Anthropometry medical measuring system is very important in health sector in taking the physical measurement of patients. The research focused on the need to consider a parametric design of height and weight measuring system with the enlightenment of basic design principle. The materials involved for the parametric design of this medical measuring system under study are Load Cells with Strain Gauge (weight sensor), Sonar with Ultrasonic Sensors (height sensor), Liquid Crystal Display, Medium Density Fibreboard, Rubber Mounting, Microcontroller Arduino Board and other important accessories. The results from the design analysis revealed that the system weight sensor platform has shear force of 630 N, maximum bending moment of 126 Nm. The compressive stress that could be induced during measurement of maximum human weight is 6 kN/m 2 and stress that could be induced due to maximum bending moment is amount to 605 N/m 2 . The amount by which weight sensor platform could deflect when subjected to bending moment is 0.000004 m. These values indicate that the design is safe for operation which is far lesser than the property parameters of the materials used for the weight sensor platform. The designed height of the system for the measuring of the height is about 2.1 m (7 Feet), the area of the stand platform for the measuring of the weight is about 0.2 m 2 . The weight sensor for the design could measure from 1kg to 200 kg with accuracy of about ±0.1 kg and height measuring sensor could measure through a scanning range of 0.4 to 2.5 m with accuracy of about ±1 mm.
Agriculture reflects a profound change in the relationship between humans and the environment. Agricultural development entails a step-up in the extraction of natural resources from the environment. Agricultural machinery is a device that significantly reduces the amount of human labour required for food and fibre production. For the agricultural industry, robots provide numerous advantages, including improved fresh produce quality and lower production costs, as well as the ability to work autonomously to supplement or replace human labour. Harvesting is one of the most common areas where robots are used in agriculture today. This article highlights the wide range of actions that go into the production of food and fibre. It also underlines the significance of robot development for agricultural uses. The discovery highlighted the significant benefit of robots in agricultural techniques for effective mechanised farming in the agricultural industry. Finally, agricultural robots are critical equipment for performing repetitive tasks faster, cheaper, and more accurately than humans in farm cultural practices, inspection, and harvesting, as well as post-harvest handling.
There are several sources of renewable energy such as tidal, wave, wind, hydro-electric, geothermal,ocean thermal conversion (OTEC), solar and biofuels. All the renewable energy sources have receivedincreasing attention in such a way that they do not have a fuel cycle in which they are regarded asenvironmentally more favourable. Renewable energy sources introduce environmental impacts of theirown in many ways. The wind and solar energies have the potential to reduce grievous environmentalimpacts caused by conventional energy sources. This study considered positive and negativeenvironmental impacts of wind and solar energies. Wind and solar energies do not generate atmosphericcontaminants. The study provides ways to understand which one of these renewable energy sources havethe highest adverse environmental effects due to their facilities. Conclusively, wind energy facilitieshave adverse environmental impacts which include aesthetic and other impacts on humans and effectson ecosystems; solar energy does not have such adverse environmental impacts.
This study was carried out to evaluate the effect of pre-treatment technique (blanching) and temperature on the drying characteristics of the red date variety. Thin layer drying experiments were conducted at varying drying temperatures of 50, 60 and 70 °C using electrical laboratory oven and cabinet dryer with a constant air velocity of 1.4 m/s. Other sets of samples were blanched at 50 °C for 2-, 5- and 10-minutes before being dried at varying drying temperatures of 50, 60 and 70 °C respectively under the same drying conditions. The drying process took place mainly in the falling rate period indicating that the mechanism that governed moisture movement in the samples was diffusion.The drying curve showed that blanched red date fruits had higher drying rate than the un-blanched samples. The result is useful for farmers, researchers, and the processing industry in designing a reliable machine for processing red date fruit which will boost the small and medium scale production of the fruit in Nigeria.
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