Autor: Rashid, Ahmed. - Katalog OPAC zbiorów

Tytuł:: Arduino-based implementation of kinematics for a 4 DOF robot manipulator using artificial neural network
Autorzy:: Rashid, Zaid Hikmat
Sarhan, Riyadh Ahmed
Hassan, Mohammed Salih
Powiązania:: https://bibliotekanauki.pl/articles/27317631.pdf
Data publikacji:: 2024
Wydawca:: Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:: robot
kinematics
neural network
arduino
micro stepping
Opis:: Real-time motion control is basically dependent on robot kinematics analysis where there is no unique solution of the inverse kinematics of serial manipulators. The predictive artificial neural network is a powerful one for finding appropriate results based on training data. Therefore, an artificial neural network is proposed to implement on Arduino microcontroller for a 4-DOF robot manipulator where the inverse kinematics problem was partitioned to suit the low specification of the board CPU. With MATALB toolbox, multiple neural network configuration based were trained and experienced for the best fit of the dimensionless feedforward data that is obtained from the forward kinematics of reachable workspace with average MSE of 6.5e-7. The results showed the superior of the proposed networks reducing the joints error by 90 % at least with comparing to traditional one. An Arduino on-board program was developed to control the robot independly based on pre validated parameters of the network. The experimental results approved the proposed method to implement the robot in real time with maximum error of (± 0.15 mm) in end effector position. The presented approach can be applied to achieve a suitable solution of n-DOF self-depend robot implementation using micro stepping actuators.
Źródło:: Diagnostyka; 2024, 25, 1; art. no. 2024114
1641-6414
2449-5220
Pojawia się w:: Diagnostyka
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Mechanical and Thermal Properties of Graphene over Composite Materials: A Technical Review
Autorzy:: Islam, Md. Mashrur
Ahmed, Sadman Saffaf
Rashid, Moshiur
Akanda, Md. Masum
Powiązania:: https://bibliotekanauki.pl/articles/107007.pdf
Data publikacji:: 2019
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: graphene
composite material
modern electronics
sensors
modern materials
Opis:: The recent years have seen numerous developments in the research and headway of graphene, the thinnest two-dimensional nuclear material. Graphene-based materials and their composites have promising applications in an extensive variety of fields; for example, gadgets, biomedical guides, films, adaptable wearable sensors, and actuators. The most recent investigations and movement in this branch of knowledge regularly deliver conflicting or uncertain outcomes. This article evaluates and outlines the distributed information in order to give a basic and complete diagram of the cutting edge. Initially, the particular basic nature of accessible graphene materials is illustrated as well as the distinctive generation methods accessible thus far. The appraisal at that point talks about the different composites that center diverse sub-practical routines; for example, mechanical and aggregate utilitarian applications (e.g., vitality, hardware biomedical, layers, and sensors). The use of graphene and its subsidiaries in the fabricate of nanocomposites with various polymer frameworks has been inspected. And finally, an ending and point of view are given to talking about the rest of the difficulties for graphene nanocomposites in useful science and building.
Źródło:: Journal of Casting & Materials Engineering; 2019, 3, 1; 19-30
2543-9901
Pojawia się w:: Journal of Casting & Materials Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: New generators for minimal circular generalised neighbour designs in blocks of two different sizes
Autorzy:: Nadeem, Muhammad
Noreen, Khadija
Kashif Rasheed, H. M.
Ahmed, Rashid
Hassan, Mahmood Ul
Powiązania:: https://bibliotekanauki.pl/articles/14769686.pdf
Data publikacji:: 2023-03-15
Wydawca:: Główny Urząd Statystyczny
Tematy:: direct effects
neighbour effects
method of cyclic shifts
generalised NDs
GN2-designs
Opis:: Minimal neighbour designs (NDs) are used when a response of a treatment (direct effect) is affected by the treatment(s) applied in the neighbouring units. Minimal generalised NDs are preferred when minimal NDs cannot be constructed. Through the method of cyclic shifts (Rule I), the conditions for the existence of minimal circular generalised NDs are discussed, in which v/2 unordered pairs do not appear as neighbours. Certain generators are also developed to obtain minimal circular generalised NDs in blocks of two different sizes, where k2 = 3, 4 and 5. All these designs are constructed using i sets of shifts for k1 and two for k2.
