bluuebunny/crossref_metadata_2025_split huggingface dataset:
Numerical Simulation Platform for a Generic Aircraft Flight Dynamic Simulation
Authors: Adila Arif Adam , . Stepen , Adhy Sasongko Rianto 
Published: July 2024

Flight simulation has been used for many purposes in several decades, started from pilot training, engineering purposes, even just for a hobby. In its development, computing technology has a vital role in aircraft simulation. Nowadays, people do an aircraft simulation mostly by using a set of the computing device and complementary equipment such as a joystick. On the other hand, engineers use aircraft simulation in order to evaluate the aircraft in many aspects such as flight performance, handling quality, and controllability. This paper proposes a simulation system to do an engineering simulation especially to evaluate controllability of an aircraft utilizing X-Plane 10, Python and MATLAB. This system can manipulate aircraft loading configuration and failure on aircraft systems, set the environment condition, and observe control-related flight parameters in MATLAB whilst the aircraft is still flying in the X-Plane 10 at the same time. The system had been tested and proved could work well with X-Plane 10.Â Â
Effect of Wing Locations to the Aerodynamic of UiTMâ€™s Blended Wing Body-Unmanned Aerial Vehicle (BWB-UAV) Prototype
Authors: Diyana Nasri Huang Farah , Wisnoe Wirachman , Effendy Mohd. Nasir Rizal , Sabah Shukri Askari Ehan 
Published: July 2024

This paper focuses on the effect of wing placement on UiTMâ€™s BWB Prototype to the aerodynamic performance of the aircraft. Lift coefficient (CL), drag coefficient (CD) and pitching moment coefficient (CM) are analyzed at 20 m/s air velocity, using NUMECA Computational Fluid Dynamics (CFD) software. Three wing locations are selected, i.e.: initial location (in reference to the BWB Prototype), front location (30% from leading edge), and middle location (in between of the first two cases). The canard and wing tips from the BWB Prototype are removed for this study. Grid independence study is completed to observe the effect of number of cells on the computation results. Comparison between the CFD and wind tunnel results on the initial BWB Prototype is performed for validation purpose. The variation of CL, CD and CM are presented in curves of lift coefficient, drag coefficient and pitching moment coefficient against angles of attack (Î±). The lift coefficient curves give similar trends for the three wing locations and the initial configuration except between 20Â° â€“ 35Â° angles of attack where different fluctuation behavior occurs on the curves. The maximum lift coefficient obtained is around 0.86 â€“ 1.05 at Î± = 26Â° â€“ 30Â°. Drag coefficient curves also show similar trend for the three wing locations, but lower than the initial configuration due to removal of the canard and wing tips. The pitching moment curves show significant difference in slope among the three placements of the wing for Î± above 10Â°. The pitching moment coefficient curves indicates negative slopes up to of Î± = 18Â° (initial and middle case) and Î± = 22Â° (front case) which indicates static stability for all cases. Curves show that the middle wing configuration continues to give static stability up to higher angles of attack whereas the front case provides the best static stability up to Î± = 22Â°. Overall the absence of canard and wing tips removes the sudden change of slope of pitching moment around Î± = 12Â° which initially occurs on the BWB-UAV Prototype.Â Â
Performance of a Monarch Butterfly for Various Flapping Angle
Authors: . Aaroh , Zuber Mohammad , Md Abdul Khader Shah , Kalburgi Sagar , Illyani Basri Ernnie , Arifin Ahmad Kamarul 
Published: July 2024

The butterfly is an insect highly evolved to perform various flight regimes. From gliding flight to manoeuvers involving spontaneous changes in direction, the butterfly is considered a marvel of aerodynamic evolution. Recent demand in the development of micro-aerial vehicles (MAVs) has led scientists to study these creatures in greater depth to get a better understanding of the lift generating mechanisms adopted by them. This study focuses on the evaluation of gliding performance of the Monarch butterfly. A CAD model of a Monarch butterfly wing is modelled using CATIA, taking into account only a single wing of wingspan 53.381 mm which is used to simulate the gliding motion of the butterfly. The gliding performance analysis suggests that a maximum aerodynamic coefficient of 3.597 is achieved for the current wing orientation at 8Â° AoA.Â Â
The Effect of Magnetic Induction Spectroscopy Signal for Cylindrical Screw with Different Length
Authors: Amran M. , Daud R. , Zakaria Z. , M.K. Ali Hassan M. , I. Omar M. , Mat F. 
Published: July 2024

