Construction Project Bidding Prices and Price Control Mechanism

In the 21st century, especially after the accession to WTO, Construction project bidding price formation mechanism is the main characteristics of the market price of the Construction project is divided in a unified, uniform measurement unit, unified in terms of engineering and consumption of fixed rules on the basis of the implementation of market, competition fees.The first to be carried out not only the financial decision-making, corporate contractors in accordance with the different ways, according to market conditions, its technology, economic strength, through the financial decision-making self-quotation. Second, it is necessary to exercise effective control, both the Construction project bidding price by the form of the contract price is fixed.By design, material procurement, construction management on the implementation of bidding for the effective control of prices.

Supply chain coordination mechanisms under asymmetric information with retailer cost disruptions

A two-level supply chain model involving one supplier and one retailer with linear demand is developed, and supply chain coordination mechanisms under asymmetric information （the retailer＇ s cost structure is asymmetric information） are proposed by employing game theory in two scenarios： coordination mechanisms under asymmetric information in a regular scenario （without disruption）; and coordination mechanisms under asymmetric information in an irregular scenario （ with retailer cost disruptions）. It is optimal for the supply chain to maintain the original production plan and to guarantee a steadily running system if variations of retailer costs are sufficiently low and do not exceed an upper bound. This shows that the original production plan has certain robustness under disruptions. Decisions must be re-made if a retailer＇ s cost change is greater and exceeds an upper bound. Impacts of retailer cost disruptions on the order quantity, the retail price, the wholesale price and each party＇ s as well as the system＇ s expected profits are investigated through numerical analyses.

Research Electricity Production Costs and External Compensation Mechanism

China's power enterprises are mainly dominated by thermal power, thermal power is the key industry of coal consumption, so the thermal power enterprises have a fundamental influence on the environment, and how to not affect the vital interests of power enterprises under the condition of power plant to increase the strength of governance is to solve the current problem of letter. On the basis of various types of power generation enterprise environmental cost of thermal power, hydropower, wind power and nuclear power pollutant treatment cost were described, through the analysis of emission control scheme and the cost compensation of pollutants, environmental governance cost model, using a actual plant data, calculation of various pollutants compensation cost of thermal power plant, and according to the thermal power and wind power for quantitative comparison before and after compensation.

Research and Application of Construction Project Cost Control in Engineering Bidding Stage

In order to strengthen cost control in construction project bidding stage, this paper takes the price control in bidding stage as the main line, dedicated to determine the key point in the stage of cost control, and establishes the more objective and reasonable evaluation in view of the comprehensive evaluation method, and combined with the practical application of engineering to demonstrate. This paper not only improved the tendering and bidding stage method of cost control in construction project in our country, and improves the method system of engineering cost control.

Construction Project Bidding Agency and Cost Management Strategy in Bidding Stage

In the social development,bidding agency plays an important part,providing services for the development of construction project bidding,and endows the development of construction project bidding with a diversified characteristic.The cost management of a construction project bidding stage has a dynamic characteristic.The bidding agency can provide bidding related business for the construction enterprises to ensure the quality and the effect of the bidding service,leading to the foundation for the sustainable development of the construction enterprises.This paper analyzes the deficiency in the bidding agency,and cost management in the bidding stage of the construction projects,as well provide some effective countermeasures or recommendation,to improve the value,and the role of the bidding agency in managing and controlling the construction project cost within the scope allowed by the law,and regulations,and also to ensure the comprehensive benefits of construction projects for the construction enterprise.

Effects of aggregating forests, establishing forest road networks, and mechanization on operational efficiency and costs in a mountainous region in Japan

We investigated forest road networks and forestry operations before and after mechanization on aggregated forestry operation sites. We developed equations to estimate densities of road networks with average slope angles, operational efficiency of bunching operations with road network density, and average forwarding distances with operation site areas. Subsequently, we analyzed the effects of aggregating forests, establishing forest road networks, and mechanization on operational efficiency and costs. Six ha proved to be an appropriate operation site area with minimum operation expenses. The operation site areas of the forest owners＇ cooperative in this region aggregated approximately 6 ha and the cooperative conducted forestry operations on aggregated sites. Therefore, 6 ha would be an appropriate operation site area in this region. Regarding road network density, higher-density road networks increased operational expenses due to the higher direct operational expenses of strip road establishment. Therefore, road network density should be reduced to approximately 200 m.

