最理想的铝电解槽槽膛形状设计

众所周知,在铝电解生产过程中,铝电解槽的产量及使用寿命取决于所限定槽膛形状的伸退条件。借助于模拟物理模型,根据电解槽的工艺及几何数据,我们可以获得铝液与电解质界面上质量传递强度的定量关系。根据这些结果,使用侧插自焙烧阳极电解槽热力学条件的数学模型,我们研究并已在氮化铝“伸腿”人造电绝缘的电解槽上进行了实际应用,这样可集中阴极和阳极的电流。我们还研究了电流为76KA的电解,该电解槽具有最佳的槽膛形状、安装技术、焙烧及启动条件。同时,我们还对试验及正在运行的电解槽热力场的条件进行了分析。把一定数量的铜放入铝液中,与该厂持续5年所完成的平均统计数据相比,电流效率增加5．8％。     

内衬结构更改对槽龄影响及对策

我厂106XA电解槽，基建时曾采用三种不同的内衬结构，自1992年陆续大修以来，内衬结构又作过四次较大的更改，就上述不同的内衬结构对槽龄的影响究竟如何？本文作了粗浅的分析，并就存在问题提出了相应对策．     

云铝公司电解槽槽龄突破3653天

7月15日,云南铝业股份公司186 kA系列首台"长寿之星"电解槽211#槽诞生,该槽于2002年7月15日启动,目前已经运行了3 653天,槽龄突破10年;300 kA系列诞生的首台高龄槽815#槽于7月17日率先突破3 000天大关。目前,两台高龄槽槽况基本稳定,运行状况良好。随着槽龄的不断增加,电解槽的安全运行风险     

五槽银电解槽的设计与实践

五槽银电解槽用于粗银的精炼,它机构完善,功能齐全。本文着重介绍它的技术胜能、主要机构的设计、运转情况及今后设计的设想。     

新型阴极结构电解槽铝电解试验

针对传统铝电解槽极距已经达到低限,槽电压不能大幅度降低的关键技术难题,提出一种新型阴极结构铝电解槽.介绍了这种新型阴极结构电解槽的特点和工艺技术特征,以及在重庆天泰铝业公司168 kA电解槽上进行工业电解槽试验的结果.统计期内3台试验电解槽平均槽电压为3.803 V,平均直流电耗比同系列其他127台传统电解槽低1 250 kW · h/t Al,达到1 2101 kW · h/t Al.     

高效低耗长寿命铝电解槽的综合技术开发与应用

通过研究公司186kA和300kA铝电解槽寿命与大修数据,系统分析了电解槽阴极破损产生的原因,介绍了我公司在延长槽寿命方面应用过的技术成果及正在开展和即将开展的科技攻关内容,确定了我公司未来在延长高效低耗铝电解槽寿命技术攻关的目标：电流效率不低于94．5％、吨铝直流电耗低于12000kW·h,电解槽平均寿命2500～2800d。     

大型铝电解槽槽壳结构变形与槽寿命关系及校正措施论述

随着现代铝电解槽的工艺装备技术向着大容量、高效节能型的方向发展.本文概述总结了铝电解槽现有结构的特点及存在的问题,并结合生产运行过程中所涌现的大面槽壳侧板起拱变形、小面钢板上抬及摇篮架关键位置焊缝缺陷等情况,以槽内衬阴极炭块应力模拟仿真分析影响槽壳变形的因素与槽壳校正修复措施.     

铝电解新型隋性阴极研究

本文介绍了独特的振动成型方法,成功了研制出ＴｉＢ２－Ｃ惰性阴极,不脱层,效果持久良好,效益明显,为国内外首创。     

预焙铝电解槽槽型选择

通过对200kA,230kA,280kA,320kA铝电解槽性能及生产技术经济指标的分析对比，阐述了山西铝厂三期电解铝项目的槽中选性。     

论铝电解自焙槽改预焙槽的可行性

进入９０年代，我国铝工业以年增长率２０％的速度迅猛发展，１９９７年铝产量已达２１０万ｔ，但我国铝产量中约一半是由工艺落后的自焙槽生产的。自焙槽吨铝排氟量２０ｋｇ（其中９０％为ＨＦ气体）、沥青焦油８０ｋｇ、粉尘３０ｋｇ。至目前为止尚无合理可靠的治理方法...     

The relationship between information processing and language production.

We explored the relationships between information processing and language in order to further the understanding of language disturbances in psychiatric patients. To assess the impact of reduced processing capacity on language, 50 undergraduates completed an interview concurrent with a category monitoring task and a control interview without a concurrent task. Syntactic complexity, verbosity, and pause patterns were all disrupted by a reduction in processing capacity. In addition, individual differences in syntactic complexity and information processing were significantly associated, even after accounting for verbal intelligence. We discuss the relevance of the results for understanding language disturbances in psychopathology and hypothesize that a reduction in processing capacity may underlie the decreased syntactic complexity, decreased verbal output, and increased pause length found in schizophrenia. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

炼铜厂生产决策数学模型

利用冶金热力学及反应工程学的基本原理,分析了炼铜厂生产过程中SO2废气排放量和能源成本两大决策目标体系,采用全息仿真数学模型的建模方法,建立了炼铜厂生产决策数学模型.实际生产表明,该套数学模型可靠性和准确性较高,并具有较强的实用性.     

