are collaborating to evaluate the performances of three flexible pavement designs, including two perpetual/long-life (with and without the rich bottom mix (RBM) layer) and one conventional pavement designs. The three flexible pavement designs are being monitored by strain, pressure, temperature and moisture sensors, which are installed in the asphalt, granular and sub-base layers. Two types of ...

A three-dimensional finite element model was developed to investigate dynamic response of track-embankment-ground system subjected to moving loads caused by high speed trains. The track-embankment-ground systems such as the sleepers, the ballast, the embankment, and the ground are represented by 8-noded solid elements. The infinite elements are used to represent the infinite boundary condition ...

Visitation counts are the measures most widely used by park managers to demonstrate accountability and good stewardship of the public resources that legislatures invest in parks. Ostensibly, counting visitors may appear to be a simple task, but experienced park managers are aware that it is a complicated and difficult challenge with three dimensions: human, logistical, and technical. Part of th...

Abstract The results of research and development experimental-design activities on creating the front driving axle with an increased agrotechnical clearance for perspective universal cotton cultivating tractor 4K4 are specified in article. application propulsion scheme design a cotton-growing row-crop will ensure aggregation main set machines complex working width four or more rows due to tract...

The axle shaft is a component of the power transfer system which often experiences mechanical failure. purpose this study was to determine degree fatigue and hardness metal shafts with variations in frictional load as information on friction welding recommendations shafts. research method used experimental method, way compare specimens loads 2 kg, 4 6 kg using Rockwell testing rotary bending ma...

The accuracy in determined energy consumption and running time of trains, by means of computer simulation, is dependent upon the various models used. This thesis aims at developing validated models of running resistance, train and of a general driver, all based on full scale testing. A partly new simple methodology for determining running resistance, called by energy coasting method is develope...

The main role of the present work is to conduct pavement performance evaluation of Cell Filled Concrete road constructed in Sidlaghatta taluk of Chickaballapura District in Karnataka. The study area selected is from Anur Hunasenahalli to T-07 (2.16 km) in Sidlaghatta Taluk. The above selected road is categorized under Village Roads (VR) and is constructed under the Technology Demonstration Proj...

El tránsito vehicular proyectado para el periodo de diseño pavimentos es una las más importantes variables que determinan los espesores requeridos su diseño. Debido al comportamiento flujos en carreteras Nicaragua, cuya referencia está indicada anuarios estadísticos publicados por Ministerio Transporte e Infraestructura, necesario contar con un referente la metodología determinación adecuada ta...

A 1,2-bis(pyridinium)ethane type axle containing a terpyridine chelate group, when combined with 24-membered crown ethers, forms [2]pseudorotaxanes, the stability of which can be controlled by coordination of metal ions with different geometries.

Weigh-in-motion (WIM) devices record vehicle axle loads on highways. WIM data include loads, inter-axle spacings, classification, gross weights, length, and travel speed. Pavement design, management, performance studies all require data, directly as a spectrum or indirectly standard axles. In 2016, 132 were operating California’s highway network, one of the densest best-maintained clusters in U...