نتایج جستجو برای: bridge components

تعداد نتایج: 439617  

Journal: :Sustainability 2022

Bridges in Ukraine are one of the most important components infrastructure, requiring attention from government agencies and constant funding. The object study was methodology for quantifying condition bridge components. Artificial Neural Network-based (ANN) tool developed to quantify technical literature analysis showed that cases datasets were obtained during inspection bridges solve problems...

Journal: :civil engineering infrastructures journal 0
freydoon rezaie assitant professor, department of civil engineering, bu-ali sina university, hamedan, iran. gona ahmadi m.sc., department of civil engineering, bu-ali sina university, hamedan, iran. seyed mohammad farnam ph.d. candidate, department of civil engineering, bu-ali sina university, hamedan, iran.

in this paper, full scale load test of a horizontally curved steel box-girder bridge is carried out in order to detect structural defects, which reportedly result in unwanted vibrations in nearby buildings. the bridge is tested under the passage of six heavy vehicles at different speeds, so as to determine its static and dynamic responses. a total number of one hundred and two (102) sensors are...

2008
M. Kluth

Since large parts of western countries' infrastructure have been erected in the early 1960's, many infrastructure buildings such as concrete bridges are now entering a critical age, where the need for continuous inspection and reconditioning is becoming apparent. Facing these challenges, many national highway authorities have developed computer systems that allow for the management of data coll...

Journal: :The journal of physical chemistry. B 2007
Erin T Chernick Qixi Mi Amy M Vega Jenny V Lockard Mark A Ratner Michael R Wasielewski

A t-butylphenylnitroxide (BPNO*) stable radical is attached to an electron donor-bridge-acceptor (D-B-A) system having well-defined distances between the components: MeOAn-6ANI-Ph(BPNO*)-NI, where MeOAn=p-methoxyaniline, 6ANI=4-(N-piperidinyl)naphthalene-1,8-dicarboximide, Ph=phenyl, and NI=naphthalene-1,8:4,5-bis(dicarboximide). MeOAn-6ANI, BPNO*, and NI are attached to the 1, 3, and 5 positio...

Journal: :Journal of bacteriology 2000
C M Hamilton H Lee P L Li D M Cook K R Piper S B von Bodman E Lanka W Ream S K Farrand

Plasmid conjugation systems are composed of two components, the DNA transfer and replication system, or Dtr, and the mating pair formation system, or Mpf. During conjugal transfer an essential factor, called the coupling protein, is thought to interface the Dtr, in the form of the relaxosome, with the Mpf, in the form of the mating bridge. These proteins, such as TraG from the IncP1 plasmid RP4...

Journal: :journal of dentistry, tehran university of medical sciences 0
sasan rasaeipour hakimeh siadat amiralireza rasouli neda sajedinejadd safoura ghodsi

dental implants have provided exceptional rehabilitative options for edentulous and partially edentulous patients. however, as more implants come into play, the more the clinicians come across problems where specific considerations must be taken into account to meet expectations. the toronto bridge is a treatment modality proposed for restoring several teeth lost in patients with increased crow...

Journal: :the archives of bone and joint surgery 0
seyed taghi nourbakhsh knee and sport medicine research and education center, milad hospital, tehran, iran fateme bahramian knee and sport medicine research and education center, milad hospital, tehran, iran zohreh zafarani knee and sport medicine research and education center, milad hospital, tehran, iran ardeshir alidousti medical student hormozgan university of medical sciences, knee and sport medicine research and education center, milad hospital, tehran, iran hamidreza aslani shahid beheshti university of medical sciences, knee and sport medicine education and research center, tehran, iran

this study redescribes an arthroscopic bridge technique for repair of avulsion of the posterior cruciate ligament. the procedure is performed step-to-step. in this technique we created two bone tunnels in the anterior aspect of the tibia and inferior medial of the tibia tuberosity and then create suture fixation of the fragment using the suture bridge. the arthroscopic bridge technique was used...

Journal: :Technique et Science Informatiques 2008
Arnaud Lanoix Samuel Colin Jeanine Souquières

In a software component-based development approach, components are considered as black boxes. A component-based application consists of assembled components which communicate by the means of their interfaces. A formal description of these interfaces is therefore required to check their compatibility. In general, interfaces are not directly compatible and an adapter is required to bridge the gap...

2013
Cheng-Tao Tsai Jye-Chau Su Sheng-Yu Tseng

This paper presents comparison between phase-shift full-bridge converters with noncoupled and coupled current-doubler rectifier. In high current capability and high step-down voltage conversion, a phase-shift full-bridge converter with a conventional current-doubler rectifier has the common limitations of extremely low duty ratio and high component stresses. To overcome these limitations, a pha...

2011
Chui-Te Chiu Tseng-Hsing Hsu Ming-Teh Wang Hsien-Yen Chiu

Steel bridge erection requires a series of processes in the construction site including shipping, sequentially lifting, and installing bridge components that are fabricated in the factory. Each process is critical and the risks are high due to the fact that conditions in the field are far more complex than in the factory. A detailed lifting plan is important to ensure the successful completion ...

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