In medical surgical procedures, screw is commonly used when it comes into internal and external fixation surgery. The size of screw, which is classified as the diameter and length of screw plays an important role to stability the bone implant fixation. Previous studies showed there is lack of investigation on screw loosening detection that brings the problem of detecting the failures of bone implant in a long bone such as femur. Detection technique of this kind of problem is important in medical technologies to ensure better healing. The purpose of this study is to investigate the received signal of electromagnetic field on the different cylinder length by employing a single channel of magnetic induction spectroscopy. This study is used to evaluate the current density distribution in the cylinder screws under the action of electromagnetic field. The diameter of cylinder screw used in this simulation study is 3mm diameter based on the medical surgery procedures and the length of cylinder focuses onto 3 different lengths (22mm, 26mm, and 30mm). The simulation of this study concludes that COMSOL Multiphysic 5.2a software with a range of frequency 1MHz to 10MHz is used. The received magnetic field and current density of each model shows that the conductivity is changed based on the geometry of the cylindrical screw.Â Â
Oriented Strand Board using Smaller Strand Size as a Core Layer
Authors: Yuziah M.Y Nor , W.M Nazri , K Jamal , S Rahim 
Published: July 2024

As a direct effect of its rapid growth, Leucaena leucocephala tree could be a leading raw material for bio-based composite panels. This fast growing tree and lesser used species in the wood industry can expand the choice of raw material for production of value added products. In this study, board properties of OSB using smaller strand size ofÂ Leucaena leucocephala as core layer, physical and mechanical properties were found to be affected significantly by board density and resin content except for MOR in minor axis. However, strand size did not affect physical and mechanical properties except for MOR in major axis. Effects of board density on the mechanical properties were found to affect significantly different. The board density showed a significant effect on thickness swelling with a positive correlation. There is no significant difference on bending properties, internal bond strength and thickness swelling between combination of strand size of S1+S3 and S2+S3. Effect of resin content on bending properties showed significant difference of MOR in major axis and MOE values in both major and minor axis. Generally all treatment of OBS passed the general requirement of general purpose OSB even when the resin is as low as 5%.Â Â
Computational Analysis on Skull Fractures and Brain Injury using Finite Element Analysis
Authors: Hazwan Mohamed Norli Mohd , Al Faiz Hilmi Mohd Al Zahari Mohammad , Hisyam Marwan Shahrul , Halim Abdullah Abdul 
Published: July 2024

Traumatic Brain Injury (TBI) is a complex injury with a broad spectrum of disabilities and symptoms. Basically it happen when head is impact with certain value of force and the victim has to bear with a certain mechanism of injury. This research has investigated the potential for TBI using Finite Element (FE) analysis with rear impact on the head at different velocities. A 3D human skull and brain were presented and run through simulation in explicit dynamic analysis using commercial finite element software. The risk of skull fractures and brain injury were predicted based on the resulting maximum principal stress, shear strain and total displacement. Final objective of this research is to provide a predictive tool as FE model that can aid in injury diagnosis and design protective devices to minimize the impact effects.Â Â
Effects of Screw and Plate Positions in the Dual Plating of Distal Humerus Fixation
Authors: Hakim Noordin Luqman , Hisyam Marwan Shahrul , Halim Abdullah Abdul 
Published: July 2024

