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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 l.dre 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)

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Productivity of Commercial Feedlot Beef Production Significantly Improved by Asparagopsis Bioactives Stabilized in Canola Oil

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American Journal of Plant Sciences 2024年第10期15卷 899-929页

作者： Robert D. Kinley Breanna M. Roque sigrid l. Mackenzie Marina R. S. Fortes Chiara Palmieri Garth Tarr Holly Cuthbertson Rodney Polkinghorne Frances C. Cowley FutureFeed Pty ltd. Townsville Australia School of Environmental and Rural Science The University of New England Armidale Australia School of Chemistry and Molecular Biosciences The University of Queensland St. Lucia Australia School of Mathematics and Statistics The University of Sydney Camperdown Australia Birkenwood Pty ltd. Murrurundi Australia

Research using open-circuit respiration chambers has established that Asparagopsis bioactive compounds stabilized in canola oil (Asp-Oil), delivering a range of inclusion between 34 - 51 mg bromoform (CHBr 3 )/kg dry matter intake (DMI), inhibits methane (CH 4 ) emissions > 98% in feedlot cattle. In this study, Asp-Oil was fed at 35 mg CHBr 3 /kg DMI in the feedlot finisher diet under highly replicated and commercially relevant conditions, and adequately powered to confirm differences as low as 3.3% in feed conversion efficiency (FCE). The study also evaluated the effect of Asp-Oil on CH 4 production (g/day), carcass and meat-eating qualities, animal health, and food safety. The experiment consisted of 300 Angus-Shorthorn ( Bos taurus ) steers in 30 pens of 10 and fed a barley-based ration supplemented with canola oil (Control, n = 15), or Asp-Oil (n = 15) for total 81-d, inclusive of 21-d transition to full Asp-Oil and grain inclusion in the finisher ration. Reduction of CH 4 was measured using GreenFeed Emissions Monitors (GEM) in a subset of 2 pens in both Control and Asp-Oil. However, 67% of CH 4 measurements were recorded below the GEM’s limit of detection. An inhibition range of 58% - 98% was demonstrated by collectively using GEM and preliminary respiration chamber measurements. Asp-Oil improved FCE 7.4% in the finisher diet, and 5.6% across transition and finisher periods. During the transition steps the steers had not yet received their full allocations of grain and Asp-Oil which is responsible for the lower FCE benefits. A 4.1% lower DMI in the finisher period contributed to benefits in FCE with no effect on daily weight gains. Cost of feed and weight gain were reduced $0.35/head/day and $0.23/kg, respectively, in steers receiving Asp-Oil. Residues of Asparagopsis CHBr 3 were not detected in any sample and only trace iodide and bromide were detected in livers and kidneys of both Control and Asp-Oil steers at levels safe for human consumption. Steers demons

关键词： Asparagopsis Bromoform Enteric Methane Feed Efficiency Ruminant Seaweed

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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

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World Journal of Gastroenterology 2014年第14期20卷 3986-4000页

作者： Bjarte Fosby sigrid Nss Johannes R Hov James Traherne Kirsten M Boberg John Trowsdale Aksel Foss Pl-Dag line Andre Franke Espen Melum Helge Scott Tom H Karlsen Norwegian PSC Research Center Division of CancerSurgery and TransplantationOslo University Hospital Institute of Clinical Medicine Faculty of MedicineUniversity of Oslo KG Jebsen Inflammation Research Centre Research Institute of Internal MedicineOslo University Hospital Department of Transplantation Medicine Division of CancerSurgery and TransplantationOslo University Hospital Division of Immunology Department of PathologyUniversity of Cambridge and Cambridge Institute for Medical ResearchUniversity of Cambridge Institute of Clinical Molecular Biology Christian-Albrechts-University Department of Pathology Divisoin of Diagnostics and InterventionInstitute of PathologyOslo University Hospital

AIM: To investigate influence of human leukocyte antigen (HlA) and killer immunoglobuline-like receptor (KIR) genotypes on risks of acute rejection (AR) after liver transplantation (lTX).

