研究了不同料层高度下烧结过程中尾气成分(O2、CO2、SO2和NO)的变化规律.结果表明:随着烧结历程的推进,尾气中O2含量降低而CO2含量升高,这主要是因为固体燃料燃烧量逐渐增多;尾气中SO2、NO的含量亦呈升高趋势,但幅度很小,这主要是因为烧结料层对SO2有吸收作用,而燃烧带的CO气体则可以还原使部分NO分解;在临近烧结终点时,因料层对SO2的吸收作用消失而使析出作用强化,导致尾气中SO2含量急剧升高.另外,随着料层高度的增加,因固体燃料配比相应减小,尾气中CO2、SO2和NO的含量降低,而O2含量增加.因此,控制高温区宽度的厚料层烧结技术是我国开展减少烧结尾气中气体污染物(CO2、SO2和NO)的有效措施

采用液-固掺杂工艺将La(NO3)3与WO3混合,经干燥、La(NO3)3裂解和WO3还原等工艺制备含有La2O3的稀土W粉,采用粉末冶金-熔渗法制备含有La2O3的CuW电触头;研究了保温时间对La(NO3)3裂解的影响以及La2O3对CuW电触头性能的影响.结果表明:用液-固混料法制备的稀土W粉,La2O3分布均匀,粉末粒度较细;La(NO3)3裂解粉末的颗粒随着保温时间的延长而长大;掺杂La2O3的CuW触头耐电弧烧蚀性能有显著的提高

水质一氟、氯、溴等离子、硝酸根、亚硝酸根、磷酸根、硫酸根的测定一离子色谱法(试行) 1范围 本方法可以连续测定饮用水、地面水、地下水、雨水中的F、C1、Br、nO2、nO3、PO43 和SO42 方法的测定下限一般为0.1mg/L。当进样量为00iL,用10is满刻度电导检测器时,F 为0.02mg/L(以下均用mg/L);Cr0.04;NO20.05;no30.10br.15po40.20so40.10 任何与待测阴离子保留时间相同的物质均干扰测定。待测离子的浓度在同一数量级可以 准确定量

Major inorganic gaseous pollutants Carbon monoxide(co) Sulfur dioxide (S02) Nitrogen Oxide(NO, NO2) NOX=NO+NO2 Ozone(03)

Yale law School Public Law and Legal Theory Research Paper No 52 Center for Law, Economics and Public policy Research Paper No 275 University of virginia School of Law Law and economics research Paper series Research Paper No. 03-1 Contract Theory and the limits of Contract Law Alan Schwartz and robert e. scott

At ordinary temperature, matter exists in one of three states Solid- has a shape and forms a surface Liquid- has no shape but forms a surface Gas-has no shape and forms no surface What do we mean by“ fluids”? F| uids are“ substances that flow

October 22, 2001 Personal IdentityⅢ . Review soul criterion and body criterion Soul criterion: x is the same person as y iff and y have the same soul. Problems: i)There is no way to establish body-soul correlations; and no way to establish personality correlations. So soul criterion doesn't make sense of our practices of recognizing and identifying people ii)We have no special access to souls, so even in our own case we can't be sure it's the same soul \inside\ us whenever we are conscious. ii) The problem of identity is \pushed back\: what is it for person-stage x to have the same soul as person-stage y? What makes for sameness of souls? Body criterion: x is the same person as y iff x and y have the same living human body

friends. Whatever the comment, true As a human being, one can hardly do friendship must be firmly based on trust without a friend. As the old saying goes ng. If a friendsh no man is an island In other words, no stand the test of a difficult experience and one can survive without the help and if one feels confident that, no matter friendship of others. And every sign

Good evening, my fellow Americans: Tonight I want to speak to you of peace in Vietnam and Southeast Asia. No other question so preoccupies our people. No other dream so absorbs the 250 million human beings who liv e in that part of the world. No other goal motivates American policy in Southeast Asia. For years, representatives of our Governments and others have traveled the world seeking to find a basis for peace talks. Since last September they have carried the off er that I made public at San Antonio. And that offer was this:

It is useful and very tempting to value MANY THINGS in But there are also many problems. No market, no price. No price, can't count it. Can't count it, doesn't count