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居德布兰河谷旅游项目—河边桑拿

世界建筑导报 2011年第3期26卷 70-71页

作者： Jan Olav Jensen Dagfinn Sagen Helge Lunder Torstein Koc Thomas Knigge sigrid moldestad

河边桑拿位于一条美丽的河边,可以全景观赏远山的景色。它建在菲多斯景观酒店附近,供酒店的客人使用。桑拿房有一面玻璃墙,朝向景区。建筑物建在地形中,除玻璃墙外,四周用青草覆盖。

关键词：桑拿旅游项目河谷玻璃墙建筑物酒店景色朝向

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居德布兰河谷旅游项目—观景台

世界建筑导报 2011年第3期26卷 60-63页

作者： Jan Olav Jensen Brre Skodvin Torunn Golberg Torste Koc AnneLise Bjerkan sigrid moldestad Jensen Skodvin

主观景台由25毫米激光切割的不锈钢面构成,连在峭壁的两端,像吊桥一样悬挂着。栏杆的几何形状使观景桥即使在安全需要差距很大的地方也可以连接,巨大的内弯形曲线使游客们可以安全地在危险的水域上探身出去,吊桥根据不同的场地特征,用... 详细信息

主观景台由25毫米激光切割的不锈钢面构成,连在峭壁的两端,像吊桥一样悬挂着。栏杆的几何形状使观景桥即使在安全需要差距很大的地方也可以连接,巨大的内弯形曲线使游客们可以安全地在危险的水域上探身出去,吊桥根据不同的场地特征,用最合适该场地的材料构成。

关键词：观景台旅游项目河谷安全需要场地特征激光切割几何形状材料构成

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古德布兰德斯潭观景平台和步道

建筑技艺 2010年第5期16卷 18-19页

作者： Jan Olav Jensen Brre Skodvin Torunn Golberg Torstein Koch AnneLise Bjerkan sigrid moldestad Rickard Riesenfeldt Thomas Knigge

古德布兰德斯潭观景平台和步道位于挪威西北的一个偏远的山谷之中。这里的瀑布远近闻名，每年都会迎接数十万的游客前来观光。瀑布落差虽然不是很高，但是却具有深而窄的戏剧性地形，河流与峭壁发生急剧的摩擦。每到秋天，大量融化了的... 详细信息

古德布兰德斯潭观景平台和步道位于挪威西北的一个偏远的山谷之中。这里的瀑布远近闻名，每年都会迎接数十万的游客前来观光。瀑布落差虽然不是很高，但是却具有深而窄的戏剧性地形，河流与峭壁发生急剧的摩擦。每到秋天，大量融化了的雪水从山顶跌落下来，发出轰鸣的声音。

关键词：观景平台兰德斯步道瀑布山顶

Large-scale industrial manufacturing of carbon nanotubes in a continuous inclined mobile-bed rotating reactor via the catalytic chemical vapor deposition process

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Frontiers of Chemical Science and Engineering 2017年第2期11卷 280-289页

作者： Sophie L. Pirard sigrid Douven Jean-Paul Pirard Laboratory of Chemical Engineering Department of Chemical Engineering University of Liege B-4000 Liege Belgium

This article reports the different steps of the design, development and validation of a process for continuous production of carbon nanotubes （CNTs） via catalytic chemical vapor deposition from the laboratory scale to the industrial production. This process is based on a continuous inclined mobile-bed rotating reactor and very active catalysts using methane or ethylene as carbon source. The importance of modeling taking into account the hydrodynamic, physicochemical and physical phenomena that occur during CNT production in the process analysis is emphasized. The impact of this invention on the environment and human health is taken into consideration too.

关键词： carbon nanotubes catalytic chemical vapor deposition inclined rotating reactor industrial process scaling-up

Can incidental sighting data be used to elucidate habitat preferences and areas of suitable habitat for a cryptic species?

