CSP流程X65热轧钢带组织性能研究

在包钢CSP流程X60热轧钢带的基础上,根据"包钢白云鄂博西矿山铁精矿矿浆管道和供水管道工程"技术说明书、API5L标准,进行X65热轧钢带的化学成分、组织、力学性能、工艺性能、HIC和SCC、相分析等系统试验研究,X65热轧钢带的生产和质量控制技术满足用户对管线钢板卷的需求.     

一种加渣装置

正专利号:ZL201821597443. 3专利权人:宝山钢铁股份有限公司设计人:张晨胡会军杨建华蔡得祥本实用新型公开了一种加渣装置,包括用于盛放保护渣的渣罐和用于向结晶器输送保护渣的输送管道,输送管道的一端与渣罐相连,另一端与结晶器相连,输送管道上设有气动阀门,结晶器上方设有中间包,输送管道的中间部分延伸至中间包钢水的上方,中间包钢水利用钢水辐射热对输送管道中的保护渣进行加热。采用本实用新型的     

煤气管道带压堵漏方法在包钢煤气管网的应用

针对包钢煤气管网的运行现状及煤气管道存在腐蚀泄漏的安全隐患,从管道腐蚀破坏的原因、造成管道腐蚀破坏的内外因素进行了分析,结合不同介质管道腐蚀的具体情况,有针对性的采取相应的带煤气带压堵漏方法,排除煤气管网运行中的不安全因素,保证管网的安全运行和正常输气,确保煤气管网系统安全稳定运行.     

宝钢分公司一炼钢IF钢中间包钢水全氧含量影响因素分析

对影响宝钢分公司一炼钢IF钢连铸中间包钢水全氧含量的几个因素进行了相关性分析,提出了在实际生产过程中实现中间包钢水T[O]≤35×10-4%的建议.     

高炉喷吹罐的强度校核

包钢炼铁厂1#高炉喷吹罐发生喷咀部件爆裂坠落事故，造成1#高炉停产。为了有效抢修，设计科学可行的抢修的方案；通过简体超声波测厚，对焊缝进行X射线和超声波损探伤，测得基础数据，对罐体进行了强度校核，保证安全使用。     

SPHC钢连铸温度制度的确定

对梅山生产的465炉SPHC钢连铸中包钢水过热度精炼出站到连铸中包钢水温降值进行了全面分析,结合中包钢水过热度与铸坯质量及生产操作的关系,提出了适合SPHC钢精炼出站温度。     

对硬线钢铸坯中夹杂物的研究

对宣钢生产45钢时连铸过程中中包钢水温度的波动情况进行了调查。对其影响因素进行了分析,提出了改善中包钢水稳定性的措施。     

宣钢45钢连铸中包钢水温度波动的研究

对宣钢生产45钢时连铸过程中中包钢水温度的波动情况进行了调查,对其影响因素进行了分析,提出了改善中包钢水稳定性的措施。     

中间包钢水连续测温技术在韶钢的应用

介绍了韶关钢铁集团有限公司第三炼钢厂2号板坯连铸机采用连续测温技术进行中间包钢水测温,该技术能实现中间包钢水的连续测温,为连铸生产过程拉速控制提供了温度检测保证,是取代现行钢水间断式测温的好方法.     

涟钢210转炉厂超低碳钢全氧控制技术

对影响涟钢210转炉厂超低碳钢连铸中间包钢水全氧含量的几个工艺因素进行了分析,提出了在实际生产过程中实现中间包钢水T〔O〕≤30ppm的关键工艺参数,并将其应用实际生产过程进行了验证。     

Relationship of structure and biological activity of monosaccharide lipid A analogues to induction of nitric oxide production by murine macrophage RAW264.7 cells

Lipid A is the active center of bacterial lipopolysaccharide (LPS), which exhibits diverse biological activities via the production of various mediators. We investigated the production of nitric oxide (NO), one of the mediators, by a murine macrophage cell line, RAW264. 7, upon stimulation with a series of monosaccharide lipid A analogues to elucidate the relationship of structure and activity in NO production. The production of other representative mediators, such as tumor necrosis factor alpha (TNF-alpha) and interleukin-6 (IL-6), was also investigated to compare the structural requirements for the production of these cytokines with those for the production of NO. Structure-activity relationships in NO production correlated well with those in the production of TNF-alpha and IL-6. Among the lipid A analogues possessing different numbers of acyl groups on a 4-O-phosphono-D-glucosamine backbone, compounds like GLA-60 that possess three tetradecanoyl (C14) groups exhibited stronger activities in the production of the mediators than compounds possessing four or two C14 groups. Time course study of the production of these mediators showed that production of NO started and peaked later than those of TNF-alpha and IL-6. Neither neutralization of TNF-alpha activity by antibody nor suppression of TNF-alpha production by pentoxifylline showed a significant suppressive effect on production of NO and IL-6 upon stimulation with LPS or lipid A analogues. Neutralization of IL-6 activity by antibody showed no significant suppressive effect on production of NO and TNF-alpha. A monosaccharide lipid A analogue (GLA-58) which exhibited no detectable agonistic activity showed a suppressive effect on the production of all three mediators upon stimulation with LPS or lipid A analogues. These results indicate that signals for NO production by LPS agonists in murine macrophages are transduced in good correlation with those for production of TNF-alpha and IL-6, although they are not transduced via production of those cytokines.     

