bluuebunny/crossref_metadata_2025_split huggingface dataset:
Influence of Additives on Thermal Properties and Morphological of Magnetorheological Elastomer
Authors: Zarina Ku Ahmad Ku , Khairi MHA , Mazlan SA 
Published: March 2021

Magnetorheological elastomers (MREs) are categorized as part of the smart materials class whose rheological properties can be altered under the influence of a magnetic field. MREs are fabricated by embedding soft magnetic particles such as carbonyl iron particles (CIPs) in a rubber matrix such as silicone and natural rubber. In this project, epoxidized natural rubber (ENR-50) is used as a base material with carbonyl iron particles. Sucrose Acetate Isobutyrate (SAIB) ester is added to the formulation to improve the viscosity and enhance the MRE properties. The isotropic MRE is fabricated using two roll mill and a compression mould. Various tests comprise mechanical, morphology, thermal and magnetic tests were conducted for MRE characterization purpose. The results showed that the addition of SAIB on the MRE had reduced 53% of viscosity in the rubber matrix compared to non-ester based MRE. Dispersion of magnetic particles is improved by the addition of ester as observed through Field Emission Scanning Electron Microscope (FESEM). Additionally, the thermal stability was also improved. Tensile strength of MRE consisting SAIB ester achieved maximum strength of 12.3 MPa and an elongation of 620% compared to non-ester based MRE.Â Â
Magnetic Properties of Magnetite Nanoparticles (Fe3O4-NPs) Coated with Mesoporous Silica by Surfactant Templated Sol-Gel Method
Authors: Izza Taib Nurul , G. St. Pierre Timothy , C. Woodward Robert , J. House Michael 
Published: March 2021

Here, we present the magnetic properties of silica-coated magnetite nanoparticles. We have coated 7 nm of Fe3O4 with cetyltrimethylammonium bromide (CTAB) for phase transformation from hydrophobic to hydrophilic. Core-shell structure of silica-coated magnetite nanoparticles have been obtained using surfactant templated sol-gel method. The obtained silica-coated magnetite nanoparticles were characterized by transmission electron microscopy (TEM), fourier transform infrared (FTIR) spectroscopy and superconducting quantum interference device (SQuID). The hysteresis loops of the coated particles were measured using SQuID and the results showed a superparamagnetic behavior at room temperature. The saturation magnetization (Ms) of the coated particles indicate the presence of non-magnetic surface layers resulting from the strong chemical attachment of the silica to the Fe3O4â€™s surface, also observed by FTIR spectroscopy.Â Â Â
Influence of Different Atomic Percentage of Silver Doped Nano Zinc Oxide on Titanium Dioxide Seeded Substrate
Authors: Zulaikha Umbaidilah Siti , Amierah M. Asib Nur , Afaah Abdullah Nurul , Rusop Mohamad , Khusaimi Zuraidah 
Published: March 2021

Non-doped ZnO/TiO2 and Silver (Ag) doped ZnO/TiO2 nanostructures thin film were successfully synthesized on glass substrate by using sol-gel spin coating technique for deposition of TiO2 seed layer and solution immersion method for growth of Ag-doped ZnO/TiO2 nanostructure. Different atomic percentage (at%) which is 0.5, 1.0, 1.5, 2.0 and 2.5 at% of Ag doped were added in 0.4 M of Zn2+ solution. The EDX result revealed that the sample was composed of Zn, O and Ag elements which confirmed the existence of Ag element in the sample. The XRD spectra shows that the intensity of the (002) peak of 0.5 at % Ag-doped ZnO/TiO2 was the highest compared to other samples and all the samples revealed polycrystalline structure belonging to the ZnO hexagonal wurtzite type. The UV-vis absorbance also indicates that 0.5 at% Ag-doped ZnO/TiO2 has the highest absorbance and non-doped ZnO/TiO2 displayed the lowest absorbance compared to the other sample. Thus, 0.5 at% of Ag-doped ZnO/TiO2 is the best candidate for optical application due to the higher intensity and greater absorbance.Â Â
Effects of EC Plastisizer and SiO2 Nano-Filler on Electrical and Thermal Properties of Chitosan-G-PMMA based Solid Polymer Electrolytes
Authors: Kartini. Jaafar Nor , Malik Marwan Ali Ab , Zu Azhan Yahya Muhamad , Zakaria Rosnah , Zafirah Zainal Abidin Siti 
Published: March 2021

