نتایج جستجو برای: infrastructure construction

تعداد نتایج: 297712  

2005
G. A. Keoleian A. Kendall R. Chandler G. E. Helfand M. Lepech V. C. Li

Concrete infrastructure systems require large capital investments and resource flows to construct and maintain. An integrated life cycle assessment and cost model was developed to evaluate infrastructure sustainability, and compare alternative materials and designs using environmental, economic and social indicators. The model is applied to two alternative concrete bridge deck designs: one a co...

2015
E. Hayat R. Haigh

s: Purpose-The reconstruction of road infrastructure in the post-disaster context require different approach when compared with road projects in the normal development context. Disaster recovery projects are seen as having their own unique identity, particularly due to stakeholder issues, resource challenges, capability issues, and even long-term reliability concerns. This paper invites a discu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم 1377

this thesis deals essentially (but not from all aspects) with the extension of the notion of semigroup compactification and the construction of a general theory of semitopological nonaffine (affine) transformation semigroup compactifications. it determines those compactification which are universal with respect to some algebric or topological properties. as an application of the theory, it is i...

Journal: :جنگل و فرآورده های چوب 0
وحید معظمی دانشجوی کارشناسی ‏ارشد فرآورده های چندسازة چوبی دانشکدۀ منابع طبیعی دانشگاه زابل، زابل، ایران مرتضی ناظریان دانشیار گروه علوم و صنایع چوب و کاغذ دانشکدۀ منابع طبیعی دانشگاه زابل، زابل، ایران رحیم محبی گرگری مربی گروه علوم و صنایع چوب و کاغذ دانشکدۀ منابع طبیعی دانشگاه زابل، زابل، ایران

the determination of effective indicators in order to decide on the location of industrial units with the aim of optimizing the use of raw material, reduce costs and waste and marketing of products is very important. determining the effective indicators in optimal choice for seating block board unites (with use the back of scrap plywood, twigs little low diameter wood’s) in country was target o...

Journal: :Computer Communications 2010
Jun Lei Xiaoming Fu Dieter Hogrefe

Traditionally, Internet Service Providers (ISPs) have to interconnect with content providers to provide network services to customers. Current business model that connectivity and bandwidth become commodities has motivated ISPs to distribute content and other application-specific services to their customers using their own infrastructure. It is desirable for ISPs to economize existing infrastru...

2006
Mirosław J. Skibniewski Won-Suk Jang Glenn L. Martin Hall

A large-scale of civil infrastructure systems is associated with great amounts of project resources and activities interoperated with various participants and organizations. Well-defined methodology for information acquisition and communication became more critical in the management of civil infrastructure than ever before. Rapidly emerging wireless sensor technology has been drawing a log of a...

2010
Vishal Kumar Narottam Chand

Vehicular Ad-Hoc Networks (VANETs), a special kind of Mobile Ad-Hoc Networks (MANETs), where wirelessequipped (road) vehicles form a network without any additional infrastructure. Due to the fast growing number of vehicles and saturation of the transportation infrastructure traffic congestion, accidents and transportation delays become unavoidable. Several measures are implemented in order to s...

2016
Zaheer Ahmad Nasir Luiza Cintra Campos Nicola Christie Ian Colbeck

Exposure to airborne biological hazards in an ever expanding urban transport infrastructure and highly diverse mobile population is of growing concern, in terms of both public health and biosecurity. The existing policies and practices on design, construction and operation of these infrastructures may have severe implications for airborne disease transmission, particularly, in the event of a pa...

2000
John Knight Robert Schutt Kevin Sullivan

The survivability of critical infrastructures is not assured today because of their reliance on complex, vulnerable information systems. Survivability enhancement will require changes to system architectures. Experimental systems research in this area is complicated by the private ownership, criticality, and complexity of infrastructure systems. A key research method is therefore to explore and...

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