关键词： liver transplantation Primary sclerosing cholangitis Acute rejection Human leukocyte antigen Killer immunoglobulin-like receptor

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Blockade of Na^+/H^+ exchanger type 3 causes intracellular acidification and hyperexcitability via inhibition of pH-sensitive K^+ channels in chemosensitive respiratory neurons of the dorsal vagal nucleus in rats

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Neuroscience Bulletin 2014年第1期30卷 43-52页

作者： Jing Zhang Hui Peng sigrid C.Veasey Jing Ma Guang-Fa Wang Ke-Wei Wang Department of Respiratory and Critical Care Medicine Peking University First Hospital Departments of Neurobiology and Molecular and Cellular Pharmacology Peking University Health Science Center Center for Sleep and Circadian Neurobiology University of Pennsylvania School of Medicine Department of Medicine University of Pennsylvania School of Medicine

Extracellular pH （pHe） and intracellular pH （pHi） are important factors for the excitability of chemosensitive central respiratory neurons that play an important role in respiration and obstructive sleep apnea. It has been proposed that inhibition of central Na^＋/ H^＋ exchanger 3 （NHE-3）, a key pHi regulator in the brainstem, decreases the pH, leading to membrane depolarization for the maintenance of respiration. However, how intracellular pH affects the neuronal excitability of respiratory neurons remains largely unknown. In this study, we showed that NHE-3 mRNA is widely distributed in respiration-related neurons of the rat brainstem, including the dorsal vagal nucleus （DVN）. Whole-cell patch clamp recordings from DVN neurons in brain slices revealed that the standing outward current （Iso） through pH-sensitive K^＋ channels was inhibited in the presence of the specific NHE-3 inhibitor AVE0657 that decreased the pHi. Exposure of DVN neurons to an acidified PIle and AVE0657 （5 μmol/l） resulted in a stronger effect on firing rate and Iso than acidified pHe alone. Taken together, our results showed that intracellular acidification by blocking NHE-3 results in inhibition of a pH- sensitive K^＋ current, leading to synergistic excitation of chemosensitive DVN neurons for the regulation of respiration.

关键词： Na^+/H^+ exchange potassium channel dorsal vagal nucleus in situ hybridization respiration

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ABI-007,一种不用聚氧乙基代蓖麻油,蛋白质稳定的紫杉醇纳米制剂Ⅰ期临床和药物动力学的研究

ABI-007,一种不用聚氧乙基代蓖麻油,蛋白质稳定的紫杉醇纳米制剂...

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作者： Nuhad K.Ibrahim Neil Desai Sewa legha Patrick Soon-Shiong Richard l.Theriault Edgardo Rivera Bita Esmaeil sigrid E.Ring Agop Bedikian Gabriel N.Hortobagyi Julie A Ellerhorst 乳腺肿瘤医学系

目的:ABI-007是一种不用聚氧乙基代蓖麻油(Cremophor E1),且蛋白质稳定的紫杉醇纳米制剂。不使用聚氧乙基代蓖麻油Cremophor EI可使ABI-007给药前不用进行常规预防超敏反应的预处理。此外,这种新制剂可使得紫杉醇在溶液中以更高的浓度存...

目的:ABI-007是一种不用聚氧乙基代蓖麻油(Cremophor E1),且蛋白质稳定的紫杉醇纳米制剂。不使用聚氧乙基代蓖麻油Cremophor EI可使ABI-007给药前不用进行常规预防超敏反应的预处理。此外,这种新制剂可使得紫杉醇在溶液中以更高的浓度存在,这样就可以减少输液的体积和时间,I期临床试验是要研究ABI-007的毒性,最大耐药剂量(MTD)和药物动力学。实验设计:ABI-007在门诊病人中使用,病人不用预先用药,30分钟滴注。ABI-007的剂量范围是从135(0级)到375mg/m2(3级)。16个病人参加了药物动力学的研究。结果:十九个病人在进行输液治疗期间没有观察到急性超敏反应。血药毒性是缓和的且无而非蓄积性。以3级(375mg/m2)治疗的6个病人中的3人发生剂量限制性毒性,口腔粘膜炎有2个病人,2个病人出现轻微的角膜炎。因此最大耐受剂量定为300 mg/m2(2级)。药物动力学分析显示当ABI-007的剂量在135-300mg/m2范围内时紫杉醇的Cmax和曲线下面积线形增加,Cmax和曲线下面积与病人个体毒性呈现出很好的相关性。结论:ABI-007提供了几个临床研究感兴趣的方面,包括快速输液率,不用预先用药处理和较高的紫杉醇最大耐药剂量,我们的研究结果为II期临床试验提供了该药抗肿瘤活性的依据。

