广西政府信息服务系统的开发

给出广西政府信息服务系统的设计思想和开发方法。该系统是在ＷｉｎｄｏｗｓＮＴＳｅｒｖｅｒ后端服务器和Ｗｉｎｄｏｗｓ前端客户机的支持下，采用客户机／服务器模式建成的。     

均匀设计的微机处理及其在浸金工艺研究中的应用

均匀设计是一种试验设计的新方法。本文用微机对均匀设计进行逐步回归分析，给出了计算程序，并在新型无毒快速浸金试剂对广西龙水金矿进行多因素多水平的黄金浸出工艺的试验中进行了具体的应用，取得了事半功倍的效果。     

《金属物理性能分析》教材初考(Ⅰ)——和编者宋学孟同志商榷

本文就《金属物理性能分析》一书(宋学孟主编,机械工业出版社,1981)有关交换能问题、铁磁金属相互组成固溶体时磁性变化规律问题、淬火后马氏体的饱和磁化强度问题陈述了不同的观点,并指出了修改的建议。     

造纸过程的多层BP前向神经网络PID控制

为了使造纸过程的输出(湿度和基重)最大限度地接近给定值,本文采用了基于多层前向网的PID控制,此控制由控制器网络NNC和辨识器网络NNI组成,采用BP算法进行PID参数的调整和被控对象的辨识,能较好地满足控制目的,并为造纸过程的控制提供另一种思路.     

WTO与中国传媒

文章就加入WTO后对中国传媒的积极和消极影响进行了剖析。     

空心莲子草对硫酸锌的生物吸附研究

研究了空心莲子草对硫酸锌的生物吸附性。发现空心莲子草对Zm^2 具有较好的吸附容量。在常温下、pH值为7时吸附效果最佳，盐度及Ca^2 、Mg^2 离子对吸附影响不大。红外光谱分析显示羟基和酰氨基是吸附的活性中心。     

高位钻场瓦斯抽采技术在高瓦斯复杂煤层回采中的应用研究

通过对李雅庄矿多个回采工作面瓦斯来源的现场测试及理论分析,得出采场围岩瓦斯涌出是导致该矿回采工作面高瓦斯的主要来源,其涌出量占到总涌出量的60%以上。针对该矿煤层顶、底板多为沙质泥岩,其孔隙、裂隙相当发育的特点。提出了高瓦斯复杂煤层回采工作面瓦斯治理新思路。即:采取了在本煤层和邻近层瓦斯抽采技术与顶板钻孔和高位钻场底板高位裂隙钻孔的瓦斯联合抽采方式,并确定了瓦斯抽采的基本参数。从该矿2-602工作面采用高位钻场14个月的瓦斯抽采效果来看,抽采率达到了60.87%,有效地降低了工作面的瓦斯涌出量,为安全高效开采高瓦斯复杂煤层提供了技术保障。     

Fe3O4@C nanoparticles as high-performance Fenton-like catalyst for dye decoloration

Water pollution has become serious environmental problem nowadays. Advanced oxidation processes(AOP) have been widely applied in water treatment.However, traditional Fenton reaction based on Fe2﹢-H2O2 system has obvious drawbacks, which limit its applications In this study, magnetic Fe3O4core-C shell nanoparticles(Fe3O4@C NPs) were prepared for the decoloration of methylene blue(MB) via the co-precipitation followed by the hydrothermal dehydrogenation of glucose. Fe3O4@C NPs showed high catalytic activity of the decoloration of MB through the decomposition of H2O2 in Fenton-like reactions. Fe3O4@C NPs had much higher activity than bare Fe3O4 cores, suggesting the coating of carbon enhanced the catalytic activity. The performance of Fe3O4@C NPs was better at lower pH and higher temperature, but was significantly inhibited in the presence of radical scavenger tertiary butanol. Fe3O4@C NPs could be magnetic separated and regenerated, and maintained with very good catalytic activity. The implication for the applications of Fe3O4@C NP-catalyzed Fenton-like reactions in water treatment was discussed.     

Melanopsin cells are the principal conduits for rod-cone input to non-image-forming vision

Rod and cone photoreceptors detect light and relay this information through a multisynaptic pathway to the brain by means of retinal ganglion cells (RGCs). These retinal outputs support not only pattern vision but also non-image-forming (NIF) functions, which include circadian photoentrainment and pupillary light reflex (PLR). In mammals, NIF functions are mediated by rods, cones and the melanopsin-containing intrinsically photosensitive retinal ganglion cells (ipRGCs). Rod-cone photoreceptors and ipRGCs are complementary in signalling light intensity for NIF functions. The ipRGCs, in addition to being directly photosensitive, also receive synaptic input from rod-cone networks. To determine how the ipRGCs relay rod-cone light information for both image-forming and non-image-forming functions, we genetically ablated ipRGCs in mice. Here we show that animals lacking ipRGCs retain pattern vision but have deficits in both PLR and circadian photoentrainment that are more extensive than those observed in melanopsin knockouts. The defects in PLR and photoentrainment resemble those observed in animals that lack phototransduction in all three photoreceptor classes. These results indicate that light signals for irradiance detection are dissociated from pattern vision at the retinal ganglion cell level, and animals that cannot detect light for NIF functions are still capable of image formation.     

曲面重建中的光栅投影式测量方法

散乱点云数据的测量是三维物体曲面重建的前提和基础。本文在深入研究了三维测量原理的基础上,提出了一种基于格雷码-相移组合编码技术的光栅投影式测量和标定方法,并针对解码过程中由于图像噪声的干扰而可能出现的错误给出了一种码值修正算法。该测量方法综合了格雷码编码简单、测量范围大、抗干扰性强以及相移法分辨率高,适合测量小范围内表面连续的物体等优点。实验结果表明,应用本文三维测量系统测得的点云数据清晰,重建模型效果逼真,具有良好的实用性和稳定性。