Establish the Long-effective Mechanism of Food Security in China

In despite of fluctuation in recent years, the grain yield in China has been increasing, which relieves the conflict between supply and demand and turns the situation of food security good. However, because of the rapid increase in food consumption, the conflicts of food quality and structure in the supply and demand equilibrium has become more and more obvious and the long-effective mechanism of food security has not been estab-lished yet. It is found that the factors affecting food security in China include the scarcity and dissipation of resources, farmers’ low enthusiasm in planting grain crops and the inappropriateness of the emphasis and measures of macro-economic regulation and control. Therefore, the authors advance to optimize resources allocation, strengthen macro-economic regulation and control and policy stimulation and establish the mechanism of allocating grain production cost, to set up the long-effective mechanism of China food security and keep it stable in the long term.

Fuzzy Comprehensive Judgment on the Mechanical Equipment Bid Sheet

The reasonable model of fuzzy comprehensive judgment is found by means of the theory and method of multi-level fuzzy judgment on the basis of the judging index system of mechanical equipment bid sheets. The scientific method is supplied for the judging bids, the key chain of the judging process of the mechanical equipment bid sheet. All factors are considered, especially quantitative factors or qualitative factors in the process of judgment.

Wind Power Bidding Strategy Based on the Minimax Regret Criterion with Limited Distribution Information

In optimal wind bidding strategy related literatures, it is usually assumed that the full distribution information (for example, the cumulative distribution function or the probability density function) of wind power output is known. In real world applications, however, only very limited distribution information can be obtained. Therefore, the “optimal bidding strategy” obtained based on the hypothetical distribution may be far away from the true optimal one. In this paper, an optimal bidding strategy is obtained based on the minimax regret criterion. The salient feature of the new approach is that it requires only partial information of wind power distribution, for example, the expectation and the support set. Numerical test is then performed and the results suggest that the method established in this paper is effective.

Outcomes of the Clean Development Mechanism in Argentina

This paper summarizes the results of the implementation of the CDM in Argentina during the first period of commitment of the Kyoto Protocol. From a total of sixty- five projects ideas, forty-four achieved registration under the CDM EB while the rest remained approved at national level (12), under evaluation (2), suspended (5) or rejected (2). Most of the projects focused on the generation of electricity from renewable energy, mainly wind energy and the use of landfill gas and methane for energy. Emissions reductions achieved 33.4% of the expected CERs up to 2012 with strong differences among sectors. Results demonstrated that under the current Argentina’s energy policy framework, the income by the selling of CERs covered less than 6% of the incremental costs for renewable energy projects. A sensitivity analysis to evaluate the impact of CDM in the coverage of incremental costs for renewable energy based on the prices of both the energy in the local market and the CER demonstrated that the best conditions would only cover 15% of those costs. The contribution of CDM to technology transfer in Argentina was minor considering that 45% of the projects qualified as type III where technological learning and capacity building were limited at the level of operation and maintenance of a foreign technology. Domestic and external barriers that prevented a better performance of CDM projects in terms of GHG mitigation, technology transfer and the contribution to a sustainable development were also analyzed.

