Polytechnica
2520-8063
2520-8497
Cơ quản chủ quản: N/A
Các bài báo tiêu biểu
Preparation and Characterization of Hybrid Composite Film Based on Synthetic and Natural Materials
- 2019
Assessment of Granite – Kaolin Composite Bricks as Storage Barrier Facility for Liquid Radioactive Waste
Tập 5 - Trang 1-12 - 2022
Gamma radiation shielding of baked and unbaked granite bricks produced with
0%,10%, 20%, 30%, 40%, 50% of kaolin powder were experimentally and
theoretically assessed for possible deployment in liquid radioactive waste
storage. A 3 × 3 inches NaI(Ti) detector and WinXCOM program were used to
measure the linear attenuation coefficients at different energies. Elements
composition of samples were ana...
The Era of Engineering Grand Challenges
Tập 1 - Trang 1-3 - 2018
The history of technology is mixed with the history of humankind. Technology has
been the crucial ingredient in most major global historic events, and as time
passed, it has occupied an increasing role into society. Nowadays, it is
impossible to perceive a developed or even emergent country without a major
focus on technology. While the competitive advantage of technology has put
humans in this st...
Challenges for the Implementation of Carbon Capture and Storage (Ccs) in Brazil: a Socio-Technical Approach
Tập 2 - Trang 1-8 - 2019
The object of this work is to discuss the challenges for the implementation of
Carbon Capture and Storage (CCS) in Brazil. The socio-technical framework is
employed as a methodological tool to analyse these challenges, considering the
feasibility of new technologies in the Brazilian mitigation mix. In the specific
case of implementing CCS technologies in Brazil as a mechanism to contribute to
the ...
A Multilayer Proposal to a Smart Home Applied to Healthcare
Tập 4 - Trang 1-14 - 2021
Smart home technology is an up-and-coming field of automation that integrates
different areas, including sensing and electrical automation subsystems,
devices, mechanical and hydraulic systems associated with sophisticated control
and supervising. Recently these systems also received an extra mission to assist
particular users, as older adults or patients who need intensive care. Such a
challenge ...
Green Technology: Transformation of Transpiration Vapor to Mitigate Global Water Crisis
Tập 2 - Trang 26-29 - 2019
The transpiration mechanism has been proposed for rerouting as it is the main
cause of groundwater loss which is also causing significant climate change by
releasing water vapor into the air. Since electrostatic force has the tendency
to tug down the water, thus, a static electricity force creating plastic tank
has been proposed to install at the bottom of plants to capture the
transpiration water...
Glyphosate Toxicity: Effects on the Behavioural and Growth Responses of Juvenile Clarias gariepinus
- 2024
Glyphosate is a broad spectrum herbicide used primarily in agricultural
applications for the control of variety of weeds in both terrestrial and aquatic
environments. Pollution of aquatic habitat may result in mass fish mortality or
affect the physiology and survival of fish. Thus, this study evaluated the
effects of exposure of juveniles of the African catfish, Clarias gariepinus, to
sub-lethal d...
Remote Vital Sign Monitoring in Accidents
Tập 4 - Trang 26-32 - 2021
This paper proposes to evaluate the feasibility of obtaining the heart rate (HR)
through remote Photoplethysmography (rPPG) while the subject is lying down in an
emergency situation. The proposed methodology performs image and signal
processing on frames containing part of a person’s skin to infer the blood
volume variation signal, and then, estimate the HR. As the study evaluates the
accuracy of ...