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Integrative Zoology 2017年第3期12卷 186-197页

作者： Wesley R.HAUSER sigrid R.HEISE-PAVLOV Indiana University School of Public and Environmental AffairsBloomingtonIndianaUSA Centre for Rainforest Studies School for Field StudiesYungaburraQueenslandAustralia

The involvement of communities in ecological studies has been shown to augment conservation efforts,especially for cryptic ***,there is a lack of studies addressing the utility of incidental sighting records from community members in gaining knowledge on habitat preferences and distribution of suitable habitat for these *** study compares preferences of the Lumholtz’s tree kangaroo(Dendrolagus lumholtzi;LTK),a cryptic rainforest folivore in northeastern Australia,for various habitat and climatic variables derived from data collected during scientific projects to those derived from incidental sighting records using ArcGIS and *** sighting records suggest that the species uses a wider range of altitudes,annual rainfalls,annual mean temperatures and vegetation types than predicted by scientific *** records also show that the species can persist in areas of lower rainfall during the wettest month and lower minimum temperature during the coldest *** data place the species within a comparable range of rainfalls during the driest month,maximum temperatures of the warmest month and soil *** using identified preferences to assess the extent and distribution of suitable habitat,incidental records predicted more areas of suitable habitat than scientific records with an overlap of up to 91%between *** present study proves that incidental sighting records can be a valuable part of the study of cryptic species and should be considered complementarily alongside scientific studies to obtain comprehensive ecological information of a species that can assist in its conservation.

关键词： cryptic species Dendrolagus lumholtzi incidental sighting data habitat preferences Lumholtz’s tree kangaroo

Ultrasound enhanced friction stir welding of aluminum and steel： Process and properties of EN AW 6061/DC04-Joints

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Journal of Materials Science & Technology 2018年第1期34卷 163-172页

作者： Marco Thoma Guntram Wagner Benjamin Straβ Bernd Wolter sigrid Benferc Wolfram Furbeth Chair of Composites and Material Compounds Chemnitz University of Technology Chemnitz 09125 Germany Fraunhofer Institute for Nondestructive Testing IZFP Saarbrucken 66123 Germany DECHEMA-Forschungsinstitut Frankfurt am Main 60486 Germany

In this work, the joining of aluminum to steel was conducted by ultrasound enhanced friction stir weld- ing （USE-FSW）. The power ultrasound was introduced into one of the metal sheets by an ultrasonic roll seam module synchronously to the FSW-process. The effect of the ultrasound on the resulting welds, their microstructure and their corrosion properties was investigated by light and scanning electron microscopy and corrosion investigations. The USE-FSW-joints showed less and smaller steel particles in the nugget zone as well as a thinner continuous intermetallic phase of FeAl3 at the interface. The nondestructive testing method of computed laminography proved the observations made by optic microscopy due to non-porous joints for both techniques. Corrosion investigations showed only low corrosion current densities and no enhanced galvanic corrosion for the EN AW-6061/DC04-hybrid joints in sodium chloride solution.

关键词： Friction stir welding Ultrasound enhancement Dissimilar joints Corrosion

Genetic diversity for mycorrhizal symbiosis and phosphate transporters in rice

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Journal of Integrative Plant Biology 2015年第11期57卷 969-979页

作者： Kwanho Jeong Nicolas Mattes Sheryl Catausan Joong Hyoun Chin Uta Paszkowski sigrid Heuer Southern Cross Plant Science Southern Cross University International Rice Research Institute(IRRI) Crop and Environmental Sciences Division Seoul National University College of Agriculture and Life SciencesPlant Genomics and Breeding Institute University of Cambridge Department of Plant Sciences Australian Center For Plant Functional Genomics(ACPFG)

Phosphorus （P） is a major plant nutrient and developing crops with higher P-use efficiency is an important breeding goal. In this context we have conducted a comparative study of irrigated and rainfed rice varieties to assess genotypic differences in colonization with arbuscular mycorrhizal （AM） fungi and expression of different P trans- porter genes. Plants were grown in three different soil samples from a rice farm in the Philippines. The data show that AM symbiosis in all varieties was established after 4 weeks of growth under aerobic conditions and that, in soil derived from a rice paddy, natural AM populations recovered within 6 weeks. The analysis of AM marker genes （AM1, AM3, AM14） and P transporter genes for the direct Pi uptake （PT2, PT6） and AM-mediated pathway （PTll, PT13） were largely in agreement with the observed root AM colonization providing a useful tool for diversity studies. Interestingly, delayed AM colonization was observed in the aus-type rice varieties which might be due to their different root structure and might confer an advantage for weed competition in the field. The data further showed that P-starvation induced root growth and expression of the high-affinity P transporter PT6 was highest in the irrigated variety IR66 which a]so maintained grain yield under P-deficient field conditions.