Internal Mechanisms of Corporate Governance and Firm Performance： A Review of Theory and Empirical Evidence

Literature has revealed the existence of several external and internal disciplining mechanisms that are hypothesized as factors influencing corporate governance. This paper reviews the theoretical and empirical literature on five internal mechanisms of corporate governance, namely, dividend payouts, financial leverage, institutional shareholding, board duality, and board size. These mechanisms have received the greatest deal of attention in the literature. The paper makes an original contribution to the literature as it is the first of its type, to the best of our knowledge, to provide a comprehensive idea on these five internal mechanisms of corporate governance. This study will help in investigating the relationship between internal corporate governance mechanisms and firm performance with the main aim of extending the existing literature on firm performance by empirically investigating the contribution of these mechanisms in the smooth conduct of business operations. The empirical evidence amassed favors a smaller board size, non-existence of duality and favorable dividend mechanisms as effective internal governance mechanisms affecting firm performance. At the same time, there is no conclusive evidence on the relationship between leverage and institutional ownership as internal governance mechanisms influencing agency cost and firm performance.

CPECC Have Won the Bid in Kuwait at the cost of $ 398 million

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Based on the Incentive Mechanism of Enterprise Reverse Logistics Research Literature Review

In recent years, along with the people environmental protection consciousness enhancement and the concept of circular economy enterprises to implement reverse logistics is imperative. In recent years, based on the incentive mechanism of reverse logistics literature has gradually emerged. In this paper, the concept of reverse logistics are introduced in detail, and compares the forward logistics and reverse logistics, analyzes the driving factor for the formation of reverse logistics, from the Angle of the government and the enterprise two introduces the related literature, the incentive mechanism on the basis of the summary, summarized the problems of enterprise reverse, government incentives for enterprises is discussed the importance of reverse logistics, based on the existing research results in recent years to sum up, the paper further research are pointed out.

FAST HUGS BID理念在ICU机械通气患者中的应用效果分析

目的:探讨FAST HUGS BID理念在ICU机械通气患者中的应用效果。方法:将收入我科的气管插管行机械通气并计划性拔管成功患者,按照入科时间分为对照组和试验组,对照组采用危重患者护理常规,试验组在护理常规基础上,引入FAST HUGS BID理念,比较2组患者气管插管的非计划性拔管率及平均留置时间。结果:对照组患者气管插管的非计划性拔管率为1.73%,平均留置时间(7.59±6.06)d,试验组患者气管插管的非计划性拔管率0.93%,平均留置时间(5.04±4.03)d。结论:FAST HUGS BID理念降低了气管插管患者的非计划性拔管率,明显缩短了气管插管的平均留置时间,提高了ICU重症患者的监护质量,是一种科学、有效的管理方法。

社区“弹性”治理模式研究——以纽约市商业改良区(BID)为例

社区治理实践通过针对社区发展环境的动态评估,依赖地方支持,随时调整社区发展策略。目前,商业改良区(BID)模式是在西方国家较为广泛实践的社区治理模式之一。该模式在应对不同的地方属性时,衍生出适应性的治理规模、机构结构及运作模式,并在20世纪90年代触发多个城市内城复兴。文章选取案例数量大、发展时间长的纽约市作为样本对象,基于前人的分类研究,讨论各类型BID在治理规模、运营机构与运作方案方面的结构框架,解读该社区治理模式支持地方性动态实践的核心机制;并在此研究基础上,反思该模式对于我国整合传统公共政策、市场投资与地方性资源,开启城市公共政策由管理向治理转型的的借鉴意义。

碳交易计划对低碳居住建筑经济影响研究

随着我国碳市场的全面开启,低碳居住建筑增量成本过高、资金回笼期太长的现况或将被打破。以北京市一栋居住建筑为例,利用机器学习、工程经济学等相关理论方法,运用PKPM软件建模进行碳排放计算,以静态投资回收期作为评价指标,分析碳交易计划对低碳居住建筑全生命周期的经济影响。结果表明:碳交易计划可为新建低碳居住建筑整体带来10.92%的额外收益,其中运行阶段碳收益占比7.03%。本研究可为房地产开发商开发房屋类型选择提供参考。

