نتایج جستجو برای: aliphatic carboxylic acids

تعداد نتایج: 276692  

2015

25 Published By: Blue Eyes Intelligence Engineering & Sciences Publication Pvt. Ltd. Abstract— Classification is the process of arranging a number of items into groups in such a manner that the members of the group have one or more characteristics in common. In this research paper, we present a comparative study of five different classification algorithms using WEKA, a data mining tool. This ar...

2016
Byoung Seung Jeon Okkyoung Choi Youngsoon Um Byoung-In Sang

BACKGROUND C5-C8 medium-chain carboxylic acids are valuable chemicals as the precursors of various chemicals and transport fuels. However, only a few strict anaerobes have been discovered to produce them and their production is limited to low concentrations because of product toxicity. Therefore, a bacterial strain capable of producing high-titer C5-C8 carboxylic acids was strategically isolate...

2011
Joseph M. DiTomaso

Since the synthesis of 2,4-D, a number of other synthetic auxins have become commercially available. Although these products are referred to as growth regulators or phytohormones (previously known as plant hormones), they really represent only one group of growth regulators, the auxins. Auxins can be divided into six major groups; indole acids, naphthalene acids, phenoxy carboxylic acids, benzo...

2005
Ulrich KRAGH-HANSEN

octanoate or decanoate per mol of albumin caused a decrease in dye binding (dye/protein molar ratio 1 : 1), which, in contrast with additional fatty acid, was very pronounced: 1-8mol of palmitate or stearate resulted in a small, and apparently linear, displacement of Phenol Red. The displacement effect of 1-5 mol of oleate, linoleate or linolenate per mol of albumin was comparable with that of ...

2018
Guilherme Almeida Luca Goldoni Quinten Akkerman Zhiya Dang Ali Hossain Khan Sergio Marras Iwan Moreels Liberato Manna

A binary ligand system composed of aliphatic carboxylic acids and primary amines of various chain lengths is commonly employed in diverse synthesis methods for CsPbBr3 nanocrystals (NCs). In this work, we have carried out a systematic study examining how the concentration of ligands (oleylamine and oleic acid) and the resulting acidity (or basicity) affects the hot-injection synthesis of CsPbBr...

Journal: :Journal of Biological Chemistry 1946

2013
Laura R. Jarboe Liam A. Royce Ping Liu

Carboxylic acids are an attractive biorenewable chemical in terms of their flexibility and usage as precursors for a variety of industrial chemicals. It has been demonstrated that such carboxylic acids can be fermentatively produced using engineered microbes, such as Escherichia coli and Saccharomyces cerevisiae. However, like many other attractive biorenewable fuels and chemicals, carboxylic a...

2007
Tao Ren I. A. Aksay M. Yasrebi

A total of 20 biogenic carboxylic acids, which contain one to three negatively charged -COOgroup(s), were investigated as dispersion additives in the processing of ceramic particles. Only carboxylic acids containing one or more hydroxyl groups were able to disperse ct-A120 3 particles in aqueous suspensions. Detailed studies of two carboxylic acids, citric acid and tricarballylic acid were unde...

Journal: :Journal of Molecular Liquids 2023

Switchable solvents are changing properties when exposed to an external stimulus. As example, for thermomorphic multiphasic system (TMS), temperature changes can induce phase separations. Aqueous systems presented here formulated with a carboxylic acid (weak acid) and amphiphilic tertiary amine base). They show thermo-switchable hydrophobicity after separation, the weak base mainly found in org...

Journal: :Energy & Fuels 2021

Chemical inhibition of asphaltene deposition is considered a cost-effective way to prevent the harsh consequences instability in produced crude. Thus, careful screening inhibitors crucial for an efficient prevention. However, characteristics asphaltenes such as their acid–base properties will influence selection inhibitor and mechanism. Therefore, improved knowledge on acidic basic fractions im...

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