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Search Results: 1 - 10 of 145434 matches for " Hai-liang Wang "
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Crystal structure and hydrogen storage properties of (La,Ce)Ni5?xMx (M = Al, Fe, or Co) alloys
Wan-liang Mi,Zhao-sen Liu,Toru Kimura,Atsunori Kamegawa,Hai-liang Wang
- , 2019, DOI: https://doi.org/10.1007/s12613-019-1714-z
Abstract: The effects of partial substitution of La by Ce and Ni by Al, Fe, or Co in LaNi5-based alloys on hydrogen storage performance were systematically studied. All samples were prepared using vacuum arc melting in an argon atmosphere. The results showed that for La-Ni5?xMx (M = Al, Fe, or Co) alloys, the lattice constants and unit cell volumes increased with an increasing amount of Al and Fe. On the other hand, these parameters decreased upon partial substitution of La by Ce. In addition, the lattice constant remained almost constant in the La0.6Ce0.4Ni5–xCox alloys regardless of the value of x (x = 0.3, 0.6, or 0.9), as Ce might enhance the homogeneity of the CaCu5-type phase in Co-containing alloys. The hydrogen storage properties of the alloys were investigated using pressure, composition, and temperature isotherms. The experimental results showed that the plateau pressure decreased with an increasing content of Al, Fe, or Co, but it increased with Ce addition. Furthermore, the plateau pressures of all Co-containing alloys were almost identical upon substitution with Ce. Finally, the enthalpy (ΔH) and entropy (ΔS) values for all alloys were calculated using van’t Hoff plots. The relationship between the lattice parameters and enthalpy changes for hydrogenation will be discussed.
Yin-jun Zhang,Dong Wang,Hai-Liang Zhang,Yu-Guang Wang
Acta Crystallographica Section E , 2012, DOI: 10.1107/s160053681200596x
Abstract: The title compound, C13H11IN2, crystallizes with two independent molecules (A and B) in the asymmetric unit. The two aromatic rings are inclined to one another by 73.3 (2)° in molecule A, and by 74.4 (1)° in molecule B. In molecule A, the iodophenyl and the phenyl rings are inlclined to the N=C—N plane by 88.0 (4) and 19.0 (4)°, respectively. In molecule B the corresponding angles are 85.0 (4) and 20.7 (4)°, respectively. In the crystal, the two molecules are not parallel but have a dihedral angle between the iodophenyl rings of 8.6 (1)°, and 44.5 (2)° between the phenyl rings. The A and B molecules are linked vvia N—H...N hydrogen bonds to form –A–B–A–B– chains propagating along direction [100].
Peng-Gang Liu,Xiao-Ning Wang,Yong-An Yang,Hai-Liang Zhu
Acta Crystallographica Section E , 2012, DOI: 10.1107/s1600536812006228
Abstract: The asymmetric unit of the title compound, C20H16ClN3S, contains two independent molecules, A and B. In molecule A, the dihedral angles between the central benzene ring and the pendant chlorobenzene and phenyl rings are 6.37 (15) and 64.79 (15)°, respectively. The corresponding values in molecule B are 28.21 (14) and 82.11 (16)°, respectively. Each molecule features an intramolecular N—H...N hydrogen bond, which generates an S(5) ring. In the crystal, molecules A and B form dimers, being linked by two N—H...S hydrogen bonds with graph-set notation R22(8).
Peng-Gang Liu,Xiao-Ning Wang,Yong-An Yang,Hai-Liang Zhu
Acta Crystallographica Section E , 2012, DOI: 10.1107/s1600536812005727
Abstract: The title compound, C10H11I2NO, was prepared by the reaction of 3,5-diiodosalicylaldehyde with propylamine in ethanol. The molecule adopts an E conformation with respect to the C=N bond and the aromatic ring. The aromatic ring and the imino unit are close to being coplanar, with a dihedral angle of 2.6 (3)° between their planes. This planarity is assisted by the formation of an intramolecular O—H...O hydrogen bond.
(E)-Ethyl 3-(2-fluoroanilino)-2-(4-methoxyphenyl)acrylate
Yi Zheng,Zhu-Ping Xiao,Kai-Rui Wang,Hai-Liang Zhu
Acta Crystallographica Section E , 2008, DOI: 10.1107/s160053680800175x
Abstract: The title compound, C18H18FNO3, consists of three individually planar subunits, namely two substituted benzene rings and one aminoacrylate group. The dihedral angle between the two benzene rings is 47.48 (8)°. The aminoacrylate group forms dihedral angles of 57.95 (7) and 11.27 (6)° with the methoxyphenyl and fluorophenyl rings, respectively.
First principle study on the elastic and thermodynamic properties of TiB2 crystal under high temperature