Composite grafted polymer electrolyte based on chitosan grafted poly(methyl methacrylate) (Ch-g-PMMA) have been prepared and investigated. The lithium triflouromethanesulfate salt (LiCF3SO3 or LiTf), ethylene carbonate (EC) and SiO2 are applied as a salt, plasticizer and ceramic filler, to the polymer host system. Impedance spectroscopy was performed at room temperature. The highest conductivity of 1.63 x 10-4 Scm-1 was obtained for the grafted polymer with 50 wt. % of LiCF3SO3 and enhanced to 2.23 x 10-4 Scm-1 with the addition of 30 wt. % EC. The conductivity is further enhanced to 4.21 x 10-4 Scmâˆ’1 with the addition of 6 wt. % SiO2. Both additives caused a reduction of the Ch-g-PMMA crystalline phase content and increased segmental flexibility leading to conductivity enhancement.Â Â
Personal Injury Claims (PIC) Database Modeling in Malaysia
Authors: Ruslawati Nik Mustapa Nik , Awang Ali Najihan , Husna Jamian Nurul , Abdul Hamid Hussin , Syaeda Mat Saleh Syadatul , Baharain Roziana 
Published: March 2021

Road accident often leads to claims for personal injury by aggrieved parties. In Malaysia, courts have been using multiplier-multiplicand approach. This approach seems to be outdated and unfair to the claimant. Presently, the approach excludes the claimant's personal condition in the calculation of quantum of damages. Hence, this study uses the Ogden Table as introduced in the United Kingdom as benchmarking guidelines, by taking into account of all aspect of claimant's personal condition for the purpose of such calculation. This study aim is to build upon a proposed data modeling system known as Entity Relationship Diagram (ERD) and the created process modeling known as data flow diagram (DFD). In so doing, the claimants will insert his input data, run it through the first process, and store the information in the claim injury part database. They can also edit and store to claim injury part database on their own. This will generate a report with the information in claim injury part database and can be viewed by claimant, court and lawyer as target users. It is hoped that it will facilitate the calculation of injury claim which would serve justice and accuracy of personal injury in road accidents.Â Â
Retinal Fundus Image Blood Vessels Segmentation via Object-Oriented Metadata Structures
Authors: Firdaus Ahmad Fadzil Ahmad , Ahmad Zaaba , Elaiza Abd Khalid Noor , Ibrahim Shafaf 
Published: March 2021

Retinal fundus image is a crucial tool for ophthalmologists to diagnose eye-related diseases. These images provide visual information of the interior layer of the retina structures such as optic disc, optic cup, blood vessels and macula that can assist ophthalmologist in determining the health of an eye. Segmentation of blood vessels in fundus images is one of the most fundamental phase in detecting diseases such as diabetic retinopathy. However, the ambiguity of the retina structures in the retinal fundus images presents a challenge for researcher to segment the blood vessels. Extensive pre-processing and training of the images is necessary for precise segmentation, which is very intricate and laborious. This paper proposes the implementation of object-oriented-based metadata (OOM) structures of each pixel in the retinal fundus images. These structures comprise of additional metadata towards the conventional red, green, and blue data for each pixel within the images. The segmentation of the blood vessels in the retinal fundus images are performed by considering these additional metadata that enunciates the location, color spaces, and neighboring pixels of each individual pixel. From the results, it is shown that accurate segmentation of retinal fundus blood vessels can be achieved by purely employing straightforward thresholding method via the OOM structures without extensive pre-processing image processing technique or data training.Â Â Â Â Â Â
Literature Review: Some of TVET Area Will Be Eliminated Due to Industrial Revolution 4.0, is That True?
Authors: Syahril Chairani Vici , Bruri Mochamad , Minghat Dahar 
Published: March 2021

