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刺五加果实及种子内源萌发抑制物质活性的研究
赵敏,王炎,康莉
中国中药杂志 , 2001,
Abstract: 目的:通过对刺五加果实及种子内源萌发抑制物质的研究,探讨了刺五加种子休眠的原因。方法:制备刺五加果实的各部分及种子的粗提物,并测定其活性;制备刺五加中果皮的乙醚提取液并进行纸层析,然后测定各区段的活性。结果和结论:首次证明了刺五加果实及其外果皮、中果皮、种子中均含有一定活性的内源抑制物质。外果皮、中果皮、种子中所含的内源抑制物质对白菜种子萌发的抑制活性高于对白菜幼根生长抑制活性,刺五加中果皮乙醚提取物纸层析在Rf0.l区段对白菜种子萌发和白菜幼根生长有最强抑制,刺五加果实粗提物能抑制小麦种子萌发过程中α-淀粉酶活性,且在一定浓度范围内对小麦种子萌发及幼苗生长也有明显抑制作用,随粗提物浓度增大抑制活性明显增强。刺五加果实和种子中活性较高的内源抑制物质与刺五加种子的深沉休眠特性密切相关。
负载型Mn基催化剂催化氧化甲苯的研究
Study on the Catalytic Oxidation of Toluene by Mn-Based Supported Catalysts  [PDF]
杨仲余, 潘华, 毛益萍, 王晟康, 张鼎盛, 王莉
Hans Journal of Chemical Engineering and Technology (HJCET) , 2019, DOI: 10.12677/HJCET.2019.94043
Abstract: 采用溶胶–凝胶法制备了CeO2和TiO2载体，通过浸渍法制备了Mn/CeO2和Mn/TiO2催化剂，通过催化活性评价和催化表征等方法考察了Mn/CeO2和Mn/TiO2等催化剂氧化甲苯的催化行为。研究表明：催化剂活性为Mn/CeO2 > Mn/TiO2 > TiO2 > CeO2。Mn/CeO2催化剂具有最低的起燃温度(T50 = 180℃)，其在215℃下甲苯的转化效率可稳定在80%。Mn/CeO2和Mn/TiO2等催化剂的活性与催化剂的物化结构、催化剂的活性组分有关。相较于Mn/TiO2，Mn/CeO2具有较大的孔体积和比表面积。Mn/CeO2和Mn/TiO2催化剂的活性组分皆主要为Mn3O4。相较于Mn/TiO2，Mn/CeO2催化剂表面具有较高含量的Mn2+和表面氧(Osurf)。
CeO2 and TiO2 supports were synthetized by sol-gel method, Mn/CeO2 and Mn/TiO2 catalysts were prepared by impregnation method. The catalytic behaviors of Mn/CeO2 and Mn/TiO2 for oxidation of toluene were investigated by catalytic activity evaluation and catalyst characterization. The results show that the activities of catalysts decrease in order of Mn/CeO2 > Mn/TiO2 > TiO2 > CeO2. Mn/CeO2 catalyst has the lowest light-off temperature (T50 = 180？C); the conversion of toluene can reach 80% at 215？C. The activity of Mn/CeO2, Mn/CeO2 and other catalysts is related to the physical and chemical structure and the active component of the catalyst. Compared with Mn/TiO2, Mn/CeO2 has higher pore volume and specific surface area compared with Mn/CeO2. The active component of both Mn/CeO2 and Mn/TiO2 is Mn3O4. Compared with Mn/TiO2, Mn/CeO2 catalyst has a higher concentration of Mn2+ and Osurf.
