stocks相关论文
Afforestation and forest management can increase carbon stocks and account for emission reduction according to the Kyoto......
Village landscapes, which integrate small-scale agriculture with housing, forestry, and a host of other land use practic......
The year of 2012 is commencement point of mid and long term amelioration for Chinese paper industry.There are three reas......
This paper explains environmental problems from the point of economy. Referring to the “System of Integrated Environmen......
Soil organic carbon (SOC) storage under different types of vegetations in China were estimated using measured data of 2......
One of the major difficulties blocking China’s path to becoming a developed capital market is the “state share overhan......
Studies related to the quantitation and distribution of soil organic carbon(C) under different land use types can help t......
为降低雁山区苦瓜枯萎病发生率,促进雁山区苦瓜产业健康发展,以皇家1号、砧蓉1号、格丽早优8号、鼎盛南瓜及雁山本地丝瓜5个品种为......
用提高加工精度的办法来降低轴承的噪音越来越困难,因此轴承润滑脂的降噪性能变得越来越重要。就润滑脂基础油,稠化剂及其纤维结构......
金属矿产资源的有限性使得金属类期货价格和相关上市公司股票价格之间表现出较强的联动性,使得金属类期货可以在一定程度上满足股......
用盆栽自然干旱法对豫楸1号4种砧木嫁接苗进行干旱胁迫。在胁迫过程中，测定了超氧化物歧化酶（SOD）、过氧化物酶（POD）、过氧化氢酶（CAT）活......
Recycling organic waste in managed tropical forest ecosystems:effects of arboreal litter types on so
The aim of this study is to determine the influence of tree litters on soil nutrients in a managed forest in southwester......
石油库总图设计应符合当地城市规划、环境保护和防火安全的要求,库区与居住区之间要满足安全距离的要求,尽可能采用大型储罐,以达......
运用资本资产定价ＣＡＰＭ模型的β－系数风险测度原理，对沪市４００余只股票（基金）的投资风险敏感度进行了定位，并依据β值大小和性质划分证券组合区域......
比较研究了羊草草原连续自由放牧19年和围栏禁牧对暗栗钙士磷的贮量和形态的影响.结果表明,与未放牧草地相比,放牧草地土壤0～60 cm......
体育产业概念股作为衡量体育产业发展状况的重要指标,其涨幅也决定了投资者对体育产业的关注度,间接体现了我国体育产业的发展状况......
安徽省上市公司股票的非线性特征的定量检验表明,安徽省上市公司的股票收益率不服从正态分布,股票市场不属于有效市场。运用R/S分......
采用控温、营养强化的方法培育红鳍笛鲷(Lutjanus erythropterus)亲鱼,并结合激素诱导使其在1周年内每个月不间断产卵.实验亲鱼454......
对干旱胁迫条件下豫楸1号4种砧木嫁接苗保护酶（SOD、POD、CAT）活性、脯氨酸（Pro）、丙二醛（MDA）、质膜透性和叶片含水量进行测定,研究豫楸......
针对传统技术分析在识别股市上涨行情时存在时间滞后和平滑程度难以掌握的缺点,提出一种基于小波变换的股市分析方法.利用小波变换......
在市场主导的世界里,金融业总是面临一个又一个危机,股票、债券、外汇、存贷款波动空前激烈,现代金融体系时时刻刻都处于风险之中,......
经济合作与发展组织国家(OECD)为世界主要的石油消费地区,其石油消费量约占世界总量的62%.本文介绍了OECD国家石油的资源、生产与......
Energy demand-supply mechanism with the load shape for both residential and commercial buildings in the Province of Onta......
