Non-Conventional Approach for Deacidification of Fumed Silica

2010 ◽  
Vol 97-101 ◽  
pp. 648-651
Author(s):  
Dong Hua Chen ◽  
Yun Ying Fan ◽  
Jin Hu
Keyword(s):  
Microwave Irradiation ◽  
Specific Surface ◽  
Fumed Silica ◽  
Fluidized Beds ◽  
Cost Effective ◽  
High Specific Surface Area ◽  
The Body ◽  
Aggregation Process ◽  
New Approach ◽  
Cost Effective Method

A fluidized beds method used in the industry for deacidification of the fumed silica has several drawbacks. The present work was intended to develop a simple, rapid and cost-effective method for the deacidification of fumed silica with high specific surface area using microwave technique. The effect of microwave irradiation on the body of the fumed silica has been investigated. The experimental results show that the microwave irradiation technique has been effective in deacidification and suppressing the aggregation process of fumed silica. This new approach may be useful to accelerate the deacidification process and avoid the aggregation growth.

EEG Based Detection of Alcoholics

2012 ◽  
Vol 1 (1) ◽  
pp. 59-76 ◽  
Author(s):  
T. K. Padma Shri ◽  
N. Sriraam
Keyword(s):  
Human Brain ◽  
Imaging Techniques ◽  
Cost Effective ◽  
The Body ◽  
Long Term Effects ◽  
Non Invasive ◽  
Positron Emission ◽  
Cost Effective Method ◽  
Magnetic Resonance Imaging Mri ◽  
Neuro Imaging

The short term and long term effects of alcohol on various organs of the body, especially on the human brain is well established by numerous studies. Invasive methods such as Transcranial Magnetic Stimulation (TMS) and non invasive imaging techniques such as Computed Tomography (CT), Magnetic Resonance Imaging (MRI), Positron Emission Tomography (PET), and functional MRI activated electro-encephalogram (EEG) have been used to study the changes in EEG activity due to alcoholism. Even with the advent of neuro imaging techniques, EEG happens to be an important tool for brain study providing a non- invasive and cost effective method to detect the effects of alcohol on the human brain. This paper discusses the harmful effects of alcohol on different organs of the body. The advances in the development of EEG signal processing algorithms over the past decade for alcoholic detection are reviewed and their limitations are reported. Further the use of EEG for mass screening of alcoholics and biometric application is discussed in detail.

scholarly journals New Insights on the Estimation of the Anaerobic Biodegradability of Plant Material: Identifying Valuable Plants for Sustainable Energy Production

Processes ◽  
2020 ◽  
Vol 8 (7) ◽  
pp. 806 ◽  
Author(s):  
Claudia P. Pabón-Pereira ◽  
H. V. M. Hamelers ◽  
Irene Matilla ◽  
Jules B. van Lier
Keyword(s):  
Plant Material ◽  
Energy Production ◽  
Predictive Accuracy ◽  
Sustainable Energy ◽  
Cost Effective ◽  
Acid Detergent Fiber ◽  
New Approach ◽  
Anaerobic Biodegradability ◽  
Cost Effective Method ◽  
Energy Plants

Based on fifteen European plant species, a statistical model for the estimation of the anaerobic biodegradability of plant material was developed. We show that this new approach represents an accurate and cost-effective method to identify valuable energy plants for sustainable energy production. In particular, anaerobic biodegradability (Bo) of lignocellulosic material was empirically found to be related to the amount of cellulose plus lignin, as analytically assessed by the van Soest method, i.e., the acid detergent fiber (ADF) value. Apart from being theoretically meaningful, the ADF-based empirical model requires the least effort compared to the other four proposed conceptual models proposed, as individual fractions of cellulose, hemicellulose, and lignin do not need to be assessed, which also enhances the predictive accuracy of the model’s estimation. The model’s results showed great predictability power, allowing us to identify interesting crops for sustainable crop rotations. Finally, the model was used to predict Bo of 114 European plant samples that had been previously characterized by means of the van Soest method.

scholarly journals X-raying planktonic foraminifera

1988 ◽  
Vol 7 (1) ◽  
pp. 43-44
Author(s):  
P. N. Leary ◽  
M. B. Hart
Keyword(s):  
Planktonic Foraminifera ◽  
Cost Effective ◽  
New Approach ◽  
Biometric Analysis ◽  
Cost Effective Method

Abstract. X-raying planktonic foraminifera provides a rapid, efficient and cost-effective method of recording many specimens for biometric analysis. A new approach is here proposed which replaces previous complicated techniques.