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国际糖尿病足工作组:糖尿病足溃疡周围动脉病变诊断、预后与管理指南——《国际糖尿病足工作组:糖尿病足防治国际指南(2019)》的一部分

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感染．炎症．修复 2019年第4期20卷 195-206页

作者： Robert J.Hinchliffe Rachael O.Forsythe Jan Apelqvist Ed J.Boyko Robert Fitridge Joon Pio Hong Konstantinos Katsanos Joseph l.Mills sigrid Nikol Jim Reekers Maarit Venermo R.Eugene Zierler Nicolaas C.Schaper 无许樟荣(译) 冉兴无(审校) Bristol Centre for Surgical Research University of BristolBristolUK British Heart Foundation/University of Edinburgh Centre for Cardiovascular Science University of EdinburghEdinburghScotlandUK Department of Endocrinology University Hospital of MalmoSweden Seattle Epidemiologic Research and Information Centre-Department of Veterans Affairs Puget Sound Health Care System and the University of Washington SeattleWashingtonUSA Vascular Surgery The University of AdelaideAdelaideSouth AustraliaAustralia Asan Medical Center University of Ulsan SeoulKorea Patras University Hospital School of Medicine RionPatrasGreece SAlSA(Southern Arizona limb Salvage Alliance) University of Arizona Health Sciences CenterTucsonArizonaUSA Asklepios Klinik *** HamburgGermany Department of Vascular Radiology Amsterdam Medical CentreThe Netherlands Helsinki University Hospital University of HelsinkiFinland Department of Surgery University of WashingtonSeattleWashingtonUSA Div.Endocrinology MUMC+CARIM and CAPHRI InstituteMaastrichtThe Netherlands International Working Group on the Diabetic Foot(IWGDF) 战略支援部队特色医学中心北京100101 四川大学华西医院四川成都610041

1999年以来,国际糖尿病足工作组(IWGDF)已经多次发表循证医学基础上的糖尿病足预防与管理指南。该指南是有关糖尿病足溃疡合并周围动脉病变(PAD)患者的诊断、预后和管理指南,更新了以前IWGDF指南的内容。高达50%的糖尿病足溃疡患者同时... 详细信息

1999年以来,国际糖尿病足工作组(IWGDF)已经多次发表循证医学基础上的糖尿病足预防与管理指南。该指南是有关糖尿病足溃疡合并周围动脉病变(PAD)患者的诊断、预后和管理指南,更新了以前IWGDF指南的内容。高达50%的糖尿病足溃疡患者同时患有PAD,这种病变使得患者截肢和心血管病变的风险明显增加。这类患者的诊断、预后和治疗明显地不同于那些没有PAD的糖尿病患者,但仅有很少的关于这类患者的高质量的研究强调了这点。我们遵循GRADE方法来提出临床问题并以至少包括患者-干预-比较-结局(PICO)形式说明重要结局,进行了系统的医学科学文献评价,写出推荐意见及其合理性。这类推荐是建立在系统文献评价的循证医学基础上的,没有证据时则在权衡利弊和患者选择、便宜性和干预的费用等因素后,采用专家的观点。这里我们发布更新的2019年糖尿病足溃疡合并PAD患者的有关PAD诊断、预后和管理的指南,以及一些需要未来特别关注的研究课题。

关键词：糖尿病足足溃疡指南周围动脉病变外科诊断预后血管病变

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德国汉堡历史水利设施的适应性转型:从保障公共卫生的关键基础设施到宝贵的人工生态系统和公共空间

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景观设计学（中英文） 2023年第6期11卷 44-53页