Wang Chun-Lei,Yu Ben-Hai,Huo Hai-Liang,Chen Dong,Sun Hai-Bin,

中国物理 B , 2009,
Anti-Inflammatory and Analgesic Activity of Total Flavone of Cunninghamia lanceolata
Hai-Liang Xin,Xiao-Feng Zhai,Xu Zheng,Lei Zhang,Yu-Liang Wang,Zhuo Wang
Molecules , 2012, DOI: 10.3390/molecules17088842
Abstract: The present study was undertaken to investigate the anti-inflammatory and analgesic activity of total flavone of branches and leaves of Cunninghamia lanceolata (TFC) to provide a scientific basis for its clinical use and resource development. TFC was evaluated for anti-inflammatory and analgesic activity in mice or rats using chemical and thermal models of nociception, including acetic acid-induced writhing test, hot plate latency test, formalin test and carrageenan induced paw oedema test. Results showed that TFC given orally can significantly attenuate acetic acid-induced writhing in mice in a dose-dependent manner. In the hot plate latency test, TFC showed common activity in prolonging duration time only at the highest dose (400 mg/kg). Each dose of TFC could not significantly inhibit the first phase but was active in the later phase of formalin-induced pain, whereas morphine showed notable activity in the two phases. In the carrageenan-induced paw oedema model, TFC could significantly and dose-dependently reduce the carrageenan-induced paw edema at the third and fifth hour, and decrease the content of PEG2 in paw edema tissue and that of COX-2 in blood serum. It may be concluded that TFC showed both anti-inflammatory and analgesic effects, showing that it can be of importance in drug development, especially in the field of pain and inflammation.
Water Footprint--An Application in Water Resources Research

MA Jing,WANG Dang-xian,LAI Hai-liang,WANG Yin,MA Jing,WANG Dang-xian,LAI Hai-liang,WANG Yin,MA Jing,WANG Dang-xian,LAI Hai-liang,WANG Yin,

资源科学 , 2005,
Abstract: 水足迹和虚拟水是目前国际水资源领域研究的热点问题.本文借助水足迹和虚拟水的概念,计算了我国及各区域主要农产品的虚拟水含量,通过分析区域的农产品生产和消费关系,计算了我国国际和国内区域间的虚拟水流量,以及相应的水足迹和水的自给率,并进行了相关分析.计算结果表明中国是一个水资源高度自给的国家,但区域间差别较大.绿色水在我国国内总用水中占具了较大份额,对于我国农业生产意义重大.北方地区通过农产品贸易1999年向南方地区输出的虚拟水达到520×108m3,对于保障我国的粮食安全发挥了不可替代的作用.本文同时认为,人的消费模式,特别是膳食结构对水资源消耗的影响非常显著,我国人均水足迹的计算结果与这一结论基本吻合,因此倡导节约的消费方式,研究并推荐符合中国国情的膳食结构,将有助于全面节水型社会的建设.
Landscape pattern MACRS analysis and the optimal utilization of Shiyang River Basin based on RS and GIS approach

Wei Wei,Jun Zhao,Xu-feng Wang,Zhao-ye Zhou,Hai-liang Li,

生态学报 , 2009,
New Feature Extraction Method of Face Recognition

FENG Hai-liang,WANG li,LI Jian-wei,

计算机科学 , 2009,
Abstract: Feature extraction is a crucial step for pattern recognition.A nonlinear extraction method was proposed.The objective function of the proposed method was formed by combining the ideas of locally tangent space alignment(LTSA) and linear discriminant analysis(LDA).Optimizing the objective function in a kernel feature space,nonlinear features can be extracted.A major advantage of the proposed method is that it makes full use of both the nonlinear structure and class-specific information of the training data.Ex...
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