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The kinetic behaviors of ethylene homo- olymerization and ethylene / l-hexene co-polymerization , catalyzed by the metallocene catalyst PS-DVB-MC in an 0.5 L stainless steel reactor , were studied. The effects of polymerization conditions on ethylene polymerization , such as concentration of catalyst , temperature of polymerization , pressure of ethylene , molar ratio of AI / Z r , etc ., were also investigated . Some leading results were as follows : the activity of the catalyst PS–DVB- MC for ethylene homo-polymerization was high ( 1.053 x 107 gPE / mol Zr·h ), but the molar ratio of AI / Zr was low ( 350:1 ); the catalytic ability for ethyleneα-olefin ( such as l hexene etc .) co-olymerization was great , and the corresponding activity come up to a maximum of 1.753 x 107 gPE / mol Zr·h while concenlration of l-hexene was 0.080 mol / L ; the molecular weight of polyethylene was about 180,000 , meanwhile the molecular weight distribution was narrow ( 2.19 ); the bulk density of polyethylene and ethylene / l-hexene co -polymer were 0.25 and 0.34 respectively .

采用0.5L高压不锈钢反应釜，对催化剂PS–DVB-MC催化乙烯均聚和乙烯/ l-己烯共聚合的动力学行为进行了研究，详细考察了催化剂浓度、反应温度、压力、Al/ Zr比、1-己烯浓度等因素对乙烯聚合反应的影响，得到如下主要结论：催化剂PS-DVB-MC具有催化乙烯均聚的高活性(1.053×107g PE / mo1 zr.hr)，低Al / Zr比( 350：1 )；具有良好的催化乙烯与α-烯烃(如1-己烯等)共聚的能力，在1-己烯浓度为0.080 mol / L时，催化活性达到最大(1.783×107 g PE / molZr.hr)；乙烯均聚产物的分子量在18万左右，分子量分布窄( 2.19 )。

The light saturation point of sun leaves in canopy was 400 μmol photons m^(-2) s^(-1), and the maximum net photosynthetic rate was 4-6 μmol photons m^(-2) s^(-1). These data showed that C. hystrix saplings are sun plants.

结果表明：1刺栲冠层阳生叶的光饱和点为400 μmol photons m^(-2) s^(-1)，最大光合速率在4-6 μmol photons m^(-2) s^(-1)之间，说明刺栲幼树保持阳生植物的特征。

The light saturation point of sun leaves in canopy was 400 μ mol photons m-2s-1, and the maximum net photosynthetic rate was 4-6 μ mol m-2s-1. These data showed that C. hystrix saplings are sun plants.

刺栲冠层阳生叶的光饱和点为400 μ mol photons m-2s-1，最大光合速率在4-6 μ mol m-2s-1之间，说明刺栲幼树保持阳生植物的特征。

Adsorption isotherms were obtained with static adsorption method. Isosteric adsorption enthalpy, adsorption free energy and adsorption entropy were calculated according to the relationship of thermodynamic function. Isosteric adsorption enthalpy was between 29 kJ-mol"1 ~ 34 kJ'mol"1, which reveals that the main molecularly recognition interaction is hydrogen bonding.

通过静态吸附试验，测定了球状分子印迹聚合物对水溶液中茶碱的吸附等温线，利用热力学函数关系计算了球状分子印迹聚合物的等量吸附焓，吸附自由能和吸附熵，等量吸附焓在29.17 kJ·mol~(-1)～34.54 kJ·mol~(-1)之间，推测其分子识别的作用力主要为氢键作用。

The results show that the optimal value of CoCl2 concentration is 0.2 mol/L and the maximum adsorbed amount is 19.674 mg/g onto this adsorbent. The adsorption capacity of phosphine onto CoCl2-modified ACF decreases with the increase of temperatures. The maximum absorbed amounts are 19.674 mg/g at 298 K, 13.537 mg/g at 313 K and 11.087 mg/g at 328 K, respectively. It is found that the Freundlich equation is more suitable for the description of phosphine adsorption process than the Langmuir equation. The isosteric heat of adsorption decreases with the increase of the surface loading on CoCl2-modified ACF, which means that CoCl2-modified ACF adsorbent has an energetically heterogeneous surface. Meanwhile, adsorptive phosphine removal performance may be a dominant of physical adsorption when the heat of adsorption is 16-24 kJ/mol, the CoCl2-modified ACF adsorbent will be one of the candidates for tail gas purification of airtight calcium-carbide furnace and recycle of phosphine.

