نتایج جستجو برای: extraction mechanism

تعداد نتایج: 725733  

Journal: :amirkabir international journal of electrical & electronics engineering 2014
i. kalantari b. zakeri

polarimetric synthetic aperture radar (pol.-sar) allows us to implement the recognition and classification of radar targets. this article investigates the arrangement of scatterers by sar data and proposes a new look-up table of region (ltr). this look-up table is based on the combination of (entropy h/anisotropy a) and (anisotropy a/scattering mechanism α), which has not been reported up now. ...

2009
Zurina Zainal Abidin Sepidar Sayyar Robiah Yunus

Problem statement: Jatropha curcas is a wonder plant with a variety of applications and enormous economic potentials. Oil from the seeds can be used as alternative fuel and for making biodiesel which aims to overcome energy crisis problems. In this study, extraction of Jatropha oil from seeds was optimized using organic solvent based on the amount of the extracted oil. The kinetics of extractio...

Journal: :Machines 2022

As for the fault diagnosis of rolling bearings under strong background noises, whether feature extraction is comprehensive and accurate critical, especially data-driven methods. To improve comprehensiveness accuracy extraction, a method proposed based on parameter optimization Adaptive Generalized S-Transform (AGST). The AGST used to solve problem incomplete bearing faults. Particle Swarm Brain...

Precious metals are currently associated with selenium (naumannite, Ag2Se) and tellurium (calaverite, AuTe2; sylvanite, (Au,Ag)2Te4) to form species refractory to cyanidation. The aim of this preliminary work was to study the use of the solvent extraction technique to recover tellurium and selenium ions from a synthetic solution similar to the cyanidation effluents to recycle the free cyanide b...

2007
Pu Chen Xiaojun Feng Wei Du Bi-Feng Liu

1. Abstract 2. Introduction 3. Principle and strategies for microfluidic cell sorting 3.1. Active multi-channel switch 3.2. Field flow fractionation 3.3. Local nonuniform field flow fractionation 3.4. Differential immobilization 3.5. Direct manipulation 4. Sorting mechanisms 4.1. Electric mechanism 4.2. Optical mechanism 4.3. Magnetic mechanism 4.4. Hydrodynamic mechanism 4.5. Acoustic mechanis...

In this paper, magnetically multiwalled carbon nanotubes (MMWCNTs) nanocomposite modified by methyl-2-[2-(2-2-[2-(methoxycarbonyl) phenoxy] ethoxyethoxy) ethoxy] benzoate was applied for magnetic solid-phase extraction (MSPE) of thallium(I) ions. Fourier transform infrared (FT-IR) spectroscopy, field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD) spectrometry and vibrat...

Journal: :Frontiers in Energy Research 2022

Implementation of remote monitoring technology for real wind turbine structures designed to detect potential sources failure is described. An innovative multi-axis contactless acoustic sensor measuring intensity as well previously known accelerometers were used this purpose. Signal processing methods proposed, including feature extraction and data analysis. Two strategies examined: Mel Frequenc...

Journal: :Dalton transactions 2013
Wenjuan Lu Patrick S Barber Steven P Kelley Robin D Rogers

A neutral thione extractant, 1,3-diethylimidazole-2-thione (C2C2ImT), was prepared from an ionic liquid (IL), 1,3-diethylimidazolium acetate, and used within a hydrophobic ionic liquid, 1-ethyl-3-methylimidazolium bis(trifluoromethane)sulfonamide ([C2mim][NTf2]), to extract Hg(II) from aqueous solutions of HgCl2 or Hg(OAc)2. Investigations of the extraction mechanism, spectroscopic analyses of ...

2009
E. J. BUCHANAN

The actual mechanism controlling the extraction of sucrose from cane in diffusers is still in dispute. It is generally believed that displacement washing or lixiviation is the governing process. Cane diffusers have been adapted from the vegetable oil extraction industry via the beet industry. A considerable portion of Chemical Engineering solid-liquid extraction design theory has been developed...

Journal: :اقتصاد و توسعه کشاورزی 0
حسین زاد حسین زاد جوادی جوادی حیاتی حیاتی پیش بهار پیش بهار دشتی دشتی

abstract the use of water sources has increased due to extend of agricultural activity for answering food needs of increasing population. while because of exploitation and consumption of water, the use of this restricted resource is not appropriate. consequently in many districts of country the head level of ground water aquifers have been fallen and water level is negative. so, application of ...

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