نتایج جستجو برای: vv solvent comparing to acetone procedure moreover

تعداد نتایج: 10722938  

Journal: :International journal of innovative engineering applications 2023

The objective of this work was comparing the optical performance hydrothermally and solvothermal synthesized unique florescent carbon quantum dots (FCQDs) from organic material use it as a fluorescent ink for one significant information encryption applications. goji berry sucrose were used source experiment. FCQDs obtained by simple hydrothermal methods using water, isopropanol acetone solvent....

Journal: :Food chemistry 2013
Jia Li Qiong Su Ke-Yao Li Chu-Feng Sun Wen-Bo Zhang

A novel procedure based on multi-walled carbon nanotubes (MWCNTs)/silica reinforced hollow fibre solid-phase microextraction combined with gas chromatography-mass spectrometry has been developed to analyse trace phthalate acid esters in beverage and alcoholic samples. Because of their excellent adsorption capability towards hydrophobic compounds, functionalized MWCNTs, acting as solid-phase sor...

Journal: :Journal of environmental chemical engineering 2022

The biotechnological production of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) derived from organic waste streams by mixed microbial communities is well established at the pilot-level. However, there limited research on recovery biopolymer biomass, while its impact product quality and costs major. When applying solvent extraction, choice has a profound influence many aspects process des...

Journal: :Pharmaceutical biology 2011
I O Ademola J N Eloff

CONTEXT The failure of modern anthelmintics to control nematode parasites of sheep and goats is a reality on many farms in the tropical/subtropical regions of the world. This necessitates chemotherapeutic control alternatives and plant secondary metabolite with activity is one of those potential solutions. OBJECTIVE This study was design to evaluate the efficacy of solvent: solvent fractions ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم انسانی 1387

چکیده: بررسی ادبیات مربوطه در کشور در زمینه یادگیری زبان انگلیسی نشان می‎دهد که علی‎رغم اهمیت املا در فرآیند یادگیری به طور عام و یادگیری زبان انگلیسی به طور خاص، این مولفه از جایگاهی متناسب با اهمیت آن برخوردار نیست و عمدتاً نادیده گرفته شده است. تحقیقات گسترده‎ای در خارج از کشور در مورد ماهیت این مولفه صورت گرفته است، در حالی که به جرأت می‎توان گفت در داخل کشور گامی در مورد درک ماهیت آن و فرآی...

2017
Olga Koval Galina Kochneva Anastasiya Tkachenko Olga Troitskaya Galina Sivolobova Antonina Grazhdantseva Anna Nushtaeva Elena Kuligina Vladimir Richter

Genetic modifications of the oncolytic vaccinia virus (VV) improve selective tumor cell infection and death, as well as activation of antitumor immunity. We have engineered a double recombinant VV, coding human GM-CSF, and apoptosis-inducing protein apoptin (VV-GMCSF-Apo) for comparing with the earlier constructed double recombinant VV-GMCSF-Lact, coding another apoptosis-inducing protein, lact...

Journal: :Maejo International Journal of Energy and Environmental Communication (MIJEEC) 2021

As fossil fuels are the principal source for automobile and energy sectors, global warming a rapid decrease in their availability seen. Alternative that sustainable, renewable, eco-friendly widely investigated order to maintain an aesthetic environment combat fuel depletion. Biofuels have ability both reduce pollution provide energy. This study focuses on extraction of oil from freshwater micro...

Journal: :Biotechnology and bioengineering 2009
Ryan Sillers Mohab Ali Al-Hinai Eleftherios T Papoutsakis

Metabolic engineering (ME) of Clostridium acetobutylicum has led to increased solvent (butanol, acetone, and ethanol) production and solvent tolerance, thus demonstrating that further efforts have the potential to create strains of industrial importance. With recently developed ME tools, it is now possible to combine genetic modifications and thus implement more advanced ME strategies. We have ...

2014
Li Fang Feifei Li Xuemei Luo

The complete mol-ecule of the title compound, C24H21N3O6, is generated by the application of threefold rotation symmetry about an axis perpendicular to the central ring. The mol-ecule exhibits a propeller-like shape. The dihedral angle between each benzene ring and the heterocyclic ring is 74.0 (1)°. The mol-ecules pack with no specific inter-molecular inter-actions between them. The SQUEEZE pr...

Journal: :Remote Sensing 2018
Magdalena Mleczko Marek Mróz

This research is related to the eco-hydrological problems of the herbaceous wetland drying and biodiversity loss in the floodplain lakes of the Middle Basin of the Biebrza River (Poland). An experiment was set up, with its main goals as follows: (i) mapping the vegetation types and the temporarily or permanently flooded areas, and (ii) comparing the usefulness of the C-band Sentinel-1A (S1A) an...

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