bluuebunny/crossref_metadata_2025_split huggingface dataset:
Statische und dynamische Axialdruckversuche an vergrouteten Rohr‐in‐Rohr‐Verbindungen mit verschiedenen Füllmaterialien
Authors: Schaumann Peter , Keindorf Christian , Lochte‐Holtgreven Stephan 
Published: November 2009

AbstractIn diesem Beitrag wird über Ergebnisse von experimentellen und numerischen Untersuchungen an vergrouteten Rohr‐in‐Rohr‐Verbindungen berichtet, die am Institut für Stahlbau der Leibniz Universität Hannover durchgeführt wurden. Diese sogenannten “Grouted Joints” kommen z. B. als Verbindungselemente zwischen dem im Boden eingerammten Pfahl und dem Turm einer Offshore‐Windenergieanlage zum Einsatz. An deutlich kleineren Prüfkörpern wurden Axialdruckversuche im Labor durchgeführt, um den Unterschied zwischen glatten und gerippten Stahlrohrmantelflächen im Grenzzustand der Tragfähigkeit und Ermüdung aufzuzeigen. Dabei kamen auch verschiedene Füllmaterialien für den Ringspalt zum Einsatz. Die Tragfähigkeit bei den Prüfkörpern mit glatten Rohrmantelflächen ist hauptsächlich von der Haftfestigkeit des Füllmaterials auf den Stahloberflächen und deren Beschaffenheit abhängig. Durch die Anordnung von Schubrippen kann die Trag‐ und Ermüdungslast um ein Vielfaches gegenüber der glatten Variante gesteigert werden. Dies ist hauptsächlich auf die Wirkung von Druckstreben zwischen den Schubrippen zurückzuführen, deren Tragfähigkeit sich mit zunehmender Druckfestigkeit des Füllmaterials erhöht. Mit einem Bemessungsmodell kann unter Berücksichtigung der Druckstrebentragfähigkeit und Anzahl der Schubrippen die Traglast von Grouted Joints abgeschätzt werden.Static and dynamic axial compression tests on grouted tube‐in‐tube connections with various grout materials.This paper summarises static and dynamic axial compression tests on small scale grouted joints for offshore wind energy converters. The connection is mostly used between driven monopiles and tower sections as tube‐in‐tube connection. The gap between the tubes is filled with grout materials. The test series comprises grouted joints with smooth and ribbed surfaces of the tubes which are loaded by axial compression. The ultimate and fatigue limit state of the connection can be increased with shear keys along the overlapped length of the tubes to get a ribbed contact surface to the grout. In this case the axial load is transferred by compression struts between the shear keys. The bearing capacity depends mainly on the compressive strength of the grout and the geometry of the shear keys. In addition to the experimental results an analytical design concept is presented within this paper for grouted joints with shear keys. With the analytical model the axial load capacity of the grouted joint can be determined under consideration of the compression struts and number of shear keys.
Nachweis der Firstspaltverpressung bei zerstörungsfreien Schalendickenmessungen an Tunnelinnenschalen
Authors: Mähner Dietmar , Roder Christian 
Published: November 2009

AbstractBisherige Auswertungen bei diversen Tunnelprojekten ergaben, dass bei Tunnelinnenschalen die Firstspaltverpressung nicht immer zerstörungsfrei nachgewiesen wurde. In Bereichen, die beispielsweise durch eine freiliegende Bewehrung in der Firste instand gesetzt werden müssen, ist der Nachweis des Verpressguts von großer Bedeutung. In Laborversuchen wurde an Betonprobekörpern dieser Fragestellung durch Variation verschiedener Einflussgrößen und Parameter experimentell nachgegangen. Im Anschluss daran erfolgte die praktische Umsetzung der Versuchsergebnisse auf einer Tunnelbaustelle im Bereich von detektierten Fehlstellen im Firstbereich. Durch den Einsatz spezieller Verpressgüter und Vorbehandlungen konnte die Tunnelinnenschale mit dem Verpressgut in diesem Bereich zerstörungsfrei einwandfrei nachgewiesen werden.Verification of Ridge‐Gap Grouting by Measuring the Shell Thickness of the Inner Tunnel Layer by Non‐Destructive TestingPrevious evaluations of various tunnel projects showed results where the ridge‐gap grouting of the inner tunnel shells was not always been non‐destructively proven. In areas which, for example, have to be repaired through exposed reinforcement in the ridge, the proof of the grouting material is of great importance. This problem was explored experimentally in laboratory tests on concrete test specimens through variation of different actuating variables and parameters. Afterwards, the experimental results were put into practice in areas of detected flaws in the ridge area on a tunnel construction site. The inner tunnel shell with the grouting material could be proved perfectly non‐destructively by using special grouting material and pre‐treatments in this area.
Lötschberg‐Basistunnel Herausforderungen beim Innenausbau
Authors: Teuscher Peter 
Published: November 2009

