断层破碎带巷道掘进技术

陈四楼煤矿在F39断层破碎带掘进过程中，先后发生2次突水冒顶后，多次采用强行通过都未成功。介绍了西行绕道施工方案后的爆破注浆加固、马蹄形导硐爆破掘进技术，达到破碎带施工的安全、优质、高效的目的。     

Environmental and economic assessment of the chemical absorption process in Korea using the LEAP model

CO₂ emission from fossil fuels is a major cause for the global warming effect, but it is hard to remove completely in actuality. Moreover, energy consumption is bound to increase for the continuous economic development of a country that has an industrial formation requiring high-energy demand. Therefore, we need to consider not only a device for CO₂ mitigation but also its impact when a CO₂ mitigation device is applied. The device for CO₂ emission mitigation can be classified into three fields: energy consumption reduction, development of CO₂ removal and recovery technology, and development of alternative energy technology. Among these options, CO₂ removal and recovery technology has a merit that can be applied to a process in the near future. Therefore, research for CO₂ removal and recovery is actively progressing in Korea. In this study, environmental and economic assessment according to the energy policy change for climate change agreement and increase of CO₂ mitigation technology is accomplished, on the bases of operating data for the CO₂ chemical absorption pilot plant that is installed in the Seoul coal steam power plant. The Long-range Energy Alternatives Planning system (LEAP) was used to analyze the alternative scenario, and results were shown quantitatively.     

调顶技术及其在波分复用光纤通信系统中的应用

给出了调顶技术对光纤通信系统误码特性影响的简单理论估计和实测结果：调顶深度小于５％时,调顶对系统接收机灵敏度的影响小于０．５ｄＢ。将专门研制的实用化调顶盘和解调顶盘用于实际的８信道ＷＤＭ光纤通信系统中,能准确判断各信道的有无及其光功率的相对变化,并据此实现了ＥＤＦＡ的增益箝制。     

柯克亚凝析油气田先导试验区循环注气开发

柯克亚凝析油气田西五一(3)凝析油气藏循环注气先导试验区从1994年9月2日开始注气,至1999年6月结束,累积注气382ｘ108ｍ3,累积采气3．47ｘ105ｍ3,注采比1．05,累积采凝析油6．83ｘ104ｔ．循环注气维持了地层能量,遏制了地下反凝析的进一步恶化,改善了地层的渗流能力,大大提高了凝析油的采收率。截止到1999年6月,凝析油采出程度达38．6％,比衰竭式开发的采收率提高17．6个百分点,开发效果良好。     

浅议萍乡市全域推广海绵城市建设的问题与对策

萍乡完成海绵城市建设试点后,全面贯彻海绵城市理念,全域推广海绵城市建设。本文基于萍乡市海绵城市试点建设实践经验,对萍乡市全域推广海绵城市建设工作进行了研究,发现所辖县海绵城市推进工作进度较慢,存在项目建设片面化、碎片化,部分海绵设施施工质量不合格等问题。经过对比分析这些问题存在的主要原因,结合萍乡市海绵城市试点建设的成功经验和全域推广海绵城市建设的工作实际,进而提出了3项对策与建议,希望能为萍乡市全域推广海绵城市建设工作提供有益借鉴,同时为当前系统化全域推进海绵城市建设示范工作提供参考。     

Studies of key technologies for large area CdTe thin film solar cells

The structure and main manufacturing technologies of CdTe film solar cells of large area are reviewed. Among the technologies, some have been developed for application in a pilot manufacturing line. The high resistant SnO₂ (HRT) thin films have been fabricated by PECVD. The effects of annealing on the structure and properties have been studied. A surface etching process of CdTe in low temperature and lower concentration of nitric acid has been developed. The Cd_1 − xZn_xTe ternary compound films have been studied. In order to improve the back contact layer, Cd_0.4Zn_0.6Te layer with 1.8 eV band gap as a substitute for ZnTe layer is introduced in CdTe cells. The effects of the technologies on performance of CdTe cells and feasibility of application in the modules are discussed.     

Energy landscape analysis for regulatory RNA finding using scalable distributed cyberinfrastructure

We investigate the folding energy landscape for a given RNA sequence through Boltzmann ensemble (BE) sampling of RNA secondary structures. The ensemble of sampled structures is used to derive distributions of energies and base‐pair distances between two configurations. We identify structural features that can be utilized for RNA gene finding. Characterization of the EL through BE sampling of secondary structures is computationally demanding and has multiple heterogeneous stages. We develop the Distributed Adaptive Runtime Environment to effectively address the computational requirements. Distributed Adaptive Runtime Environment is built upon an extensible and interoperable pilot‐job and supports the concurrent execution of a broad range of task sizes across a range of infrastructure. It is used to investigate two RNA systems of different sizes, S‐adenosyl methionine (SAM) binding RNA sequences known as SAM‐I riboswitches, and the S gene of the bovine corona virus RNA genome. We demonstrate how the implementation lowers the total time to solution for increases in RNA length, the number of sequences investigated, and the number of sampled structures. The distributions of energies and base‐pair distances reveal variations in folding dynamics and pathways among the SAM riboswitch sequences. Our results for BCoV RNA genome sequences also indicate sensitivity of folding to coding‐neutral variations in sequence. We search for a characteristic motif from within the SAM‐I consensus structure – a four‐way junction, among BE sampled structures for all 2910 SAM‐I sequences identified from Rfam (the curated ncRNA family database). We find that BE sampling provides insight into the variations in conformational distribution among sequences of the same ncRNA family. Therefore, BE sampling of secondary structures is a viable pre‐processing or post‐processing tool to complement comparative sequence analysis. The understanding gained shows how appropriately designed cyberinfrastructure can provide new insight into RNA folding and structure formation. Copyright © 2011 John Wiley & Sons, Ltd.     

天津自贸区组织机构及经济变化分析

本文将针对天津自贸区成立后一年半以来的各类组织机构代码的主要特征和发展变化情况进行分析和研究。本文首先介绍了自贸区组织机构整体发展情况,并在此基础上,通过对不同片区、重点领域的组织机构的详细分析、以及与上海自贸区的对比来展示自贸区成立一年半来所取得的成果。     

上海自贸区对张家港市的影响及对策分析

中国（上海）自由贸易试验区的成立,给张家港市带来了新的发展契机.通过对上海自贸区实施方案的主要内容进行概括归纳,综合分析了张家港市面临的机遇和挑战.为充分发挥上海自贸区的辐射带动作用,从发挥港口优势、利用财政政策、完善基础设施、加强对外贸易四方面提出了相关应对策略.