نتایج جستجو برای: crack closing

تعداد نتایج: 40742  

Journal: :journal of artificial intelligence in electrical engineering 0
siamak ghadimi journal of artificial intelligence in electrical engineering, seyed sina kourehli journal of artificial intelligence in electrical engineering

in this paper, the crack detection and depth ratio estimation method are presented in beamlikestructures using elman networks. for this purpose, by using the frequencies of modes asinput, crack depth ratio of each element was detected as output. performance of the proposedmethod was evaluated by using three numerical scenarios of crack for fixed-simply supportedbeam consisting of a single crack...

2005
Igal Raichelgauz Karina Odinaev Yehoshua Y. Zeevi

A large class of problems requires real-time processing of complex temporal inputs in real-time. These are difficult tasks for state-of-the-art techniques, since they require capturing complex structures and relationships in massive quantities of low precision, ambiguous noisy data. A recentlyintroduced Liquid-State-Machine (LSM) paradigm provides a computational framework for applying a model ...

2011
Burr Settles

This paper describes DUALIST, an active learning annotation paradigm which solicits and learns from labels on both features (e.g., words) and instances (e.g., documents). We present a novel semi-supervised training algorithm developed for this setting, which is (1) fast enough to support real-time interactive speeds, and (2) at least as accurate as preexisting methods for learning with mixed fe...

2017
SERGEY KANAUN

An infinite elastic medium with a planar crack is considered. The crack is subjected to the pressure of fluid injected at a point on the crack surface. Description of the crack growth is based on the lubrication equation (balance of the injected fluid and the crack volume), the equation for crack opening caused by fluid pressure on the crack surface, the Poiseuille equation related local fluid ...

1998
James C. Newman

An assessment of the plasticity-induced crack-closure concept is made, in light of some of the questions that have been raised on the validity of the concept, and the assumptions that have been made concerning crack-tip damage below the crack-opening stress. The impact of using other crack-tip parameters, such as the cyclic crack-tip displacement, to model crack-growth rate behavior was studied...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی 1391

the study of air infiltration into the buildings is important from several perspectives that may be noted to energy and design of hvac systems, indoor air quality and thermal comfort and design of smoke control systems. given the importance of this issue, an experimental and numerical study of air infiltration through conventional doors and windows has been explored in iran. to this end, at fir...

2015
Melanie Despeisse Simon Ford

Additive manufacturing is heralded as a revolutionary process technology. While it has yet to cause a dramatic transformation of the manufacturing system, there are early signs of how the characteristics of this novel production process can improve resource efficiency and other sustainability aspects. In this paper, we draw on examples from a wide range of products and industries to understand ...

Journal: :تحقیقات مهندسی کشاورزی 0
عباس همت استاد گروه ماشینهای کشاورزی، دانشکده کشاورزی دانشگاه صنعتی اصفهان سیدمجید عطایی دانش آموخته سابق کارشناسی ارشد مکانیک ماشینهای کشاورزی، دانشکده کشاورزی دانشگاه صنعتی اصفهان

poor stand establishment of canola (brassica napus l.) under flatland mechanized planting and crust-forming soil is a major problem for farmers in central iran. previous research there showed that irrigated cotton emergence on crust-forming soils under flatland planting can be significantly improved using a double-disk planter with zero-pressure press wheel tires and no crust-breaking. in that ...

2007
David C. Parkes Ruggiero Cavallo Satinder Singh

We consider the problem of implementing a system-optimal decision policy in the context of self-interested agents with private state in an uncertain world. Unique to our model is that we allow both persistent agents, with an agent having a local MDP model to describe how its local world evolves given actions by a center, and also periodically-inaccessible agents, with an agent unable to report ...

Journal: :E3S web of conferences 2021

Authors of the research consider approach to assessment possibility formation stratification and shift cracks in roof extended horizontal cavity, based on method boundary elements. The algorithm implements iterative procedure variation formed crack length with control tension its tip. At same time, angle coasts closing is defined by tensile strength layer material. smooth case equality zero thi...

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