bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mechanical properties of ceramic materials SiC-BeO
Authors: Shabanov Sh Sh , Kardashova G D 
Published: December 2020

Abstract
High-density ceramic based on silicon carbide with the addition of beryllium oxide compositions (1-2)% wt. With a step of 0.2 was obtained. X-ray diffraction studies of SiC-BeO ceramics showed changes in the lattice parameter of SiC “c” with the addition of beryllium oxide, the minimum value of which was observed for a composition of 1.4% wt. BeO. For compositions greater than 1.4% wt. BeO was observed only polytype 6H. The grain size of sintered ceramic materials reached up to 20 microns. The elastic moduli, microhardness, and shear strength for hot-pressed SiC-BeO ceramic materials are determined.
Durability Properties of Demineralized and Torrefied Empty Fruit Bunch (EFB) Pellets
Authors: Mohamed A R , Ismail R I , Rashid M A N M I R , Sohaimi K S A , Kasim N N , Ahmad R 
Published: December 2020

Abstract
The pelletization of raw and demineralized and torrefied empty fruit bunch (TDEFB) were conducted upon mixing with bio-oil that was obtained from EFB pyrolysis. The ratio of bio-oil addition to raw and TDEFB was varied from 0-20 wt%. Then it was pressed using the single pellet press machine. The effects of the ratio of bio-oil addition to raw and TDEFB and the thickness of pellets were evaluated towards its durability. It was identified that the ratio of bio-oil addition to raw and TDEFB pellet of 5 wt% had produced the optimum durability which was 69.27 and 74.46 % respectively. In terms of the thickness of the raw and torrefied pellets, it was determined that at thickness of 3 cm, the durability was the highest which were 70.12 and 71.12 % for both raw and TDEFB pellets respectively. The raw and TDEFB pellets were analysed using Fourier Transform Infra-Red (FTIR) spectroscopy in order to evaluate the presence of functional groups within the materials. The presence of O-H hydroxyl group, C=O from carbonyl or ester and C-H alkane groups are detected in both raw and torrefied pellets.
Thermal and catalytic pyrolysis of palm-pressed fibre (PPF) with copper oxide doped zirconia (CuO/ZrO2) catalyst in a fixed-bed reactor
Authors: Mohamed A R , Awang A N , Hassan D M , Nordin N , Ahmad R 
Published: December 2020

Abstract
The utilization of agriculture solid waste such as palm pressed fibre (PPF) in pyrolysis reaction is an alternative way in converting the solid waste into bio-oil. In this research, thermal and catalytic pyrolysis of PPF was conducted using a tubular fixed bed reactor. A series of CuO/ZrO2 catalysts were prepared using the aqueous sol-gel technique. The catalysts were calcined at 400, 600 and 800 °C for 17 hours. The thermal and catalytic pyrolysis of PPF were carried out at 500 °C pyrolysis temperature for 5 minutes holding time using PPF particle size of 250-500 µm. The pyrolysis results showed that 44.35% bio-oil was obtained under thermal condition and their yields reduced to 41.07%, 35.45% and 38.18% respectively when CuO/ZrO2 catalysts calcined at 400, 600 and 800 °C were incorporated in PPF pyrolysis. The bio-oil was analyzed by using fourier transform infrared (FTIR) spectroscopy for the determination of functional groups. It was found that bio-oil from thermal and catalytic conditions possessed oxygenated functional groups such as aldehyde, ketone and carboxylic acid. In addition, the bio oil from catalytic conditions CuO/ZrO2 catalysts calcined at 400 and 600 °C showed the presence of saturated hydrocarbon.
Efficient W-Mo mixed oxide supported CaO catalyst for the production of biodiesel from high FFA waste cooking oil: Stoichiometric effect
Authors: Mansir N , Taufiq-Yap Y H 
Published: December 2020

