铁法煤田晓南井田构造分析

本文在煤层对比的基础上,统计了断层两盘的对应岩层厚度,并以此为基础分析了煤盆地的成因及构造形态.作者提出用断层的同沉积指数分析同沉积断层的相对活动时期、相对静止间期及其每次的活动强度.对断隐盆地的一些典型特特做了较为详细的描述,对其成因做了探讨,同时进行了构造预测和含煤性预测.     

Single-trial decoding of imagined grip force parameters involving the right or left hand based on movement-related cortical potentials

Time–domain feature representation for imagined grip force movement-related cortical potentials(MRCP)of the right or left hand and the decoding of imagined grip force parameters based on electroencephalogram(EEG)activity recorded during a single trial were here investigated.EEG signals were acquired from eleven healthy subjects during four different imagined tasks performed with the right or left hand.Subjects were instructed to execute imagined grip movement at two different levels of force.Each task was executed 60 times in random order.The imagined grip force MRCP of the right or left hand was analyzed by superposition and averaging technology,a single-trial extraction method,analysis of variance(ANOVA),and multiple comparisons.Significantly different features were observed among different imagined grip force tasks.These differences were used to decode imagined grip force parameters using Fisher linear discrimination analysis based on kernel function(k-FLDA)and support vector machine(SVM).Under the proposed experimental paradigm,the study showed that MRCP may characterize the dynamic processing that takes place in the brain during the planning,execution,and precision of a given imagined grip force task.This means that features related to MRCP can be used to decode imagined grip force parameters based on EEG.ANOVA and multiple comparisons of time–domain features for MRCP showed that movement-monitoring potentials(MMP)and specific interval(0–150 ms)average potentials to be significantly different among 4 different imagined grip force tasks.The minimum peak negativity differed significantly between high and low amplitude grip force.Identification of the 4different imagined grip force tasks based on MMP was performed using k-FLDA and SVM,and the average misclassification rates of 27%±5%and 24%±4%across 11 subjects were achieved respectively.The minimum misclassification rate was 15%,and the average minimum misclassification rate across 11 subjects was24%±4.5%.This investigation indicates that imagined grip force MRCP may encode imagined grip force parameters.Single-trial decoding of imagined grip force parameters based on MRCP may be feasible.The study may provide some additional and fine control instructions for brain–computer interfaces.     

略评弗雷尔与哈贝马斯的认识论基础

弗雷尔和哈贝马斯都信奉“主体是对话发展的”这种批判理论,也都从元理论的角度阐释过理论与实践等问题。社会科学中有关认识论的纷争主要聚焦于两个极端：实证主义与反实证主义。而弗、哈两人的研究却游离于这两个极端,该类学术范式的变异立身于批判解释学的学科视阈。弗雷尔与哈贝马斯有关认识论的理论创见主要涵盖以下几个方面：对人类科学的认识;对批判逻辑这一转换过程的分析;基于对话与共识的真理理论;对交往理性与技术理性的比较。     

基于社区挖掘的网络业务监控方法

网络业务监控通常应用于大型企业级网络监控,通过分析企业网中承载的业务数据,实现对网络中业务类型及不同业务对应的终端分布情况的监测.提出了一种基于社区挖掘的网络业务监控方法,该方法的输入为企业网中IP通联数据,通过构建IP通联图,并基于IP通联图进行社区挖掘,输出IP通联社区,每个社区代表一种业务类型,社区内节点代表相应的业务终端.通过对某大型跨国企业网络数据的实证分析,发现与传统业务监控方法相比,该方法不仅能够有效发现各业务网络,实时监控业务网络状态,且能对网络中出现的新业务进行预警.     

