نتایج جستجو برای: tower length

تعداد نتایج: 317246  

2012
Pingsheng Bridge Sanchaji Bridge Wanxin Bridge Jiangdong Bridge Liede Bridge Nanjijiang Xinzhou Bridge

The cable tower of Liede Bridge is a double-column curved-lever arched-beam portal framed structure. Being novel and unique in structure, its cable tower differs in complexity from traditional ones. This paper analyzes the ultimate load capacity of cable tower by adopting the finite element calculations and model tests which indicate that constitutive relations applied here give a better simula...

Journal: :Remote Sensing 2015
Qiting Chen Li Jia Ronald Hutjes Massimo Menenti

Most land surface models require information on aerodynamic roughness length and its temporal and spatial variability. This research presents a practical approach for determining the aerodynamic roughness length at fine temporal and spatial resolution over the landscape by combining remote sensing and ground measurements. The basic framework of Raupach, with the bulk surface parameters redefine...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده فنی 1390

برجهای تقطیر یکی از تجهیزات پر مصرف در پالایشگاها و واحدهای پتروشیمی می باشد.از انواع مهم این برج ها می توان برج های سینی دار (tray) و برج های پر شده (packed) را نام برد. نوع دیگری از برج های تقطیر نیز وجود دارد که به آن برج tray –packed می گویند که ترکیبی از برج سینی دار و پر شده می باشد. در این پایان نامه در فصل 1و2 ابتدا به معرفی برج های سینی دار و پر شده و مراحل طراحی هر یک از آن ها و همچنی...

Journal: :نشریه دانشکده فنی 0
علی اصغر حمیدی اصغر صدیق زاده منیره طاهرخانی علیرضا کمیزی

in this investigation, the performance of a tower for absorption of sulphur dioxide gas into calcium carbonate solution has been studied. the trays had no downcomer and the tower itself was a scaled down pilot from industrial equipment. the industrial scale tower was used for clean up of 110000 m3/hr gas using 40 m3/hr alkaline solution. the study was composed of two parts. in the first section...

2016
Ling-Yin Liang Patricia A. Shewokis Nancy Getchell

The prefrontal cortex (PFC) plays an important role in cognitive function, involved in Executive Functions (EFs) such as planning, working memory, and inhibition. Activation in the PFC also occurs during some motor activities. One commonly used tool to assess EF is the Tower of Hanoi, demonstrating sensitivity to PFC dysfunction. However, limited neuroimaging evidence is available to support th...

Journal: :international journal of architectural engineering and urban planning 0
mohammadjavad mahdavinejad tarbiat modares university, tehran, iran mohammadhossein ghasempoorabadi honar university kavan javanrudi tarbiat modares university, tehran, iran

this paper is an attempt to numerical modeling and experimental study of air flow in the yazdi wind-towers. wind towers has been known as one of the most effective climatic elements in iranian traditional architecture. this paper is an attempt to evaluating yazdi wind-tower to discussion the two main questions: 1. what is the role of orientation of wind-towers span, regarding to climate and hei...

Journal: :معماری و شهرسازی 0
محمدجواد مهدوی نژاد استادیار گروه معماری دانشکده هنر و معماری، دانشگاه تربیت مدرس کاوان جوانرودی دانشجوی کارشناسی‎ارشد معماری-گرایش فنی، دانشکده هنر و معماری، دانشگاه تربیت مدرس

this article is a comparative evaluation of airflow in two kinds of yazdi and kermani wind-towers. in the late decades of twenty century regarding to high population growth rate and energy crisis, vernacular architecture and its passive methods for gaining thermal comfort, has been strongly focused. moreover, a huge scientific movement setup for researches deep in exploring passive cooling and ...

Journal: :iranian journal of psychiatry 0
javad alaghband-rad department of psychiatry, roozbeh psychiatry hospital, tehran university of medical sciences, tehran, iran institute for cognitive science studies (icss), tehran, iran reza rad goodarzi institute for cognitive science studies (icss), tehran, iran mehdi tehrani-doost department of psychiatry, roozbeh psychiatry hospital, tehran university of medical sciences, tehran, iran institute for cognitive science studies (icss), tehran, iran psychiatry & psychology research center, tehran university of medical sciences, tehran, iran mitra sepasi department of psychiatry, roozbeh psychiatry hospital, tehran university of medical sciences, tehran, iran

objective: the purpose of this study is to compare the executive functions children and adolescents who suffer from attention deficit hyperactivity disorder (adhd) with normal children. method: twenty children with adhd were compared to 19 healthy children terms of some executive functions using the computerized version of tower london, continuous performance test (cpt), and stroop color test. ...

We develop a general framework for various lattice-valued, probabilistic and approach uniform convergence spaces. To this end, we use the concept of $s$-stratified $LM$-filter, where $L$ and $M$ are suitable frames. A stratified $LMN$-uniform convergence tower is then a family of structures indexed by a quantale $N$. For different choices of $L,M$ and $N$ we obtain the lattice-valued, probabili...

A. Kaveh, Y. Vazirinia,

Tower cranes are major and expensive equipment that are extensively used at building construction projects and harbors for lifting heavy objects to demand points. The tower crane locating problem to position a tower crane and supply points in a building construction site for supplying all requests in minimum time, has been raised from more than twenty years ago. This problem has already been so...

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