中扬子地台早奥陶纪和华南盆地泥盆纪生物礁的纵向对比
The Vertical Comparison between the Early Ordovician Reefs in Middle Yangtze Platform and the Devonian Reefs in South China Basin  [PDF]
汪严, 肖传桃, 刘磊, 刘宇航, 王康莉, 葛婧艳
Advances in Geosciences (AG) , 2016, DOI: 10.12677/AG.2016.64030
Abstract: 从上个世纪初以来，生物礁因为其是油气储存得天独厚的场所而不断得到研究者的重视，因此从刚开始的生物礁的定义、分类以及控制因素到后来的时空分布关系等方面均有不少成果问世。由于生物礁特殊的生存环境(适宜的温度、充足的阳光、纯净的水质)；故同一地区在不同地质时期因为所发生的构造运动不同，导致环境改变，从而造成生物礁的种类和数量有很大的区别。本文主要是从生物礁的基本概况(包括主要造礁生物和附礁生物特征)、沉积地质条件(大地构造条件和岩相古地理条件)，生物礁的主控因素(古气候、古环境、海平面等)、找油意义这几个方面来对中扬子地台早奥陶纪和华南盆地泥盆纪生物礁进行纵向对比，揭示了这两个时期生物礁发育的差异性和相似性特点。
Since the beginning of the last century, reefs are paid for increasing attention by researchers as it owns unique advantages of storing oil and gas. And there are a lot of achievements in the definition, classification and control factors of reefs at first and its spatial and temporal distribution later. Considering the special living environment, like the optimum temperature, the opulent sunshine and pure water, the same area will have a big difference in the types and quantity of reefs that is caused by occurred tectonic movement which causes the change of environment. This thesis conducts comparison between the Early Ordovician reefs in Middle Yangtze Platform and the Devonian reefs in South China Basin vertically from the basic introduction, including the feature of reef-forming organisms and reef-inserted organisms, deposit geological condition, including geotectonic conditions and lithofacies palaeogeography conditions, the key control factors of organic reef containing the paleoclimate, the paleoenvironment, the sea level and the meaning of exploration of oil, which reveals the differences and similarities of reefs development in these two periods.
手机的订单预测模型
Mobile Phone Order Prediction Model  [PDF]
盛阳, 李贵灏, 韩康, 周佳明, 蒋雨龙, 王莉
Advances in Applied Mathematics (AAM) , 2020, DOI: 10.12677/AAM.2020.99179
Abstract:
本文根据所给的数据，对某手机最新一代产品预测不同销售区域未来1至20周的订单量。A类订单：中间商与销售商之间的订单；B类订单：生产商与销售商之间的订单；C类订单：中间商与销售商之间的订单。本文预测的是销售商的订单量即A + B类订单量和生产商的订单量即B + C类订单。
Based on the data given, this paper predicts the order volume of different sales regions in the next 1 to 20 weeks for the latest generation of mobile phone products. A Order: orders between middlemen and sellers; B Order: orders between manufacturer and seller; C Order: orders between middlemen and sellers. This paper predicts the order volume of the seller, that is, A + B Order and the order volume of the manufacturer, that is, B + C Order.
氨催化还原NOx中TiO2负载过渡金属催化剂的催化行为
Catalytic Performance of TiO2 Support of Transition Metal Catalysts for NO Reduction by Ammonia  [PDF]
骆迪迪, 潘华, 蓝宁, 陈郑辉, 王晟康, 吴谦, 陈雪松, 王莉
Hans Journal of Chemical Engineering and Technology (HJCET) , 2019, DOI: 10.12677/HJCET.2019.93039
Abstract: 采用溶胶–凝胶法合成了TiO2催化剂载体，并通过浸渍法制备了一系列TiO2负载过渡金属脱硝催化剂。结合N2吸脱附、X射线衍射(XRD)和X射线光电子能谱(XPS)等手段，及催化活性评价研究了过渡金属/TiO2催化剂在氨选择催化还原NOx(NH3-SCR)中的催化行为。研究表明：过渡金属/TiO2催化剂活性为Mn/TiO2 > Fe/TiO2 > Cr/TiO2 > Co/TiO2。Mn/TiO2催化剂的脱硝活性最好，在250℃时最大脱硝效率达到93%。过渡金属/TiO2催化剂的脱硝活性与催化剂的比表面积和孔体积成正相关性。催化剂的活性组分是决定催化剂活性的主要因素，Mn/TiO2、Co/TiO2、Cr/TiO2和Fe/TiO2催化剂中活性组分分别为Mn4+、Co3O4、Cr3+和Fe3+。合适的氧活性物种比值(Olatt/Osurf = 4.7)和高活性的 Mn4+活性位使得Mn/TiO2催化剂具有高催化活性。