Xyloketals的分子结构与其抑制钙离子通道活性的理论研究

 采用量子化学半经验方法PM3对结构新颖的活性化合物xyloketals进行了几何构型优化。根据计算结果分析了xyloketals的分子结构与抑制钙离子通道活性的构效关系,结果表明xyloketals抑制钙离子通道与分子的体积、疏水参数和前线分子轨道的能量等显著相关。     

阳江原生态红树林土壤放线菌Streptomyces sp. strain V65的次级代谢产物

 一株分自阳江原生态红树植物老鼠簕根部土壤的放线菌Streptomyces. strain V65在高氏Ⅰ号培养基中可产生丰富的红色素。采用硅胶柱色谱、反相硅胶柱色谱、LH-20凝胶柱色谱等技术对其菌体和培养液的提取物进行分离,初步得到2个红色素和1个酰胺类化合物;它们的结构通过核磁共振波谱技术及质谱技术鉴定,分别为：Undecylprodigiosin(Ⅰ) Metacycloprodigiosin(Ⅱ)和SW-B(Ⅲ)((2E,4E)-2,4,6-trimethyldeca-2,4-dienamide)。这是首次关于阳江原生态红树林海洋放线菌Streptomyces. strain V65次级代谢产物研究的报道。     

高职院校科研工作推进机制的探索——以无锡工艺职业技术学院为例

高职院校在内涵建设阶段要解决的问题之一就是科研水平的提升。如何提升,是目前高职院校普遍关注的问题。文章分析了目前高职院校科研工作的现状及存在的问题,明确了高职院校科研工作的具体定位,提出了高职院校科研工作顺利推进的机制措施。     

一个新的苯并-γ-吡喃酮衍生物来源于南海红树林内生真菌ZZF41

 1个新的苯并-γ-吡喃酮衍生物,3,5-二羟基-2-甲基-6-(3-甲基-2-丁烯基)苯并-γ-吡喃酮（1）,以及1个结构独特的环四肽（2）和3个环二肽,从南海红树林内生真菌ZZF41代谢产物中分离得到。它们的结构通过MS、NMR等波谱分析推导确定。化合物1对人鼻咽癌细胞株KB和人鼻咽癌细胞耐药株KB_V200显示了微弱的细胞毒活性（IC₅₀ 均大于50 μg/mL）,而2对同样细胞株有细胞毒活性（IC₅₀ 均小于3.56 μg/mL）。     

Paleomagnetism of early Paleozoic volcanic rocks from the Beishan area,Gansu of northwest China: Preliminary insight into early Paleozoic kinemics of the Beishan terrane

We report rock magnetic and paleomagnetic results for Middle Silurian Gongpoquan and Middle Ordovician Huaniushan volcanic samples collected from the Mazongshan and Hongliuyuan areas of Gansu Province, northwest China. The resultsindicate that the main magnetic mineral of the Gongpoquan and Huaniushan volcanic rock is magnetite, and it may remain characteristic remanent magnetization acquired at the time of formation of the rocks. However, with the exception of samples from site go20, most of Middle Ordovician Huaniushan volcanic samples have a very weak nature remanent magnetization, and generally show an erratic demagnetization behavior, which does not allow isolation of characteristic remanent magnetizations from these samples. Comparison of paleomagnetic results obtained from the Beishan area of Gansu with Paleozoic apparent polar wander paths for Tarimand Siberia suggests that the Beishan tarrane, the southern part of the Beishanarea of Gansu beyond the Mingshui-Shipanjin-Xiaohuang- shan zone, and adjacent Tarim block and Siberia plate could not have been connected in their present configuration by the Middle Silurian time. On the other hand, we infer that the early Paleozoic Mingshui-Shipanjin-Xiaohuangshan oceanic basin may open from west to east during period from the Ordovician to Silurian, and the post-Middle Silurian closing of this oceanic basin may result from a progressed eastward scissor-like rotation.     

A Single Pattern Matching Algorithm Based on Character Frequency

Based on the study of single pattern matching, MBF algorithm is proposed by imitating the string searching procedure of human. The algorithm preprocesses the pattern by using the idea of Quick Search algorithm and the already-matched pattern psefix and suffix information. In search-ing phase, the algorithm makes use of the! character using frequency and the continue-skip idea.The experiment shows that MBF algorithm is more efficient than other algorithms.