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Sealing System (sealing + system)

Distribution by Scientific Domains
Engineering50%

Selected Abstracts

Gußasphalt-Dichtsysteme in Anlagen zum Lagern, Abfüllen und Umschlagen wassergefährdender Stoffe , Neue allgemeine bauaufsichtliche Zulassungen

BAUTECHNIK, Issue 8 2004
Ullrich Kluge Dipl.-Ing.
Anlagen, Anlagenteile und technische Schutzvorkehrungen für Anlagen zum Umgang mit wassergefährdenden Stoffen müssen Anforderungen aus verschiedenen Rechtsbereichen wie z. B. Wasserrecht, Baurecht, Arbeitsschutzrecht usw. erfüllen. Das Deutsche Institut für Bautechnik (DIBt) erteilt allgemeine bauaufsichtliche Zulassungen für Abdichtungsmittel zur Verwendung in Dichtkonstruktionen in Anlagen zum Lagern, Abfüllen und Umschlagen wassergefährdender Stoffe (LAU-Anlagen). Die Anforderungen an die Materialien und die Prüfverfahren für deren Nachweis sind in den Zulassungsgrundsätzen bzw. Prüfprogrammen des DIBt niedergelegt. Durch das DIBt wurden neue allgemeine bauaufsichtliche Zulassungen für Gußasphalt-Dichtsysteme in LAU-Anlagen erteilt. Flouting asphalt in sealing systems for plants used for the containment, handling and filling substances hazardous to water, new technical approvals. Sealing systems in plants, parts of them and technical protection devises for the dealing with substances hazardous to water have to satisfy certain requirements as laid down in the different fiends of national public law, for example law relating to water, building regulations, law on protection of work, etc. The Deutsche Institut für Bautechnik (DIBt) granted technical approvals in the field of sealing systems for plants used for the containment, handling and filling substances hazardous to water. The requirements of materials and for the tests for their properties of them are laid down in the principles or test programs for technical approvals by DIBt. The Deutsche Institut für Bautechnik (DIBt) granted new technical approvals for sealing systems made of flouting asphalt for plants used for the containment, handling and filling substances hazardous to water. [source]

Safety and efficacy of using the LigaSure vessel sealing system for securing the pedicles in vaginal hysterectomy: randomised controlled trial

BJOG : AN INTERNATIONAL JOURNAL OF OBSTETRICS & GYNAECOLOGY, Issue 3 2005
M.A. Hefni
Objective To assess the safety and efficacy of using the LigaSure vessel sealing system for securing the pedicles during vaginal hysterectomy in comparison with the conventional method of securing the pedicles by suture ligation. Design Randomised controlled trial. Setting Gynaecology Department, Benenden Hospital, Kent. Population One hundred and sixteen women undergoing vaginal hysterectomy were prospectively randomised to either LigaSure (Group I) or suture ligation (Group II) for securing the pedicles. Methods Data of patients were collected prospectively. Statistical analysis was performed using the Mann,Whitney U test, ,2 and Fisher's exact test as appropriate. Main outcome measures Operating time, operative blood loss and peri-operative complications. Results The operating time was significantly shorter in the LigaSure group compared with the control group (P < 0.04). There was no statistical significant difference between the two groups in operative blood loss (P= 0.433), but peri-operative haemorrhagic complications were less frequent in the LigaSure group (0%vs 6.8%, P= 0.057). Four patients in the control group required either conversion to laparotomy because of bleeding, return to theatre for immediate post-operative haemorrhage or readmission for vault haematoma, whereas none in the LigaSure group had bleeding from unsecured pedicles. Conclusion The LigaSure vessel sealing system is a safe alternative for securing pedicles in vaginal hysterectomy when compared with conventional suture ligation. Larger studies are required to determine its place in gynaecological surgery. [source]

Fugenausbildung und -abdichtung bei wasserundurchlässigen Bauwerken aus Beton: Neue Regelwerke setzen Maßstäbe

BETON- UND STAHLBETONBAU, Issue 12 2004
Rainer Hohmann Prof. Dr.-Ing.
Fugen stellen bei wasserundurchlässigen Bauwerken aus Beton häufig eine Schwachstelle dar. Sie erfordern die besondere Beachtung des Planers und der Ausführenden. Eine fachgerechte Handhabung sowohl durch den Planer als auch durch den Ausführenden ist eine entscheidende Voraussetzung für eine funktionierende Abdichtung. Neue Regelwerke, wie die DAfStb-Richtlinie "Wasserundurchlässige Bauwerke aus Beton" und die DIN V 18197 "Abdichten von Fugen in Beton mit Fugenbändern" geben Hinweise, wie Abdichtungssysteme richtig einzusetzen und zu dimensionieren sind. In dem Beitrag wird auf die neuen Regelwerke und die wesentlichen Regelungen für die Abdichtung eingegangen. Joint Design and Joint Sealing in Waterproof Concrete Structures , New Regulations are setting New Sealing Standards In many cases joints in structures of waterproof concrete turn out to be a weak point. For this reason they demand the care and attention of the designer and the contractor. A professional application as well by the planner as by the contractor is a decisive precondition for an effective operation of the joint sealing. New regulations like DAfStb-code: "Waterproof concrete structures" and the German standard DIN V 18197: "Sealing of joints in concrete with waterstops" give details how the sealing systems should be used and dimensioned correctly. This article goes into the details of the new regulations and the basic rules for sealing. [source]