نتایج جستجو برای: rich extraction

تعداد نتایج: 320168  

2002
Jiying Wang Frederick H. Lochovsky

The paper is about a novel algorithm, DSE (Datarich Subtree Extraction) to recognize and extract the datarich section of an HTML page. The DSE algorithm is used for two typical web information retrieval problems: topic distillation and web information extraction. The DSE algorithm has been developed by Jiying Wang from the University of Science & Technology in Hong Kong. Introduction Many Inter...

2012
Vitor Farinha Luz

We characterize Revenue Maximizing Mechanisms in auction settings with `rich' type spaces where bidders obtain information from sources other than their own valuation. The focus of the paper is on the concept of weak Bayes-Nash implementation. By considering a relaxed problem, we provide an upper bound on Revenue Extraction that explicitly builds upon the richness of the information structure. ...

Journal: :iranian journal of pharmaceutical research 0
ali reza zarei faculty of chemistry and chemical engineering, malek ashtar university of technology, tehran, 15875-1774, iran. hayedeh bagheri sadeghi department of chemistry, islamic azad university, tehran central branch, tehran, iran. samira abedin department of chemistry, islamic azad university, tehran central branch, tehran, iran.

in this work, we developed a simple and selective method for separation and spectrophotometric determination of trace amounts of cetylpyridinium chloride (cpc) in pharmaceutical products using cloud point extraction (cpe) technique. the method is based on cloud point extraction of the cpc in alkali conditions using of nonionic surfactant triton x-114. under selected conditions, the calibration ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اراک - دانشکده علوم 1392

the history of plant’s used for mankind is as old as the start of humankind. initially, people used plants for their nutritional proposes but after the discovery of medicinal properties, this natural ?ora became a useful source of disease cure and health improvement across various human communities. berberis vulgaris is one of the medicinal plants used in iranian traditional medicine. berberis ...

Journal: :journal of chemical and petroleum engineering 2012
nooshin rahgozar saeid alamdar milani mohammad ali salehi

in this article cloud-point extraction (cpe) was used with chelating agent to extract uranium from aqueous solutions. the methodology used is based on the formation of metal complexes soluble in a micellar phase of surfactant. the metal ions complexes are then extracted into the surfactant-rich phase at a temperature above the cloud-point temperature. the effect of type of surfactants and ligan...

Journal: :Journal of Bioinformatics and Computational Biology 2010

The present article includes the Ultrasound-Assisted Extraction (UAE) of Citrus unsiu Marc. leaves rich in polyphenols. The best possible combinations of solvent, pH of the media, solvent/solid ratio, extraction time, extraction temperature and particle size were obtained for the maximum extraction of Total Phenolic Compounds (TPC) and Total Flavonoid Compounds (TFC) by us...

Ali Reza Zarei, Hayedeh Bagheri Sadeghi Samira Abedin

In this work, we developed a simple and selective method for separation and spectrophotometric determination of trace amounts of cetylpyridinium chloride (CPC) in pharmaceutical products using cloud point extraction (CPE) technique. The method is based on cloud point extraction of the CPC in alkali conditions using of nonionic surfactant Triton X-114. Under selected conditions, the calibration ...

Ali Reza Zarei, Hayedeh Bagheri Sadeghi Samira Abedin

In this work, we developed a simple and selective method for separation and spectrophotometric determination of trace amounts of cetylpyridinium chloride (CPC) in pharmaceutical products using cloud point extraction (CPE) technique. The method is based on cloud point extraction of the CPC in alkali conditions using of nonionic surfactant Triton X-114. Under selected conditions, the calibration ...

Mohammad Ali Salehi, Nooshin Rahgozar, Saeid Alamdar Milani

In this article cloud-point extraction (CPE) was used with chelating agent to extract uranium from aqueous solutions. The methodology used is based on the formation of metal complexes soluble in a micellar phase of surfactant. The metal ions complexes are then extracted into the surfactant-rich phase at a temperature above the cloud-point temperature. The effect of type of surfactants and ligan...

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