The 4.0 industrial revolution that began to be known since 2011 in Germany had a significant influence on several aspects of the world. Automation and digitilization that comes through Industrial Revolution 4.0, forecasted will brought many impact to demand and skillset of occupation and industry. Even that change is expected to have a lot of impact on Technical Vocational Education and Training (TVET). As a vocational education that has the main objective to prepare graduates to be able to work and be accepted in the industrial world. The aim of this study firstly is to provide a view of the issue about job lost due to the industrial revolution 4.0, is true or not. Secondly is to give an overview about the TVET area that have most possibility impact to be eliminated due to industry 4.0. To overcome this, this paper will explain a literature study from journal articles, opinion papers, conceptual papers, research study, etc. were analyzed for content related to Industrial Revolution 4.0 and TVET. It was concluded that (1) Occupation will be transformed by automation due to Industrial Revolution 4.0, not eliminated; (2) There is no certainty about which areas on TVET will be lost, but the areas that have the risk of being automated in TVET high school in Indonesia are administration, tourism and health.Â Â
Evaluation of Blended Learning Implementation which is Conditioned to Optimize the Mastery of Student Knowledge and Skills
Authors: Rozahi Istambul Muhammad , Supriadi Hari , . . 
Published: March 2021

Learning process is part of the E-Procurement courses curriculum in Information Systems Study Program at Widyatama University. All this time, in the face-to-face method of learning process, students have not been able to optimize the mastery of knowledge and skills as expected. One of the things that the Information Systems Study Program did to optimize said mastery is applying the blended learning program in e-Procurement courses. This study uses mixed method evaluation approach in evaluating various stages of the process to implement a blended learning program. Meanwhile, the evaluation method used consists of 2 parts of the model namely 1) CIPP, an evaluation carried out on context, input, process, and product, 2) The Flashlight Triad, an evaluation of activities that utilize information technology online. As the final result of evaluating the implementation of blended learning based on observations and research that has been done, there is an optimization of the increase in mastery of students' knowledge and skills, after conducting various activities that are conditioned on face-to-face activities combined with online ones. The results of this evaluation mean that a well-conditioned blended learning program can influence students in terms of motivation, therefore mastering the knowledge and skills of a course can be optimized through the student learning experience.Â Â
The Heat Treatment effect of Nickel-coated Steel Plate Substrate by Electroless Plating on Hardness Test
Authors: Hirary Marisa , Ramelan Aditianto , . . 
Published: March 2021

The present study was aimed to analyze the effect of heat treatment on phase change of thin layer of nickel on steel plate substrate. The coating process was electroless plated using chemical solution. This work requires nickel solution as the main component of coating. Substrate was coated by electroless nickel plating at pH 7.5 and temperature was 85 â„ƒ for 100 minutes with heat treatment for 30 minutes at temperature are 320 â„ƒ and 340 â„ƒ. Furthermore, the substrate will be analyzed with metallography method to obtain visualization of thickness on plate surface. The result show that the layer on steel surface has a uniform thickness. Based on the hardness test, the heated plated resulting the better performance compared with the non-heated one. Surface hardness increased from 134VHN to 646VHN with a coating thickness of 17.49Î¼m and a XRD characterization showed a broadened Ni peak. After heat treatment at temperature are 320â„ƒ and 340â„ƒ, the surface hardness increased up to 851VHN and 1020VHN.Â Â
Low Complexity Interference Alignment for Distributed Large-Scale MIMO Hardware Architecture and Implementation for 5G Communication
Authors: Galih Savitri , . . , . . 
Published: March 2021

Massive MIMO or Large Scale MIMO is a promising solution for achieving superior data rates in 5G communication systems. However, it has limitation in term of scalability and coverage for users that has highly spatial separation. Distributed massive MIMO is expected to enhance these drawbacks. One main problem arises in this scheme is the MIMO interference channel condition that can be copied by interference alignment algorithm. The main consideration for interference alignment algorithm in distributed Massive MIMO is to achieve low complexity precoding to eliminate interference channel condition and to design efficient hardware architecture for its implementation. Previous research regarding IA for Distributed Massive MIMO indicate that the complexity issues is still not widely discussed. This paper proposed the low complexity IA scheme for large scale MIMO system based on limited interferer and the implementation of low cost interference alignment and wireless synchronization for distributed MIMO using software defined radio hardware. From the simulation result, it shows that limited interferer IA algorithm achieve acceptable BER performance, i.e. in order of 10-3. The hardware implementation of the IA precoding matrix computation is also discussed. Based on the experiment, it is show that the proposed algorithm and architecture achieved higher hardware performance compared to the linear IA.Â Â
Multi-Relational Latent Syntax-Semantic â€œSYNTAXLSEMâ€ Analysis Model for Extracting Quraâ€™nic Concept a New Innovative for Sustainable Society
Authors: Abdul Rahman Asma , Abdul Rahman Ahmad , Fadhil Md Din Mohd 
Published: March 2021

