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Li Li,Ning Xu,Aimin Wu,Hao Ling,Jian Sun,Xiaokang Shen 한국물리학회 2005 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.46 No.1
Nanocrystalline carbon nitride (CNx) thin ¯lms have been synthesized by nitrogen-plasma-assisted pulsed-laser deposition. Before depositing carbon nitride ¯lm, Ni/Co was deposited on the silicon (100) substrate acting as catalyst. The properties of the deposited ¯lms were studied by several diagnostic techniques. X-ray photoelectron spectroscopy was used for detecting the compo-sition ratio N/C in the ¯lm. From studying Raman spectra under dierent conditions we can ¯nd how glow discharge pressure aects the carbon nitride ¯lm properties. Two stages in this process and nanocrystallites of tens of nanometers embedded in the as-synthesized thin ¯lm can be seen by transmission-electron microscopy. The FTIR spectrum suggests an abundance of C-N bonds and paucity of C´N bonds, which is a favorable chance for the formation of carbon nitride crystallites. The crystalline nature of the ¯lm is detected by X-ray diraction.
Li Aimin,Long Jianjun,Tao Ganchen,Chen Yuanping,Wan Shaoyong 보안공학연구지원센터 2015 International Journal of Smart Home Vol.9 No.10
Network education is a new concept of modern information technology applied to education, which is the education of the use of network technology, according to a series of outstanding problems in the traditional basketball teaching, we discussed the application value and effect of inquiry teaching in college basketball education. The data was collected from Jiangxi Normal University; experiment object is 36 students, and we put them in the experimental group (18) and the control group (18).By using interview method and empirical analysis, the result shows that in 50 meters (F=4.227, P=0.048<0.05); standing long jump (F=5.495, P=0.025<0.05); 1000 meters (F=4.702, P=0.037<0.05); Run-up to touch high( F=6.398 P=0.016<0.05); 1 minute shot (F=9.396 P=0.004<0.01); basketball technology F=9.116 P=0.005<0.01; basketball interest (F=16.279, P=0.000<0.01); basketball theory results (F=12.066 P=0.001<0.01). Inquiry teaching method can effectively improve the normal teaching, not only promote students to actively take the basketball class, but also strengthen comprehensive physical education, as the effect is significant, so this education model is worth to promote.
Zhenyun Li,Jing Han,Ting Li,Qina Zhu,Aimin Wang,Ting Liu 한국간호과학회 2017 Asian Nursing Research Vol.11 No.3
Purpose: Self-management is critical to improve health outcomes of elderly patients with coronary heart disease (CHD). Sense of coherence (SOC) is found to be linked with self-management behaviors. However, their deeper relationship is not clear. The purposes of this study were to investigate the association between SOC and self-management behaviors among elderly CHD patients in China, and whether confrontation mediates this association. Methods: A cross-sectional design was used. A total of 275 elderly patients with CHD recruited from the cardiology department in a general hospital in North China were surveyed from October 2015 to April 2016. SOC, confrontation, and self-management behaviors were measured using the Chinese version of the SOC scale, subscale of Medical Coping Modes QuestionnairedConfrontation, and the CHD selfmanagement scale, respectively. Correlation analysis and path analysis were conducted to analyze the data. Results: The mean (±standard deviation) scores of SOC, confrontation, and self-management behaviors were 62.20 (±9.61), 19.55 (±3.15), and 76.17 (±10.63), respectively. Correlation analysis showed that SOC, confrontation, and self-management behaviors were significantly correlated with each other. Path analysis indicated that SOC exerted a direct effect on self-management behaviors, whereas could affect self-management indirectly via confrontation. Bootstrap test result showed that confrontation played a mediating role (b = .20, p < .001) in the relationship between SOC and self-management behaviors. Conclusion: SOC was related to self-management behaviors, whereas confrontation mediated the effect of SOC on self-management behaviors. In practice, the role of confrontation coping should be valued when developing strategies to strengthen SOC and to improve self-management practice among elderly CHD patients.