Źródło:: Statistics in Transition new series; 2023, 24, 2; 85-92
1234-7655
Pojawia się w:: Statistics in Transition new series
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Application of LandGEM mathematical model for the estimation of gas emissions from contaminated sites. A case study of a dumping site in Lahore, Pakistan
Autorzy:: Alam, Asifa
Chaudhry, M. Nawaz
Ahmad, Sajid Rashid
Ullah, Rizwan
Batool, Syeda Adila
Butt, Talib E.
Alghamdi, Huda Ahmed
Mahmood, Adeel
Powiązania:: https://bibliotekanauki.pl/articles/2057619.pdf
Data publikacji:: 2022
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: mathematical model
greenhouse gas
energy supply
garbage dump
model matematyczny
gaz cieplarniany
źródło energii
wysypisko śmieci
Opis:: Decomposition of organic waste in dumping sites and landfills prompts the uncontrolled emission of greenhouse gases which enhances global warming and related issues. The present investigation estimated the total landfill gas, methane, carbon dioxide and non-methane organic compounds emissions from Mahmood Booti dumping site located at Lahore, Pakistan from 1996 to 2045. LandGEM 3.02 model was utilized to evaluate the gas emission with the volumetric methane 50%, production potential (170 m3/Mg), and methane generation rate (0.050/year). The findings demonstrated that organic and food wastes had the maximum quantity in the solid waste stream (63.46%). Methane measured from solid waste was 1.150E+03 (Mg/year) in 1997 in the first year after waste was accepted by landfill while the maximum methane generation rate happened from 2014 to 2018, i.e., from 4.049×104 to 4.654×104 Mg/year, respectively. The study finding highlighted that all gases emissions have an increasing/rising trend up to 2021 and then gradually their level will decrease because most of the organic fractions of solid waste would degrade with time. The findings of this study can be used to identify the impacts and contribution of MBODS in the global emission of greenhouse gases. The study concludes that proper management of landfill gas will not only decreases greenhouse gas emissions, diminishing adverse impacts on public health but can also be used as a sustainable energy source.
Źródło:: Environment Protection Engineering; 2022, 48, 1; 69--81
0324-8828
Pojawia się w:: Environment Protection Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Baseline study in environmental risk assessment : site-specific model development and application
Autorzy:: Alam, Asifa
Mahmood, Adeel
Chaudhry, M. Nawaz
Ahmad, Sajid Rashid
Safa, Noor Ul
Alghamdi, Huda Ahmed
Alhamdi, Heba Waheeb
Ullah, Rizwan
Powiązania:: https://bibliotekanauki.pl/articles/2203136.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: baseline study
risk assessment models
risk management
mathematical approaches
landfills
dumping sites
environmental risk estimation
Opis:: Environmental risk assessment is one of the key tools in environmental engineering. This risk assessment can be qualitative or quantitative and it is based on preliminary studies i.e., baseline study for waste disposal sites. Even though the literature exists on baseline study in general, still there is a lack of guidance regarding development of a site-specific baseline study model for a waste disposal site. This study has two-fold aim, firstly, how to develop site-specific baseline study model for a selected dumping site, and secondly, how this site-specific baseline study can support the environmental engineering via mathematical risk estimation. Mahmood Booti Open Dumping Site (MBODS) is selected to demonstrate the development and application of site-specific baseline study model. This is followed by building a framework that shows how the output of the baseline study can lead to environmental engineering via mathematical risk estimation. The paper provides a mechanism of how to construct a bespoke baseline-study model that is readily useable, avoiding procurement of expensive computer software and yet smoothly connecting with the follow-on stages of the risk assessment. The work presented in this paper can be reproduced repeatedly to create site-specific baseline study models for risk assessment of other waste disposal sites in a cost-effective, consistent and cohesive manner.
Źródło:: Archives of Environmental Protection; 2022, 48, 3; 80--88
2083-4772
2083-4810
Pojawia się w:: Archives of Environmental Protection
Dostawca treści:: Biblioteka Nauki

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