Current Situation and Prevention of Soil Erosion from Construction of West-East Natural Gas Transmission (Ningxia-Shaanxi Section)

In the research, problems and damages of soil erosions in West -East Natural Gas Transmission were analyzed; the reasons were summarized and the characteristics of soil erosion were researched in order to explore principles of pipeline prevention and seek countermeasures.

Welding technique studies on the “West-East” pipeline project

This paper described the work of welding process design for the ＂ West-East＂ pipeline project, which is high pressure, large diameter and heavy wall thickness. According to the different geographical situation, climate, culture and the flexibility of the welding methods, this work recommended the semi-automatic process at the east and middle sections and automatic process at the west section of the pipeline project. The manual process is recommended on the tie-in joints and repairs. The double joint pipe and the 3 joint pipe are recommended at the water net place and some in-ditch welding place to reduce the welding volume. Also the special redesigned bevels are recommended for the automatic process and the semiautomatic process. Through all destructive tests, the results shows the welds are meet the requirements of related standards, specifications and design documents.

The West-East Jade Transmission and the Formation of Chinese Civilization

The major program of Chinese Academy of Social Sciences completed in 2012, entitled “The Research on Myths and Legends about Chinese Civilization Source”, led to such a conclusion: The imaginative myths and legends generated along with the Chinese civilization has a profound prehistoric root, far beyond the limit of the Chinese character generation period. The main path of Chinese myths and legends lies in the jade mythology and resulting jade belief. When viewing the origin of jade from a perspective of mythology, we find each major jade (e.g., jade ring, jade arc) form is covertly driven by a mythological concept. The investigation of the era and regional distribution of unearthed jade wares may outline the spreading path map of the jade mythology and belief.

Social and Economic Bene-fits of the West-East Gas Pipeline Project

On July 4 2002, a project attracting world attention, i.e., the West-East Gas Pipeline Project was declared in full-scale commencement. The project will write history with its enormous social and economic benefits.

West-East Gas Project Operational This Year

China’s massive project to transfer natural gas from the Tarim Basin of Xinjiang Uygur autonomous region all the way to the coastal metropolis of Shanghai in the east will go into commercial operation on Dec. 30, according to the National Development and Reform Commission (NDRC).

Research & Development of Grade X70 LSAW Steel Pipes for West-East Gas Pipeline

In this article the research and development of X70 large diameter longitudinal seam submerged arc welded (LSAW) steel pipes for West East Gas Transportation Pipeline project (WEGTP) in China are introduced, including the key technique, fabrication of pipe production line, mass production and the latest progress of LSAW steel pipe technique.

Manufacturing Technology Research and Appraisal of Large-Diameter SSAW Pipe Applied to the West-East Pipeline Project

This paper introduced the research and development of large-diameter SSAW pipes applied to West-East Pipeline project as well as domestic acicular ferrite pipeline steel of X70 grade. Its microstructure analysis was performed in comparison with the pipeline steel of a foreign steel plant (SPC). This paper introduced the research of welding procedures prior to SSAW pipe making and some new procedures and technologies used for West-East Pipeline Project, and appraised the practical level of Large-diameter SSAW pipe applied to the West-East Pipeline Project.

The Studies of the Welding Processes and Procedures on the West-East Pipeline Project

The West East pipeline project attracted the attention from all over the world for its long distance, huge diameter, complex geographic conditions, and diversified welding techniques being applied.In this paper the detail welding process and procedures used in the project are discussed and the distinguished achievements on welding techniques of China pipeline construction are described.

The Technical Specification and Physical Performance Level of Line Pipes for West-East Gas Pipeline

The west east gas transmission engineering is an important project attracting domestic and foreign attention. The gas pipeline used in this project is a gas pipeline with the longest distance, largest pipe diameter and highest transmission pressure in the history of petroleum pipeline construction of China. For the construction of top rank gas pipeline in the world with high standard, high speed and high benefit, the key of specifying production of metallurgical and pipe making enterprises and ensuring quality performance of the steel and steel pipe is to research and formulate a feasible and satisfactory technical Specification for engineering steel and steel pipe with international level. In this paper the author introduces the establishment of the technical specification for West East gas pipeline project, and lays emphasis on the analysis and discussion of principle and method determining major technical indexes related to line pipes for West East gas pipeline. The author also introduces actual material selection of gas pipeline home and abroad, and presents examination and application of the technical specification for West-East gas pipeline.

