Search results

Silica aerogel Aerogel is the gel solvent after drying in the case of maintained in the complete gel structure.
Silica aerogel drying method is to get rid of internal residual solvent and catalyst, and keep the gel structure completely.
It can prevent the occurrence of excessive shrinkage deformation and destruction of the structure in the drying process and reduce the extent of fragmentation by network structure enhancement and surface modification.
Cluster structure of silica aerogels investigated by laser ablation [J].Nano-structured Materials, 1998, 10(6):909-916
Progress of Chemistry,2010,in Chinese

Electronic Structure In this section we study the effects of oxygen adsorption on electronic structure of (8, 0) CNT.
First, the band structure and density of state (DOS) of the bare (8, 0) CNT is presented in Fig.2.
The calculated band structure and partial density of state (PDOS) of the chemisorbed O2-CNT system is presented in Fig.3.
In order to understand the observed hole doping effect, we compare the electronic structure of isolated oxygen molecule, being calculated in the same supercell as nanotube, with the electronic structure of the bare CNT.
Eklund, Chemical Physics Letters, Vol. 337, (2001), p.31–35, [15] Handbook of Chemistry & Physics(CRC Press2011).

Using on-axis samples we obtained more accurate fine structure parameters D and E for the P7 type center compared to that in our previous work using off-axis samples [12].
The angle between the principal axis of the fine structure tensor and the c axis for the P7b and P7'b centers is 70.5° and 71°, respectively.
Figures 2(a) and 2(b) show the detailed hf structure of the low-field lines P6b and P6'b in HPSI 4H- and 6H-SiC, respectively.
Using a field modulation amplitude of 0.01 mT, the two inner hf structures can be wellresolved for the P6'b line in 4H-SiC [Fig. 2(a)].
Detailed structures of hf lines can be seen in ×10 scale inserts of experimental and simulated spectra.

This is attributed to the roots' direct contact with sediment and water, along with the presence of specialized structures that enhance metal uptake [28].
The plant's ability to absorb these metals can be influenced by various factors, including water chemistry, root exudates, and physiological state.
Journal of Advances in chemistry, 13(11), 5997-6004, 2017
Klampfl, “Metabolization of pharmaceuticals by plants after uptake from water and soil: a review” Trends Anal Chemistry, 111, 13–26, 2019
Solms) infestation on the physico-chemistry, nutrient and heavy metal content of Badagry Creek and Ologe Lagoon, Lagos, Nigeria” Journal of Environmental Science and Technology, 5(2), 128–136, 2012

Conclusion In summary, the effect of heat treatment on the structure and electrochemical behaviour of 4 wt% Fe3O4/AC composite electrode has been investigated.
Wu, Nanocrystalline oxide sueprcaapcitors, Materials Chemistry and Physics 75 (2002) 6-11
Grant, A novel hybrid supercapacitor with a carbon nanotube cathode and an iron oxide/carbon nanotube composite anode, Journal of Materials Chemistry 19 (46) (2009) 8755

However, the relation between dielectric constant, dielectric loss factor and the genetic relationship for all three varieties is slightly pooler maybe caused the changing growth characteristics and genetic background after long time artificially planting or their different growth characteristics, tissue structure and density.
,Tobacco:Production,Chemistry and Technology, Blackwell Science Limited,Oxford,UK,1999,p.353-387
Chemistry of Natural Compounds, 26(1990), p.459-460

In offset printing, the application of the alcohol-free printing process, the water-based and non-solvent inks in flexo printing and the low-emission designs of printing machinery, makes the printing process more environmentally friendly, more in line with the green design concept. ⅲ Printing machinery is more energy efficient by using advanced power drive and power consumption control technology Because of the application of automation technology in printing press design, the mechanical structure of the press has been greatly simplified, making the transmission efficiency of printing machinery greatly improved and hence the energy consumption reduced.
initiatives of some printing companies that implement green strategies: 1） Promote green printing philosophy in the printing customers and keep in mind that most buyers of print are young people who are concerned about the environment and the sustainable development, and this generation is the fastest growing group the print industry needs to appeal to, and in terms of the features of younger generation, try to form the atmosphere of taking the green line in all aspects of printing business management, production, procurement and sales; 2） Use Forest Stewardship Council approved papers and certification process; 3） Paper waste classifying and recycling; 4） Marked and tracked reduction of paper waste and other waste; 5） Use of wind energy credit for electricity; 6） Use with zero VOC content of sheet-fed offset printing inks; 7） Use alcohol-free fountain solution; 8） Use of low VOC content of wash-up solutions; 9） Reduce energy use (use all fluorescent lighting, etc.); 10） Use chemistry-free
CTP printing process also brings a stable halftone dot size, and because these plates are chemistry-free, the printing stability is further enhanced, which brings improved register accuracy.

However, PET fibers are usually hydrophobic due to its chemical composition and molecular structure.
Acknowledge This work was financially supported by the National Natural Science Foundation of China (No. 31200719, 51403152, 51473122), the Natural Science Foundation of Tianjin (14JCQNJC14200), Open Foundation of Zhejiang Provincial Top Key Academic Discipline of Applied Chemistry and Eco-Dyeing & Finishing Engineering(project number: YR2012014) and Tianjin Science and Technology Support Program(No.09ZCKFSH00800).
Journal of Applied Biological Chemistry, 2005. 4: p. 213-217

Evaluation of Alloys Synthesized By Mechanical Alloying as Potential Anode Materials for Lithium-Ion Batteries Mario Wachtler1, Liliana Schiffini2, Ilaria Amadei1, Judith Serra Moreno 1, Bruno Scrosati1 and Giorgio Cocco 2 1 Department of Chemistry, University of Rome "La Sapienza"; P.le A.
Moro 5, 00185 Roma, Italy 2 Department of Chemistry, University of Sassari; V.
This phase separation results in an additional nano-structuring in-situ during charge, which helps to relieve mechanical strain.

The strength of ferrite is controlled by the steel chemistry and its grain size [9] while the martensite properties depend on its carbon concentration [3,4,9,10] and its scale [11].
The chemistry of the investigated steel is given in Table 1.
The martensite grain structure in low heating rate steels forms an almost complete fine scale network lying on ferrite grain boundaries whereas the martensite islands in DP steels produced at high heating rate (100 ºC/sec) are larger and mostly banded.