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Search Results: 1 - 10 of 117008 matches for " LIU Hui-Liang "
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2-(2-Hydroxyphenyl)-4,5-dimethyl-1H-imidazol-3-ium acetate monohydrate
Hui-Liang Wen,Min He,Chong-Bo Liu
Acta Crystallographica Section E , 2008, DOI: 10.1107/s1600536808028626
Abstract: In the title compound, C11H13N2O+·C2H3O2 ·H2O, the dihedral angle between the benzene ring and the imidazole ring is 7.83 (6)°. In the crystal structure, N—H...O and O—H...O hydrogen bonds form a two-dimensional network. All the methyl H atoms are disorderd over two sites with equal occupancies.
Tetrakis[μ-3-(3-pyridyl)acrylato-κ2O:O′]bis{(1,10-phenanthroline-κ2N,N′)[3-(3-pyridyl)acrylato-κ2O,O′]europium(III)} pentahydrate
Chong-Bo Liu,Hui-Liang Wen,Fang Deng,Jun-Hui Zuo
Acta Crystallographica Section E , 2008, DOI: 10.1107/s1600536807066263
Abstract: The europiumIII ion in the title compound, [Eu2(C8H6NO2)6(C12H8N2)2]·5H2O, is coordinated by seven carboxylate O atoms and two N atoms from one phenanthroline molecule. The carboxylate groups of 3-(3-pyridyl)acrylate link pairs of europium(III) ions, forming centrosymmetric dinuclear units, which further assemble into a sheet parallel to the (001) plane through hydrogen-bonding interactions involving the uncoordinated water molecules. One water molecule is disordered.
6-Bromo-3-hydroxy-4-oxo-2-phenyl-4H-chromene-8-carboxylic acid dimethylformamide disolvate
Hui-Liang Wen,Dan-Dan Chen,Chong-Bo Liu
Acta Crystallographica Section E , 2008, DOI: 10.1107/s1600536808019454
Abstract: In the title compound, C16H9BrO5·2C3H7NO, the chromene ring system is essentially planar. The two dimethylformamide solvent molecules are linked by intermolecular O—H...O hydrogen bonds to the 6-bromo-3-hydroxy-4-oxo-2-phenyl-4H-chromene-8-carboxylic acid molecules.
3,5-Dibromo-2-hydroxybenzoic acid
Chong-Bo Liu,Dan-Dan Chen,Hui-Liang Wen
Acta Crystallographica Section E , 2008, DOI: 10.1107/s1600536807062320
Abstract: The title compound, C7H4Br2O3, has an intramolecular O—H...O=C hydrogen bond and aggregates to form hydrogen-bonded dimers via O—H...O interactions. The formation of zigzag one-dimensional molecular tapes via C—H...Br interactions and π–π stacking interactions (interplanar separation = 3.42 ) completes the crystal structure.
Charged excitons in parabolic quantum-well wires under magnetic filed

Zhang Hong,Zhang Chun-Yuan,Zhang Hui-Liang,Liu Jian,

物理学报 , 2011,
Abstract: The binding energies of the charged excitons(negative X- and positive X+ excitons) are calculated using the finite-difference method within the quasi-one-dimensional effective potential model. The effects due to the magnetic filed and quantum confinements on the binding energy are analyzed, and the following results are obtained:(1) relative electron and hole harmonic oscillator confinement each have a strong effect on the stablity of charged excitons, the binding energy of X+ is not always larger than that of X-, e.g., due to the increase of the hole harmonic oscillator length, leading to the crossing of X+ and X- lines as recently observed experimentally;(2) the magnetic field leads to an increase of the binding energy, and the magnetic field dependence of the binding energy is related to the harmonic oscillator length.
Screening and Comparison on Myxospermy of 120 Species Occurring on the Junggar Desert

