| 100039 |
Macau |
Designing Multifunctional Intelligent Autonomous Underwater Remote Operating Vehicle to perform “Search and Rescue” in the event of extreme weather flooding condition |
Pui Ching Middle School Macau |
Sin Sebastien
Afonso Da Silva Cristiano
Lao Chit Bryan |
This underwater remote operating vehicle (ROV) is designed with and without tethered operation. The operator can control the ROV from the real time first-person view in graphical user interface combined with sonar and object detection function when the tether is attached to perform search and rescue. The control tether with fiber optic lighting cable establishes a guided link medium between the possible search victim location and the rescue team. When the tether is detached, rapid deployment by a predefined set of instruction to achieve further operation range. The intelligent technologies of signal processing were used for object recognition, collision detection and sonar scanning data to enhance underwater operation. Autonomous driving is based on software development with limited capability to run in unrestricted open areas. We have achieved the design intent and confirmed the performance data in the laboratory boundary conditions.
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| 100040 |
Ukraine |
LENS WITH VARIABLE OPTICAL CHARACTERISTICS |
National Center “Junior Academy of Sciences of Ukraine” under the auspices of UNESCO |
Olga Borovyk |
Research work on creating a lens, the optical power can be changed depending on human needs. Most people have visual impairments that need to be corrected with surgery or optical devices (glasses and contact lenses). The optical characteristics of the human eye vary depending on age, health, intensity of visual load. We propose to give people the opportunity to smoothly adjust the optical power of the spectacle lens by changing the transparent tubes between the two windows of transparent films. Experimental studies have shown the possibility of adjusting the optical power of the proposed line in a wide range. Existing devices and materials for changing the optical power of the line are analyzed. The design of a lens with variable optical characteristics is proposed, which is created from two window films, the space between which is filled with liquid. Publicly available materials for the outer shell of the lens and liquid for its filling. The effect of the amount of liquid to be filled on the optical power of the lens was experimentally determined. The formula for experimental finding of focal length of a lens is entered. Novelty is impossible because you can use the lens in another field. For example, in the future it is planned to perform an experiment with a lens system to create, for example, a telescope. Key words: vision correction, lens, optical power, light refraction, glycerin, focal length.
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| 100041 |
Thailand |
Design and Prototyping of a Low-Cost Ventilator for Rural Hospitals |
Ruamrudee International School |
Miss Irawadee Thawornbut |
Irawadee Thawornbut
baidteuynumber7@gmail.com
Abstract This report includes the design and prototyping of a portable automatic bag-valve mask (BVM), or commonly known as the Ambu bag. This development is for use in emergency transport, resource-poor environments, and mass casualty cases like the COVID-19 pandemic. This device replaces the need for human operators whose job is to squeeze the BVMs for extended periods of time. The prototype is made from a stainless-steel skeleton, measuring 470 x 240 x 230 mm, with the addition of acrylic coverings. A repurposed motor from a car is used to drive the squeezing arm. The speed of the arm for inspiration and expiration along with the pausing time between each breath can be adjusted with this prototype. It also features an LCD screen to display the arm speed, along with real-time pressure graph displayed on both phones and computer monitors. For future versions, an app is to be developed to enable the control of the automatic bag-valve mask from phones and tablets, further creating ease for users and increasing portability. Additionally, important requirements will be added: alarm system for over pressurization, control for inspiration to expiration ratio, number of breaths per minute, control for tidal volume, pressure relief valve, and assist-control mode. The cost of this prototype is approximately $430. With this design of an automatic BVM, it allows for the production of a ventilator-like technology that will be able to perform main functions of basic ventilators at a fraction of the current cost.