淬火温度对超超临界火电站用COST-FB2钢显微组织和室温强度的影响

COST-FB2钢因具有优越的高温持久性能而被广泛应用在620℃超超临界火电站机汽轮机转子上。本工作对取自国内首支自主研发制备的20 t级COST-FB2钢转子大锻件本体的试样进行了不同温度淬火和两次回火的热处理,并测试了其力学性能,研究了淬火温度对COST-FB2钢微观组织的影响。结果表明:在1000~1150℃内,随着淬火温度升高,COST-FB2钢的强度和硬度不断增加,塑性整体变化不大,冲击功由10 J增大至23.5 J后又开始减小;COST-FB2钢的平均晶粒尺寸由65.5μm增加到212.1μm,马氏体板条块宽度由4.75μm增加至6.06μm,位错密度由4.8×10^(9) cm^(-2)增加至11.8×10^(9) cm^(-2)。通过强化增量计算推断析出强化和位错强化的增量是COST-FB2钢回火后室温屈服强度增加的主要原因;将晶界强化和马氏体板条块界强化分别与基体强度、析出强化和位错强化增量之和叠加,得出马氏体板条块界强化增量叠加值更接近试验屈服强度值。该研究结果能够为COST-FB2钢大锻件整体热处理提供参考,助力大锻件的国产化。

GHG emission reductions and costs to achieve Kyoto target

Emission projection and marginal abatement cost curves(MACs) are the central components of any assessment of future carbon market, such as CDM (clean development mechanism) potentials, carbon quota price etc. However, they are products of very complex, dynamic systems driven by forces like population growth, economic development, resource endowments, technology progress and so on. The modeling approaches for emission projection and MACs evaluation were summarized, and some major models and their results were compared. Accordingly, reduction and cost requirements to achieve the Kyoto target were estimated. It is concluded that Annex I Parties' total reduction requirements range from 503—1304 MtC with USA participation and decrease significantly to 140—612 MtC after USA's withdrawal. Total costs vary from 21—77 BUSD with USA and from 5—36 BUSD without USA if only domestic reduction actions are taken. The costs would sharply reduce while considering the three flexible mechanisms defined in the Kyoto Protocol with domestic actions' share in the all mitigation strategies drops to only 0—16%.

China's Development Modeli:the Costs and Benefits of the Decentralization Approach to Transition

This article provides a coherent framework within which to understand China’s development model,as well as the successes and the failures of China’s decentralization approach to reform.The combination of political centralization and economic decentralization provide local government with enough incentives to develop local economies,in particular incentives to promote market privatisation locally.However,the relative evaluation-based incentive schemes lead to inter- regional market segmentation,increasing inter-regional development gaps and the unequal provision of certain public goods.The success of early-stage reform can be attributed to the benefits of the decentralization approach.The next stage reform should however focus on minimizing the associated costs.China’s gradualist reform can be seen as a mechanism design issue under the control of central government.Therefore,it is essential to take both the costs and benefits of the decentralization approach into account in the design of the next-stage reform package.

Sustainable Asphalt Concrete Containing RAP and Coal Gangue Aggregate:Performance,Costs,and Environmental Impact

The shortage of natural aggregates is becoming a severe problem in the pavement industry globally.To address this issue,in this study,an effort was made to use reclaimed asphalt pavement(RAP)and coal gangue(CG)as coarse and fine aggregate,respectively for producing the hot mix asphalt(HMA).As the replacement of natural aggregate,there were seven types of HMA containing 20%and 40%RAP coarse aggregate content,and 10%and 25%CG fine aggregate content were designed and prepared.In addition,Marshall Stability test,rutting resistance test,immersion Marshall test,freezing-thaw splitting test,moisture-induced sensitivity test,and low-temperature semicircle bending test were conducted.The results show that the properties of the asphalt mixture containing both RAP and CG meet the Chinese specification through it is slightly lower than the virgin asphalt mixture.Furthermore,the addition of 40%RAP coarse aggregate and 25%CG fine aggregate to asphalt mixes can significantly reduce manufacturing costs,energy consumption,and CO_(2)emissions by 29.4%,19.8%,and 21.9%,respectively,compared to the virgin asphalt mixture.The finding of this study contributes to current knowledge by investigating the feasibility of jointly using the RAP and CG in asphalt mixture,which could be interested by both industry and academic society.