Bone fractures are one of the common effects of road accident. Osteosynthesis is a surgical procedure to treat the fractures of the bones by inserting implant to restore the fracture bones to its original position and immobilizing the restored region to allow proper growth of bone. One of the main problems of an internal fixation surgery is the ability of implants to retain the original position of humerus bone without any other complications during the fractured bone development. Thus, the purposes of the study was to analyze the biomechanical effects of screw and plate positioning at the distal humerus bone. The static analysis is carried out to evaluate the effect of mechanical characteristics and stress distribution in the humerus bone by using computational design and analysis software (CATIA) and Materialise Interactive Medical Image Control System (MIMICS) software. Thus, the analysis resulted to stress/strain distributions and displacement of the humerus bone and dual plate implant respectively. Different positioning of screws shows more significant results compared to positioning of dual locking plate regarding to the stress distribution and displacement of locking plate implant which can lead to disturbance towards the growth of bone.Â Â
Combination of SVM, LDA, PCA and linear regression under fuzzy system in human face recognition
Authors: Ahammad Bulbul , Jude Rozario Liton , Majumder Anup , Imdadul Islam Md. 
Published: July 2024

One of the main applications of image processing is recognition of human face. In this paper, we worked on several benchmark databases of human face to identify a person based on Linear Regression, SVM (Support Vector Machine and Viola-Jones Object detector), LDA (linear discriminant analysis) and PCA (Principal Component Analysis). All the four methods are combined under Fuzzy system and we get the accuracy of 96.4% which is higher than any individual method.Â Â
Testing and manufacturing with numerical modeling of metal PTB orthosis
Authors: M.Abbas Saif , Qasim Humadi Rasha , M. Takhakh Ayad 
Published: July 2024

In this work, fiber glass as a reinforcement in composite material used for manufacturing ankle foot orthoses (AFO) PTB type of metal valve with vacuum molding technique fabricated. The material was depended on 8 layers of fiber glass. The mechanical properties of the AFOsâ€™ material were studied by tensile test, and fatigue test. The results showed that the tensile strength (Ï¬ult ) for fiber glass are 224 MPa, yield strength (Ï¬y ) was 170 MPa and elongation at break 1.9mm.The gait cycle (ground reaction force (GRF)) and pressure distribution data were collected by using force plate and F-socket devices respectively for patient of age 29 years with height 185cm and weight 83kg .Heel contact time percent without PTBO equal to 5%, when wearing fiber glass PTBO equal to 59%. The midstance time percent for patient without PTBO equal to 12% when wearing PTBO equal to 34%. Solid work software program was used for PTPO modeling Also; the FEM (ANSYS ver.18.2) was used to compute the equivalent stress (Von-Mises), safety factor of fatigue and total deformation for fiber glass PTBO model. The obtained results from ANSYS gave the profile of safety factor of fatigue (1.1492).Â Â
A scale-invariant lettuce leaf area calculation using machine vision and knowledge-based methods
Authors: James M. Loresco Pocholo , P. Dadios Elmer 
Published: July 2024

Leaf area is one of the most significant reference tools to characterize plant growth and predict growth stages. Scale invariance in calculating leaf area needs to be understood in the lettuce growth monitoring context. Using machine vision and knowledge-based classifiers, this research produced a system for a scale invariant area calculation of lettuce leaf area by detecting a template marker with a known area for scaling area measurements. Results showed that knowledge-based algorithm can improve the performance of the machine vision classifiers for rejecting false positives even for a limited number of training datasets. Area measurements produced by the system performed well in terms of root-mean-square error (RMSE).Â Â
Transient analysis of laminated composite shallow shell by using new higher order shear deformation theory
Authors: Ghazi Kareem Marwa , Widad I. Majeed Dr. 
Published: July 2024

The present work is a transient discussion that based on the recent higher position of the shear deformation function proposed by J.L. Mantari et al [Composite Structures 94 (2011) 37â€“49] who develops the idea behind the supported cross-ply laminated shallow shell. It explains the recent hint of displacement which based on a parameter â€˜â€˜mâ€™â€™, when its worth is optimized in order to get closest outcomes of the elasticity of the 3D solutions. The transient solutions are obtained using Navier series for thick and thin anti-symmetric and symmetric cross ply laminated shallow shell. Results are provided for several designed parameters like the quantity of laminates, curvature ratio and the ratio of the thickness on the laminated combined dynamic behavior (Glass/epoxy) and hybrid (Glass/carbon/epoxy) shallow shell subjected to sinusoidal distributed load and uniformly distributed load with different types of time dependent loading such as sine pulse, triangular pulse and step pulse are studied. The accuracy of the present codes by using Matlab R2017b is verified by comparing with other works solution and Ansys 15 software.Â Â
An efficient encryption-secure communication using symmetric key
Authors: Nigar Nahida 
Published: July 2024