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| 100042 |
Ukraine |
AUTONOMIC HEATING GLOVES |
National Center “Junior Academy of Sciences of Ukraine” under the auspices of UNESCO |
Taisiia Chursina |
Nowadays, some diseases are still incurable and can only be alleviated. One such disease is Raynaud's disease or Raynaud's syndrome, which is a spasm of the arteries of the fingers, rarely the feet, with cooling of the extremities. Statistics show that worldwide the percentage of patients with this disease is 3-4%. That is why the creation of a device that can help people overcome many inconveniences due to the inability to stay in the cold and humid environment without gloves or the inconvenience of existing heated gloves is relevant. And one of the solutions to this problem is to create heated gloves aimed at eliminating irritants. The relevance is also that even existing treatments, such as medication and conservative (prosthetic surgery), do not fully help sick people or can have a bad effect on the whole body and after some time cause complications. We’ve analyzed the heating gloves that are presented on the market and then, according to the information we’ve got, we developed unique value proposition, which indicates why it is worth choosing our gloves and what distinguishes them from competitors; UVP also identifies our potential customers. A financial model was also calculated to help guide the costs and benefits of this device. As a result, autonomous heated gloves were developed, as well as the most convenient and versatile design for them, based on the analysis of the disease itself, as well as the improvement of the shortcomings that are most common in analog gloves. We developed our own scheme of power supply to the fabric that conducts electric current, which was used in the design. The formed heating scheme allows to regulate the temperature and humidity coming to the parts of the hand that need to be heated. A consultation with a doctor was conducted, during which the best placement of heating elements in the created scheme was revealed. A detailed selection of materials was made, as well as the cost of a pair of gloves was calculated, taking into account all factors, including the cost of additional resources, if the project is considered commercial.
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| 100043 |
Brazil |
Biodegradation of Post-Cured Photopolymeric Resin of Stereolithography 3D Printers Using Galleria mellonella Larva. |
Fundação Escola Técnica Liberato Salzano Vieira da Cunha |
Stephanie Czaplinsky da Costa
Bruna Selau |
The present research has as main objective to degrade the post-cured photopolymer of the stereolithography 3D printer resin using Galleria mellonella larva. It is necessary to consider that the use of materials from 3D printers tends to increase considerably and in approximately seven years about 10% of everything that will be produced in the world will come from this type of printing. Considering also that the increase in population growth and technological development are linked to the increase of solid waste on the planet, in particular to polymeric materials, there is a need to degrade and give an adequate end to waste, avoiding a notorious accumulation along the time. For this purpose, Galleria mellonella larvae will be used because of it's comprovated capacity to degrade polyethylene, to find out if it is capable of biodegrading the post-cured resin of the printer. To carry out the research, compositional tests were done in partnership with the SENAI Institute for Innovation in Polymer Engineering and the creation of the larvae and degradation of the photopolymer will be carried out in partnership with UFCSPA. The data analysis will be based on DSC, TGA and ATR, that will also be applied in the larvae feces after contact with the polymer to assess for degradation. As a result of the compositional tests, the ATR showed predominantly characteristic absorptions of acrylic resin; in the TGA test, the loss of mass described in the test is related to the loss of mass of organic material, mainly polymer. Finally, in the DSC test a thermal event was observed in the heating of the sample, with peaks at 125°C, and a thermal event in the cooling of the sample, in 112°C. Based on the analysis of the results obtained, it is possible to infer that most of the composition of the photopolymer is acrylic resin. The research has the future objective of isolating the substance into the larvae responsible for degradation so that it can be degraded on industrial scales. The research started in March 2020 and is still under development due to the COVID-19 pandemic.
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| 100044 |
Switzerland |
Development of a rotor blade with optimized aerodynamics to propel a quadcopter |
Freies Gymnasium Zürich |
Max Schaldach |
Max Schaldach
max.schaldach.de@gmail.com
The aim of this paper was to design and manufacture a functional rotor for DJI’s Mavic Pro quadcopter. Five different prototypes were created with a focus on improving the rotor’s aerodynamic performance. As the basis for the calculations, the Propeller Theory by Betz and Schmitz was used. It states that an ideal rotor has a uniform distribution of the lift force acting on it. To achieve this homogeneous distribution, a rotor must be modified along several parameters. To begin with, a basic skeleton was created, consisting of 11 support points, called airfoils. They were chosen in a way that the variation of their lift coefficients resulted in a more uniform lift force distribution. The selected airfoils were then modified along two parameters: the airfoil depth L and the construction angle α_K. Their purpose was to stretch and tilt airfoils depending on their distance from the blade root, thus distributing the lift force more evenly and minimizing the drag force. After their modification, the airfoils were converted into a 3D model, printed using additive manufacturing processes, and tested on a self-built rotor test rig. The criterion for the aerodynamic performance was the rotational rate of the rotors, at which the hovering flight of the quadcopter theoretically occurs. In order for the Mavic Pro to hover, the first prototype (Design I) had to rotate at 6,800 rpm, and the second prototype (Design II) at 6,100 rpm. Both required a higher rotation rate than DJI's standard rotors with 5,600 rpm. The best performing prototype was Design II with sloped winglets with a critical rotation rate as low as 5,400 rpm. Following the tests on the stationary test rig, the rotors were tested outdoors in order to draw conclusions about the electrodynamic properties of the rotors. To keep the Mavic Pro hovering, the motors had to generate 118 watts of electrical power for Design II with sloped winglets and 110 watts for DJI's standard rotors. In summary, the initial aim was surpassed. A prototype was produced that outperformed the lift performance characteristics of the industrially produced rotors of the world market leader DJI.
