Intelligent predictive model of ventilating capacity of imperial smelt furnace

1　INTRODUCTIONItisaverycomplicatedphysicalandchemicalre actionprocessathightemperaturetosmeltplumbumbyimperialsmeltprocess(ISP) ,whichisnonlinear ,withstrong couplingandlong timedelay .Theventi latingcapacityoftheimperialsmeltfurnace (ISF)in fluencesthestateoffurnaceandthetotalmineralma terialamount ,whicharevitalfactorstotheoutputofplumbum .Therefore ,itisveryimportanttobuildthepredictivemodeloftheventilatingcapacityofISF ,bywhichoperatorsareabletoknowthestateoftheISFontime ,decidet…     

Life cycle inventory analysis of CO2 and SO2 emission of imperial smelting process for Pb-Zn smelter

Based on the principle of life cycle assessment, CO₂ and SO₂ emission of Imperial Smelting Process in a certain zinc-lead smelter was analyzed by life cycle inventory method. According to the system expansion and substitution method, the environmental impacts of co-products were allocated among the main products of zinc, lead and sulfuric acid. The related impacts were assessed by use of Global Warming Potential (GWP) and Acidification Potential (ACP). The results show that the GWP index from 1998 to 2000 is 11.53, 11.65, 10.93 tCO₂-eq/tZn respectively, the ACP index decreases from 14.88 kgSO₂-eq/tZn in 1998 to 10.99 kgSO₂-eq/tZn in 2000. Power and electricity generation, followed by smelting and zinc distillation, are mainly responsible for GWP. Sintering individually affects ACP. Reduction in greenhouse gas emissions of the ISP may come from energy conservation measures rather than from technological developments. And recycling more secondary Pb and Zn materials effectively treated by ISP, and reducing the amount of primary metal are the main ways to put SO₂ emission under control. Biography of the first author: LI Qi-hou, postdoctor, born in Aug. 1972, majoring in ecodesign and the structure and morphology control of powders.     

The Temperature Intelligence Control System Based on Single Chip-Microprocessor

The paper introduces a temperature control system based on AT89C51 single-chip-microprocessor, and discusses the principle , hardware structure, and software design of this system in detail.     

Research on One High Precision Megnetic Heading System Based on on-line Estimation and Correction of Remnant Devia-tion with Neural Network

Compassisonekindofclassicalheadinginstrument,comparedtootherheadingsystems,issmallerinsize,lighterinweight,quickerinreacationandmorereliableandsoon,especialywhenotherde-vicesarebrokendown,itbecametheonlyoneheadingdevice,soitisveryimportantinships.Butbecauseithaslowprecision,itonlyactsasoneauxiliaryheadingdevice.Ontheotherhand,compasshasdeviationthatcanchangewithtimepassing,soithastobecor-rectedtimeandtimesothatitcansatisfytherequest.Andatthesametime,thecorrectionofdeviationisrealizedbyhand,whi…     

威达电嵌入式主板在多参数监护仪中的应用

1发展前景健康问题始终是人们关注的话题,随着我国经济的快速发展,生活水平的不断提高,人们对于自身健康的关注也提升到一个前所未有的高度。多参数监护仪是医院的常规设备之一,广泛的用在ICU、CCU、病房、手术室等。我国的大量人口也需要大量的高精密的医疗器械。作为工业计算机的全球性的企业,我公司推出以下的解决方案。2系统原理通过多种检测模块采集人体基本参数,如心电、呼吸、血压、血氧、体温等,经放大、滤波、传输、CPU进行信号处理,然后将检测结果显示、存储、打印,并可连入中央监护系统网,以便值班人医务人员进行观察,做出相…     

广州美术学院新媒介艺术设计专业

广州美术学院始建于1953年，前身是中南美术专科学校，1958年从湖北武昌迁到广州，更名为广州美术学院。现在，广美已经是华南地区一所美术系科设置齐全的高等美术学府，包括设计和美术两大学科体系，下面我们要介绍的，便是广州美术学院在设计学科下设的新媒介艺术设计专业。     

