Search results

Preparation and Performance Characterization of Hemostatic Materials Feng-Ming Wang1,a ,Chang-Ping Wei1,b, Jing Li1,Shuang Sun1, Li-Dan Dong1 and Qin-Yi Liu2,c 1School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, China 2Second Hospital of Jilin University, Changchun 130022, China a798105817@qq.com, bchangpingwei@hotmail.com, c1226527208@qq.com Keywords: Nanometer chitosan, AgNO3,TiO2, characteristic, performance Abstract.
The structures of samples were characterized by IR, XRD, SEM etc.
In this article, nano chitosan nanoparticles was prepared from chitosan molecular,and it reacted with silver nitrate and calcium chloride solution,then nano composite chitosan hemostatic material was obtained.The structure was characterized by using FTIR, XRD and SEM, and the blood coagulation and hemostatic properties were  investigated.
Results and Discussion Structure Test and Analysis.
The position of the peak had a little change, it showed that chitosan basic crystallization structure did not change before and after degradation.But the diffraction intensity declined slightly after the degradation of chitosan, it showed that the degradation of chitosan had lower crystallinity.

Cavitation Wear of CuZn10 Alloy in As-Cast State and After Plastic Working and Annealing Robert JASIONOWSKI1,a*, Wojciech POLKOWSKI2,b and Dariusz ZASADA2,c 1 Maritime University of Szczecin, Mechanical Faculty, Institute of Basic Technical Sciences, 51-53 Podgórna Street, 70-205 Szczecin, Poland 2 Military University of Technology, Faculty of Advanced Technology and Chemistry, 2 Kaliskiego Street, 00-908 Warsaw, Poland a r.jasionowski@am.szczecin.pl, b wojciech.polkowski@wat.edu.pl, c dzasada@wat.edu.pl Keywords: cavitation, cavitation wear, CuZn10 alloy, plastic working, recrystallization annealing Abstract.
The course of cavitation destruction depends mainly on a material structure (grain size, type of inclusions, morphology and phase distribution, etc.) but also on the load distribution, and a possible activity of chemical, electrochemical and thermal processes near cavitation bubbles.
Properties of a material subjected to the cavitation damage are strongly affected by its structure resulting from manufacturing or applied processing.
Generally, in the field of metallic materials both the structure state (grain size, crystallographic texture etc.) and metallurgical quality exhibit the greatest impact on their cavitational erosion resistance [10-12].
Results and discussion The investigated material has single-phase structure of α solid solution of zinc in copper.

However, with increasing of Ni content, the Ni-rich cathode always suffers from the structure instability, poor cycling performance.
The structure and high-rate performance of SC811 has been optimized by tuning the molar ratio of Al3+.
In Fig. 3, the XRD patterns of all the samples can be well indexed with α-NaFeO2 structure, with R3̅m space group.
The well peak splitting of (108)/(110) and (006)/(102) indicates well crystallinity of layered structure.
Mu, A review: Modification strategies of nickel-rich layer structure cathode (Ni ≥ 0.8) materials for lithium ion power batteries, Journal of Energy Chemistry, 60 (2021) 435-450

This inverse optimal model helps the enterprise node to adjust its structure and the number of resources allocation to better meet market demand and maximize the interests according to its budget.
Conclusion It is one of the hot issues that how to allocate resources structure rationally for node enterprise in manufacturing grid.
Then conclude in order to achieve the optimal result, enterprise node must adjust its own resources structure and rent resources from others.
According to the optimization solution based on inverse of the model, it gives a better way for enterprise managers to facilitate decision-making, and adjust its resource structure.
Radiation Physics and Chemistry, Volume 53, Issue 3 :263-274

X-ray diffraction investigations reveal the NaCl cubic structure of CdO quantum dots.
It clearly shows that CdO nanoparticles crystallize in rocksalt or NaCl cubic structure.
It has been established [10] that CdO nanowires prepared by electrodeposition also display NaCl cubic structure with Miller indices identical to the CdO nanocrystals (Table 1).
Hawley, The Encyclopedia of Chemistry, 3rd ed., Hawley, 1973, p. 169
Mareqio, Lattice parameter and defect structure of cadmium oxide containing foreign atoms, J.