AbstractDer 34,6 km lange Lötschberg‐Basistunnel ist seit Dezember 2007 in Betrieb. In [1] wurde bereits über die Materialbewirtschaftung und die Betontechnologie berichtet. Es ist die Qualität des Innenausbaus, der den größten Einfluss auf das Langzeitverhalten des Tunnels hat und dem daher die größte Sorgfalt bei der Projektauslegung und deren Umsetzung geschenkt werden muss. Der nachfolgende Beitrag beschreibt, wie gestützt auf das Zusammenwirken der dynamischen Bahnlasten und dem möglichen Zutritt von Bergwasser die drainierende Sohlenausbildung festgelegt wurde. Eine weitere Herausforderung war das Erstellen der Innenschale und der Bankette. Hohe Leistungen, kleinste Toleranzen und einwandfreie Qualität bestimmten die Anforderungen an die Schalungen sowie an die Logistik. Der vorliegende Bericht richtet sich an Bauherren, Planer und Unternehmer, die im Untertagebau tätig sind und von den Erfahrungen anderer profitieren möchten.
Impulsradar für schadensfreie Kernbohrungen an Spannbetonbrücken
Authors: Kind Thomas , Feistkorn Sascha , Trela Christiane , Wöstmann Jens 
Published: November 2009

AbstractDer Bedarf an Kernbohrungen in Stahlbetonbauwerken ist in den letzten Jahren durch die steigende Anzahl von Instandsetzungen und Ertüchtigungen unterschiedlicher Stahlbetonbauten stark gewachsen. Für die Durchführung einer Kernbohrung ist die Kenntnis der genauen Lage der vorgespannten Bewehrung notwendig, um diese für die Statik wichtigen Elemente nicht zu beschädigen. Das methodische Vorgehen für die schadensfreie Durchführung von Kernbohrungen wird am Beispiel einer ca. 1 m dicken Hohlkastenseitenwand der Karl‐Carstens Brücke in Bremen gezeigt. Nach der Darstellung der Ausgangslage und der Aufgabenstellung werden die Schritte beschrieben, die zu einer erfolgreichen Durchführung der Aufgaben erforderlich waren. Hierbei steht die planmäßige Anwendung der zerstörungsfreien Untersuchungsmethode Impulsradar im Vordergrund. Das Vorgehen gliedert sich in vier Schritte:– Zunächst wurde eine Voruntersuchung durchgeführt, um festzustellen, ob sich die vorgespannte Bewehrung in den erwarteten Tiefen von bis zu 50 cm und unter den vorhandenen Bedingungen der Hohlkastenseitenwände mit dem Impulsradar detektieren lässt.– Nach der erfolgreichen Voruntersuchung wurden im zweiten Schritt die Bereiche der geplanten Kernbohrungen großflächig mit dem Impulsradar untersucht.– Anschließend konnte anhand der Messdaten die Lage der Bewehrung ermittelt und in einen Plan eingezeichnet werden, der im Maßstab 1:1 ausgedruckt wurde. Dieser Plan wurde positionsrichtig auf die Oberfläche der Hohlkastenwand geklebt.– Im letzten Schritt wurden dann gezielte Test‐ und Suchbohrungen durchgeführt, denen die eigentlichen Kernbohrungen folgten.Mit der im Plan dargestellte Bewehrungslage war die Voraussetzung für schadensfreies Bohren gegeben. So konnten die Kernbohrungen durchgeführt werden, ohne die vorgespannte Bewehrung zu beschädigen.
Sizing up the genomic footprint of endosymbiosis
Authors: Elias Marek , Archibald John M. 
Published: November 2009

AbstractA flurry of recent publications have challenged consensus views on the tempo and mode of plastid (chloroplast) evolution in eukaryotes and, more generally, the impact of endosymbiosis in the evolution of the nuclear genome. Endosymbiont‐to‐nucleus gene transfer is an essential component of the transition from endosymbiont to organelle, but the sheer diversity of algal‐derived genes in photosynthetic organisms such as diatoms, as well as the existence of genes of putative plastid ancestry in the nuclear genomes of plastid‐lacking eukaryotes such as ciliates and choanoflagellates, defy simple explanation. Collectively, these papers underscore the power of comparative genomics and, at the same time, reveal how little we know with certainty about the earliest stages of the evolution of photosynthetic eukaryotes. Editor's suggested further reading in BioEssaysEarly steps in plastid evolution: current ideas and controversies AbstractDinoflagellate mitochondrial genomes: stretching the rules of molecular biology Abstract
Recognition of lysine‐rich peptide ligands by murine cortactin SH3 domain: CD, ITC, and NMR studies
Authors: Rubini Chiara , Ruzza Paolo , Spaller Mark R. , Siligardi Giuliano , Hussain Rohanah , Udugamasooriya D. Gomika , Bellanda Massimo , Mammi Stefano , Borgogno Andrea , Calderan Andrea , Cesaro Luca , Brunati Anna M. , Donella‐Deana Arianna 
Published: November 2009

