某微细粒铁矿石选矿磨矿工艺对比试验

文章介绍了为回收利用某微细粒铁矿石中的铁,进行了原矿磁选抛尾-球磨-弱磁选-球磨-弱磁选试验(方案Ⅰ)和原矿磁选抛尾-球磨-弱磁选-塔磨-弱磁选试验(方案Ⅱ)两个工艺方案试验研究。结果表明,方案Ⅱ铁精矿品位略高于方案Ⅰ,说明塔磨机磨矿产品单体解离度略优于球磨,可为该铁矿石的开发利用提供一定的指导作用。     

某铜矿铜硫尾矿回收白钨选矿试验

介绍了某铜矿铜硫浮选尾矿回收白钨的选矿试验。试验对粗选和精选流程及粗选设备进行了多方案对比，选择了最佳方案。在完成小型试验后又完成了扩大试验，为建厂投产提供了可靠依据。     

自卸车元宝梁断裂分析

介绍了重型自卸卡车常用元宝梁断裂的分析方法,针对在汽车试验场试验的元宝梁进行了应变应力测试,用三维建模软件CATIA对元宝梁建模,用有限元分析软件ANSYS进行分析,并进行了结构优化设计,从众多方案中选出两种理想的方案,制作样件,并在试验场进行了坏路试验,效果良好。     

无肥煤炼焦和高炉冶炼试验

一、无肥煤炼焦情况唐山地震后,开滦肥煤供应中断,为救燃眉之急,紧急进行了无肥煤炼焦的工业生产试验。试验情况见表1。试验在三炼焦进行,该车间的焦炉炉令已有二十一年,炉体状况不好。进行第一方案试验时,推焦有些困难;试验第二方案时,推焦严重困难,被迫中止。试验证明,第二方案这样的配煤比,对三炼焦来说,由于     

提高配煤挥发份增加气煤配用量的大炉炼焦试验

为提高配煤挥发份,我厂今年进行了四个配煤方案的试验,所得焦炭质量良好。考虑到国家对今后几年用煤基地定点的要求,需要继续进行生产试验,以求得合理用煤的方案。同时,为了配合平顶山煤田的调查,对今后使用平顶山煤提供配煤参考数据,在最后三个方案中进行了模拟试验,并与去年的试验结果作了多方面的比较。 (一)试验情况试验在2号焦炉进行,自2月27日至3月24日共计26天,除第七方案生产二天外,其他皆生产了3～5天,焦炉按正常生产制度进行,周转时间规定为18小时,主要采用高炉煤气加热(混入少量焦炉煤气),规定之标准温度,机侧为1180～1185℃,焦侧为1225℃。过去2号炉炉头温度一直偏低,尤其在机侧炉头温度     

大型火电机组汽机侧的综合节能改造

分析了某大型火电机组汽机侧的现状,对汽机侧进行了全面性能诊断试验,并依据试验系统提出了汽机侧的综合节能改造技术方案。根据提出的技术方案,对汽机侧实施了节能改造,取得了较好的节能效果和经济效益,降低了生产成本。     

精炼炉铬尘处理方案实践效果

通过对精炼炉铬尘的分析,制定出了"收集、贮存、成球"的铬尘处理方案,并将经过处理的精炼炉铬尘进行了工业性生产试验。试验结果表明,该精炼炉铬尘处理方案,不仅极大地改善了生产环境,而且增加了经济效益。     

烧结厂消化炼钢污泥的研究与实践

简要介绍了消化炼钢污泥的工艺方案，此方案简单易行、稳定可靠。在此基础上进行了工业性试验，取得了较好效果。     

一次成型的多层卷焊管的试验研究

介绍了４层卷焊管的卷曲方法以及孔型设计的方法，通过对１０机架成型机组卷曲４层卷焊管的试验分析了影响多层卷焊管成型的因素，提出了成型力能参数的测试方案和观察试验方案，对试验结果进行了分析。并根据试验结果，对４层卷焊管的孔型设计提出了若干改进方法。     

管式辐射换热器试验研究

本文设计了管式辐射换热器试验样机与试验装置,对3种不同方案进行了冷、热态试验,对换热器的阻力特性,综合传热系数,管壁温度进行了研究.     

中国钨矿选矿的百年变迁

中国的钨矿床发现百年,钨矿选矿经历了从手拣露头块钨、简单人工淘洗、引入简单机械选矿到大规模规范流程机械化选矿,从单一重选发展成重选-磁选-电选-化选多种方法相结合、综合回收钨矿中多种金属矿物的新型选矿工艺,展现了中国钨矿选矿百年发展的非凡历程。     

Adaptive memory: Determining the proximate mechanisms responsible for the memorial advantages of survival processing.

