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Online since: May 2012
Authors: Jian Zhang, Xuan Jun Wang
When the catalyst amount exceeded 2%, there was little improvement in the reduction of acid value of ZSO.
With further increases in temperature there was no reduction in the acid value and the optimum temperature was fixed at 60℃.
Based on the analytical data (Table.2), the higher the value of the standard deviation, the greater the influence of the factor, RB>RA>RD>RC compares the factors influencing esterification [n(methanol):n(ZSO) > w(catalyst) > reaction temperature > reaction time].
With further increases in temperature there was no reduction in the acid value and the optimum temperature was fixed at 60℃.
Based on the analytical data (Table.2), the higher the value of the standard deviation, the greater the influence of the factor, RB>RA>RD>RC compares the factors influencing esterification [n(methanol):n(ZSO) > w(catalyst) > reaction temperature > reaction time].
Online since: January 2012
Authors: Yu Mei Ding, Wei Min Yang, Peng Cheng Xie, Zhi Bian
In recent times, microcellular injection molding have attracted great interest due to the considerable enhancement in stiffness, and substantial improvements in mechanical, thermal, and flammability properties while realizing part weight reduction by replacing plastics with the supercritical fluid (SCF).
Since the shrinkage and warpage at the far away gate position was slightly greater than at that gate position, the “ nominal-the-better ” method was used to compute the S/N ratio of the measured data and to obtain the S/N response.
This study also quantitatively showed that, especially for the glass fibers reinforced PP, a reduction in the shrinkage and warpage could be achieved with the microcellular injection mold process.
Since the shrinkage and warpage at the far away gate position was slightly greater than at that gate position, the “ nominal-the-better ” method was used to compute the S/N ratio of the measured data and to obtain the S/N response.
This study also quantitatively showed that, especially for the glass fibers reinforced PP, a reduction in the shrinkage and warpage could be achieved with the microcellular injection mold process.
Online since: April 2012
Authors: N. Chiewchan, S. Devahastin, H. Thangvaravut
From a preliminary study (data not shown), the minimum inhibitory concentration (MIC) of 1,8-cineole that could control the growth of S.
Approximately, 3-4 log reduction in Salmonella numbers could be obtained by the end of the storage period.
, 2003, 4:1457-1465; [4] Hosteini, M.H., Razavi, S.H., & Mousavi, M.A., Antimicrobial, Physical and Mechanical Properties of Chitosan-based Films Incorporated with Thyme, Clove and Cinnamon Essential Oils [J], Journal of Food Processing and Preservation, 2009, 33:727 – 743; [5] Pranoto, Y., Rakshit, S.K. & Salokhe, V.M., Enhancing Antimicrobial Activity of Chitosan Films by Incorporating Garlic Oil, Potassium Sorbate and Nisin [J], LWT-Food Science and Technology, 2005, 38:859–865; [6] Sadlon A.E., & Lamson D.W., Immune-Modifying and Antimicrobial Effects of Eucalyptus Oil and Simple Inhalation Devices [J], Alternative Medicine Review, 2010, 15 (1):33-47; [7] Mayachiew, P., Devahastin, S., Mackey, B.M., & Niranjan, K., Effects of Drying Methods and Conditions on Antimicrobial Activity of Edible Chitosan Films Enriched with Galangal Extract [J], Food Research International, 2010, 43:125–132; [8] Guillard V., Issoupov V., Redl A., & Gontard N., Food Preservative Content Reduction
Approximately, 3-4 log reduction in Salmonella numbers could be obtained by the end of the storage period.
, 2003, 4:1457-1465; [4] Hosteini, M.H., Razavi, S.H., & Mousavi, M.A., Antimicrobial, Physical and Mechanical Properties of Chitosan-based Films Incorporated with Thyme, Clove and Cinnamon Essential Oils [J], Journal of Food Processing and Preservation, 2009, 33:727 – 743; [5] Pranoto, Y., Rakshit, S.K. & Salokhe, V.M., Enhancing Antimicrobial Activity of Chitosan Films by Incorporating Garlic Oil, Potassium Sorbate and Nisin [J], LWT-Food Science and Technology, 2005, 38:859–865; [6] Sadlon A.E., & Lamson D.W., Immune-Modifying and Antimicrobial Effects of Eucalyptus Oil and Simple Inhalation Devices [J], Alternative Medicine Review, 2010, 15 (1):33-47; [7] Mayachiew, P., Devahastin, S., Mackey, B.M., & Niranjan, K., Effects of Drying Methods and Conditions on Antimicrobial Activity of Edible Chitosan Films Enriched with Galangal Extract [J], Food Research International, 2010, 43:125–132; [8] Guillard V., Issoupov V., Redl A., & Gontard N., Food Preservative Content Reduction
Online since: May 2007
Authors: M.A. Abdel-Rahman, Emad A. Badawi, M. Abdel-Rahman, N.A. Kamel, M.S. Abdallah
The samples were annealed for 12h
at 673K, and then plastically deformed at room temperature, using an hydraulic press,
to a thickness reduction of 25% with respect to the original dimension.
