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Liu, H.,Qing, B.,Ye, X.,Guo, M.,Li, Q.,Wu, Z.,Lee, K.,Lee, D.,Lee, K. 한국물리학회 2009 Current Applied Physics Vol.9 No.4_SUP
An organic/inorganic hybrid gel was prepared with tetraethoxysilane (TEOS) and bis(trimethoxysilylpropyl)amine (TSPA) as precursors. The adsorption of boron on the hybrid gel in aqueous solutions was investigated comprehensively by varying the initial boron concentration, pH, ionic strength, and temperature. The equilibrium adsorption amount of boron increases with the increase in initial boron concentration and ionic strength, but decreases with the increase in temperature. The adsorption amount exhibits a maximum at initial pH of 4-10. Boron appears to be adsorbed in both H<SUB>3</SUB>BO<SUB>3</SUB> and B(OH)<SUB>4</SUB><SUP>-</SUP> forms through the hydrogen bonding, electrostatic and hydrophobic attractions.
Yoon, Y.H.,Lee, S.Y.,Gwon, J.G.,Cho, H.J.,Wu, Q.,Kim, Y.H.,Lee, W.H. Elsevier 2018 CERAMICS INTERNATIONAL Vol.44 No.14
<P><B>Abstract</B></P> <P>In this paper, the synthesis of mesoporous Mo-doped titania films templated by cellulose nanocrystals (CNCs) and their photocatalytic performance are reported for the first time. The prepared titania composite precursors containing the CNCs and molybdenum chloride were spin-coated on indium tin oxide (ITO) glass substrate, followed by calcining at 400 °C for 1 h. X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), scanning electron microscope (SEM), and UV–vis spectrometer were employed to characterize the phase composition, pore structure, morphology, and optical property of the titania films in relation to CNCs templating and Mo doping. Photocatalytic performances of the titania films were also evaluated on the photodegradation of trichloroethylene under a fluorescent light source. The Mo-doped titania films with CNCs templating were highly transparent and mesoporous, exhibiting only anatase phase, high specific surface areas ranging in 135.4 – 149.0 m<SUP>2</SUP>/g, and small crystallite sizes of 9.5 – 11.1 nm. The results indicate that Mo ions were successfully doped by substituting for Ti ions in the titania lattice. The Mo doping stabilized the anatase phase and also increased the surface area of the CNCs-templated titania film while decreasing the mean pore width. Notably, the visible light absorption capacity and photocatalytic activity of the CNCs-templated titania films doped with Mo were dramatically greater than those of the pure and the CNCs-templated titania films, which is ascribed to the decreased recombination rate of photoexcited charges and the increased surface area with aids of the CNCs templating and the Mo doping.</P>
Zeng, Y.Q.,Wang, G.L.,Wang, C.F.,Wei, S.D.,Wu, Y.,Wang, L.Y.,Wang, H.,Yang, H.L. Asian Australasian Association of Animal Productio 2005 Animal Bioscience Vol.18 No.1
This study was performed to detect genetic variation of the heart fatty acid-binding protein (H-FABP) gene by PCRRFLPs approach and its association with intramuscular fat (IMF) content. Data from 223 individuals, including one Chinese native pig breed and four western pig breeds, were analyzed. The results showed that for the H-FABP gene, there was one polymorphic HinfI site in the 5'-upstream region, whereas there were one HaeIII and one HinfI (marked as $HinfI^*$) polymorphic site in the second intron, respectively. The three PCR-RFLPs were present in all breeds tested. The allele frequencies, however, revealed significant differences between them (p<0.05). Furthermore, the allele frequency distribution of HinfI in the Laiwu Black and that of $HinfI^*$ in the Hampshire breed were at disequilibrium, which might be the result of selective breeding. Results also indicated that for HinfI, HaeIII and $HinfI^*$ HFABP RFLP, significant (p<0.05) contrasts of 0.78%, -0.69% and 0.72% were detected in the least square means of IMF content between the homozygous genotype HH and hh, DD and dd, BB and bb classes, respectively. It implied that the HHddBB genotype had the highest IMF content in this experimental population and these H-FABP RFLPs could serve, to some extent, as genetic markers for use in improvement of IMF content.
Micromachined MoO3 Gas Sensor with Low Power Consumption of 0.5 Watt
장건익,Q. H. Wu,C. C. Liu 한국전기전자재료학회 2005 Transactions on Electrical and Electronic Material Vol.6 No.4
A new MoO3 based microsensor with low power consumption was presented. Typical size of sensor was 5 mm in width and 8 mm in length. As a sensitive electrode, MoO3 was successfully fabricated by IC technology on pyrex glass of 250 mm in thickness. After annealing at 550 oC for 3 hrs, the film was fully crystallized and demonstrated as pure MoO3 structure. The grain size of MoO3 was plat like and typical size was about 1mm. Based on the results of sensitivity measurement, MoO3 microsensor shows especially high selectivity to H2 reducing gas atmosphere. The applied heater power was lower than 0.5 Watt.
