نتایج جستجو برای: transport infrastructure is an important factorforthe spatialdistribution ofgoods

تعداد نتایج: 9354131  

Journal: :international journal of marine science and engineering 2013
m. mojabi k. hejazi m. karimi

sedimentation is one of the most important problems in harbors that results in considerable economic costs. harbor planforms affects the flow pattern in the harbor basin and consequently, plays an important role in sediment transport and sedimentation. in the present study, a two dimensional depth-averaged hydrodynamic and sediment transport model has been developed to investigate the effect of...

ژورنال: Journal of Railway Research 2021
Ataei, Shervan, Shariatzadeh, M,

There is an escalating demand for condition monitoring enhancement of transport infrastructures worldwide. Bridges are of vital importance in transportation infrastructure and need such monitoring. In this research, a non-contact vision-based technique called Digital Image Correlation (DIC) was used to calculate the bridge displacements. A high frame rate camera with 4K capability was used for ...

ژورنال: Journal of Railway Research 2018
Lotfizadeh Jad, Yasaman , Mahmoudabadi, Abbas ,

Iran’s geographical situation, in particular long-distance routes, makes rail transportation to be more attractive and important than the other modes. Since transport cost is the main concern for local and national authorities, Hub location is an important problem in transport planning in which transport industries are looking for selected points to change trains for passengers. In this pap...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1389

in this project, some new polyaspartimides, (pas)s, have been synthesized form michael addition reaction between new synthetic bismaleimide (bmi) and some aromatic diamines. a characteristic property of this polyaspartimides is a pendent carboxylic group, which introduced to these polymers from new bismaleimide. bismaleimides (bmi) is one of the interesting compounds, which can be self-polymeri...

ژورنال: Journal of Railway Research 2014

* Corresponding Author Email Address: [email protected] International Journal of Railway Research The Safety Level of Railway Infrastructure and Its Correlation with the Cost of Preventive and Mitigation Measures A-M. Ioannidou 1 , C. Pyrgidis 2,* 1 Hellenic Institute of Transport (HIT)-CERTH, Greece 2 Aristotle University of Thessaloniki, Greece A B S ...

پایان نامه :0 1375

to explore the idea the investingation proposed, aimed at finding whether the performances of the population of iranians students studying english in an efl context are consistent in l1 and l2 writing taks and whether there is a cross-linguistic transfer in this respect. in this regard the subjects were instructed to write four compositions-two in english and two in farsi-which consisted of an ...

Strategic management, program coordinator, which is comprehensive and continuous link with the environment and your organization's top talent, the goal of the organization is managed in a proper implementation.  Tuday One of the most important challenges facing large cities is transportation within the city. Lack of strategic planning for urban transport systems also joint ventures that replica...

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