南钢烧结生产最优数学模型的研究

以烧结工艺理论为指导，从生产出发，建立了南钢烧结生产优质高产的数学模型，并进行了系统优化，得到了工艺参数，在此基础长对长期处于“同步控制状态”的烧结生产进行了分析，提出了烧结生产中优质高产的“异步控制论”。     

Excess Sludge Production in Membrane Bioreactors: A Theoretical Investigation

This paper presents a theoretical investigation on excess sludge production in membrane bioreactors for municipal wastewater treatment. Based on mass balances of sludge and substrate, a formula to predict the excess sludge production in membrane bioreactors is introduced and verified by experimental data. The effects of kinetic parameters and operating conditions on excess sludge production are discussed for strong-, medium-, and low-strength municipal wastewaters, respectively. The strategy for reducing excess sludge production is recommended in order of priority, as sludge retention time→kd→Y→hydraulic retention time. Furthermore, the differences between membrane bioreactors and activated sludge processes are analyzed from the viewpoint of excess sludge production.     

石横特殊钢厂线材生产线设计特点

石横特殊钢厂线材生产采用串列式布置工艺,中、精轧机组采用集中传动的连轧技术,精整采用穿水和散卷冷却工艺。该条生产线布置顺畅,达产快,主要生产技术经济指标较高。     

昆钢推行清洁生产的现状与建议

阐述了推行清洁生产是企业实施可持续发展的必由之路,对昆钢推行清洁生产的必要性和钢铁企业推行清洁生产的必要性做了一定的分析,同时结合昆钢实施清洁生产的现状和技改中所采用的技术,提出了利用市场经济手段推行清洁生产的建议。     

Right-shifting the oxyhemoglobin dissociation curve with RSR13: effects on high-energy phosphates and myocardial recovery after low-flow ischemia

The influence of temperature and pH on growth of Leuconostoc mesenteroides subsp. mesenteroides FR52 and production of its two bacteriocins, mesenterocin 52A and mesenterocin 52B, was studied during batch fermentation. Temperature and pH had a strong influence on the production of the two bacteriocins which was stimulated by slow growth rates. The optimal temperature was 20 degrees C for production of mesenterocin 52A and 25 degrees C for mesenterocin 52B. Optimal pH values were 5.5 and 5.0 for production of mesenterocin 52A and mesenterocin 52B respectively. Thus, by changing the culture conditions, production of one bacteriocin can be favoured in relation to the other. The relationship between growth and specific production rates of the two bacteriocins, as a function of the culture conditions, showed different kinetics of production and the presence of several peaks in the specific production rates during growth.     

基于DIMINE软件的露天采剥计划编制技术研究

编制露天矿生产计划是当前采矿工程中不可或缺的环节,当前以DIMINE矿业软件为平台编制的适应于国内露天矿的采剥计划系统,立足实际的生产数据,考虑多种因素,有效地指导露天矿山分期开采或中长期采剥计划的编制,为采掘生产计划优化工作提供了切实可行的新途径,提高了矿山生产效率,达到迅速开展工作的目的。     

基于WEB的生产信息管理系统

提出了一个基于wEB的生产信息管理系统，应用动态服务器页面实现了设备动态、生产动态、生产信息等的多条件录入、查询、更新等功能，并根据班产量、月产量生成报表以，供查询和成本核算。     

Studies using antigen-presenting cells lacking expression of both B7-1 (CD80) and B7-2 (CD86) show distinct requirements for B7 molecules during priming versus restimulation of Th2 but not Th1 cytokine production

The differentiation of CD4+ T cells into a Th1 vs Th2 phenotype profoundly influences the outcome of autoimmune and infectious diseases. B7 costimulation has been shown to affect the production of both Th1 and Th2 cytokines, depending on the system studied. There is, consequently, great interest in manipulating the B7 costimulatory signal for therapeutic purposes. To optimally manipulate this key immunoregulatory pathway, the contribution of B7 costimulation to cytokine production requires further clarification. We have compared the B7 requirement for cytokine production by naive vs previously activated T cells using DO11.10 TCR transgenic CD4+ T cells and splenic APCs from mice lacking B7 expression. Our data indicate that induction of IL-4 production and Th2 differentiation by naive T cells is highly dependent on B7 molecules, whereas IL-4 production by previously activated T cells is B7 independent. The predominant contribution of B7-mediated signals to Th1 cytokine production by both naive and primed T cells is upon IL-2 production (and expansion) rather than IFN-gamma (effector cytokine) production. Thus, our studies demonstrate that the antigenic experience of a T cell at the time of B7 blockade may determine whether blockade predominantly affects T cell expansion, differentiation, or effector cytokine production. These differential effects of B7 costimulation on IL-2 vs IFN-gamma production and on IL-4 production by naive vs primed T cells have important implications for understanding how B7:CD28/CTLA4 blockade can be effectively used to manipulate cytokine production in vivo.