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OALib Journal期刊

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Synthesis and Characterization of ZnTe Hierarchical Nanostructures
Baohua Zhang,Fuqiang Guo,Wei Wang
Journal of Nanomaterials , 2012, DOI: 10.1155/2012/293041
Abstract: Single-crystalline ZnTe hierarchical nanostructures have been successfully synthesized by a simple thermal evaporation technology. The as-prepared products were characterized with X-ray diffraction (XRD), scanning electron microcopy (SEM), transmission electron microscope (TEM), and photoluminescence spectrum (PL). These results showed that the ZnTe hierarchical nanostructures consisted of nanowires and nanolumps. The room temperature PL spectrum exhibited a pure green luminescence centered at 545nm. The growth mechanism of hierarchical nanostructure was also discussed.
Survival rate of initial azimuthal anisotropy in a multi-phase transport model
Liang Zhang,Feng Liu,Fuqiang Wang
Physics , 2015, DOI: 10.1103/PhysRevC.92.054906
Abstract: We investigate the survival rate of an initial momentum anisotropy (${v}_2^{ini}$), not spatial anisotropy, to the final state in a multi-phase transport (AMPT) model in Au+Au collisions at $\sqrt{s_{NN}}$=200~GeV. It is found that both the final-state parton and charged hadron $v_2$ show a linear dependence versus $v_2^{ini}\{\rm PP\}$ with respect to the participant plane (PP). It is found that the slope of this linear dependence (referred to as the survive rate) increases with transverse momentum ($p_T$), reaching~$\sim$100\% at $p_T$$\sim$2.5 GeV/c for both parton and charged hadron. The survival rate decreases with collision centrality and energy, indicating decreasing survival rate with increasing interactions. It is further found that a $v_2^{ini}\{\rm Rnd\}$ with respect to a random direction does not survive in $v_2\{\rm PP\}$ but in the two-particle cumulant $v_2\{2\}$. The dependence of $v_2\{2\}$ on $v_2^{ini}\{\rm Rnd\}$ is quadratic rather than linear.
The Design of Surface Acoustic Wave Receiving Circuit Based on Piezoelectric Transducer  [PDF]
Hao Jiang, Fuqiang Zhang, Zhao Guan
Open Access Library Journal (OALib Journal) , 2018, DOI: 10.4236/oalib.1104829
Abstract:
A type of Surface Acoustic Wave (SAW) receiving circuit with high stability is introduced in this paper on the basis of analyzing common surface acoustic wave receiving circuits. The circuit design is based on receiving transducer and the center frequency is 1 MHz. This circuit includes pre-amplification electric circuit with high input impedance, automatic gain amplifying circuit based on VCA810, tertiary amplifying circuit, filter circuit and automatic voltage com-parison circuit. Receiving gate is used to preventing transmission pulse inter-feres the receipt signal. For better detecting the arrival time of receipt signal, voltage comparing circuit is served as examining the receipt signal, and meas-urement accuracy of acoustic transit time is improved substantially. By con-trast, amplification in three levels improves the circuit’s working stability. In addition, the circuit has the advantage of simple structure, signal stability and low manufacturing cost.
Structures and stability of (HAlNH n (n=1–15)
Haishun Wu,Congjie Zhang,Xiaohong Xu,Fuqiang Zhang,Qianer Zhang
Chinese Science Bulletin , 2001, DOI: 10.1007/BF02900569
Abstract: The geometries, electronic states, vibrational spectra and thermodynamic properties for (HAINH) n clusters withn=1–15 have been investigated using theab initio DFT/B3LYP method with basis sets 6-31G* and their ground state structures obtained. Comparison of the (HAlNH) n with (AlN) n clusters shows that the skeletons of (HAlNH) n consist of four-membered and six-membered rings made of Al-N bonds, and either Al or N atom forms four bonds in which three ones are Al-N bonds and the rest is Al-H or N-H bond. The number of Al-N bonds of (HAlNH) n is equal to that of (AlN) n . The magic number regularity of (HAlNH) n isn=2, 4, 6, 8, etc., all of which are even numbers.
Meta-analyses of nine polymorphisms of six genes with the risk of schizophrenia  [PDF]
Xuting Xu, Lingyan Wang, Qi Liao, Leiting Xu, Yi Huang, Fuqiang Zhang, Jia Cheng, Meng Ye, Shugui Gao, Shiwei Duan
Advances in Bioscience and Biotechnology (ABB) , 2014, DOI: 10.4236/abb.2014.52012
Abstract:

The aim of this study was to determine whether 9 genetic polymorphisms confered susceptibility to schizophrenia (SCZ). The authors conducted meta-analyses on associations between SCZ and 9 variants of 6 genes including PIK3C3 (432C > T), ABCB1 (C3435T and G2677T), CTLA4 (+49A/G), OLIG2 (rs762178), GAD1 (rs1978340, rs3749034 and rs769395), and GRIN1 (G1001C). A total of 34 case-control studies were involved in our meta-analyses. Our results showed no significant association between all the loci and SCZ. This meta-analysis confirmed a lack of association of SCZ for 9 genetic polymorphisms including GRIN1 G1001C, ABCB1 C3435T and G2677T, CTLA4 + 49A/G, OLIG2 rs762178, GAD1 gene rs1978340, rs3749034 and rs769395, and PIK3C3 432C > T.