AbstractCortactin is a ubiquitous actin‐binding protein that regulates various aspects of cell dynamics and is implicated in the pathogenesis of human neoplasia. The sequence of cortactin contains a number of signaling motifs and an SH3 domain at the C‐terminus, which mediates the interaction of the protein with several partners, including Shank2. A recombinant protein, comprising the murine cortactin SH3 domain fused to GST (GST‐SH3m‐cort), was prepared and used to assess the domain‐binding affinity of potential peptide‐ligands reproducing the proline‐rich regions of human HPK1 and Shank2 proteins. The key residues involved in the SH3m‐cort domain recognition were identified by three different approaches: non‐immobilized ligand interaction assay by circular dichroism, isothermal titration calorimetry, and nuclear magnetic resonance. Our results show that the classical PxxPxK class II binding motif is not sufficient to mediate the interaction with GST‐SH3m‐cort, an event that depends on the presence of additional basic residues located at either the N‐ or the C‐terminus of the PxxPxK motif. Especially effective in promoting the peptide binding is a Lys residue at the ‐5 position, a determinant present in both P2 (HPK1 394‐403) and S1 (Shank2 1168‐1189) peptides. GST‐SH3m‐cort exhibits the highest affinity toward peptide S1, which contains additional Lys residues at the ‐3, ‐5, and ‐7 positions, indicating that the optimal consensus motif may be KPPxPxKxKxK. These results are supported by the in silico models of SH3m‐cort complexed with P2 or S1, which highlight the domain residues that interact with the recognition determinants of the peptide‐ligand and cooperate in binding stabilization. © 2010 Wiley Periodicals, Inc. Biopolymers (Pept Sci) 94: 298–306, 2010.This article was originally published online as an accepted preprint. The “Published Online” date corresponds to the preprint version. You can request a copy of the preprint by emailing the Biopolymers editorial office at biopolymers@wiley.com
Educational software for heat exchanger equipment
Authors: Cartaxo Samuel J. M. , Fernandes Fabiano A. N. 
Published: November 2009

AbstractComputer‐aided design has become extremely popular and its use in classroom can be very helpful, adding more analysis capabilities to all engineering areas. This article presents HEDes, an educational software developed to introduce heat exchanger equipments to undergraduate students and to provide unit operation courses with realistic exercises involving simulation of chemical processes. © 2009 Wiley Periodicals, Inc. Comput Appl Eng Educ 18: 193–199, 2010; Published online in Wiley InterScience (www.interscience.wiley.com); DOI 10.1002/cae.20137
Enzymatic Synthesis of Organic‐Polymer‐Grafted DNA
Authors: Baccaro Anna , Marx Andreas 
Published: November 2009