To stop unauthorized disclosure of confidential information we need to secure our data. To secure data we need to use a secure cryptographic system. The conventional systems of data security are not suitable for multimedia as well as different data types. This paper is concerned with the development of a secure communication system which will satisfy some aspects such as reliability, maintainability, security, and user-friendliness. This project is based on the conventional method of cryptography known as symmetric key encryption technique named AES and 3DES made the system faster, better immune to attacks, greater complexity, easier encryption/decryption, and much more advanced security feature included. This project work is designed and developed for secure communication on different platforms. Unlike any other application, this software can encrypt any length of a video message, audio, text, etc. using a key and then decrypts the ciphertext with the same key to see the plaintext on the receiving end. Whatever the data is encrypted the ciphertext will be in text type which will give more security to the data because the hacker cannot guess the data type to hack. Comparing with other security based application system, the proposed system can be used for any type of communication in both online and offline.Â Â
Single phase bridgeless welding source with reduced semiconductor devices and improved power quality
Authors: Kumar Manoj , Singh Sanjeev 
Published: July 2024

This paper presents a single phase bridgeless (BL) converter-based welding source with reduced semiconductor devices with improvement power quality at AC mains. The proposed BL welding source consists of two stages configuration. In first stage configuration bridgeless boost converter operated in continuous conduction mode (CCM), to achieve power factor near unity and input source current less than 5%. In second stage isolated two switch forward converter (TSWFC) is used to drive welding load with high frequency step down transformer (HFT). HFT provide electrical isolation between input supply and welding load. Output current control with short circuit handling capability is also ensured to achieve smooth and strong welding. The removal of diode bridge rectifier in BL converter at the input side, results in conduction loss reduction, increased efficiency and better thermal stability as compared to other conventional power factor correction (PFC) rectifiers. The controller performance is simulated in MATLAB SIMULINK and realized on a hardware prototype for validation of proposed concepts. The obtained results are presented for demonstration of effectiveness of proposed concept.Â Â Â
Predicting Environmental Leadership Based on Personality and Its Construct Validity
Authors: Putrawan Made 
Published: July 2024

Environmental issues nowdays have been an interesting topic discussed by any institutions in most countries. One of them is concern with environmental management determined by leadership. How environmental leadership (EL) be explained and predicted by personality (EP) and how their construct validity are research problems. A survey method has been applied by involvingÂ 237 employees of government official in environmental sector, in Jakarta city, as sample selected randomly. Two instruments have been developed; Environmental Leadership (EL) and Environmental Personality (EP). Its reliability was respectively .991 (EL) and .907(EP). Data has been analyzed by regression & correlation analysis and confirmatory factor analysis (CFA) as well. Research results revealed that ony two factors of big-five personality have a positive and significant contribution toward environmental leadership, Â extraversion and openness to the experience, even though it has been applied by fourth-order correlation, it was only emotional stability did not support it. Considering to factor analysis results, either of environmental personality or environmental leadership, has a high construct validity since all factors loading did confirm theoretical dimensions empirically. There is no doubt that both instruments could be taken into consideration to be implemented scientifically, concern withÂ environmental research.
Indigenous Cultural Heritage Tourism in Rompin, Pahang
Authors: Said Haliza Mohd , Rahman Salbiah Abd , Latif Rohaizah Abd , Saidin Munira , Aziz Dahlia Abd 
Published: July 2024

