Experience of Developing a Meta-Semantic Search Engine

Thinking of todays web search scenario which is mainly keyword based, leads to the need of effective and meaningful search provided by Semantic Web. Existing search engines are vulnerable to provide relevant answers to users query due to their dependency on simple data available in web pages. On other hand, semantic search engines provide efficient and relevant results as the semantic web manages information with well defined meaning using ontology. A Meta-Search engine is a search tool that forwards users query to several existing search engines and provides combined results by using their own page ranking algorithm. SemanTelli is a meta semantic search engine that fetches results from different semantic search engines such as Hakia, DuckDuckGo, SenseBot through intelligent agents. This paper proposes enhancement of SemanTelli with improved snippet analysis based page ranking algorithm and support for image and news search.Comment: 4 pages, 9 figures, 1 table. CUBE 2013 International Conferenc

Growth performance, in vitro antioxidant properties and chemical composition of the halophyte Limonium algarvense Erben are strongly influenced by the irrigation salinity

Limonium algarvense Erben (sea lavender) is a halophyte species with potential to provide natural ingredients with in vitro antioxidant, anti-inflammatory, neuroprotective and antidiabetic properties. This study reports for the first time the 1) cultivation of sea lavender in greenhouse conditions under irrigation with freshwater (approx. 0 mM NaCl) and saline aquaculture wastewater (300 and 600 mM NaCl), and 2) the influence of the irrigation salinity on the plant performance (e.g growth, number of produced leaves and flowers), in vitro antioxidant properties [radical scavenging activity (DPPH and ABTS), ferric reducing antioxidant power (FRAP), metal chelating properties on copper (CCA) and iron (ICA)], toxicity (in vitro on three mammalian cell lines) and chemical composition (determined by LC-ESI-HRMS/MS). The freshwater-irrigated plants had better growth performance than those irrigated with saltwater. Extracts from wild plants, had the highest antioxidant activity, but those from cultivated ones kept high in vitro antioxidant properties and interesting chemical profile. The flowers' extracts of plants irrigated with 300 mM NaCl had the highest antioxidant activities against DPPH, whereas those from freshwater-irrigated plants were more active on ABTS, CCA and FRAP. Most of the extracts showed nil toxicity. The flowers' extracts displayed the highest diversity of compounds, mainly quercetin, apigenin, luteolin, naringenin and their glycoside derivatives. Moreover, their abundance varied with the irrigation salinity. These data indicate that sea lavender plants can be successfully cultivated in greenhouse conditions under fresh- and saltwater irrigation, maintaining interesting biological and chemical properties.Funding Agency Portuguese Foundation for Science and Technology Portuguese National Budget CCMAR/Multi/04326/2019 GreenVet project ALG-01-0145-FEDER-028876 XtrerneAquaCrops FA-05-2017-028 Lisboa-01-0145-FEDER-022125-RNEM-IST ID/QUI/00100/201 Portuguese Foundation for Science and Technology SFRH/BD/116604/2016 CEECIND/00425/2017info:eu-repo/semantics/publishedVersio

A FP-LAPW Study on Ground State Electronic Nature of RESn3 (RE= La, Ce, Pr and Nd) Intermetallic Compound

First principles study of structural and electronic properties of non- magnetic LaSn3 and CeSn3 as well as ferromagnetic PrSn3 and NdSn3 rare-earth intermetallic compounds, which crystallize in AuCu3-type structure, is performed using density functional theory based on full potential linearized augmented plane wave (FP-LAPW) method. The ground state calculations are carried out within PBE-GGA and LSDA approximations for the exchange correlation potential. Lack of availability of data regarding the above properties of RESn3 motivated us to perform systematic study of these compounds. The ground state properties such as lattice parameter are found to be in good agreement with the available experimental data. The electronic band structure calculations for the studied RESn3 compounds show metallic character in both majority and minority spin channels. Keywords: Rare-earth; Density functional theory; Metallic

