Electrochemical properties of ultra-long,aligned, carbon nanotube array electrode in organic electrolyte

The electrochemical properties of an electrochemical double-layer capacitor electrode based on an ultra-long (500 μm), aligned, carbon nanotube array (ACNTA) in Et₄NPF₆/propylene carbonate electrolyte are examined. The specific capacitance of the ACNTA electrode in an organic electrolyte is 24.5 F g⁻¹, which is larger than that obtained in an aqueous electrolyte. The results of ac impedance measurements show that the ACNTA electrode gives a high power density and an excellent rate capability in an organic electrolyte. It is shown that the ACNTA electrode has a lower equivalent series resistance and a better rate capability than activated carbon electrode. This is due to the fact that ACNTA possesses a larger pore size and a more a regular pore structure. Both these features are conformed by scanning electron microscopic and nitrogen gas adsorption studies.     

阳极炉重油供油机组的改造实践

着重介绍了改造前重油供油机组的工艺流程,并针对所存在的问题进行了分析、改进。     

Marmaray project: Tunnels and stations in BC contract

Istanbul is one of the most famous historical cities in the world. However, the project alignment selected as the best of a range of alignments cannot avoid passing beneath the historical and cultural heritages of Istanbul as well as under ancient and densely inhabited areas of the city. This paper will explain some of the challenges related to the bored tunnels.

Historical buildings are vulnerable. Yet many existing residential and office buildings are old and constructed on minimal foundations. As a consequence, it is vital that any drawdown of groundwater and any ground settlements have to be minimized.

In addition, the connection between the immersed and bored tunnels will be made directly and totally underground, without the usual intermediate shafts and beneath the deep waters of the Bosphorus Strait. This operation needs the utmost control of the tunnel excavation face to ensure its stability and to minimize water ingress. Based on such considerations, tunnel excavation by tunnel boring machine (TBM) using a slurry shield and having the ability to operate under high pore pressures was recommended as the method of excavation for the main running tunnels.

The paper will explain how the design team from Avrasyaconsult – the Employer’s Representative – arrived at the final minimum, specific and functional requirements of the bored tunneling works which are to be carried out using the ‘FIDIC EPC/Turnkey Project’ conditions.     

组合拱式管桥计算机模拟设计

本文在已有成果资料的基础上，为组合拱式管桥的设计建立了常规设计表达式，并研制出组合拱式管桥计算机模拟的程序软件ＣＡＰＢＤ。该软件具有以下计算功能：（１）计算组合管拱的几何特征参数；（２）计算组合管拱自重和组合拱式管桥的竖向荷载及其材料费用；（３）分析和计算各种载荷作用下组合拱式管桥的内力；（４）组合拱式管桥各控制截面强度校核、稳定性验算以及拱支墩稳定性验算和地基承载力强度校核。     

多站远程无线控制信号系统通信软件的开发

多站远程无线控制系统是以计算机为中心控制 ,用多个信号源作为下位机通过无线模块进行通信 ,文中介绍了通过无线数传模块实现无线通讯以及ActiveX控件的使用方法 ,提出了使系统应用程序更安全可靠 ,效率更高 ,维护更加方便的几种措施。     

振动沉管挤密碎石桩在闸基处理中的应用

振动沉管挤密碎石桩是近十几年来在挤密砂桩和振冲桩的基础上发展起来的地基处理新技术,具有设备简单、操作方便、成本低、施工快、无污染等特点，被工程界广泛使用，积累了一定的工程经验。其在共产主义闸地基处理中的应用即为一例。     

首钢6H3C单机架可逆式薄板冷轧机组技术特点

首钢6H3C单机架可逆式冷轧机组是目前世界上第一套通过中间辊交叉进行板型控制的轧机．也是世界上第一套投入工业生产的6H3C轧机。本文介绍了该机组的工艺、设备参数，技术特点，电气设备及自动化控制及生产状况，并提出了该机组可能存在的问题。     

断陷盆地洼陷带岩性油气藏成藏动力学模式——以济阳坳陷为例

以济阳坳陷为例，运用成藏动力学理论，分析了断陷盆地洼陷带岩性油气藏的成藏过程。研究结果表明，成藏动力贯穿于油气成藏的全过程，油气运移和聚集的原始动力是烃源岩内的孔隙流体压力；油气成藏的主控因素为烃源岩、输导体系和成藏动力；成藏动力学模式为应压双控、复合输导及幕式置换。     

Talbot效应研究新进展

综述了对Ｔａｌｂｏｔ效应研究的进展，着重介绍了对它的新解释。     

用过零时间法分析的中能重离子探测器望远镜

本文描述了中能重离子探测器望远镜ＮＥ１０２Ａ＋ＣｓＩ（Ｔｌ）＋ＰＭＴ采用过零时间的方法鉴别粒子，实验结果表明可清楚地分辨ｐ、ｄ、ｔ同位素和探测到的全部碎片。