A flexible model that can represent Qurâ€™anic concept is required for people to understand the content of the Quran. In this research, we propose a Multi-Relational Latent Syntax-Semantic Analysis Model (SYNTAXLSEM) based on a combination of Arabic Semantic and six multiple relations between words, which are synonym, antonym, hypernym, hyponym, holonym and meronym, to precisely extract Qurâ€™anic concept. The existing literatures focus only on very limited relationships between words which could not extract the in-depth concept of Qurâ€™anic without considering the importance Arabic Semantic. Therefore, the objectives of this research are: (1) to analyse and categorize Quranic words according to Arabic Semantic patterns, (2) to propose a new model for extracting Quranic concept using SYNTAXLSEM, (3) to investigate semantic relationships between Quraâ€™nic words, and (4) to validate the proposed model with Arabic linguistic, and Quraâ€™nic experts. This research will be conducted qualitatively through content analysis approach a new innovative technological technique. It is expected that the model will come out with a precise analysis for extracting Qurâ€™anic concept. This will be very significant in enhancing the overall Quranâ€™s understanding among the society in Malaysia and Muslimâ€™s world for sustainable society.Â Â
Biological Activity and Cytotoxic Effect of Iraqi Wild Mentha arvnesis Total Flavonoid
Authors: Yaseen Mohammed Hasan Zainab , M.F. Al-Halbosiy Mohammad , Al-Nauimi Ebtehal 
Published: March 2021

The major source of flavors and fragrances raw material is Mentha arvensis. The flavonoids were extracted from the leaves of the mature Mentha arvensis by reflex, and then the flavonoids of the extract were detected qualitatively with TLC technique. The plant was found to be rich in flavonoids, especially Rutin, Quercetin, Kaempferol, luteolin and others. This study conducted to assess the biological and cytotoxic effect of this purified total flavonoid on cell lines (L20B and MCF-7) and Leishmania (Leishmania tropica and Leishmania donvani). The extract inhibited the growth of cell line to reach a maximum growth inhibition rate 64.5 % at the concentration (5 mg/ml) for L20B and 52.4% for MCF-7 at the concentration (10 mg/ml) in comparison with negative control. Also the concentration 5mg/ml of plant extract caused an inhibition in the growth of both type of Leishmania to reach to 30.7% for Leishmania tropica and 50.2 % for Leishmania donovani.Â Â
Investigation of Wind Energy to Generate Electric Power and its Role to Reduce Environmental Pollution in Iraq
Authors: Kareem Ameen Shadan , Saeed Sedeeq Murad , Bolatturk Ali 
Published: March 2021

Wind energy is one of the renewable energy that has been widely used round the world which is abundant, renewable, and generally available. The present paper established to study the possibility of generating electric power by wind turbines for three important cities in Iraq located in terms of altitude from sea level and climate, namely (Mosul in north, Baghdad in middle and Basra in the south of Iraq). The calculations depend on the hourly meteorology dataâ€™s like wind speed, wind direction and air temperature taken from (Iraqi meteorological organization and seismology) since 2005 to 2015. Noting that, the calculations had been done for three variable types of wind turbine found in global markets which differ in capacity, cut-in velocity, cut-off velocity, blade diameter and initial cost. The main aims for present paper can be divide in three stages. First, it studies the possibility of using wind turbines for the selected cities. Then, it estimates the amount of annual electric power generation (EPG) and itâ€™s contribution to minimize the environmental pollution if the same power generated by gas turbine which regarded the diffuse method in Iraq. Finally, an economic analysis is also carried out for each turbine. Life cycle assessment software (SimaPro V 7.2) has been used to obtain the amount of emissions produced per kWh electricity power by gas power plant. (P1-P2) method has been used to estimate the economic dataâ€™s for the project. The results of the research will decide the most appropriate zone to do the projects and the best turbine to give maximum EPG and its ability to reduce emissions with giving financial gain and payback period as an economic value to encourage the investors to apply like this project.Â Â
Development of an Analytical Software for Communication management in Project Management Offices
Authors: Firas Kh. Jaber Assis. Prof Dr. , Faiq M. S. Al-Zwainy Assis.Prof. Dr. 
Published: March 2021