SONG Ming-fang,LIU Hui-liang,ZHANG Dao-yuan,DUAN Shi-min,WANG Xi-yong,

中国沙漠 , 2009,
Abstract: 用粘沙法对准噶尔荒漠22科81属120种植物进行了粘液繁殖体的甄别和粘沙能力比较试验,结果表明:①共有22种植物具有粘液现象,占总数的18.33%,集中于菊科、十字花科和车前科;②综合浇水2 mm和水浸20 min两种处理结果发现,分泌粘液粘沙后种子重量变化较大的植物有盐生车前、光苞独行菜、庭荠和栉叶蒿等,且对于大多数物种来说,水浸20 min处理时的粘沙量明显高于浇水2 mm处理时的粘沙量;③两种处理结果所得粘沙量大小排序稍有不同,进行平均后得到的顺序是:盐生车前>光苞独行菜>庭荠>栉叶蒿>独行菜>抱茎独行菜>条叶庭荠>条叶车前>小果亚麻荠>小车前>亚麻荠>全缘独行菜>毛果群心菜>播娘蒿>群心菜>四齿芥>油蒿>甘新念珠芥>大蒜芥>多型大蒜芥>棱果芥>山柳菊叶糖芥;④除群心菜、条叶车前、小车前外,其他19种植物的未粘沙种子单粒干重均小于1 mg;粘沙能力与种子单粒干重之间没有显著关系,而单粒干重<0.5 mg的种子其粘沙能力相对较强;⑤粘液繁殖体是某些荒漠植物降低位移、适应流沙或干旱环境的一种有效手段,但在粘沙能力和适应不同粘液溶出条件等方面表现出物种之间的差异性。
Variation in fruit and seed traits and seed germination among different populations of Eremosparton songoricum

LIU Hui-Liang,ZHANG Yong-Kuan,ZHANG Dao-Yuan,YIN Lin-Ke,ZHANG Yuan-Ming,

植物生态学报 , 2012,
Abstract: Aims Eremosparton songoricum is a rare and endangered endemic species in Central Asia. In China, it occurs in severely wind-eroded mobile and semi-mobile sand dunes of the Gurbantünggüt Desert. It has low fruit set, low seed set and rare seedling establishment. Our objectives were to determine the characteristics of populations, i.e., the variation of fruit or seed traits and seed germination among populations, to explain mechanisms of ecological adaptations of E. songoricum in different heterogeneous environments. Methods We determined the density and distance of plants and differences of shape, mass and proportion of multi-seed in six populations. Temperatures simulating those in the natural habitat of E. songoricum were used to determine the type of seed dormancy. Important findings The distance (F = 2.34, p = 0.03) and crown size (F = 8.49, p < 0.01) of plants were significantly different among populations and were highest in site C that was severely disturbed by humans. The distance and crown size located in the northeastern Gurbantunggut Desert with abundant soil moisture (E and F) were higher than populations located in the hinterland of desert (A, B, D) except population C. The characteristics of fruit and seed (length, width, thickness and mass of fruits and seeds) in the populations were significantly different but seed length and width were not. The majority of traits values were higher in populations E, F and C. The proportion of multi-seed per fruit was significantly different (F = 6.96, p < 0.01) and was highest in population C (32.50% ± 4.79%). Freshly matured E. songoricum seeds were dormant since germination percentages were <15% in all the tested temperature regimes in the populations. Scarified seeds germinated to a significantly higher percentage than non-scarified ones in all temperature regimes, indicating freshly matured E. songoricum seeds were physically dormant. A significantly lower germination percentage was recorded at 15/5 °C than at the higher-temperature regimes, indicating that low temperature inhibited seed germination. Large-seeded populations (C, E and F) had higher germination percentages (<70%) than small-seeded populations (A, B and D; <50%) after scarified treatments (F = 30.77, p < 0.01), indicating that seeds from all populations had physical and physiology dormancy (PY + PD). The varying degree of PY + PD of E. songoricum seeds in different populations may be an important survival strategy for E. songoricum in the heterogeneous environments in the Gurbantünggüt Desert.
Hui-Liang Zhou,Xiao-Min Zhang
Acta Crystallographica Section E , 2012, DOI: 10.1107/s1600536812014511
Abstract: The title compound, C11H13N5, is a Schiff base synthesized by the reaction of 4-amino-4H-1,2,4-triazole and 4-(dimethylamino)benzaldehyde. The dihedral angle between the benzene and triazole rings is 43.09 (11)°. The crystal structure displays weak C—H...N interactions.
Single nucleotide polymorphisms and genetic effects of CAST gene on meat quality traits in pigs