Support TiO2 was synthesized by sol-gel method, and a series of transition metal/TiO2 catalysts were prepared by impregnation method. Combination of N2 adsorption-desorption, X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) and catalytic behavior of NO reduction with NH3 on transition metal/TiO2 catalysts were carried out by activity test. The results show that the activities of transition metal/TiO2 catalyst decrease in the order of Mn/TiO2 > Fe/TiO2 > Cr/TiO2 > Co/TiO2. Mn/TiO2 catalyst exhibits the highest activity among various catalysts, and the maximum de-NOx efficiency can reach 93% at 250？C. The deNOx activity of transition metal/TiO2 catalysts is positively correlated with the specific surface area and pore volume of the catalysts. The active component of the catalysts is the determining factor for the activity of the catalysts. The active sites of Mn/TiO2, Co/TiO2, Cr/TiO2 and Fe/TiO2 catalysts are Mn4+, Co3O4, Cr3+ and FeCr3+, respectively. A suitable ratio of oxygen active species (Olatt/Osurf = 4.7) and active sites of Mn4+ make the high activity of Mn/TiO2 catalyst.
MSMPR连续结晶器的多定态
尹秋响,王静康,王永莉
化工学报 , 1997,
Abstract: 对混合悬浮混合排料(MSMPR)连续结晶器的定态方程组进行了剖析,应用非线性方程组的延拓求解法,求得了定态方程组的分岔图,即MSMPR连续结晶器状态参数与操作参数的依赖关系.利用分岔理论对MSMPR连续结晶过程的定态数目及相应的参数范围进行了预测,导出了连续结晶过程存在多定态或唯一定态的判据。该判据仅与过程的动力学参数和操作参数有关,而与过程的状态参数无关。最后应用Routh-Hurwitz准则,确定了连续结晶过程各定态的稳定性。
青霉素亚砜结晶生长与成核动力学
井丁丁,张美景,王永莉,王静康
化工学报 , 2014, DOI: 10.3969/j.issn.0438-1157.2014.01.023
Abstract: 利用Mydlarz和Jones模型（MJ2），对乙酸丁酯中青霉素亚砜的成核与生长动力学进行研究。通过矩量法对MJ2模型进行处理后，利用晶体产品的粒度分布计算得到青霉素亚砜的生长速率与成核速率，然后利用最小二乘法拟合回归求解出成核与生长动力学方程参数。通过实验设计考察了过饱和度、温度与搅拌速度对青霉素亚砜晶体成核和生长过程的影响。研究表明青霉素亚砜晶体生长速率随过饱和度比的增加呈现指数型增长，确定青霉素亚砜晶体生长属于晶体表面生长控制过程。由于高速搅拌会增加青霉素亚砜晶体的破碎，促进了二次成核过程，随着搅拌速度的增加，晶体生长速率出现小幅下滑，而成核速率则明显升高。青霉素亚砜成核与生长动力学研究将有助于工业生产过程优化。
基于混合分数布朗运动下带跳的两值期权定价
Binary Option Pricing with Jump Based on Mixed Fractional Brownian Motion  [PDF]
康莉, 陈爽
Advances in Applied Mathematics (AAM) , 2019, DOI: 10.12677/AAM.2019.85099
Abstract:
本文研究了股票价格服从混合分数布朗运动模型下带跳过程的两值期权的定价问题。首先通过热传导方程理论得到了两值期权的定价公式，随后用保险精算方法得到了两值期权的级数解公式，然后应用蒙特卡洛模拟的方法和有限差分方法得到数值解。以热传导方程得到的定价公式作为标准，将其余三种方法得到的期权价格与定价公式解进行比较，通过比较的结果，得出了这种级数解和数值方法的可行性和有效性。
In this paper, we study the pricing problem of binary options in which stock price obeys the mixed fraction Brownian motion model with jump. First, the pricing formula of binary options is obtained through the heat conduction equation theory, and then the series solution formula of binary options is obtained by the insurance actuarial method. Then, the numerical solution is obtained by means of Monte Carlo simulation and finite difference method. Using the pricing formula obtained by the heat conduction equation as the standard, the options price obtained by the other three methods is compared with the pricing formula solution, and the results are compared. The feasibility and validity of this method are obtained.