The strategic purpose of this research project is to promote cultural heritage tourism for economic development among Jakun indigenous community in the district of Rompin, Pahang. This research is to determine whether tourism is a viable economic factor that could improve the living standards of the indigenous community through the use of culture and heritage. This research process is divided into four distinct phases, the first phase is the identification of resource analysis, the second phase is the summarization of the situational analysis, while the third phase is the identification of tourism products and activities, and the fourth and final phase is the recommendation of training programs for the area. A face-to-face interview is conducted with the Jakun people in six orang asli villages located in Rompin. The researchers have identified two potential Culture and Heritage areas located in Kampung Batu 3, Sabak and Kampung Selinkong.Â Rumah Adat, indigenous homestay, nature trail and wood handicraft has been identified as tourism products from these areas. Training programs such as homestay operator, indigenous culture performance, nature guide and making wood handicraft can be proposed.
Energy Integrated Distillation Columns Sequence (EIDC) of 5-Component Alcohol Mixture via Driving Force and Thermal Pinch Analysis Approach.
Authors: Shahruddin Munawar Zaman , Xinyi Tan , Rahimi Ahmad Nafais , Zubir Afiq , Zahran Muhammad Fakhrul Islam , Ibrahim Kamarul Asri , Hamid Mohd Kamaruddin Abd 
Published: July 2024

Distillation column is a well-known unit operation to perform the intended separation task in chemical and petrochemical industries. However, the common issue for distillation column is the large energy requirement especially for multicomponent processes. Therefore, the sequence determination could be a key to solve the problem. This paper provides a methodology to produce energy integrated distillation columns sequence via driving force sequence approach. Then, it is supported by the thermal pinch analysis for further the energy saving in the process.Â The case study selected is distillation process of 5-component alcohol mixture. Based on the input data, two sequences for distillation columns namely direct sequence and driving force sequence were firstly simulated. Then, the resulting information such as target temperature, supply temperature and energy from condensers and reboilers have been extracted for thermal pinch analysis. Lastly, the energy requirements from the analysis (before and after pinch analysis) were compared for energy saving calculation. Based on the analysis results, the driving force sequence with pinch analysis successfully enhanced the 35% of the overall energy saving. Thus, it can be said that the driving force sequence and thermal pinch analysis approach namely energy integrated distillation columns sequence has a potential for further the energy saving of the distillation columns sequence for the selected case study.
Implementation of Phase Locked Loop for FM Demodulator Circuit
Authors: Amit Deshmukh Alpana , Gamad Radheshyam , Kumar Mishra Deepak 
Published: July 2024

This paper aims to implement the phase locked loop for the FM demodulator circuit in Intermediate frequency band. Implementation of the proposed design is done using Simulink; further simulation is presented using Matlab as well as a comparative analysis of VCO parameters using charge pump, linearized and baseband are discussed. Charge pump based PLL design achieved phase noise of -120 dBc/Hz at 10 MHz offset frequency. Paper also presented FM demodulated output for 5000 kHz sampling frequency and 2000 KHz carrier frequency at 50 Hz deviation frequency. Simulation results are reported in tabular and graphical form.Â Â
The Design of Promoting Building Energy Saver with Mobile Controller
Authors: Azliana Akmal Jamaludin Nor , Ahmad Arniyati , Fatimah Awang Nor , Zainol Zuraini 
Published: July 2024

Today, advance development of automation technology has totally changed our life that much easier in all aspects.Â This cause the automatic systems are more preferable over manual system. Since the increment of internet users over the past decade has made Internet as essential part of our life.Â With arising of Internet of Things (IoT) technology as expanding network that connect every object from manufacturing machine to userâ€™sÂ home appliances forÂ information sharing. This support the usage of IOT in Wireless Smart Building System to handle basic building functions automatically over internet from anywhere. Although smart building previously used to save the electric power and human energy, building with automation system differs from other system because it allows user to operate the system remotely through the internet connection. In this study, we present a design of a Smart Building System using Arduino that consist of cloud and wireless communication which allows user to control their home appliances like fans, light, air conditioner and many moreÂ in their building and storing theÂ usage data in the cloud. The building system adjusts automatically based on sensorsâ€™ data. The designed system was low cost and expandable, which accept a variety of devices to be controlled. This paper shares the architecture designs and development methodology of the system.Â Â