ABSTRACT: This study focuses on investigating the relationship between the bearing capacity of uniform sands and fractal dimensions calculated by different methods. California bearing ratio (CBR) tests are performed on 15 different soils to estimate the bearing capacities. A minimum number of 100 grains for each soil are investigated under a stereomicroscope. Applying the areaperimeter, line di...

The roller bearing characteristic frequencies contain very little energy, and are usually overwhelmed by noise and higher levels of structural vibrations. Therefore, envelope spectrum analysis is widely used to detection bearing localized fault. In order to overcome the shortcomings in the traditional envelope analysis in which manually specifying a resonant frequency band is required, a new ap...

Durability problem of reinforced concrete for underground structures is a hot issue in the field of structural engineering. For underground structures, the prediction of structural service life and methodology for durability design are needed to estimate structural durability. Taking the case of Xiamen Xiang’an subsea tunnel as background, which is designed to meet the requirement of 100-year s...

babbitt is a white silvery alloy that composed of tin, lead, copper and antimony. this alloy is the most current bearing alloy in industrial applications. the characteristics of this alloy, such as high wearing resistance and low coefficient of friction, have converted it into a bearing cover. the target of this study is investigation on the effects of alloy elements on wearing and micro-struct...

The paper presents the results of research on utilization textile denim sludge waste, which was used to obtain concrete and mortar. For this purpose, cement sand were replaced with powdered in amount 5 10 wt. initially analyzed by FTIR XRD identify functional groups chemical composition, respectively. Replacing resulted a significant reduction compressive flexural strength (> 50%). Significa...

The cis-acting gene regulating specifically the inducibility of lambda 1-bearing B cells has been mapped within 2.9 cM of the structural gene. If the lambda 1lo-phenotype is due to the gly leads to val interchange in C lambda 1, then an argument can be made that (a) the lambda 1lo-phenotype is due to inefficient induction of lambda 1lo-bearing B cells and (b) B cell triggering is dependent upon...