The relationship between lipid peroxidation and life span in Drosophila melanogaster

Using Drosophila lines pre-selected for adaptive characters, studies have been made on the relationship between the intensity of lipid peroxidation and life span in flies of different genotype, age and physiological condition. It was shown that the intensity of lipid peroxidation depends mainly on different factors (sex, age, virginity) in different lines. No expected negative correlation was found between the level of lipid peroxidation and life span in hybrids between two inbred lines. The intensity of lipid peroxidation was inherited like a dominant character, the dynamics of aging--like a codominant one in females and superdominant in males. Both the level of lipid peroxidation and life span appeared to be sex-dependent characters.     

天然气应用于铝焙烧预焙阳极的效益分析

针对目前国内铝用预焙阳极焙烧炉常用燃料(人工煤气、重油和天然气),从直接经济效益、间接效益和社会环保效益方面进行了对比分析,得出了"铝用预焙阳极焙烧采用天然气做为燃料是最为理想"的结论。     

GL190kA大型预焙阳极铝电解的技术创新实践

GL190kA大型预焙阳极铝电解槽是我国较早投入生产运行的大型预焙铝电解槽系列之一,本文着重阐述了在该系列上进行的多项创新技术以及实践生产情况。     

大型预焙电解槽内衬结构对内衬破损和寿命的影响

文章详细分析了不同类型的槽内衬结构对槽内衬破损和寿命的影响，并对造成槽内衬破损的各种因素进行了分析和探讨。     

The relationship between cardiac reactivity in the laboratory and in real life.

Objective: An excessive cardiovascular response to acute stress is a probable risk factor for cardiovascular (CV) disease. Such reactivity is usually assessed from the CV response to laboratory stressors. However, if it is a risk factor, correlated responses must occur in real life. Design: In the present study, we investigated the relationship between the heart rate (HR) response to five laboratory stressors and HR reactivity in the field. Measures: HR variation, the response to a real life stressor (public speaking), and the increase in HR with periods of self-reported tense arousal. Ambulatory HR, activity and posture were measured continuously over a 7-hr period. Results: The HR increase to laboratory stressors did not relate to HR variation consistently, but it did relate to the other two field measures. Conclusion: The results suggested that a tendency to increased HR reactivity may be a risk factor for cardiovascular disease when combined with exposure to stress. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The relationship between retirement life cycle changes and older men's labor force participation rates

This study probes the utility of older men's labor force participation rates (LFPRs) as indicators of the work-to-retirement transition. Specific attention is directed at how shifts in the retirement life cycle are related to LFPRs. Based on Current Population Survey data for the 1970s, a life table modeling approach showed that LFPRs are relatively weak indicators of the work-to-retirement transition. This was demonstrated by the relative stability in older men's age profiles of LFPRs despite significant changes in the timing and "organization" of the work-to-retirement transition. The 1970s evidenced a contraction of the main career and the expansion of both post-retirement work activity and retirement, yet none of these changes substantially altered the age profiles of older men's labor force participation rates.     

The relationship between employment-related self-efficacy and quality of life following traumatic brain injury.

Objectives: This study examines the relative contribution of employment-related and general self-efficacy to perceptions of quality of life (QoL) for individuals with traumatic brain injury. Design: Correlational. Setting: Community-based research and training center. Participants: 427 individuals with self-reported TBI under the age of 65 were included in analysis. Main Outcome Measure: Employment-related self-efficacy, general self-efficacy, perceived quality of life (PQoL), unmet important needs (UIN). Results: Significant correlations were found between income, injury severity, age at injury, and employment and the QoL variables. In addition, employment-related and general self-efficacy correlated positively with both PQoL and UIN. Employment-related and general self-efficacy accounted for 16% of the variance in PQoL and 9.5% of the variance in UIN, over and above other variables traditionally associated with QoL. Conclusions: These findings highlight the importance of including subjective appraisals of employment, such as perceived self-efficacy at the workplace, in assessing QoL and successful return to work following TBI. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Collectivism-individualism in everyday social life: The middle kingdom and the melting pot.

Used the Rochester Interaction Record (RIR) to investigate the effects of individualism–collectivism on everyday social interaction. Triandis (in press) defined collectivism as placing great emphasis on (a) the views, needs, and goals of the in-group rather than of oneself, (b) social norms and duty defined by the in-group rather than behavior to get pleasure, (c) beliefs shared with the in-group rather than beliefs that distinguish oneself from in-group, (d) great readiness to cooperate with in-group members, and (e) intense emotional attachment to the in-group. University students in the United States, an individualistic country, and Hong Kong, which is highly collectivistic, maintained the RIR for 2 weeks. Consistent with predictions, the Hong Kong students had longer but fewer interactions (half as many) with fewer people, had a higher percentage of group and task interactions, and indicated greater self- and other-disclosure. (PsycINFO Database Record (c) 2010 APA, all rights reserved)