Abstract
Biodiesel is considered as one of the most promising biofuels produced from the vegetable oils. This is due to its environmental benign and availability of variety of feedstock. It is generally produced by either esterification reaction of free fatty acid (FFA) or transesterification reaction of triglycerides, using acid or base catalysts, respectively. In this work, the solid tungsten molybdenum supported by calcium oxide catalyst (Wx-Moy/CaO 0.3≤x, 0.7≤y) was developed and used to produce biodiesel from high FFA waste cooking oil. The catalyst was synthesized using simple wet impregnation method. The stoichiometric effects of transition metal oxides loading on acid-base properties, surface area and porosity of the catalyst were studied. The catalytic activity of the catalyst for transesterification reaction increases with the increase in the tungsten molar weight ratio over Molybdenum from 0.3 to 0.7. The W0.6-Mo0.4/CaO catalyst recorded the highest biodiesel yield of 96.2% under mild reaction conditions of 15:1 methanol to oil molar ratio, 70°C reaction temperature, 2 wt.% catalyst loading and 2 h reaction time. The newly synthesized catalysts were characterised using X-Ray Diffraction (XRD), Temperature Programmed Desorption(TPD) and Vapour Pressure Scanning Electron Microscope (VPSEM).
Strain monitoring for shallow foundation using the application of Brillouin Optical Time Domain Analysis sensing system (BOTDA)
Authors: Sirat Qurratu Aini , Awang Ismail Dayangku Salma , Ahmad Izwan Shah , Kassim Azman 
Published: December 2020

AbstractStability analysis of the foundation is closely associated with soil deformations and since the stability of the foundation affect the stability of the entire structure, instrumentation and monitoring play an important role in monitoring its performances. The usage of Brillouin Optical Time Domain Analysis (BOTDA) sensing system is implemented in this study to monitor the soil deformation, yet the accuracy of the fiber sensing technology is still a concerned point. Thus, the aims of the paper are to evaluate the parameter configuration of the BOTDA interrogator and to analyze the fiber optic-soil interaction from the strain distribution data under the influence of incremental surcharge loading. The methodology presented are experimental works for calibration of fiber optic as for acquiring the coefficients by calibrating the signal difference in terms of strain and thermal characteristics. Then, the coefficients use used in a small-scale physical model to observe the fiber optic-soil interaction under the influence of surcharge loading. From the result of this study, the coefficient over a Brillouin signal for Fujikura optical fiber is 20 µε and 1°C for strain and temperature respectively. The fiber-soil interface also increases with the implementation of anchorage system. In conclusion, optical fiber sensing is a good approach for instrumentations and monitoring for geotechnical structures as fiber optics is sensitive to the movement of the soil.
Develop Portable Blood Analyzer Based On Temperature And Quantity Level
Authors: Farhan Sukemi Muhammad Amar , Mustafa Wan Azani , Aihsan Muhammad Zaid , Razali Zol Bahri , Akhmal S , Saidi Syahrul Affandi 
Published: December 2020

Abstract
This technical paper presents a developing portable blood analyzer for monitoring of human blood sample. Perseverance of blood sample in hospitals is important in order to obtain a great quality of blood and therefore it able to determining the human type of disease. This is a life-threatening early step in most medical applications fields such as diagnosis, treatment and medical research. The proposed system consists of three main parts. In the first part, the use of convenient and handy device to deal with the problem of incorrect temperature value and inadequate quantity of blood sample. Most of previous human hospitality services show a fail to handle and properly in time to take human blood sample for diagnosis in a schedule time frame such as not punctual in taking blood sample from a patient in three different times in one day. The consequences is that these blood sample are not in perfect quality for a correct estimation of the human disease towards a pathology unit. The proposed method is a device that uses infrared temperature system and non-contact blood sample quantity detection. In the second part is by combining those two approaches to single programmable electronic modules that are used to minimize the size of the portable device in the resulting techniques to improve the functionality. The third part is accomplished by using a modern technique to produce an interface to provide the value of human blood sample and shows it on display for monitoring purposes. The programmable coding has been test in several different types of sensors and physical part. The experimental results show that this method able to integrate both requirement of human blood sample perseverance with a contactless method towards a blood tube, providing the output value of quality characteristic in a display and making it well-suited for a convenient practical application system. The experimental results in real time applications shows the effectiveness, reliable and efficiency in the proposed approach which able to almost accurately detect and monitor the human blood sample with the ability to detect different types of people gender and blood type. The proposed coding system can be executed at more precise time scheduling which is better than real life human monitoring system.
Hybrid Floating Point/Logarithmic Number System Processor
Authors: Sheng C Y , Ismail R C , Naziri S Z M , Isa M N M , Murad S A Z , Harun A 
Published: December 2020

