Courier 6SL分析仪在选矿中的应用

Courier 6SL分析仪是芬兰奥托昆普公司推出的在线x荧光分析仪系列产品中用于元素品位分析的新型产品,本文介绍了库里厄6SL系统的设计原理和安装使用方法;并在选矿中的作用和意义.     

增强型库里厄载流分析仪

增强型库里厄载流分析仪据芬兰奥托昆普公司资料介绍，在库里厄（ＣＯＵＲＩＥＲ）３０ＡＰ载流分析仪的基础上．该公司又推出库里厄３０ＸＰ（ＥＸｈａＰＯｗｅｒ）增强型载流分析仪。库里厄３０ＸＰ可以使用１—４个多路取样器作二次取样器。也就是说，１台库里厄３０系...     

库里厄系列载流X荧光分析仪的综述

介绍奥托昆普公司生产的库里厄系列载流X荧光分析仪的发展过程、性能比较 ,以及多年来 ,我国对库里厄系列载流X荧光分析仪的引进和应用情况。并提出在设计选型、应用中应注意的几个方面。     

基体炭含量对C/C复合材料滑动摩擦磨损行为的影响

在M2000型摩擦试验机上,以表面镀Cr的40Cr钢为配副,测试了基体炭分别为光滑层热解炭(SL)、树脂炭(RC)和热解树脂炭(SL/RC)的3种C/C复合材料摩擦磨损行为.结果表明:随载荷增加,基体炭为全SL炭的材料A摩擦因数变化小,在0.117～0.105之间;全RC炭的材料B波动最大,在0.156～0.123之间;基体炭中SL炭质量分数为48.9%、RC炭质量分数为20.2%的材料C的摩擦因数波动幅度接近于材料A,在0.120～0.110之间.材料C的体积磨损最小,在0.191～0.620 mm3之间.随时间延长,材料A、C的摩擦因数稳定,材料B的下降幅度最大.SEM观察表明,随载荷增加,材料B摩擦表面逐渐致密、完整,材料C摩擦表面的纤维磨损现象加重.     

煤基直接还原20年

在过去20年中,所有SL/RN法工厂共生产了4.6Mt高金属化率的直接还原铁和7.6Mt预还原铁。由于SL/RN法操作的可靠性,使工厂的作业率不断提高,致使SL/RN法得到广泛的承认。SL/RN直接还原铁基本上作为优质含铁料与废钢搭配用于电炉炼钢,也可用于其他炼钢方法。     

载流荧光分析仪系统的完善和开发应用

针对引进的库里厄30载流X荧光分析仪在德兴铜矿大山选矿厂的多年来的使用情况，提出了完善和开发其设备功能、提高分析精度的设计思路、处理办法以及提高检验准确率的方法。使大山厂的两项主要经济技术指标稳中有升。2002年与2001年同期相比，精矿品位提高了1％，回收率提高了1．4％，取得了较好的经济效益。     

机械工业第17批淘汰落后机电产品项目

原机械工业部会同原国家计划委员会、原国家科学技术委员会联合公布淘汰产品名称及型号规格 淘汰理由淘汰日期 推荐更新产品的型号推荐更新产品制造厂SL7- 3 0 / 1 0 -SL 7- 1 6 0 0 / 1 0S7- 3 0 / 1 0 -S7- 1 6 0 0 / 1 0配电变压器　　 SL7系列为铝线变压器 ,S7系列是在 SL7系列基础上导变出的铜线产品 ,与 S9系列配电变压器相比 ,空载损耗平均高 1 1 % ,负载损耗平均高 2 8% ,每年比 S9产品多耗电约 2亿 k W .h。 S9系列配电变压器年运行成本较 S7系列平均下降 1 7.8% ,与 S9系列相比 ,S7系列产品的运行可靠性较低。1 998年1 2…     

变频系统主变压器维护调试分析

针对轧机10KV变压器二次线圈维修后对SL150变频系统的优化及调试,探讨了SL150变频系统中变压器维修后对系统的影响,提出并实施了系统调试方案,消除BD变压器对SL150调速系统的影响,经优化后系统运用平稳。     

在高炉主出铁槽金属线材料中添加NiO粉末的效果

1前言 从高炉排出的1500～1530℃左右的铁水和炉渣在主出铁槽中会因比重不同而分离，然后分别通过铁水槽和渣槽转向下一道工序。主出铁槽用Al2O3-SiC—C质的低水泥浇注材料作内衬，金属／渣界面（金属线：ML）和渣／空气界面（渣线：SL）会出现局部的损耗状态。因此，一般针对其损耗使用ML及SL两种材质。     

