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Transactions of Nonferrous Metals Society of China 2010年第9期20卷 1643-1648页

作者： M.WESSN N.E.ANDE RSSoN o.granath School of Engineering Materials and Manufacturing-CastingJnkping University

The microstructure and tensile properties were investigated in a thick-walled section （approximately 45 mm×43 mm） of a rheocast component produced by the RheoMetalTM process. Due to the long solidification period of such components, it is expected that the A1-Si eutectic formed will be coarse. Therefore, sodium （Na） was used as a modifying agent to reduce the coarseness of the eutectic. Tensile test bars were machined from three different sets of materials： 1） non-modified melt, 2） modified melt cast directly after Na addition, and 3） modified melt cast 30 min after Na addition. The alloy used was a secondary AlSi6Cu2.5 alloy （STENAL Rheol）, specially developed for rheocasting. The material was studied in the as-cast condition as well as after a T6 heat treatment. The results show that the Al-Si eutectic is significantly refined by the Na addition, even after a fading time of 30 min. However, it is observed that the Na modification generally has a detrimental effect on the mechanical properties, despite the structure refinement. This is especially true in the T6 heat treated condition, where the yield strength is reduced by more than 30%. Some possible mechanisms for the degradation of mechanical performance are discussed.

关键词： rheocasting thick-walled component eutectic modification mechanical properties sodium Al alloys

Is there a need for new kitchen design?Assessing the adaptative capacity of space to enable circularity in multiresidential buildings

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Frontiers of Architectural Research 2022年第5期11卷 891-916页

作者： Anita ollár Kaj granath Paula Femenías Ulrike Rahe Department of Architecture and Civil Engineering Chalmers University of TechnologySE-41296GothenburgSweden

This paper aims to contribute to the development of spatial criteria for adaptive capacity,which is identified as one important factor for the transition towards more circular housing *** paper focuses on the kitchen,as an important function of the home which is connected to large resource flows and is exposed to frequent renovations and *** paper identifies spatial characteristics of the kitchen and evaluates their potential to accommodate circular solutions focusing on adaptive *** a first step,previous literature on the spatial characteristics of kitchens and indicators that support adaptability is *** are then used to develop an analytical framework to assess the adaptive capacity and circularity potential of 3624 kitchens in contemporary Swedish apartments.A qualitative approach in combination with quantitative methods is employed to analyse the selected *** main contributions of this paper include its spatial analytical framework,its descriptive presentation of contemporary kitchen and apartment designs,and its adaptive capacity assessment of the studied *** results point out that although the overcapacity of the floor area of kitchens and apartments can have significance for adaptability,it is not the only determinative spatial *** windows’location and distribution,the number of door openings and traffic zones,the shafts’location and accessibility from multiple rooms,the room typology and the kitchen typology can improve the adaptive capacity and circularity potential of kitchens and *** findings show that in contemporary floorplans advantageous design solutions connected to the identified spatial characteristics are not applied in a systematic *** research is necessary to define the exact measures of the individual spatial characteristics and their combined application in multiresidential floorplan design.

关键词： Adaptive capacity Spatial criteria Circular design Kitchen design Apartment floorplans Multiresidential

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中国研究：探测裂缝

石油科技动态 2009年第4期 35-38页

作者： Peter Stewart John Tinnin James Hallin Jirn granath 杜东（译）

本文描述了中石化西南石油局（SWPB）如何利用全波地震数据来提升来自中国四川省新场油田一个断裂的致密天然气储层的产量，重点是数据采集技术和数据处理工作流，其中数据处理工作流产生高分辨率图象，并产生与井的生产有关的裂缝信息。

关键词：裂缝中国探测数据采集技术高分辨率图象数据处理天然气储层地震数据

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银屑病与疾病发作时血脂异常相关

世界核心医学期刊文摘（皮肤病学分册） 2006年第5期2卷 50-51页

作者： Mallbris L. granath F. Hamsten A. Sthle M. 李晓莉 Dermatology and Venereology Unit Department of Medicine Karolinska Institutet 171 76 Stockholm Sweden Dr.

