Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: May 2013
Authors: Hua Jun Wang, Ai Fei Yi, Hui Mei Yu
Taking final concentrate’s quality of a rough flotation and two clean flotations considered, JZQ - F7 used for low grade phosphate rock flotation in the recovery effect is better, and has a certain practical application feasibility.
3.1 Adsorption and synergy of mixed fatty acids with different structures on the mineral
Catering waste oil, which contains various kinds of fatty acid oils, can hydrolyze to different kinds of fatty acid soaps in alkaline alcohol solution.
So different fatty acids in JZQ - F7 show different adsorption activity on the phosphorus surfaces of different active areas. 3.2 Flotation solution chemistry of mixed fatty acids in JZQ - F7 Mixed fatty acids in JZQ - F7 will happen a certain degree of hydrolysis reaction in aqueous solution.
Mixed fatty acids with different structures in JZQ - F7 have synergy between each other, and they make property of JZQ - F7 be equivalent to combination drugs and better than that of single.
[9] Dean J.A., Lange’s Handbook of Chemistry ( 15th Edition ) McGraw-Hill, 1999. 571 - 575.
So different fatty acids in JZQ - F7 show different adsorption activity on the phosphorus surfaces of different active areas. 3.2 Flotation solution chemistry of mixed fatty acids in JZQ - F7 Mixed fatty acids in JZQ - F7 will happen a certain degree of hydrolysis reaction in aqueous solution.
Mixed fatty acids with different structures in JZQ - F7 have synergy between each other, and they make property of JZQ - F7 be equivalent to combination drugs and better than that of single.
[9] Dean J.A., Lange’s Handbook of Chemistry ( 15th Edition ) McGraw-Hill, 1999. 571 - 575.
Effect of Nd3+ Concentration on the Physical and Absorption Properties of Soda-Lime-Silicate Glasses
Online since: January 2010
Authors: Jakrapong Kaewkhao, Pichet Limsuwan, Parnuwat Chimalawong
The
spectroscopic behaviour of rare-earth ions are strongly affected by the local structure at the rareearth
sites and the distribution of the doped ions in the glass matrix [4].
The addition of an extra cation to the glass network exerts an influence on the glass structure leading to the local change of the bridging oxygen (BO) and nonbridging oxygen (NBO) distribution.
Kishore: Materials Chemistry and Physics, Vol. 90 (2005) p.83 [7] K.J.
Rao: Structural Chemistry of Glasses (Elsevier Science Ltd., 2002) [8] B.
The addition of an extra cation to the glass network exerts an influence on the glass structure leading to the local change of the bridging oxygen (BO) and nonbridging oxygen (NBO) distribution.
Kishore: Materials Chemistry and Physics, Vol. 90 (2005) p.83 [7] K.J.
Rao: Structural Chemistry of Glasses (Elsevier Science Ltd., 2002) [8] B.
Online since: May 2011
Authors: Ji You Gu, Xian Kai Jiang, Yan Hua Zhang
The improvement of mechanical properties of polyurethane coating by multi-walled carbon nanotubes
Xiankai Jiang1, 2, 3, a, Jiyou Gu2,b and Yanhua Zhang2,c
1School of Chemistry and Material Science, Heilongjiang University, Harbin, China
2College of Material Science and Engineering, Northeast Forestry University, Harbin, China
3Key Laboratory of Chemical Engineering Process and Technology for High-efficiency Conversion, College of Heilongjiang Province, Harbin, China
axiankaijiang@hotmail.com, bdldgujy@yahoo.cn, czyhnefu@163.com
Keywords: Polyurethane; Coating; Multi-walled carbon nanotube; Mechanical property; Improve
Abstract.
Carbon nanotubes have attracted increasing attention due to their unique structure, excellent electrical and thermal conductivity, together with their excellent mechanical properties[3-5].
The unique properties of CNTs make them attractive for applications in many scientific and technological field such as electronic structures, polymer composites, and biological systems[6-10].
Chen: Macromolecular Chemistry and Physics Vol. 207 (2006), p. 1945-1952 [4] Y.C.
Carbon nanotubes have attracted increasing attention due to their unique structure, excellent electrical and thermal conductivity, together with their excellent mechanical properties[3-5].
The unique properties of CNTs make them attractive for applications in many scientific and technological field such as electronic structures, polymer composites, and biological systems[6-10].
