膨润土基多孔材料对红色染料的脱色作用

研制成型化的膨润土基多孔粘土材料,应用于红色染液废水的脱色处理,初步探讨该多孔材料对染料阳离子红Ｘ－ＧＲＬ和直接大红ＦａＧ的脱色作用及其影响因素。结果表明,该多孔材料对染液具有良好的脱色效果,用于染料阳离子红Ｘ－ＧＲＬ的脱色可以多次再生循环使用。     

黑龙江省五大连池的水生植被

五大连池是我国第二大火山堰塞湖，湖中水生维管束植物生长繁茂，１９９３年春、夏季我们对其水生植被进行了调查，本文报道了这次调查的结果。五大连池共有水生维管束植物５４种，隶属于３８属２５科．根据植物的不同生活类型和优势种，划分为３个类型１１个群落，其中提水植物５个群落：菰群落、芦苇群落、菖蒲群落、小叶樟群落和水葱群落；浮水植物２个群落：菱群落和荇莱群落；汉水植物４个群落：眼子菜群落、金鱼藻群落、狐尾藻群落和大茨藻群落。     

江苏泥质海岸防护林土壤微生物数量分布及其类群的研究

凡营造防护林的林地，其土壤微生物的总量平均比对照滩涂高出１００余倍，比农田高出２０余倍，其中刺槐林、竹林土壤微生物总量明显高于水杉林；微生物类群以细菌为主体，放线菌为次，真菌最少（细菌在每克干土中约９００￣８０００万，放线菌为２００￣２４００万，真菌为０．８￣１．７万）；土壤微生物数量的垂直分布随着土层深度而递减，以０￣２０ｃｍ范围内居多；土壤微生物的数量春季略大于秋季。     

浅谈海相软土地基水泥搅拌桩施工技术

文章结合广珠铁路珠海段海相沉积的软土地基加固,详细阐述水泥搅拌桩工程试桩、施工工艺、施工注意事项、施工质量检验等环节的技术要求和控制措施。     

俄歇电子能谱数据采集及数据处理系统

本文主要介绍Ａｐｐｌｅ　Ⅱ微机在俄歇电子能谱数据采集及数据处理中硬件和软件的设计．本 系统软件包括数据采集、数据快速显示和分段处理、数据平滑、扣本底、谱图微分与积分等．此 外还配有一个常用的数据库．本系统的最大特点是成本低、功能强、使用简单、方便．     

基于预想故障集迭代的停电计划二次规划模型

综合停电管理是电网运行方式安排的重要工作.停电计划的优化需要考虑电网运行约束,当考虑N-1预想故障后,急剧增加了该优化问题的求解复杂度.对此,提出基于预想故障集迭代的停电计划优化方法.通过增加备选开断支路首端节点电压相角作为状态变量,将电网非线性运行约束转化为线性约束,以考虑重复停电、尽量满足初始计划、发电成本等实际工...     

一种基于小波变换方法的图像递进传送方式

研究利用小波变换方式进行图像的递进传输。方法对图像实行小波变换,然后传递变换后的小波系数,在拉发收端可根据需要对接收到的系数随时地以变换,从而得到原图像的逐级近似。     

Research on reliability index of a large communication network with domain partition and interconnection

In order to indicate the performances of a large-scale communication network with domain partition and interconnection today, a kind of reliability index weighed by normalized capacity is defined. Based on the route rules of network with domain partition and interconnection, the interconnection indexes among the nodes within the domain and among the domains are given from several aspects. It is expatiated on that the index can thoroughly represent the effect on the reliability index of the objective factor and the subjective measures of the designer, which obeys the route rules of a network with domain partition and interconnection. It is discussed that the defined index is rational and compatible with the traditional index.     

具有残差校正的n次累加灰色模型

提出一种具有残差校正的ｎ次累加灰色模型，给出了这种模型的建模机理和建模步骤，这种模型提高了ＧＭ（１，１）模型的精度，拓宽了ＧＭ（１，１）的应用范围，特别适用于数据波动“无序”，随机性强的系统的建模。文中仿真实例说明了该模型的有效性。     

Detection of dynamic brain networks modulated by acupuncture using a graph theory model

Neuroimaging studies involving acute acupuncture manipulation have already demonstrated significant modulatory effects on wide limbic/paralimbic nuclei, subcortical gray structures and the neocortical system of the brain. Due to the sustained effect of acupuncture, however, knowledge on the organization of such large-scale cortical networks behind the active needle stimulation phase is lacking. In this study, we originally adopted a network model analysis from graph theory to evaluate the functional connectivity among multiple brain regions during the post-stimulus phase. Evidence from our findings clearly supported the existence of a large organized functional connectivity network related to acupuncture function in the resting brain. More importantly, acupuncture can change such a network into a functional state underlying both pain perception and modulation, which is exhibited by significant changes in the functional connectivity of some brain regions. This analysis may help us to better understand the long-lasting effects of acupuncture on brain function, as well as the potential benefits of clinical treatments.