高纯金属铽制备工艺研究

在SL63—7BL真空电阻炉中使用钨坩埚，钽片做收集筒，在真空度为10^-3Pa和1750～1800℃温度下蒸馏提纯金属铽，工艺可靠，可以批量生产。     

Molecular genetics of breast cancer

During 1994, 129 specimens of chub (Leuciscus cephalus L.) from two localities, polluted--Bolelouc, 80th river kilometer, near the city of Olomouc, and unpolluted--Brodské, 225th river kilometer, near the Lanzhot on the Morava river, were examined for metazoan parasites. Altogether 38 metazoan parasite species including helminths, leeches and glochidia belonging to 14 genera were found, 34 in the case of unpolluted locality (Brodské) and 28 in the polluted one (Bolelouc). In both localities, 24 parasite species (Dactylogyrus folkmanovae, D. naviculoides, D. prostae, D. vistulae, D. vranoviensis, Gyrodactylus carassii, G. gasterostei, G. gracilihamatus, G. scardiniensis, G. vimbi, Gyrodactylus sp., Paradiplozoon ergensi, P. homoion, P. megan, Paradiplozoon sp., Caryophyllaeus brachycollis, Diplostomum spathaceum--larval stage, Philometra abdominalis, Acanthocephalus anguillae, Pomphorhynchus laevis and Glochidium sp.) were found, 10 (D. crucifer, D. nanoides, G. hemibarbi, G. lamberti, G. leucisci, G. lomi, P. rutili, C. fennica, A. imitans, S. bramae) were identified solely in the unpolluted locality Brodské and 4 (D. fallax, G. laevis, P. ovata, G. kearni) parasite species were found only in the polluted locality Bolelouc. Differences in parasite species richness, the level of dominance, the structure of core and in satellite species were observed. Current methods of statistical evaluation were used.     

Never a dull moment.

Responds to a series of comments by J. P. Rushton, A. H. Yee, A. Mahlberg, H. H. Spitz, M. Velden, R. Lynn, C. B. Ernhart and N. Hebben, M. Melnick, J. A. Naglieri, R. M. Frumkin, and T. E. Reed (see records 84-18929, 18934, 18924, 18932, 18933, 18923, 18918, 18925, 18926, 18919, and 18928, respectively) on the APA Task Force on Intelligence Report (U. Neisser et al; see record 83-26553). Specific replies are given regarding the issues of research omissions, alternative interpretations of included data, and differences between Black and White IQ means. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

"Revisioning the unconscious": Response to commentaries.

The author responds to comments by R. S. Lazarus, P. L. Wachtel, D. P. Spence, A. W. Kruglanski, E. L. Rossi, M. Eagle, J. F. Kihlstrom, N. F. Dixon, and D. Holender (see PA, Vol 75:16881, 16907, 16900, 16880, 16896, 16860, 16878, 16856, and 16872, respectively) regarding his (see record 1988-16849-001) article on the unconscious. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Minimum inhibitory concentrations for selected antimicrobial agents against organisms isolated from the mammary glands of dairy heifers in New Zealand and Denmark

Minimum inhibitory concentrations were determined for selected antimicrobial agents against 872 bacteria isolated from intramammary infections in heifers in New Zealand (n = 401) and Denmark (n = 471). These values were reported in micrograms per milliliters. Antimicrobial agents tested against isolates from New Zealand were penicillin, cloxacillin, cephapirin, ceftiofur, novobiocin, enrofloxacin, erythromycin, and pirlimycin. The minimum inhibitory concentrations that inhibit 90% of the strains tested for these antimicrobial agents with Staphylococcus aureus were 4.0, 0.5, 0.5, 2.0, 1.0, 0.25, 0.5, and 1.0, respectively. The minimum inhibitory concentration values that inhibit 90% of the strains tested against the Staphylococcus spp. ranged from 0.5 to 1.0 for all antimicrobics. The minimum inhibitory concentrations against streptococci were < or = 0.06, 0.5, 0.13, 0.13, 4.0, 1.0, 0.13, and < or = 0.06, respectively. Antimicrobial agents tested against isolates from Denmark included penicillin, ampicillin, oxacillin, cephalothin, ceftiofur, penicillin plus novobiocin, erythromycin, and pirlimycin. Against S. aureus, the minimum inhibitory concentrations were 0.13, 0.5, 0.5, 0.5, 1.0, 0.25, 0.5, and 0.5, respectively. The minimum inhibitory concentrations against Staphylococcus spp. were 0.25, 0.25, 0.5, 0.5, 1.0, < or = 0.06, 0.13, 1.0, and 0.5, respectively. The minimum inhibitory concentrations against the streptococci were < or = 0.06, 0.13, 0.5, 0.5, 1.0, < or = 0.06, 0.13, 0.5, and 0.5, respectively. Minimum inhibitory concentration values for staphylococci from New Zealand and Denmark were similar to values reported for US isolates. Streptococci from New Zealand and Denmark had lower minimum inhibitory concentration values than did US isolates. Only ceftiofur and enrofloxacin were active against the Gram-negative bacilli.     

