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Online since: June 2021
Authors: Ren Bo Song, Yan Huang, Zhe Rui Zhang, Li Fang Yang, Huan Jun Wei
ZnO has a loose and porous structure, which is easy to absorb external solutions and deteriorate corrosion [16,17].
The effect of superhydrophobic structure on the micro-friction and wear properties of AZ91D magnesium alloy[J].
Corrosion resistance of hot-dip galvanized steel in simulated soil solution: A factorial design and pit chemistry study[J].
Study on the structure and corrosion resistance mechanism of hot-dip galvanized aluminum-magnesium coatings[D].
The effect of superhydrophobic structure on the micro-friction and wear properties of AZ91D magnesium alloy[J].
Corrosion resistance of hot-dip galvanized steel in simulated soil solution: A factorial design and pit chemistry study[J].
Study on the structure and corrosion resistance mechanism of hot-dip galvanized aluminum-magnesium coatings[D].
Online since: June 2022
Authors: Gilda Santos, Clara Pereira, José Morgado, Ana Rita Sousa, Renata Matos, O. Salomé G.P. Soares, Sergey A. Bunyaev, Gleb N. Kakazei, Cristina Freire, M. Fernando R. Pereira, André M. Pereira, Augusta Silva, João Ferreira, Patrícia Soares, José R.M. Barbosa
Pereira1,n*,
Clara Pereira2,o *
1IFIMUP - Institute of Physics for Advanced Materials, Nanotechnology and Photonics, Physics and Astronomy Department, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
2REQUIMTE/LAQV, Chemistry and Biochemistry Department, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal
3LSRE-LCM, Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr.
Optical microscope images were collected to provide information on the structure of the fabrics before and after their coating with the shielding materials.
Militky, Fiber-based structures for electromagnetic shielding – comparison of different materials and textile structures, Text.
Optical microscope images were collected to provide information on the structure of the fabrics before and after their coating with the shielding materials.
Militky, Fiber-based structures for electromagnetic shielding – comparison of different materials and textile structures, Text.
Online since: October 2022
Authors: Daniela Godina, Aigars Paze, Mikelis Kirpluks, Raimonds Makars, Janis Rizhikovs, Arnis Abolins
Suberinic Acid Isolation From Birch Outer Bark and their Characterization
Daniela Godina1,a*, Raimonds Makars1,2,b, Arnis Abolins1,c, Aigars Paze1,d, Mikelis Kirpluks1,e, Janis Rizikovs1,f
1Latvian State Institute of Wood Chemistry, Dzerbenes 27, LV-1006 Riga, Latvia
2PolyLabs SIA, Mukusalas iela 46, LV-1004, Riga, Latvia
a*daniela.godina@kki.lv, braimonds.makars@kki.lv, carnis.abolins@kki.lv, daigars.paze@kki.lv, emikelis.kirpluks@kki.lv, fjanis.rizikovs@kki.lv
Keywords: birch outer bark, suberin, suberinic acids, depolymerization
Abstract.
Depending on the isolation conditions, the chemical structure and mutual ratio of individual SA may change.
Method 1: SA samples were converted to the corresponding trimethylsilyl (TMS) derivatives and analyzed quantitatively by GC-MS, allowing the identification of monomeric structures present in the mixture.
The SA structure was analyzed by FTIR spectrometry data obtained with a Thermo Fisher Nicolet iS50 spectrometer at a resolution of 4 per cm−1, 32 scans.
Depending on the isolation conditions, the chemical structure and mutual ratio of individual SA may change.
Method 1: SA samples were converted to the corresponding trimethylsilyl (TMS) derivatives and analyzed quantitatively by GC-MS, allowing the identification of monomeric structures present in the mixture.
The SA structure was analyzed by FTIR spectrometry data obtained with a Thermo Fisher Nicolet iS50 spectrometer at a resolution of 4 per cm−1, 32 scans.
Online since: August 2021
Authors: Sedigheh Ghadamgahi
The Role of Particles and Clusters Size on the Catalytic Activity
of Different Types of Gold Nanocatalysts for Benzyl Alcohol Oxidation
Sedigheh Ghadamgahi
Department of Chemistry, East Tehran Branch, Islamic Azad University, Tehran, Iran
Email: maghadamgahi@gmail.com & s.ghadamgahi@iauet.ac.ir
Phone: +98-21-3359 4950 & Fax: +98-21-3359 4332
ORCID Number: 0000-0002-7015-5038
Keywords: Size effect; gold nanoparticles & nanoclusters; Vulcan carbon & Norit® activated carbon; Oxidation; Benzyl alcohol; Nanocatalysts.
The results indicate that size beside the type of the support structure had a profound influence on the particles size dependence on conversion efficiency, whereas selectivity showed only weak dependence on these variables.
Crystal structure, electrochemical and optical properties of [Au9(PPh3)8](NO3)3.
Preparation and x-ray structure investigation of [Au8(PPh3)7](NO3)2.2CH2Cl2 and Au6(PPh3)4[Co(CO)4]2.
The results indicate that size beside the type of the support structure had a profound influence on the particles size dependence on conversion efficiency, whereas selectivity showed only weak dependence on these variables.
Crystal structure, electrochemical and optical properties of [Au9(PPh3)8](NO3)3.
Preparation and x-ray structure investigation of [Au8(PPh3)7](NO3)2.2CH2Cl2 and Au6(PPh3)4[Co(CO)4]2.