Chen: Macromolecular Chemistry and Physics Vol. 207 (2006), p. 1945-1952 [4] Y.C.
Online since: February 2025
Authors: Jeri Tangalajuk Siang, Veronika Asri Tandirerung, Inong Oskar
The cross-sectional structure of the cashew shell or cashew pod is shown in the following figure 1 [3].
Bottom ash from cashew shells has potential as a thermal insulator due to its porous structure, but its stability and durability in practical applications need to be considered.
Topics in Current Chemistry, p. 376, 2018, doi: 10.1007/s41061-017-0177-9
Available: https://coeng.uobaghdad.edu.iq/wp-content/uploads/sites/3/ uploads/ammar data 2017/lectures/chemistry/clases/انتقال حرارة مرحلة ثالثة/Heat Transfer, Tenth Edition.pdf [7] U. et all Khalid, “Experimental and numerical techniques to evaluate coal/biomass fly ash blend characteristics and potentials,” Sci.
Bottom ash from cashew shells has potential as a thermal insulator due to its porous structure, but its stability and durability in practical applications need to be considered.
Topics in Current Chemistry, p. 376, 2018, doi: 10.1007/s41061-017-0177-9
Available: https://coeng.uobaghdad.edu.iq/wp-content/uploads/sites/3/ uploads/ammar data 2017/lectures/chemistry/clases/انتقال حرارة مرحلة ثالثة/Heat Transfer, Tenth Edition.pdf [7] U. et all Khalid, “Experimental and numerical techniques to evaluate coal/biomass fly ash blend characteristics and potentials,” Sci.
Online since: December 2003
Authors: P. Boudeville, B. Pauvert, H. El Briak-BenAbdeslam, A. Terol
For y = 4 and thus x =
0, the XRD pattern of the heated product well complied with the JCPDS file 34-480 corresponding
to Ca6Sr4(PO4)6(OH)2 indicating the total integration of strontium in the apatitic structure.
Structure and Chemistry of the Apatites and other Calcium Orthophosphates.
Studies in Inorganic Chemistry 18, Elsevier, Amsterdam 1994, p 29
Structure and Chemistry of the Apatites and other Calcium Orthophosphates.
Studies in Inorganic Chemistry 18, Elsevier, Amsterdam 1994, p 29
Online since: June 2012
Authors: Zhi Qiang Hu, De Feng Huang, Hong Gao, Jing Xiao Liu, Xian Qing Liu
Nickel Chromite (NiCr2O4) crystallizes, as do numerous other A2+B23+O4 compounds, with the spinel structure.
They clearly reveal that the crystalline phase of the NiCr2O4 at 1000 °C is spinel structure.
Chemistry and Materials Science. 51(2009)48-52
Journal of Industrial and Engineering Chemistry. 403(2010)609-614
They clearly reveal that the crystalline phase of the NiCr2O4 at 1000 °C is spinel structure.
Chemistry and Materials Science. 51(2009)48-52
Journal of Industrial and Engineering Chemistry. 403(2010)609-614
Online since: October 2014
Authors: F.H. Froes, B. Dutta
Item
Laser based PBF (Ex: DMLS)
Electron beam based PBF (Ex: EBM)
Laser based Directed Energy Deposition (Ex: DMD)
Build envelop
Limited
Limited
Large & flexible
Beam size
Small, 0.1-0.5 mm
Small, 0.2-1 mm
Large, can vary from 2-4 mm
Layer thickness
Small, 50-100 mm
Small, 100 mm
Large, 500-1000 mm
Build rate
Low, cc/h
Low, 55-80 cc/h
High, 16-320 cc/h
Surface finish
Very good, Ra 9/12 mm, Rz 35/40 mm
Good, Ra 25/35 mm
Coarse, Ra 20-50 mm, Rz 150-300 mm, Depends on beam size
Residual stress
High
Minimal
High
Heat treatment
Stress relieve required, HIP’ing preferred
Stress relieve not required, HIP’ing may/ may not be performed
Stress relieve required, HIP’ing preferred
Chemistry
ELI grade possible, negligible loss of elements
ELI grade possible, loss of Al need to be compensated in powder chemistry
ELI grade possible, negligible loss of elements
Build capability
Complex geometry possible with very high resolution.
