Urban driving characteristics with a focus on energy consumption have been tested in Riga on three main city streets with inflexible coordinated traffic lights control. […]
Polymer acrylic hydrogels with protein filler: Synthesis and characterization
The water-retention hydrogel composites were synthesized by the free-radical polymerization depending on the order of addition filler of the protein hydrolysate. As the filler was […]
Combustion characteristics of compression ignition engine operating on rapeseed oil-diesel fuel blends
The effect of biofuels on the operational parameters of the combustion engines, such as performance parameters or emission production, are monitored often. These changes are, […]
Autonomous photovoltaic system for night-time lighting in the stable
Autonomous photovoltaic (PV) systems are suitable, for example, for powering various appliances or scientific instruments in the field, for automatic data collection, for signaling, etc. […]
Improving the quality of critical tractor parts through the dynamic stabilisation of the manufacturing process in regard to CNC machines
This article focuses on the evaluation of a rod improvement which is considered in detail below. The rod in question is part of an hydraulic […]
Analysis of plant materials pre-treated by steam explosion technology for their usability as insulating materials
Raw materials of annual plants fibres are not easily usable for industrial production applications. Pre-treatment of the annual plant fibres is necessary to increase the […]
Contamination of transmission and hydraulic oils in agricultural tractors and proposal of by-pass filtration system
Tractors use various types of lubricating oils in transmission and hydraulic system. Oils are contaminated by different ways depending on the work of the lubricated […]
Work posture load evaluation in medium size metal processing enterprise in Latvia
The aim of this study was to evaluate the exposure of individual workers to ergonomic risk factors associated with upper, lower extremities and trunk WRMSDs […]
Analysis of operating parameters of hybrid vehicle under real traffic condition
Nowadays, protecting the environment and reducing harmful emissions is an increasingly discussed topic. One way to reduce vehicle emissions, especially for individual car traffic, is […]
Effect of long-term operation of combustion engine running on n-butanol – rapeseed oil – diesel fuel blend
The short time use of biofuels in compression ignition engines is being studied by many authors. However, in many cases the real long–term operation of […]