Search results

Computer Simulation of Vesicle Fusion Shaogui Wu1, a, Hongxia Guo2,b 1College of Chemistry and Materials Sciences, Sichuan Normal University, 610068, Chengdu, China. 2Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China.
The related time evolutions of structure properties have been monitored in details.

Amplification and bioinformatics analysis of IGS1 Sequence of Aurcularia auricular Yong Xiong1,a , Wansong Yue1,b ,Chunyan Zhao2,c,Cui Yang1,d 1 Key Laboratory of Ethnic Medicine Resource Chemistry/State Ethnic Affairs Commission & Ministry of Education, Yunnan University of Nationalities, Kunming 650500, P.R.China 2 Kunming Edible Fungi Institute of All China Federation of Supply and Marketing Cooporatives, Kunming 650221, P.R.China a17639121@qq.com,b459440031@qq.com,c 99558737@qq.com,dyangynni@163.com Key words: Aurcularia auricular; IGS1; Bioinformatics technology; Phylogenetic tree Abstract: The intergenic spacer 1 (IGS1) region in rRNA gene of Auricularia auricula was PCR-amplified and sequenced, and the sequence was analyzed by using bioinformatics technology.
However, the phenotypic variation of same type of strain is very large due to growth different environment, so There are certain difficulties based only on fruiting macro or micro classification and identification of morphological structure, so it is very important to choose the appropriate classification and identification method.
Acknowledgments This work was carried out with the financial support from the key Laboratory of chemistry in Ethnic Medicinal Resource, Yunnan University of Nationalities open fund (MZY1116 and MZY100106).

., Structure of (45-x)Na2O- xBaO-5ZnO-50P2O5 Glasses Studied by DSC and Infrared Spectroscopy, Materials Letters 56 (2002) 486-490
[3] Lakshmikantha, R., Rajaramakrishna, R., Anavekar, R.V. and Ayachit, N.H., Charaterization and Structural Studies of Lithium Doped Lead Zinc Phosphate Glass System, Materials Chemistry and Physics 133 (2012) 249-252
[4] Eraiah, B. and Bhat, Sudha G., Optical Properties of Samarium Doped Zinc-Phosphate Glass, Journal of Physics and Chemistry of Solids 68 (2007) 581-585

Research on influencing factors of crystallization of caffeine from tea Shuxia Guan 1,a, Chunhong Song2,b, Lei Ji3,a 1School of Chemistry and Chemical Engineering,Northeast Petroleum University, Daqing 163318,Heilongjiang. 2The 4th oil Production Plant, Daqing Oilfield Co. , Ltd. , Daqing 163154, Heilongjiang.
can be used in the production of these tea caffeine．So from tea extract caffeine prospects．This text taking water as the solvent extraction of caffeine in tea，then use metal ion precipitating agent damage tea polyphenols and caffeine force between，filter after enrichment crystallization．The method all aspects of the conditions, and discusses its feasibility． 2 Experimental Section 2.1 Experiment principle Tea generally contain a variety of xan family alkaloids，mainly caffeine，in addition to a small number of theophylline and theobromine, cellulose, protein, tea polyphenol, tannic acid．This experiment using caffeine soluble in water properties, explore use hot water leaching, and concentration crystal precipitation of caffeine, the feasibility of this method．But as a result of tannic acid and soluble in water，and it is of high content of tea，accounts for about 10%-20%，in order to avoid the influence of the crystallization of the caffeine, should first try to remove tannin．The tannin structure
[2]He Shu-Mei, Liu Jing-Lan．Study on the Determ inationM ethod of Flavone Content in Tea [J]．Chinese Journal of Analytical Chemistry．2007，35：1365~1368

