基于WINDOWS的多媒体语言教学系统的研究

介绍一一个自行设计和开发的基于ＷＩＮＤＯＷＳ的多媒体语言教学系统，结合在汉语教学中的应用，对系统的特点，功能，结构和运行和软硬件环境，数据准备，系统软件的设计思想以及实现各功能模块的关键技术作了深入的讨论。     

用演化算法优化变分参数

强外场中类He体系基态能的计算是非常复杂和困难的 ,利用MCI方法将体系的状态波函数用later基展开 ,用演化算法优化波函数中的变分参数 ,再求解相应的定态Schr dinger方程 ,获得了类He体系基态能高精度的结果 ,该工作表明由于使用了演化算法获得了最优参数 ,从而正确地确定了一组基 ,对类He体系基态能计算结果的准确性与可靠性方面起了重要作用     

用Delphi开发多媒体软件

介绍Delphi的多媒体功能，并给出用Delphi开发多媒体播放程序的实例。     

干扰抵消技术在HSDPA中的应用

分析了选代干扰抵消原理及其在HSDPA中的应用,介绍了迭代干扰抵消各种实现方法:硬判／软判及串行干扰抵消、并行干扰抵消等,并分析了各种迭代方法的收敛性、优缺点和复杂度,最后介绍了一些简化方法。     

开发Windows环境下多媒体应用程序方法分析

全面探讨基于ＶｉｓｕａｌＢａｓｉｃ及Ｃ＋＋语言开发ＭＳＷｉｎｄｏｗｓ多媒体应用程序的基本方法，并对它们作分析比较．     

MCI分析法在确定油气成藏期次中的应用

介绍了流体包裹体分子成分 (MCI)分析技术及其特点 ,以塔里木盆地英南 2气藏为例 ,利用 MCI技术及其研究方法进行油气成藏期次的研究。对塔里木盆地英南 2现今气藏储层中的烃类 (凝析油与储层沥青 )以及气藏志留系与侏罗系储层成岩矿物中的含油包裹体分子进行了地球化学成分分析 ,对比研究含油包裹体分子地球化学成分和现今气藏中的烃类的分子地球化学成分。研究表明油包裹体分子成分与原油和储层沥青分子成分相似 ,反映它们来源相同 ,是同一期烃类充注的产物 ,英南 2气藏油气成藏期次为一期     

管控一体化在煤矿信息系统中的应用

阐述了管控一体化的理念、方法与发展,对于管控一体化与综合自动化、MES、集中控制等概念进行了比对,对管控一体化涉及的关键技术及实现方法进行了说明．同时介绍了管控一体化在企业实施应用中的解决方案。     

FMRI connectivity analysis of acupuncture effects on the whole brain network in mild cognitive impairment patients

The increased risk for the elderly with mild cognitive impairment (MCI) to progress to Alzheimer's disease makes it an appropriate condition for investigation. While the use of acupuncture as a complementary therapeutic method for treating MCI is popular in certain parts of the world, the underlying mechanism is still elusive. We sought to investigate the acupuncture effects on the functional connectivity throughout the entire brain in MCI patients compared to healthy controls (HC). The functional magnetic resonance imaging experiment was performed with two different paradigms, namely, deep acupuncture (DA) and superficial acupuncture (SA), at acupoint KI3. We first identified regions showing abnormal functional connectivity in the MCI group compared to HC during the resting state and subsequently tested whether these regions could be modulated by acupuncture. Then, we made the comparison of MCI vs. HC to test whether there were any specific modulatory patterns in the poststimulus resting brain between the two groups. Finally, we made the comparisons of DA vs. SA in each group to test the effect of acupuncture with different needling depths. We found the temporal regions (hippocampus, thalamus, fusiform gyrus) showing abnormal functional connectivity during the resting state. These regions are implicated in memory encoding and retrieving. Furthermore, we found significant changes in functional connectivity related with the abnormal regions in MCI patients following acupuncture. Compared to HC, the correlations related with the temporal regions were enhanced in the poststimulus resting brain in MCI patients. Compared to SA, significantly increased correlations related with the temporal regions were found for the DA condition. The enhanced correlations in the memory-related brain regions following acupuncture may be related to the purported therapeutically beneficial effects of acupuncture for the treatment of MCI. The heterogeneous modulatory patterns between DA and SA may suggest that deep muscle insertion of acupuncture is necessary to achieve the appreciable clinical effect.     

MIDI键盘设计

MIDI文件并非像wav或mp3那样量化的纪录乐曲每一时刻的声音变化,它记录的是如"音乐在什么时刻,使用什么乐器,以什么音符开始,以什么音调结束,加以什么伴奏"等等这样的信息,所以MIDI文件本身是个发音命令,MIDI文件本身只是一些数字信号而已,不包含任何声音信息.而wav是把声音的波形记录下来,将这些模拟波形转换成数字信息.这次做的这个MIDI键盘的设计是能够利用VB的一些控件做出一个类似键盘的东西,点击上面的键能够发出类似于钢琴的声音,而且还可以模仿其他乐器发出声音,并且还可以用各种调子来弹奏并发声.     

Metabolism of amyloid β peptide and pathogenesis of Alzheimer’s disease

The conversion of what has been interpreted as “normal brain aging” to Alzheimer’s disease (AD) via transition states, i.e., preclinical AD and mild cognitive impairment, appears to be a continuous process caused primarily by aging-dependent accumulation of amyloid β peptide (Aβ) in the brain. This notion however gives us a hope that, by manipulating the Aβ levels in the brain, we may be able not only to prevent and cure the disease but also to partially control some very significant aspects of brain aging. Aβ is constantly produced from its precursor and immediately catabolized under normal conditions, whereas dysmetabolism of Aβ seems to lead to pathological deposition upon aging. We have focused our attention on elucidation of the unresolved mechanism of Aβ catabolism in the brain. In this review, I describe a new approach to prevent AD development by reducing Aβ burdens in aging brains through up-regulation of the catabolic mechanism involving neprilysin that can degrade both monomeric and oligomeric forms of Aβ. The strategy of combining presymptomatic diagnosis with preventive medicine seems to be the most pragmatic in both medical and socioeconomical terms.