Characterization of chemical structure and surface properties for these materials was carried out and their efficacy in the catalytic ozonation degradation of wastewater was investigated.
However, conventional biological treatments methods have been proven unsuccessful to treat the organic compounds having complicated structures [2,3].
The structure were flaky, with a pointed rod and tube as shown in Fig 2.
The reason nanorods and nanotubes films showed more excellent than nanosheets catalytic performance is given in the processof forming the their structures will produce a "self-crimping" process, so that the better catalytic activity of the nuclei along the [110] growth in the plane direction.
Journal of Solid State Chemistry 181 (2008) 1298–1306 [13] Lai Yan, Ranbo Yu, Jun Chen, and Xianran Xing.

The system of design and wiring are simple,easy extension, cost-effective, volume is small, compact structure,strong anti-interference ability.
Heating furnace is the main process equipment of metallurgical enterprise, its automatic control strategy is an important research direction in the field of process control; In the chemical chemistry to fluid temperature detection is always important,it can provides the technical personnel modification technology parameters, and improve process and product quality.
the Overall System Design Structure of the System Design.Through the keyboard input temperature, then will set temperature in memory unit and display of the cathode in seven sections LED.
System Structure.
Fig. 1 System structure the System Hardware Circuit Diagram the Main Control Circuit.

Scanning electron microscopy investigation showed that modified SLA surfaces had micro- and nano-structure surface topography.
Alkaline and heat treatment can create a hydrophilic surface and good bioactivity with nanorodlike structure[3].
The A-SLA and H-SLA surface have micro-structured and nano-structured surface topography, as revealed by Fig.1(e)-(h).
Conclusions Modified SLA titanium surface had micro- and nano-structure surface topography.
Scharnweber: Journal of Materials Chemistry Vol.18 (2008), p.2404 [2] D.

Soil Nutrient and Soil Enzyme Activity Of the Slopes with Different Ecological Protection Technologies Zichao Zhao1, a, Wennian Xu2, b, and Dong Xia1, c 1College of Chemistry & Life Science, China Three Gorges University, Hubei, Yichang, 443002, China 2Key Laboratory of Geological Hazards on Three Gorges Reservoir Area of Education, China Three Gorges University, Hubei, Yichang, 443002, China a2008zzc@163. com, bxwn@ctgu. edu. cn, cxiadongsanxia@163. com Keywords: Soil nutrient, Soil enzyme, slope, Ecological Protection Technologies.
Combined with and community structure and community characteristics of vegetation on the sanmpled slops, soil enzyme activities could be used to measure the degree of vegetation restoration in the disturbed area.
It proved that plants growing related to soil quality, soil structure, and soil nutrient, The ability of the soil supplys nutrient to plants depends not only on the potential of the process of nutrient effectively, and at the same time depends on the significantdegree of soil colloids absorption sex ions.
Slope number Community Structure Community Characteristics A Ass.
(3)Combined with and community structure and community characteristics of vegetation on the sanmpled slops, Soil enzyme activities could be used to measure the degree of vegetation restoration.

The Ga2O3 added can effectively enter into the ZnO lattice structure to form solid solution during sintering.
The crystal structure was examined using D8-Advance X-ray diffraction (XRD) and the fracture surface morphology was studied by SU-70 scanning electron microscopy (SEM).
There were only the peak shifts at ZnO which indicated that the Ga2O3 had effectively entered into the ZnO lattice structure to form solid solution after sintering at 1150℃ to 1300℃.
(2) When the sintering temperature was not too high (<1300℃), Ga did not destroy the crystal structure of ZnO, instead Ga3+ replaced Zn2+ of the crystal structure.
Pearson, Crystal Chemistry and Physics of Metals and Alloys, Wiley, New Youk,1972, p76