研究结果表明：浸渍液浓度最佳值为0.2 mol/L，此改性ACF对PH3的饱和吸附量为19.674 mg/g；PH3在CoCl2改性ACF上的吸附量随温度升高而迅速降低，在298，313和328 K时PH3的饱和吸附量分别为19.674，13.537和11.087 mg/g；Freundlich吸附等温方程较好地模拟了PH3在改性ACF上的等温吸附；PH3气体在改性ACF上的等量吸附热随吸附量的增大而减小，表明改性ACF吸附剂表面能量的不均匀性；吸附热在16~24 kJ/mol范围内，过程为物理吸附，有利于密闭电石炉尾气的净化。

These results indicated that palmatine had one common binding site on the immobilizedβ_2-AR column,the association constant was 2.93×10~4 L/mol at pH 7.2 and 25℃,while jatrorrhizine had two bingding sites,the association constants at these two sites were 1.93×10~4 and 1.56×10~5 L/mol,respectively.And the molar ratio of weak bingding sites to strong binding sites was 93:7.Palmatine and jatrorrhizine had competed for low-affinity site in immobilizedβ_2-AR.

结果表明，盐酸巴马汀与β_2-AR只有一类结合位点，在流动相pH 7.2，温度25℃时盐酸巴马汀与β_2-AR的结合常数为2.93×10~4 L/mol；盐酸药根碱与β_2-AR有两类结合位点，在这两类结合位点上的结合常数分别为1.93×10~4和1.56x10~5L/mol，两类结合位点数的比值为93：7，且盐酸巴马汀和盐酸药根碱竞争低亲和力的结合位点。

Acetaldehyde(0\^1 mol) was treated with n propylthiol(0\^1 mol) at 35 ℃ for 20 min to yiled 72% acetaldehyde propyl mercaptal .

以 0 。1 mol乙缩醛和 0 。1 mol 正丙硫醇为原料，35℃下在四氯化碳中反应，经红外光谱，色谱，质谱，元素分析以及核磁共振谱检测，确证了产物为乙醛正丙硫醇缩醛。

Results: At the concentrations of 0.1, 1 and 10 μmol/L, berberine dose-dependently suppressed the formation of TRAP-positive multinucleated cells, the TRAP activity and the osteoclastic bone resorption. The strongest inhibitory effect was exhibited at the concentration of 10 μmol/L, with the inhibiting rate of 60.45%, 42.12% and 72.69% respectively.

结果：小檗碱在0.1~10μmol/L范围内，浓度依赖性地抑制TRAP阳性多核破骨细胞的形成和TRAP活性，减少破骨性骨吸收陷窝的面积；在10μmol/L浓度下，对破骨细胞的抑制作用最强，对TRAP阳性多核破骨细胞的形成和TRAP活性的抑制率分别达到了60.45%和42.12%，骨吸收陷窝面积减少72.69%。

Results: Myricetin and quercetin other than kaempferol showed the inhibitory effects against p110β PI3K, and their IC50 was 2.93μmol/L and 9.91μmol/L, respectively.

结果：杨梅素和榭槲皮素对重组人PI3K p110β催化亚基有抑制作用，IC50分别为2.93μmol/L和9.91μmol/L，而山萘黄素对PI3K p110β催化亚基则无抑制作用。

METHODS: Cultured THP-1 monocytes were induced to macrophages by 0.1 μmol/L phorbol myristate acetate, and the differentiated THP-1 macrophages were incubated with 200 μmol/L Hcy for 24, 48 and 72 hours respectively. Then cell supernatant and lysate were collected as condition medium.

在由0.1 μmol/L 佛波脂诱导分化的THP-1单核细胞中加入200 μmol/L 的高同型半胱氨酸培养24，48，72 h，将各时间点细胞上清液及裂解液作为条件培养基，加入经地塞米松及维生素D3作用6 d 后的培养瓶中继续培养24 h。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。