AbstractTo create bioorganic hybrid materials, interdisciplinary work in the fields of chemistry, biology and materials science is conducted. DNA block copolymers are promising hybrid materials due to the combination of properties intrinsic to both the polymer and the nucleic acid blocks. Until now, the coupling of DNA and organic polymers has been exercised post‐synthetically in solution or on solid support. Herein, we report the first enzyme‐catalysed synthesis of DNA–organic polymer chimeras. For this purpose, four novel 2′‐deoxyuridine triphosphates carrying polymer‐like moieties linked to the nucleobase were synthesised. Linear polyethylene glycol monomethyl ethers of different sizes (1) and branched polyamido dendrons with varying terminal groups (2) were chosen as building blocks. We investigated the ability of DNA polymerases to accept the copolymers in comparison to the natural substrate and showed, through primer extensions, polymerase chain reactions and rolling circle amplification, that these building blocks could serve as a surrogate for the natural thymidine. By this method, DNA hybrid materials with high molecular weight, modification density, and defined structure are accessible.
ChemInform Abstract: Investigation in the Binary System Yb—Ga: Crystal Structure of the Ga‐Rich Compound YbGa3.34.
Authors: Tillard Monique , Belin Claude 
Published: November 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: The Crystal Structure of α‐K3AlF6: Elpasolites and Double Perovskites with Broken Corner‐Sharing Connectivity of the Octahedral Framework.
Authors: Abakumov Artem M. , King Graham , Laurinavichute Veronika K. , Rozova Marina G. , Woodward Patrick M. , Antipov Evgeny V. 
Published: November 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: The Ternary System Cerium—Palladium—Silicon.
Authors: Lipatov Alexey , Gribanov Alexander , Grytsiv Andriy , Rogl Peter , Murashova Elena , Seropegin Yurii , Giester Gerald , Kalmykov Konstantin 
Published: November 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: X‐Ray Absorption Near Edge Structure and Crystallographic Studies of the Mixed Valence Oxides CaRu1‐xMnxO3.
Authors: Zhou Qingdi , Kennedy Brendan J. , Zhang Zhaoming , Jang Ling‐Yun , Aitken Jade B. 
Published: November 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Magnetic Properties of Co2V2O7 Single Crystals Grown by Flux Method.
Authors: He Zhangzhen , Yamaura Jun‐Ichi , Ueda Yutaka , Cheng Wendan 
Published: November 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Quantum Monte Carlo Simulation of Nanoscale MgH2 Cluster Thermodynamics
Authors: Wu Zhigang , Allendorf Mark D. , Grossman Jeffrey C. 
Published: November 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis of Single‐Phase Sn3P4 by an Isopiestic Method.
Authors: Ganesan Rajesh , Richter Klaus W. , Schmetterer Clemens , Effenberger Herta , Ipser Herbert 
Published: November 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Building Units and Intergrowths: Toward the Design of an Extended Family of Acentric Bi‐Based Materials with Second Harmonic Generacy.
Authors: Huve Marielle , Colmont Marie , Lejay Julien , Aschehoug Patrick , Mentre Olivier 
Published: November 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis and Structural Examination of Complexes of Am(IV) and Other Tetravalent Actinides with Lacunary Heteropolyanion α2‐P2W17O6110‐.
Authors: Sokolova Marina N. , Fedosseev Alexander M. , Andreev Grigory B. , Budantseva Nina A. , Yusov Alexander B. , Moisy Philippe 
Published: November 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Co3(SO4)3(OH)2[enH2]: A New S = 3/2 Kagome‐Type Layered Sulfate with a Unique Connectivity.
Authors: Powell Anthony V. , Leyva‐Bailen Patricia , Vaqueiro Paz , Sanchez Rodolfo D. 
Published: November 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Diastereoselective Domino Reactions of Chiral 2‐Substituted 1‐(2′,2′,3′,3′‐Tetramethylcyclopropyl)‐alkan‐1‐ols under Friedel—Crafts Conditions.
Authors: Stadler Daniel , Bach Thorsten 
Published: November 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: o‐Benzenedisulfonimide as a Powerful and Recyclable Organocatalyst for the Nazarov Reaction.
Authors: Barbero Margherita , Cadamuro Silvano , Deagostino Annamaria , Dughera Stefano , Larini Paolo , Occhiato Ernesto G. , Prandi Cristina , Tabasso Silvia , Vulcano Rosaria , Venturello Paolo 
Published: November 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Ionic Liquid Catalyzed Expeditious Synthesis of 2‐Aryl‐2,3‐dihydroquinolin‐4(1H)‐ones and 2‐Aryl‐2,3‐dihydro‐4H‐chromen‐4‐ones under Microwave Irradiation.
Authors: Kumar Dalip , Patel Gautam , Kumar Anil , Roy Ram K. 
Published: November 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: An Efficient Metal‐Free Reduction Using Diphenylsilane with (Tris‐perfluorophenyl)borane as Catalyst.
Authors: Tan MeiXuan , Zhang Yugen 
Published: November 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Ferrocene Redox Controlled Reversible Immobilization of Ruthenium Carbene in Ionic Liquid: A Versatile Catalyst for Ring‐Closing Metathesis.
Authors: Liu Guiyan , He Haiyan , Wang Jianhui 
Published: November 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: A Straightforward Protocol for One‐Pot Allylic Aminations/Stille Couplings.
Authors: Bukovec Christian , Kazmeier Uli 
Published: November 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Preparation of Polyfunctional Arylmagnesium, Arylzinc, and Benzylic Zinc Reagents by Using Magnesium in the Presence of LiCl.
Authors: Piller Fabian M. , Metzger Albrecht , Schade Matthias A. , Haag Benjamin A. , Gavryushin Andrei , Knochel Paul 
Published: November 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis of 5‐tert‐Butyl‐8,12,14‐trimethyl‐ and 5‐tert‐Butyl‐8,12,14,16‐tetramethyl[2.2]metacyclophane and Their Treatment with Lewis Acids in Benzene.
Authors: Shimizu Tomoe , Hida Katsuhiko , Yamato Takehiko 
Published: November 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: 2‐Chlorovinyl 1,1‐Dichloroethyl Ketone from 2‐Chloropropionyl Chloride and 1,2‐Dichloroethene.
Authors: Savosik V. A. , Rudyakova E. V. , Albanov A. I. , Bozhenkov G. V. , Levkovskaya G. G. 
Published: November 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.