Background: Psoriasis appears to have increased cardiovascular morbidity. The underlying pathogenetic mechanisms remain unclear. Multiple factors, including systemic inflammation, oxidative stress, aberrant lipid profile, and concomitant established risk factors, have been discussed. However, previous studies consist of heterogeneous patient materials, including persons with highly varying disease duration and treatment. Methods: Two-hundred patients were investigated at the onset of psoriasis, comparing plasma concentrations of lipids, lipoproteins, and apoipop-roteins with those of matched controls (N = 285). Results: Psoriasis patients manifest significant lipid abnormalities. Specifically, patients had significantly higher cholesterol concentrations in the very-low-density lipoprotein and high-density-lipoprotein fractions. Adjustment for established environmental risk factors did not affect the results. Limitation: The response rate among control subjects was low. However, an additional analysis of a random subset of nonresponders demonstrated no substantial differences in the main results. The study supports the notion that lipid abnormalities in psoriasis may be genetically determined rather than acquired.

关键词：银屑病血脂异常疾病发作环境危险因素脂蛋白浓度极低密度脂蛋白发病机制应答者高密度脂蛋白

炎症性肠病演变为结直肠癌的风险女性低于男性

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中国处方药 2010年第2期9卷 47-47页

作者： Soderlund S granath F Brostrom o

有研究报道雄性和雌性动物患癌症风险不同与炎症相关，对于人侧未见相关报道。而炎症性肠病（IBD）能增加结直肠癌（CRC）的发病风险，IBD的男性和女性患者发生相关CRC风险是否不同？

关键词：炎症性肠病发病风险结直肠癌女性患者男性演变雌性动物 CRC

瑞典1987—1999年的胆囊切除术:一项全国性的死亡率与术前入院研究

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世界核心医学期刊文摘（胃肠病学分册） 2006年第6期2卷 53-53页

作者： Nilsson E. Fored C. M. granath F. Blomqvist P. 王铮(译) 陈云茹(校) Department of Surgery University Hospital Ume SE -90185 Ume Sweden 不详

objective. Information on mortality after cholecystectomy in defined populations is limited. In this study we examined the case fatality rates and mortality ratios, based on register data. Material and methods. Hospital discharge and death certificate data were linked for all patients undergoing cholecystectomy in Sweden in 1987-99. Mortality risk was calculated as the standardized mortality ratio (SMR). Results. From 1 January 1987 to 1 December 1999, 123,099 patients underwent cholecystectomy for acute or chronic gallbladder disease. Between 1987-91 and 1995-99, the incidence of cholecystectomy increased by 13%, median age of patients decreased and the proportion of women increased. From 1995 to 1999, 32%of all cholecystectomies were completed as open cholecystectomy. During this period, 82%of patients aged 70 years or older with acute gallstone disease had an open cholecystectomy. For patients with chronic gallstone disease, the proportion was 43%. Postoperative crude mortality within 30 days for all patients was 0.4%. Patients with acalculous gallbladder disease had double the mortality risk compared with patients with calculous disease, and patients with acute cholecystitis had double the risk compared with patients with chronic disease. High age, previous hospital admission for conditions other than gallbladder disease, and cholecystectomy completed as an open procedure increased the risk, whereas gender and calendar year did not significantly affect the mortality risk. Biliary tract diseases accounted for 61%of all postoperative deaths, whereas 26%were due to cardiovascular diseases. Conclusions. During the 1990s, cholecystectomy incidence increased, whereas postoperative mortality risk remained unchanged. In order to further reduce the mortality risk, particular attention should be paid to elderly and frail patients and to patients with acalculous gallbladder disease.

关键词：胆囊切除术后术后死亡率瑞典全国性慢性胆囊疾病急性胆囊炎女性患者胆结石患者入院术前