GMR in Excess of 10% at Room Temperature and Low Magnetic Fields in Electrodeposited Cu/Co Nano-multilayer Structures

2006 ◽  
Vol 961 ◽  
Author(s):  
Dinesh K. Pandya ◽  
Priyanka Gupta ◽  
Subhash C. Kashyap ◽  
Sujeet Chaudhary
Keyword(s):  
Large Scale ◽  
Room Temperature ◽  
Multilayer Structures ◽  
Scale Production ◽  
Si Substrate ◽  
Nano Fabrication ◽  
Si Substrates ◽  
Current Trends ◽  
Large Scale Production ◽  
Multilayer Stacks

ABSTRACTElectrodeposition has emerged as a novel economically viable technique with large-scale production capabilities in modern day micro technologies. The current trends are to extend the potential of the electrodeposition to nano fabrication. We have successfully electrodeposited Cu/Co multilayers, exhibiting appreciably high GMR, on ITO as well as on Cu/Si substrates. Multilayer stacks with films in thickness range 1 – 10 nm were deposited. The Co layers have different mechanisms of growth on these substrates, thus resulting in different microstructure and topography of the electrodeposited films. This leads to different GMR behavior of the multilayers in both these cases. Room temperature GMR values of 15% at low fields are obtained on ITO substrate and higher values are possible on Cu/Si substrate.

Higher methane storage at low pressure and room temperature in new easily scalable large-scale production activated carbon for static and vehicular applications

Fuel ◽  
2013 ◽  
Vol 104 ◽  
pp. 813-821 ◽  
Author(s):  
Alfonso Policicchio ◽  
Enrico Maccallini ◽  
Raffaele Giuseppe Agostino ◽  
Federica Ciuchi ◽  
Alfredo Aloise ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Large Scale ◽  
Room Temperature ◽  
Low Pressure ◽  
Methane Storage ◽  
Scale Production ◽  
Large Scale Production

scholarly journals Fast-LPG Sensors at Room Temperature by α-Fe2O3/CNT Nanocomposite Thin Films

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
B. Chaitongrat ◽  
S. Chaisitsak
Keyword(s):  
Large Scale ◽  
Room Temperature ◽  
Chemical Vapor ◽  
Catalyst Particle ◽  
Nanocomposite Films ◽  
Scale Production ◽  
Fe Catalyst ◽  
Large Scale Production ◽  
Cvd Synthesis ◽  
Surface Morphologies

We present performance of a room temperature LPG sensor based on α-Fe2O3/CNT (carbon nanotube) nanocomposite films. The nanocomposite film was fabricated via the metallic Fe catalyst particle on CNTs in which both the catalyst particles and the CNT were simultaneously synthesized by chemical vapor deposition (CVD) synthesis and were subsequently annealed in air to create α-Fe2O3. These methods are simple, inexpensive, and suitable for large-scale production. The structure, surface morphologies, and LPG response of nanocomposite films were investigated. Raman spectroscopy and XPS analysis showed the formation of α-Fe2O3 on small CNTs (SWNTs). Morphological analysis using FE-SEM and AFM revealed the formation of the porous surface along with roughness surface. Additionally, the sensing performance of α-Fe2O3/CNTs showed that it could detect LPG concentration at lower value than 25% of LEL with response/recovery time of less than 30 seconds at room temperature. These results suggest that the α-Fe2O3/CNTs films are challenging materials for monitoring LPG operating at room temperature.

The Efficient Synthesis of 1,3-Diallyloxy-2-Propanol without Solvent

2011 ◽  
Vol 311-313 ◽  
pp. 2106-2109
Author(s):  
Xi Mei Liu ◽  
Yu Hu ◽  
Li Hua Feng
Keyword(s):  
Allyl Alcohol ◽  
Large Scale ◽  
Room Temperature ◽  
Low Cost ◽  
High Yield ◽  
Scale Production ◽  
Efficient Synthesis ◽  
Reaction Conditions ◽  
One Pot ◽  
Large Scale Production

An efficient and practical protocol for the preparation of 1,3-diallyloxy-2-propanol has been developed by one-pot reaction between epichlorohydrin and allyl alcohol in the presence of KOH without solvent at room temperature. This preliminary approach provides an environmentally-friendly synthetic route to 1,3-diallyloxy-2-propanol with many advantages, i. e., low cost, high yield, easy purification, mild reaction conditions, and large scale production.