Study and Application of Internal Coating Technique to Drag Reduction of the Trunk Pipeline for the West-East Gas Pipeline

Coverage layer coated in the internal wall of pipeline enables the friction drag to be reduced, the throughput and the gas transmission efficiency to be increased, the frequency of pigging and the number of the intermediate compressor station to be reduced, and the power consumption of the compressor to be decreased etc. The drag reduction is a high advanced scientific technique with outstanding economical benefit. The study and application of internal coating technique for drag reduction of 4000 km trunk pipeline in West East gas transmission pipeline (WEGTP) project are described, in which the main points are the drag reduction principle, coating process and the indoor study of this technique with own decided knowledge property right at home.

Application of New Techniques, Materials and Technologies in West-East Gas Transportation Pipeline Project

With the application of new techniques, materials and technologies in West East Gas Transportation Pipeline (WEGTP) project, the design concept of domestic pipeline industrial construction has been updated, speeding up the development and improvement of the strength as a whole in aspects of smelting industry, pipe fabrication, pipeline construction and equipment manufacture,making China’s pipeline industry catch up with the trend of development of the world advanced level.

共同富裕目标下东西部协作机制重构研究

东西部协作是推动区域协调发展、协同发展、共同发展,从而实现共同富裕的大战略、大举措。党的十八大以来,东西部协作和对口支援的规模不断扩大、路径不断拓宽,西部地区全面建设小康社会成果显著。进入新发展阶段,要实现党的二十大报告提出的全体人民共同富裕的中国式现代化要求,东西部协作机制需要释放“倍增效应”。为此,需要响应以巩固拓展脱贫攻坚成果同乡村振兴有效衔接为起点,以缩小东西部区域城乡差距和群体收入差距为导向,以协同推进全国统一大市场建设为路径,遵循共同富裕目标下东西部协作机制的重构逻辑,以东西部协作机制重构赋能乡村振兴与区域协调发展。新发展阶段,以东西部协作机制重构赋能共同富裕,要推动“产业+园区”协作治理模式提档升级,强化“消费+就业”协作治理模式创新,探索“资源+服务”协作治理模式。

欠发达地区布局建设未来产业的实践探索

前瞻布局建设未来产业,因地制宜发展新质生产力,是中国式现代化的必然选择。“十四五”规划正式提出布局未来产业以来,受前瞻性、颠覆性技术制约,欠发达地区对其鲜有布局。贵州“村超”以文化创意和数字商业模式为驱动,融合体育、文化、美食、表演等众多业态,探索了乡村振兴未来产业实践路径。欠发达地区发展未来产业,关键在于挖掘文化和生态旅游资源,推动欠发达地区数字化、绿色化和创意化“三化转型”,培育创意、电子商务和公共服务“三个生态系统”,激发创意活力,以价值共创助推优秀传统文化和生态旅游资源创造性转化,以东西部协作和对口支援进行人才和技术赋能,为欠发达地区注入未来产业新动能。

稳健驾驭:巨型工程的国家治理逻辑及其实现--以“西气东输”项目为例

巨型工程因其超大规模引发复杂性治理难题,需要国家的全面介入与稳健驾驭。西气东输工程的案例研究显示,超大的工程规模会导致决策的信息缺失与方案模糊问题,以及工程建设中的项目集成交互和多主体协同困境等治理难题。为解决这些难题,国家通过战略框定与工程目标建构,以国家意志塑造巨型工程战略纵深与社会合法性;通过方案最优化决策与群体智慧支持,以集体理性弥合理想最优方案与群体决策结果的差距;以领导小组统筹部署、高层权威推动和政治性协调,整合碎片化治理权威,形成有效的府际治理合力;通过国家主导的组织结构网络,国家权力深刻嵌入工程建设场域,以国家能力的积极运作实现管理协同。巨型工程的国家治理逻辑可概括为全面介入、战略统筹、稳健驾驭和有效治理,其研究有助于拓展巨型工程治理的国家理论,加深对中国巨型工程治理和决策过程的理解。