Appraisal of Optimum Economic Life for Farm Tractor: A Case Study

Agricultural equipment gets deteriorated mechanically and their functionality decreased with time and usage. In order to manage such equipment, it requires higher operating and maintenance cost, as a result of this, there is a need to replace them. Decision making about the replacement of used farm equipment with a new similar one is one of the important aspects of farm machinery management. Based on that criterion, the objective of the investigation was decided to estimate the economic operational life of tractors in the central region of Madhya Pradesh, India and to evaluate the effect of different parameters on economic life, which would add value to the profitable management decision. The tractor data collected were from government agricultural centres in the different regions of M.P. and categorized them into different groups based on their horsepower rating. Considering the preventive replacement policy the total annual average costs of tractors were estimated taking account into the repair cost and depreciation cost. The time period (in year), when the total annual average cost touched its minimum value, was decided as the economic life of a tractor. There is a negative correlation (r= -0.835) found between size (HP) of tractors and their economic life. And an empirical relation based on multiple regression analysis has been generated to predict the economic operational life of a tractor using per unit repair cost and annual usage (hours) as variables

Investigation of Natural Air Conditioning through Tropical Avenue Trees

oai:ojs.pkp.sfu.ca:article/1The present study gives an idea on effect of trees on temperature, relative humidity and light intensity. There was an increase in temperature with corresponding increase in distance from the base of trees. There was 1-2º C difference found from 0-6 meter distance away from the base under different tree species. Whereas the relative humidity decreases with corresponding increase in distance .The difference in temperature away from the base of tree was more pronounced in F.benghalensis and F.religosa than E.camaldulensis. This was 8-9º C lower as compared to vegetation free ground. The study emphasizes the role of tree in controlling the micro-climate of holkar science college campus Indore. Maximum shade was observed under F.benghalensisand minimum at E. camaldulensis. The average light cut off was three times more by F.benghalensis than E. camaldulensis out of five test species . The Ficus species were found more effective than other . The study suggest plantation of Ficus species in urban areas to feel comfort in summer months

COMPARATIVE ELECTROPHORETIC STUDIES OF LENS PROTEIN ISOLATED FROM PUNTIUS TICTO (HAMILTON 1822) AND RASBORA DANICONUS (HAMILTON 1822)

A comparative electrophoretic study of the eyelens protein of two freshwater fishes viz. Puntius ticto and Rasbora daniconus was carried out. Electrophoretic analyses revealed substantial differences in the polypeptide distribu- tion in both the fishes. SDS-PAGE of water soluble fractions of lens protein showed several bands ranging from 70-13.5 kDa and 74-13.5 kDa in P. ticto and R. daniconus respectively. The insoluble protein fraction was further resolved into the urea soluble lens protein (USLP) and plasma membrane protein fraction(PMP), SDS-PAGE analysis of the USLP fraction showed the presence of 6 bands ranging from 120-13.5 kDa in P. ticto and 114- 13,5 kDa in R. daniconus The PMP fraction of P. ticto resolved into 6 subunits ranging from 74-13.5 kDa. In contrast only two bands corresponding to 29 and 13.5 KDa was observed for the PMP fraction of R. daniconus . The present study demonstrates a complete variation in the protein pattern of the soluble and insoluble protein fraction in these two fishes. The variation in eye lens protein which are considered to be a conserved protein suggest that the R. daniconus had undergone gene duplication in the course of evolution and the two fishes may have evolved differently

COMPARISON OF FUNCTIONAL PROPERTIES OF HEMOLYMPH PROTEIN FROM FRESHWATER CRAB, BARYTELPHUSA CUNICULARIS WITH CASEIN, EGG ALBUMIN AND BOVINE SERUM ALBUMIN

The physico chemical and functional properties  of hemolymph  protein  ( HP)  from freshwater crab, Barytelphusa cunicularis  was compared  with commercially  available  proteins viz. Casein, egg albumin and Bovine serum albumin ( BSA) for possible use in  food technology. The percentage solubility of proteins, observed were casein>HP>egg albumin>BSA at different pH. The emulsifying properties of casein, egg albumin, BSA and HP at pH 7 and 9,did not show any statistically significant  difference. But, when compared with pH 7 and 9 between the groups, a statically significant difference was observed.  The foam stability and capacity studies of protein were found in the order of casein> egg albumin=BSA>HP and casein<egg albumin<HP<BSA respectively. The foam stability and time showed a statistically significant relationship. The HP showed a less water binding capacity (WBC) and oil binding capacity (OBC) when compared to casein, BSA and egg albumin. Thus, the present study suggest suggests that HP is a good candidate for use in food processing industries and this protein should not be  simply  ignored