J. S. Nairne, S. R. Thompson, and J. N. S. Pandeirada (2007) suggested that our memory systems may have evolved to help us remember fitness-relevant information and showed that retention of words rated for their relevance to survival is superior to that of words encoded under other deep processing conditions. The authors present 4 experiments that uncover the proximate mechanisms likely responsible. The authors obtained a recall advantage for survival processing compared with conditions that promoted only item-specific processing or only relational processing. This effect was eliminated when control conditions encouraged both item-specific and relational processing. Data from separate measures of item-specific and relational processing generally were consistent with the view that the memorial advantage for survival processing results from the encoding of both types of processing. Although the present study suggests the proximate mechanisms for the effect, the authors argue that survival processing may be fundamentally different from other memory phenomena for which item-specific and relational processing differences have been implicated. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

铜带边部精整处理装备和技术的开发

目前国内外已有相关专家对变压器绕组的铜带边部精准处理进行了相关研究,但是对精准处理装备和处理技术没有涉及,本文分析了铜带边部精准处理情况,"五位一体"铜带边部处理精整处理装备的工作运行方式,该处理装置实现了对铜带边部缺陷的处理,为变压器绕组的安全稳定运行提供了技术支持。     

Local and global cross-modal influences between vision and hearing, tasting, smelling, or touching.

It is suggested that the distinction between global versus local processing styles exists across sensory modalities. Activation of one-way of processing in one modality should affect processing styles in a different modality. In 12 studies, auditory, haptic, gustatory or olfactory global versus local processing was induced, and participants were tested with a measure of their global versus local visual attention; the content of this measure was unrelated to the inductions. In a different set of 4 studies, the effect of local versus global visual processing on the way people listen to a poem or touch, taste, and smell objects was examined. In all experiments, global/local processing in 1 modality shifted to global/local processing in the other modality. A final study found more pronounced shifts when compatible processing styles were induced in 2 rather than 1 modality. Moreover, the study explored mediation by relative right versus left hemisphere activation as measured with the line bisection task and accessibility of semantic associations. It is concluded that the effects reflect procedural rather than semantic priming effects that occurred out of participants' awareness. Because global/local processing has been shown to affect higher order processing, future research may activate processing styles in other sensory modalities to produce similar effects. Furthermore, because global/local processing is triggered by a variety of real world variables, one may explore effects on other sensory modalities than vision. The results are consistent with the global versus local processing model, a systems account (GLOMOsys; F?rster & Dannenberg, 2010). (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Gender differences in implicit and explicit processing of emotional facial expressions as revealed by event-related theta synchronization.

Emotion information processing may occur in 2 modes that are differently represented in conscious awareness. Fast online processing involves coarse-grained analysis of salient features and is not represented in conscious awareness; offline processing takes hundreds of milliseconds to generate fine-grained analysis and is represented in conscious awareness. These processing modes may be studied using event-related electroencephalogram theta synchronization as a marker of emotion processing. Two experiments were conducted that differed on the mode of emotional information presentation. In the explicit mode, subjects were explicitly instructed to evaluate the emotional content of presented stimuli; in the implicit mode, their attention was directed to other features of the stimulus. In the implicit mode, theta synchronization was most pronounced in the early processing stage, whereas in the explicit mode, it was more pronounced in the late processing stage. The early processing stage was more pronounced in men, whereas the late processing stage was more pronounced in women. Implications of these gender differences in emotion processing for well-documented differences in social behavior are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

我国铜加工技术的发展现状

改革开放以来，我国铜加工行业引进设备和技术改造同步进行，取得了显著成绩，铜加工技术有了较大的发展，笔者结合国外先进铜加工技术的发展情况，对我国铜加工技术的发展现状进行了分析，并提出了我国铜加工技术今后的发展方向。     

机械制图一体化在金属加工设备运行中的应用

传统金属加工设备存在持续运行连贯性较差的缺陷,以此开展了基于机械制图一体化技术的金属加工设备运行设计。引入积木式机体安装方法,设计金属加工设备运行机体,设计设备加工金属过程,控制金属加工设备电气运行方式,设计设备固焊流程。提出对比实验,验证提出设备可提升金属加工设备运行的连贯性,更具备市场经济效益。     

Simultaneous and successive processes, language and mental abilities.

Recent research on simultaneous and successive processing is reviewed as these processes relate to certain linguistic functions and mental abilities. In comprehending ambiguous sentences, successive processing appears to be involved in surface structure and underlying structure ambiguities, whereas simultaneous processing is related to lexical ambiguity. Successive processing is also involved in the syntactic organization of expressive speech. Several studies reported here suggest that in reading, successive processing is important for the development of elementary decoding skills, whereas simultaneous processing is related to the development of advanced levels of comprehensive skills. In terms of abilities, simultaneous processing was significantly related to spatial ability, inductive reasoning, and associative memory, while successive processing was significantly related to associative memory. (French summary) (42 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

高功率激光加工技术的应用

激光加工代表着当今材料加工业的发展方向,具有其他加工方法所不可比拟的特点。文章对激光加工技术理论进行了简述,并对在马钢成功的实践案例进行了描述。     

济钢发展钢材深加工产业的探索

当前钢材深加工产业存在材料型深加工、营销型深加工、产业型深加工3种发展模式。济钢现阶段钢材深加工产业规模较小,产品档次较低。提出了济钢未来钢材深加工产业应该在资源整合、延伸产业链的基础上,重点开拓产业型深加工、发展新兴产业中的高端装备等领域。