总排干沟管理局管养分离工作体会——对抓好国管工程日常养护工作的探讨

总结河套灌区总排干沟管理局多年来工程日常养护工作的经验,分析日常养护工作中存在的问题,探讨河套灌区国管工程如何落实管养分离工作的方法,提出解决措施。

河套灌区国管水利工程保护与管理问题分析及对策建议

一、河套灌区国管水利工程概况内蒙古河套灌区处于黄河内蒙古段北岸的“几”字弯上,是全国三个特大型灌区之一,也是亚洲最大“一首制”自流引水灌区。灌溉取水从黄河三盛公水利枢纽拦河闸实行自流引水,由总干渠、13条干渠、48条分干渠、339条支渠和85522条斗、农、毛渠等七级渠道输配供水至田间地头及湖泊湿地,再由17322条斗、农、毛沟和346条支沟、64条分干沟、12条干沟、总排干沟等七级排水沟道汇入乌梁素海承泄区进行调蓄净化,最后退入黄河。

Opportunities and Challenges of Tight Oil Development in China

Tight oil is the unconventional oil resource developed and utilized by the world on the largest scale currently. The output of tight oil of the USA in 2016 was 220 million tons. According to the statistics of EIA, China has abundant tight oil resources, and its reserves rank No. 3 in the world. In the current situation of continuously low oil prices, through the technical progress and optimized management, the development costs of tight oil of the USA are continuously reduced, and the cost-effective development has been successfully realized. By contrast, China still has to carry out the further exploration in such aspects as policy guidance, understanding of tight oil resources, related technologies and management models. At present, through the positive exploration and practice, some oil fields in China have frist realized the cost-effective development of tight oil. By the summarization of existing successful experience and the study of advanced technologies of the USA in tight oil development, the sound engineering management system suitable for the development of tight oil resource in China is established, and great efforts should be exerted to realize the large-scale, cost-effective development of tight oil resources as soon as possible.

A Discussion about the Path to increase core-competitiveness of Chinese Railway and Bridge Enterprise ——In the case of China Railway Jiujiang Bridge Engineering Co.Ld

This paper summarized the three things included in concept of core-competitiveness： integrative ability, core technology and core product. It reviewed main factors for increasing core-competitiveness, which include core technology, resource integration, information exchange and strategic alliance establishment. It studied the wildly used indicators in core-competitiveness assessment model, such as financial status, business management, technology innovation and enterprise culture. Through case study in China Railway Jiujiang Bridge Engineering Co.Ld, the writer got the conclusion that Chinese Railway and Bridge enterprises should focus on industrial integration and innovation to enhance core-competitiveness.

CNPC Acquires Engineering Company to Enhance Refinery Business

China National Petroleum Corporation （CNPC） announced its acquisition of China Huanqiu Contracting and Engineering Corporation （HQCEC） in mid-June, which was under the administration of the State-owned Assets Supervision and Administration Commission （SASAC）. It is a transnational engineering company boasting the EPC （engineering-procurement-construction） capability and strong ability in oil refining and chemical engineering fields.

A Mathematical Model Based on Supply Chain Optimization for International Petrochemical Engineering Projects

Based on the study of supply chain(SC) and SC optimization in engineering projects, a mixed integer nonlinear programming(MINLP) optimization model is developed to minimize the total SC cost for international petrochemical engineering projects. A steam cracking project is selected and analyzed, from which typical SC characteristics in international engineering projects in the area of petrochemical industry are summarized. The MINLP model is therefore developed and applied to projects with detailed data. The optimization results are analyzed and compared by the MINLP model, indicating that they are appropriate to SC management practice in engineering projects, and are consistent with the optimal priceeffective strategy in procurement. As a result, the model could provide useful guidance to SC optimization of international engineering projects in petrochemical industry, and improve SC management by selecting more reliable and qualified partner enterprises in SC for the project.

On the Application of IPRA Tool in Risk Assessment and Management of International Construction Projects

Construction companies face threats from competition and must be able to adjust to modem technology and changes in customer expectations. These issues require efficient risk management techniques. The success of construction companies running projects in international markets depends on how the risks arise from the host country conditions as well as the project specific risk factors. Successful management of risks requires identification of risks, construction of a risk model which can be used to assess the magnitude of risks, and implementation of response strategies so that an acceptable risk-return balance can be achieved. The project success usually depends on the combination of all risks, response strategies used to mitigate risks, and a company＇s ability to manage them. There exists a need to develop risk models containing the risks of doing business in international markets and factors that affect manageability of these risks. One of the market＇s critical challenges is scheduled management and the understanding and application of program management. This paper uses systematic risk identification, classification and analysis, and measurement and response methodologies to help international contractors quantify the risks of project development and accomplishment.

Predicting lifetime risk for developing atherosclerotic cardiovascular disease in Chinese population:the China-PAR project

Evidence on the lifetime risk for atherosclerotic cardiovascular disease （ASCVD） is insufficient; yet, estimating an individual＇s lifetime risk allows for a comprehensive assessment of ASCVD burden. We developed and validated lifetime risk prediction equations for ASCVD using four large and ongoing prospective cohorts of Chinese, the China-PAR project （Prediction for ASCVD Risk in China）. Sexspecific equations were developed using two cohorts （as the derivation cohort） of 21,320 participants. Two other independent cohorts with 14,123 and 70,838 participants were used for their external valida- tion, respectively. We evaluated both calibration and discrimination measures for model performance. Furthermore, we estimated ASCVD-ffee years lost or excess absolute risk attributable to high 10-year risk （≥10.0%） and]or high lifetime risk （≥32.8%）. After 12.3 years＇ follow-up of the derivation cohort, 1048 ASCVD events and 1304 non-ASCVD deaths were identified. Our sex-specific equations had good internal validation, with discriminant C statistics of 0.776 （95% confidence interval [CI]： 0.757-0.794） and 0.801 （95% CI： 0.778-0.825）, and calibration Z2 of 9.2 （P = 0.418） and 5.6 （P = 0.777） for men and women, respectively. Good external validation was also demonstrated with predicted rates closely matched to the observed ones. Compared with men having both low 10-year and low lifetime risk, men would develop ASCVD 3.0, 4.6 and 8.6 years earlier if they had high 10-year risk alone, high lifetime risk alone, or both high 10-year and high lifetime risk at the index age of 35 years, respectively. We developed well- performed lifetime risk prediction equations that will help to identify those with the greatest potential to avert ASCVD burden after implementation of innovative clinical and public health interventions in China.