The workplace influences the safety, health, and productivity of workers at multiple levels. To protect and promote total worker health, smart hardware, and software tools have emerged for the identification, elimination, substitution, and control of occupational hazards. Wearable devices enable constant monitoring of individual workers and the environment, whereas connected worker solutions provide contextual information and decision support. Here, the recent trends in commercial workplace tech...

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Doi:10.1002/aisy.202100099

Mobile ropeways, the equipment of which is located on the base chassis of wheeled or tracked vehicles of high carrying capacity, are a promising type of transport and overloading equipment. Specific design features, modes and conditions of their operation in comparison with traditional freight and passenger fixed-line cableways require the development of special design methods and design calculations for this type of machine. The article discusses the problem of modeling working hydrodynamic pro...

Civil Engineering  Mechanical Engineering 

Doi:10.22281/2413-9920-2019-05-04-462-480

The article describes the design and features of the original energy-efficient manipulation system for loading and unloading operations using a mobile transport and technological machine. The design feature of this manipulation system is the replacement of the hydraulic mechanism of the rotary motion of the most loaded link with the mechanism of translational motion. This made it possible to solve two important tasks: to significantly reduce the magnitude of the operational load that the power c...

Civil Engineering  Mechanical Engineering 

Doi:https://doi.org/10.22281/2413-9920-2019-05-04-450-461

Studies about fluid-structure interaction (FSI) problems do not have a long history. Fluid and structure has been separately modelled with different formulations by researchers. However, studies about FSI are limited and problems investigated in these studies are mostly out of civil engineering areas. Problems such as dam-breaking, flood effect on structure, slushing effect and tsunami are the problems consisting of a fluid structure interaction in civil engineering. The present study, a fluid s...

Civil Engineering 

Doi:10.21324/dacd.292347

Electricity price forecasting has become an integral part of power system operation and control. This paper presents an artificial neural network (ANN), based approach for estimating short-term wholesale electricity price using past price and demand data. In other to obtain accurate model, several combination of input parameters was considered. 70% of the data sample was used for training, 15% for validation and 15% for testing. The ANN model was trained in MATLAB using Levenberg-Marquardt back ...

Industrial Engineering  Civil Engineering 

Doi:10.5176/2251-3701_3.3.148

This research is a study of factors affecting the delay of the construction period by working together during construction between main contractors and nominated sub-contractors in high rise building at Bangkok and vicinity. The focus of factors which cause delays to the structural works, architectural work, electrical - mechanical works and sanitation work in General Contract (Dominated –Sub-contract) and Nominated Sub-contract. This study used questionnaires and interviews as tool for collecti...

Industrial Engineering  Civil Engineering 

Doi:10.5176/2251-3701_3.3.149

This paper aims to understand the power and governance questions in the case of co-location of university (NTNU) campuses in the city of Trondheim. NTNU has three main campuses; 1. Gl？shaugen, the technical campus, 2. Dragvoll, the social and human science campus, and 3. ？ya, the hospital and medical campus. Since NTNU was built, the colocation of its campuses was on the agenda in order to increase the interdisciplinary and collaboration between them. In 2000s, the desire of co-locating the camp...

Civil Engineering  Computer Engineering 

Doi:10.5176/2251-3701_4.2.190

Mechanical Engineering students are exposed to drawing both 2D and 3D using CAD software in their curriculum. Recently, 2nd Year Mechanical Engineering students from Roever Engineering College, Tamil Nadu, India scored poorly in 5 skills namely Theoretical and Conceptual Knowledge, Visualization skill, Working Knowledge, Speed and Accuracy of Drawing even when their capabilities are beyond those scores. When enquired on this, the students stated that the exposure to both 2D and 3D CAD software t...

Civil Engineering 

Doi:10.5176/2251-3701_4.2.189

The present paper investigates measures for successful design of dam bottom outlets. First, some of definitions and functions of bottom outlets are provided. Associated challenges and solutions will be discussed. Different parts of bottom outlets like intake structures, conduit, control structure and outlet structures are discussed and measures for successful design for each of them are presented with related design cases. Also risk management measures for ensuring successful performance of bott...

Industrial Engineering  Civil Engineering 

Doi:10.5176/2251-3701_3.3.150

Regardless of material regulations at the supply source or post-construction quality inspection systems, certain levels of model management systems have been developed. However, in the hospital waiting room, the measured formaldehyde concentration in the air reached 0.99 ppm, which is 12 times higher than that of the standard value. The formaldehyde emission rates measured in the building materials of the private housings or hospital waiting room ranged from 158 to 238 μg/m2？h, which exceed both...

Industrial Engineering  Civil Engineering  Computer Engineering  Mechanical Engineering 

Doi:10.5176/2251-3701_3.3.151