东西部协作和对口支援何以可能——基于新疆阿克苏市电商产业发展的案例分析

东西部协作和对口支援是解决我国区域性发展不平衡问题的重要手段。基于杭州帮扶阿克苏市乡村电商产业发展案例,在行动者网络理论基础上构建跨边界发展网络框架,以探求数字经济环境下东西部协作和对口支援的实践逻辑。研究发现,东西部协作和对口支援的实践逻辑表现为跨边界发展网络的构建,即通过主体融合、虚实融合、产业融合、点面融合的方式,打破组织边界、物理边界、产业边界和地理边界的束缚,实现施援方与受援方的良性互补,进而促进当地优势产业发展。

教育专项转移支付、财政压力与地方教育财政支出——来自中国职业教育“东西协作”政策的证据

基于中央对云南滇西十州市实行职业教育“东西协作”政策的准自然实验,采用双重差分估计检验专项转移支付对地方职业教育财政支出的影响。研究发现,政策为滇西地方政府的职业教育财政支出带来了“激励性”的引致效应。财政自给率越低的地方政府越容易与中央或上级政府的目标达成一致:在中央重视职业教育的目标下,地方政府将增加职业教育财政支出。异质性分析表明,这种“激励性”的引致效应会随着地方政府财政压力的上升而减弱。机制分析表明,政策引致的职业教育财政支出主要来自地方政府财政支出结构的调整以及从上一级政府中获得的一般性转移支付,地方政府通过以上两种渠道用以支付更多职业教育生均经费。

虚拟集聚能否促进城市绿色发展?

作为数字经济孵化出的产业组织新形态,虚拟集聚能否成为城市空间维度绿色发展的新引擎值得关注。本文基于2013—2020年中国279个城市的面板数据,利用区位熵和地理距离外溢衰减指数测度虚拟集聚水平,并系统考察了虚拟集聚在城市层面的环境效应。研究表明:虚拟集聚对城市绿色发展的影响呈现先抑制后促进的U型关系,且这一结论在一系列检验后依然稳健;技术创新、产业结构优化和市场整合是其影响路径。进一步分析发现:虚拟集聚对东部、中部地区以及城市群中城市绿色发展的U型影响更加显著;此外,虚拟集聚有效降低了省界城市的环境污染,成为破除边界污染的突破口。因此,本文建议加快核心数字技术创新,着力推动产业集群数字化转型;利用数字技术促进产业结构优化,破除市场一体化壁垒;因地制宜布局数字基础设施,加强网络基础设施建设,培育绿色发展新动能。

俄乌冲突下北极地区安全面临的新形势及对中国的影响

在俄乌冲突爆发前,北极已经呈现出“再军事化”愈演愈烈、北极东西方维持微妙平衡和域外国家大规模介入北极事务的态势。俄乌冲突发生后,北极地区受其影响,形势发生了多边合作机制破裂、北欧国家集体“北约化”打破北极东西方平衡、域外国家将在北极事务中发挥更大作用、美国的北极影响力迅速扩大等新问题。俄乌冲突也对中国在北极的活动造成了影响。美国将中国渲染成地缘政治威胁,歪曲中国北极形象,并与其他西方国家在北极事务中孤立俄罗斯,迫使中国站队,然而,北极合作机制的重建、北极东西平衡关系的修复,使得俄罗斯对华依赖加强,间接赋予了中国扩大参与北极事务的机遇。

数据中心发展进展

本文采用文献调研的方法,研究了中国数据中心在新型基础设施建设等策略下的市场规模与发展趋势,并对比了中外数据中心发展特点及政策导向。本文分析了近年来中国数据中心耗电量、算力规模、机架数等关键指标的变化趋势。结果表明:我国数据中心市场规模将保持持续增长态势,增长率将保持在20%以上。“东数西算”政策驱动下,未来数据中心将朝着高效化、大型化、绿色化的新兴数据中心发展。冷却技术的高速发展将助力数据中心能效不断提升,使电能使用效率降至1.1左右。