关键词： Mycorrhiza P deficiency tolerance phosphatetransporters rice roots

Strictures, diaphragms, erosions or ulcerations of ischemic type in the colon should always prompt consideration of nonsteroidal anti-inflammatory drug-induced lesions

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World Journal of Gastroenterology 2005年第37期11卷 5828-5833页

作者： Manfred Stolte Diana Karimi Michael Vieth Hildegard Volkholz Klaus Dirschmid sigrid Rappel Birgit Bethke Institute of Pathology Klinikum Bayreuth GmbH Bayreuth 95445 Germany

AIM： To investigate whether NSAIDs/ASA lesions in the colon can histologically be diagnosed on the basis of ischemic necrosis similar to biopsy-based diagnosis of NSAIDs/ASA- induced erosions and ulcers of the stomach. METHODS： In the period between 1997 and 2002, we investigated biopsy materials obtained from 611 patients （415 women, 196 men, average age 60.5 years） with endoscopic focal erosions, ulcerations, strictures or diaphragms in the colon. In the biopsies obtained from these lesions, we always established the suspected diagnosis of NSA/D-inducecl lesions whenever necroses of the ischemic type were found. Together with the histological report, we enclosed a questionnaire to investigate the use of medication. The data provided by the questionnaire were then correlated with the endoscopic findings, the location, number and nature of the lesions, and the histological findings. RESULTS： At the time of their colonoscopy, 86.1% of the patients had indeed been taking NSAID/ASA medication for years （43.9%） or months （29.5%）. The most common indication for the use of these drugs was pain （64.3%）, and the most common indication for colonoscopy was bleeding （55.5%）. Endoscopic inspection revealed multiple erosions and/or ulcers in 60.6%, strictures in 15.8%, and diaphragms in 3.0% of the patients. The lesions were located mainly in the right colon including the transverse colon （79.9%）. A separate analysis of age and sex distribution, endoscopic and histological findings for NSAIDs alone, ASA alone, combined NSAID/ASA, and for patients denying the use of such drugs, revealed no significant differences among the groups. CONCLUSION： This uncontrolled retrospective study based on the histological finding of an ischemic necrosis shows that the histologically suspected diagnosis of NSAID-induced lesions in the colon is often correct. The true diagnostic validity of this finding and the differentiation from ischemic colitis should, however, be investigated in a prospective

关键词： Erosion Ulceration Stricture Diaphragm Ischemic necrose NSAIDs ASA

Corrosion Investigation by Scanning Electrochemical Microscopy of AISI 446 and Ti-Coated AISI 446 Ferritic Stainless Steel as Potential Material for Bipolar Plate in PEMWE

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Acta Metallurgica Sinica(English Letters) 2024年第4期37卷 607-619页

作者： Andrea Kellenberger Nicolae Vaszilcsin Mircea Laurentiu Dan Ion Mitelea Alexandru Adrian Geana sigrid Lædre Corneliu M.Craciunescu Faculty of Industrial Chemistry and Environmental Engineering Politehnica University TimisoaraPiata Victoriei 2300006TimisoaraRomania Faculty of Mechanical Engineering Politehnica University TimisoaraPiata Victoriei 2300006TimisoaraRomania SINTEF Industry 7465TrondheimNorway

The components of proton exchange membrane water electrolysers frequently experience corrosion issues, especially at high anodic polarization, that restrict the use of more affordable alternatives to titanium. Here, we investigate localized corrosion processes of bare and Ti-coated AISI 446 ferritic stainless steel under anodic polarization by scanning electrochemical microscopy (SECM) in sodium sulphate and potassium chloride solutions. SECM approach curves and area scans measured at open-circuit potential (OCP) of the samples in the feedback mode using a redox mediator evidence a negative feedback effect caused by the surface passive film. For the anodic polarization of the sample, the substrate generation-tip collection mode enables to observe local generation of iron (II) ions, as well as formation of molecular oxygen. For the uncoated AISI 446 sample, localized corrosion is detected in sodium sulphate solution simultaneously with oxygen formation at anodic potentials of 1.0 V vs. Ag/AgCl, whereas significant pitting corrosion is observed even at 0.2 V vs. Ag/AgCl in potassium chloride solution. The Ti-coated AISI 446 sample reveals enhanced corrosion resistance in both test solutions, without any evidence of iron (II) ions generation at anodic potentials of 1.2 V vs. Ag/AgCl, where only oxygen formation is observed.

关键词： Ferritic stainless steel Corrosion Ti coating Scanning electrochemical microscopy(SECM) Magnetron sputtering Proton exchange membrane water electrolysis(PEMWE)