浅析数学在股市技术面分析中的应用

随着中国资本市场的不断壮大和发展,在资本市场进行证券投资实现自己个人资产的保值和增值的方式成了越来越多的人选择的方式,股票市场是资本市场的一个重要品种,股市技术面分析又是人们进行股票投资时常用的一种分析方法,并且人们在进行股市技术面分析的过程当中应用了大量的数学知识,所以通过浅析数学在股市技术面中的应用对于股票投资市场来说具有一定的现实意义。

利用蚂蚁系统对公司股票的投资分析——以台湾上市公司股票为例

本研究主要目的在于将蚂蚁族群算法应用在台湾上市代工股票投资组合上。并选择台湾四家OEM之股票上市公司与其在美上市的主要客户为研究资料,藉由各股的报酬率及成交量作为本研究系统架构中费洛蒙及能见度指针。运用蚂蚁族群算法结合基本面分析、技术面分析,提供投资决策给投资人参考。

江苏六阳资产管理有限公司投资策略和风控分析

文章对江苏六阳资产有限公司的投资策略和风险控制方案进行了分析,重点从投资的基本面、技术面、投资范围、投资仓位、投资预警和止盈止损等方面进行了详细的阐述。通过对公司近两年的投资现状进行统计分析的,归纳总结出一套具体的投资方案和风险控制的策略,为公司今后的投资方向提供一定的参考价值。面对市场日益残酷的竞争压力,六阳资产只有不断地更新自身的投资品种和投资策略,才能在同行业中立于排头军的位置。

太阳黑子周期高峰即将来临(上)

分析金融市场走势,捕捉投资机会,各路人马各有各法。有基本面分析、有技术面分析、有随机漫步、有市场心理分析、有相反理论,还有天文学派,甚至是五行八卦……不一而足。而利用太阳黑子周期分析金融市场,亦是一趣。笔者在2016年10月写过《太阳黑子周期与金融市场漫谈》一文,不觉有近八年时间。趁第25个太阳黑子周期高峰即将来临之际,分析各市场走势,正是时候。

信息化背景下的银行股行情分析

本文根据信息化背景下银行业的基本面信息和技术面信息,对银行股价的走势进行了分析并作出了预测。分析表明,银行业整体状况较好,银行股的股价也成上升趋势。从近一年来银行股的走势来看,持有银行股相对于银行存款来说并不划算。但长远来看,持有银行股还是一种不错的投资方式。

维生素E黏胶/石墨烯锦纶/蚕丝复合功能交织物的制备与研究

高附加值、多功能纺织品成为纺织研究界探索的重要领域。本文通过将蚕丝、维生素E黏胶和石墨烯锦纶进行复合,设计织造了15种织物,对其进行抗氧化性、远红外性能、抗紫外性能与抗静电性能的测试研究。采用响应面分析技术(RSM)研究了投纬比例和组织结构对功能性表达的影响关系,结合模糊多准测决策法(F-MCDM)对最佳工艺参数进行了评估。结果表明:两种纬纱的投纬比和织物组织对织物的功能性表达都有不同程度的影响,且影响是交互的复杂作用。当纬纱中维生素E黏胶和石墨烯锦纶的投纬比为1︰1、织物组织为八枚缎纹时,织物试样的四种功能性表达最好。

基于MASW的钢-混凝土组合板界面剥离损伤识别

目的提出一种基于多通道面波分析技术(MASW)的钢-混凝土组合板界面剥离损伤识别方法。方法从Rayleigh波的波动方程出发,结合MASW技术建立钢-混凝土组合板有限元模型,通过激励正弦信号产生Rayleigh波,研究其波速衰减特征,并提出基于波速衰减的MASW损伤识别算法;搭建MASW试验平台,建立多通道超声面波检测系统,并进行多道信号采集和数据处理,验证所提出算法的有效性。结果数值模拟中,组合板的界面剥离损伤使表面波产生"分流"现象并造成表面波速度衰减,其衰减幅度与剥离长度密切相关;MASW试验中,表面波在损伤区域发生了较大程度的波速衰减,其波速衰减的起始道间与剥离损伤的起点和终点相对应。结论波速衰减幅度与剥离长度近似呈正相关的线性关系,所提出的损伤识别方法能够确定剥离损伤的具体范围,识别精度达到厘米级。

弧齿锥齿轮和准双曲面齿轮模型设计的方法及展望(英文)