Towards the large scale production of (La1-zCez)(Fe1-x-yMnySix)13Hnproducts for room temperature refrigeration

2014 ◽  
Vol 11 (5-6) ◽  
pp. 1059-1063 ◽  
Author(s):  
Charlotte Mayer ◽  
Alexandra Dubrez ◽  
Michel Pierronnet ◽  
Peter Vikner
Keyword(s):  
Large Scale ◽  
Room Temperature ◽  
Scale Production ◽  
Large Scale Production

scholarly journals A Review on Humidity, Temperature and Strain Printed Sensors—Current Trends and Future Perspectives

Sensors ◽  
2021 ◽  
Vol 21 (3) ◽  
pp. 739
Author(s):  
Dimitris Barmpakos ◽  
Grigoris Kaltsas
Keyword(s):  
Large Scale ◽  
Material Selection ◽  
Performance Comparison ◽  
Scale Production ◽  
Current Trends ◽  
Material Deposition ◽  
Large Scale Production ◽  
Digitally Controlled ◽  
Printed Sensors ◽  
And Performance

Printing technologies have been attracting increasing interest in the manufacture of electronic devices and sensors. They offer a unique set of advantages such as additive material deposition and low to no material waste, digitally-controlled design and printing, elimination of multiple steps for device manufacturing, wide material compatibility and large scale production to name but a few. Some of the most popular and interesting sensors are relative humidity, temperature and strain sensors. In that regard, this review analyzes the utilization and involvement of printing technologies for full or partial sensor manufacturing; production methods, material selection, sensing mechanisms and performance comparison are presented for each category, while grouping of sensor sub-categories is performed in all applicable cases. A key aim of this review is to provide a reference for sensor designers regarding all the aforementioned parameters, by highlighting strengths and weaknesses for different approaches in printed humidity, temperature and strain sensor manufacturing with printing technologies.

I. S. A. Baud. Forms of Production and Women's Labour: Gender Aspects of Industrialisation in India and Mexico. New Delhi: Sage Publications. 1992. 321 pp.Hardbound. Price: Indian Rs 295.00.

1993 ◽  
Vol 32 (1) ◽  
pp. 129-131
Author(s):  
Naureen Talha
Keyword(s):  
Large Scale ◽  
Indian Society ◽  
New Delhi ◽  
Scale Production ◽  
Female Labour ◽  
Self Employment ◽  
Commodity Production ◽  
Large Scale Production ◽  
Mexican Society ◽  
Small Production

The literature on female labour in Third World countries has become quite extensive. India, being comparatively more advanced industrially, and in view of its size and population, presents a pictures of multiplicity of problems which face the female labour market. However, the author has also included Mexico in this analytical study. It is interesting to see the characteristics of developing industrialisation in two different societies: the Indian society, which is conservative, and the Mexican society, which is progressive. In the first chapter of the book, the author explains that he is not concerned with the process of industrialisation and female labour employed at different levels of work, but that he is interested in forms of production and women's employment in large-scale production, petty commodity production, marginal small production, and self-employment in the informal sector. It is only by analysis of these forms that the picture of females having a lower status is understood in its social and political setting.

Large-Scale Production of Pottery at Gordion : Comparison of the Late Bronze and Early Phrygian Industries.