作者：西格丽德·海尔-兰格埃卡特·兰格英国谢菲尔德大学景观系谢菲尔德S102TN

缺乏安全的饮用水供应是引起霍乱等水源性传播疾病的一大原因。即使在现代,每年仍有约10万人死于霍乱。20世纪初至中叶以来出现的一些相对简单但高效的工程解决方案为人们提供了清洁的饮用水。1892年,德国汉堡市爆发霍乱疫情,短短几周... 详细信息

缺乏安全的饮用水供应是引起霍乱等水源性传播疾病的一大原因。即使在现代,每年仍有约10万人死于霍乱。20世纪初至中叶以来出现的一些相对简单但高效的工程解决方案为人们提供了清洁的饮用水。1892年,德国汉堡市爆发霍乱疫情,短短几周内就有超过8000人丧生。为了应对这一危机,汉堡市建立了沉淀和过滤系统以提供清洁饮用水,自此该系统运行了将近一个世纪。近几十年来,这些设施逐渐废弃,人们提出了大型综合用地开发等多项提案,而后又根据不断变化的需求进行调整,以提供教育和休闲服务,同时提升自然资产价值。那些保存下来的历史建筑具有较高的文化遗产价值,在自然演替和设计干预的共同作用下,它们与景观环境相融合,转变为了具有美学价值的宝贵栖息地。此外,易北河疏浚曾饱受争议,为补偿其造成的环境影响,一些旧沉淀池因适宜的地理位置被重新设计为栖息地,为当地特有的罕见植物提供了家园。

关键词：适应性转型自来水厂砂滤系统霍乱工业遗产游憩生态补偿生态系统修复基于自然的解决方案

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宝马世界

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城市环境设计 2020年第4期126卷 134-149页

作者：沃尔夫·狄·普瑞克斯 Paul Kath Tom Wiscombe Waltraut Hoheneder Mona Marbach Hans Aescht Beatrix Basting Guy Bebiè Chris Beccone Johannes Behrens Marcelo Bernardi Pawel Bodzak Verena Boyer Antja Bulthaup Claudia Buhmann Timo Carl Jan Chaldil Ing Tse Chen Tadeusz Chimiak Andrea Christmann Patrick Erhardt Stephan Exsternbrink Wolfgang Fiel Benedikt Frass Helmut Fr?tscher Volker Gessendorfer Andrea Graser lukas Haller Markus Henning Armin Hess Jens Hoff Tamas Horvath Robert Huebser Astrid Jagersberger Marin Jurycz Gregor Kassl Areta Keller Markus Klausecker Tobias Klein Martin Konrad Quirin Krumbholz Caroline Kufferath Marion lattenmayer Stefan laub Wolfgang leitgeb Andreas Mieling Karin Miesenberger Dennis Milam Elke Müller Henrike Münker Claudia Nehammer Martin Oberascher Alexander Ott Stefan Pfefferle Florian Pfeifer Markus Pillhofer Ekkehard Rehfeld Goswin Rothenthal Wolfgang Ruthensteiner Jasmin Sauerbier Florian Schafschetzy Kristina Schinegger Karolin Schmidbaur Patrick Schneider Katharina Schneider Hubert Schoba Angus Schoenberger Andrea Sch?ning Anja Sorger Gernot Stangl Mark Steinmetz sigrid Steinwender Martina Tippelskirch Dionicio Valdez Pascal Vauclair Akvile Rimantaite Andreas Weissenbach Heribert Wolfmayer Irina Zahler 2007 Ari Marcopoulos Gerald Zugmann Hélène Binet Duccio Malagamba Marcus Buck Christian Richters Richard Walch

项目大事记/CHRONOlOGY竞赛（一等奖）/Competition（1st Prize）:2001规划设计起始时间/Start of Planning:11/2001施工起始时间/Start of Construction:08/2003投入使用/Opening:20/10/2007-21/10/2007项目参数/PROJECT DATA用地面积/Site Area:约25 000m2/Approx. 25 000m2建筑毛面积/Gross Floor Area:约73 000m2（除坡道）=100%/Approx.73 000m2（excluding ramps）=100%地上建筑毛面积/Gross Floor Area above ground:约28 500m2=40%/Approx.28 500m2=40%地下建筑毛面积/Gross Floor Area underground:约44 500m2=60%/Approx.44 500m2=60%

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