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排序方式: 共有355条查询结果,搜索用时 15 毫秒
31.
M Leirisalo-Repo P Helenius T Hannu A Lehtinen J Kreula M Taavitsainen S Koskimies 《Canadian Metallurgical Quarterly》1997,56(9):516-520
OBJECTIVES: Reactive joint complications triggered by salmonella gastroenteritis are increasingly reported, but the outcome and long term prognosis of the patients is incompletely known. This study looked at the prognosis of salmonella arthritis in patients hospitalised in 1970-1986. METHODS: Hospital records from two hospitals in southern Finland were screened for patients with the discharge diagnosis of salmonellosis or reactive, postinfectious arthritis or Reiter's disease. For the patients with confirmed diagnosis of reactive salmonella arthritis, data about the acute disease were collected from the hospital records. A follow up study was performed. RESULTS: There were 63 patients (28 women, 35 men, mean age 36.5 years) with salmonella arthritis. Urethritis occurred in 27%, eye inflammation in 13%, and low back pain in 44% of the patients. HLA-B27 was present in 88%. More men than women were HLA-B27 positive. HLA-B27 positive patients had higher erythrocyte sedimentation rate (mean 80.9 v 46.5 mm 1st h, p = 0.0180). Also, extra-articular features and radiological sacroiliitis were seen only in HLA-B27 positive patients. A follow up study was performed on 50 patients mean 11.0 (range 5-22 years) later. Twenty patients had recovered completely. Ten patients had mild joint symptoms, 11 patients had had a new acute transient arthritis, and five acute iritis. Eight patients had developed chronic spondyloarthropathy. Radiological sacroiliitis was seen in six of 44 patients, more frequently in male than in female patients (32% v 0%; p = 0.0289). Recurrent or chronic arthritis, iritis or radiological sacroiliitis developed only in HLA-B27 positive patients. CONCLUSION: Joint symptoms are common after reactive salmonella arthritis. HLA-B27 contributes to the severity of acute disease and to the late prognosis. 相似文献
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Pertti Aaltonen Rauno Rintamaa Hannu Hnninen Ulla Ehrnstn Esko Arilahti 《Nuclear Engineering and Design》1993,144(1)
Samples of a low alloy steel piping material taken from the full scale corrosion fatigue test loop of the Heissdampfreaktor (HDR) plant have been tested at 240°C in high oxygen reactor water. The small-scale specimens (CT25) were exposed to a similar loading spectrum to that which has been used in the full-scale corrosion fatigue tests at the HDR-plant. During the autoclave tests cyclic crack growth rates were determined. Fracture surface investigations were performed not only for the laboratory test specimens but also for the fracture surface of a sample taken from the HDR test loop piping after the full scale test. In this paper the autoclave testing results and fracture surface observations are presented and compared to those obtained in the HDR piping tests. 相似文献
34.
Hannu Ahokas 《Journal of the science of food and agriculture》1978,29(1):47-52
The protein of distal halves of barley kernels or small meal samples was extracted with ethanolic sodium hydroxide solution. After dilution, the protein content was estimated with a spectrophotometer by measurements at 215 and 225 nm. The tryptophan content was estimated from the same extract by a spectrophotofluorimeter. The methods showed high correlations with those used for control. The presented methods can be used in screening kernels in segregating ears or selecting single plants. 相似文献
35.
Elena V. Murzina Anton V. Tokarev Krisztin Kords Hannu Karhu Jyri-Pekka Mikkola Dmitry Yu. Murzin 《Catalysis Today》2008,131(1-4):385
Various supported gold catalysts were utilized in aerobic lactose oxidation. Comparison between these catalysts revealed, that gold catalysts are sensitive to the type of support. Kinetic regularities, e.g. dependence on pH, temperature and oxygen feed rate were established. Gold catalysts were selective for the production of the first reaction product, sodium salt of lactobionic acid. The electrochemical catalyst potential response was measured “in situ” and then utilized in the reaction process characterization. 相似文献
36.
Kari Törrönen Kim Wallin Timo Saario Hannu Hänninen Rauno Rintamaa Jarl Forstén 《Nuclear Engineering and Design》1985
The effect of metallurgical variables on the two most important crack growth mechanisms - stable crack growth by environmentally assisted cyclic crack growth and unstable crack growth by cleavage - in light water reactor pressure vessel steels is evaluated. The analyses are based on micromechanisms of fracture and sensitivity analysis, when applicable. Metallurgical variables considered are non-metallic inclusions and carbides as well as other parameters through their effects on yield strength and other mechanical properties. 相似文献
37.
Isosaari P Kankaanpää H Mattila J Kiviranta H Verta M Salo S Vartiainen T 《Environmental science & technology》2002,36(12):2560-2565
Dated sediment cores and surface sediments were analyzed from the Gulf of Finland, a part of the Baltic Sea, to study the sources, levels, distribution, and total amounts of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) and polychlorinated biphenyls (PCBs). The gulf was found to be severely polluted, with PCDD/F sum concentrations as high as 101000 ng/kg and 479 ng/kg WHO-TEQ in dry weight. The source of pollution was the former manufacturing and use of a chlorophenol based wood preservative along the Kymijoki River. It was estimated thatthe impacted sedimentary area stretched a distance of 75 km away out from the coast and that the PCDD/F sum load attributed to the wood preservative source was 1770 kg of PCDD/Fs or 12.4 (+/-2.8) kg WHO-TEQ. The surface sediments contained 24-66% of the maximum concentrations present in the 1960-1970s, showing that the river still acts as a significant PCDD/F source and may contribute to the high levels in fish. Moreover, the reduced PCDD/F and PCB concentrations were partly due to the dilution by increased dry matter deposition. PCBs were uniformly distributed over the gulf, and the PCB load in the polluted area was 2020 kg or 0.14 kg WHO-TEG. 相似文献
38.
重点介绍了美卓造纸机械公司研发的Val-Former靴刮刀叠网成形技术、OptiFormer夹网成形器和OptiFlo Ⅱ型流浆箱,以便为使用较高比例的混合废纸且在更高的车速下生产更低定量瓦楞原纸以及挂面纸板时,获得高效、低能耗和理想质量的产品. 相似文献
39.
当前造纸设备研究与发展方向 总被引:3,自引:0,他引:3
HannuOinonen 《中华纸业》2004,25(5):25-27
论述了造纸设备的研究与开发主体已从原来的以造纸厂为主转向目前的以造纸机械厂为主,且集中在少数实力雄厚的造纸机械厂中.同时介绍了纸机、纸板机及整饰设备的最新技术动向. 相似文献
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