This study deals with the problem of communication management system in Project Management Office (PMO) in Iraqi construction sectors. The main objective of this study was to estimate and develop the Communication Management System (CMS). Methodology: Visual basic language has been used to build analytical software which is (Communication Management Software). This software displays the overall information in every single project management office followed by the evaluation of the actuality of communication methods with two arithmetic equations so that estimate the effectiveness and barriers of Communication Management System. Statistical Package for the Social Sciences, SPSS vr.23.0 was used for Data analysis and determining the equations to calculate the efficiency and barriers of PMO; Developed Computer Software: Based on the data analysis results, it will provide computer software to calculate the efficiency and barriers of PMO and validation and verification of computer software followed by the discussion of the results. CMS was weighed depending on a questionnaire of ten project management engineers in Iraqi construction zones. Results showed that 100% stated to the simple usage of the software, and 75% of the research sample proven that the software discussed three matters which are cost, time, and performance. The result expressed that the half of the studied sample proved the CMS accuracy to valuation certainty of CMS. The 55% of the resulting sample expressed is very good software for both increasing the performance in the middle of the members of the Project Management Office. Evaluation of the proposed software indicated that it is effective in communication management in Project Management Office (PMO).Â Â
Antioxidants and Lipids Peroxidation Status in Patients with Colon Cancer
Authors: Hassan Ali Zahraa , Hadi Al-Saadi Narjis 
Published: March 2021

Colon cancer is still one of the leading causes of cancer death worldwide and the second most common cause of mortality from cancer. It is caused by many factors such as hereditary, environmental, and dietary factors and insufficiency of physical activity. This study included fifty patients with colon cancer (21 female and 29 male) their ages ranging from 20 to 70 years old. Those patients were enrolled from Al-Hussain Medical City/Kerbala, and 33 healthy subjects who were free from signs and symptoms of cancer their ages were matched with cancer patients as a control group. Reduced glutathione, catalase, malondialdehyde and ceruloplasmin oxidase were measured in sera of those patients and the control group. The results showed a highly significant decrease (p = 0.0001) in reduced GSH levels and a highly significant increase (p = 0.0001) in the concentration of MDA in sera of colon cancer patients compared with the control group, whereas CAT and Cp oxidase activity did not show a significant difference. The demographic study revealed a significant decrease (p < 0.001) in the activity of CAT and a significant increase (p = 0.05) in the level of MDA in male patients comparing with the female group. The results of this study indicate that free radicals and antioxidants play an important role in colon cancer.Â Â
Assessment of the Performance for a Hybrid PV / Solar Chimney
Authors: Sabah Hussein Abdullah , Khalil Ahmed Omer 
Published: March 2021

In this study, we assessed the performance of a new design of the solar chimney by merging the collector through integrated solar panel by using a solar cell as a glass roof. Assessment of the performance of this new design is the main purpose of this study. Experimental work conducted at Kirkuk (35.46 oN, 44.39 oE) northern Iraq. The experiments conducted during the summer season. A hybrid solar chimney consisting of a solar panel cover replaces the glass cover in the conventional solar chimney. Different instruments used to measure temperature, air velocity, electric current and voltage of solar panel. An experimental model was built to anticipate the performance of a hybrid chimney.It has been shown, that there is an increase in the temperature of the PV panel from the beginning of the day with increased of the incident solar radiation values. It is observed that the angle (45) is the best angle for the energy production. Also, it is noted that (45-panel angle) gives the highest efficiency to this system of the three angles that have been measured (30Â°, 35Â°, 45Â°). The results showed the efficiency of the PV/ solar chimney ranges from 8 % to 13 %. The maximum rise of the air temperature in the solar collector it is found to be 2â€“3 oC on a typical day.Â Â