宜兴抽水蓄能电站不良地质条件下的岩锚梁开挖

江苏宜兴抽水蓄能电站地下厂房岩锚梁座落在岩石条件较差的砂岩地层，在施工中通过采用合理的措施、先进的技术、精心组织、精心施工、严格控制质量，使岩锚梁成型良好，取得了理想的效果。     

基于人工神经网络的粉煤灰科学分类

针对目前国内粉煤灰分类的片面性，结合人工神经网络理论，提出了基于人工神经网络的粉煤灰科学分类．该方法充分考虑了粉煤灰的火山灰活性，并考虑了细度、玻璃体、烧失量、K2O、SO3和CaO多种因素对分类的影响．实例表明，按本文提出方法建立的网络模型较合理，且其精度也较高，克服了以往分类法的片面性，较全面地反映了粉煤灰的品质性能，从而为粉煤灰的多元化利用奠定基础．     

基于VB的OLE自动化编程技术及其应用

介绍了OLE自动化技术的基本原理、Excel对象的结构，利用OLE自动化技术在VB中使用Excel对象。并将该技术应用于某单位的报表管理系统的开发，取得了良好的效果。     

网络化仪器数据安全探讨

本文分析了保护仪器网络中数据安全的措施,着重介绍了数据加密的几种方法。分析比较了对称式算法和非对称式算法,最后通过对称加密和非对称加密相结合的方案在某导弹网络加密部分的实现,具体说明数据加密在仪器网络化中的应用。     

An improved modeling of precipitation phase and snow in the Lancang River Basin in Southwest China

Precipitation phase(e.g., rainfall and snowfall) and snow(e.g., snowpack and snowmelt runoff) in high-mountain regions may largely affect runoff generation, which is critical to water supply, hydropower generation, agricultural irrigation, and ecosystems downstream. Accurately modeling precipitation phase and snow is therefore fundamental to developing a better understanding of hydrological processes for high-mountain regions and their lower reaches. The Lancang River(LR, or the Upper Mekong River)in China, among the most important transboundary rivers originating from the Tibetan Plateau, features active dam construction and complex water resources allocation of various stakeholders in Southeast Asian countries under climate change. This study aims to improve precipitation phase and snow modeling for the LR basin with a hydrological model and multisource remotely sensed data. Results show that joint use of the Moderate Resolution Imaging Spectroradiometer(MODIS) land surface temperature product with high spatial resolution(1 km×1 km) and an air temperature product can more precisely distinguish precipitation phase than air and wet-bulb temperature products in the LR basin. Snowfall and snowmelt were found to be controlled primarily by rainfall and snowfall temperature thresholds in snow modeling. The rainfall and snowfall temperature thresholds derived from the hydrological model through calibration with remotely sensed snowpack at basin scales were considerably lower than those derived from in situ observations. Rainfall and snowfall temperature thresholds derived from in situ observations could lead to the overestimation of snowmelt runoff due mostly to the lack of representation of point-based measurements at basin scales. This study serves as a basis for better modeling and predicting snow for the LR basin and potentially other similar basins globally.     

Alignment of primary Al<Subscript>3</Subscript>Ni phases in hypereutectic Al-Ni alloys with various compositions under high magnetic fields

Al-Ni hypereutectic alloys with various compositions were solidified under various magnetic field con- ditions to investigate the alignment of primary Al3Ni phases. The results showed that the application of high magnetic fields could improve the homogeneity of the primary Al3Ni phase distribution and induce the alignment of primary Al3Ni phases in the direction perpendicular to the magnetic field direction to form chain-like structures. However, the alignment was different from the orientation of the Al3Ni...