XUE Hui-Liang,XU Lai-Xiang,

生态学报 , 2008,
Abstract: CAST基因作为肉质性状的主要候选基因.以80头外来猪和190头地方猪为材料,在CAST基因内含子24上检测到两个多态性位点(A916G 和C1633G ).在916位点上,长白猪和大白猪以A基因为优势基因,其频率分别为0.88和1.00;莱芜猪,大薄莲猪,沂蒙黑猪和里岔黑猪以B基因为优势基因,其频率分别为0.93, 0.97, 0.78和0.68.在1633位点上,长白猪和大白猪以C基因为优势基因,其频率分别为0.82和0.79:莱芜猪,大薄莲猪,沂蒙黑猪和里岔黑猪以D基因为优势基因,其频率分别为1.00, 1.00, 0.88, 0.78.在试验猪种中,共检测到6种单倍型(AACC,AACD,AADD,ABCC,BBCC,BBDD).单倍型分布的多重比较结果表明,外来猪种(长白猪和大白猪)与地方猪种(莱芜猪,大薄莲猪,沂蒙黑猪和里岔黑猪)比较差异极显著(P < 0.01).固定效应模型分析结果表明,嫩度,屠宰45 min后pH值和滴水损失单倍型间差异显著(P < 0.05).最小二乘分析结果表明,外来猪种与地方猪种在嫩度,屠宰45 min后pH值和滴水损失间差异显著(P < 0.05).BBDD单倍型个体与其它单倍型个体比较,嫩度及滴水损失差异显著(P < 0.05);AADD,BBCC,BBDD单倍型个体与其它单倍型个体比较,屠宰45 min后pH值差异显著(P < 0.05).因此,在育种过程中将CAST基因应用于标记辅助选择,将有利于改善猪肉品质,加快育种进程.
Genetic polymorphisms and genetic effects of IGF2 gene in pigs

XUE Hui-Liang,XU Lai-Xiang,

遗传 , 2008,
Abstract: Single nucleotide polymorphisms of the exon7, 8, 9 of the porcine IGF2 gene were tested using PCR-SSCP. Genetic effects of the IGF2 gene on birth weight, weaning weight, six-month weight and six-month backfat thickness were analyzed. On the basis of the published DNA sequence (AY044828) of the porcine IGF2 gene, three pairs of primers were designed, and one polymorphism, three genotypes were found in the PCR product amplified with Ex8 primers. C-->T transition at 53 site of exon8 was detected by sequencing the homozygotes. The results showed that: firstly, the genotype distribution was not consistent among the different pig breeds. No significant differences (P > 0.05) were found in the genotype distribution when compared the Landrace with the Large White , the Laiwu with the Dapuliang, and the Yimeng with the Licha Black pig breeds, whereas significant differences (P lt; 0.01) were found among other tested pig breeds in the genotype distribution. Secondly, on the basis of the fixed effect model, significant differences (P lt; 0.05) were found in birth weight and six-month backfat thickness, whereas no significant differences (P > 0.05) existed in weaning weight and six-month weight. Thirdly, using least square analysis, it was shown that individuals of the BB genotype have significantly lower (P lt; 0.05) birth weight than those of AA and AB genotypes, with the order being AB > AA > BB ; Individuals of the AA genotype have significantly lower (P lt; 0.05) six-month backfat thickness than those of AB and BB genotypes, with the order being BB > AB > AA. These results suggest that IGF2 gene has significant effects on individual birth weight and backfat thickness. The IGF2 gene can be used in marker-assisted selection to accelerate the breeding progress.
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