Heavy metals contents in soil profiles of typical agricultural lands in Yixing, Jiangsu Province, China
Zhou ShengLu,Liao FuQiang,Wu ShaoHua,Zhang HongFu,Ren Kui
Chinese Science Bulletin , 2008, DOI: 10.1007/s11434-008-5008-5
Abstract: The effect of land use pattern on the heavy metals (HMs) distribution in soil profiles was investigated in Yixing City, China, for the four typical types of land utilization, i.e. vegetable fields on the plain, paddy fields, tea gardens on hilly lands and bamboo groves. The variance of HMs concentration in the depth of 0–15 cm, 15–30 cm, 30–60 cm of soil profiles was compared among the different tillage ages. Results showed there was a notable accumulation of Cd, Hg, Cu, Pb, Zn and Cr in the soil profiles of vegetable fields and paddy fields causing a pollution of Cu, Hg and Cd in some profiles, while no remarkable accumulation of HMs in the soil profiles of the tea gardens and bamboo groves was found. The accumulation extent of HMs in the soil profiles of the four kinds of land use followed a sequence of vegetable fields>paddy fields>tea gardens>bamboo groves. The accumulation of HMs was mainly due to the industry, transportation, other urban human activities, and intensive use of fertilizers and pesticides. The downward leaching of HMs was relatively remarkable in the soil profiles of vegetable fields. There was an accumulation in surface and subsurface layers for Cd, Hg, Pb, Zn in the soil profiles of paddy fields and tea gardens, and for Cd, Hg in those of bamboo groves. Serious pollution effects of Hg, Pb, and Zn have been shown in the soil of vegetable fields. All the four kinds of agricultural land are basically free from the pollution of the external sources of As and Ni. With the increase of tillage time, the soil of vegetable and paddy fields will face the potential risk of HMs pollution, which mainly comes from Hg, Cd and Cu, whereas that of tea gardens and bamboo groves faces a relatively small risk.
Structure and stability of boron nitride cages
Haishun Wu,Xiaohong Xu,Haijun Jiao,Fuqiang Zhang,Jianfeng Jia
Chinese Science Bulletin , 2003, DOI: 10.1007/BF03185761
Abstract: The structure and energy of boron nitrides (BN)n (n = 10 41), have been investigated theoretically. The most stable cages have been constructed on the basis of a simple design principle, and the predicated stability has been validated at the B3LYP/6-31G* level of theory. Among these, the Th, symmetrical (BN)12 cluster has been confirmed to be the most stable cage on the basis of the calculated disproportation energy and binding energy per BN unit.
6-Chloro-N-methyl-5-nitro-N-phenylpyrimidin-4-amine
Fuqiang Shi,Li-Hong Zhu,Li Mu,Long Zhang
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811037664
Abstract: In the title compound, C11H9ClN4O2, the dihedral angle between the aromatic rings is 79.67 (8)°. π–π stacking between centrosymmetrically related pairs of pyrimidine rings occurs along [100] [centroid–centroid separations = 3.4572 (8) and 3.5433 (7) ].
N4,N6-Dimethyl-N4,N6-diphenylpyrimidine-4,5,6-triamine
Fuqiang Shi,Li-Hong Zhu,Li Mu,Long Zhang
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811046642
Abstract: In the title compound, C18H19N5, the pyrimidine ring makes dihedral angles of 56.49 (9) and 70.88 (9)° with the phenyl rings. The dihedral angle between the two phenyl rings is 72.45 (9)°. No significant intermolecular interactions are observed in the crystal structure.
Chemical proteomics: terra incognita for novel drug target profiling
Fuqiang Huang,Boya Zhang,Shengtao Zhou,Xia Zhao
Chinese Journal of Cancer , 2012, DOI: 10.5732/cjc.011.10377
Abstract: The growing demand for new therapeutic strategies in the medical and pharmaceutic fields has resulted in a pressing need for novel druggable targets. Paradoxically, however, the targets of certain drugs that are already widely used in clinical practice have largely not been annotated. Because the pharmacologic effects of a drug can only be appreciated when its interactions with cellular components are clearly delineated, an integrated deconvolution of drug-target interactions for each drug is necessary. The emerging field of chemical proteomics represents a powerful mass spectrometry (MS)-based affinity chromatography approach for identifying proteome-wide small molecule-protein interactions and mapping these interactions to signaling and metabolic pathways. This technique could comprehensively characterize drug targets, profile the toxicity of known drugs, and identify possible off-target activities. With the use of this technique, candidate drug molecules could be optimized, and predictable side effects might consequently be avoided. Herein, we provide a holistic overview of the major chemical proteomic approaches and highlight recent advances in this area as well as its potential applications in drug discovery.
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