威达电SRM强光下可阅读高亮度平板显示器切入高阶应用市场

~~威达电SRM强光下可阅读高亮度平板显示器切入高阶应用市场$芯发威达电子(上海)有限公司     

Effects of sintering atmosphere on the microstructure and mechanical property of sintered 316L stainless steel

1　ＩＮＴＲＯＤＵＣＴＩＯＮＰｒｅｓｓ/ｓｉｎｔｅｒ (Ｐ/Ｍ )ｉｓａｃｏｍｍｏｎｌｙｕｓｅｄｔｅｃｈｎｏｌｏｇｙｆｏｒｆａｂｒｉｃａｔｉｏｎｏｆｐｏｗｄｅｒｍｅｔａｌｌｕｒｇｙ31 6Ｌｓｔａｉｎｌｅｓｓｓｔｅｅｌ.Ｙｅｔ,ｔｈｅａｓ ｓｉｎｔｅｒｅｄｄｅｎ ｓｉｔｙｉｓａｂｏｕｔ 90 %ｏｆｔｈｅｏｒｅｔｉｃａｌｄｅｎｓｉｔｙｗｉｔｈｌｏｗｍｅｃｈａｎｉｃａｌｐｒｏｐｅｒｔｉｅｓ.ＳｏｍｅｒｅｓｅａｒｃｈｅｒｓｓｔｕｄｉｅｄａｄｄｉｎｇｅｌｅｍｅｎｔｓｌｉｋｅＢ ,Ｐ ,Ｓｉ,Ｃｕ ,Ａｌ,ｅｔｃ .ｔｏｆｏｒｍｌｏ…     

Extracting gold from pyrite roster cinder by ultra-fine-grinding and resin-in-pulp

1　ＩＮＴＲＯＤＵＣＴＩＯＮＲｅｓｉｎ ｉｎ ｐｕｌｐｐｒｏｃｅｓｓｉｓａｎａｄｖａｎｃｅｄｔｅｃｈ ｎｉｑｕｅｏｆｅｘｔｒａｃｔｉｎｇ ｇｏｌｄｗｉｔｈｏｕｔｆｉｌｔｅｒ ,ｉｎｗｈｉｃｈｇｏｌｄｉｓｄｉｒｅｃｔｌｙｅｘｔｒａｃｔｅｄｆｒｏｍｃｙａｎｉｄｅｐｕｌｐｗｉｔｈｉｏｎｅｘｃｈａｎｇｅｒｒｅｓｉｎ .Ｉｔａｖｏｉｄｓｌｉｑｕｉｄｓｏｌｉｄｓｅｐａｒａｔｉｏｎ ,ｄｅｃｒｅａｓｅｓｌｏｓｓｏｆｇｏｌｄｉｎｔａｉｌｗａｓｈｉｎｇｓａｎｄｉｎｃｒｅａｓｅｓｔｈｅｒｅｃｏｖｅｒｙｏｆｇｏｌｄ[1,2 ] .353Ｅ…     

Effect of additive on synthesis of MnZn ferrite nanocrystal by hydrothermal crystallization

1　ＩＮＴＲＯＤＲＣＴＩＯＮＷｉｔｈｒｅｇａｒｄｔｏｔｈｅｓｔｕｄｙｏｆｃｒｙｓｔａｌｇｒｏｗｔｈｕｎｉｔｓ,ｒｅｓｅａｒｃｈｅｒｓｍａｉｎｌｙｃｏｎｃｅｎｔｒａｔｅｏｎｔｈｅｄｉｓｓｏｌｕｔｉｏｎｏｆｓｏｌｕｔｅ ,ｔｈｅｆｏｒｍａｔｉｏｎｏｆｇｒｏｗｔｈｕｎｉｔｓａｎｄｔｈｅｔｒａｎｓｐｏｒｔａｔｉｏｎｏｆｔｈｅｃｒｙｓｔａｌｇｒｏｗｔｈｕｎｉｔｔｏｔｈｅｉｎｔｅｒｆａｃｅ ,ａｓｗｅｌｌａｓｔｈｅｃｏｎｇｒｕｅｎｃｙｏｆｔｈｅｇｒｏｗｔｈｕｎｉｔｓｏｎｔｈｅｉｎｔｅｒ ｆａｃｅｓｏｆｔｈｅｃｒｙ…