Abstract
Hybrid Floating Point/Logarithmic Number System processor is an Arithmetic Logic Unit with hybrid architecture in which its data computation involves Floating Point (FLP) and Logarithmic Number System (LNS). LNS processor has high performance but requires complicated hardware to support its function, especially LNS addition and subtraction. Therefore, hybrid processor is proposed to perform multiplication/division in LNS, addition/subtraction in FLP. Through merging FLP and LNS, data computation can be done in a faster, precise and less complicated way. The proposed research is a 32-bit Hybrid FLP/LNS processor, which involving 32-bit fixed point data format and 32-bit single precision FLP format. The EDA tools used in developing and simulating this project is based on Synopsys Design Compiler and Altera Quartus II, and the Hardware Description Language used is Verilog HDL. Logical synthesis of this project is done by using Synopsys Design Compiler and its area, timing and power are validated.
Conceptual Design for Ankle Rehabilitation Robot by Using Morphological Chart and Pugh Method
Authors: Von Teh Cheryl Yi , Bin Shahrol Aman Muhammad Nazrin Shah , Mustafa Wan Azani , Bin Ahmad Shahrol Aman 
Published: December 2020

Abstract
Lateral ankle sprains are among the most common injuries in competitive sports and recreational activities according to studies. Ankle sprains accounted for 70% or more of all reported ankle injuries in high risks sports. However, ankle sprains often only partially treated and there are more than 40% of ankle sprains are recurrent. Even though the ankle rehabilitation treatment exists, but there are some limitations that relates to the current situations. Firstly, the cost for ankle rehabilitation treatments are high and may be a burden to the patients while the traditional rehabilitation treatment performance highly relies on a physiotherapist’s experience and the manual training method makes physiotherapist exhausted. Therefore, ankle rehabilitation robot can help to solve these problems. Morphological Chart are used to generate the concept design while Pugh Method are used to choose the best design. Concept design A (4 DOF Pulley Driven Cable Based Parallel Mechanism Ankle Rehabilitation Robot) are chosen as the best design among 5 concept design due to its advantages in aspect of low cost, easy to use, high portability, high back drivability and fulfilment of ankle rehabilitation exercises.
5.8 GHz Circular Polarized Microstrip Feeding Antenna for Solar Panel Application
Authors: Jamlos Mohd Aminudin , Khairi Maswani , Ariffah Sharifah Nur , Mustafa Wan Azani , Syed Idrus Syed Zulkarnain , Muhammad Atiqah 
Published: December 2020

Abstract
Circular polarized microstrip antenna have been proposed to establish connection among distributed solar farms. The base station antenna of each solar farm permits more precise on the targeting the radio signal and usually is placed at the open area or at a height place so that the radio waves to be transmitted will not be interrupted. For this paper, circularly polarized microstrip patch antenna (CPMSA) is designs and being reviewed. The patch antenna is based on low-cost, but lossy, and the substrate is made of Rogers RT 5880 (lossy). It consists of a rectangular radiator patch, which is fed by microstrip transmission line. In order to realized circularly polarized antenna, the patch has undergone some design modification to achieve circular rotation. Some technique is proposed to achieve CP antenna. The results indicate that the antenna that uses micro strip feed line technique yields 8.55 dB directive gain, return loss and axial ratio at -24.4 dB and 2.05 dB respectivel. The resonance frequency of 5.8 GHz is being selected since it is suitable used for point to point communication among distributed solar farms that located far from each others.
Wind Characterization By Three Blade Savonius Wind Turbine Using IoT
Authors: Liew H F , Rosemizi Abd R , Aihsan M. Z. , Muzamir I , Baharuddin I 
Published: December 2020

