نتایج جستجو برای: stressed concrete sleeper b70

تعداد نتایج: 96416  

Journal: :European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry 2013
J Nieuwenhuizen E J Hembrecht I H A Aartman J Krikken J S J Veerkamp

AIM The purpose of this study was to investigate whether there is a difference in pain and distress response of the child when using two different computer-controlled local analgesic delivery systems, the Sleeper One(®) and the WAND(®), and whether this was influenced by the anxiety level of the child. METHODS This randomised controlled trial was conducted among 112 children (56 girls) aged 4...

Journal: :Cement Science and Concrete Technology 2010

2011
Xue‐Chang Wu Chao‐Dong Qian Hai‐Huan Fang Yan‐Ping Wen Jian‐Ying Zhou Zha‐Jun Zhan Rui Ding Ou Li Haichun Gao

Paenibacillus sp. F6-B70 was selected from several dozens of isolates with activity against methicillin-resistant Staphylococcus aureus using a 16S rDNA-based screening method. F6-B70 contained polyketide synthase (PKS) and non-ribosomal peptide synthetase (NRPS) clusters in its genome revealed by PCR amplification of conserved adenylation and ketosynthase (KS) domains. Phylogenetic data sugges...

B. Babakhani, H. Rahami,

Pre-stress techniques tend to increase cross-sectional capacity and optimize design. Such features have made these techniques rather popular. Over time, these structures tend to fail, and the reduction of pre-stress force over the lifetime of the structure is said to be one of the most significant destructive factors in these structures. This decrease in force occurs due to various reasons. In ...

Journal: :Intelligent Automation & Soft Computing 2012
Jianting Zhou Fangping Liu Jun Song Jianxi Yang

In order to find the relationship between deflected pre-stressed tendons and diagonal cracks of webs and provide basis to design and construction of bridges, a characteristics section model of a long span pre-stressed concrete continuous box girder, which is now under construction in Chongqing is analyzed by using nonlinear finite element program Midas-FEA. A numerical simulation analysis to th...

2009
Magnus Johansson Harko Verhagen

The latest advancements in computer games offer a domain of human and artificial agent behaviour well suited for analysis and development based on normative multi agent systems research. One of the most influential gaming trends today, Massively Multi Online Role Playing Games (MMORPG), poses new questions about the interaction between the players in the game. If we model the players and groups...

Journal: :Journal of Vibroengineering 2022

The unintended vibrations and sound emerging from train operation have an enormous impact on the surroundings, including deterioration of way, buildings, structures. One proposed strategy to mitigate this issue is installation a rail pad inserted between steel concrete sleeper provide flexibility track cushion shocks generated by wheels’ movement. These materials nonlinear, dissipative properti...

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