lake Sils, we were able to reconstruct a prehistoric delta collapse-generated tsunami. An offshore tsunami deposit of the historic 1601 Lake Lucerne event was observed from sediment core transect in a coastal depression in the Lucerne Bay. Another sediment core recovered from the coastal offshore environment contains sedimentary signatures that are likely associated with bottom currents from prehistoric tsunami events at ~2200 and ~5400 Before Present at Lake Lucerne. The observed sedimentological signatures of lake tsunamis were investigated using multi-proxy analysis including whole-core scans (density, magnetic susceptibility, and CT), as well as micro-CT scanning of sediment U-channels, radiocarbon dating, elemental analysis, and grain-size analysis. The identified sedimentological signatures consist of sharp lower and upper sedimentary contacts, successions of single and multiple normal graded sand, massive sand beds, and a characteristic fine-grained top. Based on radiocarbon dating, these signatures can be associated with large mass-movement deposits observed in sediment cores and seismic-reflection data of the deep lake basin

    Reconstructing abrupt, high-magnitude sea-level changes from near-field coastal environments

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    Abrupt, high-magnitude sea-level changes pose a major challenge to society and have, in the past, been significant drivers of coastal change. Traditionally, sea-level reconstructions from near-field regions - those close to or strongly influenced by current or former ice masses - depict long-term, millennial-scale sea-level changes associated with low-amplitude ice-sheet histories. Types of abrupt sea-level change, including meltwater pulses, tsunamis and storms, are not well studied in near-field regions, but such areas have potential to provide a suitable context for recording and identifying evidence of abrupt sea-level change. For example, unusually high sedimentation rates due to the presence of glaciers might promote the development of high-resolution records, while a dominant glacio-isostatic adjustment signal might facilitate improved registration and identification of globally significant episodes of abrupt sea-level rise. This thesis explores the efficacy of near-field regions in reconstructing abrupt sea-level change by using a combination of stratigraphic and dating methods at field sites in Scotland and Greenland. From southwest Scotland, a sub-centennially resolved, diatom-based sea-level reconstruction for the early Holocene constrains the timing and magnitude of three meltwater-induced sea-level accelerations in the c. 500 yrs prior to the 8.2 kyr BP event. Despite an inability of the 14C dating technique to confirm synchroneity of events, the three sea-level jumps overlap in age with other examples of abrupt change recorded in North Atlantic non-coastal and coastal archives, lending support to a three-event model of meltwater release from the Laurentide Ice Sheet as the driving mechanism responsible for the 8.2 kyr BP event. In Greenland, nearshore and freshwater stratigraphic records contain evidence of landslide- and iceberg-induced tsunami events in the mid and late Holocene. Field sites in Vaigat (Disko Bugt, West Greenland) preserve evidence of five tsunami events in the past 1500-2000 years, which is comparable to tsunami recurrence intervals described from sites on large subduction zone margins. A coastal lake at Innaarsuit also provides the first reported sedimentary evidence of an iceberg-generated tsunami in the mid Holocene. The thesis concludes by reflecting on the opportunities and challenges in reconstructing abrupt sea-level change from near-field settings

    The Tai languages of Assam--a grammar and texts

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    Sedimentological signatures of lacustrine tsunamis

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    Lake tsunamis are a natural hazard with high magnitudes and low recurrence rates. Because of their infrequent occurrence in space and time, little is known about the associated hazard and the risk to the vulnerable coastal areas that are often heavily populated. However, historical reports and recent scientific achievements show that certain Swiss lakes may have been repeatedly affected by tsunamis during the last 15’000 years. This makes Switzerland an ideal case-study area to conduct fundamental research in the field of tsunamis and to gain new knowledge applicable to other lacustrine areas, as well as to the marine environment. Lacustrine tsunamis can be generated by subaqueous and subaerial mass movements, volcanic eruptions, fault displacements within large lakes, and air-pressure disturbances. Mass movements, triggered by strong earthquakes, are considered one of the main causes. However, spontaneous delta collapses and subaerial impact, often related to artificial rock-mining activities, also have induced tsunami events on Swiss lake basins. The geological record of mass-movement deposits in the seismically imaged stratigraphy of deep lake basins provides evidence for the occurrence of prehistoric lake tsunamis. However, because the dimensions (e.g., spatial distribution, volume, etc.) and dynamics (e.g., single-stage or multi-stage failures, initial acceleration, velocity, cohesion etc.) of mass movements strongly influence tsunami generation, which is difficult to estimate, conclusive evidence for prehistoric lake tsunamis is lacking. Therefore, the geological record in the on- and offshore coastal environment may provide further evidence on past lacustrine tsunami events. These sedimentological signatures are examined in this thesis. Recent marine (2018 Sulawesi earthquake and tsunami, Indonesia) and lacustrine (2007 landslide-generated tsunami in Chehalis Lake, Canada) tsunami events indicate that large amounts of sediment are mobilized during tsunami inundation and transported both landward and seaward with backwash currents. To date, a wide variety of sedimentological bed forms and characteristic depositional signatures have been described from various coastal environments. Nevertheless, hardly any tsunami deposits have been described from the on- and near-offshore of lakes, and none were investigated in and around Swiss lakes until today. Yet, historical tsunami hazard descriptions from Swiss lakes provide documentation of inundation distances and run-up, and in specific cases, a limited description of the associated deposits left behind. These descriptions were used to characterize and locate tsunami deposits from lacustrine environments that were compared with descriptions of their marine counterparts. In summary, a combination of geological field- and laboratory analysis, numerical tsunami propagation simulation, and historical documents is used to identify and characterize lacustrine tsunami deposits in several Swiss lakes. At field sites where positive evidence for tsunami deposits was observed, sedimentological characteristics are used to finally validate the robustness of numerical tsunami propagation simulations applied to mass movements observed from bathymetric and seismic reflection data in the lake. Based on numerical tsunami simulation and a suite of sediment cores from the coastal on- and offshore environment of Lake Sils, we were able to reconstruct a prehistoric delta collapse-generated tsunami. An offshore tsunami deposit of the historic 1601 Lake Lucerne event was observed from sediment core transect in a coastal depression in the Lucerne Bay. Another sediment core recovered from the coastal offshore environment contains sedimentary signatures that are likely associated with bottom currents from prehistoric tsunami events at ~2200 and ~5400 Before Present at Lake Lucerne. The observed sedimentological signatures of lake tsunamis were investigated using multi-proxy analysis including whole-core scans (density, magnetic susceptibility, and CT), as well as micro-CT scanning of sediment U-channels, radiocarbon dating, elemental analysis, and grain-size analysis. The identified sedimentological signatures consist of sharp lower and upper sedimentary contacts, successions of single and multiple normal graded sand, massive sand beds, and a characteristic fine-grained top. Based on radiocarbon dating, these signatures can be associated with large mass-movement deposits observed in sediment cores and seismic-reflection data of the deep lake basin
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