Facile one-pot synthesis of sugar–thiazolidinone derivatives

2011 ◽  
Vol 89 (11) ◽  
pp. 1382-1386 ◽  
Author(s):  
Ali Darehkordi ◽  
Kazem Saidi ◽  
Somayeh Ghazi
Keyword(s):  
Microwave Irradiation ◽  
Ambient Temperature ◽  
Cost Effective ◽  
Solvent Free ◽  
One Pot ◽  
One Pot Synthesis ◽  
Cost Effective Method ◽  
Solvent Free Conditions ◽  
High Yields

A simple, efficient, and cost-effective method for the synthesis of a series of sugar–thiazolidinone derivatives by a one-pot reaction of the corresponding thiosemicarbazone of d-galactose, d-glucose, and d-mannose compounds in the presence of dimethyl or diethyl acetylenedicarboxylate is described. Two different methods were used and high yields were obtained in both cases: (A) in EtOAC–H2O at an ambient temperature and (B) microwave irradiation under solvent-free conditions.

Microwave-assisted Oxidation of 3,4-Dihydropyrimidin-2(1H)-ones

2009 ◽  
Vol 64 (5) ◽  
pp. 532-540 ◽  
Author(s):  
Hamid Reza Memarian ◽  
Hassan Sabzyan ◽  
Asadollah Farhadi
Keyword(s):  
Microwave Irradiation ◽  
Cost Effective ◽  
Microwave Assisted ◽  
Cost Effective Method ◽  
Potassium Peroxydisulfate ◽  
Water As Solvent ◽  
Rate Of Reaction ◽  
Acetyl Group ◽  
Electron Withdrawing Group ◽  
Derivatives Of

A new facile cost-effective method for the oxidation of acetyl and carboethoxy derivatives of 3,4- dihydropyrimidin-2(1H)-ones (DHPMs) by using potassium peroxydisulfate in water as solvent under microwave irradiation has been developed. Whereas the presence of the acetyl group instead of the carboethoxy group in position 5 decreases the rate of oxidation, the nature of the additional subtituent (electron-donating or electron-withdrawing group) and its location on the phenyl ring (ortho-, meta- or para-position) attached to C-4 of the dihydropyrimidinone ring influence the rate of reaction. Increase in the rate of the reaction compared with that of the reaction under reflux condition is the advantage of the use of microwave irradiation for this oxidation method.

scholarly journals P.084 Single-centre follow-up of TYRX Antibiotic Envelope for neuromodulation unit implantation

2017 ◽  
Vol 44 (S2) ◽  
pp. S34-S35
Author(s):  
S Ahmed ◽  
K Waterhouse ◽  
A Vitali
Keyword(s):  
Chart Review ◽  
Retrospective Chart Review ◽  
Cost Effective ◽  
The Body ◽  
Control Group ◽  
Single Centre ◽  
Significant Drop ◽  
Single Center Experience ◽  
Cost Effective Method

Background: Studies have placed the rate of infection associated with neuromodulation units to be up to 20%. We present our experience with the TYRX absorbable antibiotic envelope. Our length of follow-up adds to the body of evidence around the use of antibiotic envelops. Methods: We conducted a retrospective chart review of patients referred to our center for either new implantation or revision of neuromodulation units between July 2014 and September 2016. Consecutive cases were included for analysis. We included a control group of consecutive patients with neuromodulation units placed immediately prior to our experience with the TYRX envelopes for comparison Results: Between July 2014 and September 2016, 76 patients had 81 instances of neuromodulation unit insertion. All patients received the TYRX antibiotic envelope. There were no incidences of infection involving antibiotic envelope-containing implants over an average follow-up period of 11 months. In 77 consecutive cases of neuromodulation unit implantation prior to usage of the antibiotic pouch, there were 4 instances of infection (5.2%). Conclusions: Our single center experience demonstrates a significant drop in the rate of infections with the use of an antibiotic envelope for neuromodulation unit implantation. We consider the routine use of the envelope to be a cost-effective method of infection avoidance.

CAD Of Anticorrosive Protection Of Steel Structures

2019 ◽  
pp. 18-23
Keyword(s):  
Protective Coating ◽  
Computer Aided Design ◽  
Steel Structures ◽  
Cost Effective ◽  
Operating Conditions ◽  
Computational Tool ◽  
Protection Method ◽  
Cost Effective Method ◽  
The Cost ◽  
Aided Design

The choice of cost-effective method of anticorrosive protection of steel structures is an urgent and time consuming task, considering the significant number of protection ways, differing from each other in the complex of technological, physical, chemical and economic characteristics. To reduce the complexity of solving this problem, the author proposes a computational tool that can be considered as a subsystem of computer-aided design and used at the stage of variant and detailed design of steel structures. As a criterion of the effectiveness of the anti-corrosion protection method, the cost of the protective coating during the service life is accepted. The analysis of existing methods of steel protection against corrosion is performed, the possibility of their use for the protection of the most common steel structures is established, as well as the estimated period of effective operation of the coating. The developed computational tool makes it possible to choose the best method of protection of steel structures against corrosion, taking into account the operating conditions of the protected structure and the possibility of using a protective coating.

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