The PBF technologies produce complex geometries with high precision and unsupported structures.
The as-built microstructure of Ti-6Al-4V DED material exhibits the typical martensitic structure expected after cooling rapidly from the beta phase field, while HIP’d and aged material shows the expected grain boundary alpha and inter-granular coarse alpha plates.
The PBF technologies produce complex geometries with high precision and unsupported structures.
The as-built microstructure of Ti-6Al-4V DED material exhibits the typical martensitic structure expected after cooling rapidly from the beta phase field, while HIP’d and aged material shows the expected grain boundary alpha and inter-granular coarse alpha plates.
Online since: January 2012
Authors: Zhi Hua Cui, Wei Guo Chen, Bing Tao Tang, Jiang Chao Guo
The correlation between the structures of sulfonamide disperse dyes and their availability on PLA fabric is discussed, and dye exhaustion, color strength as well as fastness properties of the dyes on PLA fabric are assessed in comparison to that of C.I.
With the introduction of sulfonamide moiety to the molecular structure of SY-14, dye exhaustion differs a lot based on the type of sulfonamide dye.
Acknowledgements The authors are grateful to the Zhejiang Provincial Natural Science Foundation of China (Y4090227), Zhejiang Provincial Top Key Academic Discipline of Applied Chemistry and Eco-Dyeing & Finishing Engineering (ZYG2010008 and YR2010006) and Zhejiang Provincial Key Innovation Team (2010R50038) for financial support.
Tang, Frontiers of Chemistry in China. 3 (2008) 425
With the introduction of sulfonamide moiety to the molecular structure of SY-14, dye exhaustion differs a lot based on the type of sulfonamide dye.
Acknowledgements The authors are grateful to the Zhejiang Provincial Natural Science Foundation of China (Y4090227), Zhejiang Provincial Top Key Academic Discipline of Applied Chemistry and Eco-Dyeing & Finishing Engineering (ZYG2010008 and YR2010006) and Zhejiang Provincial Key Innovation Team (2010R50038) for financial support.
Tang, Frontiers of Chemistry in China. 3 (2008) 425
Online since: January 2012
Authors: Jian Meng Chen, Jun Hu, Lan Zhou, Qing Wei Zhou, Fang Wei, Li Li Zhang
The aerobic paracetamol-degrading granules had a compact structure with many different bacterial clusters.
Acknowledgments This work was supported by the National Natural Science Foundation of China (No.50908210) and Zhejiang Provincial Top Key Academic Discipline of Applied Chemistry and Eco-Dyeing & Finishing Engineering (Grant No: YR2010005).
M, Advanced oxidation chemistry of paracetamol.
[10] Yong-Qiang Liu, Benjamin Moy, Yun-Hua Kong, Joo-Hwa Tay, Formation, physical characteristics and microbial community structure of aerobic granules in a pilot-scale sequencing batch reactor for real wastewater treatment, Enzyme Microb.
Acknowledgments This work was supported by the National Natural Science Foundation of China (No.50908210) and Zhejiang Provincial Top Key Academic Discipline of Applied Chemistry and Eco-Dyeing & Finishing Engineering (Grant No: YR2010005).
M, Advanced oxidation chemistry of paracetamol.
[10] Yong-Qiang Liu, Benjamin Moy, Yun-Hua Kong, Joo-Hwa Tay, Formation, physical characteristics and microbial community structure of aerobic granules in a pilot-scale sequencing batch reactor for real wastewater treatment, Enzyme Microb.
Online since: June 2012
Authors: Shu Fang Wang
The support frame of this generator system is a key structure part.
Stress conditions of this frame under different kinds of structure materials are analyzed with finite element method.
Several structure materials are chosen for this optimization approximation of supporting frame.
That is to say, the destiny of structure materials plays an important role in optimizing material when there is no distinct difference of stress conditions between different materials for one certain structure and working load.
Clayton A. in: Epoxy Resins: Chemistry and Technology (Seconded.).
Stress conditions of this frame under different kinds of structure materials are analyzed with finite element method.
Several structure materials are chosen for this optimization approximation of supporting frame.
That is to say, the destiny of structure materials plays an important role in optimizing material when there is no distinct difference of stress conditions between different materials for one certain structure and working load.
Clayton A. in: Epoxy Resins: Chemistry and Technology (Seconded.).