Abstract
Fuel has become one of the vital energy in our life and reserves on the earth is lessened years by years. However, still wind that is renewable resource which is clean energy that can replaced a fuel. In this paper, novel idea to monitor the environmental condition and working conditions are characterized by using the small three blade Savonius wind turbines with Internet of Things (IoT) is proposed. Therefore, in terms of characterization, controlling and monitoring the status of wind turbine systems are recommended from anywhere in the world using Internet of Things (IoT) technology. In all repair work, this system is declared with IoT application and ESP 8266 to monitor, capture and diagnose problems in wind turbine. This allows the user to have a remote control mechanism remotely via secure internet web connection. This system helps users control energy sources, manually and remotely using smartphones or personal computers. This work is related to the transmission of data between two units in a timely and fast time without any disturbance. Wind turbine performance has a number of factors which determine its reliability. Next, a system for analyzing the data resulting from the rotation of the wind turbine from a distance is needed so that the study can take place at any time. The parameters that been measured using ESP8266 is voltage, current, power and wind speed. When turbine generate electric, it will display the output by thinkspeak. Various challenges, material of wind turbine and methods for condition monitoring were discussed and the results were analyzed with statistical measures and compared with its standard values.
Acoustic isolation of Jute and Kapok fiber reinforced Polypropylene composites
Authors: Azieyanti N A , Faris R 
Published: December 2020

Abstract
For the requirements of human health initiative especially when emerging of advanced composite material technology, manufactures of high efficient acoustical materials are necessary to regulate the noise pollution. The objective of this study is to fabricate the jute and kapok fiber reinforced polypropylene composites and to analyze the comparison of acoustic isolation effect of jute and kapok fiber reinforced polypropylene composites. To produce these two types of composites material, the raw materials went through a different stage of procedure such as, blending, mixing and heat compression molding process. Polypropylene was filled with jute and kapok fiber at various loading at 0, 10, 20, 30 and 40% each. The composites were prepared by using Brabender Torque Rheometer Plastograph machine and the hot press at temperature 180°C with 50 rpm. The acoustic test was conducted by using insertion loss method in sine wave tube device to measure the different sound level, loss in these two composites material. Based on the result observed, the higher of weight percentage of jute and kapok fiber in each composition, the better of the performance for each material and the optimum result for each composite are determined to be 30% filler loading. It also can be conclude that the used of jute fiber reinforced polypropylene composites give an outstanding result in term of sound absorption and transmission loss compared to kapok reinforced polypropylene composites.
Business model transformation in the manufacturing company – how custom project governance framework enhances the chances of success
Authors: Teoh Chin Hoong , Zain Zuraidah Mohd , Lee Chang Chuan 
Published: December 2020

Abstract
The demand for complete solution providers is trending, and as a result, manufacturing companies, more than ever, are being challenged to transform their approach from hardware-centric to solutions-centric. Failure to do so could be catastrophic. Many companies have started the transformation in order to stay in business and also for enhancement of growth prospects. They work on increasing their chances of success through project governance that applies across a range of solutions. This paper shows that transformation success is enhanced through the use of a custom project governance framework that allows for the selection of the appropriate custom project governance for any solution category. The nature and relationship between the development work and customization of personalization has led the authors to opt for personalization theory as the theoretical lens. This study started with the formulation of the research process, followed by literature review, development work, and finally a qualitative longitudinal study in an advanced analytical equipment company. The positive outcomes from the development work that has been customized for custom solution businesses will allow researchers and practitioners to develop intangible customization of personalization for a project governance framework of their own to aid business model transformation in the manufacturing company.
Biomechanical assessment of different surgical approaches of zygomatic implant placement on prosthesis stress
Authors: Ishak Muhammad Ikman , Rosli M U , Jamalludin Mohd Riduan , Ahmad Termizi S N A , Khor C Y , Nawi M A M 
Published: December 2020