Hongbo Li,Xiaoyan Hui,Peng Li,Aimin Xu,Shiwu Li,Shouguang Jin,Donghai Wu 한국생물공학회 2015 Biotechnology and Bioprocess Engineering Vol.20 No.2
Insulin-like growth factor-II (IGF2) is a growth factor for the control of cell proliferation and apoptosis. To explore the clinical use of human IGF2, an efficient method for production of a large amount of active recombinant hIGF2 is necessary. Human IGF2 cDNA was cloned into pET32 vector where it is under the control of an IPTGinducible T7 promoter. High level soluble thioredoxin (Trx)- hIGF2 fusion protein was produced at room temperature following IPTG induction, amounting up to 20% of the total soluble bacterial proteins. The recombinant TrxhIGF2 fusion protein was purified to an approximate 95% purity using Ni+-NTA affinity chromatography with an overall yield of 120 mg protein per liter of bacterial culture. After cleavage of the Trx fusion fragment by recombinant enterokinase, the tag-free recombinant hIGF2 protein (rhIGF2) was purified by passage through the Ni+-NTA affinity column again. Biological activity of the purified hIGF2 was determined by its ability to support NIH/3T3 cells proliferation and to activate AKT signaling pathways. Our results demonstrate that tag-free active rhIGF2 can easily be obtained for various applications from E. coli using the procedure described in this report.
Runhua Liao,Yan Li,Zhu Wang,Yu Miao,Ke Shen,Peng Shi,Yan Ma,Wentao Li,Aimin Li 한국생물공학회 2014 Biotechnology and Bioprocess Engineering Vol.19 No.1
The treatment of high-salinity, high-nitratewastewater was investigated in a single expanded granularsludge bed reactor. Complete denitrification was achievedwhen nitrate concentration was as high as 6,000 mg N/Land the salinity of influent reached 11% NaCl at liquidup-flow velocity of 3.0 m/h, hydraulic retention time of,24 h and the C/N molar ratio of 2.0. Furthermore, 454-pyrosequencing technology was used to analyze archaeabacterial diversity under high salinity and high nitrateconditions. Results showed that the total number ofeffective sequences was 5749 consisting of 5678 bacterialsequences and 71 archaea sequences after denoising andfiltering out chimeras, which could be affiliated to 5phylogenetic groups, including Proteobacteria, Firmicutes,Euryarchaeota, Crenarchaeota and unclassified phylum. Although Proteobacteria was the dominant microbialpopulation, two archaea phylogenetic groups—Crenarchaeotaand Euryarchaeota were observed in this study.
Ning Xu,Aimin Wu,Fuming Li,Hao Lin,Jiada Wu,Peinan Wang,Yuancheng Du,Zhifeng Ying 한국물리학회 2004 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.44 No.32
CNx nanocrystals and nanotubes were synthesized on Co/Ni-covered Si(100) wafers using a nitrogen-atom-beam-assisted pulsed laser ablation deposition method. Transimission electron microscopy, X-ray photoelectron spectroscopy and Raman spectroscopy showed that nanometer-sized CNx nanocrystals and nanotubes were contained in the as-deposited lms. The co-catalyzation by the cobalt and nickel in the synthesis process is considered to play an important role in the formation of CNx nanocrystals and nanotubes. The reasons for the formation of CNx nanocrystals and nanotubes have been analyzed.
Yanxin Wei,Aimin Ding,Fabao Luo,Na Li,Chengli Yao 한국화학공학회 2020 Korean Journal of Chemical Engineering Vol.37 No.6
Polymagnesium silicate sulfate (PMSiS) was prepared by using magnesium sulfate modified polysilicic acid (PSiA). The PMSiS’s functional group and morphology were analyzed by FTIR and SEM, respectively. The coagulation performance of PMSiS and PSiA was studied and compared in terms of the Congo red (CR) dye removal efficiency. After modification, PMSiS was a complexation polymeric species with the compact rod-like structure. Compared with PSiA, PMSiS was more efficient and stable. In the process of treating simulated wastewater containing CR dye, the dye removal efficiency of PMSiS could achieve above 80% at the lower coagulant dosage of 0.4 g/L, while the dye removal efficiency of PSiA could only reach about 70% at the higher coagulant dosage of 1.2 g/L. Moreover, PMSiS had wider applicable range of dosage and temperature than PSiA at optimal conditions of pH 12 and once addition of feeding mode. Therefore, PMSiS will be a promising coagulant in the process of treating practical wastewater containing dyes.
Qianqian Shi,Aimin Li,Qing Zhou,Chendong Shuang,Yan Li,Yan Ma 한국공업화학회 2014 Journal of Industrial and Engineering Chemistry Vol.20 No.6
Carbon/iron composites were prepared from waste cation exchange resin by NaOH activation. The BETsurface areas were over 1200 m2 g-1. The presence of iron led to the formation of new mesopores andmacropores. Activation temperature had a significant impact on the pore size distributions, crystalstructures, and magnetic properties of the carbon composites, and the magnetic properties of thecomposites were related to their crystal structures. The composite synthesized at 800 8C (800ACS-1)could effectively remove diethyl phthalate, bisphenol A, and malachite green from aqueous solutions. 800ACS-1 also exhibited high stability over a wide pH range of 4–11.5.