铜片上水热法制备纳米Cu2S薄膜及光吸收性能
Characterization and Optical Absorption Property of Cu2S Nano-Films Prepared by Hydrothermal Method on Cu Foil  [PDF]
张朔, 刘劲松, 李子全, 陈建康, 丛孟启, 许奇, 丁滔, 王春花, 高雪琴, 王莉萍
Hans Journal of Nanotechnology (NAT) , 2012, DOI: 10.12677/nat.2012.21002
Abstract:
采用水热法以硫代乙酰胺为硫源在铜片上沉积了Cu2S纳米薄膜，研究了添加剂种类对产物结构、形貌及紫外–可见光吸收性能的影响。X射线衍射仪(XRD)、场发射扫描电镜(FE-SEM)和红外光谱(IR)测试表明，产物为正交结构Cu2S，添加剂影响着产物的结晶及形貌。机理分析显示，在水热条件下添加剂以不同的方式参与了薄膜的形成过程。紫外–可见(UV-vis)光吸收性能测试及直接带隙计算表明，与Cu2S本体相比，所得薄膜带隙出现了不同程度的蓝移，这归因于样品的量子限制效应影响大于库仑项的影响。
Cu2S nano-films were synthesized on copper foil with TAA as sulfur sources by hydrothermal method. The effect of the different additions on structures, morphology and UV-vis absorption property of the films has been studied by X-Ray Diffraction (XRD), Scanning Electron Microscope (FESEM) and Infrared (IR) spectra and UV-vis absorption spectroscopy. The results show that the crystallinity and morphology of the Cu2S with orthogonal structure depended on the additions. The formation of the films was thought to come from the interaction between the additions and the reactants under the hydrothermal conditions. The UV-vis absorption spectra and the (αhν)2-hν curves suggest that the calculated band gap values indicated the distinct blue shift compared to that of the bulk Cu2S, which is attributed to the stronger quantum confinement effects than the Coulomb term.
He离子辐照金属钨引入缺陷的微结构研究
Study on Microstructure of He+-irradiation Induced Defects in Tungsten
王康,刘莉,邓爱红,王,玲,王,勇,卢晓波,龚,敏
- , 2016,
Abstract: 采用能量为100keV的He离子在室温下辐照金属钨，辐照注量范围为1.4×1017-3.5×1017/cm2，辐照后对样品进行了1100℃退火处理。利用X射线衍射、慢正电子多普勒展宽和扫描电镜技术研究了钨中He离子辐照引入的缺陷和注量之间的关系。研究结果表明辐照并退火后材料内部晶面间距增大,空位型缺陷浓度或尺寸随辐照注量的升高而增大，而高注量辐照的样品表面晶粒间连接疏松并存在孔隙，钨表层可能生成了大尺寸的He空位复合体或He泡。
The samples of tungsten were irradiated by 100keV helium ions at room temperature with different fluences ranging from 1.4×1017-3.5×1017/cm2 and then annealed at 1100℃. The interaction of helium-related defects with helium fluence was studied by means of X-ray diffraction (XRD), slow positron beam analysis (SPBA) and scanning electron microscope (SEM). The results show that the distance of crystal plane in tungsten increase after implantation. The concentration or/and size of the formed open-volume defects increase with the increase of irradiation fluence. The intergranular loose connections and voids on the surface of the sample, which were irradiated by the highest fluence of ions, reveal that there are vacancy-helium complexes or He bubbles with big size in the sample
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