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《化工学报》2015,(1):486
<正>发表1篇文章的单位有:The Ohio State University,安徽农业大学,北京低碳清洁能源研究所,北京航空航天大学,北京林业大学,北京市环境保护科学研究院,北卡莱罗纳州立大学,渤海大学,重庆科技学院,大连交通大学,福州大学,广东工业大学,广东轻工职业技术学院,广西民族大学,广州大学,桂林理工大学,国家海洋局第三海洋研究所,哈尔滨商业大学,哈尔滨师范大学,河北大学,河海大学,河南大学,河南科技大学,河南师范大学,湖南科技大学,华北水利水电大学,华东交通大学,华侨大学,淮阴工学院,淮阴师范学院,吉林大学,嘉兴学院,江苏第二师范学院,解放军理工大学,兰州交通大学,廊坊师范学院,丽水学院,辽宁工业大学,辽宁石油化工大学,南昌航空大学,南华大学,南京大学, 相似文献
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《化学世界》1952,(4)
理事曾:理事畏(正)徐作和,(副)汪泰挺。理事二王簌,汪泰挺,宋梧生,李名撤,施旋赫,徐作和,邵家麟,黄菌拣,嘛元俊, 顽翼束(以上华都降理事),丁嗣置,王守恒,方子藩,沈鸿川,李城工薰,李毒恒, 吴承洛,吴鬃周,吴蕴初,周萝白,袁翰青,陈鹰顺,陈眺馨,张辅忠,曹梁厦, 首昭愉,曹庚方,踢捞勤,棘粗康,服志弦,啄聘垂(名春理事)。查崖保管委具曹二吴志超,宋梧生,施旋称,徐作和,辣聘垂,陈眺馨,程寰西,娜拘立, 蔡介忠。编容委具曹:王承明,王蔽,朱弯翁,沈膺川,吴李周,徐作和,陈翻馨,张侠羲, 曹梁厦,贺囿,曾魔方,程有麦,程寰西,黄衡碌,黄菌拣,趟丹若,超漠威, 碟… 相似文献
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机立窑,情况杂,不肖不瞬,就变化;或煤多,易熔化;或停窑,易公占挂;扩口大.也易架;怎操作犷有方法:_L例‘架,十卜停一F,关窑门,风加大.提明火,好观察,急停风,可垮下‘J比操作,可反复,若不行,风停下.保安全,人站远,开一门,观窑面;寻黑点,乃薄面,长钢钎,从此钻,渐扩大,孑匕洞面,一直打,到完全_此程,扣,重安全,防塌窑,快躲闪下部架,也不怕,反复用,风停加,若不落,风停下,关窑门,门紧它,部分人,到窑一下,检修门,尽开大,长钢钎,付准打,大块料,可落下如果是,塔尖卡,反顺转,可落下,若不行,仍人行,切莫用,水浸法 (待续)机立窑安全操作三字经(连载十一… 相似文献
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《无机盐工业》1977,(4)
无水三抓化铝生产能力:短吨/年 ACL Industries,Elktc,n,MdZ,500 Aleoa,Palestine,Te次.]00,000 Allied,Elberta,N.Y.10,000 Aseension,Tonawand:;,N.Y.4,000 Aseen,ion,Houston,Texi,750 Pearsall,LaPox·te,T(,x.7,000 Pear、all,PhilliPsburg,N·J·12,000 Van Demark,LoekPe.rt,N.Y.4,200 Welland,Samia,ontario,Can 12,000 32’Be‘三抓化铝水溶液生产能力短吨/年 Allied,Chieago,111.8,000 Chattem,Chattanooga,Tenn.5,000 Du Pont,Grasselli,N.J·6,000 Pearsall,LaPorte,Tex.5,000 pearsall,philliPsburg,N.… 相似文献
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《煤炭转化》2019,(6)
为研究煤气化过程中微量元素的迁移方向,采集了Shell粉煤气化过程中的煤样、渣和飞灰进行了微量元素检测,研究煤气化过程中不同微量元素迁移方向,并对迁移规律进行了探索。结果表明:Ba,Be,Co,Cr,Cu,Ga,Ge,Li,Mn,Pb,Sb,Sn,Sr,Ti,Tl,V,Y,Zr等18种微量元素气化过程中的迁移有不同的难易程度,其中Be,Sb,Sr 3种元素迁移率低于20%,属于难迁移元素,主要富集于煤气中;Co,Cu,Ga,Ge,Li,Mn,Pb,Tl和V等9种元素迁移率高于70%,为易迁移元素,主要富集于渣和飞灰中;Ba,Cr,Sn,Ti,Y,Zr 6种元素迁移率为30%~60%,为较易迁移元素,在各种废弃物中均有存在。使用统计学软件SPSS19.0进行相关性和聚类分析,结果与上述迁移方向基本一致。 相似文献
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聚甲基丙烯酸甲酯新应用发展近况 总被引:1,自引:0,他引:1
真锅健二 《丙烯酸化工与应用》2001,14(4):36-41
追溯代表性的透明塑料的历史,先后相继工业化的是:聚氯乙烯1927年,聚苯乙烯1930年,甲基丙烯酸甲酯1936年,聚碳酸酯1958年,这些透明塑料当,因甲基丙烯酸甲酯树脂具出类拔萃的透明性,表面光泽,优良的耐候性,以及良好的机械特性等综合性能,被广泛用于汽车部件,弱电零部件,光学元件,广告板,显示器,照明,建材,日用杂品等,在日本其年产量约为20万吨左右,近年来,对甲基丙烯酸甲酯的物性也提出了多种多样,高层次的要求(耐冲击性,耐热性,耐溶剂性,低吸湿性,阻燃性,耐擦伤性,抗静电性,防雾性,波长选择吸收性,防污性,低反射性等),为此,针对不同用途的要求进行了质量和技术开发,此外,在近几年,随着显示材料领域的迅猛发展与其市场的扩大,通过灵活运用甲基丙烯酸甲酯本身特有的透明性进行材料设计,提供更高的光学功能,各种光学元,器件对甲基丙烯酸甲酯的需要量正在不断增长。 相似文献
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Investigation of the effects of fatty acids on the compressive strength of the concrete and the grindability of the cement 总被引:1,自引:0,他引:1
In cement industry, a great energy consumption has been observed during grinding of clinker. To reduce this consumption, some waste products have been used as grinding aids.In this investigation, the effects of sunflower oil (SO), oleic acid (OA), stearic acid (SA), myristic acid (MA) and lauric acid (LA) on the fineness and strength of the cement have been examined. These aids were added into clinker in certain ratios based on the cement clinker weight and the grinding has been done for a definite time at the same condition.All of the fatty acids used increased the fineness as compared with the cement without the grinding additives. SO and OA decreased the strength significantly, LA decreased it to a lesser extent and SA increased it definitely according to the common cement. But MA did not alter the strength of the cement as much as SA. In addition, the covering of the balls influences the grinding of cement clinker unfavourably. 相似文献
