调水工程两部制水价风险分析

两部制水价能有效降低调水工程的经营风险,但也存在不安全因素。本文阐述了两部制水价实施过程中的风险来源;根据两部制水价的结构特征,提出利用总亏损率、短期亏损率、水价超额率以及总风险度来度量不同基本水量方案的风险程度。在核算供水成本的基础上,计算了在实际供水量不足的情况下,三种水价方案的风险程度,得出胶东调水工程的基本水量不宜超过设计供水量的20%的结论,并通过灵敏度分析证明该方案具有一定的抗风险能力。     

新形势下棉花栽培技术发展存在的问题及创新建议

2014年国家更新棉花市场价格形成机制,使得棉花产业发展面临着新的机遇和挑战。基于棉花产品发展的新形势,研究如何应用现有的棉花栽培技术解决新形势下棉花栽培面临的问题,提出创新棉花栽培技术的若干建议,希望对现有棉花栽培技术的发展现状有所改善。     

Application of Intelligent Neural Network on Prediction of Time Series Signal

The research of neural network has been maturated both in theory and practical application since 1980's, and also been employed into the prediction and analysis of nonlinear time series signal in the field of signal process system. Concerning with the problem of time series signal prediction based on traditional neural network, such as black box, poor accuracy, and facing the shortage of post knowledge, this paper presents a different neural network prediction model from the traditional ones, based on intelligent neural cell model and employing the iterative prediction method. Through the example on stock price prediction, the prediction accuracy and practical value are proved.     

济源市农业水价分析及其调整策略

科学合理的农业水价能起到价格杠杆作用,促使农业节约用水。以济源市为例,分析区域农业用水概况、农业水价现状及其存在问题,以全成本水价理论和能值价值理论为基础估算得到区域内主要灌区的农业成本水价;以亩均产值和亩均净效益为基础测算得到农民水价承受能力为0.11元/m3;参考计算结果,明确了农业水价的调整范围,针对济源实际,提出了农业水价调整策略。为济源市农业水价调整提供了参考依据,也可供其他地区农业水价调整借鉴。     

广东省农业水价综合改革实践与探索

实施农业水价综合改革是农业节水工作的关键环节,关乎国家水安全和农业可持续发展.从广东省农业水价综合改革工作现状出发,阐述了全省改革实施区供水计量设施和信息化建设、农业水权分配制度、水权交易体系、水价形成机制、工程运行管护机制、精准补贴和节水奖励机制等主要改革内容和实践情况,总结了创新经验和做法,分析了改革过程中存在的困...     

从农产品价格角度看农民利益分配

从农产品价格的角度分析了我国农民利益分配的不合理性,指出了在市场经济条件下这种不合理利益分配单靠市场机制是无法调节的,需要加强政府对这方面的调控。     

城镇地价监测点的地价测算分析

城镇地价监测点的土地价格是由点到面的对城镇地价的总体反映,其价格的测算与确定直接影响着政府部门对整个城市地价水平的把握和控制。为此,根据地价监测点在城镇内不同用地类型、不同区域和不同土地级别中的分布,确定测算地价监测点最佳方法,然后具体分析和测算监测点的修正系数,最后计算出监测点地价,从而形成一套完整的地价监测点土地价格测算模式。     

水价电报核定制定价模式的应用

根据一部分地区自发出现的水价申报制定价模式，解决了水价不反映水商品价值的矛盾，兼顾了水利工程因自然条件不同形成的供水成本差异，兼顾了地区这间人民群众的生活水准差异，得到了供需双方和当地政府的认可的实际，介绍了水价申报核定制的运作方式、基本特点及其利弊。     

Selecting Bid with Reasonably Low Price Without Bottom Price Based On Sector Estimate

For raveling out the main shortage of tendering which is the reasonable sector is unreasonable of making the bid evaluation uncertain. In order to eliminate subjective factor, this paper quantificationally analyses the price in bidding and establishes the sector selecting bid model based on the sector estimate idea, which tries to provide a new method and academic basic for determining the reasonable sector. Finally, the article gives an example to prove that the model is feasible and effective and it tries to ensure the bidding assessment public, equitable and just.     

An EOQ Model Taking Account of the Variable Selling Price Under Stock Dependent Selling Rate

In 1995, Padmanabhan and Vrat presented inventory models for deteriorating items with a constant selling price and stock dependent selling rate . Based on the result, in 2000, Kun-Jen Chung, Peter Chu and Shaw-Ping Lan devoloped the necessary and sufficient conditions of the existence and uniqueness of the optimal solutions of the profit per unit time functions without backlogging and with complete backlogging. Actually, the selling price need not be constant, it may be variable . This paper puts forward an EOQ model when the selling price is variable without backlogging, discusses the existence and uniqueness of optimum solution. The example is provided to illustrate the model. The theoretical evidence is provided for the inventory system to make management decision.