The data for the lifetime spectra were analyzed by using the PATFIT88 computer program [12].
The mean lifetime of positrons (τ) reflects the characteristics of defect formation as a function of the degree of thickness reduction.
The data for the lifetime spectra were analyzed by using the PATFIT88 computer program [12].
The mean lifetime of positrons (τ) reflects the characteristics of defect formation as a function of the degree of thickness reduction.
Online since: June 2011
Authors: Wan Li Zhang, Yan Rong Li, Ru Jun Tang
The reduction of Ms should be attributed to the reduced volume fraction of Co atoms in the film.
This should be attributed to the simultaneous reduction of Ku and Ms which resulted in a stable anisotropy field.
Lim Boon Chow from the Data Storage Institute in Singapore.
This should be attributed to the simultaneous reduction of Ku and Ms which resulted in a stable anisotropy field.
Lim Boon Chow from the Data Storage Institute in Singapore.
Online since: October 2011
Authors: Rui zhang, Bing Yan Hu, Zhong Bing Ye, Ni Qin
A common finding is that addition of a simple electrolyte (salt) leads to a reduction in the viscosity of polymer in auqeous solution.
Also presented in this figure are the viscosity data changing from 750mPa·s to 0 mPa·s.
The effect of shield reduces the carboxylate repulsion of the polymer backbone, leading to a reduction in the molecular coil size which is reflected.
Also presented in this figure are the viscosity data changing from 750mPa·s to 0 mPa·s.
The effect of shield reduces the carboxylate repulsion of the polymer backbone, leading to a reduction in the molecular coil size which is reflected.
Online since: September 2018
Authors: C.P. Couto, R. Politano, M.A. Colosio, J.L. Rossi, Maurilio Pereira Gomes
It is a strategic product to help the automakers satisfying safety needs and fuel reduction requirements by means of the lightweight design concept, a current trend for new vehicles [1].
An oxide layer can be observed after the hot stamping which is beneficial as it prevents the reduction of the Zn by evaporation.
The GDOES is a useful technique to diffusion analyses, once it gives data input to follow the diffusional process in hot stamped steel.
An oxide layer can be observed after the hot stamping which is beneficial as it prevents the reduction of the Zn by evaporation.
The GDOES is a useful technique to diffusion analyses, once it gives data input to follow the diffusional process in hot stamped steel.
Online since: June 2018
Authors: Tatsuo Fujimoto, Noboru Ohtani, Kiyo Okawa, Hiroshi Tsuge, Kentaro Shioura, Yuina Mannen, Masakazu Katsuno, Shinya Sato
The temperature dependencies exhibit characteristic behaviors depending on the current flow direction and the number of high-temperature annealing rounds (the abrupt jump around 100K in the data for the resistivity parallel to the basal plane after the 3rd annealing is an artifact).
The mechanism of the observed reduction of the SF density is yet to be clarified.
The measured SF densities in the crystals, where the reduction of SF density was observed after annealing, were well correlated with the resistivity changes.
The mechanism of the observed reduction of the SF density is yet to be clarified.
The measured SF densities in the crystals, where the reduction of SF density was observed after annealing, were well correlated with the resistivity changes.
Online since: August 2013
Authors: Hai Xia Huang, Hao Sun, Yi Hua Feng, Fu Meng Li
One was a reduction in contact length between chip and tool, the other was owed to forming a lubricating film with low shear stress [14].
Different materials in composite tool can play anti-friction in a certain temperature range, which is beneficial to the reduction of the friction coefficient [15].
Different solid lubricant mixed with other different materials, and embedded in the ceramic tool’s position, the number and the shape of the groove, sizes will produce a huge impact on tool performance, but these data have no professional books for reference, only through the large number of experiments improve gradually, and find some better ways.
Different materials in composite tool can play anti-friction in a certain temperature range, which is beneficial to the reduction of the friction coefficient [15].
Different solid lubricant mixed with other different materials, and embedded in the ceramic tool’s position, the number and the shape of the groove, sizes will produce a huge impact on tool performance, but these data have no professional books for reference, only through the large number of experiments improve gradually, and find some better ways.
Online since: October 2014
Authors: Mihai Alin Girbaci, Lidia Gaiginschi, Iulian Agape
This is due to a reduction in the viscosity of the oil and, as a result, friction losses.
Engine cooling system can contribute in some of the engine aspects like reduction in fuel consumption and minimizing exhaust and fuel emission.
This data are expected because of the resulting increase in the thermal resistance of the coolant side due to its poorer thermal properties.
Engine cooling system can contribute in some of the engine aspects like reduction in fuel consumption and minimizing exhaust and fuel emission.
This data are expected because of the resulting increase in the thermal resistance of the coolant side due to its poorer thermal properties.