Abstract
The treatment of severely atrophic posterior maxillae without bone augmentation by using zygomatic implants has received a major attention in prosthodontics due to great implant survival rates. However, mechanical implant system failures were still reported irrespective of surgical techniques used for zygomatic implant placement. Two main prominent approaches, the intrasinus and extramaxillary possess their own advantages and drawbacks with no particular indication found, to date, to highlight the best technique in relation to prosthesis stress. Thus, this study emphasised on the computational evaluation of both approaches with regards to the prosthesis responses. Two sets of finite element models comprising bones, soft tissue, implants, abutments, and prosthesis were prepared accordingly. The models were then assigned with the material properties, contact modelling, and loadings as closely as possible with the real conditions. The results showed that the extramaxillary technique reported a more promising maximum stress value and distribution within the prosthesis than the intrasinus. Moreover, the prostheses in both approaches seemed to have a low tendency to failure as the stress levels were significantly less than the stress limit of the material.
Simulation-based optimization of plastic injection molding parameters for mini centrifugal pump body using response surface methodology
Authors: Rosli M U , Jamalludin Mohd Riduan , Ahmad Termizi S N A , Fahim F , Khor C Y , Nawi M A M , Ishak Muhammad Ikman 
Published: December 2020

Abstract
Control parameters of the injection molding and fabrication process are essential to the success of any micro-molding product fabrication. The goal of the study is to simulate and optimise the parameter for the plastic mini micro centrifugal pump body by using Response Surface Methodology. The material for this micro part is Polyphenylene Sulphide (PPS). This study is also investigating the impact of design parameters and processing parameters on the quality of a plastic moulded part to obtain optimal response and meets the requirement specification. The control factors chosen for this study are melting temperature, cooling time and injection pressure. Based on the complex shape of the body part of mini micro pump, volumetric shrinkage and warpage are selected as the essential quality that needs to be controlled. The selected processing parameter are melting temperature, cooling time and injection pressure. As a result, the optimum values suggested by the software are melt temperature of 315.98°C, cooling time of 362s and injection pressure of 62MPa. With small differences error value between solution and simulation, 0.27% for volumetric shrinkage and 0.19% for warpage, the result was acceptable.
Effect of twist blade distributor on velocity distribution in a swirling fluidized bed
Authors: Nawi M A M , Ishak Muhammad Ikman , Rosli M U , Suhaida Rasman Siti Nor , Jamalludin Mohd Riduan , Ahmad Termizi Siti Nor Azreen , Khor C Y 
Published: December 2020

Abstract
Swirling Fluidized Bed (SFB) is one of the liquid-solid interaction in fluidization improved from conventional systems. This system is usually viewable in the power generation, chemical industry, material production and drying processes. Inside the SFB, there is annular blade distributor which will cause the air to pass through and create a swirl motion on the bed. The energy consumption of a fluidized bed system depends on the distributor’s design. The current study has purpose a new design that applies to existing designs of blade inclination angle. The simulation study was conducted using Computational Fluid Dynamics (CFD) to obtain the result of velocity distribution and pressure drops on various blade distributor designs. This study uses two (2) twist angle (80° and 100°) via number of blade distributor (40, 50 and 60). In this study, tangential velocity is the main velocity component by reason of the velocity represents the rotating air velocity in fluidization system. Overall, the design of the 100° twist angle and 40 blades distributor are the best distributors of blades compared to others.