Online since: November 2023
Authors: Kannan Sekar, Sathyaraj Sankar Lal
Notably, the route for transforming renewable resources into polymers follows green chemistry principles, including degradation design, pollutant control and the utilization of renewable feedstocks [1].
It’s apparent from the figure that, the epoxy samples irrespective of curing temperature depicted minimum impact strength showing its high brittleness owing to the presence of aromatic rings in its structure.
Manik, Influence of epoxidized linseed oil and sisal fibers on structure–property relationship of epoxy biocomposite, Polym.
Johncock, Effect of cure temperature on the structure and water absorption of epoxy/amine thermosets, Polym.
It’s apparent from the figure that, the epoxy samples irrespective of curing temperature depicted minimum impact strength showing its high brittleness owing to the presence of aromatic rings in its structure.
Manik, Influence of epoxidized linseed oil and sisal fibers on structure–property relationship of epoxy biocomposite, Polym.
Johncock, Effect of cure temperature on the structure and water absorption of epoxy/amine thermosets, Polym.
Online since: November 2015
Authors: H. Memon, M. Hussain, A.N. Sanbhal, A.Z. Abro, A.N. Khoso
Fig. 1 Product distribution channel structure [Czinkota and Ronkainen] [11]
According to Czinkota and Ronkainen, suggested the distribution channel for distribution of raw material in local and international market.
The structure of wool processing and its better utilization can only are achieved by designing and developing new technology and growth of industry in the region.
Such economical and sustainable approach may achieved by better infra-structure that will enable production of better quality for earnings and exports.
Fibre Chemistry, 43(6), 395-405
The structure of wool processing and its better utilization can only are achieved by designing and developing new technology and growth of industry in the region.
Such economical and sustainable approach may achieved by better infra-structure that will enable production of better quality for earnings and exports.
Fibre Chemistry, 43(6), 395-405
Online since: October 2015
Authors: Robert C. Pullar
The structure, solid state chemistry and magnetic properties of the relevant hexaferrites will be briefly covered in section 3, and we will look at the potential of aligned hexaferrite fibres, nanofibres and nanowires, composites and magnetoelectric materials in sections 2.3 and 2.4.
2.
For a comprehensive review of all hexaferrites ceramics, their solid state chemistry and their properties, see reference [2].
A perspective view of the structure is shown in fig. 12b, while fig. 12c depicts the stacking of the R and S blocks in the M structure.
(b) Perspective view of the Z structure [61]. 3.1.6.
As BaM is the most commercially important hexagonal ferrite, its solid state chemistry has been studied in much greater detail than that of the other hexagonal ferrites.
For a comprehensive review of all hexaferrites ceramics, their solid state chemistry and their properties, see reference [2].
A perspective view of the structure is shown in fig. 12b, while fig. 12c depicts the stacking of the R and S blocks in the M structure.
(b) Perspective view of the Z structure [61]. 3.1.6.
As BaM is the most commercially important hexagonal ferrite, its solid state chemistry has been studied in much greater detail than that of the other hexagonal ferrites.
Online since: November 2018
Authors: Dinesh Shinde, Kishore N. Mistry, Suyog Jhavar, Sunil Pathak
This is because, the filler with crystalline structure gives more strength, resistance to rupture, etc.
Compression pressure must increase gradually to reduce the formation of the porous structure of the terminal material.
Royal Society of Chemistry Advances, 4 (2014) 36777–36783
Quantitative analysis of heavy metals in automotive brake linings: A comparison between wet-chemistry based analysis and in-situ screening with a handheld X-ray fluorescence spectrometer.
Compression pressure must increase gradually to reduce the formation of the porous structure of the terminal material.
Royal Society of Chemistry Advances, 4 (2014) 36777–36783
Quantitative analysis of heavy metals in automotive brake linings: A comparison between wet-chemistry based analysis and in-situ screening with a handheld X-ray fluorescence spectrometer.
Online since: March 2025
Authors: A. Kandasamy, B. Ramesh
This network structure gives GMB their characteristic strength and durability[10].
Additionally, the fine particles in clay contribute to the mechanical strength of the GMB by enabling a dense packing structure.
Acoustic Insulation: (a) Dense Packing and Solid Structure: Beyond thermal insulation, GMB also excel in acoustic insulation.
Davidovits, Geopolymer chemistry and applications.
Han et al., “Smart concretes and structures: A review,” J.
Additionally, the fine particles in clay contribute to the mechanical strength of the GMB by enabling a dense packing structure.
Acoustic Insulation: (a) Dense Packing and Solid Structure: Beyond thermal insulation, GMB also excel in acoustic insulation.
Davidovits, Geopolymer chemistry and applications.
Han et al., “Smart concretes and structures: A review,” J.
Online since: March 2013
Authors: Árpád Bence Palotás
High resolution transmission electron microscopy (HRTEM) provides a very detailed observation of the particle structure.
The electrons which have passed through the sample and have either been forward scattered with no change in energy or direction, inelastically scattered, or elastically scattered can be collected by some type of electron detector to form an image of the internal structure of the material.
The copper in the spectra is from the grid structure supporting the carbon substrate.
[13] Speight, James G., The Chemistry and Technology of Petroleum, Marcel Dekker, New York and Basel, 1991
The electrons which have passed through the sample and have either been forward scattered with no change in energy or direction, inelastically scattered, or elastically scattered can be collected by some type of electron detector to form an image of the internal structure of the material.
The copper in the spectra is from the grid structure supporting the carbon substrate.
[13] Speight, James G., The Chemistry and Technology of Petroleum, Marcel Dekker, New York and Basel, 1991