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以气煤、肥煤、焦煤、瘦煤为样煤,进行了样煤的粉碎、有机溶剂溶胀和硝酸氧化处理,考察了处理后煤样中的药用腐植酸得率。结果表明,吡啶和N,N-二甲基吡咯烷酮是溶胀较好的溶剂;样煤粉碎后,随着粒度的减小,煤的溶胀率增加;粒度粉碎至200目的气、肥煤经吡啶溶胀和硝酸氧化后,煤样的药用腐植酸得率可达到73.0%和71.4%,而经甲醇溶胀和硝酸氧化的200目气煤药用腐植酸得率为56.4%和58.4%。实验结果表明,煤样经过溶胀和硝酸氧化处理,对药用腐植酸的提取有促进作用。 相似文献
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组合凹模的应力分析是一个非常复杂的问题,对其进行精确分析是解决模具寿命的关键。本文采用有限元分析软件Ansys对转子的组合凹模进行了分析,为转子组合凹模的优化设计提供了依据。 相似文献
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Polyurethaneureas (PUU), which were synthesized from 4,4′-diphenylmethane diisocyanate (MDI), poly(ethylene glycol) (PEG), and 3,5-diaminobanzoic acid (DABA), were used as polyelectrolytes in this study. Differential scanning calorimetry (DSC) and Fourier transform infrared spectroscopy (FT-IR) were used to monitor the effect of the various kinds of PEG on the changes in morphology of PUU electrolytes corresponding to the concentration of lithium perchlorate (LiClO4) dopants. The results of DSC and FT-IR indicate the Li+ ions coordinate with the soft and hard segments. Additionally, the crystallinity of the PEG soft segment and the ordered hydrogen-bonded urea carbonyl groups decreased with increasing salt concentration. Impedance spectroscopy (IS) measurements show that the PUU electrolyte with the high phase separation degree has the high ionic conductivity. The hard-segment Tg and the soft-segment Tm influence the conductivity behavior of polyelectrolytes with increasing measurement temperature. 相似文献
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Igor G. Medvedev 《Electrochimica acta》2008,53(22):6545-6558
Effect of the density of the electronic states at the valence orbital of the bridge redox molecule on the dependence of the tunnel current on the overvoltage and on the width at half maximum of the current-overvoltage curve is studied. A number of the approximate expressions for the density of states, the tunnel current and the width are obtained in the fully adiabatic limit for different particular cases. It is shown that at small values of the coupling of the electronic levels of the electrodes with the valence orbital of the redox molecule and the small values of the bias voltage two regions of the reorganization Gibbs energy exist with different dependence of the width on the reorganization Gibbs energy. The results of calculations of the density of states, the tunnel current and the width are presented and used for the interpretation of the experimental data [N.G. Tao, Phys. Rev. Lett. 76 (1996) 4066, I. Visoly-Fisher, K. Daie, Y. Terazono, C. Herrero, F. Fungo, L. Otero, E. Durantini, J.J. Silber, L. Sereno, D. Gust, T.A. Moore, A.L. Moore, S.M. Lindsay, PNAS 103 (2006) 8686]. 相似文献
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In spinning basalt fibres, the drafting force is in the same range as in spinning of glass fibres. The effect of the drafting
force can not be considered in the calculation for the strength and rigidity of the bottom of the spinneret.
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Translated from Khimicheskie Volokna, No. 5, pp. 47–50, September–October, 2007. 相似文献
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G. N. Leonov 《Combustion, Explosion, and Shock Waves》2008,44(5):547-551
This paper considers the mechanisms involved in the effect of the unconnected porosity of the condensed phase of nitrocellulose
propellants on the linear burning rate with a pressure rise. A model based on experimental data is proposed for the variation
in the linear burning rate taking into account the compaction of the fuel cells resulting in a nonlinear dependence of the
burning rate on pressure. The temperature coefficient of the linear burning rate is found to exhibit a nontrivial behavior
under pressure rise conditions in various ranges of initial temperatures.
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Translated from Fizika Goreniya i Vzryva, Vol. 44, No. 5, pp. 58–63, September–October, 2008. 相似文献