Dopant for sodium niobate capacitor dielectric

Sodium niobate dielectric doped with barium titanate has potential application in integrated circuits with high packing densities and voltage levels below 5 to 8 volts

AstroGrid-D: Enhancing Astronomic Science with Grid Technology

We present AstroGrid-D, a project bringing together astronomers and experts in Grid technology to enhance astronomic science in many aspects. First, by sharing currently dispersed resources, scientists can calculate their models in more detail. Second, by developing new mechanisms to efficiently access and process existing datasets, scientific problems can be investigated that were until now impossible to solve. Third, by adopting Grid technology large instruments such as robotic telescopes and complex scientific workflows from data aquisition to analysis can be managed in an integrated manner. In this paper, we present prominent astronomic use cases, discuss requirements on a Grid middleware and present our approach to extend/augment existing middleware to facilitate the improvements mentioned above

Graph Based Disambiguation of Named Entities using Linked Data

Identifying entities such as people, organizations, songs, or places in natural language texts is needful for semantic search, machine translation, and information extraction. A key challenge is the ambiguity of entity names, requiring robust methods to disambiguate names to the entities registered in a knowledge base. Several approaches aim to tackle this problem, they still achieve poor accuracy. We address this drawback by presenting a novel knowledge-base-agnostic approach for named entity disambiguation. Our approach includes the HITS algorithm combined with label expansion strategies and string similarity measure like the n-gram similarity. Based on this combination, we can efficiently detect the correct URIs for a given set of named entities within an input text

Geo-Skip List Data Structure ? Implementation and Solving Spatial Queries

A major portion of the queries fired on the internet have spatial keywords in them, the storage and retrieval of spatial data has become an important task in today?s era. Given a geographic query that is composed of query keywords and a location, a geographic search engine retrieves documents that are the most textually and spatially relevant to the query keywords and the location, respectively, and ranks the retrieved documents according to their joint textual and spatial relevance to the query. The lack of an efficient index that can simultaneously handle both the textual and spatial aspects of the documents makes existing geographic search engines inefficient in answering geographic queries. There are data structures which facilitate storage and retrieval of geographical data like R-trees, R* trees, KD trees etc. We propose Geo-Skip list data structure which is also one such data structure which is inspired from the skip list data structure. It is simple, dynamic, partly deterministic and partly randomized data structure. This structure brings out the hierarchy of administrative divisions of a region very well. Also it shows an improvement in the search efficiency as compared with R-trees. In this paper, we propose algorithms for the implementation of basic spatial queries with the help of Geo-Skip List data structure ? namely, point query, range query, finding the nearest neighbour query and kth nearest neighbour query

Measurements of the light-absorbing material inside cloud droplets and its effect on cloud albedo

Most of the measurements of light-absorbing aerosol particles made previously have been in non-cloudy air and therefore provide no insight into aerosol effects on cloud properties. Here, researchers describe an experiment designed to measure light absorption exclusively due to substances inside cloud droplets, compare the results to related light absorption measurements, and evaluate possible effects on the albedo of clouds. The results of this study validate those of Twomey and Cocks and show that the measured levels of light-absorbing material are negligible for the radiative properties of realistic clouds. For the measured clouds, which appear to have been moderately polluted, the amount of elemental carbon (EC) present was insufficient to affect albedo. Much higher contaminant levels or much larger droplets than those measured would be necessary to significantly alter the radiative properties. The effect of the concentrations of EC actually measured on the albedo of snow, however, would be much more pronounced since, in contrast to clouds, snowpacks are usually optically semi-infinite and have large particle sizes

Intelligent Geographical Information Retrieval using Ontology

With Web 3.0 gaining popularity, efficiently retrieving geographical information from ever growing geospatial data is an important task. We address two issues in this work.Firstly, consider the query “Find all restaurants towards the east of Singhania school within a distance of 50km”. In current systems to get the required result, first all the objects of type restaurant are extracted, then those within a required distance range are filtered and finally the approximate direction is determined by comparing co-ordinates. This processing is done at run-time i.e. dynamically when the query is executed. In this paper, we suggest a technique to avoid this computational overhead by constructing triples after pre-processing data from the existing ontologies to make implicit information explicitly available.Secondly, to address queries like “Find all schools in Mumbai”, the current systems manually construct a polygon which encloses Mumbai and then the required schools are filtered out. The task of determining a polygon which encircles the required locality is laborious if done manually and inaccurate with APIs like Google Maps. We propose an accurate technique which automatically forms the enclosing polygon for a region under consideration

TB38: Utilization of Amino Acids from Protein by the Growing Rat: Efficiency of Carcass Protein Formation

Ten experiment stations in the Northeast have cooperated in investigating three sources of amino acids (pure amino acids, milk protein and wheat gluten) at two levels (1.2% and 1.6% dietary nitrogen) with different subjects (humans, rats, pigs and protozoa) under different conditions (growth, maintenance and stress) in order to study availability of amino acids in protein. The publication describes the effect of the three nitrogen sources containing equal amounts of essential amino acids and nitrogen on the growth of rats over two and four weeks.https://digitalcommons.library.umaine.edu/aes_techbulletin/1155/thumbnail.jp

A comparison of two microcomputer database management system products

Call number: LD2668 .R4 CMSC 1989 R33Master of ScienceComputing and Information Science

The Israeli-Jordanian tacit alliance from 1967-1984

Thesis (B.S.) in Political Science--University of Illinois at Urbana-Champaign, 1990.Includes bibliographical references (leaves 79-80)Microfiche of typescript. [Urbana, Ill.]: Photographic Services, University of Illinois, U of I Library, [1990]. 2 microfiches (84 frames): negative.s 1990 ilu n