The alcoholism controversy.

Argues that the views presented in the Public Forum section devoted to alcoholism in the October 1983 issue of the present journal constituted a narrow and partial glimpse of the specialty of alcoholism treatment. These viewpoints included those offered by C. D. Emrick and J. Hansen, M. S. Goldman, J. W. Langenbucher and P. E. Nathan, G. A. Marlatt, S. Matsunaga, W. Mayer, R. H. Moos and J. W. Finney, K. W. Wanberg and J. L. Horn, and A. N. Wiens and C. E. Menustik (see PA, Vol 71:13198, 12482, 12497, 13214, 13215, 13216, 13219, 12539, and 13234, respectively). (18 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Differentiation of staphylococci from sheep and goat milk samples

A total of 447 micrococcaceae strains isolated from 88 ewe and 359 goat milk samples from cases of chronic mastitis were differentiated by means of the ATB 32 STAPH-test. Of these strains 389 (= 87%) could be identified. Fourteen strains were sensitive in the bacitracin-resistance-test and therefore classified as Micrococcus spp. In ewe milk following Staphylococcus spp. were found: S. epidermidis, S. aureus, S. lentus, S. xylosus, S. warneri, S. equorum, S. haemolyticus, S. simulans, S. hominis and S. saprophyticus. Staphylococcus spp. identified in goat milk samples were: S. epidermidis, S. aureus, S. caprae, S. lentus, S. simulans, S. capitis, S. lugdunensis, S. xylosus, S. chromogenes, S. hominis, S. arlettae, S. warneri, S. sciuri, and S. saprophyticus. Highest cell counts in the milk of both animals species, and the highest incidence of clinical udder alterations were caused by S. aureus. Increases in milk cell counts as well as pathological udder findings were observed in coagulase-negative staphylococcal infections for novobiocin-sensitive Staphylococcus spp. (S. epidermidis, S. warneri, S. simulans, S. lugdunensis, and S. chromogenes) and several S. lentus strains.     

A steady state of 3-hydroxy-3-methylglutaryl coenzyme A reductase activity in cultured rat liver cells and the increase of its activity by dexamethasone

Sandoz seed dressing 6335 showing high efficacy in checking the growth of the maize stalk rot pathogen Erwinia carotovora f. sp. zeae Sabet in culture. Brestan, Antracol, Difolatan, Aratan, Duter, Ceresan wet, Flit-406, Cuman, Blitox-50, Streptocycline, Agrimycin, Terramycin, Actidione, Aureomycin, Chloromycetin, Penicillin G, and Streptomycin were moderately effective. The rest of the 35 chemicals was negligible in its influence. 15 different chemicals, namely Agrimycin, Streptocycline, Chloromycetin, Sodium penicillin G, Actidione, Terramycin, Aureomycin, Sandoz seed dressing 6335, Antracol, Aratan, Blitox-50, Diflotan-80, Ceresan wet, Cuman and Brestan 60 could also control the disease, but only when the plants were treated in vivo immediately after inoculation. They could not show any effectiveness, however, after 24, 48, and 72 hours of inoculation, showing their failure to control, once the infection has taken place by the pathogen.     

In vitro susceptibilities of 27 rickettsiae to 13 antimicrobials

The MICs of 13 antibiotics (doxycycline, thiamphenicol, rifampin, amoxicillin, gentamicin, co-trimoxazole, ciprofloxacin, pefloxacin, ofloxacin, erythromycin, josamycin, clarithromycin, and pristinamycin) were determined for 27 available rickettsial species or strains. We used two in vitro cell culture methods described previously: the plaque assay and the microplaque colorimetric assay. Our results confirm the susceptibilities of rickettsiae to doxycycline, thiamphenicol, and fluoroquinolones. Beta-lactams, aminoglycosides, and cotrimoxazole were not active. Typhus group rickettsiae were susceptible to all macrolides tested, whereas the spotted fever group rickettsiae, R. bellii, and R. canada were more resistant, with josamycin, a safe alternative for the treatment of Mediterranean spotted fever, being the most effective compound. Strain Bar 29, R. massiliae, R. montana, R. aeschlimannii, and R. rhipicephali, which are members of the same phylogenetic subgroup, were more resistant to rifampin than the other rickettsiae tested. Heterogeneity in susceptibility to rifampin, which we report for the first time, may explain in vivo discrepancies in the effectiveness of this antibiotic for the treatment of rickettsial diseases. We hypothesize that rifampin resistance and erythromycin susceptibility may reflect a divergence during the evolution of rickettsiae.