H.R. Wu,M.L. Wang,Q.L. Song,Y. Wu,Z.T. Xie,X.D. Gao,X.M. Ding,X.Y. Hou 한국물리학회 2007 Current Applied Physics Vol.7 No.3
In the present work, currentvoltage (IV) characteristics of fullerene devices (ITOnC60nAl) are reexamined byin situelectrical mea-surement in high vacuum and by infrared imaging analysis. Two kinds ofIV curves are detected: ‘ohmic’ and nonohmic. Degradationprocesses of the two dierent devices are measured, and ‘ohmic’ degradation processes are ascribed to short-circuiting. ITOnC60nAldevices in high vacuum are conrmed to be intrinsically nonohmic. Surface temperature distribution of the two dierent devices is mea-buers are inserted between fullerene layer and cathode and this is found to be eective.
Photocatalytic and Hydrophilic Properties of TiO₂/ Fe₂O₃ Composite Films
Q. J. Liu,Q. L,X. H. Wu,G. Q. Zhang,Z. Q. Gao,G. X. Chen 한국진공학회(ASCT) 2002 Journal of Korean Vacuum Science & Technology Vol.6 No.1
TiO₂/Fe₂O₃ composite thin films were prepared on common glass substrates by sol-gel processing and dip-drawing method. The effect of Fe₂O₃ content on the photocatalytic and hydrophilic properties of composite films was studied. The results indicate that the photocatalytic activities of composite TiO₂ films are superior to that of pure TiO₂ film, and the film containing 0.5% Fe₂O₃ has the best photocatalytic activity. The hydrophilicity is difference with variant Fe₂O₃ content, the films containing 0.05%~0.1% Fe₂O₃ have the best hydrophilicity and their contact angles are 0°.
Activation of antiferromagnetic domain switching in exchange-coupled Fe/CoO/MgO(001) systems
Li, Q.,Chen, G.,Ma, T. P.,Zhu, J.,N'Diaye, A. T.,Sun, L.,Gu, T.,Huo, Y.,Liang, J. H.,Li, R. W.,Won, C.,Ding, H. F.,Qiu, Z. Q.,Wu, Y. Z. American Physical Society 2015 Physical review. B, Condensed matter and materials Vol.91 No.13
Cluster Analysis of 12 Chinese Native Chicken Populations Using Microsatellite Markers
Chen, G.H.,Wu, X.S.,Wang, D.Q.,Qin, J.,Wu, S.L.,Zhou, Q.L.,Xie, F.,Cheng, R.,Xu, Q.,Liu, B.,Zhang, X.Y.,Olowofeso, O. Asian Australasian Association of Animal Productio 2004 Animal Bioscience Vol.17 No.8
The genomes of Chinese native chicken populations were screened using microsatellites as molecular markers. A total of, 528 individuals comprisede12 Chinese native chicken populations were typed for 7 microsatellite markers covering 5 linkage groups and genetic variations and genetic distances were also determined. In the 7 microsatellite loci, the number of alleles ranged from 2 to 7 per locus and the mean number of alleles was 4.6 per locus. By using fuzzy cluster, 12 Chinese native chicken populations were divided into three clusters. The first cluster comprised Taihe Silkies, Henan Game Chicken, Langshan Chicken, Dagu Chicken, Xiaoshan Chicken, Beijing Fatty Chicken and Luyuan Chicken. The second cluster included Chahua Chicken, Tibetan Chicken, Xianju Chicken and Baier Chicken. Gushi Chicken formed a separate cluster and demonstrated a long distance when comparing with other chicken populations.
Gao, F.,Zhao, H. X.,Yao, H. P.,Li, C. L.,Chen, H.,Wang, A. H.,Park, S. U.,Wu, Q. Springer Science + Business Media 2016 Plant cell reports Vol.35 No.6
<P>Eight R2R3 - MYB genes in tartary buckwheat were identified, and their expression patterns were comprehensively analyzed, which reveals role in plant response to abiotic stresses. The proteins of the R2R3-MYB superfamily play key roles in the growth and development processes as well as defense responses in plants. However, their characteristics and functions have not been fully investigated in tartary buckwheat (Fagopyrum tataricum), a strongly abiotic resistant coarse cereal. In this article, eight tartary buckwheat R2R3-MYB genes were isolated with full-length cDNA and DNA sequences. Phylogenetic analysis of the members of the R2R3-MYB superfamily between Arabidopsis and tartary buckwheat revealed that the assumed functions of the eight tartary buckwheat R2R3-MYB proteins are divided into five Arabidopsis functional subgroups that are involved in abiotic stress. Expression analysis during abiotic stress and exogenous phytohormone treatments identified that the eight R2R3-MYB genes responded to one or more treatments. This study is the first comprehensive analysis of the R2R3-MYB gene family in tartary buckwheat under abiotic stress.</P>