Paléorient ◽  
1996 ◽  
Vol 22 (1) ◽  
pp. 67-87 ◽  
Author(s):  
Robert C. Henrickson ◽  
M. J. Blackman
Keyword(s):  
Large Scale ◽  
Scale Production ◽  
Large Scale Production

An Efficient and Improved Process for the Synthesis of Itopride Hydrochloride and Trimethobenzamide Hydrochloride

2018 ◽  
Vol 15 (4) ◽  
pp. 572-575 ◽  
Author(s):  
Ponnusamy Kannan ◽  
Samuel I.D. Presley ◽  
Pallikondaperumal Shanmugasundaram ◽  
Nagapillai Prakash ◽  
Deivanayagam Easwaramoorthy
Keyword(s):  
Large Scale ◽  
Hydroxylamine Hydrochloride ◽  
Scale Production ◽  
One Pot ◽  
Hydrochloride Salt ◽  
Environmental Friendly ◽  
Large Scale Production ◽  
Non Ulcer Dyspepsia ◽  
Itopride Hydrochloride ◽  
Yield And Purity

Aim and Objective: Itopride is a prokinetic agent used for treating conditions like non-ulcer dyspepsia. Itopride is administered as its hydrochloride salt. Trimethobenzamide is used for treating nausea and vomiting and administered as its hydrochloride salt. The aim is to develop a novel and environmental friendly method for large-scale production of itopride and trimethobenzamide. Materials and Methods: Itopride and trimethobenzamide can be prepared from a common intermediate 4- (dimethylaminoethoxy) benzyl amine. The intermediate is prepared from one pot synthesis using Phyrdroxybenzaldehye and zinc dust and further reaction of the intermediate with substituted methoxy benzoic acid along with boric acid and PEG gives itopride and trimethobenzamide. Results: The intermediate 4-(dimethylaminoethoxy) benzylamine is prepared by treating p-hydroxybenzaldehyde and 2-dimethylaminoethyl chloride. The aldehyde formed is treated with hydroxylamine hydrochloride. The intermediate is confirmed by NMR and the purity is analysed by HPLC. Conclusion: Both itopride and trimethobenzamide were successfully synthesized by this method. The developed method is environmental friendly, economical for large-scale production with good yield and purity.

scholarly journals Cyanobacteria—From the Oceans to the Potential Biotechnological and Biomedical Applications

Marine Drugs ◽  
2021 ◽  
Vol 19 (5) ◽  
pp. 241
Author(s):  
Shaden A. M. Khalifa ◽  
Eslam S. Shedid ◽  
Essa M. Saied ◽  
Amir Reza Jassbi ◽  
Fatemeh H. Jamebozorgi ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Biomedical Applications ◽  
Large Scale ◽  
Biological Activities ◽  
Scale Production ◽  
Pharmacological Activities ◽  
Large Scale Production ◽  
Marine Products ◽  
Hiv 1 ◽  
Successful Phase

Cyanobacteria are photosynthetic prokaryotic organisms which represent a significant source of novel, bioactive, secondary metabolites, and they are also considered an abundant source of bioactive compounds/drugs, such as dolastatin, cryptophycin 1, curacin toyocamycin, phytoalexin, cyanovirin-N and phycocyanin. Some of these compounds have displayed promising results in successful Phase I, II, III and IV clinical trials. Additionally, the cyanobacterial compounds applied to medical research have demonstrated an exciting future with great potential to be developed into new medicines. Most of these compounds have exhibited strong pharmacological activities, including neurotoxicity, cytotoxicity and antiviral activity against HCMV, HSV-1, HHV-6 and HIV-1, so these metabolites could be promising candidates for COVID-19 treatment. Therefore, the effective large-scale production of natural marine products through synthesis is important for resolving the existing issues associated with chemical isolation, including small yields, and may be necessary to better investigate their biological activities. Herein, we highlight the total synthesized and stereochemical determinations of the cyanobacterial bioactive compounds. Furthermore, this review primarily focuses on the biotechnological applications of cyanobacteria, including applications as cosmetics, food supplements, and the nanobiotechnological applications of cyanobacterial bioactive compounds in potential medicinal applications for various human diseases are discussed.

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