Accurate modeling of spiral bevel and hypoid gear is the foundation of the tooth contact analysis(TCA) technology and error correction technology of the tooth surface,which is the key technology in digitized manufacturing. This paper summarized the related achievements and divided the methods of modeling spiral bevel and hypoid gear into three categories,including modeling by discrete points on the tooth surface,curve fitting,and simulation machining,and generalized the main steps and the key ideas of each method. At the same time,this paper analyzed the problems and inadequacies existing in the process of model design. Three directions were proposed for modeling of spiral bevel and hypoid gear in the future,that are more accuracy,more efficiency and more flexibility. The paper provides some methods that make the design and machining of spiral bevel and hypoid gear faster and more accurately.在弧齿锥齿轮和准双曲面齿轮的数字化制造中,精确模型是其关键技术—齿面接触分析技术(TCA)和齿面误差修正技术的基础。总结和归纳了近些年来国内外相关研究成果,将弧齿锥齿轮和准双曲面齿轮的模型设计方法分成离散点、曲线拟合、仿真加工模型设计3种类型,并概括了其关键思想与步骤。同时,分析了模型设计过程中存在的一些问题与不足,整合先进方法和思想,对未来弧齿锥齿轮和准双曲面齿轮模型设计研究提出了高精度、高效率、高柔性3个发展方向,为弧齿锥齿轮和准双曲面齿轮更加快捷精确地设计和加工提供了参考。

瑞利波波形反演的发展现状及展望

常规多道面波分析技术反演过程需要计算基于水平层状介质假设基础上的理论频散曲线,从而导致该方法的水平分辨率无法满足横向不均匀复杂介质的要求。而目前已成为人们研究热点的全波形反演技术,其反演过程基于波动方程求解,对瑞利波而言,无需根据频散方程计算频散曲线,理论上克服了常规多道面波分析技术横向分辨能力的"先天不足"。因此,瑞利波波形反演是瑞利波勘探领域中一个重要的发展方向。论文回顾了全波形反演的发展历史,剖析了瑞利波波形反演的发展现状及存在问题,指出了瑞利波波形反演需要进一步研究的问题和发展趋势,为瑞利波波形反演研究提供了一定的研究思路。

浅析构建自选股池的选股思路

选择恰当的个股是在股市中获利的关键因素,而构建相对完善的自选股池是投资者能够及时、准确地把握个股的基础,因此,构建完善的自选股池对于投资者来说是极为重要的。投资者在构建自选股池时,应遵循先进行基本面分析,后进行技术层面分析的顺序,依次对宏观经济、行业状况、公司概况及各项技术指标进行深入的剖析,选择恰当的个股加入自选股池,再从中选出最为优秀的股票进行投资,以在股市中获得收益。

弧齿锥齿轮建模的方法及展望

弧齿锥齿轮的精确模型是其数字化制造中关键技术齿面接触分析技术(TCA)和齿面误差修正技术的基础。对近些年来国内外有关相关研究成果进行了总结和归纳,把弧齿锥齿轮的建模方法分成离散点、曲线拟合、仿真加工建模三种类型,并就其关键思想或步骤进行了概括。同时,分析其建模过程中存在的一些问题与不足之处,整合其先进方法和思想,对未来弧齿锥齿轮建模研究提出了高精度、高效率、高柔性三个方向并展开了论述,以此为更加快捷精确的设计和加工提供了途径。

Optimization of Microwave-assisted Extraction Technology of Polyphenols from Loropetalum chinense(R. Br.) Oliv

In order to optimize the microwave-assisted extraction technology of polyphenols from Loropetalum chinense （R. Br.） Oliv., the effects of microwave power, ethanol concentration, solid to liquid ratio and extraction time on polyphenols extraction rate were investigated. On the basis of single-factor test, a four-factor and three-level orthogonal test was designed by response surface method to establish a mathematical model between the response value and various factors. The results showed that the intensity of effect of different influencing factor on polyphenols ex- traction rate ranked as microwave power＇s〉solid to liquid ratio＇s〉extraction time＇s〉 ethanol concentration＇s. The optimum microwave-assisted extraction conditions for polyphenols from L. chinense were as follows： extraction power 254 W, ethanol concentration 60%, extraction time 12.5 rain and solid to liquid ratio 1：17. Under the optimum extraction conditions, the extraction rate of polyphenols from L. chinense was 19.17%.

识别庄家低位介入个股的方法

个股的选择评估可分基本面分析评估与技术面分析评估。而笔者实践分析主要以影响股价波动的、做庄类别的大资金买卖作为分析评估的重要依据。做庄类别大资金的进出直接影响个股的价格中短期表现。

国内大豆市场动态

国内大豆市场此次明显比国际市场抗跌,这一方面是由于我国总体经济形势发展保持着良好的势头,另一方面与DCE市场上的资金顽强抵抗有关,但由于CBOT阴跌不止,随着多方的逐步退场,价格也下跌了400余点,其中5月、7月合约相即跌破2000元/t的整数关口,9月合约也是岌岌可危,我们将有关的信息和分析列入如下。

Analysis on control technology for collapsing vibration generated by building demolition blasting

The mechanism of ground vibration in building demolition blasting was investigated,taking into account the prevailing influential factors, including the building's heightof mass center, the quantity size, the structural feature, the component material quantity,the demolition method, the geological structure of the region, earthquake resistance rank,as well as the earthquake wave dissemination.The proposed method was applied efficientlyto reduce the blasting effects on the environment, which enriches the control theoriesof vibration caused by collapse in the blasting process and may provide a good referencefor the related engineering practices.

