安钢3#高炉大喷煤量探索

安钢3^#高炉采用全烟煤喷吹。提高煤粉燃烧率、维持适宜的理论燃烧温度、保证煤气流的合理分布是提高喷煤比的关键。本文介绍安钢就如何提高3^#高炉喷煤量及大喷煤量下的高炉操作进行探索并取得了良好技术指标（煤比提高24kg／t，焦比降低了43kg／t）的生产实践。     

Application of K008 camera in diagnostics of shock and detonation waves

Results of tests of the K008 camera to determine its resistance to the action of factors that accompany gaseodynamic experiments, such as powerful electromagnetic, acoustic, and optical interference, and its application as a component of laser Doppler velocity meters of objects thrown by an explosion are presented. __________ Translated from Izmeritel’naya Tekhnika, No. 5, pp. 46–49, May, 2007.     

Analysis of Heat Transference in Regenerative Exchanger of a Thermal Power Plant

The process of electricity generation in a power plant involves several phases for heat exchange generally between hot fluid (water, fumes of steam) and one of the input fluids (cool water, cook oven gas, fuel, blast furnace gas, etc) The process of exchange evolves in time at the same time as installation itself. This improvement is another step in a deep study of the time-changing conditions of the heat transmission due to ageing, but it will also make possible the introduction of new parameters in the physical formulation whose relation is unknown. Modelling is done using feedforward neural networks after a very extensive pre-processing step.     

图中含有k—因子的判定算法

本文依据图论中已有的一个理论成果（定理１），给出了判定一个图是否含有k-因子的一个算法，同时对算法的复杂性作了分析，又示出了一些简单情况的结果。     

Effect of oxidation on the performance of low-temperature petroleum cokes as anodes in lithium ion batteries

The effect of an oxidative treatment on the electrochemical performance of various low-temperature cokes as anodes in lithium ion batteries was examined in order to optimize their chemical composition and textural properties. Annealing in a stream of dry synthetic air over short time and temperature ranges was found to result in substantially increased cell capacity and improved capacity retention during cycling in coke oxidized at 350 °C for 1 h, which exhibited a capacity as high as 385 mAh g⁻¹ after 20 cycles at C/50. However, raising the oxidation temperature to 500 °C resulted in undesirably increased irreversible capacity and polarization between the charge and discharge branches, the effect being confirmed by the high impedance values obtained after only a few cycles. ⁷Li MAS NMR spectroscopy was used to assess covalency in lithium bonds and its relationship to electrochemical performance in the studied batteries.     

我们需要什么样的毕业生?——我国建筑教育问题谈

本文通过分析大学生毕业在刚刚步入工作岗位时存在的一些通病,指出现今的建筑教育中的弊端是造成这种现象的原 因。并进一步提出对教育体制的改革建议。     

超大规模无线网络规划

就如何对超大GSM无线网络建设改造的前期规划工作提出一些观点和方法,并对整个规划流程分步进行了描述。涉及的主要内容有业务预测的方法和步骤、建设规模确定的方法和步骤、各种网元规划方法及原则等。     

From ELF to Compressibility in Solids

Understanding the electronic nature of materials’ compressibility has always been a major issue behind tabulation and rationalization of bulk moduli. This is especially because this understanding is one of the main approaches to the design and proposal of new materials with a desired (e.g., ultralow) compressibility. It is well recognized that the softest part of the solid will be the one responsible for its compression at the first place. In chemical terms, this means that the valence will suffer the main consequences of pressurization. It is desirable to understand this response to pressure in terms of the valence properties (charge, volume, etc.). One of the possible approaches is to consider models of electronic separability, such as the bond charge model (BCM), which provides insight into the cohesion of covalent crystals in analogy with the classical ionic model. However, this model relies on empirical parametrization of bond and lone pair properties. In this contribution, we have coupled electron localization function (ELF) ab initio data with the bond charge model developed by Parr in order to analyze solid state compressibility from first principles and moreover, to derive general trends and shed light upon superhard behavior.