Precipitation in Nanchang City chemical analysis Acid rain mainly contains the cations H +, Ca2 +, NH4 +, Na +, K +, Mg2 +, major anions SO42-, NO3-, Cl-, HCO3-, by precipitation chemistry into a major anion content relationship with PH in Figure 3.20, the highest rainfall in Nanchang City SO42- concentration, annual average 12.012mg / L, precipitation acidity mainly provided by SO42-, was sulfuric acid rain acid rain for sex.
By precipitation chemistry into a relationship with the major cation content of PH in Figure3, studies show that with the acidic weakened, [NH4 +] is increased, and [Ca2 +] + performance and the opposite relationship for the times I have done a lot of analysis, found an increase in precipitation NH4 + performance, while [Ca2 +] show a decreasing trend, while [NH4 +] is the main reason to make PH reduced, which is also due to the need for extensive validation.
A factor analysis of landscape pattern and structure metrics [J].Landscape Ecology, 1995, 10(1): 23~39

Synthesis of Carbohydrate-Conjugated Flavone Derivatives Ruchun Yang *a, Tao Hub, Xiaojun Wangc and Qiang Xiaod Key Laboratory of Organic Chemistry in Jiangxi province, Jiangxi Science & Technology Normal University, Nanchang 330013, China aouyangruchun@163.com, bhutao613077@163.com, c ncsywxj@163.com dxiaoqiang@tsinghua.org.cn Keywords: Flavone, Carbohydrate-conjuates, Antitumor, Sonogashira reaction.
Their structures were confirmed by various spectroscopies.
Xiao and Jun Wu, Letters in Organic Chemistry: Vol. 5 (2008), p. 518 [5] X.Y.

and porous structure of carbon materials.
[16] Ahmadi S, Igwegbe CA and Rahdar S 2019 International Journal of Industrial Chemistry 10(3) 249-60
[25] Tan CW, Tan KH, Ong YT, Mohamed AR, Zein SHS and Tan SH 2012 Environmental Chemistry Letters, 10(3) 265-73
[26] Roushani M, Rahmati Z and Dizajdizi BZ 2019 Journal of Electroanalytical Chemistry 847 113192
[43] Dang VC, Tran DT, Phan AT and Pham NK 2021 Journal of Physics and Chemistry of Solids 153 110005

Such a study and the understanding of the physical and chemistry mechanisms is extremely important for improving the shape and smoothness of the trench, for the purpose of manufacturing high mobility trench MOSFET [7].
The shift of D peak was induced by a weakly disordered structure, indicating that the samples contain defective graphite.
This again reveals that the coexistence of defective graphitic structure and SiC crystal occurred on SiC surface.
These double hill-and-valley structures consisted in alternating step edges and facets.
Ojamäe, Growth Mechanism of SiC CVD- Surface Etching by H2, H atoms and HCl, The Journal of Physical Chemistry, Vol.122, 10-11 (2018)

Introduction Benzimidazole compounds is an important pharmacophore and privileged structure in medicinal chemistry.
Many researchers have reviewed on the mode of action, structure-activity relationships (SAR) and activity of these mono-benzimidazole compounds.
In recent years, bis-benzimidazole compounds have attracted much attention due to the fact that their structure have two benzimidazole containing.
Mixed ligand complexes have a key role in biological chemistry because the mixed chelation occurs commonly in biological fluids as millions of potential ligands are likely to compete for metal ions in vivo[17].
Summary As was mentioned above, benzimidazole compounds is an important pharmacophore and privileged structure in antibacterial agents.

Ultrasonic and Density Studies of D (+) Mannose with Aqueous Electrolytes at 303K Yasmin Akhtar* Department of Chemistry, University of Tabuk, Tabuk, Saudia Arabia dryasminakhtar2004@yahoo.com *Corresponding author Keywords: D(+)mannose, Aqueous electrolytes, Adiabatic compressibility, Acoustic impedance, Apparent molal volume and apparent molal adiabatic compressibility.
Carbohydrates located at cell surfaces are important receptors for the bioactive structures of enzymes, hormones, viruses, antibodies etc.
The complex conformational and configurationally factors determining the structure of carbohydrates in aqueous electrolytes solutions [7-9].
The change in structure of solvent or solution as a result of H- bond formation leads to decrease in intermolecular free length.
Ahmad, Department of Chemistry, University of Tabuk, K.S.A for their co-operation and valuable suggestions.