Using Landsat images to monitor changes in the snow-covered area of selected glaciers in northern Pakistan

Landsat satellite images were used to map and monitor the snow-covered areas of four glaciers with different aspects(Passu: 36.473°N, 74.766°E;Momhil: 36.394°N, 75.085°E; Trivor: 36.249°N,74.968°E; and Kunyang: 36.083°N, 75.288°E) in the upper Indus basin, northern Pakistan, from 1990-2014. The snow-covered areas of the selected glaciers were identified and classified using supervised and rule-based image analysis techniques in three different seasons. Accuracy assessment of the classified images indicated that the supervised classification technique performed slightly better than the rule-based technique. Snow-covered areas on the selected glaciers were generally reduced during the study period but at different rates. Glaciers reached maximum areal snow coverage in winter and premonsoon seasons and minimum areal snow coverage in monsoon seasons, with the lowest snow-covered area occurring in August and September. The snowcovered area on Passu glacier decreased by 24.50%,3.15% and 11.25% in the pre-monsoon, monsoon and post-monsoon seasons, respectively. Similarly, the other three glaciers showed notable decreases in snow-covered area during the pre-and post-monsoon seasons; however, no clear changes were observed during monsoon seasons. During pre-monsoon seasons, the eastward-facing glacier lost comparatively more snow-covered area than the westward-facing glacier. The average seasonal glacier surface temperature calculated from the Landsat thermal band showed negative correlations of-0.67,-0.89,-0.75 and-0.77 with the average seasonal snowcovered areas of the Passu, Momhil, Trivor and Kunyang glaciers, respectively, during pre-monsoon seasons. Similarly, the air temperature collected from a nearby meteorological station showed an increasing trend, indicating that the snow-covered area reduction in the region was largely due to climate warming.

Influence of NaCl deposition on atmospheric corrosion behavior of AZ91 magnesium alloy

Corrosion behavior of AZ91 magnesium alloy under NaCl particle deposition condition was investigated by gravimetric method and surface analysis technique.It was found that the mass gain increased rapidly at the beginning of exposure and then slowly with time.The corrosion morphologies were observed and the results showed that NaCl deposition resulted in the occurrence of localized corrosion.The composition of corrosion product was analyzed using X-ray photo electron spectroscopy.It was suggested that the corrosion product was a mixture of oxide and hydroxide of magnesium and aluminum.

A Geospatial Analysis of Wetland Cultivated Areas in Ile-lfe, Osun State, Nigeria

Wetlands are among the world＇s most productive environment. They are cradles of bio-diversity, providing the water and primary productivity upon which large numbers of plant and animal species depend for survival. Unfortunately, they are also among the world＇s most threatened ecosystems, owing mainly to continued drainage, urbanization, pollution, over-exploitation or other unsustainable uses of their resources. The lack of baseline wetland inventory and limited accessibility to the available ones have been identified as major limitations for sustainable use and management of wetland resources. This study therefore utilized multispectral remote sensing data and global positioning system （GPS） for mapping and assessing the spatial pattern of wetlands, particularly the cultivated ones. The images were processed using ILWIS 3.2 Academic. The combined digital image processing and visual image interpretation were used to identify and segment wetlands in the image data. The coordinates of all identified wetlands and various anthropogenic activities on them were taken using GPS. Questionnaire forms were designed and randomly administered on the households residing around the wetland areas to enable the study to assess the anthropogenic factors, which are capable of destroying the ecosystem. The result indicated that the original size of wetlands in the study area has been modified as there has been reduction in their area extent. Various anthropogenic factors such as, the conversion of wetlands to agricultural, residential and commercial land uses were majorly responsible for the modification. In conclusion, remote sensing data and GIS technology were found useful in mapping and assessing wetlands for sustainable use.

Multi-objective model of fast-solidification sludge

Many sludge curing technologies often have problems like long curing time,high cost,and low efficiency in the condition of low temperature,The compressive strength,moisture content and temperature are defined as the constraint conditions,and solidified cost,pH,COD,NH4+-N concentration are defined as the objective functions.The response surface analysis is used to obtain a variety of response expressions of factors,and the multi-objective optimization model of fast-solidification sludge is established.Then,the curing agent formulas are optimized.After three-day conserving,the curing sludge could meet the landfill conditions.

浅议量化投资的发展

量化投资在海外发展的几十年时间,取得了丰硕的果实。发达资本市场的市场环境、先进理念、制度法规都为量化投资的发展提供了良好的发展环境。迅猛的发展势头和稳定的业绩使越来越多的投资者青睐于量化投资,量化投资、基本面分析和技术面分析已经成为了欧美资本市场的三大主流方法。反观国内,由于各方面原因及条件限制,量化投资在国内的发展速度虽快但仍然不及欧美发达资本市场。其主要原因如下:工具的不成熟、制度的不完善和大众投资者理念的落后等。