نتایج جستجو برای: aggregation operation

تعداد نتایج: 275880  

2006
Qiu Ji Weiru Liu Guilin Qi David A. Bell

Ontology matching is an essential operation in many application domains, such as the Semantic Web, ontology merging or integration. So far, quite a few ontology matching approaches or matchers have been proposed. It has been observed that combining the results of multiple matchers is a promising technique to get better results than just using one matcher at a time. Many aggregation operators, s...

Platelet aggregation inhibitory effect and anticoagulant properties of fractions separated from the venoms of Cerastes persicus fieldi and Echis carinatus were investigated. The partial fractionation was performed on a Sephadex G-100 column. Two fractions separated from Cerastes persicus fieldi showed anti platelet aggregation activity on ADP (200 µM)-induced platelet aggregation (ca 80% inhibi...

2017
Bożena Szermer-Olearnik Marek Drab Mateusz Mąkosa Maria Zembala Jakub Barbasz Krystyna Dąbrowska Janusz Boratyński

BACKGROUND Bacteriophage survives in at least two extremes of ionic environments: bacterial host (high ionic-cytosol) and that of soil (low ionic-environmental water). The impact of ionic composition in the micro- and macro-environments has not so far been addressed in phage biology. RESULTS Here, we discovered a novel mechanism of aggregation/disaggregation transitions by phage virions. When...

Journal: :Computer Communications 2009
Konstantinos Kalpakis Shilang Tang

Performing tasks energy efficiently in a wireless sensor network (WSN) is a critical issue for the successful deployment and operation of such networks. Gathering data from all the sensors to a base station, especially with in–network aggregation, is an important problem that has received a lot of attention recently. The Maximum Lifetime Data Gathering with Aggregation (MLDA) problem deals with...

Journal: :the iranian journal of pharmaceutical research 0
toktam mehdizadeh kashani department of toxicology, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran. hossein vatanpour department of toxicology, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran. pharmaceutical sciences research center, shahid beheshti university of medical sciences, tehran, iran. hossein zolfagharian department of venomous animals and antivenom production, razi vaccine and serum research institute, karaj, iran. hasan hooshdar tehrani department of medicinal chemistry, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran. mohammad hossein heydari proteomics research center, paramedical school, shahid beheshti university of medical sciences, tehran, iran. farzad kobarfard department of medicinal chemistry, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran. phytochemistry research center, shahid beheshti university of medical sciences, tehran, iran.

platelet aggregation inhibitory effect and anticoagulant properties of fractions separated from the venoms of cerastes persicus fieldi and echis carinatus were investigated. the partial fractionation was performed on a sephadex g-100 column. two fractions separated from cerastes persicus fieldi showed anti platelet aggregation activity on adp (200 µm)-induced platelet aggregation (ca 80% inhibi...

Epidemiologic studies show that the cardiovascular diseases are associated with multiple factors such as raised serum total cholesterol, increased LDL, increased platelet aggregation, hypertension and smoking. In-vitro studies have confirmed the ability of some plants of Allium species to reduce these parameters. Therefore, we evaluated anti-platelet aggregation effect of some Allium species (A...

A series of novel 2-aminopyrimidine and 2-Substituted-4,6-diaminopyrimidine derivatives have been synthesized and their anti platelet aggregation activities were assessed against ADP and arachidonic acid- induced platelet aggregation in human plasma using light transmission aggregometry. None of the compounds showed satisfactory activity against the aggregation induced by ADP. However, satisfac...

Journal: :iranian journal of fuzzy systems 2013
kevin kam fung yuen

aggregation operators (aos) have been studied by many schol- ars. as many aos are proposed, there is still lacking approach to classify the categories of ao, and to select the appropriate ao within the ao candidates. in this research, each ao can be regarded as a cognitive style or individual dierence. a cognitive style and aggregation operator (csao) model is pro- posed to analyze the mapping ...

Journal: :آب و خاک 0
علیرضا عمادی معصومه خادمی

abstract regarding temporal variation of rivers discharge and demands, for suitable use of dam reservoirs stored water, application of operation rule curves is necessary. operation rules are expressed with rule curves. application of yield model is one of the methods of operation curve preparation, which correlates reservoir operation with reservoir storage volume in first period. in this study...

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