Study on combustion characteristics of blended coals

Power plants in China have to burn blended coal instead of one specific coal for a variety of reasons. So it is of great necessity to investigate the combustion of blended coals. Using a test rig with a capacity of 640 MJ/h with an absolute milling system and flue gas online analysis system, characteristics such as burnout, slag, and pollution of some blended coals were investigated. The ratio of coke and slag as a method of distinguishing coal slagging characteristic was introduced. The results show that the blending of coal has some effect on NO _x but there is no obvious rule. SO _x emission can be reduced by blending low sulfur coal. Translated from Proceedings of the CSEE, 2005, 25(18): 97–103 [译自: 中国电机工程学报]     

Predictors of outcome in LAAM, buprenorphine, and methadone treatment for opioid dependence.

This study examined (1) predictors of treatment outcome for opioid-dependent participants in a single-site controlled trial comparing methadone, buprenorphine, and LAAM treatments and (2) the extent to which various subpopulations of patients may have more successful outcomes with each medication. The relationships between patient demographics, drug use history, and psychological status and outcome measures of treatment retention, opiate use, and cocaine use were assessed. We believe this study to be the first to demonstrate that predictors of treatment success appear to be largely similar in LAAM, buprenorphine, and methadone treatment for opioid dependence. We did not find any factors that would strongly guide selection of one medication over others. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

连续蒸煮器内洗涤结合器外扩散洗涤的应用

连续蒸煮器内洗涤结合器外扩散洗涤，具有洗涤时间长、洗涤效率高、提取黑液浓度高、浆层厚度均匀、浆层结构组织和浓度一致等特点，运行可靠，易于自动化控制，实现了洗涤用水的封闭循环。     

巧用心理暗示提升高校图书馆服务质量

心理暗示是用含蓄、间接的方法,在无对抗的条件下,对人的心理和行为产生影响的过程。在高校图书馆的读者服务工作中,馆员们若能遵循目的性、权威性等原则,灵活掌握和运用言语暗示、行为暗示、环境暗示等方法,就能更好地利用心理暗示的积极作用,提升服务质量。     

胶凝砂砾石坝材料特性研究及工程应用

本文阐述了胶凝砂砾石坝的起源和发展情况。根据福建街面水电站下游围堰的施工要求，即施工期作为挡水堰，运行期作为量水堰，设计了围堰坝体的断面，对堰体的应力、稳定和渗流进行了分析，提出了材料的性能参数要求，并探讨了胶凝砂砾石材料的渗透溶蚀性能。研究结果表明，采用当地天然砂砾石，掺入水泥和粉煤灰各40kg/m3，其180d龄期抗压强度等级可达到C7.5，并满足围堰的力学、稳定、防渗和抗溶蚀要求，缩短了工期，降低了造价。     

唐山建龙900mm冷轧机组的工艺与设备

较系统地介绍了我国第1条国产化的中宽带钢冷连轧生产线，即唐山建龙钢铁控股有限公司900mm冷连轧生产线的工艺流程、主要设备组成及技术特点。重点介绍了900mm 4机架六辊轧机的技术参数、性能特点及自动控制系统。该生产线投产以来，取得了较好效果。     

Influence of Ti Powder Characteristics on Combustion Synthesis of Porous NiTi Alloy

Porous NiTi shape memory alloy (SMA) is a novel biomedical material used for human hard tissue implant .The influence of elemental titanium powder characteristics such as powder morphology, particle size and specific surface area( SSA) on the minimal ignition temperature ,combustion temperature and final product of porous Ni-Ti SMA fabricated by combustion synthesis method was investigated in this paper by scanning electron microscopy (SEM) and laser diffraction.The preliminary data indicated that the titanium powder characteristics had a strong effect on combustion synthesis of porous NiTi SMA.     

电加热柔性连续抽油杆动态特性的计算机模拟

根据电加热柔性连续抽油杆的特性、参数及井下基本工况,建立了三级混合抽油杆柱的有限元模型。运用有限元软件对混合杆柱的动态特性进行计算机模拟,得到各关键点位移、速度随时间变化曲线,以及计算机模拟的地面示功图,为抽油机、抽油杆设计和井下故障诊断提供理论依据。与传统电加热空心抽油杆相比,电加热柔性连续抽油杆在降载和节能方面优势显著。     

导电聚苯胺在微波场中的升温特性

本文研究了微波辐照下导电聚苯胺的升温特性。研究表明 ,导电聚苯胺在微波场中具有快速升温的特点 ,升温速度与掺杂剂的种类、掺杂酸的浓度、聚苯胺的导电率、合成聚苯胺的温度等因素有关。盐酸掺杂聚苯胺热稳定性较差 ,在微波场中不能反复升温 ,而热稳定性较好的DBSA掺杂的聚苯胺具有一定的反复升温能力     

城市环境的影响与作用

揭示了城市环境的基本性质的基本特征，研究了城市环境对人的心理影响和生理影响。指出城市环境建设不公要满足人的物质需要，还要满足人的精神需要。