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| 100045 |
South Africa |
AGRIBOT – ROBOTIC SOLUTION TO FOOD SUSTAINABILITY |
Reddam House Private School |
Talhah Patelia |
Agribot is a robotic solution for data collection in the agricultural industry. Farming is a science requiring perfect conditions for a productive yield. Agribot is developed to assist the farmer to collect data necessary for sustainable crop production. Agribot is developed to collect soil samples, plant samples, measure water conditions, take photographs, traverse hazardous terrains, conduct search and rescue missions, collect weather forecasts and location coordinates. In order to perform the above functions, Agribot is equipped with an accelerometer; gyrometer; camera; electrolysis machine, hydrogen gas sensor; robotic arm; weigh sensor; rocker boggy suspension; software defined radio (SDR); radio frequency (RF) modules; photoresistors; infrared (IR) detection sensors; location, weather and other API’s. Food sustainability is a key necessity for human survival. Robotic solutions have started playing large roles in automating farming tasks in order to assist with crop yield and the efficiency of production. Due to the unreliability of and lack of manual labour in parts of the world, agribots are playing bigger roles in assisting farmers to feed a growing and increasing population. MAKING AGRIBOT Agribot’s components were developed, designed and 3D printed. Agribot was developed using electronical, mechanical and software engineering, recycled and up cycled materials. Talhah, the developer, designed Agribot using Fusion 360. He 3D printed the entire robot including the wheels using a combination of PLA, PETG and PTE (flexible filament) using the Original Prusa i3MK2S & Original MK3S printers. The robot is designed and developed in a modular and tiered fashion to ensure that the usage is flexible. Agribot integrates mechanics, electronics, design, coding, sensors and APIs. Agribot is powered with batteries built from recycled 18650 cells. Electronics connected through THC (Through Hole Components) technology onto PCB’s, controlled with a Raspberry Pi 3b+ and Arduino’s (due, nano and 101 intel curie boards) and coded using Visual Studios-code IDE written in Python3, C++ (Arduino) and JavaScript (Node.js, express.js, react.js).
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| 100046 |
Malaysia |
HYBRID COMPOSITE FROM X-RAY WASTE |
SMK SERI DAMAI |
Nur Ain Binti Mohd Shahrum
Muhammad Ammar Bin Mohd Fakharudin |
This study considered the tensile and flexural characterization of new lighter and cheaper hybrid composite materials to replace the existing insert panel for the currently available bulletproof vest. The materials chosen included a natural fibre, i.e., kenaf fibre, chemically treated with sodium hydroxide solution, and, as a means of recycling, used x-ray films with a surface treatment. Using the traditional hand lay-up method, the materials were fabricated into seven layers of different configurations, which were then subjected to tensile and flexural tests. The findings showed that one of the configurations that consisted of both treated materials had a tensile strength of 396.9M Pa, which is quite strong, and a flexural modulus of 6.24G Pa, which makes it flexible enough to be made into wearable equipment. This configuration was then chosen to be the base design for the specimen subjected to impact test. The interfacial bond between the two distinct materials proved to be a major issue, even with the help of fibre treatment. Therefore, some improvements need to be made for the material to be comparable to existing materials performance-wise hence making this configuration suitable for ballistic application.
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| 100047 |
Nepal |
Autonomous Vehicle |
Brainycube Research Organization |
Biraj Kuwar |
This is the self-driving and navigating autonomous vehicle which follows a track. This robot is made by our group. We made this robot together assembling the parts. This robot is commonly used in industries to shift goods and product. In this robot we have arranged all the things also metal detector which buzz when a metal is detected under it. This robot helps a lot in industrial life and is also easy to make if we learn the steps. This robot also needs programming to make it work. The programming software used for it is known as Arduino IDE. This is the figure of this robot in industries.
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