نتایج جستجو برای: cracking pattern

تعداد نتایج: 358779  

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2010
Kwan-tai Leung Zoltán Néda

We address the slow generation of crack networks as a problem of pattern formation. Issues of pattern selection and the associated statistical properties were considered by means of a detailed theoretical analysis and simulations of a discrete spring-block model. Developed after observations in desiccation experiments, the model describes the nucleation and propagation of cracks in a layer in c...

2017
Pamela S. Williams John A. Chester

This project examines the nature of password cracking and modern applications. Several applications for different platforms are studied. Different methods of cracking are explained, including dictionary attack, brute force, and rainbow tables. Password cracking across different mediums is examined. Hashing and how it affects password cracking is discussed. An implementation of two hash-based pa...

Journal: :journal of nanostructures 2013
a. nemati kharat r. zafari

current article describes application of zeolites in fluid catalytic cracking (fcc). the use of several zeolitic additives for the production light olefins and reduction of pollutants is described. application of zeolites as fluid catalytic cracking (fcc) catalysts and additives due to the presence of active acid sites in the zeolite framework  increase the formation of desired cracking product...

2012
Cihan H. Dagli Ahmed H. Al-Rahmani Hayder A. Rasheed Yacoub Najjar

This study aims to facilitate damage detection in concrete bridge girders without the need for visual inspection while minimizing field measurements. Beams with different material parameters and cracking patterns are modeled using mechanics-based ABAQUS finite element analysis software program in order to obtain stiffness values at specified nodes. The resulting database is then used to train a...

Journal: :CoRR 2013
Meenesh Bhardwaj

Variant Stochastic cracking is a significantly more resilient approach to adaptive indexing. It showed [1]that Stochastic cracking uses each query as a hint on how to reorganize data, but not blindly so; it gains resilience and avoids performance bottlenecks by deliberately applying certain arbitrary choices in its decision making. Therefore bring, adaptive indexing forward to a mature formulat...

2006
K. A. Mahgoub S. Al-Khattaf

_____________________________________________________________ Different catalysts based on Y-zeolite, ZSM-5 and amorphous kaolin were prepared and characterized. The catalytic cracking of 1,3,5-triisopropylbenzene (1,3,5-TIPB), 1,4diisopropylbenzene (1,4-DIPB) and n-dodecane were used to investigate the effect of catalyst nature on the catalytic performance. Cracking the largest molecule (1,3,5...

2009
M. Hanafy

The varestraint cracking test was carried out to assess the hot cracking tendency of alloy 800 at different welding conditions and augmented strain levels. The test results revealed that the hot cracking susceptibility of alloy 800 increases with increasing the heat input and augmented strain levels. This emphasizes the role of constraint either internally induced or externally applied to the w...

2017
Sunghwan Kim Halil Ceylan Kasthurirangan Gopalakrishnan

In support of the initiatives for implementing the new MechanisticEmpirical Pavement Design Guide (MEPDG) in Iowa, a preliminary sensitivity study was undertaken to assess the comparative effect of design input parameters pertaining to material properties, traffic and climate on performance of two existing flexible pavements in Iowa with relatively thick Asphalt Concrete (AC) layers. A total of...

Journal: :international journal of civil engineering 0
m. s. lee hanyang university, erica campus, 1271 sa-3-dong, sangrok-gu, ansan, gyunggi-do 426-791, korea(r) t. s. seo dankook university, 126 jukjeon-dong, suji-gu, yongin-si, gyeonggi-do, republic of korea, 448-701

because thin plate reinforced concrete members such as walls and slabs are greatly influenced by the drying shrinkage, cracks can occur in these members due to the restraint of the volume change caused by drying shrinkage. therefore, the control of cracking due to drying shrinkage is very important in building construction that the thin plate members are frequently used. however, few researches...

2007
J. A. Cline

Cline, J. A. and Trought, M. 2007. Effect of gibberellic acid on fruit cracking and quality of Bing and Sam sweet cherries. Can. J. Plant Sci. 87: 545–550. Rain-induced cracking of sweet cherries (Prunus avium L.) is a major problem in many cherry growing regions throughout the world. One method to reduce cracking is to grow cracking resistant cultivars; however, no completely effective control...

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